H-IM-CU - Installation and Operations Manual - Part 25014601

Oct 24, 2026

Upload by Mimi

Installation and Operations Manual for the H-IM-CU condensing unit series. Covers general safety information for qualified personnel, including system pressurization with holding charge, evacuation before refrigerant charging, requirements for field wiring and code compliance, and warnings about pressure checks and safe discharge prior to opening the system or removing Schrader cores. Includes inspection responsibility guidance, shipment verification steps, and concealed damage reporting procedures. Provides a detailed table of contents spanning inspection, warranty, set points, rigging, piping, wiring, startup, balancing, controls, troubleshooting, and preventive maintenance.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages52

Reading Time2 h 11 min

AccessFree to download

General Safety Information

Inspection

Warranty Statement

DOE Walk-In Cooler Freezer AWEF Set Points

Space and Location Requirements

Condensing Unit Rigging and Mounting

Remote and Water Cooled Condensing Units Requirements

City & Tower Water Connections

Head Pressure Control

Phase Loss Monitor

Polyol Ester Lubricants

Refrigerant Piping

Suction Lines

Liquid Lines

Unit Cooler Piping

Line Sizing

Check System Pressure

Refrigerant Charging Instructions

Refrigerant Flooding Charge

Field Wiring

Check Out and Start Up

| | | | Installation and Operations Manual | | | --- | --- | --- | --- | --- | | | H-IM-CU September 2026 Part No. 25014601 | | | | | | Replaces July 2025
Condensing Units

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Table of Contents
General Safety Information............................................................................. 2
Inspection ............................................................................................................... 2
Warranty Statement........................................................................................... 2
DOE Walk-In Cooler Freezer AWEF Set Points......................................... 2
Space and Location Requirements ............................................................ 3
Condensing Unit Rigging and Mounting ................................................ 4
Remote and Water Cooled Condensing Units Requirements........ 5
City & Tower Water Connections .................................................................. 5
Head Pressure Control ...................................................................................... 6
Phase Loss Monitor............................................................................................. 7
Polyol Ester Lubricants ...................................................................................... 7
Refrigerant Piping ............................................................................................... 7
Suction Lines ......................................................................................................... 8
Liquid Lines ............................................................................................................ 8
Unit Cooler Piping............................................................................................... 8
Line Sizing.........................................................................................................9-23
Check System Pressure ...................................................................................24
Refrigerant Charging Instructions .............................................................24
Refrigerant Flooding Charge ................................................................25-28
Field Wiring...........................................................................................................29
Check Out and Start Up..................................................................................29
Start Up A2L Units.............................................................................................29
Operational Check Out ...................................................................................30
System Balancing ..............................................................................................30
General Sequence of Operation.................................................................31
Refrigeration Cycle............................................................................................31
Defrost Cycle........................................................................................................31
Demand Cooling System Design...............................................................31
Copeland Demand Cooling..........................................................................31
Electric Defrost Troubleshooting ...............................................................32
Orbus Control Board ............................................................................................... 33
System Troubleshooting Charts ..........................................................34-35
Preventive Maintenance Guidelines................................................................ 36
A2L Condensing Units ....................................................................................37
Installation Instructions.......................

FAQs

Who is allowed to perform installation and maintenance for this equipment?

Installation and maintenance must be performed only by qualified personnel familiar with this type of equipment.

What safety steps must be followed before charging refrigerant?

Inspect and check system pressure first and safely discharge the dry air or nitrogen holding charge before charging with refrigerant. Do not open the system or remove Schrader cores without checking the pressure first.

What should be done during inspection of delivered equipment?

Assign responsibility to a dependable individual to receive materials, carefully check each shipment against the bill of lading, and do not sign the shipping receipt until all listed items are accounted for. Check for concealed damage and report shortages or damages to the delivering carrier.

Oct 24, 2026

Upload by Mimi