Table of Contents
Advertisement
Quick Links
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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS RATE (CU FT./HR)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printed in U.S.A.
SERVICE AND TECHNICAL
SUPPORT MANUAL
Single Stage, PSC Blower Motor
Save this manual for future reference.
Safety Labeling and Signal Words
DANGER,
WARNING,
. . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
WFSR
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
3
3
3
3
4
4
6
6
6
6
6
6
7
7
8
10
12
18
22
26
MODELS
WFSR040A030
WFSR060B042
WFSR080B048
WFSR080C060
WFSR100C042
WFSR100C060
WFSR120D060
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 .
440 04 7101 09
10/15/2018
Advertisement
Table of Contents
Related Manuals for International comfort products WFSR040A030
Summary of Contents for International comfort products WFSR040A030
-
Page 1: Table Of Contents
START−UP, ADJUSTMENT, AND SAFETY CHECK ... WFSR040A030 GENERAL .......... - 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 DAMAGE or other conditions which may cause death, personal injury, or 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: Start−Up, Adjustment, And Safety Check
START−UP, ADJUSTMENT, AND SAFETY Prime Condensate Trap with Water CHECK WARNING NOTICE CARBON MONOXIDE POISONING HAZARD Failure to follow these warnings could result in IMPORTANT INSTALLATION START−UP personal injury or death. PROCEDURES Failure to use a properly configured trap or NOT Failure to follow this procedure may result in a nuisance water-priming trap before operating furnace may allow smoke or odor complaint. -
Page 4: Check Inlet Gas Pressure
instructions to match the required orifice to the manifold CAUTION pressure to the heat content and specific gravity of the gas. To do this: 1. Obtain average yearly gas heat value (at installed FURNACE DAMAGE HAZARD altitude) from local gas supplier. Failure to follow this caution may result in reduced 2. -
Page 5: Adjust Manifold Pressure
11. Turn gas supply manual shutoff valve to OFF Main burner flame should be clear blue, almost position. transparent (See Fig. 12). i. Remove jumper R to W. 12. Turn off furnace power supply. 2. Verify natural gas input rate by clocking meter. 13. -
Page 6: Adjust Temperature Rise
TWINNING AND/OR COMPONENT TEST BLOWER OFF-DELAY TERMINAL J2 JUMPER BLOWER OFF-DELAY HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX.) 24-V THERMOSTAT TERMINALS TRANSFORMER 24-VAC CONNECTIONS TEST/TWIN 0.5 AMP@24VAC 3-AMP FUSE FUSE 3-AMP SEC-2 SEC-1 LED OPERATION & EAC-2 DIAGNOSTIC LIGHT PL1-LOW VOLTAGE MAIN HARNESS CONNECTOR 115-VAC(L2)NEUTRAL CONNECTIONS... -
Page 7: Adjust Blower Off Delay (Heat Mode)
4. Set heat anticipator on thermostat per thermostat WARNING instructions and install on sub-base or wall. 5. Install blower access door. Electronic thermostat: Set cycle rate for 3 cycles per hr. ELECTRICAL OPERATION HAZARD Check Safety Controls Failure to follow this warning could result in personal The flame sensor, gas valve, and pressure switch were all injury or death. -
Page 8: Altitude Derate Multiplier For U.s.a
Table 2 – Altitude Derate Multiplier for U.S.A. THERMOSTAT SUBBASE TERMINALS WITH PERCENT DERATE ALTITUDE THERMOSTAT REMOVED MULTIPLIER (ANITICIPATOR, CLOCK, ETC., DERATE FACTOR* MUST BE OUT OF CIRCUIT.) 0–2000 0−610 1.00 HOOK-AROUND AMMETER 2001–3000 610−914 4−6 0.95 3001–4000 914−1219 6−8 0.93 4001–5000 1219−1524... - Page 9 Table 3 – Gas Rate (CU ft./hr) SECONDS SIZE OF TEST DIAL SECONDS SIZE OF TEST DIAL FOR 1 REVOLUTION FOR 1 REVOLUTION 1 Cu Ft. 2 Cu Ft. 5 Cu Ft. 1 Cu Ft. 2 Cu Ft. 5 Cu Ft. 1800 1636 1500...
- Page 10 338309-201 Rev. E A11602 Fig. 5 − Service Label Information 440 04 7101 09 Specifications subject to change without notice.
-
Page 11: Orifice Size And Manifold Pressure
Table 4 – Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate SINGLE-STAGE FURNACE (TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE RANGE HEAT VALUE 0.58 0.60 0.62 0.64 AT ALTITUDE Orifice Manifold Orifice... - Page 12 Table 4 − Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate (Cont.) SINGLE-STAGE FURNACE (TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL) ALTITUDE RANGE HEAT VALUE 0.58 0.60 0.62 0.64 AT ALTITUDE Orifice Manifold...
-
Page 13: Service And Maintenance Procedures
SERVICE AND MAINTENANCE Example: Nominal break point on pressure switch is 0.68−in. W.C. The minimum break point of the switch is PROCEDURES 0.63−in. W.C. The maximum break point of the switch is Untrained personnel can perform basic maintenance func- 0.73−in. W.C. The maximum make point of the switch is tions such as cleaning and replacing air filters. - Page 14 THE BLOWER IS LOCATED BELOW THE BURNER SECTION, AND CONDITIONED AIR IS DISCHARGED UPWARD. THE BLOWER IS LOCATED TO THE RIGHT OF THE BURNER SECTION, AND AIR CONDITIONED AIR IS DISCHARGED TO THE LEFT. THE BLOWER IS THE BLOWER IS LOCATED TO THE LEFT LOCATED ABOVE THE OF THE BURNER SECTION,...
- Page 15 4. For approximately 2 sec, short (jumper) the COM-24v For continuing high performance and to minimize possible terminal on control to the TEST/TWIN 3/16—in. (5 furnace failure, periodic maintenance must be performed on mm) quick-connect terminal on control until the LED this furnace.
- Page 16 b. Separate the pipes from the couplings and move WARNING them aside. c. Loosen the clamps on the vent couplings and CARBON MONOXIDE POISONING AND FIRE combustion air pipe located on the blower shelf. HAZARD d. Separate the pipes from the blower compartment and set aside.
- Page 17 5. Disconnect the gas pipe from gas valve and remove WARNING pipe from the furnace casing. 6. Remove individual wires from terminals on gas valve. ELECTRICAL OPERATION HAZARD 7. Disconnect Hot Surface Igniter (HSI) wires from HSI. Failure to follow this warning could result in personal 8.
- Page 18 Flushing Collector Box and Drainage System WARNING WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal ELECTRICAL SHOCK AND FIRE HAZARD injury, death, and/or property damage. Failure to follow this warning could result in personal Never purge a gas line into a combustion chamber.
-
Page 19: Cleaning Heat Exchangers
11. Flush condensate drain lines with warm water. WARNING Remember to check and clean the relief port on the collector box. ELECTRICAL SHOCK, FIRE OR EXPLOSION 12. Shake trap dry. HAZARD 13. Clean port on collector box with a small wire. Failure to follow this warning could result in personal To re-install Condensate Drain and Trap: injury or death, or property damage. - Page 20 13. Replace main furnace door. 13. When furnace is re−started, flush condensate pump with clear water to check for proper operation before Secondary Heat Exchangers re−starting furnace. The condensing side (inside) of the secondary heat 14. Propylene glycol need not be removed before re− exchanger CANNOT be serviced or inspected without starting furnace.
- Page 21 Burner Flame Burner Manifold A11461 Fig. 12 − Burner Flame A11273 Fig. 11 − Cleaning Heat Exchanger Cell GROMMET MOTOR SHAFT FLAT MOTOR ARM SCREW SET SCREW MOTOR WHEEL HUB SEE DETAIL SCREW LOCATION BLO HSG ASSY BRACKET BRACKET ENGAGEMENT DETAIL CUTOFF, BLOWER WHEEL, BLOWER...
- Page 22 IGNITER BURNER SUPT. ASSY BRACKET, IGNITER BURNER ASSY FLAME ROLLOUT SWITCH FLAME SENSOR (BELOW BURNER) A11403 Fig. 14 − Burner Assembly 440 04 7101 09 Specifications subject to change without notice.
-
Page 23: Sequence Of Operation
SEQUENCE OF OPERATION EAC−1 is energized and remains energized as long as the blower motor BLWM is energized. NOTE: Furnace control must be grounded for proper f. Blower−Off Delay− When the thermostat is operation or control will lock out. Control is grounded satisfied, the R−to−W circuit is opened, de−... - Page 24 A11622 Fig. 15 − Troubleshooting Guide 440 04 7101 09 Specifications subject to change without notice.
- Page 25 A12421 Troubleshooting Guide (Cont) 440 04 7101 09 Specifications subject to change without notice.
- Page 26 339236−2 Rev A Fig. 16 − Wiring Diagram 440 04 7101 09 Specifications subject to change without notice.
-
Page 27: Parts Replacement Information Guide
TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or the classified section of your local telephone directory under the “Heating Equipment“ or “Air Conditioning Contractors and Systems” headings for dealer listing by brand name, or contact: International Comfort Products Consumer Relations Department P.O. Box 128 Lewisburg, TN 37091, USA 931−270−4100... - Page 28 Copyright 2018 International Comfort Products Lewisburg, TN 37091 USA 440 04 7101 09 Specifications subject to change without notice.