UDX Submittal
3
Size 30 45 60 75 100 125
Input Heating Capacity
BTUH 30,000 45,000 60,000 75,000 105,000 120,000
kw/h 8.8 13.2 17.6 22.0 30.8 35.2
Thermal Efficiency (%) 82 83 83 83 83 83
Output Heating
Capacity
C
BTUH 24,600 37,350 49,800 62,250 87,150 99,600
kw/h 7.2 11.0 14.6 18.3 25.6 29.2
Gas Connection
(inches)
D
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 Size
E
(inches
diameter)
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 3.7 4.3 5.6
Maximum Over Current Protection
(115V)
F
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
0.96 0.96 1.25 1.25 2.01 2.01
M
2
0.09 0.09 0.12 0.12 0.19 0.19
Output Velocity
FPM 475 656 616 770 668 763
M/minute 145 200 188 238 196 245
Fan Motor HP
G
Open 0.02 0.03 0.03 0.06 1/30 1/20
Enclosed 0.06 0.06 0.06 0.06 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
Approximate Net
Weight
lbs 57 62 71 76 101 106
kg 26 28 32 34 46 48
Approximate Ship
Weight
lbs 63 68 76 81 120 125
kg 29 31 34 37 54 57
C
ETL rating for altitudes to 2000 ft.
D
Size shown is for gas connection to a single stage gas valve, not supply line size.
E
Smaller or larger vent pipe diameters may be allowed; refer to the Venting Installation Manual, Form I-V-PV. If vent diameter is different from vent connection, reducer/
enlargers will be field-required.
F
MOP = 2.25 x largest motor FLA + remaining load. Answer is rounded down to the next size of commercially available circuit breaker or fuse.
G
All other information in this table is based on a heater equipped with a standard 115 volt open fan motor."
TECHNICAL DATA








