McQuay WHR Series

Overview of McQuay WHR SEASONPAK water chillers with MicroTech control.

Explains the model designation system for WHR units.

Guidance on checking equipment upon receipt for damage and correct model.

Precautions and methods for safely moving and handling the chiller unit.

Detailed instructions for moving the unit using skids, dollies, or hoisting.

Specifies ideal indoor installation locations and ambient temperature requirements.

Details required clearances for piping and servicing around the unit.

Guidance on unit placement, floor considerations, and shipping bolts.

Information on selecting and installing vibration isolators for the unit and piping.

General guidelines for water piping installation, codes, and support.

Specific requirements for chilled water piping, including flow direction and insulation.

Describes the factory-installed chilled water sensor and its importance.

Explains the necessity and installation of a water flow switch for unit protection.

Graph for determining evaporator water pressure drop based on flow rate.

Graph for determining condenser water pressure drop based on flow rate.

General guidelines for condenser water piping installation and considerations.

Methods for controlling head pressure in cooling tower systems.

Recommended control for head pressure when using well water.

Guidance on refrigerant piping for units with remote air-cooled condensers.

Information on units with factory-mounted condensers and potential issues.

Requirements for installing relief valve piping according to standards.

General guidelines for refrigerant piping installation and considerations.

Dimensional data and specifications for WHR-120DW to 200DW Arrangement W units.

Dimensional data and specifications for WHR-210DW to 240DW Arrangement W units.

Dimensional data for WHR-040DA to 110DA Arrangement A units.

Dimensional data for WHR-120DA to 200DA Arrangement A units.

Dimensional data for WHR-210DA to 240DA Arrangement A units.

Dimensional data for WHR-040DH to 110DH Arrangement H units.

Dimensional data for WHR-120DH to 200DH Arrangement H units.

Dimensional data for WHR-210DH to 240DH Arrangement H units.

Physical specifications for WHR units 040D through 110D.

Physical specifications for WHR units 120D through 170D.

Physical specifications for WHR units 175D through 240D.

Table detailing compressor motor amp draw for various unit sizes and voltages.

Continuation of compressor motor amp draw data for larger unit sizes.

Table providing wire sizing ampacity for different unit configurations and power supplies.

Continuation of wire sizing ampacity data for larger unit sizes.

Guidelines for field power wiring, including options and compliance with codes.

Reference to diagrams for control and safety wiring.

Explanation of the current transformer's function and wiring.

Explains the designations used in electrical schematics and diagrams.

Power wiring diagram for specific units and configurations.

Power wiring diagram for specific units and voltages.

Power wiring diagram for specific units and voltages.

Single point power wiring diagram for specific units and voltages.

Single point power wiring diagram for specific units and voltages.

Single point power wiring diagram for specific units and voltages.

Detailed checklist for pre-startup checks and preparations before operating the chiller.

Steps for initiating operation of the chiller after pre-startup checks are complete.

Procedure for temporarily shutting down the chiller and its associated pumps.

Steps to restart the chiller after a temporary shutdown period.

Procedure for safely shutting down the chiller for extended periods.

Steps for restarting the chiller after an extended shutdown.

General guidelines and best practices for maintaining the chiller unit.

Guidance on servicing the electrical control center and safety precautions.

Precautions for electrical terminals and maintenance.

Specifications for normal operating limits of the chiller.

Procedures for checking and maintaining compressor oil levels.

Explanation of oil equalization lines and their function.

How to interpret and maintain the refrigerant sightglass and indicator.

Information on crankcase heaters and their importance for startup.

Procedure for changing filter-driers in the refrigerant circuit.

Information on the liquid line solenoid valve and its maintenance.

Details on the thermostatic expansion valve, its function, and adjustment.

Description of the evaporator and procedures for tube replacement.

Description of the water-cooled condenser and its features.

Explanation of the hot gas bypass option and its operation.

Procedure for returning defective compressors under warranty.

Procedure for returning other defective parts under warranty.