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11

Combustion air must be free of acid
forming chemicals; such as sulphur,
fluorine and chlorine. These elements
are found in aerosol sprays,
detergents, bleaches, cleaning
solvents, air fresheners, paint and
varnish removers, refrigerants and
many other commercial and household
products. Vapors from these products
when burned in a gas flame form acid
compounds. The acid compounds
increase the dew point temperature of
the flue products and are highly
corrosive after they condense.

ALL FURNACE INSTALLATIONS
MUST COMPLY WITH THE
NATIONAL FUEL GAS CODE AND
LOCAL CODES TO PROVIDE
ADEQUATE COMBUSTION AND
VENTILATION AIR FOR THE
FURNACE. FAILURE TO DO SO CAN
CREATE HAZARDOUS CONDITIONS
RESULTING IN PROPERTY
DAMAGE, BODILY INJURY OR
DEATH FROM SMOKE, FIRE OR
CARBON MONOXIDE.

Combustion air requirements are
determined by whether the furnace is
in an open (unconfined) area or in a
confined space such as a closet or
small room.

EXAMPLE 1.
FURNACE LOCATED IN AN
UNCONFINED SPACE

Using indoor air for combustion.

An unconfined space must have at
least 50 cubic feet for each 1,000
BTUH of the total input for all
appliances in the space. Here are a
few examples of the room sizes
required for different inputs. The sizes
are based on 8 foot ceilings.

BTUH

Minimum Sq. Feet

Typical Room Size

Input

With 8' Ceiling

With 8' Ceiling

50,000

312

14

x24

or 18

x18

75,000

469

15

x31

or 20

x24

100,000

625

20

x31

or 25

x25

125,000

833

23

x34

or 26

x30

If the open space containing the
furnace is in a building with tight
construction (contemporary
construction), outside air may still be
required for the furnace to operate and
vent properly. Outside air openings
should be sized the same as for a
confined space.

FIGURE 7

AIR FROM ATTIC/CRAWL SPACE

EXAMPLE 2.
FURNACE LOCATED IN A
CONFINED SPACE

A confined space (any space smaller
than shown above as “unconfined”)
must have openings into the space
which are located in accordance with
the requirements set forth in the
following subsections A and B. Size the
openings by how they are connected to
the heated area or to the outside, and
by the input of all appliances in the
space.

If confined space is within a building
with tight construction, combustion air
must be taken from outdoors or area
freely communicating with the
outdoors.

A. USING INDOOR AIR FOR

COMBUSTION (See Figure 6)

IMPORTANT:

Air should not be taken

from a heated space with a fireplace,
exhaust fan or other device that may
produce a negative pressure.

If combustion air is taken from the
heated area, the openings must
each have at least 100 square
inches of free area. Each opening
must have at least one square inch
of free area for each 1,000 Btuh of
total input in the space. Here are
some examples of typical openings
required.

Btuh

Free Area

Input

Each Opening

100,000

100 Square Inches

150,000

150 Square Inches

B. USING OUTDOOR AIR FOR

COMBUSTION (See Figure 7)

IMPORTANT:

Never take

combustion air from an attic space
that is equipped with power
ventilation.

The confined space must
communicate with the outdoors
according to Methods 1 and 2. The
minimum air opening dimension
shall not be less than 3 inches.
When using ducts, they shall be of
the same cross-sectional area as
the free area of the openings to
which they connect.

WARNING

!

Содержание (-)GLL Series

Страница 1: ...92 24161 24 09 SUPERSEDES 92 24161 24 08 INSTALLATION INSTRUCTIONS FOR UPFLOW HORIZONTAL GPL AND DOWNFLOW GLL TWO STAGE INDUCED DRAFT GAS FURNACES...

Страница 2: ...furnace ground to electrical panel DC microamp A flame signal hot surface ignition units Correct control voltage Measure and set heat anticipator amperage Air conditioning low voltage wires connected...

Страница 3: ...e cancer or birth defects such as fiberglass insulation lead in brass and combustion products from natural gas All new equipment shipped for sale in California will have labels stating that the produc...

Страница 4: ...RATING PLATE MARKING MEANS FOR PROVIDING OUTDOOR AIR REQUIRED FOR COMBUSTION RETURN AIR TEMPERATURE MAINTAINED BETWEEN 55 F 13 C AND 80 F 27 C AND CLEAN FURNACE DUCT WORK AND COMPONENTS UPON SUBSTANTI...

Страница 5: ...is unit when installed For attic or crawl space installation horizontal furnaces may be installed on combustible wood flooring or by using support brackets See Figure 1 6 IMPORTANT If installing in a...

Страница 6: ...BOTTOM 24 1 2 26 13 16 26 5 8 24 11 32 24 11 32 19 32 9 16 24 7 16 28 1 16 26 5 8 14 3 8 11 1 2 34 1 5 8 DIA 23 15 20 D 7 8 DIA 7 8 DIA 19 32 19 32 3 4 14 3 8 11 1 2 1 1 4 23 17 32 C GAS CONNECTION EL...

Страница 7: ...15 5 8 23 5 8 0 0 0 1 3 6 140 lbs TOP BOTTOM 24 1 2 19 3 4 C A B D LOW VOLTAGE GAS CONNECTION ELECTRIC CONNECTION E 26 5 8 26 13 16 6 3 16 20 3 8 23 3 8 5 8 5 8 3 4 5 8 34 23 3 8 20 3 8 6 3 16 24 7 16...

Страница 8: ...tor coil if used of the entire system should not exceed 0 5 w c Be sure to have adequate space for unit filter IMPORTANT Some high efficiency filters have a greater than normal resistance to air flow...

Страница 9: ...CE AND CREATE POTENTIALLY HAZARDOUS CONDITIONS INCLUDING CARBON MONOXIDE POISONING OR DEATH 2 If summer air conditioning is desired position the indoor coil on the top of the unit Insure that no air c...

Страница 10: ...a closet the door must be closed when making this check of the installation DO NOT reset the overtemperature switch without taking corrective action to assure that an adequate supply of combustion ai...

Страница 11: ...temporary construction outside air may still be required for the furnace to operate and vent properly Outside air openings should be sized the same as for a confined space FIGURE 7 AIR FROM ATTIC CRAW...

Страница 12: ...minimum free area of 1 square inch for each 2000 BTUH of total input rating for all equipment in the enclosure see Figure 8 Here are typical duct sizes FIGURE 8 OUTSIDE AIR USING A HORIZONTAL INLET O...

Страница 13: ...ible construction that carries a U L listing Common venting is allowed with vertical B 1 vent systems and lined masonry chimneys Follow the National Fuel Gas Code ANSI Z223 1 and or the Natural Gas In...

Страница 14: ...ight above the highest connected equipment draft hood or flue collar 3 Must rise 1 4 per foot away from the furnace on horizontal runs and be supported with straps or hangers so it has no sags or dips...

Страница 15: ...remains connected to the common venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas burning appliance to their previous co...

Страница 16: ...event undue pressure drop and never smaller than the pipe size to the combination gas valve on the furnace Refer to Table 2 for the recom mended pipe size for natural gas and Table 3 for LP gas pipe s...

Страница 17: ...d to use liquefied petroleum LP gas by replacing the pressure regulator spring with the conversion kit spring This LP kit spring allows the regulator to maintain the proper adjusted manifold pressure...

Страница 18: ...clockwise to decrease pressure 7 Securely replace the regulator cap for high fire 8 Operate the furnace in low speed 9 Note or adjust the manifold pressure to give A 1 7 w c for natural gas low fire B...

Страница 19: ...aking the pressure adjustment TO CHANGE ORIFICE SPUDS 1 Shut off the manual main gas valve and remove the gas manifold 2 Replace the orifice spuds 3 Reassemble in reverse order 4 Turn the gas supply b...

Страница 20: ...l Electric Code ANSI NFPA No 70 latest edition or Canadian Electrical Code Part 1 CSA Standard C22 1 and local building codes This can be obtained from National Fire Protection Association Batterymarc...

Страница 21: ...eaner whenever the circulating air blower is in operation RXGW B01 CHIMNEY ADAPTER This appliance is CSA certified for use with RXGW B01 chimney adapter Refer to Kit Installation Instructions 92 10168...

Страница 22: ...TO BE CHANGED THE FOLLOWING EXAMPLES SHOW HOW TO DETERMINE IF AN ORIFICE CHANGE WILL BE NECESSARY AND HOW TO DETERMINE THE NEW ORIFICE SIZE IN CANADA AS AN ALTERNATE TO ADJUSTING THE BURNER ORIFICE SI...

Страница 23: ...YSTEMS Furnace installation with Rheem Ruud ARA or ARL outdoor condensing units can provide high efficiency up to 16 SEER cooling operation Using Tables 9 and 10 and literature provided with the cooli...

Страница 24: ...8 48 25 000 24 000 23 000 22 000 21 000 20 000 19 000 18 000 17 000 16 000 All calculations are performed by using the first three columns of information only Before beginning any calculations determi...

Страница 25: ...thermostat connections since low speed cooling is not wired to the same control board as all other thermostat terminals UP TO 16 SEER COOLING OPERATION SINGLE STAGE COOLING All IFC part numbers and re...

Страница 26: ...ttings Sequence if the system doesn t light or doesn t sense flame a If flame is not sensed within 8 seconds after the gas valve opens the valve closes and the ignitor is de energized The induced draf...

Страница 27: ...d voltage variations The installer is given the option of three air flow options in the heating mode as shown in Table 12 Switches 1 and 2 on the interface control regulate the steady state heating mo...

Страница 28: ...inputs The B terminal input is provided for heat pump applications This signal comes from a heat pump thermostat and tells the heat pump to switch its reversing valve to TABLE 14 COOLING AIR FLOW SWI...

Страница 29: ...29 FIGURE 23 COOLING HEAT PUMP OFF DELAY PROFILES ST A0827 01...

Страница 30: ...30 FIGURE 24 COOLING HEAT PUMP ON DELAY PROFILES ST A0828 01...

Страница 31: ...31 FIGURE 25 LOW HEAT OFF DELAY PROFILES ST A0829 01...

Страница 32: ...32 FIGURE 26 HIGH HEAT OFF DELAY PROFILES ST A0830 01...

Страница 33: ...ne from the heat exchanger See Figure 27 2 Insert a thermometer in the return air duct as close to the furnace as possible 3 Operate the furnace 4 When the thermometer in the supply air duct stops ris...

Страница 34: ...wer wheel E Wrong motor rotation F Blower wheel slipping on the motor shaft 6 Overfiring the furnace with too much gas pressure 7 Ventilation problems FLAME ROLL OUT SAFETY SWITCHES Furnaces are equip...

Страница 35: ...tch is located in the upper position on the furnace LUBRICATION The blower motor and induced draft motor are permanently lubricated by the manufacturer and do not require further attention The motor m...

Страница 36: ...s are used in the system it is important that the airflow is not reduced to maximize system performance and life Always verify that the system s airflow is not impaired by the filtering system that ha...

Страница 37: ...37 FIGURE 32 FILTER RETAINING RODS SIDE RETURN FIGURE 33 DOWNFLOW FILTER INSTALLATION...

Страница 38: ...DS PLACEMENT OF COMBUSTIBLE MATERIALS ON AGAINST OR AROUND THE FURNACE JACKET CAN CAUSE AN EXPLOSION OR FIRE RESULTING IN PROPERTY DAMAGE PERSONAL INJURY OR DEATH THE FURNACE OWNER SHOULD BE CAUTIONED...

Страница 39: ...39 FIGURE 34 INTEGRATED FURNACE CONTROL IFC TROUBLESHOOTING GUIDE FOR UTEC 1095 101...

Страница 40: ...40...

Страница 41: ...41 FIGURE 35 FOR MODELS WITH UT ELECTRONIC CONTROLS 1095 101 INTEGRATED FURNACE CONTROL AND ECM BLOWER MOTOR...

Страница 42: ...42...

Страница 43: ...43...

Страница 44: ...44 CM 1105...

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