ICP G9MVE0802120A2 - User Manual

Printed in U.S.A. 440 04 4801 00 7/3/2014
SERVICE AND TECHNICAL
SUPPORT MANUAL
Two−Stage, Variable Speed ECM Blower Motor
35” Tall, High Efficiency Condensing Gas Furnace
(F/G)9MVE ’A2’ Series
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Safety Labeling and Signal Words
DANGER, WARNING, CAUTION, and NOTE
The signal words DANGER, WARNING,
CAUTION, and NOTE are used to identify levels of
hazard seriousness. The signal word DANGER is
only used on product labels to signify an immediate
hazard. The signal words WARNING, CAUTION,
and NOTE will be used on product labels and
throughout this manual and other manual that may
apply to the product.
DANGER − Immediate hazards which will result in
severe personal injury or death.
WARNING − Hazards or unsafe practices which
could result in severe personal injury or death.
CAUTION − Hazards or unsafe practices which
may result in minor personal injury or product or
property damage.
NOTE − Used to highlight suggestions which will
result in enhanced installation, reliability, or
operation.
!
WARNING
Signal Words in Manuals
The signal word CAUTION is used throughout
this manual in the following manner:
!
CAUTION
Signal Words on Product Labeling
Signal words are used in combination with
colors and/or pictures or product labels.
The signal word WARNING is used throughout
this manual in the following manner:
Safety−alert symbol
When you see this symbol on the unit and in
instructions or manuals, be alert to the
potential for personal injury.
TABLE OF CONTENTS
START−UP, ADJUSTMENT, AND SAFETY CHECK 4...........
SETUP SWITCHES 4......................................
PRIME CONDENSATE TRAP WITH WATER 4.................
PURGE GAS LINES 5......................................
ADJUSTMENTS 5.........................................
ADJUST TEMPERATURE RISE 11............................
ADJUST BLOWER OFF DELAY (HEAT MODE) 12..............
ADJUST COOLING AIRFLOW 12.............................
ADJUST CONTINUOUS FAN AIRFLOW 12....................
ADJUST THERMOSTAT HEAT ANTICIPATOR 14...............
CHECK SAFETY CONTROLS 14.............................
CHECKLIST 14.............................................
COOLING AND HEATING AIR DELIVERY - CFM 15.............
SERVICE AND MAINTENANCE PROCEDURES 17.............
ELECTRICAL CONTROLS AND WIRING 17...................
CLEANING AND/OR REPLACING AIR FILTER 19..............
BLOWER MOTOR AND WHEEL MAINTENANCE 20............
CLEANING BURNERS AND FLAME SENSOR 21...............
SERVICING HOT SURFACE IGNITER 22......................
FLUSHING COLLECTOR BOX AND DRAINAGE SYSTEM 23....
CLEANING CONDENSATE DRAIN AND TRAP 23..............
CLEANING HEAT EXCHANGERS 23..........................
SERVICE LABEL 26.........................................
WIRING DIAGRAM 27.......................................
TROUBLESHOOTING GUIDE − FLOW CHART 28..............
SEQUENCE OF OPERATION 30.............................
PARTS REPLACEMENT INFORMATION GUIDE 35.............
PRODUCT NOMENCLATURE 36.............................
MODELS
(F/G)9MVE0401410A2
(F/G)9MVE0401712A2
(F/G)9MVE0601412A2
(F/G)9MVE0601714A2
(F/G)9MVE0801716A2
(F/G)9MVE0802120A2
(F/G)9MVE1002120A2
(F/G)9MVE1202422A2
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manufacturer’s participation in the program.
For verification of certification for individual
products, go to www.ahridirectory.org .

Summary

Safety Considerations

Warning Statements

Start-Up, Adjustment, and Safety Check

Setup Switch Configuration

Details configuring furnace settings via DIP switches for various applications.

Manifold Pressure Adjustments

Manifold Pressure Adjustment Guide

Inlet Gas Pressure Verification

Procedure to verify inlet gas pressure using a manometer during operation.

Manifold Pressure Calibration

Low Fire Input Rate Adjustment

Steps to adjust manifold pressure for the low fire input rate.

High Fire Input Rate Adjustment

Steps to adjust manifold pressure for the high fire input rate.

Natural Gas Input Rate Verification

Temperature Rise Adjustments

Measuring Temperature Rise

How to measure temperature rise using thermometers in ducts.

Troubleshooting Temperature Rise

Blower Airflow Adjustments

Blower Off-Delay Setting

Cooling Airflow Settings

Setting airflow for high-speed and low-speed cooling applications.

Continuous Fan Airflow Setting

Adjusting airflow for continuous fan mode and low-speed cooling.

Furnace Setup Switch Settings

SW1 Setup Switch Descriptions

Detailed description of each SW1 setup switch function.

SW2 Setup Switch Descriptions

Detailed description of each SW2 setup switch function.

Air Delivery Table

Operational Checks and Safety Controls

Thermostat Heat Anticipator Adjustment

Safety Controls Verification

Steps to verify the proper function of safety controls like limit switches.

Start-Up Checklist

Service and Maintenance Procedures

Electrical Controls and Wiring Safety

Troubleshooting Guide Introduction

Fault Code Retrieval and Component Test

Retrieving Stored Fault Codes

Procedure to access and interpret stored diagnostic status codes.

Component Self-Test Function

Heat Exchanger Cleaning and Winterization

Primary Heat Exchanger Cleaning

Procedure for cleaning the primary heat exchanger.

Service Label and Troubleshooting Codes

Service Label Overview

Understanding Status Codes

Detailed list and explanation of diagnostic status codes and their meanings.

Troubleshooting Guide Flow Chart

Initial Status Light Check

Thermostat Signal Verification

Sequence of Operation

Two-Stage Heating with Single-Stage Thermostat

Describes operation with a single-stage thermostat in a two-stage heating mode.

Igniter Warm-Up and Flame Proving

Heating and Cooling Modes

Two-Stage Thermostat Operation

Operation with a two-stage thermostat for heating and cooling.

Cooling Mode Operation

Explains single-speed and two-speed cooling operational sequences.

ICP G9MVE0802120A2 Specifications

General

Brand	ICP
Model	G9MVE0802120A2
Category	Furnace
Language	English