Goodman GMPN040 User Manual

INSTALLATION & OPERATING
INSTRUCTIONS
for GMPN
CONDENSING GAS FURNACE
(CATEGORY IV)
(U.S. PAT. # 5,437,263)
EPA POLLUTION PREVENTER
E FF|CII_NCY
RATING
CERT_FIEO
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IF THIS FURNACE IS INSTALLED IN AN ENCLOSED AREA, SUCH AS A GARAGE OR
UTILITY ROOM, EITHER ALONE OR WITH ANY OTHER CARBON MONOXIDE PRODUCING
DEVICE (i.e. ATUOMOBLIE, SPACE HEATER, WATER HEATER, ETC.) INSURE THAT THE
ENCLOSED AREA IS PROPERLY VENTILATED.
WARNING
CARBON MONOXIDE (REFERRED TO AS CO) CAN CAUSE SERIOUS PERSONAL INJURY I
OR DEATH. I
WARN ING I
THIS FURNACE IS DESIGN CERTIFIED FOR INSTALLATION IN BUILDINGS CONSTRUCTED I
ON SITE ONLY. I
Goodman Manufacturing Company, L.P.
IO-151D 1501 Seamist, Houston, Texas 77008 12/01
REPLACEMENT PARTS

Goodman GMPN040 Specifications

General

Model	GMPN040
Heating Capacity	40, 000 BTU
Efficiency Rating	80% AFUE
Installation Type	Upflow/Horizontal
Warranty	10-Year Parts Limited Warranty with online registration
Heat Exchanger Material	Aluminized Steel
Stages	1

Summary

General Information

Installation

Guidance for installing the furnace according to national and local codes.

Location

Minimum Clearances to Combustible Surfaces

Specifies required clearances from the furnace to surrounding combustible materials.

Venting

Protection From Freezing

Instructions for protecting vent and drain systems from freezing in unheated spaces.

Supporting and Pitching the Vent

Guidelines for properly supporting and pitching vent pipes for condensate flow.

Joining Pipe and Fittings

Methods and cautions for connecting vent pipes and fittings.

Condensate Drain

Details on the condensate drain system for the condensing furnace.

Gas Piping & Gas Pipe Capacity Table

Information on gas pipe sizing and capacity for furnace operation.

Circulating Air Supply and Return Air

Electrical Supply Connections

Requirements for connecting the furnace to the electrical power supply.

Thermostat Installation

Guidance on locating and wiring the thermostat for furnace control.

Rating the Furnace

Setting the Heat Anticipator

Procedure for adjusting the thermostat's heat anticipator based on furnace amp draw.

Timing the Gas Meter

Method for determining the furnace's firing rate by timing the gas meter.

Safety Control Functions and Check-out Procedure

General

General guidelines for checking safety controls and their importance.

Main Limit Switch

Checks and operation of the main limit switch for over-temperature protection.

Vent Pressure Switch

Testing the vent pressure switch for proper operation and vent safety.

Flame Roll-out Switch

Operation and testing of flame roll-out switches for burner safety.

Integrated Fan / Ignition Control

Information on the electronic control for fan and ignition sequences.

Circulating Air Filters

Importance of clean filters and their maintenance for furnace operation.

Temperature Rise

Procedure for measuring and adjusting the furnace's temperature rise.

Motor Lubrication and Maintenance

Details on blower motor maintenance and lubrication requirements.

Service Instructions

General advice and precautions before performing service on the furnace.

Sequence of Operation

Step-by-step description of the furnace's heating and cooling operational cycles.

Removing an Existing Appliance

Inspecting & Cleaning the Heat Exchanger

Source of Combustion Air

Blower Off Delay

Explanation of the blower's off-delay timer and its settings.

Drain Connections

Electronic Air Cleaner Control

Wiring details for connecting an electronic air cleaner to the furnace.

Humidifier Control

Guidance on connecting a humidifier control (humidistat).

Lighting Instructions

Operating Instructions

Step-by-step guide for safely operating and lighting the furnace.