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Defrost Board

 

Replacement Kit

Please read the entire installation guide before starting the installation. 

All phases of this installation must comply with National, State and Local codes. 

This manual must be left with the homeowner for future reference.

National Comfort Products

A Division of National Refrigeration and Air Conditioning Products, Inc.

 

539 Dunksferry Road   •   Bensalem, PA 19020-5908

(800) 523-7138

   •   Fax (215) 639-1674

www.nationalcomfortproducts.com

 

HEATING & A/C EQUIPMENT

NATIONAL

COMFORT

PRODUCTS

®

Go Thru-the-Wall

HEATING & A/C EQUIPMENT

NATIONAL

COMFORT

PRODUCTS

®

Installation  

Guide

Thru-the-Wall Comfort for all types of Multi-Family Construction

Summary of Contents for NCHP-018-1019

Page 1: ...wner for future reference National Comfort Products A Division of National Refrigeration and Air Conditioning Products Inc 539 Dunksferry Road Bensalem PA 19020 5908 800 523 7138 Fax 215 639 1674 www...

Page 2: ...Important This document is customer property and is to remain with this unit DO NOT DESTROY OR THROW AWAY THIS MANUAL IT SHOULD BE KEPT IN A SAFE PLACE FOR FUTURE REFERENCE...

Page 3: ...placement Kit Safety Warnings Page 4 Defrost Board Replacement Kit Compatibility Page 4 Defrost Board Replacement Kit Installation Page 5 Defrost Board Wiring Diagram Page 9 Defrost Board Replacement...

Page 4: ...alified licensed service personnel for proper installation adjustment and operation of this unit Read these instructions thoroughly before attempting installation or operation Failure to follow these...

Page 5: ...panel from the cabinet 2 Disconnect all wires from the control board Remove the four fasteners securing the board to the control box and remove the board 3 Align the defrost board bracket with the fo...

Page 6: ...cover the sensor with cork tape 7 Feed the white plastic temperature sensor through the 3 8 hole on the right side of the coil Push through the grille 8 Alternatively if the model does not have a 3 8...

Page 7: ...es to the control board Refer to the wiring diagram included with the kit or on page 9 of this manual 10 Change the defrost curve setting on the control board to match your unit Refer to page 8 for de...

Page 8: ...the outdoor coil accumulates frost Each system can accumulate frost on the outdoor coil at different rates It is NECESSARY for the installer to check that the appropriate defrost curve is selected fo...

Page 9: ...TEMP SENSOR RV REVERSING VALVE 14262099 KIT 1 6 2023 JOB NUMBER DATE DRAWN BY BS WIRING DIAGRAM 14299236 CC Coil HPS LPS Defrost Board Replacement Kit C C RV CC OR Y C OCT CFM Fan OCT C NC DB FAX 215...

Page 10: ...Coil Defrost Sensor 142 60 025 4 NHPA Ambient Defrost Sensor 142 60 026 5 NHP Defrost Control Board 142 62 099 6 Defrost Board Replacement IOM 142 99 242 7 Part Bag 7x8 5 386 8 8 Wire Tie T59 033 9 Co...

Page 11: ...This Page Left Intentionally Blank...

Page 12: ...3 HEATING A C EQUIPMENT NATIONAL COMFORT PRODUCTS National Comfort Products A Division of National Refrigeration Air Conditioning Products Inc 539 Dunksferry Road Bensalem PA 19020 1 800 523 7138 Fax...

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