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National Comfort Product CPG41238-U Series User Manual

National Comfort Product CPG41238-U Series
44 pages
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This unit should
be installed in an
OUTSIDE WALL FOR
THRU-THE-WALL
INSTALLATION ONLY!
Please read the entire installation guide before starting the installation.
National Comfort Products
®
A Division of National Refrigeration & Air Conditioning Products, Inc.
539 Dunksferry Road • Bensalem, PA 19020 • (215) 244-1400 • 1-800-523-7138 • Fax: (215) 639-1674
CPG
U-Models
Gas
Heating
Electric
Cooling
HEATING & A/C EQUIPMENT
NATIONAL
COMFORT
PRODUCTS
®
Thru-the-Wall Packaged Heating & Cooling Units
Comfort Pack
Universal Series
Installation
Guide
80%
THERMAL
EFFICIENCY
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National Comfort Product CPG41238-U Series Specifications

General IconGeneral
SeriesCPG41238-U
Cooling Capacity (BTU)12000
Energy Efficiency Ratio (EER)11.0
Power Consumption (W)1200
Power Supply115V/60Hz
RefrigerantR-410A

Summary

Safety First

Before You Start

Installation

Drainage

Details on the unit's primary and secondary drain connections.

Clearances

Unit Location Considerations

Vent Termination Clearances for Direct Vented Installations in the USA

Electrical

High Voltage Power Supply

Electrical - Low Voltage

DSI Control Identification

Comfort Pack Dimension Drawing

Gas Furnace Specifications

Sequence of Operations (Gas Heat)

Step-by-step process for the gas heating cycle.

Abnormal Functions

Installation Codes

High Altitude Operation

Instructions for Changing Pressure Switch

Derating by Valve Outlet Pressure Adjustment for High Altitude Operation

Adjusting gas pressure for high altitude installations.

Venting

Gas Piping and Pressures

Valve Outlet Gas Pressure Setting

Gas Connection and View

Instructions on How to Check Valve Outlet Pressure

Procedure for measuring and adjusting gas valve outlet pressure.

Ignition System

Combustion Air Proving Switch

Limit Switch

Flame Rollout Switch

Burner

Gas Valve

Start Up

Operating Instructions and Operating Sequence

To Turn Off Gas To The Appliance

Steps to safely shut off the gas supply to the unit.

Check Installation After Start-Up

Special Notes for Extremely Cold Weather Areas

Maintenance and Service

Cooling Chassis

Information on the cooling chassis components and their maintenance.

Maintenance Schedule

Burner/Control Compartment

Inspect the Heat Exchanger

Visual inspection of the heat exchanger for cracks or holes.

Burner Service

Annual inspection and cleaning of the burner compartment.

Instructions for Burner Removal

Step-by-step guide to safely remove the burner assembly.

Inspect and Clean the Burner

Burner Orifice

Guidance on replacing the burner orifice when gas type changes.

Ignition System

Information on the igniter and flame sensor cleaning.

DSI Integrated Control Module

Venter Motor and Wheel Assembly

Instructions for removing and replacing the venter motor and wheel.

Pressure Switch

Flame Rollout Switch

Cause and correction for flame rollout switch activation.

Vent System

Annual inspection of the vent system joints and seams.

Troubleshooting

Diagnosing issues using the control module's LED signals.

Directions to Slide Out the Furnace

Steps for removing the furnace assembly from the cabinet.

Check Your Temperature Rise

DSI INTEGRATED CONTROL MODULE

FAN OFF DELAY

Settings for the fan off delay timer on the control module.

FIELD CONTROL WIRING

Guidelines for low voltage wiring lengths and gauge sizes.

Operation Sequence

Step-by-step guide for operating the unit after installation.

TROUBLE SHOOTING

Replacement Parts Guide

COMFORT PACK LIMITED WARRANTY

ENGINEERING SPECIFICATION GUIDE

Indoor Air Flow

Details on air intake and outlet configurations for the unit.

Filter

Information on the easily accessible factory filter and its retainer.

Slide Out Chassis

Features of the serviceable slide-out cooling section with service ports.

Secondary Drain

Description of the secondary condensate drain and its purpose.

Slide Out Furnace (Gas)

Information on the serviceable slide-out gas furnace assembly.

Sequencing Control (Electric)

Details on the two-stage heat sequencing triac control board for electric models.

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