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INSTALLATION
12
Gas Line Hook-Up (Cont.)
Grate Placement
Ember and Pan Material Placement
INSTALLATION
Continued
DESA recommends that a black iron gas line be routed from the gas
source, through a sediment trap (shown in Figure 19), and into the
appliance, Once connected through the appliance, a flexible gas line
may be used for ease of installation to gas control valve (see Figure 20).
Before connecting the black iron gas line to the inside of the appliance
a sediment trap must be included outside the appliance between the gas
line and the gas shutoff valve. It must extend down three (3) inches
beyond the center of the pipe. Prepare incoming black iron gas line with
teflon tape or pipe joint compound (Check with local building codes).
CAUTION: Compounds used on threaded joints
of gas piping shall be resistant to the action of
Liquefied Petroleum (LP or propane), and should be
applied lightly to ensure excess sealant does not
enter the gas line.
WARNING: All gas piping and connections must
be tested for leaks after the installation is completed.
After ensuring that the gas valve is on, apply a
noncorrosive leak detection solution to all connec-
tions and joints. If bubbles appear, leaks can be
detected and corrected.
Do not use an open flame for leak testing and do not
operate any appliance if a leak is detected.
Complete your gas installation by connecting incoming gas line
with flexible gas line. Secure tightly with wrench but DO NOT
OVERTIGHTEN.
Sediment Trap
(Not Supplied)
3" Min.
(76mm)
Figure 19 - Sediment Trap
Flexible Gas Line
Gas Shutoff
Do NOT Kink
Valve
Note:
1) Wire Connections
1/2" NPT
Not Shown for Clarity
Incoming
2) * 1/8" NPT Plugged
Gas Line
Tapping
Figure 20 - Connecting Flexible Gas Line to Millivolt Valve
Incoming 1/2" Gas Line
Permitted by Local Codes
Red Surface Indicates For
Propane/LP Use Only
Pilot Adj
ON
OFF
IN
OUT
Outlet
Inlet
Pressure
Pressure
Tap
Tap
For more information, visit www.desatech.com
For more information, visit www.desatech.com
GRATE PLACEMENT
The grate must be placed in the burner pan so that the back grate fingers
(P325/VP325) or pins (P324/VP324) fit into the notches on back of
burner pan and front legs fit inside burner pan as shown in Figure 21.
Pins
Notches
P324/VP324 (Back)
Back Grate Fingers
Notches
P325/VP325 (Back)
Figure 21 - Placing Grate into Burner Pan
EMBER AND PAN MATERIAL PLACEMENT
1. Open the bag(s) of vermiculite and fill the entire burner pan
until the burner tube is completely covered (see Figure 22).
2. Smooth the pan material just even with edges of the burner pan.
3. Remove the ember material from the bag and flatten small
amounts into quarter size pieces and lay on top of the surface
of the pan material (see Figure 23, page 13).
4. Place just enough to cover the entire surface and leave about a
1/2 inch gap under the lower grate members to allow air to
flow (see Figure 24, page 13).
Vermiculite
(Pan Material)
Grate
Figure 22 - Fill Entire Burner Pan with Vermiculite (P325/VP325
Models Shown)
Pins
Front
Leg
Burner Pan
Back Grate Fingers
Front
Leg
Burner Pan
Burner Pan
108660-01D
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