Pressure Testing Gas Supply Piping System; Pressure Testing Heater Gas Connections; Checking Gas Joints - Superior VD1824NR Operation Instructions Manual

CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply
and heater. See guidelines un-
der Connecting to Gas Supply,
page 13.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
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
(3.5 kPa) 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 system.
Apply noncorrosive leak detection fluid to
all 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 (3.5 kPa)
1. Close equipment shutoff valve (see
Figure 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 equipment
shutoff valve for natural gas or propane/
LP supply to equipment shutoff valve for
propane/LP (see Figures 16 and 17). Ap-
ply 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
Figure 17).
2. Open main gas valve located on or near
gas meter for natural gas or open pro-
pane/LP supply tank valve.
126839-01A
INSTALLATION
Continued
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3. Make sure control knob of heater is in the
OFF position.
4. Check all joints from equipment shutoff
valve to gas control (see Figures 16 and
17). Apply noncorrosive leak detection
fluid to all joints. Bubbles forming show a
leak.
5. Correct all leaks at once.
6. Light heater (see Operation, page 20).
Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 21).
Equipment
Shutoff
Valve
Figure 15 - Equipment Shutoff Valve
Propane/LP
Supply Tank
Figure 16 - Checking Gas Joints
(Propane/LP Model Shown)
Gas Meter
Figure 17 - Checking Gas Joints (Natural
Gas Only)
Open
Closed
Equipment
Shutoff Valve
Gas Control
Valve Location
Equipment
Shutoff Valve
Gas Control Valve
Location
15