Trane UD1A040A9241A Series User Manual

18-CD19D7-22 19
Installer’s Guide
White-Rodgers 36J gas valve
TABLE 12
ORIFICE SIZES
INPUT
RATING
BTUH
NUMBER
OF
BURNERS
MAIN BURNER ORIFICE
DRILL SIZE
NAT. GAS LP GAS
40,000
60,000
80,000
100,000
120,000
140,000
2
3
4
5
6
7
45
45
45
45
45
45
56
56
56
56
56
56
TABLE 13
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
HIGH ALTITUDE DERATE
Input ratings (BTUH) of these furnaces are based on sea
level operation and should not be changed at elevations up to
2,000 ft.
If the installation is 2,000 ft. or above, the furnace input rate
(BTUH) shall be reduced 4% for each 1,000 ft. above sea
level. The furnace input rate shall be checked by clocking
the gas flow rate (CFH) and multiplying by the heating value
obtained from the local utility supplier for the gas being
delivered at the installed altitude. Input rate changes can be
made by adjusting the manifold pressure (min 3.0 - max
3.7 in. W.C. - Natural Gas) or changing orifices (orifice
change may not always be required). If the desired input rate
cannot be achieved with a change in manifold pressure, then
the orifices must be changed. LP installations will require an
orifice change.
IMPORTANT: Reinstall the propane orifices to the same depth
as the orifices supplied with the equipment.
See Table 15 (page 20) for help in selecting orifices if orifice
change is required. Furnace input rate and temperature rise
should be checked again after changing orifices to confirm
the proper rate for the altitude.
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 14
GAS FLOW IN CUBIC FEET PER HOUR
2 CUBIC FOOT DIAL
SEC. FLOW SEC. FLOW SEC. FLOW SEC. FLOW
8 900 29 248 50 144 82 88
9 800 30 240 51 141 84 86
10 720 31 232 52 138 86 84
11 655 32 225 53 136 88 82
12 600 33 218 54 133 90 80
13 555 34 212 55 131 92 78
14 514 35 206 56 129 94 76
15 480 36 200 57 126 96 75
16 450 37 195 58 124 98 73
17 424 38 189 59 122 100 72
18 400 39 185 60 120 104 69
19 379 40 180 62 116 108 67
20 360 41 176 64 112 112 64
21 343 42 172 66 109 116 62
22 327 43 167 68 106 120 60
23 313 44 164 70 103 124 58
24 300 45 160 72 100 128 56
25 288 46 157 74 97 132 54
26 277 47 153 76 95 136 53
27 267 48 150 78 92 140 51
28 257 49 147 80 90 144 50
Outlet Pressure Boss
Outlet Pressure Boss
On/O
ff
ff
Swi
Swit
ch
ch
In
let Pressure
let Pressure
Boss
Boss (opt
.)
.)
Reg
ul
ula
tor
tor
Adj
Adj
ust
ust
White-Rodgers 36G gas valve
Installation of this furnace at altitudes above 2,000 ft.
(610m) shall be in accordance with the local codes, or in the
absence of local codes, the National Fuel Gas Code, ANSI
Z223.1/ NFPA 54 or National Standard of Canada, Natural
Gas and Propane Installation Code, CSA 149.1. Installation of
this furnace at altitudes above 2,000 ft. (610m) shall be made
in accordance with the listed high Altitude Conversion Kit
available with this furnace.
j
Inlet Pressure
Boss (opt.)
Outlet Pressure Boss
Regulator
Adjustment
On/Off Switch
k

Trane UD1A040A9241A Series Specifications

General

Brand	Trane
Model	UD1A040A9241A Series
Category	Furnace
Language	English