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installation instructions
50CR024-036 Unit Dimensions
Models:
50CR
1
5
32
32
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32 pages
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Troubleshooting
Install
Routing Control Power Wires
Dimension
Maintenance
Start-Up Adjustments
Checklist
Safety
Line Power Connections
Pressure Switches
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Image 5
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A05299
Fig. 6 -
50CR024-036
Unit Dimensions
50CR
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Page 6
Page 5
Image 5
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Page 6
Contents
Table of Contents
Installation Instructions
Electrical Shock Hazard
Safety Considerations
Equipment Damage Hazard
Introduction
Roof Curb for Small Cabinet Roof Curb for Large Cabinet
Unit Leveling Tolerances
50CR024-036 Unit Dimensions
50CR042-060 Unit Dimensions
Inspection
Rig and Place Unit
Unit Falling Hazard
Property Damage Hazard
Rigging Bracket Under Unit Rain Lip
Provide for Condensate Disposal
Select and Install Ductwork
Electrical Operation Hazard
Physical Data Unit 50CR
Typical Installation
Connecting Ground Lead to Ground Screw
Routing Power Leads Into Unit
Routing Control Power Wires
HIGH-VOLTAGE Connections
Electrical Data-50CR
Electrical Data Legend
Wiring Schematics-50CR Single Phase
Wiring Schematics-50CR Three Phase
Line Power Connections
Accessory Installation
Unit Start-Up
PRE-START-UP FIRE, EXPLOSION, Electrical Shock Hazard
START-UP
Status Code 37, Heater Output Sensed on When not Energized
Status Code 45, Control Board Test Fault
Status Code 44, Motor Communication Fault
Verify Motor Winding Section
Status Code 41, Blower Motor Fault
Status Code 36, Heater Output not Sensed When Energized
Status Code 16, System Communication Fault
Status Code 25, Invalid Motor / Model Selection
Check for Refrigerant Leaks
Start-Up Adjustments
Sequence of Operation
Typical Heat Pump Operation, Cooling Mode
Defrost Control
Electric Heat Pressure Drop Table Small Cabinet
Unit Operation Hazard
Maintenance
Personal Injury and Unit Damage Hazard
Indoor Blower and Motor
Air Filter
Outdoor Coil, Indoor Coil, and Condensate Drain Pan
Outdoor Fan
Metering Devices-TXV & Accurater Piston
Pressure Switches
Indoor Airflow
Personal INJURY, Unit Operation Hazard
High-Pressure Switch
EXPLOSION, FIRE, Electrical Shock Hazard
Troubleshooting
LOSS-OF-CHARGE Switch
START-UP Checklist
System Information
Observe all warnings, cautions, and bold text
Troubleshooting Chart
Head pressure too low
Troubleshooting Chart Cont’d
START-UP Checklist
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