Desa FVFM27PR Owner's Operation And Installation Manual page 15

Unvented (vent-free) gas log heater
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INSTALLATION
Continued
pRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 15,
page 14).
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 16 or 17, page 14).
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 16).
Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appli-
ance, page 17).
INSTALLING LOGS
WARNING: Failure to position
the parts in accordance with these
diagrams or failure to use only
parts specifically approved with
this heater may result in property
damage or personal injury.
CAUTION: After installa-
tion and periodically thereafter,
check to ensure that no flame
comes in contact with any log.
With the heater set to High, check
to see if flames contact any log. If
so, reposition logs according to
the log installation instructions
in this manual. Flames contact-
ing 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 bottom log (#1) on grate to fit as illustrated
in Figure 18. Make sure open areas of log set line
up with burner ports (see Figure 19). Log will fit
securely on chassis. IMPORTANT: Make sure
log does not cover any burner ports.
2. Facing front of unit, place top log (#2) onto
the pegs in the center of the bottom log (see
Figure 20).
108382-01G
3. Position log piece (#3) by aligning holes on
underside with remaining pegs on bottom log
(see Figure 21, page 16).
4. Place lava rock around base of heater.
Grate
Figure 18 - Installing Bottom Log (#1)
Burner Ports
Figure 19 - Installing Log set (Top View)
Figure 20 - Installing Top Log (#2)
www.desatech.com
Chassis
Peg
Bottom Log (#1)
Burner Port
Burner
Logs
Top Log
(#2)
15

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