36
CAUTION
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
!!
NOTICE
Use of CSA approved corrugated, semi-rigid
stainless steel tubing with polyethylene jacketing
is approved for use with boilers following tubing
manufacturer's instructions.
"appliance whip" gas tubing is not
allowed per NFPA 54.
WARNING
Fire, explosion, asphyxiation and burn hazard.
Boiler piping and gas connections shall be leak
tested before placing boiler in operation. Failure
to follow these instructions and or improper
installation could result in death or serious injury.
!
Required Gas Supply Pressure
at Maximum Firing Rate
Natural Gas Liquid Propane
Min. Max. Min. Max.
3.5" w.c. 10.5" w.c. 8.0" w.c. 13.0" w.c.
(0.87 kPa) (2.61 kPa) (1.99 kPa) (3.23 kPa)
DANGER
Fire Hazard. Do not use matches, candles, open
source. Failure to comply will result in death or
serious injury.
!
7 - GAS SUPPLY PIPING
NOTICE
If overheating occurs or gas supply fails to shut
to the boiler.
• Install boiler so that gas ignition system components
are protected from water (dripping, spraying,rain,
etc.) during appliance operation and service
(circulator replacement, condensate trap, control
replacement, etc.).
• Gas meter and supply pipes must be capable of
delivering the listed quantity of gas in addition to
demand from any other appliances in the house.
Boiler requires a minimum 3/4” (19.5 mm) gas
supply pipe.
• Support piping with hooks, straps, bands, brackets,
hangers, or building structure components to prevent
or dampen excessive vibrations and prevent strain on
gas connection. Boiler will not support piping weight.
• Use thread (joint) compound (pipe dope) suitable for
• Leak test boiler and gas line connections before
placing boiler into operation.
7.1 General
• Use piping materials and joining methods acceptable
to authority having jurisdiction. In absence of such
requirements:
• USA - National Fuel Gas Code, ANSI Z223.1/
NFPA 54.
•
upstream of gas controls in accordance with state
and local requirements. See Figure 7-1.
• Size and install gas piping system to provide
less than minimum supply pressure.
• Boiler shall be isolated from the gas supply piping
during any pressure testing of gas supply piping
system at test pressures equal to or less than 1/2 psi
(3.40 kPa - 34.47 mbar).
GAS SUPPLY REQUIRED:
MODEL NATURAL GAS (A) LIQUID PROPANE (E)
DCBF-100
92 ft/h (2.60 m/h) 38 ft/h (2.61 m/h)
DCCF-115
114 ft/h (3.22 m/h)
47 ft/h (1.32 m/h)
DCBF-125
118 ft3/h (3.30 m3/h) 51 ft3/h (1.48 m3/h)
DCCF-150
143 ft3/h (4.00 m3/h) 61 ft3/h (1.72 m3/h)
DCBF-165
153 ft3/h (4.30 m3/h) 66 ft3/h (1.85 m3/h)
DCCF-205
191 ft3/h (5.40 m3/h) 82 ft3/h (2.30 m3/h)
240013375 REV A, [07/01/2021]
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