Desa VTD-30N-JHB Electric Heater User Manual


 
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114370-01D8
INSTALLATION
Continued
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open ame to check for a leak.
Apply a noncorrosive leak detec-
tion uid 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
(3.5 kPa)
1. Disconnect log set with its individual equip-
ment shutoff valve from gas supply piping
system.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either us-
ing compressed air or opening main gas valve
located on or near gas meter.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection uid to gas
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect log set and equipment shutoff valve
to gas supply. Check reconnected ttings for
leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 5).
2. Pressurize supply piping system by either us-
ing compressed air or opening main gas valve
located on or near gas meter.
3. Check all joints from gas meter to equip-
ment shutoff valve (see Figure 6). Apply
noncorrosive leak detection uid to all joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
Figure 5 - Equipment Shutoff Valve
Equipment
Shutoff
Valve
Open
Closed
Figure 6 - Checking Gas Joints
HEARTH KIT ASSEMBLY AND
INSTALLATION
1. Determine which side the gas line will be
coming into the replace.
NOTICE: Unit comes preassembled with gas
inlet on right side. If your replace gas supply
is on the left, gas inlet should be repositioned
to left side of unit.
2. If gas supply line in your replace is on the right
side, continue to step 3. If not, see Reposition-
ing the Gas Inlet to the Left Side of Unit.
3. Install adapter tting that comes with log set
into replace gas supply pipe (see Figure 7).
Seal using thread sealant.
Figure 7 - Connecting Adapter to Gas
Supply
Gas
Connector
Tube
Adapter
Fitting
Gas Inlet
Fitting
Equipment
Shutoff Valve
Gas Meter