Hearth and Home Technologies Fireside Burner/Hearth Kits SP18NG - Manual (Page 7)

Hearth & Home Technologies • Fireside Burner/Hearth Kits • 4004-318•Rev E 2/2013 7
WARNING
Fire Risk
Explosion Risk
• Gas build-up during line purge may
ignite.
• Purge should be performed by qualified
technician.
• Ensure adequate ventilation.
• Ensure there are no ignition sources such
as sparks or open flames.
C. Gas Pressure
Proper input pressures are required for optimum appliance
performance. Gas line sizing requirements need to be made
following NFPA51.
Fire Risk
Explosion Risk
High pressure will damage valve.
• Disconnect gas supply piping BEFORE
pressure testing gas line at test pressures
above 1/2 psig.
• Close the manual shutoff valve BEFORE
pressure testing gas line at test pressures
equal to or less than 1/2 psig.
WARNING
High Altitude Derate
In
the USA, input BTU shall be derated 4% (one orifice size)
per 1000 feet for altitudes above 2000 feet. In Canada, input
BTU shall be derated 10% (two orifice sizes) at altitudes
from 2000-4500 feet.
• Gas Supply Pressure: Minimum inlet gas supply pressure
must be 4.5 in. W.C. for natural gas or 11 in. W.C. for LP
gas for the purpose of input adjustment. Maximum inlet
gas pressure must not exceed 7.0 in. W.C. for natural
gas or 13 in. W.C. for LP gas. The gas line supplying the
appliance must be sufficient size to furnish the appropriate
supply pressure to the appliance while operating in the
“High” setting. (Minimum line ID of 1/2 in. required if the
line is longer than 20 ft.).
• Gas Line Pressure Test: Perform pressure test according
to state and local code (if pressure exceeds 1/2 in. psi [3.5
kPa]) before appliance is connected. Be sure to release
air pressure from the gas line before connection is made
to the appliance. Excessive pressure will damage the gas
control and may cause a gas leak.
• Gas Leak Test: Make sure the gas connections are tight.
Turn on the gas and coat each joint with a non-corrosive
gas leak check solution. Air bubbles will form indicating
any leaks. DO NOT USE A FLAME OR ANY TYPE OF
IGNITION SOURCE TO CHECK FOR LEAKS. All leaks
must be corrected before proceeding with installation.
• The appliance must only be installed in a solid-fuel burning
fireplace with the flue damper clamped open.
• The minimum permanent free opening (in square inches)
that must be provided by the fireplace chimney or damper
to vent the flue gases is provided in Table 1. If the free
opening is smaller than the specified area, do not use this
appliance.
• The damper must be removed or fixed in a manner in
which will secure it open. Some jurisdictions require the
damper to be removed or permanently welded fully open.
Check with state and local codes.
• Be sure that the chimney is completely unobstructed to
ensure proper ventilation of flue gases including carbon
monoxide (CO).CO (a poisonous gas) is tasteless,
odorless, colorless and undetectable without proper
equipment.
WARNING
CHECK FOR GAS LEAKS
Fire Risk
Explosion Risk
Asphyxiation Risk
• Check all fittings and connections.
• Do not use open flame.
• After the gas line installation is complete,
all connections must be tightened and
checked for leaks with a commercially
available, non-corrosive leak check
solution. Be sure to rinse off all leak check
solution following testing.
Fittings and connections may have loosened
during shipping and handling.
WARNING
Fire Risk
Explosion Risk
Do NOT change the valve settings.
• This valve has been preset at the
factory.
• Changing valve settings may result in fire
hazard or bodily injury.
• Prevent accidental appliance operation when not
attended.
• Unplug or remove batteries from remote control if
absent or if appliance will not be used for an extended
period of time.
• Property damage possible from elevated
temperatures.
CAUTION