Technical data

Form RZ-NA I-UDA, Mfg #195673 Rev 4, Page 15
High Altitude
Capacity Changes
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Feet Meters
0-2000 0-610 30000 24600 30000 45000 37350 45000 60000 49800 42000 75000 62250 52500
2001-4500 611-1373 27000 22140 27000 40500 33615 40500 54000 44820 37800 67500 56025 47250
Feet Meters
0-2000 0-610 105000 88200 73500 120000 100800 84000 150000 124500 105000 175000 145250 122500
2001-4500 611-1373 94500 79380 66150 108000 90720 75600 135000 113400 94500 157500 132300 110250
Feet Meters
0-2000 0-610 200000 166000 140000 225000 186750 157500 250000 207500 175000 300000 249000 210000
2001-4500 611-1373 180000 151200 126000 202500 170100 141750 225000 189000 157500 270000 226800 189000
Feet Meters
0-2000 0-610 350000 290500 245000 400000 332000 280000
2001-4500 611-1373 315000 264600 220500 360000 302400 252000
ALTITUDE
Size 30 Size 45 Size 60
Size 100 Size 125
BTUH In
p
uts and Ca
p
acities b
y
Altitude in CANADA for Models UDAP and UDAS
Size 75
Size 250 Size 300
Size 150 Size 175
Size 350 Size 400
Size 200 Size 225
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Normal
Input
Thermal
Output
Capacity
Minimum
Input
Feet Meters
0-2000 0-610 30000 24600 30000 45000 37350 45000 60000 49800 42000 75000 62250 52500
2001-3000 611-915 26400 21648 26400 39600 32868 39600 52800 43824 36960 66000 54780 46200
3001-4000 916-1220 25200 20664 25200 37800 31374 37800 50400 41832 35280 63000 52290 44100
4001-5000 1221-1525 24000 19680 24000 36000 29880 36000 48000 39840 33600 60000 49800 42000
5001-6000 1526-1830 22800 18696 22800 34200 28386 34200 45600 37848 31920 57000 47310 39900
6001-7000 1831-2135 21600 17712 21600 32400 26892 32400 43200 35856 30240 54000 44820 37800
7001-8000 2136-2440 20400 16728 20400 30600 25398 30600 40800 33864 28560 51000 42330 35700
8001-9000 2441-2745 19200 15744 19200 28800 23904 28800 38400 31872 26880 48000 39840 33600
Feet Meters
0-2000 0-610 105000 88200 73500 120000 100800 84000 150000 124500 105000 175000 145250 122500
2001-3000 611-915 92400 77616 64680 105600 88704 73920 132000 109560 92400 154000 127820 107800
3001-4000 916-1220 88200 74088 61740 100800 84672 70560 126000 104580 88200 147000 122010 102900
4001-5000 1221-1525 84000 70560 58800 96000 80640 67200 120000 99600 84000 140000 116200 98000
5001-6000 1526-1830 79800 67032 55860 91200 76608 63840 114000 94620 79800 133000 110390 93100
6001-7000 1831-2135 75600 63504 52920 86400 72576 60480 108000 89640 75600 126000 104580 88200
7001-8000 2136-2440 71400 59976 49980 81600 68544 57120 102000 84660 71400 119000 98770 83300
8001-9000 2441-2745 62832 52779 43982 76800 64512 53760 96000 79680 67200 104720 86918 73304
Feet Meters
0-2000 0-610 200000 166000 140000 225000 186750 157500 250000 207500 175000 300000 249000 210000
2001-3000 611-915 176000 146080 123200 198000 164340 138600 220000 182600 154000 264000 219120 184800
3001-4000 916-1220 168000 139440 117600 189000 156870 132300 210000 174300 147000 252000 209160 176400
4001-5000 1221-1525 160000 132800 112000 180000 149400 126000 200000 166000 140000 240000 199200 168000
5001-6000 1526-1830 152000 126160 106400 171000 141930 119700 190000 157700 133000 228000 189240 159600
6001-7000 1831-2135 144000 119520 100800 162000 134460 113400 180000 149400 126000 216000 179280 151200
7001-8000 2136-2440 136000 112880 95200 153000 126990 107100 170000 141100 119000 204000 169320 142800
8001-9000 2441-2745 128000 106240 89600 144000 119520 100800 160000 132800 112000 179520 149002 125664
Feet Meters
0-2000 0-610 350000 290500 245000 400000 332000 280000
2001-3000 611-915 308000 255640 215600 352000 292160 246400
3001-4000 916-1220 294000 244020 205800 336000 278880 235200
4001-5000 1221-1525 280000 232400 196000 320000 265600 224000
5001-6000 1526-1830 266000 220780 186200 304000 252320 212800
6001-7000 1831-2135 252000 209160 176400 288000 239040 201600
7001-8000 2136-2440 238000 197540 166600 272000 225760 190400
8001-9000 2441-2745 224000 185920 156800 256000 212480 179200
BTUH In
p
uts and Ca
p
acities b
y
Altitude in the UNITED STATES for Model UDAP and Model UDAS
Size 100 Size 125
Size 200 Size 250 Size 300
Size 30 Size 45 Size 60
ALTITUDE
Size 75
Size 150 Size 175
Size 225
Size 400Size 350
The input and/or the capacity of the heater changes with the derate. The tables
below list inputs and capacities at altitudes from sea level to 9000 ft.