Desa 10542 - Manual (Page 14)

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Figure 18 - Checking Gas Joints for
Propane/LP Gas
Equipment Shutoff Valve
Propane/LP
Supply Tank
Figure 17 - Checking Gas Joints for
Natural Gas
Equipment Shutoff Valve
Gas
Meter
INSTALLATION
Continued
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 16).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve lo-
cated on or near gas meter for natural gas, or
using compressed air.
3. Check all joints from gas meter for natural
gas (see Figure 17) or propane/LP supply tank
for propane/LP gas, to equipment shutoff
valve (see Figure 18). Apply a noncorrosive
leak detection fluid to all joints. Bubbles form-
ing show a leak.
4. Correct all leaks at once.
PRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 16).
2. For natural gas open main gas valve located
on or near gas meter. For propane/LP gas open
propane/LP supply tank 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 17 or 18).
Apply a noncorrosive leak detection fluid to
all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, starting
on page 15). Check all other internal joints
for leaks.
7. Turn off heater (see To Turn Off Gas to Appli-
ance, page 16 or 17, depending on your model
heater).
8. Replace front panel.
Figure 16 - Equipment Shutoff Valve
ON
POSIT
O
PO
Open
Closed
Equipment
Shutoff Valve