Procom PFS MN2PHG Owner's Operation And Installation Manual page 16

WARNING: Test all gas piping
and connections for leaks after
installing or servicing. Correct
all leaks at once.
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect heater with its appliance main
gas valve (control valve) and equipment
shutoff valve from gas supply piping sys-
tem. 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
using compressed air or opening gas sup-
ply valve.
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
using compressed air or opening gas sup-
ply valve.
3. Check all joints from gas supply (see Fig-
ure 15 or 16) to equipment shutoff valve.
Apply a noncorrosive leak detection fluid
to all joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Equipment
Shutoff Valve
Figure 14 - Equipment Shutoff Valve
16
INSTALLATION
CHECKING GAS CONNECTIONS
Open
Closed
www.usaprocom.com
WARNING: Never use an open
flame to check for a leak. Apply a
mixture of liquid soap and water
to all joints. If bubbles form, there
is a leak. Correct all leaks at once.
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap and
water to gas joints. If bubbles form, there
may be a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff
valve to gas supply. Check reconnected
fittings for leaks.
Equipment
Shutoff Valve
Figure 15 - Checking Gas Joints for
Propane/LP Gas
Equipment Shutoff Valve
Figure 16 - Checking Gas Joints for
Natural Gas
Gas Valve
Propane/LP
Supply Tank
Gas Valve
Gas Meter
(Regulator
supplied by
gas company)
200317-01C