KeepRite F9MAC Series, Service And Technical Support Manual

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Printed in U.S.A.
440 04 4201 03
July 2012
SERVICE AND TECHNICAL
SUPPORT MANUAL
Modulating, Variable Speed Blower Motor
35” Tall, High Efficiency Condensing Gas Furnace
(F/G)9MAC
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 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)9MAC0601714A
(F/G)9MAC0602120A
(F/G)9MAC0801714A
(F/G)9MAC0802120A
(F/G)9MAC1002122A
(F/G)9MAC1202422A
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 .