Installing Logs - Desa FLAME-MAX VML27NR Owner's Operation And Installation Manual

INSTALLATION
Continued
4. Check all joints of gas supply piping system. Apply a non-
corrosive leak detection fluid to gas joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff valve to gas supply.
Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 20).
2. Pressurize supply piping system by either opening propane/
LP supply tank valve for propane/LP gas, or opening main gas
valve located 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 21 and 22). Apply a noncorrosive
leak detection fluid to gas joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Equipment
Shutoff
Valve
Figure 20 - Equipment Shutoff Valve
Equipment Shutoff Valve
Gas Meter
Figure 21 - Checking Gas Joints for Natural Gas
Propane/LP
Supply Tank
Figure 22 - Checking Gas Joints for Propane/LP Gas
111115-01A
Open
ON
POSIT
O
Closed
POS
Control Valve
Location
Equipment Shutoff Valve
Control Valve Location
For more information, visit www.desatech.com
For more information, visit www.desatech.com
Checking Gas Connections (Cont.)
Pressure Testing Heater Gas Connections
1. Open equipment shutoff valve (see Figure 20).
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 control valve
(see Figure 21 or 22). Apply a noncorrosive leak detection fluid
to gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, pages 14 through 17).
Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 16).

INSTALLING LOGS

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.
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 accord-
ing to the log installation instructions in this manual.
Flames contacting logs will create soot.
It is very important to install the logs exactly as instructed. Do not
modify logs. Only use logs supplied with heater.
1. Place base log (#1) on grate to fit as illustrated in Figure 23.
Make sure open areas of log set line up with burner ports (see
Figure 24, page 14). Log will fit securely on chassis.
IMPORTANT: Make sure log does not cover any burner ports.
Grate
Figure 23 - Installing Bottom Log (#1)
INSTALLATION
13
13
Installing Logs
Bottom Log (#1)
Burner