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RAPID™ UHA Gas Fired Axial Fan Warm Air Unit Heater
Technical Data

UHA Low Profile Range

Model
 
30
45
60
75
100
125
Total Input
[Btu/h] x [1000]
30
45
60
75
100
125
Total Output
[Btu/h] x [1000]
24.6
36.9
49.2
61.5
82
102.5
Efficiency
 
82%
Number of Burners
 
2
3
4
5
6
7
Gas Connection
[in]
3/8
3/8
1/2
1/2
1/2
1/2
Inlet Pressure
[in wc] NG Min.
5
 
LPG Propane Min.
12
 
NG & LP Propane Max.
14
Electrical Supply
 
115 V / 60Hz / 1 Ø
Full Load Amps @ 115 V
 
3.0
3.0
4.1
4.1
5.8
5.8
               
Air Volume
[CFM]
691
691
1376
1376
1902
1902
Recommended Maximum Mounting Height
[ft]
12
12
15
15
20
20
Number of Axial Fans
 
1
Axial Fan Diameter
[in]
10
10
16
16
16
16
               
Horsepower
 
.06
.06
.08
.08
.2
.2
Fan Motor Amps @ 115 V
 
1.8
1.8
2.6
2.6
4.3
4.3
Fan Motor RPM
 
1630
1630
1030
1030
1175
1175
Fan Motor Type
 
SP
SP
SP
SP
PSC
PSC
Flue Size
[in]
4
Combustion Air Size
[in]
4
Weight
[lb]
65
70
85
90
105
110


UHA Standard Profile Range

Model
 
150
175
200
225
250
300
350
400
Total Input
[Btu/h] x [1000]
150
175
200
225
250
300
350
385
Total Output
[Btu/h] x [1000]
123
143.5
164
184.5
205
246
288.6
315.7
Efficiency
 
82%
Number of Burners
 
7
8
9
10
11
12
14
14
Gas Connection
[in]
1/2
1/2
1/2
3/4
3/4
3/4
3/4
3/4
Inlet Pressure
[in wc] NG Min.
5
 
LPG Propane Min.
12
 
NG & LP Propane Max.
14
 
Electrical Supply
 
115 V / 60Hz / 1 Ø
 
Full Load Amps @ 115 V
 
7.1
7.1
10.6
10.6
10.6
11.6
11.6
11.6
                   
Air Volume
[CFM]
2245
2245
3716
3716
3716
4663
4663
4663
Recommended Maximum Mounting Height
[ft]
20
20
25
25
25
30
30
30
Number of Axial Fans
 
1
1
1
1
1
2
2
2
Axial Fan Diameter
[in]
16
16
19.7
19.7
19.7
16
16
16
                   
Horsepower
 
.2
.2
.3
.3
.3
.4
.4
.4
Fan Motor Amps @ 115 V
 
4.3
4.3
4.7
4.7
4.7
8.6
8.6
8.6
Fan Motor RPM
 
1200
1200
1085
1085
1100
1155
1155
1155
Fan Motor Type
 
PSC
Flue Size
[in]
4
Combustion Air Size
[in]
4
4
4
4
4
5
5
5
Weight
[lb]
205
225
255
265
270
355
375
375




Installation Code and Annual Inspections:
All installations and service of RAPID™ equipment must be performed by a contractor qualified in the installation and service of equipment sold and supplied by Rapid Engineering and conform to all requirements set forth in the Rapid Engineering manuals and all applicable governmental authorities pertaining to the installation, service and operation of the equipment. To help facilitate optimum performance and safety, Rapid Engineering recommends that a qualified contractor annually inspect your RAPID™ equipment and perform service where necessary, using only replacement parts sold and supplied by Rapid Engineering.

Further Information:
Applications, engineering and detailed guidance on systems design, installation and product performance is available through RAPID™ representatives. Please contact us for any further information you may require, including the Installation, Operation and Service Manual.

This product is not for residential use.

This document is intended to assist licensed professionals in the exercise of their professional judgement.

Direct-Fired Air Handling UnitsAir TurnoverLow Intensity Infrared HeatersAxial Fan Unit HeaterIndirect-Fired Air HandlerGas Fired Warm Air or Forced AirMake-Up AirFixed RecirculationAir ManagementHeatingCoolingBuilding PressurizationAir CirculationEvaporation

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