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Form I-UDA, P/N 195673 R24, Page 38
APPENDIX
TECHNICAL DATA - Sizes 150 - 400 (Data applies to both Models UDAP and UDAS unless noted otherwise.)
Size 150 175 200 225 250 300 350 400
Input Heating Capacity
BTUH 150,000 175,000 200,000 225,000 250,000 300,000 350,000 400,000
kw 43.9 51.2 58.6 65.9 73.2 87.8 102.5 117.1
Thermal Efciency (%) 83 83 83 83 83 83 83 83
Output Heating Capacity
A
BTUH 124,500 145,250 166,000 186,750 207,500 249,000 290,500 332,000
kw 36.4 42.5 48.6 54.7 60.8 72.9 85.1 97.2
Gas Connection (inches)
B
Natural 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4
Propane 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4
Vent Connection
C
(inches diameter) 5 5 5 5 5 6 6 6
Combustion Air Inlet
C
(inches diameter) - UDAS only 6 6 6 6 6 6 6 6
Control Amps (24 volt) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Full Load Amps (115 volt) 3.8 3.8 4.6 7.5 7.5 10.7 10.7 10.7
Maximum Over Current
Protection
D E
Standard 115V 15 15 15 15 15 20 20 20
Optional 208V or 230V 15 15 15 15 15 15 15 15
Normal Power Consumption (watts) 392 392 491 747 747 1086 1086 1086
Discharge Air Temperature Rise (°F) 60 60 60 60 60 60 60 60
Air Volume
CFM 1921 2242 2562 2882 3202 3843 4483 5123
M
3
/minute 54.4 63.5 72.5 81.6 90.7 108.8 126.9 145.1
Discharge Air Opening Area
ft
2
2.6 2.6 2.6 3.5 3.5 4.8 4.8 4.8
M
2
0.2 0.2 0.2 0.3 0.3 0.5 0.5 0.5
Output Velocity
FPM 752 877 1003 820 911 802 936 1069
M/minute 229 267 306 250 278 244 285 326
Fan Motor HP
E
Standard Open 1/6 1/6 1/6 1/4 1/4 1/2 1/2 1/2
Optional Enclosed 1/4 1/4 1/4 1/4 1/4 1/2 1/2 1/2
Fan Motor RPM 1050 1050 1050 1050 1050 1050 1050 1050
Fan Diameter (inches) 18 18 18 20 20 24 24 24
Sound Level dba @ 15 ft 51 52 53 56 56 59 61 62
TECHNICAL DATA - Sizes 30 - 125 (Data applies to both Models UDAP and UDAS unless noted otherwise.)
Size 30 45 60 75 100 125
Input Heating Capacity
BTUH 30,000 45,000 60,000 75,000 105,000 120,000
kw 8.8 13.2 17.6 22.0 30.8 35.2
Thermal Efciency (%) 82 83 83 83 83 83
Output Heating Capacity
A
BTUH 24,600 37,350 49,800 62,250 87,150 99,600
kw 7.2 11.0 14.6 18.3 25.6 29.2
Gas Connection (inches)
B
Natural 1/2 1/2 1/2 1/2 1/2 1/2
Propane 1/2 1/2 1/2 1/2 1/2 1/2
Vent Connection
C
(inches diameter) 4 4 4 4 4 4
Combustion Air Inlet
C
(inches diameter) - UDAS only 4 4 4 4 4 4
Control Amps (24 volt) 1.0 1.0 1.0 1.0 1.0 1.0
Full Load Amps (115 volt) 1.9 2.4 2.4 3.3 3.9 5.1
Maximum Over Current
Protection
D E
Standard 115V 15 15 15 15 15 15
Optional 208V or 230V 15 15 15 15 15 15
Normal Power Consumption (watts) 109 155 155 217 276 354
Discharge Air Temperature Rise (°F) 50 55 60 60 60 60
Air Volume
CFM 456 629 769 961 1345 1537
M
3
/minute 12.9 17.8 21.8 27.5 36.7 45.9
Discharge Air Opening Area
ft
2
1.0 1.0 1.2 1.2 2.0 2.0
M
2
0.1 0.1 0.1 0.1 0.2 0.2
Output Velocity
FPM 475 656 616 770 668 763
M/minute 145 200 188 238 196 245
Fan Motor HP
E
Standard Open 0.0 0.0 0.0 0.1 1/30 1/20
Optional Enclosed N.A. N.A. N.A. N.A. 1/4 1/4
Fan Motor RPM 1550 1550 1550 1550 1050 1050
Fan Diameter (inches) 10 10 12 12 16 16
Sound Level dba @ 15 ft 40 40 40 49 54 55
A
CSA ratings for altitudes to 2000 ft.
B
Size shown is for gas connection to a single-stage gas valve, not supply line size.
C
Smaller and/or larger vent and combustion air pipe diameters may be permissible. For Model UDAS refer to the Venting Installation Manual for
Separated Combustion Units. For Model UDAP refer to the Venting Installation Manual for Power Vented units. For a Model UDAP with Option AV6,
refer to the Venting Installation Manual for Common Venting.
D
MOCP = 2.25 x (largest motor FLA) + smallest motor FLA. Answer is rounded to the next lower standard circuit breaker size.
E
Except where indicated, information in this table is based on a heater equipped with a standard 115 volt open fan motor.
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