18-CD25D1-2
35
Installer’s Guide
LIGHTING INSTRUCTIONS
▲
WARNING
!
DO NOT ATTEMPT TO MANUALLY LIGHT THE BURNER.
FAILURE TO FOLLOW THIS WARNING COULD RESULT
IN PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH.
▲
CAUTION
!
If this is done during the cold weather months, provi-
sions must be taken to prevent freeze-up of all water
pipes and water receptacles.
Lighting instructions appear on each unit. Each installa-
tion must be checked out at the time of initial start up to
insure proper operation of all components. Check out
should include putting the unit through one complete
cycle as outlined below.
TABLE 11
ROTATE THE FRONT
COVER INWARD MAKING
SURE THAT ALL SIDE
FLANGES ARE OUTSIDE
OF THE BOX.
INSERT THE TOP FLANGE
OF THE FRONT COVER
UNDER THE LIP INSIDE
THE BOX
ALL SIDE FLANGES MUST
BE OUTSIDE OF THE BOX
ROTATE THE FRONT
COVER AS SHOWN
Figure 34
Figure 33
Orifice
Twist Drill
Size If
Installed
At Sea
Level
ALTITUDE ABOVE SEA LEVEL
and Orifice Required At Other Elevations
2000 3000 4000 5000 6000 7000 8000 9000 10000
42
43
44
45
46
47
42
44
45
46
47
48
43
44
45
47
47
48
43
44
45
47
47
49
43
45
46
47
48
49
44
45
47
48
48
49
44
46
47
48
49
50
45
47
48
49
49
50
46
47
48
49
50
51
47
48
50
50
51
52
54
55
56
57
58
54
55
56
58
59
55
55
56
59
60
55
55
57
59
60
55
56
57
60
61
55
56
57
60
62
55
56
58
61
62
56
56
59
62
63
56
56
59
63
63
56
57
60
63
64
From National Fuel Gas Code - Table F-4
TABLE 10
Turn the main Gas Valve toggle switch (See Figures 30
& 31) within the unit to the “
OFF
” position. Turn the ex-
ternal gas valve to “ON”. Purge the air from the gas
lines. After purging, check all gas connections for leaks
with a soapy solution --
DO NOT CHECK WITH AN
OPEN FLAME.
Allow 5 minutes for any gas that might
have escaped to dissipate.
LP Gas being heavier than air may require forced ventila-
tion. Turn the toggle switch on the Gas Valve in the unit
to the “ON” position.
START-UP AND ADJUSTMENT
PRELIMINARY INSPECTIONS
▲
WARNING
!
Disconnect power to the unit before removing the
blower door. Allow a minimum of 15 seconds for IFC
power supply to discharge to 0 volts.
Failure to follow this warning could result in property
damage, personal injury or death.
With gas and electrical power “OFF”
1. Duct connections are properly sealed
2. Air cleaner and filters(if applicable) are in place
3. Venting is properly assembled
4. Blower door is in place
PART NUMBERS FOR REPLACEMENT ORIFICES
DRILL
SIZE
PART
NUMBER
DRILL
SIZE
PART
NUMBER
44
45
46
47
48
49
50
ORF00501
ORF00644
ORF00909
ORF00910
ORF01099
ORF00503
ORF00493
54
55
56
57
58
59
ORF00555
ORF00693
ORF00907
ORF00908
ORF01338
ORF01339
2nd Stage (HI) Manifold
Pressure Adjustment
Gas Valve On / Off
Toggle Switch
1st Stage (LO)
Manifold Pressure
Adjustment
White-Rodgers 36G
