![background image](http://html1.mh-extra.com/html/desa/gwn10/gwn10_installation-manual_2485896012.webp)
www.desatech.com
117001-01E
12
INSTALLATION
Continued
Figure 16 - Checking Gas Joints for
Propane/LP Gas
Equipment
Shutoff
Valve
Propane/LP
Supply Tank
Figure 15 - Checking Gas Joints for
Natural Gas
Equipment
Shutoff
Valve
Gas
Meter
Control
Valve
Location
Control
Valve
Location
OPERATION
FOR YOUR SAFETY READ
BEFORE LIGHTING
WARNING: If you do not fol-
low these instructions exactly,
a fire or explosion may result
causing property damage, per
-
sonal injury or loss of life.
A. This appliance has a pilot which must
be lighted by hand. When lighting
the pilot, follow these instructions
exactly.
B. BEFORE LIGHTING smell all around
the appliance area for gas. Be sure to
smell next to the floor because some
gas is heavier than air and will settle
on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn by
hand, don’t try to repair it, call a qualified
service technician. Force or attempted
repair may result in a fire or explosion.
D. Do not use this appliance if any part
has been under water. Immediately call
a qualified service technician to inspect
the appliance and to replace any part of
the control system and any gas control
which has been under water.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig
-
ure 14).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
3. Check all joints from gas meter for natural
gas (see Figure 15) or propane/LP supply
tank for propane/LP gas, to equipment
shutoff valve (see Figure 16). Apply a
noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
4. Correct all leaks at once.
PRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig
-
ure 14).
2. For natural gas open main gas valve locat
-
ed on or near gas meter. For propane/LP
gas open propane/LP supply tank valve.
Figure 14 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff Valve
3. Make sure control knob of heater is in the
OFF position.
4. Check all joints from equipment shutoff
valve to thermostat gas valve (see Figure
15 or 16). Apply a noncorrosive leak de
-
tection fluid to all joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light heater (see
Operation
). Check all
other internal joints for leaks.
7. Turn off heater (see
To Turn Off Gas to
Appliance
, page 13).
8. Replace front panel.