Checking Gas Connections - Desa UNVENTED (VENT-FREE) PROPANE/LP GAS FIREPLACE Owner's Operating & Installation Manual

INSTALLING
Continued
18
3. Route flexible gas line from manual shutoff valve to fireplace. Route flexible gas supply line
through one of the access holes.
Most building codes do not permit concealed gas connections. A flexible gas line
is provided to allow accessibility from the fireplace. The flexible gas supply line
connection to the manual shutoff valve should be accessible.
4. Attach a 45 flare union gas connector to flexible gas line from gas supply (see Figure 20).
Connect flare union to flexible gas line attached to gas regulator of fireplace (see Figure 20).
5. Check all gas connections for leaks. See Checking Gas Connections, below.
6. Replace log base assembly back into fireplace. Feed flexible gas line into fireplace base area
while replacing log base assembly. Make sure the entire flexible gas line is in fireplace base
area. Reattach log base assembly to fireplace with screws removed in step 3.
To Fireplace
Gas Regulator
Flexible Gas Line from
Fireplace Gas Regulator
Figure 20 - Attaching Flexible Gas Lines Together

CHECKING GAS CONNECTIONS

Test all gas piping and connections for leaks after installing or servicing. Correct
all leaks at once.
Never use an open flame to check for a leak. Apply a mixture of liquid soap and
water to all joints. Bubbles forming show a leak. Correct all leaks at once.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG
1. Disconnect fireplace and its individual manual shutoff valve from gas supply piping system.
Pressures in excess of 1/2 psig will damage fireplace gas regulator.
2. Cap off open end of gas pipe where manual shutoff valve was connected.
3. Pressurize supply piping system by either using compressed air or opening main gas valve
located on or near gas meter.
4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Re-connect fireplace and manual shutoff valve to gas supply. Check re-connected fittings for
leaks.
NOTICE
Flare Union
Flexible Gas Line from
Manual Shutoff Valve
WARNING
WARNING ICON G 001
WARNING
WARNING ICON G 001
Manual Shutoff Valve
To Gas Meter
103415