Installation

Connecting a

Water Regulating Valve

The water regulating valve assembly is shipped as a separate item. Connec- tions from the valve assembly to the unit must be made by the installing contractor.

IMPORTANT: These valves are not positive shut-off devices. Use a slow- closing solenoid valve in the heat pump’s leaving water line to assure positive shut-offin variable-pump- ing applications.

Installation for

Single Compressor Units

(1)Connect the MPT connection on the valve assembly to the unit water out FPT connection. Note: A field sup- plied union or elbow may be required to connect the water regulating valve assembly to the unit. All field supplied fittings should be brass or copper.

(2)Connect the valve depressor with a 1/4" (6.35 mm) flare nut to the 1/4" (6.35 mm) schrader tap on the unit. Note: The pressure-sensing lines from both regulators have been "tee’d" to- gether.

(3)Adjust the regulator head pressure to meet specified conditions. See Table 4.

Note:

Water regulating valves are most com- monly applied with vapor-cycle refrigera- tion systems that use capillary tube metering devices to maintain suitable head or suction pressure levels for proper compressor loading. They are seldom ap- plied when thermal expansion valves (TXV’s) are used.

Table 4: Typical water regulating valve operating pressures

Note: If the unit has not been ordered with a water regulating tap, and the

Installation for

Multiple Compressor Units

Water Temp

Entering WSHP

Unit

45F

50F

55 F

60F

65F

Discharge

Pressure

Cooling Cycle 80F Return Air

160psig (minimum)

160psig (minimum)

160psig (minimum)

166-190 psig

178-204 psig

Suction

Pressure

Heating Cycle 70F Return-Air

46-54 psig

52-60 psig

56-66 psig

60-72 psig

62-74 psig

tap is field installed, it is important the tap be made on the copper tube be- tween the reversing valve and the wa- ter-to-refrigerant heat exchanger. This is the only part of the heat pump re- frigerant circuit that serves as both a discharge line during the cooling cy- cle, and a suction line during the heat- ing cycle. To avoid shavings, particles and dirt from entering the system, it is recommended that the 1/4" (6.35 mm) hole be burned in the copper vs. drilled in the copper.

A water regulating schrader option is not available factory shipped on the 12 1/2 through 25 ton units. All prepa- rations for the acceptance of a water regulating valve assembly must be made in the field.

5 4

WSHP-SVX01D-EN

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Trane GEH, GEV manual Connecting a Water Regulating Valve, Installation for Single Compressor Units
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GEV, GEH specifications

Trane has long been a leader in the HVAC industry, and their GEH and GEV series of heat pumps are a testament to their commitment to innovation and efficiency. These models are designed to provide substantial energy savings while maintaining exceptional performance, making them ideal choices for both residential and commercial applications.

The Trane GEH and GEV heat pumps feature advanced variable-speed technology, which allows them to adjust their output to match the current heating or cooling demand. This adaptability not only enhances comfort by maintaining a consistent indoor temperature but also leads to significant energy savings by reducing unnecessary energy consumption during partial-load conditions. By running more efficiently at lower speeds, these units reduce wear and tear on components, extending the lifespan of the system.

One of the defining characteristics of the GEH and GEV models is their high SEER (Seasonal Energy Efficiency Ratio) and HSPF (Heating Seasonal Performance Factor) ratings. These ratings demonstrate the units' ability to provide efficient heating and cooling throughout the year, contributing to lower energy bills. The use of R-410A refrigerant is another key feature, as it is both environmentally friendly and efficient, ensuring that these systems meet stringent regulatory standards while delivering reliable performance.

Installation flexibility is another highlight of the Trane GEH and GEV series. These units are designed to work seamlessly with existing HVAC systems, making retrofitting straightforward. Their compact design allows for easy placement, even in tight spaces, without compromising performance. Additionally, Trane's commitment to quality is evident in the construction of these heat pumps, as they are built to withstand harsh weather conditions and provide reliable service year after year.

Moreover, both the GEH and GEV models are equipped with integrated smart controls that simplify operation and maintenance. These controls allow homeowners and facility managers to monitor energy usage, adjusting settings remotely and scheduling maintenance checks to maximize efficiency. This technology not only enhances user experience but also promotes energy conservation through intelligent management.

In summary, Trane's GEH and GEV heat pumps stand out for their variable-speed technology, high efficiency ratings, installation flexibility, and smart controls. These features make them an ideal solution for those seeking a reliable, energy-efficient heating and cooling option, reflecting Trane's dedication to performance and sustainability.
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