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MULTIPOISE, CONDENSING 58MCA, 58MTA, 58MVP, 58MXA
GAS FURNACE
USER’S INFORMATION MANUAL FOR OPERATION AND MAINTENANCE OF
YOUR GAS-FIRED FURNACE
USER: Please read all instructions in
NOTE TO INSTALLER:
the manual and retain all manuals for
THIS MANUAL MUST BE LEFT WITH THE
future reference.
EQUIPMENT USER.
!
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in
serious injury, death, or property damage.
— Do not store or use gasoline or other flamma
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TABLE OF CONTENTS WELCOME TO A NEW GENERATION OF COMFORT . . . . . . . 2 GENERAL FURNACE SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 FURNACE COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 BEFORE STARTING YOUR FURNACE. . . . . . . . . . . . . . . . . . . . . . . 4 STARTING AND SHUTT
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FURNACE COMPONENTS 1 Combustion-air intake connection to ensure contami- 17 nant-free air (right or left side). 2 3 2 Burner sight glass for viewing burner flame. 1 3 Burner assembly (inside). Operates with energy-saving 12 4 inshot burners and hot surface igniter for safe, 18 dependable heating. 5 5 4 Redundant gas valve. Safe and efficient. Features 1 gas control with 2 internal shutoff valves. Valve appearance 11 14 varies with furnace model. 16 5 Vent outlet. Uses PVC pipe to car
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SAFETY CONSIDERATIONS • Do not cover the furnace, store trash or debris near it, or Recognize safety information. This is the safety-alert sym- in any way block the flow of fresh air to the unit. bol ! . When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal • A furnace installed in an attic or other insulated space must injury. be kept free and clear of insulating material. Examine the fur- nace area when the f
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ON OFF E S O L C STARTING AND SHUTTING DOWN YOUR FURNACE Instead of a continuously burning pilot flame which wastes valuable energy, your furnace uses an automatic, hot surface ignition system to light the burners each time the thermostat starts your furnace. Follow these important safeguards: 910 3. Turn OFF electrical supply to the furnace. (See Fig. 10.) 4. Remove main furnace door. (See Fig. 11.) 7 • Never attempt to manually light the burners with a match or other sou
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ON OFF N E P O After the hot surface igniter is heated for 17 seconds, the gas valve permits gas to flow to the main burners. After ignition and a time delay of about 60 sec, the furnace blower will start. Variable-capacity furnaces start at low speed until the control makes the necessary adjustments to operate the blower at either the low- or high-heat speed. NOTE: If the burners fail to ignite after 4 attempts, the fur- nace control system will lock out. If lockout occurs, mai
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ON OFF Only trained and qualified personnel should install, repair, or service heating equipment. Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained and qual- ified service agency personnel. Observe safety precautions in this manual, on tags, and on labels attached to the furnace, and other safety precautions that may apply. With proper maintenance and care, your furnace will
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a. Remove filter cabinet door (See Fig. 25 and 26.) NOTE: It will be necessary to remove 1 thumbscrew 3. Remove air filter from furnace. • AIR FILTER LOCATED IN BLOWER COMPARTMENT BOTTOM: a. Slide filter retainer sideways until it is free of latch. (See Fig. 27.) b. Slide air filter out of furnace. (See Fig. 28.) • AIR FILTER(S) LOACTED IN BLOWER COMPART- MENT SIDE: a. Remove filter retainer from latch. (See Fig. 29.) b. Gently remove air filter and carefully turn the dirty side up (if dirty) to av
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When dirt, soot, scale, or rust is allowed to build up, your fur- nace can suffer a loss of efficiency and perform improperly. Accumulations on the main burners can result in firing out of normal sequence. This delayed ignition creates an alarmingly loud sound. ! CAUTION If your furnace makes an especially loud noise when the main burners light, shut down your fur- nace and call your dealer. Failure to follow this caution would result in minor property damage. To inspect the combustion area and
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HEADING SOUTH FOR THE WINTER? 8. Remove funnel and tube from inducer housing and replace drain connection cap and clamp. DON’T FORGET YOUR FURNACE! 9. Replace main furnace door. (See Fig. 34.) 10. Propylene glycol need not be removed before restarting ! CAUTION furnace. If the furnace is installed in an unconditioned space where the ambient temperatures may be 32°F or A CHECK-UP CHECKLIST lower, freeze protection measures must be taken to Your furnace represents an important investment in yo
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• Is thermostat set on HEAT? • Check for obstructions around the vent termination. If the furnace still fails to operate, call your service representa- • Check fuses and circuit breakers. Is electrical supply on? tive. • Is manual shutoff valve in gas supply pipe in open position? (Follow start-up procedures if you open gas valve.) For your convenience, record the furnace product and serial numbers on back page. Should you ever require service, you NOTE: Turn off electrical supply before cont
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INSTALLATION DATA AIR CONDITIONER OR HEAT PUMP Date Installed OUTDOOR UNIT: Dealer Name Product No. Address Model No. City Serial No. INDOOR COIL: State Zip Product No. Telephone FURNACE Model No. Product No. Serial No. Model No. Serial No. 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 & Systems’’ heading for dealer listing by brand name. Have available the
