Start Up And Adjustment - Trane UC1B040A9241A series Installer's Manual

TABLE 16
GAS FLOW IN CUBIC FEET PER HOUR
2 CUBIC FOOT DIAL
SEC. FLOW SEC. FLOW SEC. FLOW SEC. FLOW
8 900 29 248
9 800 30 240
10 720 31 232
11 655 32 225
12 600 33 218
13 555 34 212
14 514 35 206
15 480 36 200
16 450 37 195
17 424 38 189
18 400 39 185
19 379 40 180
20 360 41 176
21 343 42 172
22 327 43 167
23 313 44 164
24 300 45 160
25 288 46 157
26 277 47 153
27 267 48 150
28 257 49 147
T
IMPORTANT:
Reinstall the propane orifices to the same depth as the
orifices supplied with the equipment.
See Table 18 for help in selecting orifices if orifice
change is required. Furnace input rate and tempera-
ture rise should be checked again after changing ori-
fices to confirm the proper rate for the altitude.
18-CD19D5-25
50 144 82 88
51 141 84 86
52 138 86 84
53 136 88 82
54 133 90 80
55 131 92 78
56 129 94 76
57 126 96 75
58 124 98 73
59 122 100 72
60 120 104 69
62 116 108 67
64 112 112 64
66 109 116 62
68 106 120 60
70 103 124 58
72 100 128 56
74 97 132 54
76 95 136 53
78 92 140 51
80 90 144 50
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.
Installer's Guide
Installations above 4,000 feet may require a pressure
switch change. If required, use the BAYHALT*** Kit
(High Altitude Accessory Kit) listed in PRODUCT DATA.
TABLE 16
PART NUMBERS FOR REPLACEMENT ORIFICES
DRILL PART
SIZE NUMBER
44 ORF00501
45 ORF00644
46 ORF00909
47 ORF00910
48 ORF01099
49 ORF00503
50 ORF00493
REINSTALLATION OF THE BURNER BOX COVER
Figure 55 shows the correct way to reinstall the burner
box cover if adjustment or replacement of the flame
sensor, hot surface igniter, or main burner orifices have
required removal of the cover.
TABLE 17
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
▲
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow the installation instructions for the
venting system being placed into operation could
result in carbon monoxide poisoning or death.

START UP AND ADJUSTMENT

PRELIMINARY INSPECTIONS
With gas and electrical power "OFF"
1. Duct connections are properly sealed
2. Filters are in place
3. Venting is properly assembled
4. Blower door is in place
Flip the switch on main gas valve within the unit to the
"OFF" position. Turn the external 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 ventilation. Flip the switch on the gas valve in
the unit to the "ON" position.
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
47
48
50
50
51
52
56
57
60
63
64
35