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American Standard AUD2B060AFV32A Installer's Manual Page 23

Variable speed, 2-stage, 80% upflow/horizontal gas-fired furnaces, fan assisted combustion system with whole house air cleaner.
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TABLE 10
PART NUMBERS FOR REPLACEMENT ORIFICES
DRILL
PART
SIZE
NUMBER
44
ORF00501
45
ORF00644
46
ORF00909
47
ORF00910
48
ORF01099
49
ORF00503
50
ORF00493
Turn the main Gas Valve toggle switch (See Figures 17)
within the unit to the "OFF" position. Turn the external
gas valve to "ON". Purge the air from the gas lines. Af-
ter 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.
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.
TABLE 11
Orifice
ALTITUDE ABOVE SEA LEVEL
Twist Drill
Size If
and Orifice Required At Other Elevations
Installed
At Sea
Level
2000 3000 4000 5000 6000 7000 8000 9000 10000
42
42
43
43
43
44
44
44
44
45
45
45
45
46
47
47
46
47
47
47
47
48
48
49
54
54
55
55
55
55
55
55
56
56
56
57
57
58
59
59
58
59
60
60
From National Fuel Gas Code - Table F-4
White-Rodgers 36G
Figure 17
Gas Valve On / Off
Toggle Switch
18-CD24D1-2
DRILL
PART
SIZE
NUMBER
54
ORF00555
55
ORF00693
56
ORF00907
57
ORF00908
58
ORF01338
59
ORF01339
43
44
44
45
46
45
45
46
47
47
46
47
47
48
48
47
48
48
49
49
48
48
49
49
50
49
49
50
50
51
55
55
55
56
56
56
56
56
56
56
57
57
58
59
59
60
60
61
62
63
61
62
62
63
63
2nd Stage (HI)
Manifold
Pressure
Adjustment
1st Stage (LO)
Manifold
Pressure
Adjustment
START-UP AND ADJUSTMENT
PRELIMINARY INSPECTIONS
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.
47
48
50
50
51
52
56
57
60
63
If this is done during the cold weather months, provi-
64
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.
Turn on the main electrical supply and set the Comfort
Control above the indicated temperature. The ignitor
will automatically heat, then the Gas Valve is energized
to permit the flow of gas to the burners. After ignition
and flame is established, the flame control module
monitors the flame and supplies power to the Gas Valve
until the Comfort Control is satisfied.
To shut off.
Installer's Guide
WARNING
!
Figure 18
ROTATE THE FRONT
COVER AS SHOWN
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 INWARD MAKING
SURE THAT ALL SIDE
FLANGES ARE OUTSIDE
OF THE BOX.
CAUTION
!
23

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