ICP N9MP2 User Manual

90 SingleStage
CategoryIVFurnace
N9MP1 & N9MP2
*9MPD *Denotes Brands (C, H, T)
FANASSISTED,DIRECTOR
NON-DIRECTVENTGASFURNACE
SAFETY REQUIREMENTS
Recognize safety information. This is the safety- alert symbolZ_. 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. CAUTIONis used to identify unsafe practices that could result in minor personal injury or product and property damage. Note is used to
highlight suggestions that will result in enhanced installation, reliability, or operation.
Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified personnel 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. In the United States, follow all safety codes including the current edition National Fuel Gas Code (NFGC) ANSI
Z223.1-2002/NFPA No. 54-2002. In Canada, refer tothecurrent edition of the National Standard of Canada Natural Gas and Propane Installation
Code (NSCNGPIC) CSA B149.1-05. 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.
International Comfort Products, LLC
Lewisburg, TN 37091 U.S.A.
Table of Contents
INSTALLER: Affix these instructions
on or adjacent to the furnace.
CONSUMER: Retain these
instructions for future reference.
1.SafeInstallationRequirements................. 3
2.Installation ................................ 4
3.Combustion & Ventilation Air .................. 8
4.Vent& Combustion Air Piping ................ 12
5.GasSupply and Piping ...................... 30
6.ElectricalWiring ........................... 37
7. Ductwork and Filter ........................ 37
8. Checks and Adjustments .................... 39
9. Furnace Maintenance ....................... 42
10. Sequence of Operation & Diagnostics .......... 44
11. Concentric Vent Termination ................. 45
Tech Support and Parts ........................ 47
ELECTRIC SHOCK HAZARD
Failure to follow safety
warnings exactly could result
in serious injury and/or death.
Turn Off All Power Before
Servicing.
CARBON MONOXIDE POISONING AND FIRE
HAZARD.
Failure to follow safety warnings exactly could
result in serious injury, death, and/or property
damage.
This furnace is not designed for use in mobile
homes, trailers or recreational vehicles.
PrintedinU.S.A. 11/28/2005 440 01 1021 (02)

ICP N9MP2 Specifications

General

Brand	ICP
Model	N9MP2
Category	Furnace
Language	English

Summary

1. Safe Installation Requirements

Safety Rules

Rules for safe operation, maintenance, and hazards associated with furnace use.

2. Installation

Location and Clearances

Guidance on furnace placement, clearances, and layout requirements.

Downflow Furnace Installation

Specific instructions for downflow installation on combustible floors.

3. Combustion & Ventilation Air

Outdoor Combustion Air Method

Requirements for supplying outdoor air for combustion and ventilation.

Contaminated Combustion Air

How to evaluate and remedy contaminated combustion air exposure.

4. Vent and Combustion Air Piping

Vent and Combustion Air Piping Guidelines

General rules for vent and combustion air piping installation.

Vent Termination Clearances

Clearances required for vent pipe termination to ensure safety.

Condensate Drain Trap

Condensate Drain Trap Freeze Protection

Precautions for protecting the drain trap and line from freezing.

Connecting Vent and Combustion Air Piping

Combustion Air Pipe Connection

Connecting combustion air pipe for specific furnace types.

Vent Pipe Connection

Connecting the vent pipe to the furnace according to guidelines.

Joining Pipe and Fittings

Connecting Vent Pipes and Termination

How to connect vent pipes and terminate them properly.

Vertical Termination

Using Exterior Risers

Method for extending vent pipes above snow level or grade.

5. Concentric Termination

Concentric Vent Termination - Kit # NAHA001CV & NAHA002CV

Details about concentric vent termination kits for furnaces.

6. Gas Supply and Piping

Gas Piping Requirements

Requirements for gas supply lines and connections.

Manifold Gas Pressure Adjustment

How to adjust manifold gas pressure for proper operation.

Additional LP Connection Requirements

LP Conversion

Instructions for converting the furnace to propane gas.

General Derating Rules

High Altitude Air Pressure Switch

Information on air pressure switches for high altitudes.

7. Electrical Wiring

Power Supply Wiring

Requirements for electrical power supply and wiring connections.

Thermostat

Importance of thermostat location and settings for operation.

Furnace Control

Furnace Control Fuse

Details about the 5-amp fuse on the furnace control board.

8. Ductwork and Filter

Installation

General guidelines for installing air distribution systems.

Filters

Information on required filters and types for the furnace.

Downflow Furnace Installation

Combustible Floor Installation

Instructions for installing the furnace on combustible floors.

9. Checks and Adjustments

Startup

Procedures for starting up the furnace after installation.

Main Burner Flame Check

How to inspect the main burner flame for proper operation.

Temperature Rise Check

Changing Blower Speed

How to change blower speed taps for air temperature rise.

11. Sequence of Operation & Diagnostics

Cooling (Y) Request

Normal sequence of operation for cooling calls.

Continuous Circulating Fan (G) Request

Normal sequence for continuous fan operation.

Heating (W) Request

Normal sequence of operation for heating calls.

Control Board Diagnostic Codes

Specifications (N9MP1)

Gas & Ignition

Specifications for gas type, valve, and ignition systems.

Limits & Controls

Specifications for safety switches and control limits.

Specifications (N9MP2)

Specifications (*9MPD)

CIRCULATION AIR BLOWER DATA (CFM #)

MAX CFM's

Maximum airflow ratings for filters based on size.

Wiring Diagram

Connection Diagram

Electrical connection diagram for the furnace components.

Ladder Diagram

Ladder logic diagram illustrating furnace operation.

Replacement Parts - N9MP1 & N9MP2

Replacement Parts - *9MPD