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35" Tall, High Efficiency Condensing Gas Furnace
DANGER, WARNING, CAUTION, and NOTE
The
signal
words
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.
TABLE OF CONTENTS
START−UP CHECK SHEET
START−UP, ADJUSTMENT, AND SAFETY CHECK
PRIME CONDENSATE TRAP WITH WATER
PURGE GAS LINES
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ADJUST TEMPERATURE RISE
ADJUST BLOWER OFF DELAY (HEAT MODE)
ADJUST COOLING AIRFLOW
ADJUST THERMOSTAT HEAT ANTICIPATOR
CHECK SAFETY CONTROLS
CHECKLIST
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SERVICE AND MAINTENANCE PROCEDURES
RETRIEVING STORED FAULT CODES
COMPONENT SELF−TEST
CARE AND MAINTENANCE
CLEANING AND/OR REPLACING AIR FILTER
BLOWER MOTOR AND WHEEL MAINTENANCE
CLEANING BURNERS AND FLAME SENSOR
SERVICING HOT SURFACE IGNITER
FLUSHING COLLECTOR BOX AND DRAINAGE SYSTEM
CLEANING CONDENSATE DRAIN AND TRAP
CLEANING HEAT EXCHANGERS
Printed in U.S.A.
SERVICE AND TECHNICAL
SUPPORT MANUAL
Single Stage, PSC Blower Motor
F9MES (A Series) 220−V 50Hz
Save this manual for future reference.
Safety Labeling and Signal Words
DANGER,
WARNING,
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Signal Words in Manuals
The signal word WARNING is used throughout
this manual in the following manner:
WARNING
!
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.
Safety−alert symbol
When you see this symbol on the unit and in
instructions or manuals, be alert to the
potential for personal injury.
3
WINTERIZATION
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SERVICE LABEL
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WIRING DIAGRAM
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TROUBLESHOOTING − FLOW CHART
4
SEQUENCE OF OPERATION
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PARTS REPLACEMENT INFORMATION GUIDE
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PRODUCT NOMENCLATURE
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F9MES1002120A
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F9MES1202420A
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F9MES1402420A
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MODELS
440 04 4900 04
8/14/2017
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Related Manuals for International comfort products F9MES
Summary of Contents for International comfort products F9MES
- Page 1 SERVICE AND TECHNICAL SUPPORT MANUAL Single Stage, PSC Blower Motor 35” Tall, High Efficiency Condensing Gas Furnace F9MES (A Series) 220−V 50Hz Save this manual for future reference. Safety Labeling and Signal Words DANGER, WARNING, CAUTION, and NOTE Signal Words in Manuals...
- Page 2 SAFETY CONSIDERATIONS WARNING Improper ins t allation, adjus t ment, alteration, serv ic e, maintenance, or use can cause explosion, fire, electrical shock, PERSONAL INJURY, AND/OR PROPERTY or other conditions which may cause death, personal injury, or DAMAGE HAZARD property damage. Consult a qualified installer, service agency, Failure to carefully read and follow this warning could or your distributor or branch for information or assistance.
- Page 3 SERVICE AND TECHNICAL MANUAL Gas Furnace: F9MES START−UP CHECK SHEET For PSC 220−V 50Hz Models F9MES (This sheet is optional. Keep for future reference.) Date of Start−Up: Calculated Input (BTU) Rate: (See Checks and Adjustments Section). Dealer Name: Heating Check...
- Page 4 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES START−UP, ADJUSTMENT, AND SAFETY 2. Connect field-supplied 5/8-in. (16 mm) ID tube with attached funnel (see Figure 1) to upper collector box CHECK drain connection. NOTICE 3. Pour one quart (liter) of water into funnel/tube. Water should run through collector box, overfill condensate trap, and flow into open field drain.
- Page 5 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 1. Obtain average yearly gas heat value (at installed CAUTION altitude) from local gas supplier. 2. Obtain average yearly gas specific gravity from local gas FURNACE DAMAGE HAZARD supplier. Failure to follow this caution may result in reduced furnace 3.
- Page 6 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES the 1/8 inch NPT plug from the inlet pressure tap on the Automatic Gas Valve (Single Stage) Figure 3 gas valve. without Tower Pressure Ports 3. Connect a manometer to the inlet pressure tap on gas ON/OFF Switch valve.
- Page 7 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES required input from Step 1, increase manifold c. Tighten set screw on manifold tower pressure tap pressure to increase input or decrease manifold with 3/32−in. hex wrench, or if 1/8−in. NPT plug was pressure to decrease input.
- Page 8 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Table 2 Gas Rate (CU ft./hr) SIZE OF TEST DIAL SIZE OF TEST DIAL SECONDS SECONDS FOR 1 REVOLUTION FOR 1 REVOLUTION 1 Cu Ft. 2 Cu Ft. 5 Cu Ft. 1 Cu Ft.
- Page 9 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Table 3 Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate − Single Stage L12F047A 440 04 4900 04 Specifications subject to change without notice.
- Page 10 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Table 3 (CONT.) Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate − Single Stage L12F047B Adjust Temperature Rise If the temperature rise is outside this range, check the following: NOTE: Blower door must be installed when taking temperature 1.
- Page 11 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Change the blower speed taps as required to maintain proper Figure 5 Amp. Draw Check with Ammeter temperature rise for Heating and Cooling as described above. To change blower motor speed selections for heating mode, THERMOSTAT SUBBASE remove blower motor lead from control HEAT terminal(s).
- Page 12 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Checklist 5. Verify that the Status LED has heartbeat (bright−dim). If not, check that the power supply is energized and that 1. Put away tools and instruments. Clean up debris. the blower door is secure. See Figure 14 to interpret 2.
- Page 13 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES SERVICE AND MAINTENANCE Figure 6 Multipoise Orientations PROCEDURES Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. A qualified service person should inspect the furnace once a year.
- Page 14 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Proper instrumentation is required to service electrical controls. blower door. The green furnace control LED is either ON The control in this furnace is equipped with a Status Code LED heartbeat, off or a code composed of 1 or 2 digits. The first digit (Light−Emitting Diode) to aid in installation, servicing, and...
- Page 15 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Care and Maintenance 3. Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary. WARNING 4. Inspect burner compartment before each heating season for rust, corrosion, soot or excessive dust. If necessary,...
- Page 16 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 2. Remove blower door. Figure 8 Blower Assembly 3. All factory wires can be left connected, but field MOTOR SHAFT FLAT thermostat and accessory wiring may need to be disconnected depending on their length and routing.
- Page 17 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 14. Reinstall 2 screws securing blower assembly to blower 1. Disconnect power at external disconnect, fuse or circuit deck. breaker. 15. Reconnect blower leads to furnace control. Refer to 2. Turn off gas at external shut-off or gas meter.
- Page 18 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 5. Insert the orifices in the support rings of the burners. 14. Check for gas leaks with a commercially available soap solution made specifically for the detection of leaks. NOTE: If manifold does not fit flush against the burner, do not 15.
- Page 19 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 4. Remove the collector box plug from the top port on the 6. Connect condensate drain elbow or drain extension upper corner of the collector box. (See Figure 1) elbow to the condensate trap 5.
- Page 20 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 7. Clean heat exchanger openings with a vacuum and a Secondary Heat Exchangers soft brush. (See Figure 12) The condensing side (inside) of the secondary heat exchanger CANNOT be serviced or inspected without complete removal of...
- Page 21 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Figure 14 Service Label 339462−2 Rev A 440 04 4900 04 Specifications subject to change without notice.
- Page 22 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 339542−2 Rev A 440 04 4900 04 Specifications subject to change without notice.
- Page 23 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Figure 15 Wiring Diagram 339462−2 Rev A 440 04 4900 04 Specifications subject to change without notice.
- Page 24 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES 339542−2 Rev A 440 04 4900 04 Specifications subject to change without notice.
- Page 25 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Figure 16 Troubleshooting − Flow Chart 440 04 4900 04 Specifications subject to change without notice.
- Page 26 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES Figure 16 (CONT.) Troubleshooting − Flow Chart L12F048 440 04 4900 04 Specifications subject to change without notice.
- Page 27 SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace: F9MES SEQUENCE OF OPERATION and air cleaner terminal EAC will remain energized for 108, 144, 180, or 216 seconds (depending on the NOTE: Furnace control must be grounded for proper operation heat−OFF delay selection). Note board selections are or control will lock out.
- Page 28 CABINET WIDTH COOLING AIRFLOW 20 = 2000 CFM (max) SALES (MAJOR) REVISION DIGIT ENGINEERING (MINOR) REVISION DIGIT Copyright 2017 International Comfort Products S PO Box 128 S Lewisburg, TN 37091 USA 440 04 4900 04 Specifications subject to change without notice.
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