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Water-to-Water Heat Pump

Product Data Catalog for R-410A or R-134a Refrigerant

For Modules: MS010XN-410A, MS015XN-410A, MS020XN-410A, MS030XN-410A, MS050XN-410A, MS070XN-410A MS010AN-134a, MS015AN-134a, MS020AN-134a, MS030AN-134a, MS050AN-134a, MS070AN-134a

Table of Contents Product Introduction......................................................................................................................... 3 Chiller Options................................................................................................................................... 5 General Data..................................................................................................................................... 9 Performance Data for R410A Refrigerant.......................................................................................... 10 Performance Data for R134a Refrigerant.......................................................................................... 16 Electrical Data................................................................................................................................. 18 Controller Schematics...................................................................................................................... 20 Sample Piping Schematics................................................................................................................ 21 Mechanical Specifications................................................................................................................ 22

Model Number Nomenclature Existing MS 50 New MS

X 050

1 X

H N

1

W

1

H

0

R-410A 1

R

0

A

A

-410A

Refrigerant Condenser6 Evaporator5 AHRI Version - if applicable Application4 Voltage3 Configuration2

Module Number (1 - single, 2 - multiple)

AHRI Certified (C - certified, N - Not certified) Compressor Type1 Module Nominal Capacity (10 - 160 tons) Series 1 B: Bristol, C: Trane Cornerstone, R: Bitzer Screw, S: Trane Scroll, T: Danfoss Turbocor, Z: Copeland scroll (old elec), X: Copeland Scroll (ZP), A: Copeland Scroll (ZR) 2 1- Standard, 2- Total access, 3 - Evap extended headers, 4 - Cond extended headers, 5 - Both extended headers, V - others 3 A - 208/3/60, L - 230/3/60, H - 460/3/60, C - 575/3/60, D - 200/3/50, E - 400/3/50, F - 380/3/60, S - 220/230/1/60, V - other 4 C - Single module temp controller, A-Air Cooled split, D - Cond unit, F - Fluid cooler (high temp),H - Heat recovery, R - Heat pump, W - Water cooled 5 A - Brazed SS, B - Brazed SMO, C- S&T copper, D - S&T cu-Ni, V - Other 6 A - Brazed SS, B - Brazed SMO, C- S&T copper, D - S&T cu-Ni, E - Double wall brazed, V - Other

2

Water-to-Water Heat Pump PRODUCT INTRODUCTION Applications for a Multistack Heat Pump • Laundry Water Heating • Swimming Pool Heating • Process Heating and Cooling • Domestic Hot Water • Building Heat • Reheat Coils • VAV Reheat Typical Buildings for Heat Pump Applications • Hotels and Motels • Resorts • Recreational Facilities • Schools • Hospitals • Nursing Homes • Process Cooling and Heating • Data Centers • Call Centers • Campus Cooling and Heating Plants Benefits • Reduced CO2 emissions • Easy retrofit for any mechanical room • Payback in less than three years typically • More efficient than a gas boiler −− Heating COP with R-410A can exceed 5.0 −− Heating COP with R-134a can exceed 3.0 −− Cooling EER with R-410A can exceed 15.0 −− Cooling EER with R-134a can exceed 7.0 • Low load efficiency • Apply for Leed points • ASHRAE 15 / B-52 compliant without monitoring or ventilation equipment.

Easy To Install • Compact modules fit through standard doorways and into elevators • Modules interconnect easily and quickly • All refrigeration systems are factory charged and run tested • Single point power up to 500 MCA Programmable Logic Controller (PLC) System • Manual switch allows redundancy control as each module has a processor allowing it to run even if master controller fails • Display at each module • Remote display option • Optional BAS Interface Design Flexibility • Wide array of module combinations • Install only the capacity required at the time • Variable or constant flow options Simple To Service • Service can often be performed on a convenient, non-emergency basis • Most components are standard, off the shelf design • Able to service one module while system is in operation

Side View Load Water Lockable High Voltage Circuit Breaker Bussbar Duct Low Voltage Controls Compressors

Features • Independent refrigerant circuits Highly Dependable • Multiple independent systems for redundancy • Comprehensive computer monitoring of operations (optional) • Automatic diagnostic recording of fault conditions • Rotates lead compressor every 24 hours Simple To Operate • Large LCD screen displays information in plain English • Simple keypad provides control of unit operations Source/Sink Water

3

Water-to-Water Heat Pump CHILLER OPTIONS

*Standardized drawing of sample customer installation

Standard Modules (Constant Flow Design)

Dimensions Standard

32”

Width (A)

49 1/8”

Depth (B)

64”

Height (C)

4

Water-to-Water Heat Pump CHILLER OPTIONS, Cont’d

*Standardized drawing of sample customer installation

Extended Headers

Dimensions

Variable Flow Design for Load and Source/Sink– Extended Headers on Load Side and Source/Sink Side

SOURCE/SINK LOAD

32”

Width (A)

78 1/8”

Depth (B)

64”

Height (C)

5

Water-to-Water Heat Pump CHILLER OPTIONS, Cont’d

*Standardized drawing of sample customer installation

Variable Flow Design for Load Water Constant Flow for Source/Sink Extended Headers on Load Side

SOURCE/SINK LOAD

Dimensions Extended Headers (Load)

32”

Width (A)

63 5/8”

Depth (B)

64”

Height (C)

6

Water-to-Water Heat Pump CHILLER OPTIONS, Cont’d

*Standardized drawing of sample customer installation

Extended Headers (Source/Sink)

Dimensions

Variable Flow Design for Source/Sink Water Constant Flow for Load Water Extended Headers on Source/Sink Side

SOURCE/SINK LOAD

32”

Width (A)

63 5/8”

Depth (B)

64”

Height (C)

7

Water-to-Water Heat Pump CHILLER OPTIONS, Cont’d

Variable Flow* or Constant Flow for Source/Sink and/or Load Water Total Access Design Standardized drawing of sample customer installation *Required optional actuators.

Width (A)

56”

56”

Depth (B)

67”

67”

Height (C)

Dimensions

34”

67”

32”

56”

MS050X

34”

MS010X, MS015X, MS020X, MS030X MS070X

8

Water-to-Water Heat Pump GENERAL DATA MS010* Compressor Type

Scroll

General Data Table MS015* MS020* MS030* Scroll

Dry Weight (lbs. each) Normal Capacity (tons each) Quantity Oil Charge (pints)

Scroll

89 135 5 8.5 2 2 3.5 6.9 Brazed Plate Brazed Plate Evaporator (Brazed Plate) Weight (lbs. each) 80 80 Water Storage (gallons each) 1.9 1.9 Circuit Configuration Dual Dual Quantity 1 1 Header System (gallons leaving water) 6 6 Brazed Plate Brazed Plate Condenser Weight (lbs. each) 90 90 Water Storage (gal. each) 2.4 2.4 Circuit Configuration Dual Dual Quantity 1 1 Header System (gallons entering water) 6 6 R410A/R134a R410A/R134a Refrigerant Type Charge (lbs./circuit) 6.5 6.5 Number of Circuits 2 2 1110 1200 Operating Weight (lbs.) 950 1040 Shipping Weight (lbs.)

135 10 2 6.9 Brazed Plate 80 1.9 Dual 1 6 Brazed Plate 90 2.4 Dual 1 6 R410A/R134a 8 2 1200 1040

Scroll

MS050*

MS070*

MS085*

Scroll

Scroll

Scroll

146 353 390 15 25 32 2 2 2 6.9 14.4 13.3 Brazed Plate Brazed Plate Brazed Plate 105 180 243 2.9 4.8 7.3 Dual Dual Dual 1 1 1 6 6 6 Brazed Plate Brazed Plate Brazed Plate 135 220 313 4.1 6.6 10.1 Dual Dual Dual 1 1 1 6 6 6 R410A/R134a R410A/R134a R410A/R134a 12 18 24 2 2 2 1625 2000 2200 1450 1730 1900

Call Factory Brazed Plate

Call Factory

Brazed Plate

Call Factory

R410A/R134a Call Factory Call Factory Call Factory

*Covers both R-410A and R-134a refrigerants.

Multistack Glycol Solution Information Low Temperature Operation with Glycol In chilled water systems where water temperatures of less than 40°F and ambient temperatures of 32° F are likely to occur, it is necessary to add a glycol-based heat transfer fluid to the system. Both Ethylene and Propylene are available and they offer the same basic freeze and corrosion protection although there are performance differences in the solutions. Note: 1. Ethylene and propylene glycol ratings are outside the scope of AHRI Standard 550/590 Certifications. 2. The effect of glycol in the condenser is negligible as it tends to mirror the properties of water as its temperature increases. No emphasis on derate on condenser capacity with glycol is necessary in the selection process.

ETHYLENE GLYCOL Ethylene % 10 20 30 40 50

Freeze Point °F °C 26 18 7 -7 -28

-3.3 -7.8 -13.9 -21.7 -33.3

Capacity

Power

Flow

Pressure Drop

0.996 0.986 0.978 0.966 0.955

0.999 0.998 0.996 0.993 0.991

1.035 1.06 1.092 1.131 1.182

1.096 1.219 1.352 1.53 1.751

PROPYLENE GLYCOL Propylene % 10 20 30 40 50

Freeze Point °F °C 26 19 9 -5 -27

-3 -7 -13 -21 -33

Capacity

Power

Flow

Pressure Drop

0.987 0.975 0.962 0.946 0.929

0.992 0.985 0.978 0.971 0.965

1.01 1.028 1.05 1.078 1.116

1.068 1.147 1.248 1.366 1.481 9

Water-to-Water Heat Pump HEATING PERFORMANCE: R-410A REFRIGERANT

MS010XN Leaving Source Water °F 30°F 35°F 40°F 45°F 50°F 55°F MS015XN Leaving Source Water °F 30°F 35°F 40°F 45°F 50°F 55°F MS020XN Leaving Source Water °F 30°F 35°F 40°F 45°F 50°F 55°F MS030XN Leaving Source Water °F 30°F 35°F 40°F 45°F 50°F 55°F

Power (kW) 11.5 11.3 11.2 11.1 11.0 10.9 Power (kW) 15.8 15.8 15.8 15.8 15.9 15.9 Power (kW) 20.8 20.7 20.6 20.6 20.6 20.6 Power (kW) 29.8 29.9 30.0 30.2 30.4 30.7

110°F Heat (MBH) 116.7 126.9 137.7 149.4 161.9 175.6 110°F Heat (MBH) 173.4 187.1 202.1 218.5 236.3 255.9 110°F Heat (MBH) 229.6 249.6 271.1 294.7 319.7 346.7 110°F Heat (MBH) 343.3 371.9 402.9 436.5 472.7 511.8

LEAVING HOT WATER

Heat COP 3.0 3.3 3.6 3.9 4.3 4.7 Heat COP 3.2 3.5 3.7 4.0 4.4 4.7 Heat COP 3.2 3.5 3.8 4.2 4.5 4.9 Heat COP 3.4 3.6 3.9 4.2 4.6 4.9

120°F Power Heat (kW) (MBH) 12.8 112.3 12.7 122.0 12.6 132.4 12.4 143.5 12.3 155.4 12.2 168.3 120°F Power Heat (kW) (MBH) 17.7 170.2 17.7 183.1 17.7 197.1 17.7 212.3 17.7 228.9

120°F Power Heat (kW) (MBH) 23.8 223.9 23.6 242.0 23.5 262.0 23.4 283.6 23.3 307.3 23.3 332.7 120°F Power Heat (kW) (MBH) 33.3 334.4 33.4 360.9 33.5 389.8 33.7 420.9 33.8 454.7 34.1 491.3

Heat COP 2.6 2.8 3.1 3.4 3.7 4.1 Heat COP 2.8 3.0 3.3 3.5 3.8 Heat COP 2.8 3.0 3.3 3.6 3.9 4.2 Heat COP 2.9 3.2 3.4 3.7 3.9 4.2

125°F Power Heat (kW) (MBH) 13.5 110.0 13.4 119.6 13.3 129.7 13.2 140.5 13.0 152.0 12.9 164.5 125°F Power Heat (kW) (MBH) 18.8 168.6 18.8 181.1 18.8 194.6 18.8 209.3 18.8 225.2

125°F Power Heat (kW) (MBH) 25.5 221.8 25.3 238.7 25.1 257.7 25.0 278.4 24.9 301.0 24.8 325.6 125°F Power Heat (kW) (MBH) 35.3 330.0 37.5 350.2 35.5 383.2 35.6 413.3 35.8 445.7 36.0 480.7

Heat COP 2.4 2.6 2.9 3.1 3.4 3.7 Heat COP 2.6 2.8 3.0 3.3 3.5 Heat COP 2.5 2.8 3.0 3.3 3.5 3.8 Heat COP 2.7 2.9 3.2 3.4 3.7 3.9

130°F Power Heat (kW) (MBH) 14.3 107.7 14.2 117.1 14.1 126.9 14.0 137.5 13.8 148.7 13.7 160.8 130°F Power Heat (kW) (MBH) 19.9 167.0 19.9 179.1 19.9 192.2 19.9 206.3 19.9 221.7 130°F Power Heat (kW) (MBH) 27.3 220.0 27.0 236.0 26.8 253.6 26.6 273.3 26.5 294.9 26.4 318.4 130°F Power Heat (kW) (MBH) 37.4 325.9 37.5 350.2 37.6 37.6 37.7 405.4 35.8 436.6 38.0 470.3

Heat COP 2.2 2.4 2.6 2.9 3.2 3.4 Heat COP 2.5 2.6 2.8 3.0 3.3 Heat COP 2.4 2.6 2.8 3.0 3.3 3.5 Heat COP 2.6 2.7 2.9 3.2 3.4 3.6

135°F Power Heat (kW) (MBH) 15.2 105.4 15.1 114.5 15.0 124.2 14.8 134.4 14.7 145.3 14.5 157.0 135°F Power Heat (kW) (MBH) 21.2 165.3 21.2 177.0 21.2 189.7 21.1 203.4 21.1 218.2 135°F Power Heat (kW) (MBH) 29.3 218.9 28.9 233.5 28.6 250.0 28.4 268.4 28.3 288.9 28.1 311.3 135°F Power Heat (kW) (MBH) 39.6 321.8 39.7 345.0 39.8 370.2 39.9 397.7 40.0 427.4 40.2 459.7

Heat COP 2.0 2.2 2.4 2.7 2.9 3.2 Heat COP 2.3 2.5 2.6 2.8 3.0 Heat COP 2.2 2.4 2.6 2.8 3.0 3.2 Heat COP 2.4 2.5 2.7 2.9 3.1 3.4

For non-published performance ranges, please contact Multistack.

10

Water-to-Water Heat Pump HEATING PERFORMANCE: R-410A REFRIGERANT

MS050XN Leaving Source Power Water °F (kW) 30°F 46.1 35°F 46.3 40°F 46.6 45°F 46.9 50°F 47.2 55°F 47.5 MS070XN Leaving Source Power Water °F (kW) 30°F 59.7 35°F 60.0 40°F 60.4 45°F 60.8 50°F 61.3 55°F 61.9 MS085XN Leaving Source Power Water °F (kW) 30°F 35°F 40°F 45°F 50°F 55°F

110°F Heat (MBH) 558.1 605.5 656.7 712.5 773.4 839.4 110°F Heat (MBH) 729.8 792.5 859.9 932.8 1011.5 1096.0 110°F Heat (MBH)

LEAVING HOT WATER

Heat COP 3.6 3.8 4.1 4.5 4.8 5.2 Heat COP 3.6 3.9 4.2 4.5 4.8 5.2 Heat COP

120°F Power Heat (kW) (MBH) 51.4 544.6 51.7 588.6 52.0 636.4 52.3 688.5 52.6 745.1 52.8 806.4 120°F Power Heat (kW) (MBH) 66.8 711.2 67.1 770.2 67.4 833.5 67.8 901.8 68.3 974.9 68.9 1053.2 120°F Power Heat (kW) (MBH)

Heat COP 3.1 3.3 3.6 3.9 4.2 4.5 Heat COP 3.1 3.4 3.6 3.9 4.2 4.5 Heat COP

125°F Power Heat (kW) (MBH) 54.3 538.3 54.7 580.7 55.0 626.5 55.2 676.7 55.5 731.2 55.8 790.3 125°F Power Heat (kW) (MBH) 70.7 702.3 71.0 759.4 71.3 820.7 71.7 886.2 72.2 956.8 72.7 1032.4 125°F Power Heat (kW) (MBH)

Heat COP 2.9 3.1 3.3 3.6 3.9 4.2 Heat COP 2.9 3.1 3.4 3.6 3.9 4.2 Heat COP

130°F Power Heat (kW) (MBH) 57.4 532.2 57.8 572.8 58.1 617.1 58.4 665.2 58.7 717.6 58.9 774.6 130°F Power Heat (kW) (MBH) 74.8 693.3 75.1 748.4 75.4 807.5 75.8 870.8 76.3 938.9 76.8 1011.7 130°F Power Heat (kW) (MBH)

Heat COP 2.7 2.9 3.1 3.3 3.6 3.9 Heat COP 2.7 2.9 3.1 3.4 3.6 3.9 Heat COP

135°F Power Heat (kW) (MBH) 60.6 526.6 61.0 565.5 61.4 607.8 61.7 653.9 62.0 704.0 62.3 758.7 135°F Power Heat (kW) (MBH) 79.4 79.8 80.2 80.6 81.2

737.7 794.5 855.5 921.1 990.6 135°F Power Heat (kW) (MBH)

Heat COP 2.5 2.7 2.9 3.1 3.3 3.6 Heat COP 2.7 2.9 3.1 3.3 3.6 Heat COP

y

r o t c a Call F

For non-published performance ranges, please contact Multistack.

11

Water-to-Water Heat Pump COOLING PERFORMANCE: R-410A REFRIGERANT

MS010XN Leaving Source Water °F 75°F 80°F 85°F 90°F 95°F 105°F MS015XN Leaving Source Water °F 75°F 80°F 85°F 90°F 95°F 105°F MS020XN Leaving Source Water °F 75°F 80°F 85°F 90°F 95°F 105°F MS030XN Leaving Source Water °F 75°F 80°F 85°F 90°F 95°F 105°F

Power (kW) 7.0 7.4 7.8 8.3 8.7 9.7 Power (kW) 10.3 10.8 11.4 12.1 12.7 14.2 Power (kW) 13.7 14.2 14.8 15.5 16.3 18.3 Power (kW) 20.4 21.3 22.2 23.3 24.4 27.0

42°F Cool (Tons) 11.6 11.3 11.1 10.8 10.5 9.8 42°F Cool (Tons) 16.9 16.4 15.9 15.4 15.0 14.1 42°F Cool (Tons) 23.0 22.5 22.0 21.4 20.8 22.7 42°F Cool (Tons) 33.6 32.9 32.1 31.3 30.5 28.7

LEAVING CHILLED WATER

Cool (EER) 19.9 18.4 17.0 15.7 14.5 12.2

Power (kW) 7.0 7.4 7.8 8.2 8.7 9.7

Cool (EER) 19.7 18.1 16.7 15.4 14.1 11.9

Power (kW) 10.3 10.9 11.5 12.1 12.8 14.2

Cool (EER) 20.2 19.1 17.9 16.6 15.3 14.9

Power (kW) 13.7 14.2 14.8 15.5 16.3 18.2

Cool (EER) 19.8 18.6 17.4 16.1 15.0 12.7

Power (kW) 20.5 21.4 22.3 23.4 24.5 27.1

44°F Cool (Tons) 12.0 11.8 11.5 11.2 10.9 10.3 44°F Cool (Tons) 17.6 17.1 16.6 16.1 15.6 14.7 44°F Cool (Tons) 23.8 23.3 22.8 22.2 21.6 20.2 44°F Cool (Tons) 34.9 34.1 33.4 32.5 31.7 29.8

Cool (EER) 20.7 19.2 17.7 16.4 15.1 12.7 Cool (EER) 20.5 18.8 17.3 16.0 14.7 12.4 Cool (EER) 20.9 19.7 18.5 17.2 15.9 13.3 Cool (EER) 20.4 19.2 17.9 16.7 15.5 13.2

46°F Power Cool (kW) (Tons) 7.0 12.5 7.4 12.3 7.8 12.0 8.2 11.7 8.6 11.4 9.6 10.7 46°F Power Cool (kW) (Tons) 10.3 18.3 10.9 17.7 11.5 17.2 12.1 16.7 12.8 16.2 14.2 15.2 46°F Power Cool (kW) (Tons) 13.7 24.6 14.2 24.2 14.8 23.6 15.5 23.0 16.3 22.4 18.3 21.0 46°F Power Cool (kW) (Tons) 20.7 36.2 21.5 35.4 22.5 34.6 23.5 33.8 24.7 32.9 27.2 31.0

Cool (EER) 21.6 20.0 18.5 17.1 15.8 13.3 Cool (EER) 21.3 19.6 18.0 16.7 15.3 12.9 Cool (EER) 21.5 20.4 19.1 17.8 16.5 13.8 Cool (EER) 21.0 19.7 18.5 17.2 16.0 13.7

48°F Power Cool (kW) (Tons) 6.9 13 7.3 12.7 7.7 12.4 8.2 12.1 8.6 11.8 9.6 11.1 48°F Power Cool (kW) (Tons) 10.3 19.0 10.9 18.5 11.5 17.9 12.1 17.4 12.8 16.9 14.2 15.9 48°F Power Cool (kW) (Tons) 13.7 25.5 14.2 25.0 14.8 24.5 15.5 23.9 16.3 23.3 18.3 21.8 48°F Power Cool (kW) (Tons) 20.9 37.5 21.7 36.7 22.6 35.9 23.7 35.1 24.8 34.1 27.3 32.2

Cool (EER) 22.5 20.9 19.3 17.9 16.5 13.9 Cool (EER) 22.1 20.3 18.7 17.2 15.9 13.4 Cool (EER) 22.2 21.1 19.8 18.4 17.1 14.3 Cool (EER) 21.6 20.3 19.0 17.8 16.5 14.1

50°F Power Cool (kW) (Tons) 6.9 13.5 7.3 13.2 7.7 12.9 8.1 12.6 8.6 12.3 9.5 11.6 50°F Power Cool (kW) (Tons) 10.3 19.8 10.9 19.2 11.5 18.6 12.1 18.1 12.8 17.5 14.2 16.5 50°F Power Cool (kW) (Tons) 13.8 26.3 14.3 25.9 14.9 25.3 15.6 24.8 16.4 24.1 18.3 22.7 50°F Power Cool (kW) (Tons) 21.1 38.9 21.9 38.1 22.8 37.3 23.8 36.4 24.9 35.4 27.4 33.4

Cool (EER) 23.4 21.7 20.2 18.7 17.2 14.6 Cool (EER) 23.0 21.1 19.4 17.9 16.5 13.9 Cool (EER) 22.9 21.7 20.4 19.1 17.7 14.9 Cool (EER) 22.1 20.9 19.6 18.3 17.7 14.6

For non-published performance ranges, please contact Multistack.

12

Water-to-Water Heat Pump COOLING PERFORMANCE: R-410A REFRIGERANT

MS050XN Leaving Source Power Water °F (kW) 75°F 32.6 80°F 34.1 85°F 35.7 90°F 37.5 95°F 39.5 105°F 43.8 MS070XN Leaving Source Power Water °F (kW) 75°F 42.2 80°F 44.1 85°F 46.3 90°F 48.6 95°F 51.1 105°F 53.8 MS085XN Leaving Source Power Water °F (kW) 75°F 80°F 85°F 90°F 95°F 105°F

42°F Cool (Tons) 54.6 53.3 51.9 50.5 49.1 46.0 42°F Cool (Tons) 71.4 69.7 67.9 66.1 64.3 62.4 42°F Cool (Tons)

LEAVING CHILLED WATER

Cool (EER) 20.1 18.8 17.4 16.1 14.9 12.6 Cool (EER) 20.3 18.9 17.6 16.3 15.1 13.9 Cool (EER)

44°F Power Cool (kW) (Tons) 32.8 56.8 34.3 55.4 35.9 54.0 37.7 52.5 39.6 51.0 43.9 47.9 44°F Power Cool (kW) (Tons) 42.5 74.2 44.4 72.4 46.5 70.6 48.8 68.8 51.3 66.8 54.0 64.9 44°F Power Cool (kW) (Tons)

Cool (EER) 20.8 19.4 18.0 16.7 15.5 13.1 Cool (EER) 21.0 19.6 18.2 16.9 15.6 14.4 Cool (EER)

46°F Power Cool (kW) (Tons) 33.0 59.0 34.4 57.6 36.1 56.1 37.8 54.6 39.7 53.1 44.1 49.8 46°F Power Cool (kW) (Tons) 42.8 77.1 44.7 75.3 46.8 73.4 49.1 71.4 51.5 69.5 54.2 67.4 46°F Power Cool (kW) (Tons)

Cool (EER) 21.5 20.1 18.7 17.3 16.0 13.6 Cool (EER) 21.6 20.2 18.8 17.5 16.2 14.9 Cool (EER)

48°F Power Cool (kW) (Tons) 33.2 61.3 34.6 59.8 36.2 58.3 38.0 56.7 39.9 55.1 44.2 51.8 48°F Power Cool (kW) (Tons) 43.1 80.1 45.0 78.2 47.1 76.2 49.3 74.2 51.8 72.1 54.5 70.0 48°F Power Cool (kW) (Tons)

Cool (EER) 22.2 20.7 19.3 17.9 16.6 14.1 Cool (EER) 22.3 20.8 19.4 18.1 16.7 15.4 Cool (EER)

50°F Power Cool (kW) (Tons) 33.4 63.7 34.8 62.1 36.4 60.6 38.1 58.9 40.0 57.3 44.3 53.8 50°F Power Cool (kW) (Tons) 43.5 83.1 45.3 81.1 47.4 79.1 49.6 77.0 52.0 74.9 54.7 72.7 50°F Power Cool (kW) (Tons)

Cool (EER) 22.9 21.4 20.0 18.6 17.2 14.6 Cool (EER) 22.9 21.5 20.0 18.6 17.3 15.9 Cool (EER)

y

r o t c a Call F

For non-published performance ranges, please contact Multistack.

13

Water-to-Water Heat Pump HEATING PERFORMANCE: R134a REFRIGERANT

MS010AN Leaving Source Water °F 55°F 53°F 51°F 49°F 47°F 45°F MS015AN Leaving Source Water °F 55°F 53°F 51°F 49°F 47°F 45°F MS020AN Leaving Source Water °F 55°F 53°F 51°F 49°F 47°F 45°F MS030AN Leaving Source Water °F 55°F 53°F 51°F 49°F 47°F 45°F

LEAVING HOT WATER Power (kW) 9.8 9.8 9.8 9.8 9.7 9.7 Power (kW) 15.3 15.3 15.3 15.3 15.3 15.3 Power (kW) 19.9 19.9 19.9 19.8 19.8 19.7 Power (kW) 25.1 25.1 25.0 25.0 25.0 25.0

140°F Heat (MBH) 108.8 105.2 101.8 98.5 95.3 95.3 140°F Heat (MBH) 151.1 147.1 143.1 139.3 135.6 135.6 140°F Heat (MBH) 197.2 191.2 185.4 179.8 174.4 169.0 140°F Heat (MBH) 269.1 260.7 252.4 244.4 236.5 228.7

Heat COP 3.2 3.1 3.0 3.0 2.9 2.9

Power (kW) 11.0 11.0 11.0 11.0 11.0 11.0

Heat COP 2.9 2.8 2.7 2.7 2.6 2.6

Power (kW) 17.2 17.2 17.2 17.3 17.3 17.3

Heat COP 2.9 2.8 2.7 2.7 2.6 2.5

Power (kW) 22.1 22.0 22.0 22.0 21.9 21.9

Heat COP 3.1 3.0 3.0 2.9 2.8 2.7

Power (kW) 28.1 28.1 28.1 28.1 28.1 28.0

150°F Heat (MBH) 105.9 102.7 99.5 96.5 93.7 93.7 150°F Heat (MBH) 146.2 142.4 138.8 135.2 131.8 131.8 150°F Heat (MBH) 191.1 185.5 180.2 175.0 170.0 165.0 150°F Heat (MBH) 260.3 252.1 244.1 236.3 228.5 221.0

Heat COP 2.8 2.7 2.7 2.6 2.5 2.5 Heat COP 2.5 2.4 2.4 2.3 2.2 2.2 Heat COP 2.5 2.5 2.4 2.3 2.3 2.2 Heat COP 2.7 2.6 2.5 2.5 2.4 2.3

155°F Power Heat (kW) (MBH) 11.7 104.6 11.7 101.5 11.6 98.5 11.6 95.7 11.7 92.9 11.7 90.4 155°F Power Heat (kW) (MBH) 18.3 143.6 18.3 140.0 18.3 136.5 18.4 133.2 18.4 129.9 18.4 129.9 155°F Power Heat (kW) (MBH) 23.2 188.1 23.2 182.8 23.2 177.7 23.1 172.7 23.1 172.7 23.0 163.2 155°F Power Heat (kW) (MBH) 29.8 255.8 29.8 247.7 29.8 239.8 29.7 232.1 29.7 224.4 28.0 221.0

Heat COP 2.6 2.6 2.5 2.4 2.3 2.3 Heat COP 2.3 2.2 2.2 2.1 2.1 2.1 Heat COP 2.4 2.3 2.2 2.2 2.2 2.1 Heat COP 2.5 2.4 2.4 2.3 2.2 2.3

160°F Power Heat (kW) (MBH) 12.4 103.4 12.4 100.4 12.4 97.6 12.4 94.9 12.4 92.3

Heat COP 2.5 2.4 2.3 2.2 2.2

160°F Power Heat (kW) (MBH) 19.5 141.1 19.5 137.7 19.5 134.3 19.5 131.1 19.6 127.9

Heat COP 2.1 2.1 2.0 2.0 1.9

160°F Power Heat (kW) (MBH) 24.4 185.2 24.4 180.1 24.3 175.3 24.3 170.5 24.2 165.9

Heat COP 2.2 2.2 2.1 2.1 2.0

160°F Power Heat (kW) (MBH) 31.6 251.2 31.6 243.3 31.5 235.5 31.5 227.8 31.5 220.2

Heat COP 2.3 2.3 2.2 2.1 2.0

175°F Power Heat (kW) (MBH) 14.7 100.0 14.7 97.5 14.8 95.2 14.9 93.0

Heat COP 2.0 1.9 1.9 1.8

175°F Power Heat (kW) (MBH) 23.5 133.3 23.5 130.3 23.6 127.3 23.6 124.5

Heat COP 1.7 1.6 1.6 1.5

175°F Power Heat (kW) (MBH) 28.3 177.0 28.2 172.7 28.1 168.5 28.1 164.4

Heat COP 1.8 1.8 1.8 1.7

175°F Power Heat (kW) (MBH) 37.6 237.1 37.5 229.4 37.5 221.9 27.5 214.5

Heat COP 1.8 1.8 1.7 1.7

For non-published performance ranges, please contact Multistack.

14

Water-to-Water Heat Pump HEATING PERFORMANCE: R134a REFRIGERANT

MS050AN Leaving Source Power Water °F (kW) 55°F 43.3 53°F 43.2 51°F 43.1 49°F 42.9 47°F 42.8 45°F 42.7 MS070AN Leaving Source Power Water °F (kW) 55°F 55.2 53°F 55.1 51°F 54.9 49°F 54.7 47°F 54.6 45°F 54.4 MS085AN Leaving Source Power Water °F (kW) 55°F 53°F 51°F 49°F 47°F 45°F

140°F Heat (MBH) 511.4 494.8 478.9 463.5 448.7 434.5 140°F Heat (MBH) 662.2 640.6 619.9 599.8 580.6 562.1 140°F Heat (MBH)

LEAVING HOT WATER

Heat COP 3.5 3.4 3.3 3.2 3.1 3.0 Heat COP 3.5 3.4 3.3 3.2 3.1 3.0 Heat COP

150°F Power Heat (kW) (MBH) 48.5 502.5 48.4 486.9 48.4 472.3 48.3 458.1 48.3 444.5 48.3 431.5 150°F Power Heat (kW) (MBH) 61.9 650.1 61.8 630.1 61.7 610.9 61.6 592.4 61.6 574.7 61.6 557.7 150°F Power Heat (kW) (MBH)

Heat COP 3.0 2.9 2.9 2.8 2.7 2.6 Heat COP 3.1 3.0 2.9 2.8 2.7 2.7 Heat COP

155°F Power Heat (kW) (MBH) 51.5 499.1 51.5 484.4 51.5 470.2 51.5 456.7 51.5 443.8 51.6 431.6 155°F Power Heat (kW) (MBH) 65.7 645.5 65.7 626.3 65.7 607.9 65.7 590.3 65.7 573.6 65.8 557.5 155°F Power Heat (kW) (MBH)

Heat COP 2.9 2.8 2.7 2.6 2.5 2.5 Heat COP 2.9 2.8 2.7 2.6 2.6 2.5 Heat COP

160°F Power Heat (kW) (MBH) 54.9 496.7 54.9 482.6 54.9 469.2 55.0 456.5 55.1 444.3

Heat COP 2.7 2.6 2.5 2.4 2.4

160°F Power Heat (kW) (MBH) 70.0 642.1 70.0 623.8 70.1 606.5 70.2 589.7 70.3 573.7

Heat COP 2.7 2.6 2.5 2.5 2.4

160°F Power Heat (kW) (MBH)

Heat COP

175°F Power Heat (kW) (MBH) 67.1 496.3 67.4 484.7 67.7 473.4 68.1 463.0

Heat COP 2.2 2.1 2.0 2.0

175°F Power Heat (kW) (MBH) 85.7 640.8 86.0 625.4 86.4 610.7 86.8 597.0

Heat COP 2.2 2.1 2.1 2.0

175°F Power Heat (kW) (MBH)

Heat COP

y r o t c ll Fa

Ca

For non-published performance ranges, please contact Multistack.

15

Water-to-Water Heat Pump COOLING PERFORMANCE: R134a REFRIGERANT

MS010AN Leaving Source Water °F 100°F 105°F 110°F 115°F 120°F 125°F MS015AN Leaving Source Water °F 100°F 105°F 110°F 115°F 120°F 125°F MS020AN Leaving Source Water °F 100°F 105°F 110°F 115°F 120°F 125°F MS030AN Leaving Source Water °F 100°F 105°F 110°F 115°F 120°F 125°F

Power (kW) 5.6 5.9 6.2 6.5 6.9 7.3 Power (kW) 9.1 9.6 10.2 10.8 11.4 12.1 Power (kW) 11.9 12.6 13.3 14.0 14.8 15.7 Power (kW) 15.1 15.9 16.8 17.7 18.7 19.8

35°F Cool (Tons) 5.6 5.4 5.3 5.1 5.0 4.8 35°F Cool (Tons) 8.2 7.9 7.7 7.4 7.1 6.8 35°F Cool (Tons) 10.0 9.7 9.4 9.0 8.7 8.3 35°F Cool (Tons) 14.3 13.8 13.4 12.9 12.4 11.8

LEAVING CHILLED WATER

Cool (EER) 11.9 11.1 10.2 9.4 8.6 7.9 Cool (EER) 10.8 9.9 9.0 8.2 7.5 6.8 Cool (EER) 10.1 9.3 8.5 7.7 7.0 6.4 Cool (EER) 11.4 10.4 9.6 8.7 7.9 7.2

40°F Power Cool (kW) (Tons) 5.7 6.3 6.0 6.1 6.3 5.9 6.6 5.8 7.0 5.6 7.4 5.4 40°F Power Cool (kW) (Tons) 9.1 9.0 9.6 8.8 10.2 8.5 10.8 8.2 11.4 7.9 12.1 7.6 40°F Power Cool (kW) (Tons) 12.0 11.3 12.7 10.9 13.4 10.5 14.2 10.2 15.0 9.8 15.8 9.4 40°F Power Cool (kW) (Tons) 15.2 15.8 16.0 15.4 16.8 14.9 17.8 14.4 18.8 13.9 19.9 13.3

Cool (EER) 13.2 12.2 11.3 10.4 9.6 8.8 Cool (EER) 11.9 10.9 10.0 9.1 8.3 7.5 Cool (EER) 11.2 10.3 9.4 8.6 7.8 7.1 Cool (EER) 12.5 11.6 10.6 9.7 8.9 8.1

45°F Power Cool (kW) (Tons) 5.8 7.0 6.1 6.8 6.4 6.6 6.7 6.5 7.1 6.3 7.5 6.1 45°F Power Cool (kW) (Tons) 9.2 10.0 9.7 9.7 10.2 9.4 10.8 9.0 11.4 8.7 12.1 8.4 45°F Power Cool (kW) (Tons) 12.2 12.6 12.8 12.2 13.6 11.8 14.3 11.4 15.1 11.0 15.9 10.5 45°F Power Cool (kW) (Tons) 15.3 17.5 16.1 17.0 16.9 16.5 17.9 16.0 18.8 15.5 19.9 14.9

Cool (EER) 14.5 13.5 12.5 11.5 10.6 9.7 Cool (EER) 13.1 12.0 11.0 10.1 9.2 8.3 Cool (EER) 12.4 11.4 10.4 9.5 8.7 7.9 Cool (EER) 13.7 12.7 11.7 10.8 9.9 9.0

50°F Power Cool (kW) (Tons) 5.9 7.9 6.2 7.6 6.5 7.4 6.8 7.2 7.2 7.0 7.6 6.8 50°F Power Cool (kW) (Tons) 9.2 11.0 9.7 10.7 10.2 10.3 10.8 10.0 11.4 9.6 12.1 9.2 50°F Power Cool (kW) (Tons) 12.3 14.0 13.0 13.6 13.7 13.1 14.4 12.7 15.2 12.2 16.0 11.8 50°F Power Cool (kW) (Tons) 15.5 19.3 16.2 18.8 17.1 18.3 18.0 17.7 18.9 17.2 20.0 16.6

Cool (EER) 16.0 14.8 13.7 12.7 11.7 10.7 Cool (EER) 14.4 13.2 12.1 11.1 10.1 9.2 Cool (EER) 13.6 12.6 11.5 10.6 9.7 8.8 Cool (EER) 15.0 13.9 12.9 11.8 10.9 10.0

55°F Power Cool (kW) (Tons) 6.0 8.7 6.3 8.5 6.6 8.3 6.9 8.0 7.3 7.8 7.7 7.6 55°F Power Cool (kW) (Tons) 9.2 12.1 9.7 11.7 10.2 11.4 10.8 10.3 11.4 10.6 12.1 10.2 55°F Power Cool (kW) (Tons) 12.4 15.5 13.0 15.0 13.7 14.6 14.5 14.1 15.3 13.6 16.1 13.1 55°F Power Cool (kW) (Tons) 15.7 21.1 16.4 20.6 17.2 20.1 18.1 19.5 19.1 18.9 20.1 18.3

Cool (EER) 17.6 16.3 15.1 13.9 12.9 11.8 Cool (EER) 15.8 14.5 13.3 11.4 11.1 10.1 Cool (EER) 15.0 13.8 12.7 11.7 10.7 9.8 Cool (EER) 16.2 15.1 14.0 12.9 11.9 10.9

For non-published performance ranges, please contact Multistack.

16

Water-to-Water Heat Pump COOLING PERFORMANCE: R134a REFRIGERANT

MS050AN Leaving Source Power Water °F (kW) 100°F 27.1 105°F 28.5 110°F 30.0 115°F 31.5 120°F 33.2 125°F 35.0 MS070AN Leaving Source Power Water °F (kW) 100°F 34.5 105°F 36.3 110°F 38.1 115°F 40.1 120°F 42.2 125°F 44.6 MS085AN Leaving Source Power Water °F (kW) 100°F 105°F 110°F 115°F 120°F 125°F

35°F Cool (Tons) 25.4 24.7 24.0 23.3 22.6 21.9 35°F Cool (Tons) 33.1 32.2 31.3 30.4 29.5 28.6 35°F Cool (Tons)

LEAVING CHILLED WATER

Cool (EER) 11.2 10.4 9.6 8.9 8.2 7.5 Cool (EER) 11.5 10.6 9.8 9.1 8.4 7.7 Cool (EER)

40°F Power Cool (kW) (Tons) 27.4 28.4 28.9 27.7 30.8 29.1 32.0 26.1 33.6 25.4 35.4 24.6 40°F Power Cool (kW) (Tons) 34.9 37.0 36.8 36.1 38.7 35.1 40.7 34.1 42.8 33.0 45.1 32.0 40°F Power Cool (kW) (Tons)

Cool (EER) 12.4 11.5 11.3 9.8 9.1 8.3 Cool (EER) 12.7 11.8 10.9 10.0 9.3 8.5 Cool (EER)

45°F Power Cool (kW) (Tons) 27.7 31.8 29.2 30.9 30.8 30.1 32.4 29.2 34.0 28.4 35.8 27.5 45°F Power Cool (kW) (Tons) 35.2 41.4 37.2 40.3 39.2 39.2 41.2 38.1 43.4 36.9 45.6 35.8 45°F Power Cool (kW) (Tons)

Cool (EER) 13.8 12.7 11.7 10.8 10.0 9.2 Cool (EER) 14.1 13.0 12.0 11.1 10.2 9.4 Cool (EER)

50°F Power Cool (kW) (Tons) 27.8 35.4 29.4 34.4 31.1 33.5 32.8 32.6 34.5 31.6 36.3 30.7 50°F Power Cool (kW) (Tons) 35.5 46.1 37.5 44.9 39.6 43.7 41.7 42.4 43.9 41.2 46.2 40.0 50°F Power Cool (kW) (Tons)

Cool (EER) 15.3 14.0 12.9 11.9 11.0 10.2 Cool (EER) 15.7 14.4 13.2 12.2 11.3 10.4 Cool (EER)

55°F Power Cool (kW) (Tons) 27.7 39.3 29.6 38.3 31.3 37.2 33.1 36.2 34.8 35.2 36.7 34.1 55°F Power Cool (kW) (Tons) 35.3 51.2 37.6 49.9 39.9 48.5 42.1 47.2 44.4 45.8 46.7 44.5 55°F Power Cool (kW) (Tons)

Cool (EER) 17.0 15.5 14.3 13.1 12.1 11.2 Cool (EER) 17.4 15.9 14.6 13.4 12.4 11.4 Cool (EER)

y

r o t c a Call F

For non-published performance ranges, please contact Multistack.

17

Water-to-Water Heat Pump ELECTRICAL DATA External Input/Output Connections

18

Water-to-Water Heat Pump ELECTRICAL DATA, Cont’d. System Wire & Fuse Sizing Specifications (Applicable codes may require different wire sizing)

1. Compressor Rated Load Amps (RLA) and Locked Rotor Amps (LRA) Data: RLA/LRA R410A

VOLTAGE

208

230

460

R134a

575

VOLTAGE

208

230

460

575

23.5/128

21/128

10.2/63

8.2/49

MS010XN

22.8/123

20.6/123

10.3/62

8.4/50

MS010AN

MS015XN

36.5/225

33/225

16.5/114

13/80

MS015AN

38.7/225

35/225

17.5/114

14/80

MS020XN

44/239

40/239

20/125

16/80

MS020AN

44/239

40/239

20/125

16/80

MS030XN

68/340

61/340

31/173

25/132

MS030AN

61/300

55/300

27/150

22/109

MS050XN

101/605

91/605

46/272

37/215

MS050AN

100/500

90/500

46/250

37/198

MS070XN

133/599

120/599

60/310

48/239

MS070AN

127/599

114/599

58/310

47/239

MS085XN

MS085XN

Call Factory

Note: RLA and LRA is per compressor. Two compressors per module.

2. Wiring Sizing: Minimum Circuit Ampacity (MCA) MCA = (1.25 x RLA1*) + RLA2 + RLA3 MCA

50 65 85 100 115 130 150 175 200 230 255 285 300 350 400 460 500

6 3 CONDUCTORS CONDUCTORS 1 CONDUIT 2 CONDUIT

8 6 4 3 2 1 1/0 2/0 3/0 4/0 250 MCM 300 MCM — — — — —

— — — — — — — — — — — 1/0 2/0 3/0 4/0 4/0 250 MCM

Call Factory

Note: RLA and LRA is per compressor. Two compressors per module.

3. Fuse Sizing: Maximum Fuse (MF), Type RK5 Fuse MF= (2.25 x RLA1*) + RLA2 + RLA3 Where the MF does not equal a standard size fuse, the next larger size should be used. 4. Standard modules short circuit current rating: SCCR=5kA NOTES: A.*RLA1 = RLA of the largest compressor in the system. RLA2 & RLA3 = RLA of the other compressors in the system. B. The total system Minimum Circuit Ampacity (aMCA) shall not exceed 500A. C. Wire sizing is based on the Nat. Electr. Code (NEC) rating for 75°C copper wire, with 3 wires per conduit. D. Wiring Distance from branch circuit shall not exceed 100ft.

19

Water-to-Water Heat Pump CONTROLLER SCHEMATICS

Chiller Data ENT. LOAD WATER TEMP.

LOAD WATER PUMP OPERATION

LVG. LOAD WATER TEMP

SOURCE/SINK WATER PUMP OPERATION

VERIFY LOAD WATER FLOW

FAULT NOTIFICATION

ENT. SOURCE/SINK WATER TEMP

FULL LOAD RELAY

LVG. SOURCE/SINK WATER TEMP

CHILLED WATER CONTROLS

VERIFY SOURCE/SINK WATER FLOW

HOT WATER CONTROLS

BUILDING AUTOMATION SOLUTIONS INTEROPERABILITY PORTALS

CUSTOMER INTERLOCKS LOAD WATER , OR LOAD LIMIT RESET INPUT

RS485 Serial Card

MASTER CONTROL Can stage a maximum of 15 modules

PCO Net RS485 Interface Board

(30 compressors)

REMOTE DISPLAY

Module Data

(optional)

MODULE CONTROL PANEL DATA FROM REFRIGERATION SYSTEM “A” DATA FROM REFRIGERATION SYSTEM “B” HP TRANSDUCER HIGH PRESSURE SWITCH LP TRANSDUCER COMP. MOTOR PROTECTION

HP TRANSDUCER HIGH PRESSURE SWITCH LP TRANSDUCER COMP. MOTOR PROTECTION

BACNET™

• MSTP • ETHERNET • TCP/IP

MODBUS™ (RTU)

SUCTION TEMPERATURE

SUCTION TEMPERATURE

LVG. LOAD WATER TEMP

LVG. LOAD WATER TEMP

SNMP PROTOCOL

CIRCUIT FAULT CONDITION

CIRCUIT FAULT CONDITION

LONMARK™

LVG. SOURCE/SINK WATER TEMP

LVG. SOURCE/SINK WATER TEMP HIGH VOLTAGE CONTROL PANEL CIRCUIT “A” COMPRESSOR CONTACTOR CIRCUIT “B” COMPRESSOR CONTACTOR

20

PCO Web Ethernet Interface Board

Water-to-Water Heat Pump PIPING SCHEMATICS Required Load Water Piping

PRESSURE TAPS

SUPPLIED AND INSTALLED BY MULTISTACK

1/2” SENSOR POCKETS SUPPLIED BY MULTISTACK

STRAINER ISOLATION VALVE

Installation of sensor pocket (weld-a let) is recommended at 30” from end of chiller, supplied and installed by others.

SUPPLIED AND INSTALLED BY OTHERS

EVAPORATOR WATER PUMP

STANDARD “Y” STRAINER

SUPPLIED AND INSTALLED BY OTHERS

SUPPLIED AND INSTALLED BY OTHERS. NOTE: SELECT STRAINER BASED ON WATER QUALITY

SP

FROM BUILDING LOAD

SP

TO BUILDING LOAD FS

MULTISTACK CHILLER EVAPORATOR ISOLATION VALVES SUPPLIED AND INSTALLED BY OTHERS

FLOW SWITCH

SUPPLIED AND INSTALLED BY OTHERS

Required Source/Sink Water Piping

PRESSURE TAPS

SUPPLIED AND INSTALLED BY MULTISTACK

1/2” SENSOR POCKETS SUPPLIED BY MULTISTACK

Installation of sensor pocket (weld-a-let) is recommended at 30” from end of chiller, supplied and installed by others.

FLOW SWITCH

CONDENSER ISOLATION VALVES

SUPPLIED AND INSTALLED BY OTHERS

SUPPLIED AND INSTALLED BY OTHERS

FS

SP

TO SOURCE/SINK LOAD

SP

FROM SOURCE/SINK LOAD

MULTISTACK CHILLER STRAINER ISOLATION VALVE SUPPLIED AND INSTALLED BY OTHERS

STANDARD “Y” STRAINER

SUPPLIED AND INSTALLED BY OTHERS. NOTE: SELECT STRAINER MESH BASED ON WATER QUALITY

SOURCE/SINK WATER PUMP

SUPPLIED AND INSTALLED BY OTHERS

3-WAY SOURCE/SINK BY-PASS VALVE

SUPPLIED AND INSTALLED IN BUILDING BY OTHERS * May be required if tying into additional heat rejection equipment like a ground source, cooling tower or dry cooler.

21

Water-to-Water Heat Pump MECHANICAL SPECIFICATIONS PART 2 PRODUCTS 2.01 Operating Conditions A. Provide water-to-water heat pump with the capacity as scheduled on drawings at job site elevation listed in Section 15050. B. Heat Pump shall be designed to operate using R-410A or R-134a Refrigerant. C. Heat Pump shall be designed for parallel evaporator water flow. D. The liquid to be heated and cooled will be water containing corrosion inhibitors. E. Heat Pump shall be designed to operate using ____ volt, 3 phase, 60Hz electrical power supply. 2.02 Water-to-Water Packaged Heat Pump A. Approved manufacturer is MULTISTACK. B. System Description: Heat Pump shall incorporate Scroll-type compressors and consist of multiple refrigerant circuits. Each refrigerant circuit shall consist of an individual compressor, condenser, evaporator circuit, thermal expansion valve, reversing valve, and control system. Each circuit shall be constructed to be independent of other circuits from a refrigeration and electrical stand-point. The multi-circuit heat pump must be able to produce chilled water even in the event of a failure of one or more refrigerant circuits. Circuits shall not contain more than 20 lb. of R-410a refrigerant. C. General 1. Heat Pump Modules shall be ETL listed in accordance with UL Standard 1995, CSA certified per Standard C22.2#236, and bear the ASME UM stamp on all heat exchangers (not applicable for modules with R-410A refrigerant). 2. Modules shall ship wired and charged with refrigerant. All modules shall be factory run tested prior to shipment. 3. Compressors, heat exchangers, piping and controls shall be mounted on a heavy gauge steel frame. Electrical controls, contactors, and relays for each module shall be mounted within that module. D. Water Mains: Each module shall include supply and return mains for both load and source-sink water. Grooved end connections are provided for interconnection to six inch standard (6.625” outside diameter) piping with Victaulic type couplings. E. Heat Exchangers: Each load and source-sink heat exchanger shall be brazed plate heat exchangers constructed of 316 stainless steel; designed, tested, and stamped in accordance with UL code 1995 for 650 psig working pressure on load and source-sink heat exchangers. Heat exchangers shall be mounted below the compressor, to eliminate the effect of migration of refrigerant to the cold evaporator with consequent liquid slugging on start-up. F. Compressor: Each module shall contain two hermetic scroll compressors independently circuited and with internal spring isolation mounted to the module with rubber-in-shear isolators. Each system also includes high discharge pressure and low suction pressure manual reset safety cut-outs. G. Central Control System. 1. Scheduling of the various compressors shall be performed by a microprocessor based control system (Master Controller). A new lead compressor is selected every 24 hours to assure even distribution of compressor run time.

22

2. The Master Controller shall monitor and report the following on each refrigeration system: a. Discharge Pressure Fault b. Suction Pressure Fault c. Compressor Winding Temperature d. Suction Temperature e. Load Leaving Water Temp. f. Source-Sink Leaving Water Temp. 3. The Master Controller shall monitor and report the following system parameters: a. Load Water Entering and Leaving Temperature b. Source-Sink Water Entering and Leaving Temperature c. Load Water and Source-Sink Water Flow 4. An out of tolerance indication from these controls or sensors shall cause a “fault” indication at the Master Controller and shutdown of that compressor with the transfer of load requirements to the next available compressor. In the case of a System Fault the entire heat pump will be shut down. When a fault occurs, the Master Controller shall record conditions at the time of the fault and store the data for recall. This information shall be capable of being recalled through the keypad of the Master Controller and displayed on the Master Controller’s semigraphical display. A history of faults shall be maintained including date and time of day of each fault (up to the last 20 occurrences). 5. Individual monitoring of leaving water temperatures from each refrigeration system shall be programmed to protect against heat exchanger freeze-up. 6. The control system shall monitor entering and leaving water temperatures to determine system load and select the number of compressor circuits required to operate. Response times and set points shall be adjustable. The system shall provide for variable time between compressor sequencing and temperature sensing, so as to fine tune the heat pump to different existing building conditions. 7. Optionally, the Heat pump shall be capable of interfacing with the Building Automation System via an Interoperability Web Portal. 8. The heat pump mode (heating or cooling) shall be selected by an external dry contact interlock to the Master Controller. If no interlock is present, or in the event of a reversing valve solenoid failure, the system shall revert to heating mode. H. Heat pump shall have a single point power connection and external inputs and outputs to be compatible with the building management system. Inputs/ Outputs include: 1. Remote Start/Stop 2. Cooling Alarm I. Each inlet water header shall incorporate a built in 30-mesh in-line strainer system to prevent heat exchanger fouling.

Water-to-Water Heat Pump MECHANICAL SPECIFICATIONS, cont’d 2.03 SAFETIES, CONTROLS AND OPERATION A. Heat pump safety controls system shall be provided with the unit (minimum) as follows: 1. Low refrigerant pressure 2. Loss of flow through the source/sink heat exchanger 3. Loss of flow through the load heat exchanger 4. High refrigerant pressure 5. High compressor motor temperature 6. Low suction gas temperature 7. Low leaving water temperature B. Failure of heat pump to start or heat pump shutdown due to any of the above safety cutouts shall be enunciated by display of the appropriate diagnostic description at the unit control panel. This annunciation will be in plain English. Alphanumeric codes shall be unacceptable. C. The heat pump shall be furnished with a Master Controller as an integral portion of the heat pump control circuitry to provide the following functions: 1. Provide automatic heat pump shutdown during periods when the load level decreases below the normal operating requirements of the heat pump. Upon an increase in load, the heat pump shall automatically restart. 2. Provisions for connection to automatically enable the heat pump from a remote energy management system. 3. The control panel shall provide alphanumeric display showing all system parameters in the English language with numeric data in English units. D. Normal Heat Pump Operation 1. When heat pump is enabled, the factory supplied Master Controller modulates the heat pump capacity from minimum to maximum as required by building load. 2. The heat pump control system shall respond to Entering Water Temperature and will have an integral reset based on entering water temperature to provide for efficient operation at part-load conditions. 3. The operating mode (heating or cooling) shall be determined by a customer provided dry contact interlock. E. Power Phase Monitor 1. Provide a Power Phase Monitor on the incoming power supply to the heat pump. This device shall prevent the heat pump from operating during periods when the incoming power is unsuitable for proper operation. 2. The Power Phase Monitor shall provide protection against the following conditions: a. Low Voltage (Brown-Out) b. Phase Rotation c. Loss of Phase d. Phase Imbalance

PART 3 INSTALLATION 3.01 PIPING SYSTEM FLUSHING PROCEDURE A. A. Prior to connecting the heat pump to the condenser and chilled water loop, the piping loops shall be flushed with a detergent and hot water (110130° F) mixture to remove previously accumulated dirt and other organic . In old piping systems with heavy encrustation of inorganic materials consult a water treatment specialist for proper passivation and/or removal of these contaminants. B. During the flushing 30 mesh (max.) Y-strainers (or acceptable equivalent) shall be in place in the system piping and examined periodically as necessary to remove collected residue. The flushing process shall take no less than 6 hours or until the strainers when examined after each flushing are clean. Old systems with heavy encrustation shall be flushed for a minimum of 24 hours and may take as long as 48 hours before the filters run clean. Detergent and acid concentrations shall be used in strict accordance with the respective chemical manufacturers instructions. After flushing with the detergent and/or dilute acid concentrations the system loop shall be purged with clean water for at least one hour to ensure that all residual cleaning chemicals have been flushed out. C. Prior to supplying water to the heat pump the Water Treatment Specification shall be consulted for requirements regarding the water quality during heat pump operation. The appropriate heat pump manufacturer’s service literature shall be available to the operator and/or service contractor and consulted for guidelines concerning preventative maintenance and off-season shutdown procedures. 3.02 Water Treatment Requirements A. Supply water for both the chilled water and condenser water circuits shall be analyzed and treated by a professional water treatment specialist who is familiar with the operating conditions and materials of construction specified for the heat pump’s heat exchangers, headers and associated piping. Cycles of concentration shall be controlled such that recirculated water quality for modular heat pumps using 316 stainless steel brazed plate heat exchangers and carbon steel headers is maintained within the following parameters: 1. pH Greater than 7 and less than 9 2. Total Dissolved Solids (TDS) Less than 1000 ppm 3. Hardness as CaCO3 30 to 500 ppm 4. Alkalinity as Ca CO3 30 to 500 ppm 5. Chlorides Less than 200 ppm 6. Sulfates Less than 200 ppm

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Environmentally Friendly Refrigerants R-410A and R-134a Refrigerant R-410A and R-134a are widely available, safe, and environmentally friendly refrigerants. R-410A is available in virtually all Multistack systems making hot water up to 140°F and R-134a is available in machines making hot water up to 180°F. Good environmental choices! Environmental Focus In addition to providing products to deliver reliable comfort and low operating cost, Multistack’s products can also reduce your environmental footprint. We are committed to developing and manufacturing cooling and heating products that can reduce fossil fuel consumption and operate on the refrigerants designed to protect the environment. Dedicated heat recovery chillers, water-to-water heat pumps and efficiency improvements across our product line are the result of this focus.

Originators…

Multistack invented the modular water chiller. It started with a radically simple idea: chiller modules that could be brought into the equipment room one at a time, through standard doorways and down elevators, to form a fully integrated chiller system. The idea launched a revolution and transformed Multistack into a leader in the commercial water-chiller industry.

Innovators…

Multistack perfected the modular chiller and leads the industry in innovative and environmentally friendly modular solutions. Since founding in the late 1980s, Multistack has engineered, manufactured, and distributed an impressive array of modular air conditioning firsts: the first on-board strainer, the first modular automatic blow-down device, the first modular chiller for variable flow, the first modular chiller-heater (heat pump), the first modular heat-recovery chiller, the first modular air-to-water heat pump, the first modular chiller to utilize MagLev™ compressor technology, and the first modular chiller to utilize R-410A.

Never the Imitators…

Multistack sets the standard in the industry for superior customer service, fast and on time shipment, superior product quality, and new product development. Our pioneering leadership in environmental issues is well documented. If you want the best, be sure to specify the original – Multistack®.

1065 Maple Avenue P.O. Box 510 Sparta, WI 54656 Phone 608-366-2400 • Fax 608-366-2450 www.multistack.com

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