Trane GEH, GEV manual Sequence Operation, Initial Unit Start-up

Page 74

Sequence

of Operation

Initial Unit Start-up

Note: Start-up for the Terminal Unit Controller (TUC) may be found in WSHP-IOP-1. Start-up for the Tracer ZN510 controller may be found in WSHP-IOP-2. Start-up for the Tracer ZN524 controller may be found in WSHP-PRB002-EN.

Start-up with the conventional thermostat is included below:

1.Set the thermostat to the highest position.

2.Set the thermostat system switch to COOL with the fan control to AUTO. The compressor should NOT run.

3.Reduce the thermostat setting until the compressor, reversing valve, solenoid valve, and loop pump are energized. Adjust water flow utilizing pressure/temperature plugs and comparing to tables contained in specification sheet data. Water leaving the heat exchanger should be warmer than the entering water temperature (approximately 9-12ºF); blower operation should be smooth; compressor and blower amps should be within data plate ratings; the suction line should be cool with no frost observed in the refrigerant circuit.

4.Check the cooling refrigerant pressures against values in Table 7. (Page 75).

5.Turn the thermostat system switch to the OFF position. Unit should stop running and the reversing valve should de- energize.

6.Leave unit off for approximately FIVE minutes to allow for pressure equalization.

7.Turn the thermostat to the lowest setting.

8.Set the thermostat system switch to the HEAT position.

9.Adjust the temperature setting upward until the unit is energized. Warm air should blow from the register. A water temperature decrease of approximately 5-9ºF leaving the heat exchanger should be noted. The blower and compressor operation should be smooth with no frost observed in the refrigeration circuit.

10.Check the heating refrigerant pressures against values in Table 7. (Page 75)

11.Set the thermostat to maintain the desired space temperature.

12.Instruct the owner on system operation.

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WSHP-SVX01D-EN

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Contents Installation Owner Diagnostics Later Design SequenceAmerican Standard Inc. All rights reserved Contents Pre-installation Checklist Fiberglass WoolGeneral Information Option Hot Gas Reheat Option Boilerless Control/Electric HeatOption Supplemental or Boilerless Electric Heat Economizer Weight Dimensions/WeightsShipping Weight With pallet 60 HZ 50 HZDimensions/Weights Clearance GEV 1/2 through 5 Ton Clearance Dimensions Figure GEV 6 through 10 Ton Clearance Dimensions FigureDimensions/Weights Left Return/Left Supply NptiDimensions/Weights Left Return/Back Supply Dimensions/Weights Left Return/Right Supply Dimensions/Weights Right Return/Left Supply Dimensions/Weights Right Return/Back Supply Dimensions/Weights Right Return/Right Supply Dimensions/Weights Left Return/Top Supply GEV Npti FPTDimensions/Weights Left Return/Back Supply Dimensions/Weights Right Return/Top Supply Dimensions/Weights Right Return/Back Supply Dimensional Data GEH-Right Return/Left Supply GEH 072-120 60 Hz GEH 072-090 50 HzDimensional Data GEH-Right Return/Back Supply Dimensional Data GEH-Left Return/Right Supply Dimensional Data GEH-Left Return/Back Supply GEH 150-180 60 Hz GEH 120-150 50 Hz Dimensional Data GEH-Right Return/Back Supply GEH 150-180 60 Hz GEH 120-150 60 Hz Dimensional Data GEH-Left Return/Back Supply Dimensions/Weights Front Return/Back Supply Dimensions/Weights Front Return/Top Supply Dimensions/Weights Back Return/Front Supply Dimensions/Weights Back Return/Top Supply 12 1/2 and 15 Ton 60 HZ 12 1/2 Ton 50 HZ Dimensions/Weights Back Return/Front Supply Dimensions/Weights Front Return/Top Supply Dimensions/Weights Back Return/Top Supply 25 Ton 60 HZ 20 Ton 50 HZ 60 HZ 50 HZ Dimensions/Weights Front Return/Top Supply Dimensions/Weights Back Return/Top Supply Dimensions/Weights Waterside Economizer Unit Filter SizeHanging Unit Unit Hanging ShippingDimensional Data Waterside Economizer Dimensional Data Waterside Economizer Dimensional Data Waterside Economizer Dimensional Data Waterside Economizer Unit Size 1/2 Ton 102 10 Ton 111 GEV 12 1/2 through 25 Ton Low Voltage Wiring AC & DC Requirements InstallationGeneral Installation Checks Filter InstallationSupply-Air Ductwork Return-Air DuctworkReturn-Air Duct Panel Sound Attenuation Pad Hanging the Horizontal UnitInstallation Cleaning and Flushing Water Loop Types of Hose ConnectionsInstallation for Multiple Compressor Units Connecting a Water Regulating ValveInstallation for Single Compressor Units Control Power Transformer Installation Power WiringField Installed Power Wiring Thermostat Location Installation Low Voltage WiringControls Using 24 VAC Color Red Controller Deluxe Board DiagnosticsColor Green ModeInstallation Air Flow Adjustment Air Flow Adjustment Through 25 ton units onlyInstallation Waterside Economizer VerifyInstallation Waterside Economizer Unit Cabinet to the unit compressor compartment center post Start-up Sequence Waterside Economizing Three-Way Valve Specifications Electrical Requirements E1-Electrical performanceFan Motor Num Minimum Maximum Electric E2-Electrical performanceModel No 024 030 036 GEV Volts Total Overcur Heat AmpacityE3-Electrical performance Protective Device E4-Electrical performanceModel No GEH GEV Volts E5-Electrical performance Model No GEV GEH VoltsFan Minimum Maximum Electric E6-Electrical performanceModel No GEH GEV Volts Total Overcur Heat Num Ampacity Rent Amps Protective DeviceE7-Electrical performance E8-Electrical minimum and maximumPre-Start Checklist Pre-Start-up ChecklistSequence Operation Initial Unit Start-upOperation Pressures Operating Pressures030 60 HZ 018 60 HZ024 60 HZ 036 60 HZ 030 50 HZ 040 60 HZ Entering Water Temp Flow060 60 HZ 042 60 HZ048 60 HZ Operating Data CoolingWater Flow Model Entering GEH/GEV Water Temp 072 60 HZ 090 60 HZ120 60 HZ Discharge Water Air Temp SureModel Entering Cooling Discharge Water Air TempUnit Size 60 HZ 50 HZ Water VolumeWater Pressure Drop PressureStart-up Checklist Log Job Name Model Number Date Serial NumberCondensate Trap MaintenancePreventive Maintenance Warranty Information Warranty Information Standard WarrantyTroubleshooting Checklist Hazardous Service ProceduresColor Red Controller Mode Deluxe ControlsUnit Wiring Basic Unit Wiring Deluxe Unit Wiring ZN510 Unit Wiring ZN524 460 V-60 HZ-3 PHTrane SV-UN-WSHP-SVX01C-0104

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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