14
I-UBX-UBZ-UDX-UDZ (03-21) 1034344-0
Table 11. Technical Data for UDX and UDZ Models (Unit Sizes 030–125)
Parameter
Unit Size
Unit of
Measurement
030 045 060 075 100 125
Input heating capacity
30,000 45,000 60,000 75,000 105,000 120,000 BTUh
8.8 13.2 17.6 22.0 30.8 35.2 kWh
Thermal efficiency 82 83 83 83 %
Output heating capacity
1
24,600 37,350 49,800 62,250 87,150 99,600 BTUh
7.2 10.9 14.6 18.2 25.5 29.2 kWh
Gas connection, natural
2
1/2 1/2 1/2
Inches
Gas connection, propane
2
1/2 1/2 1/2
Vent connection diameter
3
4 4 4
Combustion air inlet diameter (UDZ models)
3
4 4 4
Control, 24V 1.0 1.0 1.0
Amps
Full load amps, 115V 1.9 2.4 2.4 3.7 4.3 5.6
Maximum overcurrent protection (115V)
4
15 15 15
Normal power consumption (UDX models) 109 155 155 217 276 354
Watts
Normal power consumption (UDZ models) 109 155 155 228 292 370
Discharge air temperature rise 50 55 60 60 °F
Air volume
456 629 769 961 1345 1537 cfm
12.9 17.8 21.8 27.5 36.7 45.9 Meter
3
/minute
Discharge air opening area
0.96 1.25 2.01 Foot
2
0.09 0.12 0.19 Meter
2
Output velocity
475 656 616 770 668 763 fpm
145 200 188 235 204 233 Meter/minute
Open fan motor size 0.02 0.03 0.03 0.06 1/30 1/20
Horsepower
Enclosed fan motor size 0.06 0.06 1/4
Fan motor speed 1550 1550 1050 rpm
Fan diameter 10 12 16 Inches
Sound level @ 15 feet 40 40 49 54 55 dba
1
CSA ratings for elevations up to 2,000 feet.
2
Size shown is for gas connection to a single-stage gas valve—not supply line size.
3
Smaller and/or larger vent and combustion air pipe diameters may be permissible. Refer to appropriate venting instructions listed in Table 1.
4
MOCP = 2.25 × (largest motor FLA) + smallest motor FLA. Answer is rounded to the next lower standard circuit breaker size.
GENERAL INFORMATION—CONTINUED
Acoustical Considerations—Continued