Carrier 48EYD044 Manuals

Manuals and User Guides for Carrier 48EYD044. We have 1 Carrier 48EYD044 manual available for free PDF download: Installation And Service Instructions Manual

Carrier 48EYD044 Installation And Service Instructions Manual

Carrier 48EYD044 Installation And Service Instructions Manual (65 pages)

Single Package Rooftop Units Electric Cooling/Gas Heating

Brand: Carrier | Category: Gas Heater | Size: 1.42 MB

Table of Contents

Table of Contents
1
Safety Considerations
1
Installation
1
Provide Unit Support
1
Step 2 - Rig and Place Unit
2
- Alternate Unit Support
  2
- Roof Mount
  2
Step 3 - Field Fabricate Ductwork
2
Step 4 - Install Flue Hood
12
Step 8 - Make Electrical Connections
16
- Control Board Diagram
  17
- Electrical Data
  18
- Field Control Wiring
  21
Step 9 - Make Outdoor-Air Inlet
24
Start-Up
31
- Time Guard Circuit
  44
- Head Pressure Control
  44
- Capacity Control, Cooling
  44
Service
44
- Combustion-Air Blower
  45
- Main Burners
  45
- Flue Gas Passageways
  45
- Lubrication
  45
- Evaporator Fan Service and Replacement
  46
- Belt Tension Adjustment
  46
- Typical Gas Heating Section
  46
- Gas Heat Section Details
  46
- Evaporator-Fan Motor Replacement
  47
- Condenser-Fan Adjustment
  47
- Power Failure
  47
- Gas Valve Adjustment
  47
- Overtemperature
  48
- Overcurrent
  48
- Compressor Protection
  48
- Main Burner Removal
  48
- Evaporator Fan Motor Protection
  49
- Condenser-Fan Motor Protection
  49
- High- and Low-Pressure Switches
  49
- Compressor Lockout Logic
  49
- Typical Wiring Schematics
  50
- Typical VAV 115-V Control Circuit
  52
- Typical CV 115-V Control Circuit
  53
- Typical VAV 24-V Control Circuit
  54
- Typical CV 24-V Control Circuit
  55
- Typical Refrigerant Circuiting
  56
Troubleshooting
56
Start-Up Checklist
63

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