Desa SMS24 - Manual (Page 7)

www.desatech.com 117536-01B 7
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
flame to check for a leak. Apply a
noncorrosive leak detection fluid
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 and its individual equipment
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 fluid 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 fit-
tings 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.
INSTALLATION
Continued
Figure 5 - Checking Gas Joints
Gas Meter
Equipment Shutoff Valve
Burner Orifice
(Factory Installed)
Burner Inlet Venturi
(Attached to Pan
Bottom)
Gas Connector
Tube
Figure 6 - Connecting Gas to Appliance
Adapter
Fitting
Burner Inlet Fitting
(Factory Installed)
3. Check all joints from gas meter to equipment
shutoff valve (see Figure 5). Apply noncorro-
sive leak detection fluid to gas joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
HEARTH KIT ASSEMBLY AND
INSTALLATION
Kit Assembly - Ramp Pan Burner
1. Determine which side the gas line feeds into
the fireplace. This log set is factory set up for
right side (facing) gas feed. If your gas line is
on the right side, go to the Installation and Gas
Connection section below. If your gas line is
on the left side of the fireplace, proceed with
steps 2 through 4 below. Note: Pilot kit can
only be installed on the right (facing) side.
2. Remove the nuts securing the gas inlet venturi
to the bottom of the burner (see Figure 6).
3. Remove the venturi from the pan taking care
not to damage the gasket between the venturi
and the pan.
4. Reverse the direction of the venturi and re-attach
to the bottom of the pan using factory nuts.
Installation and Gas Connection
1. Place the ramp burner assembly in the center
of the fireplace floor. Make sure the front of
pan faces forward.
2. Thread the gas supply fitting to the fireplace
gas supply pipe. Use thread sealant.
3. Install the gas connector tube to the gas supply
fitting. Carefully shape tube to attach to adapter
fitting. Be careful not to cause kinks in tube.
4. Attach opposite end of gas connector tube to
the gas inlet fitting on the end of the venturi.