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111160-01B
For more information, visit www.desatech.com
For more information, visit www.desatech.com
13
13
INSTALLATION
Continued
ON
POSITION
OFF
POSITION
Figure 17 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 18 - Checking Gas Joints (Propane/LP Gas Models)
Equipment
Shutoff Valve
Propane/LP
Supply Tank
Thermostat Gas Valve or
Control Valve Location
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 17).
2. Pressurize supply piping system by either opening propane/LP sup-
ply tank valve for propane/LP gas or opening main gas valve lo-
cated 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 18 and 19). Apply 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 propane/LP supply tank valve.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to thermostat
gas valve (Thermostat-Controlled Models), to control valve
(Manually-Controlled Models), or to gas control (Remote-
Ready Models)(see Figures 18 and 19). Apply noncorrosive
leak detection fluid to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
WARNING: Failure to position the parts in accor-
dance with these diagrams or failure to use only parts
specifically approved with this heater may result in
property damage or personal injury.
INSTALLING LOGS
Each log is marked with a number. These numbers will help you
identify the log when installing. It is very important to install these
logs exactly as instructed. Do not modify logs. Only use logs
supplied with heater.
1. Locate pins on the bottom of back log (#1). Slide these pins
into the holes in the grate base behind the burner (see Figure
20, page 14).
2. Place the base of the middle log (#2) in the U-shaped slots of
the grate base in front of the back log. The cutout on the right
of the middle log should fit over the burner (see Figure 21,
page 14). Make sure the front of the middle log is resting on
the tabs of the grate base and the cutout area is centered over
the burner “U” bend.
Dual Burner Smoky Mountain Oak Models
CGD3018PT/NT, CGD3924PT/NT
CAUTION: After installation and periodically there-
after, check to ensure that no flame comes in contact
with any log. With the heater set to HI, check to see
if flames contact any log. If so, reposition logs
according to the log installation instructions in this
manual. Flames contacting logs will create soot.
INSTALLATION
Checking Gas Connections (Cont.)
Installing Logs
6. Light heater (see Operating Heater, pages 17 and 19 [manu-
ally-controlled models] or pages 19 and 20 [thermostatically-
controlled models]). Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 18
[manually-controlled models] or page 20 [thermostatically-con-
trolled models]).
Figure 19 - Checking Gas Joints (Natural Gas Models)
Gas Meter
Equipment
Shutoff Valve
Thermostat Gas Valve or
Control Valve Location