DV425TR DIRECT VENT ROOM HEATER
02/01 Page 44 250-5533
The gas line must be installed in accordance
with all local codes, if any; if not, follow ANSI 223.1
and the requirements listed below.
The stove and gas control valve must be
disconnected from the gas supply piping during any
pressure testing of that system at test pressures in
excess of 1/2 psig. For pressures under 1/2 psig,
isolate the gas supply piping by closing the manual
shut-off valve.
The appliance must be isolated from the gas
supply piping system by closing its equipment shutoff
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than
1/2 psi (3.5 kPa).
Leak test all gas line joints and the gas control
valve prior to and after starting the stove.
Fuel
This unit is manufactured for use with natural
gas. To convert to LP gas, Part #844-9010 LP
Conversion Kit, is required and available through your
dealer
Gas Line Connection
Before making the gas connection, ensure
that the stove you are installing is designed for the
type of gas being supplied. This information can be
found on the Ratings Label on the back of stove. If
the stove has been converted to propane (LP), the
valve cover will have a label stating that the unit has
been converted to propane.
Connect the gas line at the 3/8” pipe
connector on the valve at the back of stove. See
illustration on the next page. We recommend
connecting the stove with an approved flex gas line.
If flex gas lines are not approved in your area, you
cannect a hard pipe to the gas hookup.
You must supply a manual shutoff valve in a
visible location within 3’ (914mm) of the stove.
After running new gas line, or if a gas line has
been disconnected, purging of the gas line may be
necessary. To purge gas line, open the inlet pressure
tap and allow gas to flow through while carefully
CAUTION: In some areas, gas line pressure
may be more than 1/2 PSIG (14”WC). If
you believe that this is the case in your
locality, contact your gas supplier or local
utility company. Line pressure greater than
1/2 PSIG will damage the stove valve. You
must install a regulator upstream from the
stove if line pressure is greater than 1/2
PSIG.
GAS LINE REQUIREMENTS
monitoring for the odor of either natural gas, which
will rise, or propane, which will settle near the
floor. As soon as you smell the gas, discontinue
purging the line. Ensure that the room has plenty
of ventilation and that no sparks or open flames
are near the end of the gas line during the purging
process. Do not try to ignite the stove until any and
all gas accumulation has been cleared from the room.
