CSA 96MDT SERIES, Руководство по установке

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70
Gas Supply
IMPORTANT: Any additions, changes or conversions re-
quired for the furnace to satisfactorily meet the application
should be made by a qualified installer, service agency or
the gas supplier, using factory-specified or approved parts.
IMPORTANT: Connect this furnace only to gas supplied by
a commercial utility or commercial fuel provider.
IMPORTANT: U.L. or CSA recognized fuel gas and carbon
monoxide (CO) detector(s) are recommended in all appli-
cations, and their installation should be in accordance with
the manufacturer’s recommendations and/or local laws,
rules, regulations or customs.
Install the gas piping according to all local codes and regu-
lations of the utility company.
If possible, run a separate gas supply line directly from the
meter to the furnace. Conventional and alternate gas in-
stallations are detailed in Figure 36. Alternate gas from
right of cabinet will require additional fittings. Two street
elbows are recommended to route gas line behind the
valve and align to the knockout in the furnace casing.
NOTE : * For Canadian installations only corrugated
stainless steel tubing (CSST) can be used for alternate
gas routing inside the cabinet. A connection from CSST to
solid black iron pipe must be made before exiting the cabi-
net. Ensure pipe passes through the grommet and the
grommet seats properly in the cabinet side for proper fur-
nace operation. Consult the local gas company for the lo-
cation of the manual main shut-off valve.
The gas line and
manual gas stop must be adequate in size to prevent
undue pressure drop and never smaller than the pipe
size to the gas valve on the furnace.
Refer to Table 12
for natural gas (Table 13 for LP gas) for the recommended
gas pipe size. See Figure 36 for typical gas pipe connec-
tions.
Install a ground joint union within 3 feet of the cabinet
to easily remove the gas valve assembly. Local codes
may dictate the location of the ground joint union. In-
stall a manual shut-off valve in the gas line outside of
the furnace casing and upstream of the ground joint
union.
The manual shut-off valve should be readily acces-
sible to turn the gas supply on or off. Install a drip leg in
the gas supply line as close to the furnace as possible. Al-
GAS SUPPLY
GAS PIPING
MANUAL S HU T -OF VALVE
UNION
DRIP LEG
MANUAL S HU T -OF VALVE
UNION
DRIP LEG
* ( 2 ) ST REE T ELBOW S
* FOR CANADIAN INSTALLATIONS CSST CAN BE USED INSTEAD OF (2) STREET ELBOWS.
ST-A1205-02-01
FIGURE 36
GAS PIPING INSTALLATION
!
WARNING
THIS FURNACE IS EQUIPPED AT THE FACTORY
FOR USE ON NATURAL GAS ONLY. CONVERSION
TO LP GAS REQUIRES A SPECIAL KIT IS AVAIL-
ABLE AT THE DISTRIBUTOR. FAILURE TO USE THE
PROPER CONVERSION KIT CAN CAUSE FIRE,
CARBON MONOXIDE POISONING, EXPLOSION,
PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH. SEE THE CONVERSION KIT INDEX SUP-
PLIED WITH THE FURNACE. THIS INDEX IDENTI-
FIES THE PROPER LP GAS CONVERSION KIT
REQUIRED FOR EACH PARTICULAR FURNACE.
UPFLOW
(CONTINUED ON NEXT PAGE)
MANUAL SHUT-OFF VALVE
UNION
DRIP LEG
DRIP LEG
*(2) STREET ELBOWS
UNION
MANUAL SHUT-OFF VALVE