ICP GNJ075N12A1 User Manual

NTC5/GNJ
NTN5/GNJ(NOxModels)
Upflow/Horizontal
Series
SAFETY REQUIREMENTS
/X
Recognize safety information. This is the safety-alert symbol _. When you see this symbol on the furnace and in instructions
manuals be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, or CAUTION. These words are used with the safety-alert symbol. DANGER
identifies the most serious hazards, those that will result in severe personal injury or death. WARNING signifies a hazard that could
result in personal injury or death. CAUTION is used to identify unsafe practices that could result in minor personal injuryor prod uct and
property damage.
Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified person-
nel should install, repair, or service heating equipment.
Untrained service personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations
must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags,
and on labels attached to or shipped with the unit and other safety precautions that may apply.
Follow all safety codes. Inthe United States, follow all safety codes includingthe current edition National Fuel Gas Code (NFGC) NFPA
No. 54/ANStZ223.1. In Canada, refer to the current edition of the National Standard Canada CAN/CGA-B149.1 - and .2-M91 Natural
Gas and Propane Installation Codes (NSCNGPI C). Wear safety glasses and work gloves. Have fire extinguisher available during start-
up and adjustment procedures and service calls.
These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residential
construction practices. We require these instructions as a minimum for a safe installation.
Design Certified
byAGA
Manufactured by:
International Comfort Products Corporation (USA)
Lewisburg, TN USA 37091
Table of Contents
1.Installation............................... 2
2.Combustion&VentilationAir ................. 4
3.GasVent Installation ....................... 6
4.HorizontalVenting ......................... 8
5.MasonryChimneyVenting ................... 8
6.GasSupplyand Piping ...................
7.ElectricalWiring ........................
8.DuctworkandFilter ......................
9.ChecksandAdjustments..................
10.FurnaceMaintenance ...................
9
12
13
14
16
This furnace is not designed for use in mobile
homes, trailers or recreational vehicles. Such
use could result in property damage, bodily in-
jury and/or death.
LP1 2/10/98 441 01 2304 02

ICP GNJ075N12A1 Specifications

General

Brand	ICP
Model	GNJ075N12A1
Category	Furnace
Language	English

Summary

Safety Requirements

1. Installation

Safety Rules and Precautions

Your unit is built to provide many years of safe and dependable service providing it is properly installed and maintained.

Freezing Temperature Protection

If your unit remains shut off during cold weather the water pipes could freeze and burst, resulting in serious water damage.

Location and Clearances

Horizontal Furnace Installation

Pressure Switch Relocation

Instructions for relocating the pressure switch when the furnace is installed in a left to right airflow position.

2. Combustion & Ventilation Air

Air Supply for Combustion

Requirements for determining free area of openings and connecting ducts for air supply, including confined and unconfined spaces.

Unconfined Space Installation

3. Gas Vent Installation

Venting Requirements and Checks

Instructions for Category I venting systems, including pipe types, clearances, and checks for proper venting and combustion air.

4. Horizontal Venting

Vent Termination

Guidance on terminating the vent through walls, considering water/ice damage.

5. Masonry Chimney Venting

Chimney and Venting Requirements

Includes chimney inspection, connector type, venting restrictions, and optional kit installation.

6. Gas Supply and Piping

Gas Supply and Input Checks

Guidelines for gas supply, input rating check using gas meter, and proper piping requirements.

Operation Above 2000' Altitude

Changing Orifices

Gas Piping and LP Requirements

Covers gas piping installation, shutoff valves, drip legs, and additional requirements for LP gas.

7. Electrical Wiring

Wiring and Component Connections

Includes power supply, thermostat, and optional equipment wiring for the furnace.

8. Ductwork and Filter

Duct System Design and Installation

Guidelines for ductwork connections, design, and installation requirements, including sealing and insulation.

Filters and Filter Rack Installation

Information on furnace filters, their sizes, and instructions for installing filter racks.

Inspection Panel

Requirement for a removable access panel in the outlet duct to check for heat exchanger leaks.

9. Checks and Adjustments

Pre-Operation Checks and Adjustments

Covers startup, gas supply pressure, and manifold gas pressure adjustment procedures.

Adjust Pilot Burner

Flame Checks and Temperature Rise

Procedures for inspecting pilot/main burner flames and checking air temperature rise for proper operation.

Changing Blower Speed

10. Furnace Maintenance