Desa Flame-Max VYM27NR Owner's Operation And Installation Manual page 16

pRESSURE TESTING GAS SUppLY
pIpING SYSTEM
Test pressures In Excess Of 1/2 pSIG
(14" W.C.)
1. Disconnect appliance with its appliance
main gas valve (control valve) and equip-
ment shutoff valve from gas supply piping
system. Pressures in excess of 1/2 psig
will damage heater regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
3. 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.
4. Check all joints of gas supply piping sys-
tem. Apply a noncorrosive leak detection
fluid to gas joints. Bubbles forming show
a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff
valve to gas supply. Check reconnected
fittings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (14" W.C.)
1. Close equipment shutoff valve (see Fig-
ure 15).
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 to equip-
ment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figure 16 or
17). Apply a noncorrosive leak detection
fluid to gas joints. Bubbles forming show
a leak.
4. Correct all leaks at once.
Equipment
Shutoff
Valve
Figure 15 - Equipment Shutoff Valve
16
INSTALLATION
Continued
Gas Meter
Propane/LP
Supply Tank
pRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig-
2. Open main gas valve located on or near
3. Make sure control knob of heater is in the
4. Check all joints from equipment shutoff
5. Correct all leaks at once.
Open
6. Light heater (see Operation, page 18).
7. Turn off heater (see To Turn Off Gas to
Closed
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Equipment Shutoff Valve
Figure 16 - Checking Gas Joints for
Natural Gas
Equipment Shutoff Valve
Figure 17 - Checking Gas Joints for
Propane/LP Gas
ure 15).
gas meter for natural gas or open pro-
pane/LP supply tank valve.
OFF position.
valve to control valve (see Figure 16 or
17). Apply a noncorrosive leak detection
fluid to gas joints. Bubbles forming show
a leak.
Check all other internal joints for leaks.
Appliance, page 20).
Control Valve
Location
Control Valve
Location
121353-01F