Trane Essential Installation Procedures for WPVJ Heat Pump Systems

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Installation

General Installation Checks

The checklist below is a summary of the steps required to successfully in- stall a unit. This checklist is intended to acquaint the installing personnel with procedures required in the installation process. It does not replace the de- tailed instructions called out in the ap- plicable sections of this manual.

1Remove packaging and inspect the unit. Check the unit for shipping damage and material shortage; file a freight claim and notify appropri- ate sales representation.

Note: The vertical units have been tied to the skid by (8) shipping brackets with (16) 5/16" screws. Remove the (8) screws attached on the unit side, and (2) screws at- tached at the L bracket side. The unit may now be slid off of the skid. Re-attach (8) of the screws into the unit base pan.

2Verify the correct model, options and voltage from the unit name- plate.

3Verify the installation location of the unit will provide the required clearance for proper operation.

4Remove refrigeration access panel and inspect the unit. Be certain the refrigerant tubing has clearance from adjacent parts.

WARNING

Hazardous

Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

Main Electrical

5Verify the power supply complies with the unit nameplate specifica- tions.

6Inspect all control panel compo- nents; tighten any loose connec- tions.

7Connect properly sized and pro- tected power supply wiring to a field-supplied/installed disconnect switch and to the unit contactor (1K1) in the unit’s cabinet control box for equipment.

8Install proper grounding wires to an earth ground.

Note: All field-installed wiring must comply with NEC and applicable local codes.

Low Voltage Wiring (AC & DC) Requirements

9Connect properly sized control wir- ing to the proper termination points between the thermostat/ sensor and the terminal board in the unit’s control box.

Filter Installation

10Each unit ships with 1" filters. Do not operate the unit without fil- ters.

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Contents Installation Owner Diagnostics Later Design SequenceResponsible Refrigerant Practices Contents Microbial Growth Pre-installation ChecklistFiberglass Wool General Information Dimensions/Weights/ Clearance Improper Unit LiftDimensions Wpvj 018-024 LH Wpvj 018-024 RH Wpvj 030-042 LH Wpvj 030-042 RH Wpvj 048-072 LH Wpvj 048-072 RH Low Voltage Wiring AC & DC Requirements InstallationGeneral Installation Checks Filter InstallationUnit Installation Wpvj Water ConnectionUnit Installation Wphf Cleaning and Flushing Water Loop Connecting a Distributed Pump Kit to a Closed Loop SystemUsing Antifreeze Field Installed Power Wiring Control Power TransformerInstallation Low Voltage Wiring Thermostat LocationElectrical Requirements Ampacity DeviceRLA FLA RLA CSA Case WPHF057 Pre-Start Checklist Pre-Start-up ChecklistSequence Operation Operating Pressures WpvjOperating Pressure Water Pressure Drop Water VolumeStart-up Checklist and Log Flow ChecksStart-up Checklist Log Job Name Model Number Date Serial NumberHazardous Chemicals MaintenancePreventive Maintenance Warranty Information Warranty Information Standard WarrantyGeneral Operation TroubleshootingHazardous Service Procedures Operation with a Conventional ThermostatTroubleshooting Checklist Unit short cyclesUnit Wiring Wpvj Basic 24V Diagram Unit Wiring Wpvj Tracer ZN510 Diagram Unit Wiring Wphf Basic 24V Diagram Unit Wiring Wphf Tracer ZN510 Diagram Trane