Trane GEV, GEH manual General Information

Page 5

General Information

Unit Nameplate

The unit nameplate is located on the outside of the control box access panel at the front of the unit. It includes the unit model number, serial number, electrical characteristics, refrigerant charge, and other pertinent unit data.

Compressor Nameplate

The nameplate for the compressors are located on the compressor shell.

Unit Description

Before shipment, each unit is leak test- ed, dehydrated, charged with refriger- ant and run tested for proper control operation.

Air-to-Refrigerant Coil

The air-to-refrigerant coil is aluminum fin, mechanically bonded to the cop- per tubing.

Water-to-Refrigerant Coil

The water-to-refrigerant coil is a cop- per or cupro-nickel (option) and steel tube (tube-within-a-tube)design, leak tested to assure there is no cross leak- age between the water tube (copper/ cupro-nickel) and refrigerant gas (steel tube).

Controls

The control system offered to con- trol the unit is a Basic 24 Volt control for the 1/2 through 5 ton sizes, a De- luxe 24 Volt control option for all unit sizes, a TracerTM ZN510, LonTalkTM certified control option for the 1/2 through 5 ton unit sizes, or a Tracer ZN524, LonTalk certified control op- tion for all unit sizes.

All power wiring to the equipment is made at the unit contactor for the 1/2 through 5 ton, and at the high voltage terminal block for the 6 through 25 ton. All low voltage wiring is made at the unit’s low voltage terminal board.

System Input Devices and Functions

A thermostat, zone sensor or building automation system is required to op- erate the water-source heat pump. The flexibility of having several mode ca-

pabilities depends upon the type of sensor and/or remote panel selected. Troubleshooting and connection dia- grams for the 24 Volt control systems may be located in the back of this man- ual. All digital control troubleshooting tips and connection diagrams are lo- cated in WSHP-IOP-2 (ZN510) or WSHP-PRB002-EN (ZN524).

Basic 24V Controls

Safety devices for equipment contain- ing the basic 24V control option in- clude a low pressure switch or suction line temperature sensor to prevent compressor operation during low tem- perature activity. The switch or sensor is set to activate at refrigerant pres- sures of 20 psig (1/2 to 5 ton units) or

7 psig (6 to 25 ton units) to fit most ap- plications.

A high pressure switch prevents com- pressor operation during high or ex- cessive discharge pressures exceeding 395 psig.

The lockout relay communicates the low or high pressure situation to the compressor to prevent operation. For units that contain a condensate over- flow switch option, a condensate over- flow situation will also be communicated to the compressor through the lockout relay if an over- flow condition exists. The relay may be reset at the thermostat, or by cy- cling power to the unit.

General alarm is accomplished through the lockout relay and is used in driving light emitting diodes (LEDs). This feature will drive dry contacts only, and cannot be used to drive field installed control inputs.

(option) Deluxe 24V Controls Units containing the Deluxe 24V con- trol design will incorporate a micro- processor-based control board. The Trane microprocessor board is factory wired to a terminal strip to provide all necessary terminals for field connec- tion. The deluxe board is equipped with a random start relay, anti-short cycle timer, brown out protection,

compressor disable, condensate over- flow, unit safety control, diagnostics and a generic relay (which may be available for field use). See page 56 for diagnostic information and thermostat connections.

(option) Tracer ZN510 or ZN524

Controls

The digital ZN510 and ZN524 control- ler is designed to support the 1/2 through 25 ton water-source heat pumps in either a standalone, peer-to- peer with a Tracer Loop Controller, or as a full building automation (open protocal) system. The 1/2 through 5 ton units that incorporate direct digital controls will typically come equipped with the ZN510 control board. The ex- ception to this would be if the equip- ment contained hot gas reheat, waterside economizer, or boilerless control with electric heat. The ZN524 digital control board is designed to in- terface and run these mechanical op- tions. All units over 5 tons would ship with the Tracer ZN524 control board.

For installation, operation and diag- nostics of the ZN510 and ZN524 WSHP-IOP-2 (ZN510) and/or WSHP- PRB002-EN (ZN524).

(option) Waterside Economizer Instructions for mechanical connec- tion of the waterside economizer to the water-source heat pump may be found in the dimensional section of this manual.

The waterside economizer is designed to begin economizing mode when wa- ter temperatures fall below the field adjustable temperature of 25, 35, 45, 55 or 65 F (for the Deluxe control op- tion), or below the programmed set- point (for the ZN524 control option).

When the temperature is less than the setpoint, fluid will flow into the econo- mizing coil, while simultaneously halt- ing mechanical operation of the compressor. Mechanical cooling will continue on a call for a second stage from the thermostat or system control.

WSHP-SVX01D-EN

5

Page 4 Page 6
Image 5
Page 4 Page 6
Contents Later Design Sequence Installation Owner DiagnosticsAmerican Standard Inc. All rights reserved Contents Fiberglass Wool Pre-installation ChecklistGeneral Information Option Hot Gas Reheat Option Boilerless Control/Electric HeatOption Supplemental or Boilerless Electric Heat Shipping Weight With pallet Dimensions/WeightsEconomizer Weight 60 HZ 50 HZDimensions/Weights Clearance GEV 6 through 10 Ton Clearance Dimensions Figure GEV 1/2 through 5 Ton Clearance Dimensions FigureNpti Dimensions/Weights Left Return/Left SupplyDimensions/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 GEV Npti FPT Dimensions/Weights Left Return/Top SupplyDimensions/Weights Left Return/Back Supply Dimensions/Weights Right Return/Top Supply Dimensions/Weights Right Return/Back Supply GEH 072-120 60 Hz GEH 072-090 50 Hz Dimensional Data GEH-Right Return/Left SupplyDimensional 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 Unit Filter Size Dimensions/Weights Waterside EconomizerUnit Hanging Shipping Hanging UnitDimensional 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 General Installation Checks InstallationLow Voltage Wiring AC & DC Requirements Filter InstallationReturn-Air Ductwork Supply-Air DuctworkReturn-Air Duct Panel Hanging the Horizontal Unit Sound Attenuation PadInstallation Types of Hose Connections Cleaning and Flushing Water LoopInstallation 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 Green Deluxe Board DiagnosticsColor Red Controller ModeInstallation Air Flow Adjustment Through 25 ton units only Air Flow AdjustmentVerify Installation Waterside EconomizerInstallation Waterside Economizer Unit Cabinet to the unit compressor compartment center post Start-up Sequence Waterside Economizing Three-Way Valve Specifications E1-Electrical performance Electrical RequirementsModel No 024 030 036 GEV Volts Total E2-Electrical performanceFan Motor Num Minimum Maximum Electric Overcur Heat AmpacityE3-Electrical performance Protective Device E4-Electrical performanceModel No GEH GEV Volts Model No GEV GEH Volts E5-Electrical performanceModel No GEH GEV Volts Total E6-Electrical performanceFan Minimum Maximum Electric Overcur Heat Num Ampacity Rent Amps Protective DeviceE8-Electrical minimum and maximum E7-Electrical performancePre-Start-up Checklist Pre-Start ChecklistInitial Unit Start-up Sequence OperationOperating Pressures Operation Pressures024 60 HZ 018 60 HZ030 60 HZ 036 60 HZ 030 50 HZ 040 60 HZ Entering Water Temp Flow048 60 HZ 042 60 HZ060 60 HZ Operating Data Cooling120 60 HZ Model Entering GEH/GEV Water Temp 072 60 HZ 090 60 HZWater Flow Discharge Water Air Temp SureCooling Discharge Water Air Temp Model EnteringWater Pressure Drop Water VolumeUnit Size 60 HZ 50 HZ PressureJob Name Model Number Date Serial Number Start-up Checklist LogCondensate Trap MaintenancePreventive Maintenance Warranty Information Standard Warranty Warranty InformationHazardous Service Procedures Troubleshooting ChecklistDeluxe Controls Color Red Controller ModeUnit Wiring Basic Unit Wiring Deluxe Unit Wiring ZN510 460 V-60 HZ-3 PH Unit Wiring ZN524SV-UN-WSHP-SVX01C-0104 Trane

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.
Top Page Image Contents