D-NETNetwork Service System

Off-site monitoring for your VRV system investment.Identifies and recommends maintenance solutions.Adjusts your system to help optimize comfort and energy savings.

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D-NET networks your system with Daikin’s monitoring center via the internet. The monitoring center allows Daikin to monitor more than 80 system data points*, operational loads, and weather conditions from more than 400 weather station locations across the United States and Canada. To help ensure comfort, D-NET analyzes the data and uploads the optimum settings for your VRV system.

Continuous monitoring assists with maximum performance. D-NET alerts maintenance personnel in

advance if service is required, and determines what tools or components are necessary for the repair. By identifying potential problems sooner, D-NET monitoring helps extend the life of your system while maximizing efficiency. If an equipment malfunction is detected, an authorized service dealer or contractor can be notified for quick maintenance response to reduce any potential downtime.

D-NET collects Daikin VRV system operation data daily to optimize your system’s performance. As a result, D-Net contributes to efficiency gains without sacrificing comfort.

* D-NET is a paid subscription service. Contact your local Daikin dealer for information for cost and connectivity requirements.

3D-NET Network Servicing System

W

Information on your system’s operation and component status is continually uploaded to Daikin’s monitoring center.

Controls commands are not sent automatically. only when D-net software (ITC/ITM) onsite connects to the D-net server is when the controls command are sent. not a constant sent any time of day or time from our server.

D-NET analyzes your system’s information and calculates the optimum control strategy according to operation loads and local weather conditions.

Data exchange

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Energy-saving control and operation adjustments

Data analysis

Provides energy-savings reporting and maintenance

recommendations.

Remote energy-savingcontrol function

Remote maintenance monitoring control function

Less energy, maximum comfort, and service life.

Daikin’s Monitoring Center

High89°

Low65°

RH33%

3

1

1

Localforecast

4

Refrigerant Temperature Control

Power consum

ption (kWh)

Indoor Temperature(return air)

Power Consumption

(Time)

Temperature Setpoint

90

9:00 10:00 11:00 12:00

80

70

60

50

40

Energy-saving control OFF Energy-saving control ON

Cooling Operation

Power consumption canbe reduced up to 20%while maintainingroom temperaturesetpoints.

Tem

per

atu

re (°

F)

Energy-savingstrategies may be

reduced or suspendedif conditions are

not optimum

Building loads arepredicted based upon

accumulateddata histroyand actualconditions

Nov 01/2015 - Jan 31/2016

Quarterly Term

Jobsite No.

Jobsite Name

Jobsite Address

D-net Report Quarterly

Daikin Manufacturing Company,LP

1645 Wallace Drive, Suite 110,

Carrollton, TX 75006

Outdoor Unit Hours

Description

System Operational Data

These charts show some of the operational points recorded during the monitoring period.

Part information

toAccumulated operation time

Use start day

Accumulation start day

The latest add up day

Outdoor UnitREYQ216PBTJ

Serial NumberA001590

D-Net Address

2

Operation Time2062.6

Error Code

Occurred/Fixed Date

-

Normal

-

High Pressure&Low Pressure Data

Discharge Pipe&Suction Pipe Temp Data

Main components operation time from Nov 1Jan 31

Items

Accumulated

operation hrs

Onsite inspection

recommendation

Every 10000 hrsOU1 INV compressor

1851 hrs Every 6500 hrs

OU1 STD compressor248 hrs

OU1 fan motor

1851 hrs Every 10000 hrs

02/15/14

04/02/14

02/16/16

OU2 INV compressor1944 hrs Every 6500 hrs

OU2 STD compressor372 hrs

OU2 fan motor

1944 hrs

-20

30

80

130

180

230

280

11/01/1511/14/15

11/27/1512/10/15

12/23/1501/05/16

01/18/1601/31/16

℉

Max Discharge TempDischarge Temp Limit

Suction TempSuction Temp Limit

1851hrs

248hrs

1851hrs 1944hrs

372hrs

1944hrs

OU1 INV

compressorOU1 STD

compressorOU1 fan

motor

OU2 INV

compressorOU2 STD

compressorOU2 fan

motor

5000hrs

0

100

200

300

400

500

600

11/01/1511/14/15

11/27/1512/10/15

12/23/1501/05/16

01/18/1601/31/16

PSI

Max High PSIHigh PSI Limit

Min Low PSILow PSI Limit

4

Malfunction Information & Malfunction Predictions

System

Current ConditionComments

Status/Recommendations

CU-1

Normal

As of Feb 16

System

Current ConditionComments

Status/Recommendations

CU-2

Normal

As of Feb 16

System

Current ConditionComments

Status/Recommendations

CU-3

Normal

As of Feb 16

System

Current ConditionComments

Status/Recommendations

CU-4

Normal

As of Feb 16

System

Current ConditionComments

Status/Recommendations

CU-5

Normal

As of Feb 16

Meaning of Error Code

Meaning / Method of Malfunction Detection

A3Indoor Unit: Drain Level Control System Abnormality

By float switch OFF detection

A7Indoor Unit: Malfunction of Swing Flap Motor

Utilizes ON/OFF of the limit switch when the motor turns.

Power consumption results::::::

CU-114,105 KWh

A3 - Drain water level line error

Occurred Nov 19.

13,691 KWh9,975 KWh

Occurred Nov 6.

14,355 KWh14,178 KWh

01 Nov 2015 to

-

31 Jan 2016

Summary of operation report

-

CU-2

A3 - Drain water level line error

CU-4

66,304 KWh

CU-3

CU-5

Total power consumption in entire

-

-

A7 - Swing motor malfunction

Occurred during Nov 1 to Jan 28 occasionally.

Error code

Note: Below unit have communication failure to D-net system. Please check "Air-net address" for this unit and let resumes monitoring.

* FXHQ12MVJU/E002110, CU4 system, RM 312 : Air-net address for this indoor unit : 23

66,304 KWh

14,105 KWh 14,178 KWh

14,355 KWh 9,975 KWh

13,691 KWh

0 KWh10,000 KWh

20,000 KWh30,000 KWh

40,000 KWh50,000 KWh

60,000 KWh70,000 KWh

Total:CU-1

CU-2

CU-3

CU-4

CU-5

kWh

CU-1

21%

CU-2

21%

CU-3

22%

CU-4

15%

CU-5

21% Usage Ratio

* This power consumption is calculated based on running data on D-net and actual amount and usage should be not the same.

2

Malfunction Information & Malfunction Predictions

System Current Condition Comments Status/RecommendationsCU-1 Normal

As of Feb 16System Current Condition Comments Status/RecommendationsCU-2 Normal

As of Feb 16System Current Condition Comments Status/RecommendationsCU-3 Normal

As of Feb 16System Current Condition Comments Status/RecommendationsCU-4 Normal

As of Feb 16System Current Condition Comments Status/RecommendationsCU-5 Normal

As of Feb 16

Meaning of Error CodeMeaning / Method of Malfunction Detection

A3 Indoor Unit: Drain Level Control System AbnormalityBy float switch OFF detection

A7 Indoor Unit: Malfunction of Swing Flap MotorUtilizes ON/OFF of the limit switch when the motor turns.

Power consumption results

::::::

CU-1 14,105 KWh

A3 - Drain water level line error Occurred Nov 19.

13,691 KWh9,975 KWh

Occurred Nov 6.

14,355 KWh14,178 KWh

01 Nov 2015 to

-

31 Jan 2016Summary of operation report

-

CU-2

A3 - Drain water level line error

CU-4

66,304 KWh

CU-3

CU-5

Total power consumption in entire

--

A7 - Swing motor malfunction Occurred during Nov 1 to Jan 28 occasionally.

Error code

Note: Below unit have communication failure to D-net system. Please check "Air-net address" for this unit and let resumes monitoring. * FXHQ12MVJU/E002110, CU4 system, RM 312 : Air-net address for this indoor unit : 23

66,304 KWh

14,105 KWh 14,178 KWh 14,355 KWh 9,975 KWh

13,691 KWh

0 KWh

10,000 KWh

20,000 KWh

30,000 KWh

40,000 KWh

50,000 KWh

60,000 KWh

70,000 KWh

Total: CU-1 CU-2 CU-3 CU-4 CU-5

kWh

CU-1 21%

CU-2 21%

CU-3 22%

CU-4 15%

CU-5 21%

Usage Ratio

* This power consumption is calculated based on running data on D-net and actual amount and usage should be not the same.

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Based on local weather data and humidity levels, and current building conditions, the optimum energy-saving strategy is calculated and implementedfor the systems.

Daikin continuously monitors the operation of the equipment and building comfort levels. D-NET examines the data and recommends ways to further improve performance, based on accumulated history.

Every building is different. Based upon your location, local weather conditions, and building characteristics, D-NET adjusts your system’s operation to help maximize efficiency.

The control levels can be selected according to businesses and applications. [(1) Standard (2) Comfort priority (3) Saving energy priority]

Control levels can be selected according to business schedules, priorities and applications — and easily changed at any time.

Comfort attained

D-NET helps save energy.

VRV System Operation ReportReport on energy-saving

strategies, results, and recommendations.

Weather Forecast Information

Perceived temperature levels are higher. In these conditions, systems will be optimized to reduce

humidity and perceived temperature for building comfort.

Systems can be dynamically controlled to reduce energy

consumption, while occupant comfort levels are maintained.

Energy-saving control operation OFF to give priority to comfort.

Energy-saving control operation ON while maintaining comfort.

Hot and Humid Hot and Dry

Comfort attained

5D-NET Network Servicing System

Used primarily in mid-size or smaller buildings. Controls function of outdoor VRV systems. Easy installation and programming.

Control up to 20 outdoor VRV systems (with optional Plus Adaptor).

Control up to 80 outdoor units and up to 1024 indoor units.

Other Daikin products (via interface). All VRV systems sold in North America are supported.

i-touch controller type

SystemType

Features

EnergyStrategies

Number of Systems

Refrigerant temperature control.

Capacity save control.

Peak power cut control.

Used in larger buildings, can control up to64 groups (10 outdoor units).

Controls functions of the VRV system consisting ofthe outdoor units, indoor units and air handlers.

Controls up to 512 indoor unit groups with theuse of 7 iTM Plus Adapters.

D-NET provides energy-saving strategies matched to your system and controller.

6

.

Typical outdoorunit failurepredicting item

n

n

Typical indoor unit (cassette) monitoring pointsPredicting

items

Predictingitems

Point of diagnosis

Dirty heat exchanger

Dirty air filter

High pressure, low pressure, heat excharger temperature, suction pipe temperature, and electronic expansion valve opening

Point of diagnosis

High pressure, low pressure, heat excharger temperature, suction pipe temperature, and electronic expansion valve opening

– The predicting items all indicate typical examples.

– The points of diagnosis indicate typical points for failure prediction.

Predicting

items

Predicting

items

Predicting

items

Predicting

itemsPoint of diagnosis

Point of diagnosis

Point of diagnosis

Point of diagnosis

Malfunction of fan

High pressure, low pressure, outdoor temperature, fan, and operation protection control signal

Malfunction of compressor

High pressure, low pressure, discharge pipe temperature, suction pipe temperature, inverter frequency, and inverter current

Dirty heat exchanger

High pressure, low pressure, outdoor temperature, heat exchanger temperature, and operation protection control signal

High pressure, low pressure, discharge pipe temperature, suction pipe temperature, electronic expansion valve opening, and operation protection control signal

1

2

3

4

5

6

Refrigerantcharge

accuracy

Daikin’s monitoring capability analyzes patterns of operational data. As a result, D-NET can often anticipate issues before failure occurs. This ensures equipment downtime is minimized, and maintenance effectiveness is increased.

D-NET collects HVAC equipment data continuously to help ensure comfort is maintained and the system runs to its optimal capability.

Daikin’sMonitoring

Center

Servicealert

Contactservice

technician

Remote maintenance-function monitoring.

7D-NET Network Servicing System

Improve energy-savings with recommended maintenance

Energy-savings through D-NET

Preventing unnecessary load on equipment components

Reduce energyconsumption by up to 20%

Values estimated using a 10-Ton VRV

Ou

tdo

or

tem

per

atu

re (

°F)

Po

wer co

nsu

mp

tion

(kWh

)

Date

Outdoor temperature

Power consumption

Power consumption reduced (15%)

6/28

110

100

90

80

70

607/8 7/16 7/24 8/1 8/9 8/19 8/27 9/6

Estimated power consumption without cleaning the

heat exchangers

Consultation of scope of work

with the customer.

Predicting contamination of outdoor unit heat exchangers Cleaned heat exchangers

Cases of trouble prediction

Prediction PredictionPrediction

Crankshaftjournal Bearing metal LubricantMovable scroll (compression functional part)

Stationary and movable scrolls (compression functional parts)

Mirror surface

Wear-out or seizure

Enlarged

Enlarged

Proper operation

Refrigerant-shortage operation continued

Proper operation

Overloaded operation continued

Proper operation

Wet operation continued

Sludge (carbide) deposits

Preventing a wet operation run that would be caused by dirty indoor-unit air filter (during cooling)

Preventing a power-wasting, high-stress operation that would be caused by dirty indoor-unit heat exchanger (during cooling)

Preventing an unexpected stop and compressor damage that would be caused by refrigerant shortage (out of gas)

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To order D-NET or for more information, please contact your local Daikin representative or distributor.

*compared to systems not connected to D-NET

D-NET protects your system with recommended maintenance solutions.

*

CB-DNET 6-17

About Daikin:

Daikin Industries, Ltd. (DIL) is a global Fortune 1000 company, which celebrated its 90th anniversary in May 2014.

The company is recognized as one of the largest HVAC (Heating, Ventilating, Air Conditioning) manufacturers in the world. DIL is

primarily engaged in developing indoor comfort products, systems, and refrigeration products for residential, commercial, and industrial applications. Its consistent success is derived, in part, from a focus on innovative, energy-efficient, and premium quality indoor climate and comfort management solutions.

Contact your local Daikin representative or distributor for more information.

COMMERCIAL ■ RENOVATION ■ NEW CONSTRUCTION

Before purchasing this appliance, please read important information from your retailer regarding estimated annual energy consumption, and operating cost, and energy efficiency rating.

2017

• Specifications, designs, and other content in this brochure are current as of January 2017 but subject to change without notice.