Duo-Therm 39325 Manuals

Manuals and User Guides for Duo-Therm 39325. We have 1 Duo-Therm 39325 manual available for free PDF download: Service Manual

Duo-Therm 39325 Service Manual

Duo-Therm 39325 Service Manual (128 pages)

Duo-Therm Air Conditioners & Heat Pumps Service manual

Brand: Duo-Therm | Category: Air Conditioner | Size: 3 MB

Table of Contents

Table of Contents
2
Installation
3
- AC Power Requirements
  3
- DC Power Requirements
  3
- Field Wiring
  3
- Airbox
  4
- Ducting System
  4
  - Roof Top Units
    4
    
    "S" Pattern Duct System
    8
    
    Freeze Control Installation
    10
  - Basement Units
    11
    
    Mounting
    11
    
    Clearances
    11
    
    Grills and Registers
    11
    
    Supply Air
    12
    
    Free Area
    13
    
    Evaporation Section
    13
    
    Inlet Air
    13
- Breaker
  13
- Thermostat Location
  14
  - Grills
    14
  - Outlet Air
    14
  - Example of Good Thermostat Location
    15
Operation
16
- Air Conditioners
  16
  - Mechanical Controls
    16
  - Bi-Metal Control System
    16
  - Analog Control System
    17
    
    Cooling Operation
    17
    
    Heating Operation
    17
    
    Analog Control Cooling Operation
    17
    
    Analog Control Electric Heat Strip Operation
    18
    
    Temperature Selector Buttons
    18
    
    Zone and Stage Selector Buttons
    18
  - Comfort Control Center System
    18
    
    General Information
    19
    
    ON/OFF Switch
    19
    
    Cooling Mode Operation
    19
    
    Fan Only Mode of Operation
    20
    
    Heat Pump Operation
    21
    
    Furnace Mode Operation
    21
    
    Heat Strip Mode Operation
    22
    
    Auto Fan
    22
    
    Refrigerant Compressor Time Delay
    22
    
    Power Interruption
    22
    
    To Set up the Secondary Stage
    23
    
    Aux. Heat
    23
    
    Defrost Cycle
    23
- Heat Pumps
  24
  - Reset
    24
  - Cooling Mode
    25
  - Heating Mode
    25
  - The Heating Mode
    25
  - Bi-Metal Control System
    26
  - Fan Operation
    26
  - Mechanical Controls
    26
  - Analog Control System
    27
  - Comfort Control Center System
    28
- Motors
  29
- Capacitor, Fan/Run
  30
- Capacitor, Start
  30
- Start Capacitor Without Resistor
  30
- Compressor
  31
- PTCR Device or Start Relay
  31
- Cold (Freeze) Control
  32
- Electric Heat Strip
  32
- Overload Protector
  32
- Selector Switch
  33
  - Selector Switch - Roof Top Air Conditioner
    33
  - Selector Switch - Roof Top Heat Pump
    33
- Changeover Thermostat
  34
- Remote Sensor
  34
- Ambient Sensor
  35
- Fuse
  36
- Reversing Valve
  36
- Transformer
  36
  - Relay, SPDT
    37
  - Relay, SPST
    37
  - Time Delay Relay
    37
  - Relay, (DPST)
    39
  - Relay, 2-Pole Furnace Blower
    39
  - Relay, Double Throw
    39
  - Circuit Board for Bi-Metal Thermostat
    40
- Printed Circuit Board
  40
- Cable Assembly
  54
  - Communication Type Cable
    55
  - Two through Eight Wire Cables
    55
  - Filter Drier & Capillary Tube
    57
  - Recharging
    57
- Sealed System
  57
- Refrigerant Vapor Pressure/Temperature Chart
  59
- 21. Wiring
  60
  - Typical Wiring Diagram for Roof Top Heat Pump
    60
  - Ambient Temperature
    61
  - Heat Gain
    61
  - Loose Parts
    61
- Other
  61
Components
29
Configuration
62

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