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CIRO Exam Study Guide Page 1 of 66

©2019 Refrigerating Engineers & Technicians Association (RETA) Updated August 2019

Refrigerating Engineers & Technicians Association

CIRO EXAM STUDY GUIDE Table of Contents

Introduction to the CIRO Examination Study Guide 2

Using RETA References On-Screen 2

Calculations and Refrigeration System Screens 5

Sample CIRO Screen and Questions 6

Electrical Diagram and Questions 8

Formulas 9

Theoretical Discharge Chart – PSIG Scale 10

Theoretical Discharge Chart – PSIA Scale 11

Enthalpy Diagram 12

Psychrometric Chart 13

Figures 3 and 4 14

Figure 5 15

Figure 17 16

Figure 18 Electrical Diagram 17

Ammonia Safety Data Sheet (SDS) 18

CIRO Troubleshooting System Screens 1-24 27 Ammonia Saturated Properties Table 49

HCFC-22 Saturated Properties Table 57



Introduction to the CIRO Study Guide

This CIRO Examination Study Guide is designed to help you prepare to demonstrate what

you know and can do in this RETA certification test. You will be tested on concepts

addressed in IR-1, IR-2, IR-4, BE-1 and BE-2.

You will improve your chances of earning your CIRO credential by treating this CIRO

Study Guide as you would the technical manuals in a refrigeration facility where you work.

Your chances of earning the CIRO credential improve if you are familiar with the details in

the CIRO Study Guide. Just as your job requires that you know what is in operating

manuals and when to refer to them to understand or resolve a problem, the CIRO test

requires that you know what is in the References document and when to use it. You will not

be told when to use the references for this test.

Using RETA References On-Screen

References for each RETA test are in a PDF that appears on the screen next to test questions.

You will have the following tools for using the PDF.

Move the red vertical line separating the two sections from side to side to assign more

screen space to the References or to questions.

Zoom in or out to make pages in the References PDF larger or smaller by clicking on the plus

(+) or minus (-) symbols at the top of the screen. This tool bar disappears after a few seconds.

The toolbar reappears when you move the mouse over the References document.

Scroll from page to page to find the location in the References that has the table, formulas or other information you want to use.



The following screens show how this will work during the test.

Screen 1 The sample question asks about controlling an ammonia fire. The

References document title page appears on the right side of the screen.

The toolbar at the top of the References document allows you to zoom in and zoom out by

clicking the plus (+) or minus (-) symbols. The toolbar disappears after a few seconds. The

toolbar reappears when you move the mouse over the References document. You cannot

use the save or print functions in the toolbar during the test. If you click on those icons, you

need to click “Cancel” in the menu that appears for either function to return to References.

Do not use the CTRL + F keys for searching in the PDF as this will cause the testing system

to think a security violation is happening and will automatically log the test taker out and

the login screen will appear

Screen 2 Information to help answer the question appears in the Ammonia SDS.

Scroll to the opening page of the SDS.



Screen 3 The answer to the question appears in the first paragraph of Section 5,

Fire Fighting Measures, in the ammonia SDS. In this screen the vertical red line has been

moved to the left to increase the screen space assigned to the References document.



Calculations and Refrigeration System Screens

All calculations required in this test can be completed with a simple calculator. A

scientific calculator is NOT required to perform well on this examination. The screens

that appear in the CIRO examination provide information about operating conditions in a

refrigeration system. Some screens include information about both “NORMAL” and

“ABNORMAL” operating conditions. The screens do not specify how much time has

passed between these two sets of data. Several months may have passed between the time

when the “NORMAL” and “ABNORMAL” readings were recorded.

The CIRO examination requires you to demonstrate that you can use these screens to:

Determine the condition of the refrigerant at any place in the system by knowing how to

use the information provided.

Analyze the findings of the conditions and apply your knowledge to adjust system

components to resolve a problem and/or achieve a better running condition.

Determine the cost of operating under the conditions indicated in the screens. In both

dollars per hour and in power demand or consumption over time.

Use refrigerant properties tables in the CIRO References and in this CIRO Study Guide

to interpret information and/or solve a problem in the system’s operating conditions.

CIRO references in this Study Guide will be available on screen during the examination.

A sample screen appears on the next page. This is followed by a series of questions you

should consider as you prepare to take the CIRO Examination.

Other sections of this CIRO Study Guide provide similar guidance for this examination.

These include a list of formulas, an Ammonia SDS, Theoretical Discharge Charts, and

refrigerant properties tables. These are followed by 24 screens that provide information

that may appear on the CIRO exam.



SAMPLE CIRO SCREEN 300 HP SCREW COMPRESSOR – NH3

NORMAL CONDITIONS

SUCTION PRESSURE 32 PSIG SCREW COMPRESSOR MOTOR

AMPS

295 AMPS

DISCHARGE PRESSURE 154 PSIG SCREW COMPRESSOR MOTOR

VOLTAGE

480 VAC

OIL PRESSURE 55 PSID SCREW COMPRESSOR SLIDE

VALVE POSITION

100%

SUCTION TEMP 26°F CONDENSER WATER SUMP

TEMP

75°F

DISCHARGE TEMP 171°F CONDENSED LIQUID TEMP 85°F

OIL TEMPERATURE 136°F CONDENSER OUTLET PRESSURE 151 PSIG

OIL COOLER – OIL INLET

TEMP

171°F

THERMO SIPHON OIL COOLING

CONDENSER OUTLET NOT SUBCOOLED

OIL COOLER –

REFRIGERANT OUTLET

TEMP

85°F

NOTES: POWER FACTOR IS 0.86

MOTOR EFFICIENCY IS 93% CONDENSER TYPE IS EVAPORATIVE

MOTOR TYPE IS 3 PHASE

SAMPLE CIRO SCREEN 300 HP SCREW COMPRESSOR – NH3

ABNORMAL CONDITIONS


AMPS

339 AMPS


VOLTAGE

480 VAC


VALVE POSITION

100%


TEMP

75°F




TEMP

192°F

THERMO SIPHON OIL COOLING


OIL COOLER –

REFRIGERANT OUTLET

TEMP

95°F

NOTES: POWER FACTOR IS 0.86

MOTOR EFFICIENCY IS 93%

CONDENSER TYPE IS EVAPORATIVE

MOTOR TYPE IS 3 PHASE



Answer the following questions based on NORMAL Conditions in the Sample CIRO Screen.

What is the superheat at the compressor inlet?

What is the temperature differential between the oil cooler oil inlet and the oil

outlet? What is the temperature differential between the oil cooler coolant outlet

and the oil outlet? What is the superheat at the compressor outlet?

What is the theoretical discharge temperature of the compressor under these conditions?

What is the pressure drop from the compressor discharge to the condenser outlet?

What is the excess pressure due to non-condensables in the system?

What is the condition of the refrigerant leaving the oil cooler?

How much horsepower is being developed by the compressor motor under the

normal conditions?

What is the instantaneous Kw demand developed by the compressor motor under normal

conditions?

If power is $0.17 per kwh, how much does it cost to run the motor under normal conditions

for one hour? For one day (24 hours)? For one week? For a 5000 run-hour year?

Answer the following questions based on ABNORMAL Conditions in the Sample CIRO

Screen.

What is the superheat at the compressor inlet?

What is the temperature differential between the oil cooler oil inlet and the oil

outlet? What is the temperature differential between the oil cooler coolant outlet

and the oil outlet?

What is the oil cooling coolant?

What is the superheat at the compressor outlet?

What is the theoretical discharge temperature of the compressor under these conditions?

What is the pressure drop from the compressor discharge to the condenser outlet?

What is the excess pressure due to non-condensables in the “abnormal” system?

What is the condition of the refrigerant leaving the oil cooler?

How much horsepower is being developed by the compressor motor?

What is the instantaneous Kw demand developed by the compressor motor?

If power is $0.17 per kwh, how much does it cost to run the motor under normal conditions

for one hour? For one day (24 hours)? For one week? For a 5000 run-time year?

What is the excess cost per hour for running poorly? For 24 hours? For one week? For a

5000 run-hour year?

What would happen to the condenser sump temperature if the fans were not running if

you assume the wet bulb temperature is the same as under NORMAL conditions?

What would happen to the condenser sump water temperature if the pump was not

running if you assume the wet bulb temperature is the same as under NORMAL

conditions?

What might happen to the condenser sump water temperature if the coils were sealed

up significantly?

What might be going on that causes the higher condensing conditions?



Figure 18 Electrical Diagram

Answer the following questions based on the above electrical diagram.

How many neon lamps are in the drawing?

Is there a latching circuit in the drawing?

Which level switch closes on “low”?

What does 1CR do?

What switch is single pole – double throw?

What happens if 1CB trips? When is 2LT illuminated?

What has to happen for 1CR to be energized?



Formulas











Figure 3

CONDENSER 95°F OPERATING TEMPERATURE

181 PSIG

C

NH3 RECEIVER

95°F

33.5 PSIG

INTERMEDIATE

F

B

D

INTERCOOLER E COMPRESSORS

20°F A

EVAPORATOR 8.7" HG

HAND EXPANSION

VALVE

-40°F OPERATINGTEMPERATURE


CONT ROL

PLSLINE

LSLINE

D

EL

M

RELIEF

150# PSIG

FIGURE 5RETA CERTIFICATION EXAM






Figure 18 Electrical Diagram



Safety Data Sheet

Product name : Anhydrous Ammonia

HBCC SDS number : CA10000

Synonym

Product use and

: Ammonia; NH3

: Refer to label or call

Restrictions

Manufacturer : Corporate Headquarters Corporate Safety & Compliance

Contact Address Hill Brothers Chemical Company Hill Brothers Chemical Company

1675 North Main Street 7121 West Bell Road, Suite 250

Orange, California 92867 Glendale, Arizona 85308

714-998-8800 623-535-9955 - Office 800-821-7234 623-535-9944 - Fax

Emergency telephone : 800-424-9300

Number (Chemtrec)

Website : http://hillbrothers.com

Classification : Flammable Gases – Category 2

Gases Under Pressure – Compressed Gas Acute Toxicity: Inhalation

– Category 3 Skin Corrosion/Irritation – Category 1B Serious Eye Damage/Eye Irritation – Category 1 Aquatic Toxicity (Chronic)

– Category 1

Signal Word : DANGER

Pictogram(s) :

Hazard Statements : H221 Flammable Gas.

H280 Contains gas under pressure; may explode if heated. H331 Toxic if inhaled. H314 Causes severe skin burns and eye damage.

H410 Very toxic to aquatic life with long lasting effects.

1. Product Identifier and Company Identification

2. Hazard Identification

http://hillbrothers.com/



Precautionary Statements

Response : P304 + P340 + P311: IF INHALED: Remove victim to fresh air and keep

at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor.

P301 + P330 + P331+P310: IF SWALLOWED: Rinse mouth. Immediately call a POISON CENTER

of physician. Do NOT induce vomiting. P303 + P361 + P353 + P363+P310: IF ON SKIN (or hair): Take off

immediately all contaminated clothing. Rinse skin with water or shower. Wash contaminated

clothing before reuse. Immediately call a POISON CENTER or doctor.

P305 + P351 + P338 + P310: IF IN EYES: Rinse cautiously with water for several minutes. Remove

contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor.

Prevention : P280: Wear protective gloves, protective clothing, eye protection and

face protection. P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. – No Smoking.

P271: Use only outdoors or in a well-ventilated area. P273: Avoid release to

the environment. P260: Do NOT breathe gas or vapors.

P264: Wash hands thoroughly after handling. P391: Collect spillage.

P377: Leaking gas fire: Do not extinguish, unless can leak be stopped safely. P381: In case of leakage, eliminate all ignition sources.

Storage : P405: Store locked

up. P410: Protect from sunlight.

P403+ P233: Store in a well-ventilated place. Keep container tightly closed.

Disposal : P501: Dispose of contents and container in accordance with all

local, regional, national and international regulations.

CAS Number Ingredient Name Weight %

7664-41-7 Anhydrous Ammonia (NH3) 99.8 – 99.999% wt.

7732-18-5 Water 0.2% -.001% wt.

Ingestion : If this gas is swallowed in liquid form, keep victim warm and OBTAIN

IMMEDIATE MEDICAL ATTENTION. If signs of respiratory obstruction develop, immediately transport to

medical facility. Do not induce vomiting. Never give fluids or induce vomiting if patient is unconscious

or having convulsions.

3. Composition/Information onIngredients

4. First AidMeasures



Inhalation : Remove victim to fresh air. Give oxygen if breathing is difficult. If

breathing has stopped, start artificial respiration. OBTAIN IMMEDIATE MEDICAL ATTENTION.

Skin : Apply water immediately to exposed areas of skin and continue for at

least 30 minutes. Remove contaminated clothing, shoes, and constrictive clothing while continuing to

apply water, being careful not to tear the skin. If skin surface is damaged, apply a clean dressing. If skin

surface is not damaged, cleanse the affected area(s) thoroughly with mild soap and water. Do not apply

salves or ointments to affected areas. OBTAIN IMMEDIATE MEDICAL ATTENTION.

Eyes : Remove victim to fresh air. Immediately flush with plenty of water for

at least 30 minutes with the eyelids held apart. OBTAIN IMMEDIATE MEDICAL ATTENTION.

Medical Conditions : Ammonia is a respiratory irritant. Persons with impaired pulmonary

function may be at an increased risk from exposure. Also pre-existing skin disorders may be aggravated

by exposure.

Effects of : N/A Overexposure

Summary of Acute Health : N/A Hazards

Ingestion : This material is a gas under normal atmospheric conditions and ingestion

is unlikely. Ingestion of liquid ammonia may result in severe irritation or ulceration of the mouth, throat

and digestive tract which may be displayed by nausea, vomiting, diarrhea and, in severe cases, collapse,

shock and death.

Inhalation : Irritation to the mucous membranes of the nose, throat and lungs is

noticeable at 100 ppm. Concentrations above 400 ppm will cause throat irritation and may destroy

mucous surfaces upon prolonged contact. High concentrations can cause pulmonary edema.

Breathing air containing concentrations greater than 5,000 ppm may cause sudden death from

spasm or inflammation of the larynx.

Skin : Liquid Ammonia produces severe skin burns on contact. Ammonia gas

may cause skin irritation, especially if skin is moist. The liquid can cause skin damage resulting from

combined freezing and corrosive action on the skin. Atmospheric concentrations above 30,000 ppm will

burn and blister skin after a few seconds of exposure.

Eyes : Exposure to high gas concentrations may cause temporary blindness

and severe eye damage. Direct contact of the eyes with liquid ammonia will produce serious eye

burns.

Note to : N/A Physicians

Summar

y of Chronic Health : N/A



Extinguishing : Use Water Spray or Water Fog, Carbon Dioxide, Polar or Alcohol Foam,

Dry Chemical. Halon may decompose into toxic materials. Carbon dioxide can displace oxygen. Use

caution when applying halon or carbon dioxide in confined spaces.

Special Exposure : Gas may ignite at vapor concentrations between 16% and 25% in air.

Hazards However, ammonia-air mixtures are difficult to ignite and burn with

little vigor. In the absence of oxygen enrichment, the risk of initiating an accidental fire or explosion is

low. Do not allow ammonia vapors to accumulate in confined areas where ignition may occur. Intense

heating particularly in contact with hot metallic surfaces may cause decomposition of ammonia

generating hydrogen, a flammable gas.

Special Protective : Stop flow of gas. Use water fog to keep fire-exposed containers cool and

to Equipment for protect personnel effecting the shut-off. Wear self-contained breathing

Firefighters apparatus (SCBA) and encapsulating chemical protective clothing.

Approach fire upwind and evacuate area downwind. Emergency responders in the danger area should

wear bunker gear and self-contained breathing apparatus for fires beyond the incipient stage (29CFR

1910.156). In addition, wear other appropriate protective equipment as conditions warrant (See Section

VIII). Isolate damage area, keep unauthorized personnel out. Stop spill/release if it can be done with

minimal risk. If this cannot be done, allow fire to burn. Move undamaged containers from danger area if it

can be done with minimal risk. Stay away from ends of container. Water spray may be useful in

minimizing or dispersing vapors. Cool equipment exposed to fire with water, if it can be done with minimal

risk.

Fire Fighting : Dry Chemical or carbon dioxide are recommended extinguishing media.

Procedures Stop flow of gas before extinguishing fire. Use water spray to keep fire

exposed containers cool. Extinguish fire using agent suitable for surrounding fire.

Combustible. Wear goggles, self-contained breathing apparatus, and rubber over clothing (including

gloves). Stop flow of gas, or liquid if possible. Let fire burn.

If material involved in fire: Cool all affected containers with flooding quantities of water. Apply water from

as far distance as possible. Use water spray to knock-down vapors. Solid streams of water may spread

fire. Don not use water on material itself. Do not apply water to point of leak in tank car or container.

5. Fire FightingMeasures



NFPA Rating : Health - 3

Flammability -

1

Instability - 0

0=Insignificant 1=Slight 2=Moderate 3=High 4=Extreme

Uniform Fire : According to the (UFC) Uniform Fire Code Standard 79-3 (2000), the degree

Code Rating of Hazard is 3-3-0 in a confined space.

Additional Description : Inhalation Hazard Requirement

Personal : Note that although ammonia gas is lighter than air, sudden release may

Precautions generate an aerosol of liquefied ammonia which may cling to the ground

for long distances. May ignite in the presence of open flames and sparks.

Narrow lower to upper combustion range (16-25%) makes ignition difficult. Keep all sources of ignition

away from spill/release. Do not apply water onto leaking tank. Stop the flow of gas or liquid. Use water to

protect personnel effecting the shut-off. Approach from upwind. Evacuate the area immediately. Eliminate

all open flames in vicinity of indoor spills or released vapor. Water fog can be used to cleanse atmosphere

of ammonia vapor. Downwind areas can be protected by water fog nozzles positioned downwind.

Emergency Procedures : Do not enter a visible cloud of ammonia. Isolate and evacuate the leak

or spill area immediately for at least 150 feet in all directions. For larger spills, isolate at least 300 feet in

all directions and then evacuate area downwind at least 0.4 miles in width and at least 0.8 miles in length.

Keep area isolated until gas has dispersed.

Methods of : Dike liquid spills to contain liquid. Containment

And Clean-Up

Safe Handling : Contents are under pressure. The use of explosion-proof equipment is

recommended and may be required (see appropriate fire codes). Do not enter confined spaces such

as tanks or pits without following proper entry procedures such as ASTM D-4276. Protect against

physical damage.

6. AccidentalReleaseMeasures

7. HandlingandStorage



Storage : Outside shaded area or detached storage is preferred. Inside storage

should be in a cool, dry, well ventilated, noncombustible location, away from all possible sources of

ignition.

Work/Hygienic : Avoid contact with skin and avoid breathing vapors. Do not eat, drink, or

Practices smoke in work area. Wash hands before eating, drinking, or using restroom.

Do NOT place food, coffee or other drinks in the area where dusting or splashing of solutions

is possible.

Ventilation : Local exhaust is essential. Spark-proof fans desirable with mechanical

ventilation. Ducts should be located at ceiling level and lead upwards to the outside. Eyewash and

safety shower should be available in work area.

Occupational Exposure : CAL-OSHA: 25 ppm, 18 mg/m3 Oregon-OSHA: 25 ppm, 18 mg/m3; STEL:

Limits 35 ppm, 27 mg/m3

Chemical Name: Anhydrous Ammonia

Exposure Limits (TWAs) in Air

CAS Number IDLH ACGIH TLV OSHA PEL STEL

7664-41-7 300 ppm 25 ppm, 18 mg/m3 50 ppm, 35

mg/m3

35 ppm, 27 mg/m3

Protective Equipment : Rubber or synthetic chemical gloves and boots should be worn as well

as cotton clothing and underwear. Rubber or synthetic chemical coats or aprons should be available, an

encapsulating chemical protective clothing garment is desirable for heavy exposures. The use of long

sleeved clothing closed at the neck is advised. Change if clothing becomes contaminated.

Eye Protection : Chemical splash goggles should be worn when handling Anhydrous

Ammonia to protect from liquids or mists. A face shield can be worn

over chemical splash goggles as additional protection. Do not wear contact lenses when handling

Anhydrous Ammonia. A full-face air-purifying respirator (APR) or supplied-air respirator (SAR) should be worn to protect from chemical vapors.

Respiratory : Unless ventilation is adequate to keep concentration below permissible

Protection exposure limit (PEL), wear NIOSH approved ammonia chemical cartridge

or canister full facepiece chin-style respirators with an air-purification factor (APF=50). In emergency or

planned entry into unknown concentrations, use self-contained breathing apparatus (SCBA) or any

supplied- air full facepiece chin-style respirators.

8. Exposure Controls/PersonalProtection



Appearance: Compressed Liquid Gas, clear,

colorless Odor: Sharp, penetrating

Odor Threshold: 5 ppm pH: 11.6 for 1% NH3 solution

Melting Point/Freezing Point: -107.9oF; -78oF Initial Boiling Point/Range: -28oF;-33.4oC

Flash Point: N/A Evaporation Rate (BuAc=1): N/A

Flammability: 16 – 25% in air Lower/Upper Explosive Limit: 25% by Volume/16% by

Volume

Vapor Pressure (mmHg): 110 PSIG at 68oF (20oC)

Vapor Density (Air=1): 0.0549 lb./ft3 at -28oF at 1 atm

Relative Density: 42.57 lbs./cu.ft @ -28oF and

1 atm Solubility in Water: 33.10%

Partition Coefficient: N/A Autoignition Temperature: 650°C; 1204°F

Decomposition Temperature: N/A Viscosity: N/A

% Volatiles: 100% Specific Gravity (Water=1): 0.6189 of liquid at -28oF and 1 atm

Molecular Weight:17.032 VOC: N/A

Reactivity : Reacts violently and explosively with oxidizing gases such as chlorine,

bromine, and other halogens. Reacts explosively with hypochlorites such as bleach. Reacts vigorously

with acids. Highly reactive with reducing agents. Hazardous polymerization will not occur.

Chemical Stability : Stable

Possibility of Hazardous : Avoid contact with oxidizing gases, chlorine, bromine, mineral

hypochlorite, Reactions or iodine, halogens, calcium, and strong acids. Avoid contact with copper,

Polymerizations silver, zinc, and alloys of same. Mercury, silver oxide can form explosive

compounds.

Conditions to Avoid : Avoid all possible sources of ignition. Heat will increase pressurein

the storage tank.

Incompatible Materials : Avoid contact with strong acids, use of metals containing copper or zinc.

Hazardous Decomposition : Combustion will generate oxides of nitrogen. Intense heating of thegas,

Products particularly in contact with hot metallic surfaces, may cause

decomposition of ammonia to hydrogen and nitrogen.

Acute and Chronic Effects : Can cause irritation and burns of the skin and mucous membranes, and

headache, salivation, nausea, and vomiting. Difficult or labored breathing and cough with bloody

mucous discharge. Can cause bronchitis, laryngitis,

9. Physical and Chemical Properties

10. Stabilityand Reactivity

11. Toxicological Information



hemoptysis, and pulmonary edema or pneumonitis. Death may result. Can cause ulceration of the

conjunctiva and cornea, and corneal and lenticular opacities. Damage to the eyes may be

permanent.

Routes of Exposure

Ingestion : Yes

Inhalation : Yes

Skin : Yes

Eyes : Yes

Symptoms related to : Can cause burning of the eyes, conjunctivitis, skin irritation, swelling of

the Physical, Chemical & eyelids and lips, dry red mouth and tongue, burning in the throat, and

Toxicological coughing, and in more severe cases of exposure, difficulty in breathing,

Characteristics signs and symptoms of lung congestion, and, ultimately, death from

respiratory failure due to pulmonary edema may occur.

Numerical Measures of :

Toxicity

Oral LD50 350 mg/kg Rat ATSDR 1991 96 mg/kg Mouse EPA 1989

Inhalation LC50 19,770 ppm F Rat EPA 1989 14,140 ppm M Rat EPA 1989 17,401 ppm Rat ATSDR 1991

Chronic Toxicity : N/A

Carcinogenicity : Product Name: Anhydrous Ammonia

ACGIH IARC EPA NIOSH NTP OSHA

No No No No No No

TARGET ORGANS : N/A

Ecotoxicity : Even at extremely low concentrations aquatic life will be harmed by

liquid ammonia.

Persistence and : N/A Degradability Bioaccumulative

Potential :

Mobility in Soil : When anhydrous ammonia is applied in the soil, ammonia reacts with

organic matter, and it dissolves in water. Anhydrous Ammonia reacts with water to form ammonium.

The initial reactions with water, organic matter and clays limit the mobility of ammonia.

Product/Ingredient Log Pow BCF Potential

- - - -

12. Ecological Information



Disposal of Container : Because of the toxicity of ammonia to aquatic organisms, NEVER dispose of

or allow any ammonia or ammonia contaminated water to flow into any surface water bodies. Surface water

bodies include drainage ditches, storm water and sanitary sewers, wetlands, ponds, lakes and streams.

Diking will contain the liquid and allow it to stabilize. Keep unprotected personnel away from area until it

is free of ammonia. Do not apply water directly to ammonia liquid as this will cause boiling and

splattering.

Soil contaminated with ammonia or aqua ammonia may need to be excavated and properly disposed

of according to local and state regulations. Consult

Federal, State, or Local Authorities for additional proper disposal procedures.

UN# : UN1005

Proper Shipping Name : Anhydrous Ammonia

Hazard Class/Division : 2.2 [Domestic]; 2.3, (8) [International]

Packing Group : N/A Marine Pollutant : Yes

Special Provisions : 13, T50

Emergency Response : 2012 ERG, Guide 125, pages 188-189 Guidebook

Placard Advisory :

SARA 302 Extremely : This product contains the following Extremely Hazardous

Hazardous Substances Substance(s) (EHS) under Section 302 of EPCRA, subject

to (EHS) the reporting requirements of Sections 311 and 312 (Tier

I/Tier II reporting) at quantities greater than or equal to 500 pounds or in excess of the

substance’s EHS Threshold Planning Quantity (TPQ), whichever is lower. A Safety Data

Sheet (SDS) must be provided to the SERC, LEPC, and local fire department. Ammonia, CAS #7664-41-7 Sec. 302 EHS TPQ = 500 lbs. (226.8 kg.)

SARA 304 Extremely : EPCRA Section 304 requires a facility to notify the SERC

and Hazardous Substances LEPC in the event of a release an EHS at or exceeding the

(EHS) Release Notification substance’s RQ under Section 302 of EPCRA, or its

CERCLA RQ, if applicable, whichever is lower. This product contains the following

Extremely Hazardous Substance(s) (EHS) subject to the reporting requirements of Section

304.

Ammonia, CAS #7664-41-7 Sec. 304 RQ = 100 lbs. (45.4 kg.)

13. Disposal Considerations

15. RegulatoryInformation

14. TransportInformation



aximum use

SARA 311/312 Hazards :

SARA 311/312 Hazards

Acute Chronic Flammability Pressure Reactivity

Yes No Yes Yes No

SARA 313 Reportable : This product contains the following chemical(s) subject to

Chemicals annual emissions, transfers, and/or waste management

reporting under the Community-Right-to-Know provisions of EPCRA Section 313, also

known as the Toxic Release Inventory (TRI) Report or Form R: Ammonia, CAS #7664-41-7

CERCLA Hazardous : This product contains the following CERCLA hazardous

Substances substance(s) subject to the National Response Center

(NRC) reporting requirements if released to the environment in quantities greater than or

equal to the substance’s CERCLA Reportable Quantity (RQ).

Ammonia, CAS #7664-41-7 CERCLA RQ = 100 lbs. (45.4 kg.)

Clean Air Act (CAA) Section : This product contains the following air pollutant(s) under the

112(r) Air Pollutants U.S. Clean Air Act (CAA), Section 112(r) [40 CFR 61],

which, if accidentally released to the atmosphere in quantities at or above the CAA 112(r)

Threshold Quantity (TQ), is reportable. Ammonia, CAS #7664-41-7 CAA 112(r) TQ = 10,000 lbs. (4436 kg.)

California Prop 65 : This product does not contain any chemicals known to

the Chemicals state of California to cause cancer, birth defects or other

reproductive harm.

Hazard Label Warning : This product requires the following hazard label warning: Domestic: Non-Flammable Gas (Class 2.2)

International: Poisonous Gas Inhalation (Class 2.3); Corrosive (Class 8)

ACRONYMS:

CAS # – Chemical Abstract Services Registry

Number CFR – Code of Federal Regulations

CERCLA – Comprehensive Environmental Response, Compensation, and Liability

Act EPCRA – Emergency Planning and Community Right-to-Know Act

LEPC – Local Emergency Planning Committee

SERC – State Emergency Response

Commission

M level for Anhydrous Ammonia under NSF/ANSI Standard 60

Maximum Use 5 mg/l



Revision date : 05/14/2015 Supersedes : 05/20/2014

First Issue : 12/01/1985

Chemical Family/Type : Hydride, (Alkaline Gas), Inorganic Base

Section(s) changed : MSDS to First Issue SDSConversion since last revision

IMPORTANT! Read this SDS before use or disposal of this product. Pass along the information to

employees and any other persons who could be exposed to the product to be sure that they are

aware of the information before use or other exposure. This SDS has been prepared in accordance

with the Globally Harmonized System of Chemical and Labeling of Chemicals (GHS) Fifth Edition

and the OSHA Hazard Communication Standard [29 CFR 1910.1200]. The SDS information is based

on sources believed to be reliable. Available data, safety standards, and government regulations

are subject to change and the conditions of handling and use, or misuse are beyond our control;

Hill Brothers Chemical Company makes no warranty, either expressed or implied, with respect

to the completeness or continuing accuracy of the information contained herein and disclaims all

liability for reliance thereon. Additional information may be necessary or helpful for specific

conditions and circumstances of use. It is the user's responsibility to determine the suitability of

this product and to evaluate risks and exercise appropriate precautions for protection of employees

and others prior to use.

16. OtherInformation



CIRO SCREEN 1

RECIPROCATING COMPRESSOR – NH3 NORMAL CONDITIONS

SUCTION PRESSURE 33 PSIG COMPRESSOR MOTOR AMPS 145 AMPS

DISCHARGE PRESSURE 154 PSIG COMPRESSOR MOTOR VOLTAGE 480 VAC

OIL PRESSURE 45 PSID COMPRESSOR LOADING 100%


TEMP

72°F

DISCHARGE TEMP 213°F CONDENSER LIQUID TEMP 85°F

MOTOR POWER FACTOR 0.82 CONDENSER OUTLET PRESSURE 151 PSIG

NOTES: MOTOR TYPE IS 3 PHASE




COMPRESSOR WATER COOLED

CIRO SCREEN 2






TEMP

72°F


MOTOR POWR FACTOR 0.82 CONDENSER OUTLET PRESSURE 151 PSIG






RECIPROCATING COMPRESSOR – NH3 ABNORMAL CONDITIONS





TEMP

72°F


MOTOR POWR FACTOR 0.82 CONDENSER OUTLET PRESSURE 181 PSIG








CIRO SCREEN 3






TEMP

72°F













TEMP

95°F










CIRO SCREEN 4






TEMP

72°F


MOTOR POWER FACTOR 0.82 CONDENSER OUTLET PRESSURE 151











TEMP

72°F


MOTOR POWER FACTOR 0.82 CONDENSER OUTLET PRESSURE 151






CIRO SCREEN 5






TEMP

72°F










CIRO SCREEN 6

500 HP SCREW COMPRESSOR – NH3 NORMAL CONDITIONS


AMPS

464 AMPS


VOLTAGE

480 VAC


VALVE POSITION

100%


TEMP

75°F




TEMP

156°F

OIL COOLER –

REFRIGERANT OUTLET

TEMP

86°F

MOTOR POWER FACTOR 0.82

NOTES: MOTOR TYPE IS 3 PHASE MOTOR EFFICIENCY IS 92%

CONDENSER TYPE IS EVAPORATIVE THERMO SIPHON OIL COOLING




CIRO SCREEN 7



AMPS

464 AMPS


VOLTAGE

480 VAC


VALVE POSITION

100%


TEMP

75°F




TEMP

156°F

OIL COOLER –

REFRIGERANT OUTLET

TEMP

86°F





500 HP SCREW COMPRESSOR – NH3 ABNORMAL CONDITIONS


AMPS

503 AMPS


VOLTAGE

480 VAC


VALVE POSITION

100%


TEMP

75°F




TEMP

165°F

OIL COOLER –

REFRIGERANT OUTLET

TEMP

85°F







CIRO SCREEN 8



AMPS

464 AMPS


VOLTAGE

480 VAC


VALVE POSITION

100%


TEMP

75°F




TEMP

156°F

OIL COOLER –

REFRIGERANT OUTLET

TEMP

86°F





500 HP SCREW COMPRESSOR – NH3 ABNORMAL CONDITIONS


AMPS

503 AMPS


VOLTAGE

480 VAC


VALVE POSITION

100%


TEMP

75°F




TEMP

165°F

OIL COOLER –

REFRIGERANT OUTLET

TEMP

96°F







CIRO SCREEN 9

TWO -STAGE PACKAGE – NH3 NORMAL CONDITIONS

LOW STAGE COMPRESSOR READINGS

HIGH STAGE COMPRESSOR READINGS

SUCTION PRESSURE 9” HG SUCTION PRESSURE 31 PSIG

DISCHARGE PRESSURE 31 PSIG DISCHARGE PRESSUREP 154 PSIG

OIL PRESSURE 45 PSID OIL PRESSURE 45 PSID SUCTION TEMP -38°F SUCTION TEMP 24° F

DISCHARGE TEMP 135°F DISCHARGE TEMP 156° F

OIL TEMPERATURE 125°F OIL TEMPERATURE 125° F


TEMP

135°F OIL COOLER – OIL INLET TEMP 85° F

OIL COOLER –

REFRIGERANT OUTLET

TEMP

85°F OILCOOLER –

REFRIGERANT

OUTLET TEMP

145° F

BOOSTER COMPRESSOR

MOTOR AMPS

48 AMPS HIGH STAGE COMPRESSOR

MOTOR AMPS 49 AMPS

BOOSTER COMPRESSOR

SLIDE VALVE POSITION

100% HIGH STAGE COMPRESSOR

SLIDE VALVE POSITION 100%

MOTOR POWER FACTOR 0.82 MOTOR POWER FACTOR 0.82

NOTES: THERMO SIPHON OIL COOLING MOTOR EFFICIENCY IS 92%

MOTOR TYPE IS 3 PHASE MOTOR VOLTAGE(S) IS 480 VAC



CIRO SCREEN 10




SUCTION PRESSURE 9” HG SUCTION PRESSURE 31 PS IG

DISCHARGE PRESSURE 31 PSIG DISCHARGE PRESSURE 154 P SIG

OIL PRESSURE 45 PSID OIL PRESSURE 45 PS ID

SUCTION TEMP -38°F SUCTION TEMP 24°F

DISCHARGE TEMP 135°F DISCHARGE TEMP 156°F

OIL TEMPERATURE 125°F OIL TEMPERATURE 125°F


TEMP

135°F OIL COOLER – OIL INLET TEMP 145°F

OIL COOLER –

REFRIGERANT OUTLET

TEMP

85°F OIL COOLER – REFRIGERANT 85°F

OUTLET TEMP

BOOSTER COMPRESSOR

MOTOR AMPS

48 AMPS HIGH STAGE COMPRESSOR 49 AMPS MOTOR AMPS

BOOSTER COMPRESSOR


100% HIGH STAGE COMPRESSOR 100% SLIDE VALVE POSITION




TWO -STAGE PACKAGE – NH3 ABNORMAL CONDITIONS



SUCTION PRESSURE 9” HG SUCTION PRESSURE 31 PS IG

DISCHARGE PRESSURE 31 PSIG DISCHARGE PRESSURE 154 P SIG

OIL PRESSURE 45 PSID OIL PRESSURE 45 PS ID





TEMP


OIL COOLER –

REFRIGERANT OUTLET

TEMP


OUTLET TEMP

BOOSTER COMPRESSOR

MOTOR AMPS


BOOSTER COMPRESSOR








CIRO SCREEN 11


LOW STAGE COMPRESSOR READINGS HIGH STAGE COMPRESSOR READINGS

SUCTION PRESSURE 9” HG SUCTION PRESSURE 31 PSI G

DISCHARGE PRESSURE 31 PSIG DISCHARGE PRESSURE 154 PSIG

OIL PRESSURE 45 PSID OIL PRESSURE 45 PSID





TEMP


OIL COOLER –

REFRIGERANT OUTLET

TEMP


OUTLET TEMP

BOOSTER COMPRESSOR

MOTOR AMPS


BOOSTER COMPRESSOR






TWO- STAGE PACKAGE – NH3 ABNORMAL CONDITIONS


SUCTION PRESSURE 37 PSIG SUCTION PRESSURE 35 PSIG



SUCTION TEMP 68°F SUCTION TEMP 32°F




TEMP

85°F OIL COOLER – OIL INLET 135°F TEMP

OIL COOLER –

REFRIGERANT OUTLET

TEMP

85°F OIL COOLER – 85°F

REFRIGERANT OUTLET

TEMP

BOOSTER COMPRESSOR

MOTOR AMPS


BOOSTER COMPRESSOR








CIRO SCREEN 12

TWO- STAGE PACKAGE – NH3 ABNORMAL CONDITIONS


SUCTION PRESSURE 9” HG SUCTION PRESSURE 31 PSIG







TEMP


OIL COOLER –

REFRIGERANT OUTLET

TEMP


OUTLET TEMP

BOOSTER COMPRESSOR

MOTOR AMPS

48 AMPS HIGH STAGE COMPRESSOR 52 MOTOR AMPS AMPS

BOOSTER COMPRESSOR


100% HIGH STAGE COMPRESSOR SLIDE 100% VALVE POSITION






CIRO SCREEN 13

MEDIUM TEMPERATURE ROOM – NH3 NORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE

33 PSIG AIR LEAVING TEMPERATURE 31°F

COIL SUCTION HEADER

TEMPERATURE

20°F ROOM AIR TEMPERATURE 33°F

LIQUID LEVEL

FEED STATUS

29% SATISFIED

MODE: REFRIGERATING

EVAPORATOR FAN

MOTOR AMPS

7.2 AMPS

COMPRESSOR INLET

PRESSURE

30 PSIG PARAMETERS: ROOM TEMP: 33°F

ROOM HIGH TEMP: 38°F

ROOM LOW TEMP: 32°F

LIQUID LEVEL CALL: 25%

LIQUID LEVEL SATISFIED: 31%

LIQUID HIGH LEVEL: 40%

DEFROST PUMP DOWN: 20 MIN

DEFROST HOT GAS REG: 90 PSIG

FAN DELAY: 2 MIN

COMPRESSOR

DISCHARGE PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

23°F

COMPRESSOR

DISCHARGE TEMP

212°F

NOTES:

- UNIT IS A FLOODED EVAPORATOR WITH A SOLENOID ACTIVATED BACK PRESSURE

REGULATOR FOR EVAPORATOR PRESSURE CONTROL.

- HOT GAS DEFROST METHOD USED.

- LIQUID FEED IS AN ELECTRIC SOLENOID VALVE IN SERIES WITH A HAND EXPANSION

VALVE. - ENGINE ROOM USES MULTIPLE RECIPROCATING COMPRESSORS.



CIRO SCREEN 14 MEDIUM TEMPERATURE ROOM – NH3 NORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


LIQUID LEVEL

FEED STATUS

29% SATISFIED

MODE: REFRIGERATING

EVAPORATOR FAN

MOTOR AMPS

7.2 AMPS

COMPRESSOR INLET

PRESSURE









FAN DELAY: 2 MIN

COMPRESSOR

DISCHARGE PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

23°F

COMPRESSOR

DISCHARGE TEMP

212°F

MEDIUM TEMPERATURE ROOM – NH3 ABNORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


LIQUID LEVEL

FEED STATUS

0%

CALLING

MODE: REFRIGERATING

EVAPORATOR FAN

MOTOR AMPS

7.2 AMPS

COMPRESSOR INLET

PRESSURE









FAN DELAY: 2 MIN

COMPRESSOR

DISCHARGE PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

38°F

COMPRESSOR

DISCHARGE TEMP

260°F

NOTES:

- UNIT IS A FLOODED EVAPORATOR WITH A SOLENOID ACTIVATED BACK PRESSURE

REGULATOR FOR EVAPORATOR PRESSURE CONTROL.



VALVE.

- ENGINE ROOM USES MULTIPLE RECIPROCATING COMPRESSORS.



CIRO SCREEN 15

MEDIUM TEMPERATURE ROOM – NH3 NORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE

33 PSIG COMPRESSOR DISCHARGE TEMP 212°F

COIL SUCTION HEADER

TEMPERATURE

20°F AIR LEAVING TEMPERATURE 31°F

LIQUID LEVEL

FEED STATUS

29% SATISFIED

ROOM AIR TEMPERATURE 33°F

EVAPORATOR FAN MOTOR

AMPS

7.2 AMPS MODE: REFRIGERATING

COMPRESSOR INLET

PRESSURE

30 PSIG PARAMETERS:

ROOM TEMP: 33°F LIQUID HIGH LEVEL: 40%

ROOM HIGH TEMP: 38°F DEFROST PUMP DOWN: 20 MIN

ROOM LOW TEMP: 32°F DEFROST HOT GAS REG: 90 PSIG

LIQUID LEVEL CALL: 25% FAN DELAY: 2 MIN


COMPRESSOR DISCHARGE

PRESSURE

154 PSIG

COMPRESSOR INLET TEMP 23°F

MEDIUM TEMPERATURE ROOM – NH3 ABNORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE

90 PSIG COMPRESSOR DISCHARGE TEMP 224°F

COIL SUCTION HEADER

TEMPERATURE

60°F AIR LEAVING TEMPERATURE 34°F

LIQUID LEVEL

FEED STATUS

95% HIGH

ROOM AIR TEMPERATURE 33°F


AMPS

0.0 AMPS MODE: DEFROST – HG “ON”

COMPRESSOR INLET

PRESSURE

30 PSIG PARAMETERS:

ROOM TEMP: 33°F LIQUID HIGH LEVEL: 40%

ROOM HIGH TEMP: 38°F DEFROST PUMP DOWN: 20 MIN

ROOM LOW TEMP: 32°F DEFROST HOT GAS REG: 90 PSIG

LIQUID LEVEL CALL: 25% FAN DELAY: 2 MIN



PRESSURE

154 PSIG

COMPRESSOR INLET TEMP 65°F

NOTES:

- UNIT IS A FLOODED EVAPORATOR WITH A SOLENOID ACTIVATED BACK PRESSURE REGULATOR

FOR EVAPORATOR PRESSURE CONTROL.


- EVAPORATOR IS ONE OF SEVERAL IN THE SYSTEM.

- LIQUID FEED IS AN ELECTRIC SOLENOID VALVE IN SERIES WITH A HAND EXPANSION VALVE. - ENGINE ROOM USES MULTIPLE RECIPROCATING COMPRESSORS.



CIRO SCREEN 16 LOW TEMPERATURE ROOM – NH3 NORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE

8” HG AIR LEAVING TEMPERATURE -28°F

COIL SUCTION HEADER

TEMPERATURE

-39°F ROOM AIR TEMPERATURE -25°F

RECIRCULATOR LIQUID LEVEL

FEED STATUS

29% SATISFIED

MODE: REFRIGERATING


AMPS

13.6 AMPS

COMPRESSOR INLET PRESSURE 12” HG PARAMETERS: ROOM TEMP: -25°F

ROOM HIGH TEMP: -20°F

ROOM LOW TEMP: -30°F






FAN DELAY: 2 MIN


PRESSURE

154 PSIG

COMPRESSOR INLET TEMP -40°F

COMPRESSOR DISCHARGE TEMP 153°F

NOTES:

- ROOM IS A SMALL BOX WITH A SINGLE UNIT.

- UNIT IS A PUMPED LIQUID EVAPORATOR USING AXIAL PROPELLER FANS AND A GAS

POWERED SUCTION OUTLET CONTROL VALVE.



VALVE.

- ENGINE ROOM USES MULTIPLE SCREW COMPRESSORS ARRANGED AS A TWO STAGE

SYSTEM



CIRO SCREEN 17 LOW TEMPERATURE ROOM – NH3 NORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


RECIRCULATOR LIQUID

LEVEL FEED STATUS

29% SATISFIED

MODE: REFRIGERATING

EVAPORATOR FAN

MOTOR AMPS

13.6 AMPS

COMPRESSOR INLET

PRESSURE

12” HG PARAMETERS:

ROOM TEMP:

ROOM HIGH TEMP:

ROOM LOW TEMP:

LIQUID LEVEL CALL:

LIQUID LEVEL SATISFIED:

LIQUID HIGH LEVEL:

DEFROST PUMP DOWN: DEFROST HOT GAS REG:

FAN DELAY:

-25°F

-20°F

-30°F 25% 31%

40%

20 MIN

90 PSIG

2 MIN


PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

-40°F


TEMP

153°F

LOW TEMPERATURE ROOM – NH3 ABNORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


RECIRCULATOR LIQUID

LEVEL FEED STATUS

26% SATISFIED

MODE: REFRIGERATING

EVAPORATOR FAN

MOTOR AMPS

14.9 AMPS

COMPRESSOR INLET

PRESSURE

12” HG PARAMETERS:

ROOM TEMP:

ROOM HIGH TEMP:

ROOM LOW TEMP:

LIQUID LEVEL CALL:

LIQUID LEVEL SATISFIED:

LIQUID HIGH LEVEL:

DEFROST PUMP DOWN:

DEFROST HOT GAS REG: FAN DELAY:

-25°F

-20°F

-30°F 25% 31%

40%

20 MIN

90 PSIG

2 MIN


PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

-46°F


TEMP

151°F

NOTES:

- ROOM IS A SMALL BOX WITH A SINGLE UNIT.

- UNIT IS A PUMPED LIQUID EVAPORATOR USING AXIAL PROPELLER FANS AND A GAS

POWERED SUCTION OUTLET CONTROL VALVE.



VALVE.

- ENGINE ROOM USES MULTIPLE SCREW COMPRESSORS ARRANGED AS A TWO STAGE

SYSTEM



CIRO SCREEN 18 LOW SIDE VESSELS PANEL – NH3 NORMAL CONDITIONS

LOW STAGE

RECIRCULATOR READINGS

GS

SUCTION PRESSURE 9” HG HIGH STAGE SUCTION PRESSURE 31 PSIG

SUCTION TEMPERATURE -38°F INTERCOOLER SUCTION 156°F INLET TEMPERATURE

VESSEL LIQUID LEVEL

FEED STATUS

31% SATISFIED

INTERCOOLER SUCTION 24° OUTLET TEMPERATURE

F

TOTAL PUMP AMPERAGE 15.7 AMPS

INTERCOOLER LIQUID LEVEL 25% LIQUID FEED STATUS SATISFIED

PUMP DISCHARGE

HEADER PRESSURE

20 PSIG PARAMETERS: LOW STAGE RECIRCULATOR LIQUID CALL: 25%

LOW STAGE RECIRCULATOR LIQUID SATISFIED: 30% LOW

STAGE RECIRCULATOR LIQUID HIGH LEVEL: 40% LOW

STAGE RECIRCULATOR LIQUID LOW LEVEL: 15%

INTERCOOLER LIQUID LEVEL CALL: 23%

INTERCOOLER LIQUID LEVEL SATISFIED: 27%

INTERCOOLER LIQUID HIGH LEVEL: 34%

INTERCOOLER LIQUID LOW LEVEL: 18%

INTERCOOLER SUCTION OUTLET HIGH TEMP: 40°F

PUMP MOTOR AMPS: LOW 8.2 HIGH: 17.2 MINIMUM PUMP DISCHARGE PRESSURE DIFFERENTIAL: 22 PSID




LOW STAGE


GS



VESSEL LIQUID LEVEL

FEED STATUS

31% SATISFIED


F



PUMP HEADER

PRESSURE







INTERCOOLER LIQUID HIGH LEVEL: 34% INTERCOOLER LIQUID LOW LEVEL: 18%



LOW SIDE VESSELS PANEL – NH3 ABNORMAL CONDITIONS

LOW STAGE


GS



VESSEL LIQUID LEVEL

FEED STATUS

4% FILLING


F

TOTAL PUMP AMPERAGE 0 AMPS INTERCOOLER LIQUID LEVEL 5% LIQUID FEED STATUS FILLING

PUMP HEADER

PRESSURE

9” HG PARAMETERS: LOW STAGE RECIRCULATOR LIQUID CALL: 25%












LOW STAGE


GS



VESSEL LIQUID LEVEL

FEED STATUS

31% SATISFIED


F



PUMP HEADER

PRESSURE










LOW SIDE VESSELS PANEL – NH3 ABNORMAL CONDITIONS

LOW STAGE


GS


SUCTION TEMPERATURE -38°F INTERCOOLER SUCTION 75° INLET TEMPERATURE

F

VESSEL LIQUID LEVEL

FEED STATUS

28% SATISFIED


F

TOTAL PUMP AMPERAGE 0.0 AMPS INTERCOOLER LIQUID LEVEL 45% LIQUID FEED STATUS HIGH

PUMP HEADER

PRESSURE

0.0 PSIG PARAMETERS: LOW STAGE RECIRCULATOR LIQUID CALL: 25%











CIRO SCREEN 21

DIRECT EXPANSION DOCK UNITS – NH3 NORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


EVAPORATOR FAN

MOTOR AMPS


COMPRESSOR INLET

PRESSURE

28 PSIG PARAMETERS:

ROOM TEMP: 34°F





FAN DELAY: 2 MIN

COMPRESSOR

DISCHARGE PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

34°F

COMPRESSOR

DISCHARGE TEMP

235°F

NOTES:

- UNIT IS A DIRECT EXPANSION EVAPORATOR WITH A SOLENOID ACTIVATED BACK

PRESSURE REGULATOR FOR EVAPORATOR PRESSURE CONTROL.

- HOT GAS DEFROST METHOD USED WHICH IS SUPPLIED FROM A COMMON

CONDENSER.

- LIQUID FEED IS AN ELECTRIC SOLENOID VALVE IN SERIES WITH A THERMOSTATIC

EXPANSION VALVE. - ENGINE ROOM USES A SINGLE RECIPROCATING COMPRESSOR FOR THIS LOAD.



CIRO SCREEN 22


COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


EVAPORATOR FAN

MOTOR AMPS


COMPRESSOR INLET

PRESSURE





DEFROST HOT GAS REG: 90 PSIG FAN

DELAY: 2 MIN

COMPRESSOR

DISCHARGE PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

34°F

COMPRESSOR

DISCHARGE TEMP

235°F

DIRECT EXPANSION DOCK UNITS – NH3 ABNORMAL CONDITIONS

COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


EVAPORATOR FAN

MOTOR AMPS


COMPRESSOR INLET

PRESSURE






DELAY: 2 MIN

COMPRESSOR

DISCHARGE PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

44°F

COMPRESSOR

DISCHARGE TEMP

280°F

NOTES:




CONDENSER.





CIRO SCREEN 23


COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


EVAPORATOR FAN

MOTOR AMPS


COMPRESSOR INLET

PRESSURE






FAN DELAY: 2 MIN


PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

34°F


TEMP

235°F


COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


EVAPORATOR FAN

MOTOR AMPS


COMPRESSOR INLET

PRESSURE






DELAY: 2 MIN


PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

17°F


TEMP

140°F

NOTES:



- HOT GAS DEFROST METHOD USED WHICH IS SUPPLIED FROM A COMMON CONDENSER.





CIRO SCREEN 24


COIL SUCTION HEADER

PRESSURE


COIL SUCTION HEADER

TEMPERATURE


EVAPORATOR FAN

MOTOR AMPS


COMPRESSOR INLET

PRESSURE

29 PSIG PARAMETERS:

ROOM TEMP: 34°F





FAN DELAY: 2 MIN

COMPRESSOR

DISCHARGE PRESSURE

154 PSIG

COMPRESSOR INLET

TEMP

17°F

COMPRESSOR

DISCHARGE TEMP

140°F

NOTES:




CONDENSER.





Refrigerant R717 (Ammonia)

Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

ft3/lb.

Specific

Volume

Vapor

ft3/lb.

Density

Liquid

lbs./ ft3

Density

Vapor

lbs./ ft3

-65 20.4“ hg 4.69 0.0227 52.5619 44.15 0.0190

-64 20.0“ hg 4.84 0.0227 50.8815 44.11 0.0197

-63 19.7“ hg 5.02 0.0227 49.3229 44.07 0.0203

-62 19.4“ hg 5.18 0.0227 47.7644 44.03 0.0209

-61 19.0“ hg 5.37 0.0227 46.3175 43.99 0.0216

-60 18.6“ hg 5.53 0.0228 44.8709 43.95 0.0223

-59 18.2“ hg 5.72 0.0228 43.5023 43.90 0.0230

-58 17.8“ hg 5.91 0.0228 42.1830 43.86 0.0237

-57 17.4“ hg 6.11 0.0228 40.9108 43.82 0.0244

-56 17.0“ hg 6.31 0.0228 39.6840 43.78 0.0252

-55 16.6“ hg 6.52 0.0229 38.5006 43.74 0.0260

-54 16.2“ hg 6.73 0.0229 37.3589 43.69 0.0268

-53 15.7“ hg 6.95 0.0229 36.2572 43.65 0.0276

-52 15.3“ hg 7.18 0.0229 35.1939 43.61 0.0284

-51 14.8“ hg 7.41 0.0230 34.1675 43.57 0.0293

-50 14.3“ hg 7.64 0.0230 33.1765 43.53 0.0301

-49 13.8“ hg 7.89 0.0230 32.2196 43.48 0.0310

-48 13.3“ hg 8.14 0.0230 31.2953 43.44 0.0320

-47 12.8“ hg 8.39 0.0230 30.4025 43.40 0.0329

-46 12.2“ hg 8.66 0.0230 29.5398 43.46 0.0339

-45 11.7“ hg 8.92 0.0231 28.7062 43.32 0.0348

-44 11.1“ hg 9.20 0.0231 27.9004 43.27 0.0358

-43 10.6“ hg 9.48 0.0231 27.1216 43.23 0.0369

-42 10.0“ hg 9.77 0.0232 26.3685 43.19 0.0379

-41 9.3“ hg 10.07 0.0232 25.6402 43.15 0.0390

-40 8.7“ hg 10.38 0.0232 24.9359 43.10 0.0401

-39 8.1“ hg 10.69 0.0232 24.2545 43.06 0.0412

-38 7.4“ hg 11.01 0.0232 23.5953 43.02 0.0424

-37 6.8“ hg 11.34 0.0233 22.9574 42.97 0.0436

-36 6.1“ hg 11.67 0.0233 22.3400 42.93 0.0448

-35 5.4“ hg 12.01 0.0233 21.7423 42.89 0.0460

-34 4.7“ hg 12.37 0.0233 21.1637 42.85 0.0473

-33 3.9“ hg 12.73 0.0234 20.6035 42.80 0.0485

-32 3.2“ hg 13.10 0.0234 20.0609 42.76 0.0498




Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

ft3/lb.

Specific

Volume

Vapor

ft3/lb.

Density

Liquid

lbs./ ft3

Density

Vapor

lbs./ ft3

-31 2.4“ hg 13.47 0.0234 19.5353 42.72 0.0512

-30 1.6“ hg 13.86 0.0234 19.0262 42.67 0.0526

-29 .8“ hg 14.25 0.0235 18.5328 42.63 0.0540

-28 0 psig 14.66 0.0235 18.0548 42.59 0.0554

-27 0.37 15.07 0.0235 17.5914 42.55 0.0568

-26 0.79 15.49 0.0235 17.1422 42.50 0.0583

-25 1.23 15.93 0.0236 16.7068 42.46 0.0599

-24 1.67 16.37 0.0236 16.2845 42.42 0.0614

-23 2.12 16.82 0.0236 15.8750 42.37 0.0630

-22 2.58 17.28 0.0236 15.4778 42.33 0.0646

-21 3.05 17.75 0.0236 15.0925 42.29 0.0663

-20 3.54 18.24 0.0237 14.7187 42.24 0.0679

-19 4.03 18.73 0.0237 14.3559 42.20 0.0697

-18 4.53 19.23 0.0237 14.0038 42.16 0.0714

-17 5.05 19.75 0.0237 13.6621 42.11 0.0732

-16 5.57 20.27 0.0238 13.3303 42.07 0.0750



Refrigerant R717 (Ammonia) Temp in

Degrees

Fahrenheit

Gauge

Pressure

Absolute

Pressure

Specific

Volume

liquid

Specific

Volume

Vapor

Density

Liquid

Density

Vapor

(°f) psig * psia ft3/lb. ft3/lb. lbs./ ft3 lbs./ ft3

-15 6.11 20.81 0.0238 13.0082 42.02 0.0769

-14 6.66 21.36 0.0238 12.6954 41.98 0.0788

-13 7.22 21.92 0.0238 12.3917 41.94 0.0807

-12 7.79 22.49 0.0239 12.0966 41.89 0.0827

-11 8.37 23.07 0.0239 11.8100 41.85 0.0847

-10 8.96 23.66 0.0239 11.5315 41.81 0.0867

-9 9.57 24.27 0.0239 11.2608 41.76 0.0888

-8 10.19 24.89 0.0240 10.9978 41.72 0.0909

-7 10.82 25.52 0.0240 10.7422 41.67 0.0931

-6 11.47 26.17 0.0240 10.4937 41.63 0.0953

-5 12.13 26.83 0.0240 10.2521 41.59 0.0975

-4 12.80 27.50 0.0241 10.0172 41.54 0.0998

-3 13.48 28.18 0.0241 9.7887 41.50 0.1022

-2 14.18 28.88 0.0241 9.5665 41.45 0.1045

-1 14.89 29.59 0.0241 9.3503 41.41 0.1069

0 15.62 30.32 0.0242 9.1401 41.36 0.1094

1 16.36 31.06 0.0242 8.9355 41.32 0.1119

2 17.11 31.81 0.0242 8.7364 41.27 0.1145

3 17.88 32.58 0.0243 8.5426 41.23 0.1171

4 18.66 33.36 0.0243 8.3540 41.19 0.1197

5 19.46 34.16 0.0243 8.1704 41.14 0.1224

6 20.28 34.98 0.0243 7.9917 41.10 0.1251

7 21.10 35.80 0.0244 7.8177 41.05 0.1279

8 21.95 36.65 0.0244 7.6482 41.01 0.1307

9 22.81 37.51 0.0244 7.4831 40.96 0.1336

10 23.68 38.38 0.0244 7.3224 40.92 0.1366




Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

ft3/lb.

Specific

Volume

Vapor

ft3/lb.

Density

Liquid

lbs./ ft3

Density

Vapor

lbs./ ft3

11 24.58 39.28 0.0245 7.1657 40.87 0.1396

12 25.48 40.18 0.0245 7.0132 40.82 0.1426

13 26.41 41.11 0.0245 6.8645 40.78 0.1457

14 27.35 42.05 0.0246 6.7196 40.73 0.1488

15 28.31 43.01 0.0246 6.5784 40.69 0.1520

16 29.28 43.98 0.0246 6.4408 40.64 0.1553

17 30.28 44.98 0.0246 6.3066 40.60 0.1586

18 31.29 45.99 0.0247 6.1758 40.55 0.1619

19 32.32 47.02 0.0247 6.0483 40.51 0.1653

20 33.36 48.06 0.0247 5.9240 40.46 0.1688

21 34.43 49.13 0.0247 5.8027 40.41 0.1723

22 35.51 50.21 0.0248 5.6844 40.37 0.1759

23 36.61 51.31 0.0248 5.5690 40.32 0.1796

24 37.73 52.43 0.0248 5.4564 40.27 0.1833

25 38.87 53.57 0.0249 5.3466 40.23 0.1870

26 40.03 54.73 0.0249 5.2395 40.18 0.1909

27 41.21 55.91 0.0249 5.1349 40.14 0.1947

28 42.41 57.11 0.0249 5.0328 40.09 0.1987

29 43.62 58.32 0.0250 4.9332 40.04 0.2027

30 44.86 59.56 0.0250 4.8360 40.00 0.2068

31 46.12 60.82 0.0250 4.7410 39.95 0.2109

32 47.40 62.10 0.0251 4.6483 39.90 0.2151

33 48.70 63.40 0.0251 4.5678 39.85 0.2189

34 50.02 64.72 0.0251 4.4695 39.81 0.2237

35 51.37 66.07 0.0252 4.3831 39.76 0.2281




Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

ft3/lb.

Specific

Volume

Vapor

ft3/lb.

Density

Liquid

lbs./ ft3

Density

Vapor

lbs./ ft3

36 52.73 67.43 0.0252 4.2988 39.71 0.2326

37 54.12 68.82 0.0252 4.2165 39.67 0.2372

38 55.53 70.23 0.0252 4.1360 39.62 0.2418

39 56.96 71.66 0.0253 4.0574 39.57 0.2465

40 58.41 73.11 0.0253 3.9806 39.52 0.2512

41 59.89 74.59 0.0253 3.9055 39.47 0.2560

42 61.39 76.09 0.0254 3.8321 39.43 0.2610

43 62.91 77.61 0.0254 3.7604 39.38 0.2659

44 64.46 79.16 0.0254 3.6903 39.33 0.2710

45 67.03 81.73 0.0255 3.6218 39.28 0.2761

46 67.63 82.33 0.0255 3.5548 39.23 0.2813

47 69.25 83.95 0.0255 3.4893 39.18 0.2866

48 70.89 85.59 0.0255 3.4253 39.14 0.2919

49 72.56 87.26 0.0256 3.3626 39.09 0.2974

50 74.25 88.95 0.0256 3.3014 39.04 0.3029

51 75.97 90.67 0.0256 3.2415 38.99 0.3085

52 77.71 92.41 0.0257 3.1828 38.94 0.3142

53 79.48 94.18 0.0257 3.1255 38.89 0.3199

54 81.28 95.98 0.0257 3.0694 38.84 0.3258

55 83.10 97.80 0.0258 3.0145 38.79 0.3317

56 84.95 99.65 0.0258 2.9608 38.74 0.3377

57 86.83 101.53 0.0258 2.9082 38.69 0.3439

58 88.73 103.43 0.0259 2.8568 38.64 0.3500

59 90.66 105.36 0.0259 2.8064 38.59 0.3563

60 92.62 107.32 0.0259 2.7571 38.54 0.3627



Refrigerant R717 (Ammonia) Temp in

Degrees

Fahrenheit

Gauge

Pressure

Absolute

Pressure

Specific

Volume

liquid

Specific

Volume

Vapor

Density

Liquid

Density

Vapor

(°f) psig * psia ft3/lb. ft3/lb. lbs./ ft3 lbs./ ft3

61 94.60 109.30 0.0260 2.7089 38.49 0.3692

62 96.62 111.32 0.0260 2.6616 38.44 0.3757

63 98.66 113.36 0.0260 2.6154 38.39 0.3824

64 100.73 115.43 0.0261 2.5701 38.34 0.3891

65 102.83 117.53 0.0261 2.5257 38.29 0.3959

66 104.96 119.66 0.0262 2.4823 38.24 0.4029

67 107.12 121.82 0.0262 2.4397 38.19 0.4099

68 109.31 124.01 0.0262 2.3981 38.14 0.4170

69 111.53 126.23 0.0263 2.3572 38.09 0.4242

70 113.78 128.48 0.0263 2.3173 38.04 0.4315

71 116.06 130.76 0.0263 2.2781 37.99 0.4390

72 118.37 133.07 0.0264 2.2397 37.93 0.4465

73 120.71 135.41 0.0264 2.2021 37.88 0.4541

74 123.08 137.78 0.0264 2.1652 37.83 0.4619

75 125.48 140.18 0.0265 2.1291 37.78 0.4697

76 127.92 142.62 0.0265 2.0936 37.73 0.4776

77 130.39 145.09 0.0265 2.0589 37.67 0.4857

78 132.89 147.59 0.0266 2.0249 37.62 0.4939

79 135.42 150.12 0.0266 1.9915 37.57 0.5021

80 137.99 152.69 0.0267 1.9588 37.52 0.5105

81 140.59 155.29 0.0267 1.9268 37.46 0.5190

82 143.22 157.92 0.0267 1.8953 37.41 0.5276

83 145.89 160.59 0.0268 1.8645 37.36 0.5363

84 148.59 163.29 0.0268 1.8342 37.31 0.5452

85 151.33 166.03 0.0268 1.8046 37.25 0.5541




Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

ft3/lb.

Specific

Volume

Vapor

ft3/lb.

Density

Liquid

lbs./ ft3

Density

Vapor

lbs./ ft3

86 154.10 168.80 0.0269 1.7755 37.20 0.5632

87 156.90 171.60 0.0269 1.7470 37.14 0.5724

88 159.75 174.45 0.0270 1.7190 37.09 0.5817

89 162.62 177.32 0.0270 1.6915 37.04 0.5912

90 165.54 180.24 0.0270 1.6646 36.98 0.6007

91 168.48 183.18 0.0271 1.6381 36.93 0.6105

92 171.47 186.17 0.0271 1.6122 36.87 0.6203

93 174.49 189.19 0.0272 1.5867 36.82 0.6302

94 177.55 192.25 0.0272 1.5617 36.77 0.6403

95 180.65 195.35 0.0272 1.5372 36.71 0.6505

96 183.78 198.48 0.0273 1.5131 36.66 0.6609

97 186.95 201.65 0.0273 1.4895 36.60 0.6714

98 190.16 204.86 0.0274 1.4663 36.55 0.6820

99 193.41 208.11 0.0274 1.4436 36.49 0.6927

100 196.70 211.40 0.0274 1.4212 36.43 0.7036

101 200.02 214.72 0.0275 1.3993 36.38 0.7146

102 203.39 218.09 0.0275 1.3777 36.32 0.7258

103 206.80 221.50 0.0276 1.3565 36.27 0.7372

104 210.24 224.94 0.0276 1.3358 36.21 0.7486

105 213.73 228.43 0.0277 1.3153 36.15 0.7603

106 217.25 231.95 0.0277 1.2953 36.10 0.7720

107 220.82 235.52 0.0277 1.2756 36.04 0.7839

108 224.43 239.13 0.0278 1.2563 35.98 0.7960

109 228.08 242.78 0.0278 1.2373 35.93 0.8082

110 231.77 246.47 0.0279 1.2186 35.87 0.8206




Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

ft3/lb.

Specific

Volume

Vapor

ft3/lb.

Density

Liquid

lbs./ ft3

Density

Vapor

lbs./ ft3

111 235.50 250.20 0.0279 1.2003 35.81 0.8331

112 239.28 253.98 0.0280 1.1822 35.75 0.8459

113 243.10 257.80 0.0280 1.1645 35.70 0.8587

114 246.96 261.66 0.0281 1.1471 35.64 0.8718

115 250.87 265.57 0.0281 1.1300 35.58 0.8850

116 255.40 269.52 0.0282 1.1132 35.52 0.8983

117 259.40 273.51 0.0282 1.0967 35.46 0.9118

118 263.50 277.55 0.0282 1.0805 35.41 0.9255

119 267.60 281.63 0.0283 1.0645 35.35 0.9394

120 271.70 285.76 0.0283 1.0488 35.29 0.9535

121 275.90 289.93 0.0284 1.0334 35.23 0.9677

122 280.10 294.15 0.0284 1.0183 35.17 0.9820

123 284.40 298.41 0.0285 1.0033 35.11 0.9967

124 288.70 302.72 0.0285 0.9887 35.05 1.0114

125 293.10 307.08 0.0286 0.9743 34.99 1.0264



SOURCE: INTERNATIONAL INSTITUTE OF AMMONIA REFRIGERATION PROPERTIES BOOK

TABLE 1

Refrigerant HCFC-22 Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

cu.ft./lb.

Specific

Volume

Vapor

cu.ft./lb.

Density

Liquid

lbs./cu.ft.

Density

Vapor

lbs./cu.ft.

-65 14.4“ hg 7.6 0.011053 6.29 90.47 0.15910

-64 13.9“ hg 7.9 0.011065 6.11 90.38 0.16355

-63 13.5“ hg 8.1 0.011077 5.95 90.28 0.16809

-62 13.0“ hg 8.3 0.011089 5.79 90.18 0.17274

-61 12.5“ hg 8.6 0.011101 5.63 90.08 0.17749

-60 12.0“ hg 8.8 0.011111 5.48 90.00 0.18233

-59 11.4“ hg 9.1 0.011125 5.34 89.89 0.18729

-58 10.9“ hg 9.4 0.011137 5.20 89.79 0.19235

-57 10.4“ hg 9.6 0.011149 5.06 89.69 0.19752

-56 9.8“ hg 9.9 0.011161 5.06 89.60 0.19752

-55 9.2“ hg 10.2 0.011174 4.80 89.49 0.20818

-54 8.6“ hg 10.5 0.011186 4.68 89.40 0.21368

-53 8.0“ hg 10.8 0.011198 4.56 89.30 0.21929

-52 7.4“ hg 11.1 0.011211 4.44 89.20 0.22502

-51 6.8“ hg 11.4 0.011223 4.33 89.10 0.23087

-50 6.2“ hg 11.7 0.011235 4.22 89.01 0.23683

-49 5.5“ hg 12.0 0.011248 4.12 88.90 0.24292

-48 4.8“ hg 12.3 0.011261 4.01 88.80 0.24913

-47 4.1“ hg 12.7 0.011273 3.91 88.71 0.25546

-46 3.4“ hg 13.0 0.011286 3.82 88.61 0.26192

-45 2.7“ hg 13.4 0.011298 3.72 88.51 0.26851

-46 2.0“ hg 13.7 0.011311 3.63 88.41 0.27523

-44 1.3“ hg 14.1 0.011324 3.55 88.31 0.28207

-43 0.5“ hg 14.5 0.011337 3.46 88.21 0.28905

-42 0.1 psig 14.8 0.011350 3.38 88.11 0.29617

-41 0.5 15.2 0.011363 3.30 88.00 0.30342

-39 0.9 15.6 0.111376 3.22 8.98 0.31082

-38 1.3 16.0 0.011389 3.14 87.80 0.31835

-37 1.7 16.4 0.011402 3.07 87.70 0.32602

-36 2.2 16.9 0.011415 3.00 87.60 0.33384



Refrigerant HCFC-22

Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

cu.ft./lb.

Specific

Volume

Vapor

cu.ft./lb.

Density

Liquid

lbs./cu.ft.

Density

Vapor

lbs./cu.ft.

-35 2.5 17.2 0.011428 2.93 87.50 0.34181

-34 3.0 17.7 0.011442 2.86 87.40 0.34992

-33 3.5 18.2 0.011455 2.79 87.30 0.35818

-32 3.7 18.4 0.011469 2.73 87.19 0.36660

-31 4.4 19.1 0.011482 2.67 87.09 0.37517

-30 4.9 19.6 0.011495 2.60 86.99 0.38389

-29 5.4 20.1 0.011509 2.55 86.89 0.39278

-28 5.9 20.6 0.011523 2.49 86.78 0.40182

-27 6.5 21.2 0.011536 2.43 86.69 0.41103

-26 6.9 21.6 0.011550 2.38 86.58 0.42040

-25 7.4 22.1 0.011564 2.33 86.48 0.42993

-24 7.9 22.6 0.011578 2.27 86.37 0.43964

-23 8.5 23.2 0.011592 2.22 86.27 0.44951

-22 9.0 23.7 0.011606 2.18 86.16 0.45956

-21 9.6 24.3 0.011620 2.13 86.06 0.46978

-20 10.1 24.8 0.011634 2.08 85.95 0.48018

-19 10.7 25.4 0.011548 2.04 86.59 0.49075

-18 11.3 26.0 0.011662 1.99 85.75 0.50151

-17 11.9 26.6 0.011677 1.95 85.64 0.51245

-16 12.5 27.2 0.011691 1.91 85.54 0.52358

-15 13.2 27.9 0.011705 1.87 85.43 0.53489

-14 13.8 28.5 0.011720 1.83 85.32 0.54640

-13 14.5 29.2 0.011734 1.79 85.22 0.55810

-12 15.1 29.8 0.011749 1.75 85.11 0.56999

-11 15.8 30.5 0.011764 1.72 85.01 0.58207

-10 16.5 31.2 0.011778 1.68 84.90 0.59436

-9 17.5 32.2 0.011793 1.65 84.80 0.60685

-8 17.9 32.6 0.011808 1.61 84.69 0.61954

-7 18.6 33.3 0.011823 1.58 84.58 0.63244

-6 19.3 34.0 0.011838 1.55 84.47 0.64555

-5 20.1 34.8 0.011853 1.52 84.37 0.65887

-4 20.8 35.5 0.011868 1.49 84.26 0.67240

-3 21.6 36.3 0.011884 1.46 84.15 0.68615

-2 22.4 37.1 0.011899 1.43 84.04 0.70012

-1 23.2 37.9 0.011914 1.40 83.93 0.71431

0 24.0 38.7 0.011930 1.37 83.82 0.72878




Degrees

Fahrenheit

Gauge

Pressure

Absolute

Pressure

Specific

Volume

liquid

Specific

Volume

Vapor

Density

Liquid

Density

Vapor

(°f) psig * psia cu.ft./lb. cu.ft./lb. lbs./cu.ft. lbs./cu.ft.

1 24.8 39.5 0.011945 1.35 83.72 0.74336

2 25.6 40.3 0.011961 1.32 83.61 0.75822

3 26.5 41.2 0.011976 1.29 83.50 0.77332

4 27.3 42.0 0.011992 1.27 83.39 0.78865

5 28.2 42.9 0.012008 1.24 83.28 0.80422

6 29.1 43.8 0.012024 1.22 83.17 0.82003

7 30.0 44.7 0.012040 1.20 83.06 0.83608

8 30.9 45.6 0.012056 1.17 82.95 0.85237

9 31.8 46.5 0.012072 1.15 82.84 0.86892

10 32.8 47.5 0.012088 1.13 82.73 0.88571

11 33.7 48.4 0.012105 1.11 82.61 0.90275

12 34.7 49.4 0.012121 1.09 82.50 0.92005

13 35.7 50.4 0.012138 1.07 82.39 0.93761

14 36.7 51.4 0.012154 1.05 82.28 0.95544

15 37.7 52.4 0.012171 1.03 82.16 0.97352

16 38.7 53.4 0.012188 1.01 82.05 0.99188

17 39.8 54.5 0.012204 0.990 81.94 1.0105

18 40.9 55.6 0.012221 0.971 81.83 1.0294

19 41.9 56.6 0.112238 0.954 81.91 1.0486

20 43.0 57.7 0.012255 0.936 81.60 1.0680

21 44.1 58.8 0.012290 0.910 81.37 1.0989

22 45.3 60.0 0.012290 0.903 81.37 1.1078

23 46.4 61.1 0.012307 0.886 81.25 1.1281

24 47.6 62.3 0.012325 0.871 81.14 1.1487

25 48.8 63.5 0.012342 0.855 81.02 1.1696

26 49.9 64.6 0.012360 0.840 80.91 1.1908

27 51.2 65.9 0.011238 0.825 88.99 1.2123

28 52.4 67.1 0.012395 0.810 80.68 1.2341

29 53.6 68.3 0.012413 0.796 80.56 1.2562

30 54.9 69.6 0.012431 0.782 80.44 1.2786

31 56.2 70.9 0.012450 0.768 80.32 1.3014

32 57.5 72.2 0.012468 0.755 80.21 1.3244

33 58.8 73.5 0.012486 0.742 80.09 1.3478

34 60.1 74.8 0.012505 0.729 79.97 1.3715

35 61.5 76.2 0.012523 0.717 79.85 1.3956



Refrigerant HCFC-22

Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

cu.ft./lb.

Specific

Volume

Vapor

cu.ft./lb.

Density

Liquid

lbs./cu.ft.

Density

Vapor

lbs./cu.ft.

36 62.8 77.5 0.012542 0.704 79.73 1.4199

37 64.2 78.9 0.012561 0.692 79.61 1.4447

38 65.6 80.3 0.012579 0.668 79.50 1.4967

39 67.1 81.8 0.012598 0.669 79.38 1.4951

40 68.5 83.2 0.012618 0.665 79.25 1.5028

41 70.0 84.7 0.012637 0.647 79.13 1.5469

42 71.5 86.2 0.012656 0.636 79.01 1.5734

43 73.0 87.7 0.012676 0.625 78.89 1.6002

44 74.5 89.2 0.012695 0.615 78.77 1.6274

45 76.0 90.7 0.012715 0.604 78.65 1.6549

46 77.6 92.3 0.012735 0.594 78.52 1.6829

47 79.2 93.9 0.012755 0.584 78.40 1.7112

48 80.8 95.5 0.012775 0.575 78.28 1.7398

49 82.4 97.1 0.012795 0.565 78.16 1.7689

50 84.0 98.7 0.012815 0.556 78.03 1.7998

51 85.7 100.4 0.012836 0.547 77.91 1.8282

52 87.4 102.1 0.012856 0.538 77.78 1.8585

53 89.1 103.8 0.012877 0.529 77.66 1.8891

54 90.8 105.5 0.012898 0.521 77.53 1.9202

55 92.6 107.3 0.012919 0.512 77.41 1.9517

56 94.3 109.0 0.012940 0.504 77.28 1.9836

57 96.1 110.8 0.012961 0.496 77.15 2.0159

58 97.9 112.6 0.012982 0.488 77.03 2.0486

59 99.8 114.5 0.013004 0.480 76.90 2.0818

61 103.5 118.2 0.013047 0.465 76.65 2.1495

62 105.4 120.1 0.013069 0.458 76.52 2.1840

63 107.3 122.0 0.013091 0.451 76.39 2.2190

64 109.3 124.0 0.013114 0.444 76.25 2.2544

65 111.2 125.9 0.013136 0.437 76.13 2.2903

66 113.2 127.9 0.013159 0.430 75.99 2.3266

67 115.2 129.9 0.013181 0.423 75.87 2.3635

68 117.3 132.0 0.013204 0.417 75.73 2.4008

69 119.3 134.0 0.013227 0.410 75.60 2.4386

70 121.4 136.1 0.013251 0.404 75.47 2.4769

71 123.5 138.2 0.013274 0.398 75.34 2.5157

72 125.7 140.4 0.013297 0.391 75.20 2.5550

73 127.8 142.5 0.013321 0.385 75.07 2.5948

74 130.0 144.7 0.013345 0.380 74.93 2.6351

75 132.2 146.9 0.013369 0.374 74.80 2.6760



Refrigerant HCFC-22

Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

cu.ft./lb.

Specific

Volume

Vapor

cu.ft./lb.

Density

Liquid

lbs./cu.ft.

Density

Vapor

lbs./cu.ft.

76 134.5 149.2 0.013393 0.368 74.67 2.7174

77 136.7 151.4 0.013418 0.364 74.53 2.7493

78 139.0 153.7 0.013442 0.357 74.39 2.8018

79 141.3 156.0 0.013467 0.352 74.26 2.8449

80 143.6 158.3 0.013492 0.346 74.12 2.8885

81 146.0 160.7 0.013492 0.341 74.12 2.9326

82 148.4 163.1 0.013518 0.336 73.98 2.9774

83 151.8 166.5 0.013569 0.332 73.70 3.0117

84 153.2 167.9 0.013594 0.326 73.56 3.0686

85 155.7 170.4 0.013620 0.321 73.42 3.1151

86 155.7 170.4 0.013647 0.316 73.28 3.1622

87 158.2 172.9 0.013673 0.312 73.14 3.2100

88 161.7 176.4 0.013700 0.307 72.99 3.2583

89 163.2 177.9 0.013727 0.302 72.85 3.3073

90 168.4 183.1 0.013754 0.298 72.71 3.3570

91 171.0 185.7 0.013781 0.294 72.56 3.4073

92 173.7 188.4 0.013809 0.289 72.42 3.4582

93 176.4 191.1 0.013836 0.285 72.28 3.5098

94 179.1 193.8 0.013864 0.281 72.13 3.5621

95 181.8 196.5 0.013893 0.277 71.98 3.6151

96 184.6 199.3 0.013921 2.726 71.83 0.3669

97 187.4 202.1 0.013950 0.269 71.68 3.7232

98 190.2 204.9 0.013979 0.265 71.54 3.7783

99 193.0 207.7 0.014008 0.261 71.39 3.8341

100 195.9 210.6 0.014038 0.257 71.24 3.8907

101 198.8 213.5 0.014068 0.253 71.08 3.9481

102 201.8 216.5 0.014098 0.250 70.93 4.0062

103 204.7 219.4 0.014128 0.246 70.78 4.0651

104 207.7 222.4 0.014159 0.242 70.63 4.1247

105 210.8 225.5 0.014190 0.239 70.47 4.1852

106 213.8 228.5 0.014221 0.231 70.32 4.3265

107 216.9 231.6 0.014253 0.232 70.16 4.3086

108 220.0 234.7 0.014285 0.229 70.00 4.3715

109 223.2 237.9 0.014317 0.226 69.85 4.4354

110 226.4 241.1 0.014350 0.222 69.69 4.5000




Degrees

Fahrenheit

Gauge

Pressure

Absolute

Pressure

Specific

Volume

liquid

Specific

Volume

Vapor

Density

Liquid

Density

Vapor

(°f) psig * psia cu.ft./lb. cu.ft./lb. lbs./cu.ft. lbs./cu.ft.

111 229.6 244.3 0.014382 0.219 69.53 4.5656

112 232.8 247.5 0.014416 0.216 69.37 4.6321

113 236.1 250.8 0.014449 0.213 69.21 4.6994

114 239.4 254.1 0.014483 0.210 69.05 4.7677

115 242.7 257.4 0.014517 0.207 68.88 4.8370

116 246.1 260.8 0.014552 0.204 68.72 4.9072

117 249.5 264.2 0.014587 0.201 68.55 4.9784

118 252.9 267.6 0.014622 0.198 68.39 5.0506

119 256.4 271.1 0.014658 0.195 68.22 5.1238

120 259.9 274.6 0.014694 0.192 68.05 5.1981

121 259.9 274.6 0.014731 0.190 67.88 5.2734

122 263.4 278.1 0.014768 0.187 67.71 5.3498

123 267.0 281.7 0.014805 0.184 67.54 5.4272

124 270.6 285.3 0.014843 0.182 67.37 5.5058

125 277.9 292.6 0.014882 0.179 67.20 5.5856

126 281.6 296.3 0.014882 0.177 67.20 5.6665

127 285.4 300.1 0.014920 0.174 67.02 5.7486

128 289.1 303.8 0.014960 0.172 66.84 5.8319

129 296.0 310.7 0.015039 0.169 66.49 5.9164

130 296.8 311.5 0.015080 0.167 66.31 6.0022

131 300.7 315.4 0.015121 0.164 66.13 6.0893

132 304.6 319.3 0.015163 0.162 65.95 6.1777

133 308.6 323.3 0.015206 0.160 65.76 6.2674

134 312.5 327.2 0.015248 0.157 65.58 6.3585

135 316.6 331.3 0.015292 0.155 65.39 6.4510

136 320.6 335.3 0.015336 0.153 65.21 6.5450

137 324.7 339.4 0.015381 0.151 65.02 6.6405

138 328.9 343.6 0.015426 0.148 64.83 6.7374

139 333.0 347.7 0.015472 0.146 64.63 6.8359

140 337.3 352.0 0.015518 0.144 64.44 6.9360

141 341.5 356.2 0.015566 0.142 64.24 7.0377

142 345.8 360.5 0.015613 0.140 64.05 7.1410

143 350.1 364.8 0.015662 0.138 63.85 7.2461

144 354.5 369.2 0.015712 0.136 63.65 7.3529

145 358.9 373.6 0.015762 0.134 63.44 7.4615



Refrigerant HCFC-22

Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

cu.ft./lb.

Specific

Volume

Vapor

cu.ft./lb.

Density

Liquid

lbs./cu.ft.

Density

Vapor

lbs./cu.ft.

146 363.3 378.0 0.015813 0.132 63.24 7.5719

147 367.8 382.5 0.015865 0.130 63.03 7.6842

148 372.3 387.0 0.015917 0.128 62.83 7.7985

149 376.9 391.6 0.015971 0.126 62.61 7.9148

150 381.5 396.2 0.016025 0.123 62.40 8.1331

151 386.1 400.8 0.016080 0.123 62.19 8.1536

152 390.8 405.5 0.016137 0.122 61.97 8.1763

153 395.6 410.3 0.016194 0.119 61.75 8.4011

154 400.3 415.0 0.016252 0.117 61.53 8.5284

155 405.1 419.8 0.016312 0.116 61.30 8.6580

156 410.0 424.7 0.016372 0.114 61.08 8.7911

157 414.9 429.6 0.016434 0.112 60.85 8.9247

158 419.8 434.5 0.016497 0.110 60.62 9.0620

159 424.8 439.5 0.016561 0.109 60.38 9.2020

160 429.8 444.5 0.016627 0.107 60.14 9.3449

161 434.9 449.6 0.016693 0.105 59.91 9.4907

162 440.0 454.7 0.016762 0.104 59.66 9.6395

163 445.2 459.9 0.016831 0.102 59.41 9.7915

164 450.4 465.1 0.016902 0.106 59.16 9.3947

165 455.6 470.3 0.016975 0.0990 58.91 10.106

166 460.9 475.6 0.017050 0.0974 58.65 10.268

167 466.3 481.0 0.017126 0.0958 58.39 10.434

168 471.7 486.4 0.017204 0.0943 58.13 10.603

169 477.1 491.8 0.017285 0.0928 57.85 10.777

170 482.6 497.3 0.017367 0.0913 57.58 10.955

171 488.1 502.8 0.017451 0.0898 57.30 11.138

172 493.7 508.4 0.017538 0.0883 57.02 11.325

173 499.6 514.3 0.017627 0.0868 56.73 11.517

174 505.0 519.7 0.017719 0.0854 56.44 11.714

175 510.7 525.4 0.017813 0.0837 56.14 11.947

176 516.5 531.2 0.117910 0.0825 8.48 12.125

177 522.3 537.0 0.018011 0.0810 55.52 12.340

178 528.2 542.9 0.018114 0.0796 55.21 12.560

179 534.1 548.8 0.001822 0.0782 548.82 12.788

180 540.1 554.8 0.018332 0.0768 54.55 13.023



Refrigerant HCFC-22

Temp in

Degrees

Fahrenheit

(°f)

Gauge

Pressure

psig *

Absolute

Pressure

psia

Specific

Volume

liquid

cu.ft./lb.

Specific

Volume

Vapor

cu.ft./lb.

Density

Liquid

lbs./cu.ft.

Density

Vapor

lbs./cu.ft.

181 546.1 560.8 0.018447 0.0754 54.21 13.265

182 552.2 566.9 0.018566 0.0740 53.86 13.516

183 558.4 573.1 0.018690 0.0726 53.50 13.776

184 564.5 579.2 0.018820 0.0712 53.13 14.045

185 570.8 585.5 0.018954 0.0698 52.76 14.324

186 577.1 591.8 0.019095 0.0684 52.37 14.615

187 598.2 612.9 0.019243 0.0670 51.97 14.918

188 604.6 619.3 0.019397 0.0656 51.55 15.235

189 611.1 625.8 0.019561 0.0642 51.12 15.566

190 617.5 632.2 0.019733 0.0628 50.68 15.914

191 624.2 638.9 0.019915 0.0614 50.21 16.280

192 630.8 645.5 0.020110 0.0600 49.73 16.667

193 637.6 652.3 0.020647 0.0586 48.43 17.077

194 644.3 659.0 0.020540 0.0571 48.69 17.514

195 651.2 665.9 0.020782 0.0556 48.12 17.983

196 658.1 672.8 0.021045 0.0541 47.52 18.488

197 665.1 679.8 0.021334 0.0525 46.87 19.038

198 657.4 672.1 0.021655 0.0509 46.18 19.642

199 664.5 679.2 0.022048 0.0492 45.36 20.315

200 671.7 686.4 0.022436 0.0474 44.57 21.080

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Refrigerating Engineers & Technicians Association · 2020-03-04 · CIRO Exam Study Guide Page 3 of 66 ©2019 Refrigerating Engineers & Technicians Association (RETA) Updated August