Printed in U.S.A.
440 04 4700 00
Aug. 2012
SERVICE AND TECHNICAL
SUPPORT MANUAL
Modulating, Variable Speed Blower Motor
35” Tall, High Efficiency Condensing Gas Furnace
(F/G)9MAE
Save this manual for future reference.
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
. . . . . . . . . . .
SELECT SETUP SWITCH POSITIONS
4
. . . . . . . . . . . . . . . . . . . . .
PRIME CONDENSATE TRAP WITH WATER
4
. . . . . . . . . . . . . . . . .
PURGE GAS LINES
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTMENTS
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUST TEMPERATURE RISE
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUST BLOWER OFF DELAY (HEAT MODE)
9
. . . . . . . . . . . . . .
ADJUST COOLING AIRFLOW
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUST CONTINUOUS FAN AIRFLOW
9
. . . . . . . . . . . . . . . . . . . .
ADJUST THERMOSTAT HEAT ANTICIPATOR
11
. . . . . . . . . . . . . . .
CHECK SAFETY CONTROLS
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKLIST
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING AND HEATING AIR DELIVERY - CFM
17
. . . . . . . . . . . . .
SERVICE AND MAINTENANCE PROCEDURES
21
. . . . . . . . . . . . .
ELECTRICAL CONTROLS AND WIRING
21
. . . . . . . . . . . . . . . . . . .
CLEANING AND/OR REPLACING AIR FILTER
23
. . . . . . . . . . . . . .
CLEANING BURNERS AND FLAME SENSOR
25
. . . . . . . . . . . . . . .
SERVICING HOT SURFACE IGNITER
26
. . . . . . . . . . . . . . . . . . . . . .
FLUSHING COLLECTOR BOX AND DRAINAGE SYSTEM
27
. . . .
CLEANING CONDENSATE DRAIN AND TRAP
27
. . . . . . . . . . . . . .
WINTERIZATION
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE LABEL
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING CHART
−
FLOW CHART
31
. . . . . . . . . . . . .
TROUBLESHOOTING GUIDE
−
FLOW CHART
32
. . . . . . . . . . . . . .
SEQUENCE OF OPERATION
34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARTS REPLACEMENT INFORMATION GUIDE
38
. . . . . . . . . . . . .
PRODUCT NOMENCLATURE
39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MODELS
(F/G)9MAE0601714A
(F/G)9MAE0602120A
(F/G)9MAE0801714A
(F/G)9MAE0802120A
(F/G)9MAE1002122A
(F/G)9MAE1202422A
Use of the AHRI Certified TM Mark indicates a
manufacturer’s participation in the program.
For verification of certification for individual
products, go to www.ahridirectory.org .
