National Comfort Products CPG41838-U, Instruction Manual

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Chassis (Cooling Section)
Cooling Chassis
The Comfort Packs most serviceable feature is the slide-out cooling chassis.
The cooling chassis consists of a complete refrigeration circuit for cooling and gives the ability
of removal from the entire Comfort Pack unit for service and troubleshooting. The integral
components of the cooling chassis are as follows:
• Evaporator Blower Motor
• Condenser Fan Motor
• Compressor
• Evaporator Coil
• Condenser Coil
• TXV or Capillary Metering Device
• Control Deck
- Compressor, Contactor, Run Capacitors, Transformer
- Specific Blower Controls
- Positive Temperature Coefficient Resistors or Hard Start Devices
The slide out chassis can be field swapped with another chassis of similar capacity. If a U
series chassis is being installed into an older A, B, C, D, E or M series cabinet please make sure
a Chassis Conversion Kit is used (P#14208604-KIT).
If the chassis needing service must be pulled completely out and tested on site. Chassis
extension plugs may be used to operate the chassis outside but still in front of the cabinet
(P#14230035-KIT).
The chassis can be serviced wherever a 208/230 Volt receptacle is available. Using the bench
test field wiring harness (P# 14230031), the chassis can be removed and relocated for service
then field tested at a remote location.
The Slide-Out Chassis
The slide-out cooling chassis can be easily removed so long that the shipping bolts have been
removed prior to installation from both sides of the cabinet.