Mitsubishi Electric CITY MULTI Product guide

AIR CONDITIONING SYSTEMS

MODEL

PQHY-P72-360T(S)LMU-A1

PQHY-P72-360Y(S)LMU-A1

PQHY-P72-360Z(S)LMU-A1

PQRY-P72-336T(S)LMU-A1

PQRY-P72-336Y(S)LMU-A1

PQRY-P72-336Z(S)LMU-A1

-For ground source application

MEES19K187

Preface Preface

Preface

DATA BOOK describes the technical specifications of MITSUBISHI ELECTRIC Corp.'s CITYMULTI air conditioning system

products.

In this DATA BOOK for ground source application, the information on water-cooled heat source unit PQHY-P-T(S)LMU-A1/PQHY-

P-Y(S)LMU-A1/PQHY-P-Z(S)LMU-A1/PQRY-P-T(S)LMU-A1/PQRY-P-Y(S)LMU-A1/PQRY-P-Z(S)LMU-A1 with the connection of

standard CITY MULTI indoor unit series is specified.

For capacity tables with indoor units, refer to the DATA BOOK for standard CITY MULTI units.

We recommend DATA BOOK users to read carefully and take advantage of all the contents inside to design the CITY MULTI air

conditioning system and/or to prepare documents for promotions.

Along with the DATA BOOK, MITSUBISHI ELECTRIC provides a Design-Tool software to ensure the users to design the system

correctly and simplify the calculations.

Please contact your local distributor for this software.

Please be notified that specifications are subject to change without notice due to continual improvements of the product.

For any inquiries, please contact your local distributor.

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CITY MULTI

Databook for ground source application

MEES19K187

HEAT SOURCE UNITS

BRINE INFORMATION

GENERAL LINE-UP

WY-SERIES............................................................................................................................................ 1

WY-SERIES-575V .................................................................................................................................. 99

WR2-SERIES.......................................................................................................................................... 165

WR2-SERIES-575V ................................................................................................................................ 261

SYSTEM DESIGN

SYSTEM DESIGN WY-SERIES ............................................................................................................. 325

SYSTEM DESIGN WR2-SERIES ........................................................................................................... 337

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MEES19K187

BRINE INFORMATION BRINE INFORMATION

I.BRINE INFORMATION

Brine freezing temperature

Brine concentration is decided by the freezing temperature. First, it is necessary to decide the freezing temperature and find

out brine concentration which will correspond to the freezing temperature.

The graph was referred from chemical company data.

But Freezing Temperature condition will be slightly different based on each company.

Please confirm detail data to the chemical company directly.

It is recommended to set the brine concentration to a percentage that will keep the freezing temperature at -15°C or less.

0 10 20 30 40 50 60 70 80 90 100

°C

-10

-20

-30

-40

-50

°F

-4

-22

-40

-58

Brine concentration [wt%]

Freezing Temperature

Propylene Glycol

Ethylene Glycol

Methanol

0 10 20 30 40 50 60 70 80 90 100

°C

-10

-20

-30

-40

-50

Brine concentration [wt%]

°F

-4

-22

-40

-58

Freezing Temperature

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MEES19K187

BRINE INFORMATION BRINE INFORMATION

Capacity correction by brine concentration (For heat source unit)

Depending on the freezing temperature and brine concentration, the ratio of unit capacity will change.

As shown in the line diagram, higher the brine concentration, the lower the ratio of capacity becomes.

Cooling

Brine concentration [wt%]

Ratio of cooling capacity

0.95

0.9

0.85

0% 20% 40% 60% 80% 100%

PQHY

PQRY

Ethylene Glycol

Propylene Glycol

IU IU

Brine concentration [wt%]

Ratio of cooling capacity

0.95

0.9

0.85

0% 20% 40% 60% 80% 100%

Methanol

Ethylene Glycol

Propylene Glycol

Brine concentration [wt%]

Ratio of cooling input

1.30

1.25

1.20

1.15

1.10

1.05

1.00

0% 20% 40% 60% 80% 100%

Brine concentration [wt%]

Ratio of cooling input

1.30

1.25

1.20

1.15

1.10

1.05

1.00

0% 20% 40% 60% 80% 100%

Methanol

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MEES19K187

BRINE INFORMATION BRINE INFORMATION

Heating

Ethylene Glycol

Propylene Glycol

Brine concentration [wt%]

Ratio of heating capacity

1.00

0.95

0.90

0.85

0.80

0.75

0.70

0% 20% 40% 60% 80% 100%

Brine concentration [wt%]

Ratio of heating capacity

1.00

0.95

0.90

0.85

0.80

0.75

0.70

0% 20% 40% 60% 80% 100%

Methanol

Ethylene Glycol

Propylene Glycol

Brine concentration [wt%]

Ratio of heating input

0.95

0.9

0.85

0.8

0% 20% 40% 60% 80% 100%

Brine concentration [wt%]

Ratio of heating input

0.95

0.9

0.85

0.8

0% 20% 40% 60% 80% 100%

Methanol

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MEES19K187

BRINE INFORMATION BRINE INFORMATION

Pressure drop correction by brine concentration (For heat source unit)

Also, water pump is selected by the ratio of pressure drop of depending on the brine concentration.

Cooling

* Please supply strainer on site.

Brine concentration [wt%]

Inlet-water temp. [°C] [°F]

Ratio of pressure drop

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

-5°C

0°C

5°C

10°C

23°F

32°F

41°F

50°F

0% 20% 40% 60% 80% 100%

Ethylene Glycol (cooling)

Brine concentration [wt%]

Ratio of pressure drop

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

-5°C

0°C

5°C

10°C

0% 20% 40% 60% 80% 100%

Propylene Glycol (cooling)

Inlet-water temp. [°C] [°F]

23°F

32°F

41°F

50°F

Inlet-water temp. [°C] [°F]

Brine concentration [wt%]

Ratio of pressure drop

1.3

1.2

1.1

1.0

0.9

0.8

0.7

-5°C

0°C

10°C

23°F

32°F

50°F

0% 20% 40% 60% 80% 100%

Methanol (cooling)

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MEES19K187

BRINE INFORMATION BRINE INFORMATION

Heating

* Please supply strainer on site.

Ethylene Glycol (heating)

Brine concentration [wt%]

Ratio of pressure drop

26.0

21.0

16.0

11.0

6.0

1.0

-5°C

0°C

5°C

10°C

0% 20% 40% 60% 80% 100%

Inlet-water temp. [°C] [°F]

23°F

32°F

41°F

50°F

Propylene Glycol (heating)

Brine concentration [wt%]

Ratio of pressure drop

26.0

21.0

16.0

11.0

6.0

1.0

-5°C

0°C

5°C

10°C

0% 20% 40% 60% 80% 100%

Inlet-water temp. [°C] [°F]

23°F

32°F

41°F

50°F

Inlet-water temp. [°C] [°F]

Brine concentration [wt%]

Ratio of pressure drop

2.0

1.8

1.6

1.4

1.2

1.0

-5°C

0°C

10°C

23°F

32°F

50°F

0% 20% 40% 60% 80% 100%

Methanol (heating)

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MEES19K187

GENERAL LINE-UP GENERAL LINE-UP

I.GENERAL LINE-UP

144K

PQHY-P144TLMU-A1

192K

PQHY-P192TLMU-A1

168K

PQHY-P168TLMU-A1

72K

PQHY-P72TLMU-A1

96K

PQHY-P96TLMU-A1

120K

PQHY-P120TLMU-A1

Type(BTU/h)

Model Name

216K

PQHY-P216TLMU-A1

240K

PQHY-P240TLMU-A1

Type(BTU/h)

Model Name

144K

PQHY-P144TSLMU-A1

192K

PQHY-P192TSLMU-A1

168K

PQHY-P168TSLMU-A1

Type(BTU/h)

Model Name

216K

PQHY-P216TSLMU-A1

240K

PQHY-P240TSLMU-A1

Type(BTU/h)

Model Name

Type(BTU/h)

Model Name

144K

PQHY-P144YLMU-A1

192K

PQHY-P192YLMU-A1

168K

PQHY-P168YLMU-A1

72K

PQHY-P72YLMU-A1

96K

PQHY-P96YLMU-A1

120K

PQHY-P120YLMU-A1

Type(BTU/h)

Model Name

216K

PQHY-P216YLMU-A1

240K

PQHY-P240YLMU-A1

Type(BTU/h)

Model Name

144K

PQHY-P144YSLMU-A1

192K

PQHY-P192YSLMU-A1

168K

PQHY-P168YSLMU-A1

Type(BTU/h)

Model Name

216K

PQHY-P216YSLMU-A1

240K

PQHY-P240YSLMU-A1

Type(BTU/h)

Model Name

288K

PQHY-P288TSLMU-A1

336K

PQHY-P336TSLMU-A1

312K

PQHY-P312TSLMU-A1

Type(BTU/h)

Model Name

360K

PQHY-P360TSLMU-A1

Type(BTU/h)

Model Name

288K

PQHY-P288YSLMU-A1

336K

PQHY-P336YSLMU-A1

312K

PQHY-P312YSLMU-A1

Type(BTU/h)

Model Name

360K

PQHY-P360YSLMU-A1

Type(BTU/h)

Model Name

Type(BTU/h)

Model Name

Water Cooled WY-Series-208-230V Water Cooled WY-Series-460V

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MEES19K187

GENERAL LINE-UP GENERAL LINE-UP

144K

PQHY-P144ZLMU-A1

192K

PQHY-P192ZLMU-A1

168K

PQHY-P168ZLMU-A1

72K

PQHY-P72ZLMU-A1

96K

PQHY-P96ZLMU-A1

120K

PQHY-P120ZLMU-A1

Type(BTU/h)

Model Name

144K

PQHY-P144ZSLMU-A1

192K

PQHY-P192ZSLMU-A1

168K

PQHY-P168ZSLMU-A1

Type(BTU/h)

Model Name

216K

PQHY-P216ZSLMU-A1

240K

PQHY-P240ZSLMU-A1

Type(BTU/h)

Model Name

Type(BTU/h)

Model Name

288K

PQHY-P288ZSLMU-A1

336K

PQHY-P336ZSLMU-A1

312K

PQHY-P312ZSLMU-A1

Type(BTU/h)

Model Name

360K

PQHY-P360ZSLMU-A1

Type(BTU/h)

Model Name

144K

PQRY-P144TLMU-A1

192K

PQRY-P192TLMU-A1

168K

PQRY-P168TLMU-A1

72K

PQRY-P72TLMU-A1

96K

PQRY-P96TLMU-A1

120K

PQRY-P120TLMU-A1

Type(BTU/h)

Model Name

216K

PQRY-P216TLMU-A1

240K

PQRY-P240TLMU-A1

Type(BTU/h)

Model Name

Type(BTU/h)

Model Name

144K

PQRY-P144TSLMU-A1

192K

PQRY-P192TSLMU-A1

168K

PQRY-P168TSLMU-A1

Type(BTU/h)

Model Name

216K

PQRY-P216TSLMU-A1

240K

PQRY-P240TSLMU-A1

Type(BTU/h)

Model Name

288K

PQRY-P288TSLMU-A1

336K

PQRY-P336TSLMU-A1

312K

PQRY-P312TSLMU-A1

Type(BTU/h)

Model Name

Water Cooled WY-Series-575V Water Cooled WR2-Series-208-230V

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