Carrier GT-PX(50YER), GT-PW(50YEW), GT-PX(50YD) User Manual

GT-PW (50YEW)

Water-To-Water Series

WATER-TO-WATER PURON® SYSTEMS

SIZE 010 [10 kW]

Revised Aug. 1 2010

GT-PW Water-to-Water (50YEW) Series

Table of Contents

Unit Features .......................................................................................197

Model Key .............................................................................................199

Rated Equipment Performance & Efciencies ..................200

Performance Data .................................................................201-202

Physical Data .......................................................................................203

Dimensions...........................................................................................204

Electrical Data .....................................................................................205

Wiring Diagrams .................................................................... 206-213

Engineering Guide Specications .............................................214

Accessories & Options ..................................................................215

Warranty Information ....................................................................215

Revision History ................................................................................216

50YEW

196

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Carrier Geothermal Heat Pump Systems

50YEW Water-To-Water Design Features

The 50YEW series is unlike any other water-to-water heat pump on
the market today. The large operating map of the scroll compressor
allows high temperature operation, up to 145°F [63°C] leaving
load water temperature even at 32°F [0°C] entering source water
temperature. The combination of a coaxial (tube-in-tube) heat
exchanger for the source (ground loop) side and a brazed plate
heat exchanger for the load (heating/hot water) side provides very
high efciencies. Integral controls for hydronic heating and domestic
water heating avoid the need for external microprocessor-based
controls for outdoor temperature reset, warm weather shutdown,
staging and other controls.

The 50YEW has an extended range refrigeration circuit, capable of
ground loop (geothermal) applications as well as open loop (well
water) applications. Standard features and factory-installed options
are many. Unique application-specic controls make the 50YEW
series ideal for hydronic heating and domestic hot water generation.
The heating-only refrigeration circuit is optimized for high water
temperatures, heating efciencies, and capacities.

The dual level compressor isolation mounting system, insulated
compressor enclosure, and compressor discharge mufer make
the 50YEW series one of the quietest water-to-water heat pumps
available. The attractive “Euro-style” cabinet allows the unit to t into
any decor.

Application Flexibility

• Capacities 10kW [32,600 Btuh].

• High temperature scroll compressor, up to 145°F [63°C] leaving
water temperature.

• Ultra high efciencies (4.2 COP at ground loop conditions; up to

5.5 COP at ground water conditions).

• Built-in programmable controller with Outdoor Temperature Reset
and Warm Weather Shutdown.

• Large, back-lit digital user interface.

• Rugged coaxial (tube-in-tube) “Source” heat exchanger (copper or
cupro-nickel).

• Close approach temperature brazed plate stainless steel “Load”
heat exchanger.

• Dual level compressor isolation, compressor enclosure, and
discharge mufer for Ultra quiet operation.

• “Euro-style” cabinet for attractive look.

• Insulated cabinet with foil backed insulation for ease of cleaning.

• Flush-mount FPT ttings, secured to the cabinet (no backup
wrench required).

• TXV metering device.

• 12-point low voltage terminal strip for ease of installation.

• ETL safety listing.

• Wide variety of options including internally factor y installed
Domestic Hot Water Mode, Load and Source side pumps with
expansion tanks, VSFP (variable speed oor pump connection)
Controls and Cupro-Nickel Source Heat Exchanger.

Service & Installation Advantages

• Hinged front access door and 3 removable panels for ease
of installation and service.

• Galvanized steel construction with protective powder coat paint
and hinged front access door.

• Bi-directional thermal expansion valve.

®

• Puron

• Circuit breaker protected 75VA control transformer.

• High and low pressure service por ts on refrigerant circuit.

• Accurate refrigerant sensing freeze protection.

Factory Quality & Certications

• All units are built on our Integrated Process Control Assembly

a. Veries that the correct components are being assembled.
b. Automatically performs special leak tests on all joints.
c. Conducts pressure tests.
d. Performs highly detailed run test unparalleled in the
HVAC industry.
e. Automatically disables packaging for a “failed” unit.
f. Creates computer database for future service analysis and

• All units are water run-tested in all modes to insure efciency

• Heavy gauge galvanized steel cabinets are epoxy powder coated

• All refrigerant brazing is done in a nitrogen atmosphere.

• All units are deep evacuated to less than 100 microns prior to

• All joints are both helium and halogen leak tested to insure annual

• Coaxial heat exchanger, refrigerant suction lines and all water

• Noise Reduction features include: dual level compressor isolation,

• Safety features include: high pressure and loss of charge to

• 10-year limited warranty on major refrigerant circuit components,

• AHRI/ASHRAE/ANSI/ISO 13256-2 certied.

• NRTL & CSA listed.

• US EPA “Energy Star” compliant.

• ISO 9001:2000 Certied.

Options & Accessories

• Full Condensing Hot Water Generation With Internal Secondar y

• Factory Installed “Load” and “Source” Pumps.

• Factory Installed Expansion Tanks.

• Cupro-Nickel Source Water Coil.

• Extended Labor Allowance and Service Warranty.

HFC-410A zero ozone depletion refrigerant.

System (IPCS). The IPCS is a unique state of the art manufacturing
system that is designed to assure quality of the highest standards of
any manufacturer in the water-source industry. Our IPCS system:

diagnostics from run test results.

and reliability.

for durable and long-lasting nish.

refrigerant charging.

leak rate of less than 1/4 ounce.

lines are fully insulated to eliminate condensation problems in low
temperature applications.

insulated compressor compartment, interior cabinet insulation
using 1/2” coated glass ber, and variable speed fan.

protect the compressor, condensate overow protection, freeze
protection sensors to safeguard the coaxial heat exchanger
and air coil, hot water high-limit and low compressor discharge
temperature switch provided to shut down the hot water
generator when conditions dictate. Fault lockout enables
emergency heat and prevents compressor operation until
thermostat or circuit breaker has been reset.

Optional extended warranties available.

Heat Exchanger and Potable Water Circulating Pump.

Residential Products Technical Guide

50YEW

197

GT-PW Water-to-Water (50YEW) Series

50YEW Water-To-Water Series Features

1

Euro-Style Cabinet For Attractive Look

2

High Temperature Scroll Compressor

3

Rugged Coaxial “Source” Heat Exchanger

Close Approach Temperature Brazed Plate

4

Stainless Steel “Load” Heat Exchanger

Optional Full Condensing Hot Water

5

Generation With Internal Secondary
Heat Exchanger and Potable Water
Circulating Pump

Optional Factory Installed “Load” and

6

“Source” Pumps with expansion tanks

Fully Insulated Water and

7

Refrigerant Lines

6

7

5

11

14

4

1

8

Fully Insulated Compressor Section

Powder Coated Galvanized Steel Cabinet

9

and Front Access Panel For Long Life,
Taupe Metallic

Large Backlight User Interface

10

Built-In Programmable Controller With

11

Outdoor Temperature Reset and Warm
Weather Shutdown

Dual level compressor isolation and discharge

12

mufer for ultra quiet operation

Hinged Front Access Door and Three

13

Removable Panels For Ease of Installation
and Service

12-Point Terminal Strip For Ease of Low

14

Voltage Wiring

3

2

12

9

13

10

50YEW

198

8

Carrier : Turn to the Experts.

Carrier Geothermal Heat Pump Systems

Model Key

5 0 A0 1 0 CW 3 1 1

Y E W

Prefix

Residential Series

YEW = Puron High Temperature

Heating Only Water-to-Water

1 2 3

4 5 6 7

Unit Size

010 (10kW)

Hydronic Options

A = No Pump
B = Load Pump w/Expansion Tank
C = Load Pump & Source Pump(s)
w/Expansion Tanks

8

9 10 11 12

Controls

W = CXM
Y = CXM w/VSFP

Packaging

1 = Single Pack, Domestic

Revision Level

1 = Current

Voltage

3 = 208-230/60/1

Water Coil & DHW Options

C = Copper Source & Braze Plate Load, No DHW
D = Copper Source & Braze Plate Load, DHW w/Sec. hx & pump
N = Cupro-Nickel Source & Braze Plate Load, No DHW
P = Cupro-Nickel Source & Braze Plate Load, DHW w/Sec. hx & pump

*When digit 9 = “D” or “P,” digit 7 cannot be A.”

*

*

Residential Products Technical Guide

50YEW

199

GT-PW Water-to-Water (50YEW) Series

Rated Equipment Performance & Efciencies

60 Hz (I-P) Units

Ground Loop Heat Pump Ground Water Heat Pump

Heating Heating

Model

50YEW010

THW010 32.6 4.2 30.8 3.3 42.6 5.2 39.9 4.1

Indoor temperature is also called “Load;” outdoor temperature is also called “Source.” Numbers shown with “/” indicate entering/leaving water temperatures.
Bold outline indicates typical radiant oor application temperatures. Ratings at 40°C [104°F] are based upon AHRI/ISO Standard 13256-2; all other ratings are
based upon Standard EN 14511-2.

Indoor 86/95°F

Outdoor 32/27°F

Capacity

Mbtuh

COP

60 Hz (S-I) Units

Ground Loop Heat Pump Ground Water Heat Pump

Heating Heating

Model

50YEW010

THW010 9.57 4.2 9.03 3.3 12.50 5.2 11.69 4.1

Indoor temperature is also called “Load;” outdoor temperature is also called “Source.” Numbers shown with “/” indicate entering/leaving water temperatures.
Bold outline indicates typical radiant oor application temperatures. Ratings at 40°C [104°F] are based upon AHRI/ISO Standard 13256-2; all other ratings are
based upon Standard EN 14511-2.

Indoor 30/35°C
Outdoor 0/-3°C

Capacity

kW

COP

Indoor 104/113°F

Outdoor 32/27°F

Capacity

Mbtuh

Indoor 40/45°C
Outdoor 0/-3°C

Capacity

kW

COP

COP

Indoor 86/95°F

Outdoor 50/45°F

Capacity

Mbtuh

Indoor 30/35°C

Outdoor 10/7°C

Capacity

kW

COP

COP

Indoor 104/113°F

Outdoor 50/45°F

Capacity

Mbtuh

Indoor 40/45°C

Outdoor 10/7°C

Capacity

kW

COP

COP

50YEW

200

Carrier : Turn to the Experts.

Carrier Geothermal Heat Pump Systems

Performance Data - 50YEW010

Source Load

EWT

GPM

°F

20 8.3 1.3 3.1

4.2 0.3 0.8

30

8.3 0.9 2.0

4.2 0.3 0.7

50

8.3 0.7 1.7

4.2 0.3 0.7

70

8.3 0.7 1.7

50YEW operating parameters are as follows: Min Source EWT = 20°F; Max Load LWT = 145°F (see application section for design guidelines).
Interpolation is permissible; extrapolation is not.
Operation below 40°F EWT (source) is based upon 15% methanol antifreeze solution.
All performance data is based upon the lower voltage of dual voltage units.
Antifreeze for source water is required for operation in the shaded area and all source EWTs below 40°F.

WPD

PSI FT PSI FT PSI FT

EWT

HC

°F

MBtuh

50 32.3 1.10 28.6 61.9 8.6 0.8 1.7 32.7 1.10 32.7 59.4 8.7 1.8 4.0

70 30.0 1.74 27.7 81.1 5.1 0.6 1.4 30.3 1.68 30.3 78.7 5.3 1.1 2.6

90 27.8 2.41 22.9 100.2 3.4 0.5 1.2 28.0 2.35 28.0 98.0 3.5 1.0 2.2

110 25.5 2.99 18.4 119.4 2.5 0.4 0.9 25.7 2.93 25.7 117.4 2.6 0.8 1.9

50 31.9 1.10 28.1 61.8 8.5 0.8 1.7 32.1 1.11 32.1 58.8 8.5 1.8 4.0

70 29.6 1.74 23.7 80.9 5.6 0.6 1.4 29.7 1.68 29.7 78.1 5.2 1.1 2.6

90 27.4 2.40 19.2 100.1 3.8 0.5 1.2 27.2 2.34 27.2 97.5 3.4 1.0 2.2

110 25.2 2.97 15.1 119.3 2.8 0.4 0.9 24.8 2.91 24.8 116.8 2.5 0.8 1.9

130 22.8 3.68 10.3 138.4 2.1 0.3 0.7 22.4 3.62 22.4 136.2 1.8 0.7 1.6

50 36.3 1.12 32.5 63.4 9.5 0.8 1.7 36.7 1.12 36.7 60.1 9.6 1.8 4.0

70 33.7 1.76 27.7 82.4 5.6 0.6 1.4 34.1 1.7 34.1 79.3 5.9 1.1 2.6

90 31.2 2.43 22.9 101.5 3.8 0.5 1.2 31.5 2.37 31.5 98.6 3.9 1.0 2.2

110 28.7 3 18.4 120.6 2.8 0.4 0.9 28.9 2.94 28.9 117.9 2.9 0.8 1.9

130 26.0 3.72 13.3 139.6 2.1 0.3 0.7 26.3 3.66 26.3 137.2 2.1 0.7 1.6

50 44.2 1.12 40.4 66.3 11.6 0.8 1.7 43.9 1.11 43.9 62.0 11.6 1.8 4.0

70 41.1 1.81 34.9 85.2 7.3 0.6 1.4 40.6 1.71 34.8 81.1 6.9 1.1 2.6

90 38.2 2.53 29.6 104.1 4.8 0.5 1.2 37.5 2.43 29.2 100.3 4.5 1.0 2.2

110 35.1 3.15 24.4 123.0 3.8 0.4 0.9 34.2 3.06 23.8 119.4 3.3 0.8 1.9

130 32.1 3.92 18.7 141.8 2.6 0.3 0.7 31.0 3.82 18.0 138.5 2.4 0.7 1.6

50 48.9 1.13 45.0 68.1 12.7 0.8 1.7 49.3 1.12 49.3 63.5 12.9 1.8 4.0

70 45.5 1.83 39.2 86.8 7.3 0.6 1.4 45.9 1.73 40.0 82.6 7.8 1.1 2.6

90 42.3 2.56 33.5 105.6 4.8 0.5 1.2 42.7 2.46 34.3 101.7 5.1 1.0 2.2

110 38.9 3.18 28.1 124.4 3.8 0.4 0.9 39.3 3.09 28.8 120.8 3.7 0.8 1.9

130

35.5 3.96 22.0 143.1 2.6 0.3 0.7 35.9 3.86 22.7 139.8 2.7 0.7 1.6

50 57.0 1.13 53.1 71.1 14.8 0.8 1.7 56.3 1.12 56.3 65.4 14.8 1.8 4.0

70 53.1 1.87 46.7 89.6 8.3 0.6 1.4 52.0 1.73 46.1 84.2 8.8 1.1 2.6

90 49.6 2.63 40.6 108.3 5.5 0.5 1.2 48.1 2.49 39.5 103.2 5.6 1.0 2.2

110 45.8 3.30 34.5 126.9 4.1 0.4 0.9 44.0 3.17 33.2 122.1 4.1 0.8 1.9

130 41.9 4.11 27.9 145.5 3.0 0.3 0.7 39.8 3.98 26.3 140.9 2.9 0.7 1.6

50 61.4 1.14 57.5 72.7 15.8 0.8 1.7 62.0 1.13 62.0 67.0 16.1 1.8 4.0

70 57.2 1.89 50.8 91.1 8.9 0.6 1.4 57.8 1.75 51.8 85.8 9.7 1.1 2.6

90 53.4 2.66 44.3 109.7 5.9 0.5 1.2 53.9 2.52 45.3 104.8 6.3 1.0 2.2

110 49.3 3.34 37.9 128.2 4.3 0.4 0.9 49.8 3.2 38.9 123.6 4.6 0.8 1.9

130 45.1 4.16 30.9 146.7 3.2 0.3 0.7 45.5 4.02 31.8 142.5 3.3 0.7 1.6

5.4 GPM

PowerkWHE

MBtuh

LWT

°F

COP

WPD

HC

MBtuh

7.3 GPM

PowerkWHE

MBtuh

LWT

WPD

COP

°F

Residential Products Technical Guide

50YEW

201

50YEW

202

GT-PW Water-to-Water (50YEW) Series

Performance Data - 50YEW010

Source DHW Circuit

EWT

GPM

°F

6.75 0.8 1.8

20

8.3 1.4 3.2

6.75 0.7 1.7

30

8.3 1.3 3.0

6.75 0.6 1.5

50

8.3 1.2 2.8

6.75 0.6 1.3

70

8.3 1.1 2.6

6.75 0.5 1.2

90

8.3 1.1 2.4

6.75 0.5 1.2

110

8.3 1.0 2.4

50YEW operating parameters are as follows: Min Source EWT = 20°F; Max Load LWT = 145°F (see application section for design guidelines).
Interpolation is permissible; extrapolation is not.
Operation below 40°F EWT (source) is based upon 15% methanol antifreeze solution.
All performance data is based upon the lower voltage of dual voltage units.
Antifreeze for source water is required for operation in the shaded area and all source EWTs below 40°F.

WPD

PSI FT PSI FT

EWT

HC

°F

MBtuh

50 28.2 1.78 22.1 66.1 4.6 1.9 4.3 28.3 1.57 22.9 60.4 5.3 3.7 8.6

70 27.1 2.15 19.8 85.5 3.7 1.80 4.2 27.1 1.89 20.7 80.1 4.2 3.6 8.3

90 25.6 2.61 16.7 104.7 2.9 1.8 4.1 25.7 2.29 17.9 99.6 3.3 3.5 8.2

110 23.9 3.16 13.1 123.8 2.2 1.8 4.0 24.0 2.78 14.5 119.0 2.5 3.5 8.1

120 22.9 3.47 11.1 133.2 1.9 1.7 4.0 23.0 3.06 12.6 128.6 2.2 3.5 8.0

50 29.0 1.76 23.0 66.5 4.8 1.9 4.3 29.1 1.55 23.8 60.7 5.5 3.7 8.6

70 27.9 2.12 20.6 85.9 3.8 1.8 4.2 27.9 1.87 21.6 80.4 4.4 3.6 8.3

90 26.4 2.58 17.6 105.2 3.0 1.8 4.1 26.5 2.27 18.7 99.9 3.4 3.5 8.2

110 24.6 3.13 14.0 124.2 2.3 1.8 4.0 24.7 2.75 15.3 119.2 2.6 3.5 8.1

120 23.6 3.44 11.9 133.6 2.0 1.7 4.0 23.7 3.02 13.4 128.9 2.3 3.5 8.0

50 33.4 1.82 27.2 69.0 5.4 1.8 4.3 34.2 1.61 28.7 62.6 6.2 3.7 8.6

70 31.5 2.20 24.0 88.0 4.2 1.8 4.2 32.2 1.95 25.6 81.9 4.8 3.6 8.3

90 29.5 2.70 20.3 107.0 3.2 1.8 4.1 30.2 2.40 22.0 101.2 3.7 3.5 8.2

110 27.5 3.31 16.2 125.8 2.4 1.8 4.0 28.1 2.94 18.0 120.5 2.8 3.5 8.1

120 26.4 3.66 13.9 135.2 2.1 1.7 4.0 27.0 3.24 15.9 130.1 2.4 3.5 8.0

50 34.8 1.78 28.7 69.8 5.7 1.9 4.3 35.5 1.58 30.1 63.1 6.6 3.7 8.6

70 32.8 2.16 25.4 88.7 4.4 1.80 4.2 33.5 1.91 27.0 82.4 5.1 3.6 8.3

90 30.7 2.65 21.7 107.6 3.4 1.8 4.1 31.4 2.35 23.4 101.7 3.9 3.5 8.2

110 28.5 3.25 17.5 126.5 2.6 1.8 4.0 29.2 2.88 19.4 120.9 3.0 3.5 8.1

120 27.4 3.59 15.2 135.8 2.2 1.7 4.0 28.1 3.18 17.2 130.5 2.6 3.5 8.0

50 43.1 1.91 36.5 74.5 6.6 1.9 4.3 45.7 1.72 39.8 66.8 7.8 3.7 8.6

70 40.3 2.35 32.3 93.1 5.0 1.8 4.2 42.7 2.11 35.6 85.8 5.9 3.6 8.3

90 37.4 2.85 27.7 111.5 3.8 1.8 4.1 39.6 2.57 30.9 104.8 4.5 3.5 8.2

110

34.3 3.43 22.5 129.7 2.9 1.8 4.0 36.3 3.09 25.8 123.6 3.4 3.5 8.1

120 32.6 3.75 19.8 138.8 2.5 1.7 4.0 34.6 3.37 23.1 132.9 3.0 3.5 8.0

50 45.2 1.85 38.9 75.7 7.1 1.6 4.3 47.9 1.67 42.2 67.7 8.4 3.7 8.6

70 42.3 2.28 34.6 94.2 5.5 1.8 4.2 44.9 2.05 37.9 86.6 6.4 3.6 8.3

90 39.3 2.77 29.8 112.5 4.2 1.8 4.1 41.6 2.49 33.1 105.5 4.9 3.5 8.2

110 36.0 3.33 24.6 130.7 3.2 1.8 4.0 38.1 3.00 27.9 124.2 3.7 3.5 8.1

120 34.2 3.64 21.8 139.8 2.8 1.7 4.0 36.3 3.27 25.1 133.6 3.3 3.5 8.0

50 49.5 1.96 42.8 78.1 7.4 1.9 4.3 54.1 1.79 48.0 70.0 8.9 3.7 8.6

70 46.9 2.41 38.7 96.8 5.7 1.8 4.2 51.3 2.20 43.8 89.0 6.8 3.6 8.3

90 43.7 2.95 33.6 115.1 4.3 1.8 4.1 47.8 2.70 38.6 107.8 5.2 3.5 8.2

110 39.9 3.60 27.6 133.0 3.2 1.8 4.0 43.7 3.28 32.5 126.3 3.9 3.5 8.1

120 37.7 3.96 24.2 141.8 2.8 1.7 4.0 41.3 3.61 29.0 135.5 3.4 3.5 8.0

50 32.8 1.88 26.3 68.6 5.1 1.9 4.3 35.9 1.72 20.0 63.2 6.1 3.7 8.6

70 52.4 2.31 44.5 100.0 6.6 1.8 4.2 57.4 2.11 50.2 91.3 8.0 3.6 8.3

90 49.7 2.83 40.0 118.5 5.1 1.8 4.1 54.4 2.59 45.6 110.2 6.2 3.5 8.2

110 46.3 3.45 34.5 136.7 3.9 1.8 4.0 50.7 3.15 39.9 128.9 4.7 3.5 8.1

120 42.3 3.80 29.3 144.4 3.3 1.7 4.0 46.3 3.46 34.5 137.3 3.9 3.5 8.0

50 55.9 2.01 49.0 81.8 8.2 1.9 4.3 62.9 1.86 56.5 73.2 9.9 3.7 8.6

70 53.46 2.47 45.0 100.6 6.4 1.8 4.2 60.2 2.28 52.4 92.3 7.7 3.6 8.3

90 50.0 3.05 39.6 118.7 4.8 1.8 4.1 56.3 2.82 46.7 111.0 5.8 3.5 8.2

110 45.5 3.76 32.7 136.2 3.5 1.8 4.0 51.3 3.48 39.4 129.1 4.3 3.5 8.1

120 42.9 4.17 28.7 144.8 3.0 1.7 4.0 48.3 3.85 35.2 138.1 3.7 3.5 8.0

50 60.9 1.92 54.3 84.6 9.3 1.9 4.3 68.5 1.77 62.5 75.3 11.3 3.7 8.6

70 58.3 2.35 50.2 103.3 7.3 1.8 4.2 65.6 2.18 58.2 94.3 8.8 3.6 8.3

90 54.5 2.91 44.6 121.3 5.5 1.8 4.1 61.4 2.69 52.18 112.8 6.7 3.5 8.2

110 49.6 3.59 37.4 138.6 4.0 1.8 4.0 55.9

120 46.8 3.98 33.2 147.0 3.4 1.7 4.0 52.6 3.68 40.1 139.7 4.2 3.5 8.0

50 59.3 2.04 52.4 83.8 8.5 1.9 4.3 68.4 1.91 61.9 75.2 10.5 3.7 8.6

70 57.4 2.54 48.7 102.8 6.6 1.8 4.2 66.2 2.38 58.1 94.6 8.1 3.6 8.3

90 54.1 3.18 43.3 121.1 5.0 1.8 4.1 62.4 2.98 52.3 113.2 6.1 3.5 8.2

110 49.5 3.96 36.0 138.5 3.7 1.8 4.0 57.1 3.71 44.4 131.3 4.5 3.5 8.1

50 64.7 1.94 58.0 86.8 9.8 1.9 4.3 74.6 1.82 68.4 77.5 12.0 3.7 8.6

70 62.6 2.42 54.3 105.8 7.6 1.8 4.2 72.2 2.27 64.5 96.8 9.3 3.6 8.3

90 59.0 3.03 48.7 123.9 5.7 1.8 4.1 68.1 2.84 58.4 115.3 7.0 3.5 8.2

110 53.9 3.77 41.1 141.1 4.2 1.8 4.0 62.2 3.53 50.2 133.2 5.2 3.5 8.1

GPM=3.5

PowerkWHE

MBtuh

LWT

COP PSI FT

°F

WPD

HC

MBtuh

Carrier : Turn to the Experts.

LGPM=5.4

PowerkWHE

MBtuh

3.32 44.53 130.9 4.9 3.5 8.1

LWT

°F

WPD

COP

Carrier Geothermal Heat Pump Systems

Physical Data

Model 010

Compressor (qty) 1

Factory Charge HFC-410A (oz) [kg] 88 [2.50]

Indoor/Load Water Connection Size

FPT (in) 1

Outdoor/Source Water Connection Size

FPT (in) 1

Domestic Hot Water Connection Size

FPT (in) 3/4

Maximum Working Pressure (Water Side)

Base Unit (PSIG) [kPa] 500 [3445]

DHW Option (PSIG) [kPa] 145 [999]

Internal Source Pump
w/Expansion Tank (PSIG) [kPa]

Internal Load Pump
w/Expansion Tank (PSIG) [kPa]

Weight - Operating, (lbs) [kg] 455 [207]

Weight - Packaged, (lbs) [kg] 470 [214]

*

*

45 [310]

45 [310]

Dual isolation compressor mounting
Balanced Port Expansion Valve (TXV)
Insulated Source and Load Water Coils

*Does not apply to DHW potable water circuit

Residential Products Technical Guide

50YEW

203

GT-PW Water-to-Water (50YEW) Series

50YEW Dimensions

1.9” [4.9cm]

2.1” [5.3cm]

50YEW

204

Overall Cabinet

Model

A

DepthB WidthC Height

in. 26.8 25.6 48.9 3.4 8.1 22.3 11.3 17.7 14.4 33.6 35.6 38

010

cm. 68.1 65.1 124.2 8.6 20.6 56.6 28.7 45 36.6 85.3 90.4 96.5

1 2 3 4 5 6

D

Source

(Outdoor)

Water In

Source

(Outdoor)

Water Out

Water Connections

E

(Indoor)

Water In

F

Load

G

DHW

Water Out

H

Load

(Indoor)

Water Out

J

DHW

Water In

Electric Access Plugs

K

Low

Voltage

Carrier : Turn to the Experts.

L

Low

Voltage

M
Power
Supply

Carrier Geothermal Heat Pump Systems

Units with DHW Option

Model

50YEW010

THW010 G 208-230/60/1 197/254 1 20.7 81

Model

50YEW010

THW010 G 208-230/60/1 197/254 1 20.7 81

Voltage

Code

Voltage

Code

Voltage

Voltage

Min/Max

Voltage

Min/Max

Voltage

*Denotes optional items. Consult unit data plate if conguration is unknown.

Compressor

Qty RLA LRA

Standard (No DHW)

Compressor

Qty RLA LRA

Electrical Data

*Load

Pump

FLA

1.07 - 1.07 22.8 28 45

1.07 1.07 1.07 23.9 29.1 45

*Load

Pump

FLA

1.07 - 21.8 26.9 45

1.07 1.07 22.8 28 45

*Source

Pump

FLA

*Source

Pump

FLA

ISBP

Pump

FLA

Total

Unit
FLA

Total

Unit
FLA

Min

Circuit

Amps

Min

Circuit

Amps

Max

Fuse

HACR

Max

Fuse

HACR

Electrical - Wiring Diagram Matrix

Model

50YEW010 96B0108N05 230/60/1 -

50YEW010 96B0108N06 230/60/1 VSFP

50YEW010 96B0108N08 230/60/1 DHW

50YEW010 96B0108N09 230/60/1 DHW + VSFP

Diagram

Number

Voltage Option

Residential Products Technical Guide

50YEW

205

GT-PW Water-to-Water (50YEW) Series

Electrical Wiring Diagrams

50YEW010 Electrical Wiring Diagram - 230/60/1
96B0108N05

50YEW

206

Carrier : Turn to the Experts.

Carrier Geothermal Heat Pump Systems

50YEW010 Electrical Wiring Diagram - 230/60/1

96B0108N05

Residential Products Technical Guide

50YEW

207

GT-PW Water-to-Water (50YEW) Series

50YEW010 Electrical Wiring Diagram - 230/60/1
VSFP - 96B0108N06

50YEW

208

Carrier : Turn to the Experts.

Carrier Geothermal Heat Pump Systems

50YEW010 Electrical Wiring Diagram - 230/60/1

VSFP - 96B0108N06

Residential Products Technical Guide

50YEW

209

GT-PW Water-to-Water (50YEW) Series

50YEW010 Electrical Wiring Diagram - 230/60/1
DHW - 96B0108N08

50YEW

210

Carrier : Turn to the Experts.

Carrier Geothermal Heat Pump Systems

50YEW010 Electrical Wiring Diagram - 230/60/1

DHW - 96B0108N08

Residential Products Technical Guide

50YEW

211

GT-PW Water-to-Water (50YEW) Series

50YEW010 Electrical Wiring Diagram - 230/60/1
DHW + VSFP - 96B0108N09

50YEW

212

Carrier : Turn to the Experts.

Carrier Geothermal Heat Pump Systems

50YEW010 Electrical Wiring Diagram - 230/60/1

DHW + VSFP - 96B0108N09

Residential Products Technical Guide

50YEW

213

GT-PW Water-to-Water (50YEW) Series

Engineering Guide Specications

General

The water-source heating units shall be high temperature water-to­water heat pumps. Units shall be performance rated in accordance
with EN 14511-2 or ARI/ISO/ASHRAE 13256-2, and listed by a
recognized safety-testing laboratory or agency, such as ETL. Each unit
shall be water run-tested at the factory. The quality control system
shall automatically perform via computer: triple leak check, pressure
tests, evacuate and accurately charge system, perform detailed
heating mode tests, and quality cross check all operational and test
conditions to pass/fail data base. Each unit shall be pallet mounted
and shipped with appropriate protective packaging to help avoid
damage in transportation.

The units shall be warranted by the manufacturer against defects
in materials and workmanship for a period of 10 years on all parts,
and 10 years on the compressor and refrigerant circuit par ts with a
service labor allowance for 5 years on refrigeration components and
2 years on other parts. An optional extended warranty is available
for the 50YEW Series units, which increases the labor allowance to
10 years on all parts. The water source units shall be designed to
operate with entering Source temperature between 20 and 110°F
[-7 and 43°C], and entering Load temperature between 50 and
130°F [10 and 54°C] with a maximum leaving load temperature of
145°F [63°C].

Casing & Cabinet

The cabinet shall be fabricated from heavy-gauge galvanized steel and
painted with a polyester powder coating. Access door shall be hinged
for easy access. The interior shall be insulated with 1/2” [13mm]
thick, multi-density, foil-backed coated glass ber. Three access panels
shall be provided and shall be removable with piping in place. The
internal component layout shall provide for major service with the
unit in place for restricted access installations. The units shall have
an insulated compressor section to minimize the transmission of
compressor noise.

Refrigerant Circuit

All units shall contain Puron® (HFC-410A) sealed refrigerant circuit
employing a hermetic motor-compressor, thermal expansion valve,
coaxial tube water-to-refrigerant Source heat exchanger, brazed plate
Load heat exchanger, compressor discharge mufer, 100% molecular
sieve lter drier with XH-11 desiccant, and service ports. An optional
Domestic Hot Water mode shall be available. Compressors shall be
scroll type designed for heat pump duty and shall be double isolated
from the cabinet with two sets of compressor mounting hardware.
Compressor motors shall be single-phase PSC with internal over
load protection.

The coaxial water-to-refrigerant heat exchangers shall be designed
for close approach temperatures and be constructed of a convoluted
copper (optional cupro-nickel) inner tube and steel outer tube. The
brazed plate heat exchanger shall be designed for close approach
temperatures and shall be constructed with stainless steel plates. The
thermal expansion valve shall provide proper superheat over the
entire uid temperature range with minimal “hunting”. The coaxial
heat exchangers and refrigerant suction lines shall be insulated to
prevent condensation at low liquid temperatures.

Electrical

CXM Control – A microprocessor-based compressor controller
shall be provided to monitor and control unit operation. The control
shall provide compressor enable, high and low pressure monitoring,
eld selectable water coil low temperature sensing, and over/under
voltage monitoring. The control shall also provide for water valve
connection, a test mode, short cycle protection, random start­up, as well as fault LED, fault memory, and intelligent fault retry.
The control shall employ quick attach harness assemblies for low
voltage connections to the control board to aid in troubleshooting
or replacement. An integral terminal block with screw terminals
shall be provided on the control for connection to other low
voltage controls. The control system microprocessor board shall be
specically designed to protect against building electrical system noise
contamination, EMI, and RFI interference.

MPC Control – A programmable controller shall be provided to
monitor buffer tank temperature, Domestic Hot Water (DHW)
tank temperature, outdoor air temperature, and other inputs to
determine when to operate the compressor, pump(s) and hot water
valve. The MPC shall be factory-wired to the CXM compressor
control module and user interface. MPC programming shall include
outdoor temperature reset, warm weather shutdown, cooling enable,
heat pump staging, emergency DHW output, pump control, vacation
mode, DHW time schedule, advanced diagnostics, user interface
communication, and sensor monitoring.

Digital User Interface – A panel-mounted backlit digital user interface
shall be factory installed and wired for customization of the MPC
programming. Four arrow keys and a select key will be used to
control a large dot-matrix style 2” x 2” (5 x 5 cm) backlit display. The
main screen shall display current outdoor and water temperatures,
and allow the user to change settings by selecting from one of
the menus at the bottom of the screen. A special installer set up
mode will allow the technician to change some of the default MPC
parameters. The user interface shall include a time schedule for
DHW operation, Fahrenheit/Celsius selection, vacation mode for
DHW, and other user preference options.

12-point terminal block – A low voltage terminal block with a blue/
gray pattern for ease of identication shall be provided to connect
thermistors and external wiring. The MPC, user interface, CXM
board and other relays/components shall be factory-wired to the
terminal block.

Line voltage lugs shall be provided for unit wiring. A circuit breaker
protected 75VA transformer shall be employed. Units shall have
knockouts for entrance of low and line voltage wiring.

Piping

Source/Load supply and return water connections, as well as
Domestic Hot Water supply and return connections shall be FPT
(Female Pipe Thread) copper ttings and shall be securely mounted
ush to the cabinet allowing for connection to an MPT (Male Pipe
Thread) tting without the use of a back-up wrench. All Source
water piping shall be insulated to prevent condensation at low liquid
temperatures.

50YEW

214

Carrier : Turn to the Experts.

Carrier Geothermal Heat Pump Systems

Accessories & Warranty

Accessories & Options

Hot Water Mode Option

An optional mode to provide domestic hot water shall be
provided. This mode shall include a factory-installed, internal
secondary heat exchanger and a factory-installed potable
water, bronze circulating pump. This option shall provide an
additional set of water connections for the potable domestic
hot water and shall be completely factory installed and wired.
An external sensor shall be provided to sense the domestic
water storage tank temperature.

Internal Source and Load Pumps / Internal
Expansion Tanks

Optional Source pump(s), Load pump, and expansion tank(s)
shall be factory installed and wired to help lower installation
costs and labor. When installed at the factory, pumps are
controlled by the MPC.

Variable Speed Floor Pump Connection

An optional relay and line voltage lugs shall be provided for a
variable speed radiant oor system pump. Some radiant oor
systems utilize a variable speed pump on the oor system,
which changes ow based upon the number of zones open
or closed. Since the pump has built-in controls, only a power
supply is needed.

Warranty Information

The 2010 standard warranty applies to units ordered on or after July
1, 2010. See Carrier’s 2010 Limited Express Residential Warranty
Certicate CA234 for specic coverage and limitation.

Carrier residential class heat pumps are backed by a ten-year limited
warranty on all unit par ts, including the following accessories when
installed with Carrier units: Flow Controllers & Electric Heaters.

Carrier goes even further to back up its commitment to quality
by including a service labor allowance for the rst ve years on
refrigeration circuit components and two years on all other par ts,
auxiliary heaters and geothermal pumping modules.

The Optional Extended Factory Ser vice Labor Allowance Warranty
offers additional length of term protection to the consumer by
offsetting service labor costs for 10 years.

To order this warranty, contact your Carrier distributor. This coverage
must be purchased within 90 days of unit installation. See Limited
Express Extended Labor Warranty Certicate CA235 for details.

Cupro-Nickel Heat Exchanger

An optional corrosion resistant CuNi coaxial heat exchanger
shall be factory installed in lieu of standard copper
construction (Source heat exchanger only).

Flow Controller (eld installed)

A self-contained module shall provide all uid pumping, ll
and connection requirements for ground-source closed­loop systems up to 20 GPM [76 l/m]. The Flow Controller
shall provide 1” pump isolation valves/3-way service valves.
Pump heads shall be removable from the volute for easy
replacement. The Flow Controller shall be enclosed in a
polystyrene case and fully insulated with urethane foam to
prevent condensation. The Flow Controller shall have a 5- year
warranty on all par ts.

Hose Connection Kit (eld installed)

An accessory hose kit shall provide 150psi [1034 kPa] 1”
rubber hose with brass ttings equipped with service pressure/
temperature ports for connection between the unit and Flow
Controller.

Residential Products Technical Guide

50YEW

215

GT-PW Water-to-Water (50YEW) Series

Revision History

Date Page # Description

21 July, 10

01 June, 10 Various Warranty, Paint, Nomenclature Updates

30 Mar, 10 All Misc. format, physical data, and electrical data

30 Mar, 10 Decoder Page Decoder Updated

1 Mar, 10 All Misc. format and desc. updates

15 Dec, 09 All Updated Performance pages, added DHW mode information

01 Jan, 09 All Reformatted Document Size

01 Oct, 06 All First Published

Wiring Diagram

Pages

Wire Diagram revision: water-side high pressure switches added

50YEW

216

Carrier : Turn to the Experts.