SMART- Manual for use and maintenance 8C/3MD...3 Introduction to the SMART-8C/3MD Munters' SMART-8C/3MD Controller provides a comprehensive solution for dairy farmers seeking a low

Manual for use and maintenance

SMART-8C/3MD Climate Controller

Ag/MIS/UmGB-2375-07/16 rev 1.2

P/N: 110591

SMART-8C/3MD

© Munters AB, 2016 2

SMART-8C/3MD Manual for use and maintenance

Revision: N.1.2 of 13.11.2016

Product Software: 1.01

This manual for use and maintenance is an integral part of the apparatus together with the attached technical documentation.

This document is destined for the user of the apparatus: it may not be reproduced in whole or in part, committed to computer memory as a file or delivered to third parties without the prior authorization of the assembler of the system.

Munters reserves the right to effect modifications to the apparatus in accordance with technical and legal developments.


Index

Chapter page

1 Introduction ................................................................................................................... 5

1.1 Disclaimer ..................................................................................................... 5 1.2 Introduction ................................................................................................... 5 1.3 Notes ........................................................................................................... 5

2 Precautions .................................................................................................................... 6

2.1 Grounding .................................................................................................... 6 2.2 Checking the battery level ................................................................................ 6

3 Introduction to the SMART-8C/3MD ........................................................................... 7

3.1 Features ........................................................................................................ 7 3.2 Theory of operation ........................................................................................ 7

3.2.1 Mode ............................................................................................................................. 7 3.2.2 Fan operation ................................................................................................................ 7 3.2.3 Curtains .......................................................................................................................... 8

3.3 User interface ................................................................................................ 8 3.4 Hot keys ....................................................................................................... 8 3.5 Menu structure ............................................................................................... 9 3.6 General features ............................................................................................ 9 3.7 LEDs ........................................................................................................... 10

4 Using the SMART-8C/3MD ....................................................................................... 11

4.1 Initial Setup ................................................................................................. 11 4.1.1 Setting the basic parameters ...................................................................................... 11 4.1.2 Configuring the alarm parameters ............................................................................. 11

4.2 Sensor Configuration .................................................................................... 12 4.2.1 Configuring temperature sensors ............................................................................... 12 4.2.2 Configuring digital input sensors ............................................................................... 13

4.3 Testing sensors and relays .............................................................................. 13 4.4 Cooling ...................................................................................................... 14

4.4.1 Munters Drive fans ..................................................................................................... 14 4.4.2 Foggers and soakers .................................................................................................. 15 4.4.3 Configuring the curtains ............................................................................................. 18

5 Installation .................................................................................................................. 19

5.1 Mains voltage connections ............................................................................. 19 5.2 SMART-8C/3MD wiring ................................................................................ 19 5.3 Communication wiring ................................................................................... 23


6 Electrical grounding for controllers ........................................................................... 24

6.1 Ground rods ................................................................................................ 24 6.2 Ground wire ................................................................................................ 25 6.3 Ground clamps ............................................................................................ 25 6.4 What should be grounded? ........................................................................... 25

7 Technical specifications ............................................................................................. 26

8 Troubleshooting ......................................................................................................... 27

9 Appendix 1: Features parameters ............................................................................. 28

10 Warranty .................................................................................................................... 31


1 Introduction

1.1 Disclaimer

Munters reserves the right to make alterations to specifications, quantities, dimensions etc. for production or other reasons, subsequent to publication. The information contained herein has been prepared by qualified experts within Munters. While we believe the information is accurate and complete, we make no warranty or representation for any particular purposes. The information is offered in good faith and with the understanding that any use of the units or accessories in breach of the directions and warnings in this document is at the sole discretion and risk of the user.

1.2 Introduction

Congratulations on your excellent choice of purchasing a SMART-8C/3MD controller!

In order to realize the full benefit from this product it is important that it is installed, commissioned and operated correctly. Before installation or using the fan, this manual should be studied carefully. It is also recommended that it is kept safely for future reference. The manual is intended as a reference for installation, commissioning and day-to-day operation of the Munters Controllers.

1.3 Notes

Date of release: March 2014

Munters cannot guarantee to inform users about the changes or to distribute new manuals to them.

NOTE All rights reserved. No part of this manual may be reproduced in any manner whatsoever without the expressed written permission of Munters. The contents of this manual are subject to change without notice.


2 Precautions

• Grounding • Checking the battery level

2.1 Grounding

• Always connect temperature and sensor shields to earth ground. Avoid mixing high voltage wiring with sensor and low voltage wiring.

• Keep the controller as far as possible from heavy contactor boxes and other sources of electrical interference.

• Do not connect communication wire shields, which go from one house to another at both ends. Connect them at one end only. Connection at both ends can cause ground loop currents to flow, which reduce reliability.

• The COM connection for communications is not the shield wire. The COM, RX and TX wires must connect to each other at all controllers.

2.2 Checking the battery level

Check the battery once a year. The output must be 2.7 volts (minimum). Authorized personnel only must replace the battery if the output is below the minimum required level or every five years.


3 Introduction to the SMART-8C/3MD

Munters' SMART-8C/3MD Controller provides a comprehensive solution for dairy farmers seeking a low cost solution without sacrificing quality. SMART-8C/3MD gives you control over the temperature and humidity in buildings using intelligent, user-friendly climate control software.

The primary function of SMART-8C/3MD is to control the fans; the secondary function is to control curtains. Ventilation also includes fogging and soaking options.

3.1 Features

• Controller operates fan and curtains based on temperature or temperature-humidity calculations

• Analog inputs: o Temperature (up to three) o Humidity (one)

• Ventilation via: o Munters Drive fans (three analog output controlled) o Relay-controlled fans (three)

• Digital inputs o Wind speed o Water measurement

3.2 Theory of operation

• Mode • Fan operation • Curtains

3.2.1 Mode

SMART-8C/3MD can operate according to one of the user-selected modes:

• Air Temperature: Current air temperature is the key factor in determining controller functionality

• Temperature Humidity Index (THI): Combines humidity and average temperature to provide a fluctuating target temperature

3.2.2 Fan operation

SMART-8C/3MD features two types of fans:

• Munters Drive: The fans are controlled by 10 – 0 volt analog outputs. They provide the bulk of the ventilation in the shed. There are three Munters Drive fans, each one in a different zone in the shed. Each fan works with an additional cooling technique: o Munters Drive 1: Soaker


o Munters Drive 2: Foggers o Munters Drive 3: Foggers

• Relay controlled fans: There are three relay controlled fans that provide additional ventilation. These fans turn on when the Munters Drive fans turn on.

3.2.3 Curtains

The controllers open and close curtains according to temperature readings. In the presence of high wind speeds, the curtains can be set to a minimum position.

3.3 User interface

• LED indicator: ON/OFF state of each LED indicates whether the relay is operating or idle. • Prog key: Navigate to the parameters in main menus and edit parameters (press once to

enter edit mode, press again to exit edit mode). • Down / Up arrow keys: Increase/decrease parameter values, navigate Hot Keys (see

Hot Keys section) and menus. • Select key:

o Navigates in and out of main screen and menus (press once to enter main menus, press again to exit).

o Erase changes made to parameters. If you change a parameter incorrectly, click Select and the parameter reverts to the previous definition.

Summary: To get to menu items:

1. Press Select. 2. Press Up/Down to reach the required menu. 3. Press Prog to enter the menu. 4. Press Up/Down to reach the menu item. 5. Press Prog to edit the item. 6. Edit as required. 7. Press Prog. 8. Press Select. For example, to go to Curtain A configuration, from the main screen, press the following keys: Select > System >Curtain A., until the required parameter appears.

NOTE After changing any parameter, you must go to the main screen to save the change.

3.4 Hot keys

The SMART-8C/3MD can display key data on the screen (no need to enter the menus). To access this data, on the Main screen, press the ▼▲ keys. Data displayed:

• Current average temperature, target temperature, and time o In THI Mode: Current THI and Target THI

• Individual temperature sensors readings o In THI Mode: Individual humidity sensor readings and average temperature

• Current humidity • 1 to 3 Munters Drive fan operation percentage


• Current position, next step time, and state messages o Locked: Controller has set the curtains to 0 or 100%. o Working: Curtains are changing position o Min Pos: Curtains are at the designated minimum position o Idle: Curtains are in the Happy Zone and do not move o Cal Req!: Curtains require calibration (usually happens after a cold start) o Calib: Curtains are calibrating

• Fogger cycle state timing • Soaker cycle state timing • Daily water consumption

3.5 Menu structure

Table 1: Menu Structure

Control Settings Alarms Test Calibration System

Temperature set point

Curtain settings

High temperature differential

Temperature sensor 1 - 3

Temperature sensor 1 – 3

Control method

Fans 1 - 3 Low temperature differential

Humidity sensor

Humidity sensor Temperature 3 definition

Fogging & soaking settings

Delay (seconds)

Analog Output 1 - 3

Water counter High wind speed

Reminder Relays 1 - 8 Curtain open Calibration steps

Digital inputs 1 - 2

Curtain close Measurement unit

Software version

Fan 1 – 3 minimum/maximum voltage

History

LCD version Current time

Communication version

Unit Number

Hardware version

Baud rate

System reset

LCD test

3.6 General features

• If a screen other than the main screen is displayed for five consecutive minutes, the system returns to the main screen display automatically (in menus only, not including Hot Keys).


NOTE Allowing the screen to return to the main screen by waiting in this manner erases any changes made to the parameters.

• When a value is being modified with the arrow keys (either ▲ or ▼), the changes occur at a rate of two changes per second. After holding down an arrow key for three seconds, the changes occur at a rate of 10 changes per second.

• If the system displays one of the Hot Keys and no alarms arise, the screen is refreshed every second. If the system displays a Hot Key screen and alarms arise, both the Hot Key screen and the alarm are displayed alternately every three seconds. If more than one alarm is activated, the Hot Key screen displays the different alarms alternately.

3.7 LEDs

The following illustrations detail the SMART-8C/3MD LEDs

Fogger Soaker Curtain Open Curtain Close Munters Drive 1 - 3

Alarms


4 Using the SMART-8C/3MD

The following sections detail:

• Initial Setup, page 11 • Sensor Configuration, page 12 • Testing sensors and relays, page 13 • Cooling, page 14

4.1 Initial Setup

The following sections detail the initial steps to be taken after installing a unit.

• Setting the basic parameters • Configuring the alarm parameters

4.1.1 Setting the basic parameters

Basic parameters are those parameters used to run the software and communications programs.

To set the basic parameters:

1. On the main menu, press Select. 2. Scroll to System and press Prog. 3. Scroll down and set the following parameters. Press Prog to enter and exit each parameter.

o Control Method: Choose between Temp and THI. o Measuring Unit: Select Metric or Non Metric. This parameter defines both the

wind speed unit (kilometers/hour or miles/hour) and the temperature unit (Centigrade or Fahrenheit). Default: Metric

o History: Choose the frequency at which data is collected (1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 8 hours, 12 hours, and 1 day

o Time: Set the current time. o Unit No: Define the unit number. This number is used when defining communication

between a controller and a PC.

CAUTION Each unit must have a unique number.

o Baud Rate: Choose the required value (default: 9600). This parameter is a measure of data transmission speed between the controller and computer.

NOTE The faster the speed, the higher chance of errors in data transmission.

4.1.2 Configuring the alarm parameters

The Alarm menu enables setting the alarm parameters.

To set the alarm parameters:

1. In the main menu, go to Alarms. 2. Press Prog.


3. Set the following: • High Temp Diff: The differential above the target temperature at which an alarm is sent. • Low Temp Diff: The differential below the target temperature at which an alarm is sent. • Delay (sec): The number of seconds before the alarm is activated. • Reminder: Pressing any button when an alarm sounds causes the controller to ignore

messages for this length of time. The alarm message remains on the screen. Table 2 lists the alarm messages. View the alarms on the main screen. The main screen displays the alarms and the main screen alternately. SMART-8C/3MD navigates between the alarms automatically.

Figure 1: Alarm Example

Table 2: Alarm Messages

Alarm Display Explanation Possible Alarm Reason

T1 SNS Opened\Shorted

Error in temperature sensor 1 Temperature sensor number 1 is either out of order, disconnected or shorted





HUM SNS ERR Error in humidity sensor Humidity sensor is either out of order or disconnected

High Temperature High temperature The average temperature in the building is higher than the temperature set as the alarm's temperature difference.

Low Temperature Low temperature The average temperature in the building is lower than the temperature set as the alarm's temperature difference.

• Reset the alarm relay by pressing Select. The alarm messages continue to be displayed until the problem is resolved.

4.2 Sensor Configuration

The following sections detail how to configure the sensor devices.

• Configuring temperature sensors • Configuring digital input sensors

4.2.1 Configuring temperature sensors

This section details how configure temperature sensors.

1. Install up to three FTS devices as shown in Figure 6, page 21. 2. Press Select and go to System > Temp-3.

ALARM!!!

Sensor 1 Low Temp


3. Define the third temperature sensor as an inside or outside thermometer.

NOTE FTS-3's data is used in controller calculations only if the sensor is defined as an inside thermometer.

4. Press Select and go to Temperature > Temp. 5. Set the Target Temperature/Target THI. 6. If required, go to Calibration > T1. 7. Change the temperature output value. The system remembers the difference between the system's calculation and the changed calibration value.

CAUTION Munters temperature sensors come pre-configured. Calibrate a sensor only if there is a difference between the temperature displayed and the actual temperature.

8. Repeat the calibration for other temperature sensors.

NOTE If an error occurs with a temperature sensor, the information regarding the specific sensor can be deleted from the Calibration menu. This is done by pressing <PROG> when an invalid sensor’s field appears.

4.2.2 Configuring digital input sensors

This section details how to install the digital inputs. SMART-8C/3MD can support a water counter and a wind speed reader. Each digital input is optional and independently installed.

NOTE Only perform the steps required for your particular installation.

Connect the digital input device(s) as shown in Figure 6, page 21.

1. Press Select and go to Test > Digital inputs. 2. Verify that the sensors are working properly. 3. If required, go to Calibration > Water counter and press Prog. 4. Change the water/pulse ratio. 5. Go to System > High Wind Speed and press Prog. 6. Choose value of high wind speed above which all devices turn off and curtain goes to minimum position. 7. Press Prog. 8. Press Select.

4.3 Testing sensors and relays

This menu is used to test the sensors and relays as well as display software/hardware information.

CAUTION Entering Test screen pauses any control currently active. Exit the screen to restart functions.

Pressing Prog when any of the relay items (FAN1, FAN2 or Cooling) is shown causes the controller to pause. Pressing Select once again makes the controller resume operation.

1. Go to Test. 2. Choose the required test:

• T1/T2/3: Tests temperature sensors • Humidity: Tests humidity sensor

• Analog: Test the analog output between 10.0 to 0.0V

• Relay #: Tests if relays 1 – 8 are on or off


• Digital Input-1/2: Tests the digital input pulses

• Sft Ver: Checks the software version and displays the barn type mode.

• LCD Ver: Checks the LCD version • Comm Ver: Checks the com version

• Hardware Ver: Shows the hardware version

• System Reset: System reset (for technician’s use only!)

• LCD Test: Tests the LCD screen

4.4 Cooling

The following sections detail how to configure the cooling methods.

• Munters Drive fans • Foggers and soakers • Configuring the curtain

4.4.1 Munters Drive fans

The following sections detail how to configure the Munters Drive fans.

• Munters Drive background • Configuring the Munters Drive fans

4.4.1.1 Munters Drive background

Figure 2 illustrates a sample graph showing how the ventilation rises from minimum to maximum.

Figure 2: Munters Drive fan graph

When Variable Speed Fan is activated (value above 0%) the corresponding relays should be activated:

• Fan 1: Relay 5 • Fan 2: Relay 6 • Fan 3: Relay 7


4.4.1.2 Configuring the Munters Drive fans

Connect the analog output devices (Munters Drive) as shown in Figure 6. Connect fans 1, 2, or 3 as shown in Figure 7 (optional).

1. Press Select. 2. Scroll to Settings and press Prog. 3. Scroll to Fan 1 and press Prog. 4. Set the following parameters:

o Temp Diff: The differential from the target temperature at which the fan turns on o Temp Band: When the fan begins to operate, the fan goes from the minimum to

maximum operation percentages within this band. o Time From: Beginning of the time period in which the fans can operate o Time To: End of the time period in which the fans can operate

NOTE Setting the time from 00:00 to 00:00 enables 24 hour operation. Setting any other identical times (for example 13:15 to 13:15) disables the fans.

o Minimum Speed: Minimum fan speed in percentages. o Maximum Speed: Maximum fan speed in percentages

5. Press Select. 6. Scroll to Fan 2 and Fan 3 and press Prog. 7. Repeat step 4. 8. Press Prog and then press Select. 9. Scroll to Calibration and press Prog. 10. Scroll to Fan 1 Min Volt. 11. Set the minimum possible voltage for the fan. 12. Press Prog. 13. Scroll to Fan 1 Max Volt. 14. Set the maximum possible voltage for the fan. 15. Repeat for each fan.

4.4.2 Foggers and soakers

The following section details how to configure the foggers and soakers. These work in conjunction with the Munters Drive Fans. Soakers work with Munters Drive 1, foggers work with Munters Drive 2.

• Fogger and soaker background • Configuring the fogger and soaker

4.4.2.1 Fogger and soaker background

Figure 3 illustrates a sample graph showing how soakers (sprinklers) and ventilation work together. Figure 4 illustrates a sample graph showing how soakers (sprinklers) and fogging work together


Figure 3: Graph demonstrating Zone 1 ventilation and soaking

NOTE When soakers operate, Fan1 is disabled.

• The fans go from 0 to 100% based on the Munters Drive Temp Diff and Temp Band parameters (Munters Drive fans setup).

• Soakers begin operating based on the Temp Diff On parameter (Fogger and soaker setup)

Figure 4: Graph demonstrating Zone 2/3 ventilation and fogging

• The fans go from 0 to 100% based on the Munters Drive Temp Diff and Temp Band parameters (Munters Drive fans setup).

• Foggers begin operating based on the Temp Diff On parameter (Fogger and soaker setup)


Figure 5 shows how the soakers and foggers respond to increases or decreases in temperature.

Figure 5: Fogger/soaker response to increase/decrease in temperature

4.4.2.2 Configuring the fogger and soaker

Connect fogger and soaker as shown in Figure 8.

1. Press Select. 2. Scroll to Settings and press Prog. 3. Scroll to Fan 1 and press Prog. 4. Set the following parameters:

o Temp Diff On: The differential from the target temperature from which the fogger starts operating.

o Temp Diff Off: The differential from the target temperature from which the fogger stops operating.

o Fog/Soak to Hum: When the relative humidity level rises to this point, the foggers and soakers cease to operate.

o On Time: Number of seconds that the foggers and soakers operate. To disable, enter 0).

o Off Time: Number of seconds that the foggers and soakers do not operate. o Time From: Beginning of the time period in which the foggers/soakers can operate o Time To: End of the time period in which the fans can operate

NOTE Setting the time from 00:00 to 00:00 enables 24 hour operation. Setting any other identical times (for example 13:15 to 13:15) disables the fogger and soaker.

5. Press Select. 6. Scroll to Fan 2 and Fan 3 and press Prog. 7. Repeat step 4. 8. Press Prog. 9. Press Select.


4.4.3 Configuring the curtains

The following section details how to configure the curtains.

Connect curtains as shown in Figure 8.

1. Press Select. 2. Scroll to Settings and press Prog. 3. Scroll to Curtains and press Prog. 4. Set the following parameters:

o Temp Diff Below: The differential from the target temperature from which the curtain closes entirely.

o Temp Diff Above: The differential from the target temperature from which the curtain opens entirely (100%).

o Stage Delay: Define the delay time (from the previous current movement) before the next current opening or closing.

o Step Size: Define the increment (in percentage) between each level. o Minimum Position: Minimal opening percentage o Time From: Beginning of the time period in which the curtains can operate o Time To: End of the time period in which the curtains can operate

NOTE Setting the time from 00:00 to 00:00 enables 24 hour operation. Setting any other identical times (for example 13:15 to 13:15) disables the curtains.

5. After setting each parameter, press Prog. 6. Press Select. 7. Scroll to System and press Prog. 8. Scroll to High Wind Speed and press Prog. 9. Define the wind speed above which all devices turn off and curtain goes to minimum position. 10. Press Prog.


5 Installation

The following sections details the installation and wiring procedures.

CAUTION If any problem arises with the hardware, do not open the box. Contact an authorized electrician.

5.1 Mains voltage connections

Connect the input power of the controller to one or more circuit breakers in the electrical enclose (fuse box).

• Single wire supply: Recommended for applications in which the controller's outputs are connected to low power contactors (for example those shown in Figure 7). In this case one 18 AWG cable should be used for Phase and Neutral.

• Multi wire supply: Recommended for high power applications in which the outputs supply up to 5 Amp each. In this case a separate 18 AWG wires should be connected from each circuit breaker in the electrical enclose (fuse box) to each output and to the variable speed fan. All the wires (from the separate circuit breakers) are from the same single phase.

WARNING! Multi wire supply! Up to nine independent mains input may be present in the SMART-8C/3MD Controller. Put all appropriate circuit breakers in the OFF position before servicing.

5.2 SMART-8C/3MD wiring

The following drawings detail the SMART-8C/3MD wiring.

WARNING! Before wiring the unit, disconnect the power!

• Figure 6: Board Layout • Figure 7: Wiring Diagram of Low Voltage Section • Figure 8: Wiring Diagram of Main Voltage Section and Protection • Figure 9: Farm Dairy Communication RS-232 Wiring Diagram


Figure 6: Board Layout


Figure 7: Wiring Diagram of Low Voltage Section


Figure 8: Wiring Diagram of Main Voltage Section and Protection

NOTE The above diagram is an example only and subject to change.


5.3 Communication wiring

Figure 9: SMART-8C/3MD Communication RS-232 Wiring Diagram


6 Electrical grounding for controllers

Electrical equipment can be destroyed or slowly damaged by voltage spikes, lightning hits, etc. Proper electrical grounding in combination with the SMART-8C/3MD internal protections is essential to protect the system, reduce the risk of damage and prolong its lifetime. Correct selection and installation of equipment will protect your system and reduce the risk of human injury.

Proper grounding provides an easy path for electrical current to return to its source. A grounding system should tie all non-current carrying conductors to earth ground (0 volts). The grounding system should present a minimum resistance to current flow. Make sure all items used are in proper condition; for example, a corroded wire clamp attaching a ground wire to a ground rod might add 100 ohms or more resistance to a system. Less than 5 ohm will be considered a good ground.

6.1 Ground rods

Ground rods are used to efficiently connect the system to earth where current may be dissipated in the soil.

• Material: Ground rods should be copper clad or galvanized steel. • Diameter: Minimum 5/8”, preferably 3/4”. Generally the larger the rod diameter, the

lower its resistance to current flow. • Length: Minimum 2.5 meters (8 feet), preferably 3-meter (10-feet). A longer ground rod

will reach a soil with higher moisture content. Moist soil carries current much better than drier soil.

• Single grounding: It is important that there is only one grounding location where a rod or series of rods are connected to each other using a ground wire.

• Independent ground rods will increase the risk of current, from a lightning strike for example, being dissipated through one rod and reentering the system through an adjacent rod.

• Location: Close to the main circuit breaker panel and in moist soil. For example in an area that is usually wet from a drip or a low spot where water drains. Make sure the area is well protected from damage by lawnmowers, tractors, etc.

• Rod installation: Drive the rod into the earth until about 10 cm (4 inches) is left above grade. If it is impossible to drive the rod to the proper depth, it is acceptable to lay the rod horizontally, 80 cm (2.5 feet) below grade.

• In case the rod is exposed to damage, for example by lawnmowers or tractors, it can be installed in a hole, about 20 cm (8 inches) deep so that the rod is about 10 cm under grade and 10 cm above hole level.

NOTE The National Electric Code (NEC) mandates two ground rods unless you can show less than 10 ohms resistance with one rod.


6.2 Ground wire

The ground wire is a large copper wire that connects the main circuit breaker panel to the ground rod.

• Material: Ground rods should be copper clad or galvanized steel. o Diameter: Typically, 16 mm (6-gauge) copper wire is sufficient. If the wire run is

greater than 20 feet, 20 mm (4-gauge) wire should be used. o Length: Minimum 2.5 meters (8 feet), preferably 3-meter (10-foot). A longer

ground rod will reach a soil with higher moisture content. Moist soil carries current much better than drier soil.

The ground wire should be protected from damage by lawnmowers, tractors, etc. It should be buried minimum 15 cm (6 inches) underground for protection and enter the house as soon as possible. It is important that the wire not be cut; it should remain continuous.

6.3 Ground clamps

Ground wires should not be merely wrapped around a ground rod. Ground clamps are used to attach a ground wire to a ground rod. The most common clamp is an acorn clamp. Make sure the ground clamps you select are rated for outdoor use. Do not use pipe clamps rated for inside water lines or hose clamps to attach the ground wire.

Figure 10: Ground Connection

6.4 What should be grounded?

Any equipment that is or could become energized, even accidentally, should be grounded. Current from lightning strikes objects in a random fashion. Accounts of lightning strikes reveal scenarios most of us could not predict.

Electric circuits should be wired with a 3-wire conductor consisting of hot, neutral and grounding wires. The grounding wire should be attached cleanly and securely to devices or systems to be grounded. The other end of the grounding wire should be attached to the ground bus on the main panel.


7 Technical specifications

Input Power Voltage One Phase 220 VAC

0.1 Amp, 50-60Hz

Relay Loads 8 x 5.0 Amps, 250 Volts

Analog Inputs 3 temperature sensor inputs

1 humidity sensor input

0.1 A

Analog Outputs 3 x Analog Outputs 10-0VDC

Digital Inputs 5 mA @ 5 volts, dry contact

2 inputs (wind speed, water measurement)

Operating Temperature Range 0° to +50° C (32° to 125° F)

Enclosure Water and Dust Tight

Fuses Main fuse: 0.100 Amps, 250 Volts

Relay Fuse 5 A


8 Troubleshooting

Display Problem Possible Cause Possible Solution

Error

Error message on the main screen (instead of Temp indication); the system does not read any temperature sensor

Temperature sensor not connected

Connect sensor properly

Temperature sensor's terminals or wires not connected, or not properly connected.

Connect terminals and wires properly. Unbolt the screw, make sure the plate is upwards

Wrong terminals connected Connect appropriate terminals

Flat cable not properly connected

Connect flat cable properly

Sensor Fail Faulty sensor

Sensor not connected Connect sensor properly

Sensor's terminals are not connected, or not properly connected

Connect terminals and wires properly. Unbolt the screw, make sure the plate is upwards

Wrong terminals connected

Connect appropriate terminals

Flat cable not properly connected

Connect flat cable properly

Faulty card, fuse, connections or external device

Replace faulty part

No display Unit does not operate

No input voltage Contact authorized electrician

Main fuse burned Check the main fuse (F9 & F6)

Faulty flat cable Replace the flat cable

- Unclear display or no display

Contrast is not set properly

Set contrast (R2) properly

- No LCD display and LED is blinking

LCD or CPU problem Replace LCD or CPU card

Alarm or N/A

Sensor fail Sensor disconnected or not properly connected

Connect sensor properly

CAUTION In case of hardware problems, do not open the box. Contact an authorized electrician.


9 Appendix 1: Features parameters

The following tables summarize the features parameters.

• Temperature Menu Parameter: o Temperature Range: 10.0 to 50° C. Default: 25° C o THI Range: 40.0 to 120.0. Default: 72

Table 3: Curtain Parameters Summary

Parameter Name Default Value Increment Value Min Value Max Value

Temp Diff Below -1° F 0.1 -20° F 0° F

Temp Diff Above +2° F 0.1 0° F 50° F

Stage Delay (seconds) 300 1 10 399

Step size (%) 10 1 3 100

Minimum Position (%) 0 1 0 100

Time From 08:00 1 00:00 23:59

Time To 17:00 1 00:00 23:59

Table 4: Munters Drive Fan Parameters Summary


Temp Diff -3° F 0.1 -20° F 40° F

Temp Band +3° F 0.1 0° F 20° F

Time From 08:00 1 00:00 23:59

Time To 17:00 1 00:00 23:59

Min Speed (%) 0 1 1 100

Max Speed 100 1 0 100

Min/Max Volt ? ? ? ?

Table 5: Fogging Parameters Summary


Temp Diff On 2.0° F 0.1 0° F +60° F

Temp Diff Off 1.0° F 0.1 0° F +60° F

Fogging to Hum (%) 85 1 0 100

On Time (sec) 120 1 0 999

Off Time (sec) 480 1 0 999



Time From 08:00 1 00:00 23:59

Time To 17:00 1 00:00 23:59

Table 6: Soaker Parameters Summary


Temp Diff On 2.0° F 0.1 0° F +60° F

Temp Diff Off 1.0° F 0.1 0° F +60° F

Soak to Hum (%) 85 1 0 100

On Time (sec) 120 1 0 999

Off Time (sec) 480 1 0 999

Time From 08:00 1 00:00 23:59

Time To 17:00 1 00:00 23:59

Table 7: Alarm Parameter Summary


High Temp Diff 10.0° F 0.1° F 1° F 99° F

Low Temp Diff -10.0° F -0.1° F -1° F -99° F

Delay (sec) 60 1 10 999

Reminder 60 1 0 999

Table 8: Calibration Parameter Summary


Thermometer 1/2/3 0º ± 0.1 -9.0 º +9.0º

Humidity (%) 0 1 -25 25

Water Counter 1.0 0.1 0.1 999.0

Curtain Open/Close (seconds) 60 1 0 999

Fan-1/2/3 Min Volt 0.0 0.1 0.0 10.0

Fan-1/2/3 Max Volt 0.0 0.1 0.0 10.0

Table 9: System Menu Summary

Parameter Name Default Value Increment Value Possible Value

Control Method Temp N/A Temp/THI

Temp-3 Out N/A Out/In

Wind Speed 32 1 0 to 80


Parameter Name Default Value Increment Value Possible Value

Measurement Unit Metric N/A Non-metric, Metric

History 1 Day N/A 1, 2, 3, 4, 5, 6, 8 hrs., 1 day

Time No default 1 minute 00:00 – 23:59

Unit Number 0 0 0 - 255

Baud Rate 9600 N/A 2400, 4800, 9600, 19200

This section explains the logic used for each cooling device.


10 Warranty

Warranty and technical assistance

Munters products are designed and built to provide reliable and satisfactory performance but cannot be guaranteed free of faults; although they are reliable products they can develop unforeseeable defects and the user must take this into account and arrange adequate emergency or alarm systems if failure to operate could cause damage to the articles for which the Munters plant was required: if this is not done, the user is fully responsible for the damage which they could suffer.

Munters extends this limited warranty to the first purchaser and guarantees its products to be free from defects originating in manufacture or materials for one year from the date of delivery, provided that suitable transport, storage, installation and maintenance terms are complied with. The warranty does not apply if the products have been repaired without express authorisation from Munters, or repaired in such a way that, in Munters’ judgment, their performance and reliability have been impaired, or incorrectly installed, or subjected to improper use. The user accepts total responsibility for incorrect use of the products.

The warranty on products from outside suppliers fitted to SMART-8C/3MD, (for example cables, sensors, etc.) is limited to the conditions stated by the supplier: all claims must be made in writing within eight days of the discovery of the defect and within 12 months of the delivery of the defective product. Munters has thirty days from the date of receipt in which to take action, and has the right to examine the product at the customer’s premises or at its own plant (carriage cost to be borne by the customer).

Munters at its sole discretion has the option of replacing or repairing, free of charge, products which it considers defective, and will arrange for their despatch back to the customer carriage paid. In the case of faulty parts of small commercial value which are widely available (such as bolts, etc.) for urgent despatch, where the cost of carriage would exceed the value of the parts, Munters may authorise the customer exclusively to purchase the replacement parts locally; Munters will reimburse the value of the product at its cost price.

Munters will not be liable for costs incurred in demounting the defective part, or the time required to travel to site and the associated travel costs. No agent, employee or dealer is authorised to give any further guarantees or to accept any other liability on Munters’ behalf in connection with other Munters products, except in writing with the signature of one of the Company’s Managers.

WARNING: In the interests of improving the quality of its products and services, Munters reserves the right at any time and without prior notice to alter the specifications in this manual.


The liability of the manufacturer Munters ceases in the event of:

• dismantling the safety devices; • use of unauthorised materials; • inadequate maintenance; • use of non-original spare parts and accessories.

Barring specific contractual terms, the following are directly at the user’s expense:

• preparing installation sites; • providing an electricity supply (including the protective equipotential bonding (PE) conductor,

in accordance with CEI EN 60204-1, paragraph 8.2), for correctly connecting the equipment to the mains electricity supply;

• providing ancillary services appropriate to the requirements of the plant on the basis of the information supplied with regard to installation;

• tools and consumables required for fitting and installation; • lubricants necessary for commissioning and maintenance.

It is mandatory to purchase and use only original spare parts or those recommended by the manufacturer.

Dismantling and assembly must be performed by qualified technicians and according to the manufacturer’s instructions.

The use of non-original spare parts or incorrect assembly exonerates the manufacturer from all liability.

Requests for technical assistance and spare parts can be made directly to the nearest Munters office. A full list of contact details can be found on the back page of this manual.

© Munters AB, 2013

Ag/

MIS

/Um

GB-

2375

-07/

16 re

v 1.

2

www.munters.com

Australia Munters Pty Limited, Phone +61 2 8843 1594, Brazil Munters Brasil Industria e Comercio Ltda, Phone +55 41 3317 5050, Canada Munters Corporation Mason, Phone +1 517 676 7070, China Munters Air Treatment Equipment (Beijing) Co. Ltd, Phone +86 10 80 418 000, Denmark Munters A/S, Phone +45 9862 3311, India Munters India, Phone +91 20 3052 2520, Indonesia Munters, Phone +62 818 739 235, Italy Munters Italy S.p.A., Chiusavecchia, Phone +39 0183 52 11, Japan Munters K.K., Phone +81 3 5970 0021, Korea Munters Korea Co. Ltd., Phone +82 2 761 8701, Mexico Munters Mexico, Phone +52 818 262 54 00, Singapore Munters Pte Ltd., Phone +65 744 6828, South Africa and Sub-Sahara Countries Munters (Pty) Ltd., Phone +27 11 997 2000, Spain Munters Spain S.A., Phone +34 91 640 09 02, Sweden Munters AB, Phone +46 8 626 63 00, Thailand Munters Co. Ltd., Phone +66 2 642 2670, Turkey Munters Form Endüstri Sistemleri A.Ş, Phone +90 262 751 37 50, USA Munters Corporation Mason, Phone +1 517 676 7070, Vietnam Munters Vietnam, Phone +84 8 3825

6838, Export & Other countries Munters Italy S.p.A., Chiusavecchia Phone +39 0183 52 11

Documents

SMART- Manual for use and maintenance 8C/3MD...3 Introduction to the SMART-8C/3MD Munters' SMART-8C/3MD Controller provides a comprehensive solution for dairy farmers seeking a low