15
CAUTION:
ONE OF THE MOST COMMON CAUSES OF TROUBLE IN FORCED AIR HEATING SYSTEMS IS DUE TO
INSUFFICIENT RETURN AIR TO THE FURNACE. THE RETURN AIR SYSTEM SHOULD BE APPROXIMATELY EQUAL
TO OR GREATER THAN THE AREA OF THE WARM AIR DISCHARGE. CONSULT LOCAL CODES FOR SPECIAL
REQUIREMENTS. BLOWER SPEED SHOULD BE ADJUSTED TO MAINTAIN THE TEMPERATURE RISE RANGE SHOWN
ON THE RATING PLATE.
NOTE: Upon initial start-up, some smoke or an odor may be present. This is normal and should disappear in a short amount
of time.
WARNING:
IMPORTANT NOTICE
- NEVER ALLOW THE PRODUCTS OF COMBUSTION OR THE FLUE PRODUCTS
TO ENTER THE RETURN DUCTWORK, OR THE CIRCULATING AIR SUPPLY. ALL RETURN DUCTWORK MUST BE
ADEQUATELY SEALED AND SECURED TO THE FURNACE AND JOINTS MUST BE COMPLETELY SEALED. ALL
OTHER DUCT JOINTS MUST BE SECURED WITH APPROVED CONNECTIONS AND SEALED AIRTIGHT. THE VENT
AND THE COMBUSTION AIR SUPPLY PIPES MUST BE PROPERLY INSTALLED TO PREVENT LEAKAGE, AS NOTED
ELSEWHERE IN THESE INSTRUCTIONS. WHEN A FURNACE IS MOUNTED ON A PLATFORM, WITH RETURN
THROUGH THE BOTTOM, IT MUST BE SEALED AIRTIGHT BETWEEN THE FURNACE AND THE RETURN AIR
PLENUM. THE FLOOR OR PLATFORM MUST PROVIDE SOUND PHYSICAL SUPPORT OF THE FURNACE WITHOUT
SAGGING, CRACKS, GAPS, ETC. AROUND THE BASE AS TO PROVIDE A SEAL BETWEEN THE SUPPORT AND
THE BASE. WHEN INSTALLED IN A CLOSET OR OTHER SIMILAR ENCLOSURE THE VENT AIR OPENINGS IN THE
CLOSET DOOR AND THE CIRCULATING AIR OPENINGS MUST BE SEPARATED AN ADEQUATE DISTANCE TO
PREVENT THE CIRCULATING AIR FROM INTERFERING WITH THE NATURAL FLOW OF VENTILATION AIR.
FAILURE TO PREVENT PRODUCTS OF COMBUSTION FROM BEING CIRCULATED INTO THE LIVING SPACE CAN
CREATE POTENTIALLY HAZARDOUS CONDITIONS, INCLUDING CARBON MONOXIDE POISONING THAT COULD
RESULT IN PERSONAL INJURY OR DEATH.
DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT RETURN DUCTWORK TO ANY OTHER HEAT PRODUCING
DEVICE SUCH AS A FIREPLACE INSERT, STOVE, ETC. DOING SO MAY RESULT IN FIRE, CARBON MONOXIDE
POISONING, EXPLOSION, PERSONAL INJURY OR PROPERTY DAMAGE.
Install the air return to terminate through the floor under the furnace. For installations where return air ducts cannot be run
under the floor, return air may be taken from the side(s). When side air return is used, determine the size opening required,
and scribe a line between the knockout squares and cut out the opening along these lines.
WHERE MAXIMUM AIRFLOW IS 1800 C.F.M. OR MORE, BOTH SIDES OR THE BOTTOM MUST BE USED FOR
RETURN AIR.
WARNING:
IMPORTANT NOTICE - UPFLOW FURNACES -
A SOLID METAL BASE PLATE IS SUPPLIED WITH THIS
FURNACE AND IT MUST BE IN PLACE WHEN THE FURNACE IS INSTALLED WITH SIDE AIR RETURN DUCTS. FAILURE
TO LEAVE THIS BASE PLATE IN PLACE COULD CAUSE PRODUCTS OF COMBUSTION TO BE CIRCULATED INTO
THE LIVING SPACE AND CREATE POTENTIALLY HAZARDOUS CONDITIONS, INCLUDING , BUT NOT LIMITED TO,
CARBON MONOXIDE POISONING. REFER TO SECTION ON “CIRCULATING AIR SUPPLY” FOR RETURN AIR
DUCTWORK INSTRUCTIONS.
Содержание GMN SERIES
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