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10

 

Fu rnace

Water
Heater

Outlet Air

Chimney o r 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 (3 00 mm)
above floor]

Ventilation louvers
(each end of 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.

Furnace

Water
Heater

Opening

Chimney or Gas Vent

NOTE: The single opening must have
a free area of not less than one 
square inch per 3000 BTU of  
the total input rating of all equip-
ment in the enclosure, but not less than 
the sum of the areas of all vent
connectors in the confined space.

Alternate
Opening
Location

Equipment Located in Confined Spaces; All Air from Outdoors -

Single Air Opening.  See 5.3.3-b.

5.3.3 Equipment Located in Confined Spaces:

 (a) 

All Air from Inside the Building: 

The confined space shall be pro-

vided with two permanent openings communicating directly with
an additional room(s) of sufficient volume so that the combined
volume of all spaces meets the criteria for an unconfined space. The
total input of all gas utilization equipment installed in the combined
space shall be considered in making this determination. Each open-
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

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.

Содержание GCH9

Страница 1: ...tall the product safely and to know it well enough to be able to instruct a customer in its safe use Safety is a matter of common sense a matter of thinking before acting Most dealers have a list of s...

Страница 2: ...ER 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 PI...

Страница 3: ...XVIII Troubleshooting 32 ELECTROSTATIC DISCHARGE ESD PRECAUTIONS 32 DIAGNOSTIC CHART 32 FAULT RECALL 32 RESETTING FROM LOCKOUT 32 XIX Maintenance 32 ANNUAL INSPECTION 32 FILTERS 32 BURNERS 33 INDUCED...

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: ...e Pipe Connection Alternate 15 Rubber Elbow 16 Induced Draft Blower 17 Electrical Connection Inlets Alternate 18 Coil Front Cover Pressure Tap 19 Coil Front Cover Drain Port 20 Drain Line Penetrations...

Страница 6: ...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 ducting can be used II SAFETY II SAF...

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: ...tions of use g If improper venting is observed during any of the above tests the common venting system must be corrected halogen type refrigerants cleaning solutions such as perchloroethylene printing...

Страница 9: ...ipping heavily insulated caulked vapor barrier etc addi tional air may need to be provided using the methods described in 5 3 3 b or 5 3 4 Space Unconfined For purposes of this Code a space whose volu...

Страница 10: ...directly with an additional room s of sufficient volume so that the combined volume of all spaces meets the criteria for an unconfined space The total input of all gas utilization equipment installed...

Страница 11: ...ropriate 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 APPLI AL APPLI AL APPLI AL APPLI AL...

Страница 12: ...s 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 orifice change These c...

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: ...rd against inadvertent blockage COMBUSTION AIR PIPE DIRECT VENT INSTALLATIONS On upflow units secure the combustion air intake pipe directly to the air intake coupling On counterflow units secure the...

Страница 15: ...LT IN LEAKS CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO FLUE GASES INCLUDING CARBON MONOXIDE 7 Upflow and Counterflow units For upright installations externally mount the rubber elbow to the ven...

Страница 16: ...r of elbows in the piping system Pipe Size 4 inc 2 3 4 5 6 7 8 045_3 2 68 65 62 59 56 53 50 070_3 2 68 65 62 59 56 53 50 070_4 2 46 43 40 2 16 13 10 3 68 65 62 59 56 53 50 090_5 3 68 65 62 59 56 53 50...

Страница 17: ...ter pipe can be used in place of 2 diameter pipe 4 Increased Clearance Configurations using 2 45 deg Long Sweep elbows should be considered equivalent to one 90 deg elbow VENT FLUE AND COMBUSTION AIR...

Страница 18: ...furnace NOTE If the alternate vent flue outlet is utilized in an upright installation the drain trap and drain connections must be located on the same side as the alternate vent flue outlet In horizon...

Страница 19: ...Hose B with green hose clamps Ensure hoses and tubes maintain a downward slope for proper drainage and that they are not kinked or binding For details concerning mounting of the drain trap refer to S...

Страница 20: ...ht down side panel grommet holes Secure tubes to Hose A and Hose B using green hose clamps Ensure hoses and tubes maintain a downward slope for proper drainage and are not kinked or bound For details...

Страница 21: ...must be sized in accordance with the maximum overcurrent pro tection specified on the unit rating plate An electrical disconnect must be provided at the furnace location NOTE Line polarity must be ob...

Страница 22: ...Blower pressure switch is powered anytime the pressure switch is closed and provides 24 VAC humidifier control Remove the yellow wire and connect the supplied brown jumper wire to the pressure switch...

Страница 23: ...plying the furnace must be properly sized based on the gas flow required specific gravity of the gas and length of the run The gas line installation must comply with local codes or in their absence wi...

Страница 24: ...ctors and semi rigid tubing against physical and thermal damage when installed Ensure aluminum alloy tubing and connectors are coated to protect against external corrosion when in contact with masonry...

Страница 25: ...ne gas leak Rust can reduce the level of odorant in propane gas Do not rely on your sense of smell Contact a local propane gas supplier about installing a gas detecting warning system If the presence...

Страница 26: ...uipped with means to prevent operation of either unit unless the damper is in the full heat or cool position When the furnace is installed without a cooling coil it is recom mended that a removable ac...

Страница 27: ...bility of flue gases escaping through the drain system FURNACE OPERATION Purge gas lines of air prior to startup Be sure not to purge lines into an enclosed burner compartment Check for leaks using an...

Страница 28: ...NT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE THE GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE ONLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING THE GAS VALVE PRESSURE REGULATOR...

Страница 29: ...rtially open position 2 Place thermometers in the return and supply ducts as close to the furnace as possible Thermometers must not be influenced by radiant heat by being able to see the heat exchange...

Страница 30: ...MODE DIP SWITCH IS SET TO 2 STG POSITION The normal operational sequence in sequence is as follows R and W thermostat contacts close initiating a call for heat Integrated control module performs safet...

Страница 31: ...Y CIRCUIT DESCRIPTION XVII SAFETY CIRCUIT DESCRIPTION XVII SAFETY CIRCUIT DESCRIPTION XVII SAFETY CIRCUIT DESCRIPTION GENERAL A number of safety circuits are employed to ensure safe and proper furnace...

Страница 32: ...e least recent fault RESETTING FROM LOCKOUT Furnace lockout results when a furnace is unable to achieve igni tion after three attempts during a single call for heat It is character ized by a non funct...

Страница 33: ...AME SENSOR QUALIFIED SERVICER ONLY Under some conditions the fuel or air supply can create a nearly invisible coating on the flame sensor This coating acts as an insulator causing a drop in the flame...

Страница 34: ...E LEA RE LEA RE LEAVIN VIN VIN VIN VING AN INST G AN INST G AN INST G AN INST G AN INSTALL ALL ALL ALL ALLA A A A ATI TI TI TI TIO O O O ON N N N N Cycle the furnace with the thermostat at least three...

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 due to improper gas pressure or combustion air Induced draft blower and circulator blower runs continuously No furnace operation Integrated control module diagnostic LED is flashing FIVE 5 flashes F...

Страница 37: ...NT COVER PRESSURE SWITCH N O C GY BK PLUG CONNECTION FIELD SPLICE SWITCH TEMP OR 24V THERMOSTAT CONNECTIONS GR GND 115 VAC 24 VAC BLOWER COMPARTMENT DOOR SWITCH OPEN WHEN DOOR OPEN DOOR SWITCH BK GND...

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