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48/50HJ004-014 specifications
Models:
48/50HJ004-014
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Troubleshooting
Install
Energy Recovery
on Power Up
Service
Connector
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Image 39
Fig. 19 — Typical Wiring Schematic (Standard Controls) (cont)
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Contents
Installation, Start-Up and Service Supplement
CONTENTS
SAFETY CONSIDERATIONS
GENERAL
INSTALLATION
Step 2 - Provide Unit Support
Fig. 1 - Shipping Packaging 48/50HJ004-006Shown
If electric control power or gas service is to be routed through the basepan, a field-installedaccessory thru-the-bottom connection must be used. Attach the accessory to the basepan per the information in the accessory installation instructions. Thru-the-bottomconnections must be installed before unit is set on roof
CONNECTOR
CONNECTOR
All panels must be in place when rigging
SIDE
REAR
RIGHT
LEFT
Page
Page
Page
Step 8 - Make Electrical Connections
Install field wiring as follows
control box. See Fig. 10. The raceway provides the UL required clearance between high- and low-voltagewiring
HEATER
17.9
HEATER
NOMINAL
40.7
20.9
47.9
NOMINAL
60.1
HEATER
68.0
68.0
NONE
C- Contactor COMP - Compressor
Fig. 7 - Power Wiring Connections
208/230-1-60 575-3-60 SIZE 007 ONLY
208/230-3-60AND SIZES LEGEND
Fig. 10 - Field Control Wiring Raceway 48HJ Shown
HOOD TOP
LIGHT COMMERCIAL THERMIDISTAT ACCESSORY
Step 3 - Install Light Commercial Thermidistat
on Power Up
Fig. 15 - Light Commercial Thermidistat Keypad
Fig. 16 - Light Commercial Thermidistat LCD
TO SELECT
OPERATIONAL INFORMATION
SERVICE
PRE-START-UP
START-UP
ROOFTOP UNIT
Fig. 17 - Unit Operation Flow Diagram
ENERGY RECOVERY
SECTION
OCCUPIED
UNOCCUPIED
TROUBLESHOOTING
Page
PremierLink
PWR - Power
Table 4 - Supply-AirDamper Troubleshooting
Table 3 - Heating and Cooling Troubleshooting
Copyright 2002 Carrier Corporation
62AQ
COMBINED ELECTRICAL COBRA ENERGY RECOVERY UNIT
Remove and Store in Job File
I. PRELIMINARY INFORMATION
IV. LIGHT COMMERCIAL THERMIDISTAT ACCESSORY
III. START-UPcont
AIRFLOWS 62AQ
