Lennox DVR5-CMNS User Manual

Figure 22
Appliance Operation
Step 11. Checking the System — With gas line
installed run initial system checkout before
closing up the front of the unit. Follow the pilot
lighting instructions on page 20 for millivolt
appliances. Refer to page 22 for electronic
appliance lighting instructions.
Nofe: Instructions are also found on the pull out
panel located on the bottom surface of the
appliance.
Note: The safety switch must be held closed for
burner operation when testing.
When first lighting the appliance, it will take a
few minutes for the ine to purge itself of air.
Once purging is complete, the pilot and burner
willlightand operate as indicated inthe instruc-
tion manual. Subsequent lightings of the appli-
ance will not require such purging. Inspect the
pilot flame (remove logs, if necessary, handling
carefully)
Millivolt Appliance Checkout
The pilot flame should be steady, not lifting or
floating. Flame should be blue in color with
traces of orange at the outer edge.
The top 9" (10 mm) at the pilot generator
(thermopile) and the top %" min (tip} of the
quick drop out thermocouple should be en-
guifed in the pilot flame. The flame should
project 1° (25 mm) beyond the hood at all three
ports (Figure 23).
Ye" Min
Figure 23
Replace logs if removed for pilot inspection.
To light the burner; turn “ON” the remote wall
switch, manually depress and hold the door
switch (Figure 24 ) and rotate the gas valve
control knob counterclockwise to the “ON”
position (“ON” will be at the bottom side of the
valve).
Figure 24
Electronic Appliance Checkout
To light the burner, turn ‘ON’ the optional
remoie wall switch, manuaily depress and hoid
the door switch (Figure 24) and turn the gas
control switch to the “ON” position. Ensure the
ignitor lights the pilot. The pitot flame should
engulf the flame rod as shown in Figure 25.
8 To 4/2 Inch
ot
Proper Flame
Adjustment
Ground
Electrode
Flame fod
Hot Surface
inniter
Figure 25
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Step 12. installing the Glass Deoi Frame —
Retrieve the glass door frame. Visually inspect
the gasket on the backside of the panel. Gasket
surface must be clean, free of irregularities and
seated firmly.
Position the door frame in front of the firebox
opening, with the joint in the gasket down
(Figure 26 y. Locate the three (3) tabs at the
bottom edge of the door frame into thethree (3)
brackets at the base of the fireplace front open-
ing. Lean the door frame back towards the
fireplace ensuring that the gasket seats evenly
as the door frame draws shut. Install the three
(3) %4"-20 x 1° Phillips pan head screws re-
moved previously and tighten to secure. En-
sure that the tab on the bottom of the door.
frame engages the door switch.
Make sure the screws are tightened equaily.to
avoid torquing the door.
Figure 26
WARNING: HANDLE THIS GLASS WITH
EXTREME CARE! TEMPERED GLASS iS
SUSCEPTIBLE TO DAMAGE -—- DO NOT
SCRATCH WHILE HANDLING OR WHILE
RE-INSTALLING THE GLASS DOOR
FRAME.
Step 13. Burner Adjustments — The following
paragraphs address burner adjustment con-
cerns and procedures.
ae
f i r e - p a r t s . c o m

Lennox DVR5-CMNS Specifications

General

Brand	Lennox
Model	DVR5-CMNS
Category	Fireplace Accessories
Language	English