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2. When communicating with the outdoors through vertical ducts,

each opening shall have a minimum free area of 1 square inch per
4,000 BTU per hour of total input rating of all equipment in the
enclosure.

 

Furnace

Water
Heater

Outlet Air

Chimney or Gas Vent

NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.

Inlet air duct
[ends 1 ft (300 mm)
above floor]

V entilation louvers
(each end o f attic)

Equipment Located in Confined Spaces; All Air from Outdoors

Through  Ventilated Attic.  See 5.3.3-b.

3. When communicating with the outdoors through horizontal ducts,

each opening shall have a minimum free area of 1 square inch per
2,000 BTU per hour of total input rating of all equipment in the
enclosure.

Furnace

Water
Heater

Chimney or Gas Vent

NOTE: The air duct openings
must have a free area of not
less than one square inch per
2000 BTU of the total input
rating of all equipment in the
enclosure*.

Outlet air duct

Inlet air duct

*If the appliance room is located against an outside wall and the air openings communicate directly with the
outdoors, each opening shall have a free area of not less than one square inch per 4,000 BTU per hour of
the total input rating of all appliances in the enclosure.

Equipment Located in Confined Spaces; All Air from Outdoors.

See 5.3.3-b.

4. When ducts are used, they shall be of the same cross-sectional

area as the free area of the openings to which they connect. The
minimum dimension of rectangular air ducts shall not be less
than 3 inches.

ing shall have a minimum free area of 1 square inch per 1,000 BTU
per hour of the total input rating of all gas utilization equipment in
the confined space, but not less than 100 square inches. One open-
ing shall be within 12 inches of the top and one within 12 inches of
the bottom of the enclosure.

Furnace

Water
Heater

Opening

Chimney or Gas Vent

Opening

NOTE: Each opening must have
a free area of not less than one 
square inch per 1000 BTU of  
the total input rating of all equip-
ment in the enclosure, but not
less than 100 square inches.

 Equipment Located in Confined Spaces; All  Air from Inside

Building. See 5.3.3-a.

(b) 

All Air from Outdoors: 

The confined space shall be provided with

two permanent openings, one commencing within 12 inches of the
top and one commencing within 12 inches of the bottom of the
enclosure. The openings shall communicate directly, or by ducts,
with the outdoors or spaces (crawl or attic) that freely communicate
with the outdoors.

1. When directly communicating with the outdoors, each opening

shall have a minimum free area of 1 square inch per 4,000 BTU
per hour of total input rating of all equipment in the enclosure.

Furnace

Water
Heater

Outlet Air

Chimney or Gas Vent

NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.

Inlet Air

Ventilation louvers for
unheated crawl space

Alternate
air inlet

Ventilation louvers
(each end of attic)

Equipment Located in Confined Spaces; All Air from Outdoors—

Inlet Air from Ventilated Crawl Space and Outlet Air to Ventilated

Attic. See 5.3.3-b

Содержание GMS95

Страница 1: ...f in a position which is more hazardous than when the unit is in operation Remember it is your responsibility to install the product safely and to know it well enough to be able to instruct a customer...

Страница 2: ...ROPER VENT FLUE AND COMBUSTION AIR PIPING PRACTICES 13 TERMINATION LOCATIONS 13 CANADIAN VENTING REQUIREMENTS 14 STANDARD FURNACE CONNECTIONS 14 ALTERNATE FURNACE CONNECTIONS 14 NON DIRECT VENT SINGLE...

Страница 3: ...afety Circuit Description 31 GENERAL 31 INTEGRATED CONTROL MODULE 31 PRIMARY LIMIT 31 AUXILIARY LIMIT 31 ROLLOUT LIMIT 31 PRESSURE SWITCHES 31 FLAME SENSOR 31 XVIII Troubleshooting 31 ELECTROSTATIC DI...

Страница 4: ...warranty certificate is also supplied with the unit Read the warranty carefully and note what is covered Keep the warranty cer tificate in a safe location for future reference If additional informatio...

Страница 5: ...lectrical Connection Inlets Alternate 19 Coil Front Cover Pressure Tap 20 Coil Front Cover Drain Port 21 Drain Line Penetrations 22 Drain Trap 23 Blower Door Interlock Switch 24 Capacitor 25 Integrate...

Страница 6: ...are set per the furnace rating plate The input rate and temperature rise are set per the furnace rating plate 100 outside air is provided for combustion air requirements during construction Temporary...

Страница 7: ...ly air opening and the combustible floor Exposure to contaminated combustion air will result in safety and performance related problems Do not install the furnace where the combustion air is exposed t...

Страница 8: ...g system properly vents when tested as outlined above re turn doors windows exhaust fans fireplace dampers and any other gas burning appliance to their previous conditions of use halogen type refriger...

Страница 9: ...input rating of all appliances installed in that space Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors are considered a par...

Страница 10: ...nsion of rectangular air ducts shall not be less than 3 inches ing shall have a minimum free area of 1 square inch per 1 000 BTU per hour of the total input rating of all gas utilization equipment in...

Страница 11: ...tallation Positions figure for appropriate in stallation positions ductwork connections and resulting airflow arrangements VII HO VII HO VII HO VII HO VII HORIZO RIZO RIZO RIZO RIZONT NT NT NT NTAL AP...

Страница 12: ...ane gas installations require an orifice change to compensate for the energy content difference between natural and propane gas High altitude installations may require both a pressure switch and an or...

Страница 13: ...nt flue pipe and a combustion air intake pipe Refer to the appropriate section for details concerning piping size length number of elbows furnace connections and terminations MATERIALS AND JOINING MET...

Страница 14: ...DIRECT VENT INSTALLATIONS On upflow units secure the combustion air intake pipe directly to the air intake coupling On counterflow units secure the combus tion air intake pipe to the air intake coupl...

Страница 15: ...ue piping to the rubber elbow using a worm gear hose clamp NOTE Use of the alternate vent flue location for upright installations requires the drain trap be installed on the same side of the unit as t...

Страница 16: ...ould be in stalled on either side of the wall and solvent cemented to a length of pipe connecting the two couplings The length of pipe should be the wall thickness plus the depth of the socket fitting...

Страница 17: ...s in each Vent Flue Combustion Air Intake pipe Elbows and or tees used in the terminations must be included when determining the number of elbows in the piping systems If the combustion air intake pip...

Страница 18: ...es If the pipes must go below the joist and then up into the last joist space to penetrate the header two 45 elbows should be used to reach the header rather than two 90 elbows VENT INTAKE TERMINATION...

Страница 19: ...t installations using the standard vent flue outlet require drain hoses to be connected as follows The following quantity of hoses tubes and hose clamps are provided with the unit HOSE A QTY 1 HOSE B...

Страница 20: ...flow models relocation of the front cover pressure switch hose is required Make connections as follows 1 Remove the rubber plug from the coil front cover drain port Counterflow furnaces Relocate the f...

Страница 21: ...is an integral part of this furnace Field alter ation to comply with electrical codes should not be required Wires are color coded for identification purposes Refer to the wiring diagram for wire rout...

Страница 22: ...at 120 VAC Turn OFF power to the furnace before installing any accessories Follow the humidifier or air cleaner manufacturers instructions for locating mounting grounding and controlling these access...

Страница 23: ...field convertible for use with propane gas by replacing the regulator spring with a propane gas spring from an appropriate manufacturer s propane gas conversion kit Taps for measuring the gas supply p...

Страница 24: ...rotect against external corrosion when in contact with masonry plaster or insulation or subjected to repeated wetting by liquids such as water except rain water detergents or sewage MANUAL SHUT OFF VA...

Страница 25: ...nace manifold with all gas appliances in operation Maintaining proper gas pressure depends on three main factors 1 Vaporization rate depending on temperature of the liquid and wetted surface area of t...

Страница 26: ...the dampers or other means used to control the flow of air must be adequate to prevent chilled air from entering the furnace and if manually operated must be equipped with means to prevent operation...

Страница 27: ...nace is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand 5 Move the furnace gas valve manual control to the OFF position 6 Wait five minute...

Страница 28: ...soap suds check for leaks at hose connection Bubbles forming indicate a leak SHUTOFF GASAND FIXALLLEAKS IMMEDIATELY BEFORE PROCEEDING TO NEXT STEP 6 Measure furnace gas supply pressure Supply pressure...

Страница 29: ...uals the installation s gas heating value multiplied with a conversion factor hours to seconds divided by the number of seconds per cubic foot The measured input must not be greater than the input ind...

Страница 30: ...sensed Circulator blower is energized on heat speed following a fixed thirty second blower on delay Electronic air cleaner terminals are energized with circulator blower Furnace runs integrated contro...

Страница 31: ...DISCHARGE ESD PRECAUTIONS NOTE Discharge body s static electricity before touching unit An electrostatic discharge can adversely affect electrical components Use the following precautions during furna...

Страница 32: ...e filter s by reversing the procedure for removal 4 Turn ON electrical power to furnace MEDIA AIR FILTER OR ELECTRONIC AIR CLEANER REMOVAL Follow the manufacturer s directions for service BURNERS Visu...

Страница 33: ...he blower until filter clears bottom rail 5 Lower filter down and pull outward Front of Furnace Blower Front of Furnace Blower 6 Replace filter by reversing procedure X X X X XXI BEFO XI BEFO XI BEFO...

Страница 34: ...34...

Страница 35: ...kage proper length elbows and termination Check drain system Correct as necessary Correct pressure switch setpoint or contact motion Tighten or correct wiring connection Pressure switch hose blocked p...

Страница 36: ...e sensor with emery clot See Vent Flue Pipe section for piping details See rating plate for proper gas pressure 7 7 FLASHES Flame sensor is coated oxidized Flame sensor incorrectly positioned in burne...

Страница 37: ...OSTAT CONNECTIONS BU GN GND 115 VAC 24 VAC BLOWER COMPARTMENT DOOR SWITCH OPEN WHEN DOOR OPEN DOOR SWITCH WARNING DISCONNECT POWERBEFORE SERVICING WIRING TOUNITMUST BE PROPERLYPOLARIZED AND GROUNDED B...

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