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Sterling RF-30 User Manual

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Table 1 - Performance and Dimensional Data - Tubular 30 thru 90 Propeller Unit Heater
Figure 2 - Dimensional Drawing – Tubular 30 thru 90 Propeller Unit Heater
Unit Size
30
45
60
75
90
PERFORMANCE DATA†
Input - BTU/Hr.
30,000
45,000
60,000
75,000
90,000
                (kW)
(8.8)
(13.2)
(17.6)
(22.0)
(26.4)
Output - BTU/Hr.
24,300
36,450
48,600
60,750
72,900
                   (kW)
(7.1)
(10.7)
(14.2)
(17.8)
(21.4)
Thermal Efficiency (%)
81
81
81
81
81
Free Air Delivery - CFM
500
750
1,000
1,250
1,500
                       (cu. m/s)
(0.236)
(0.355)
(0.473)
(0.591)
(0.710)
Air Temperature Rise - Deg. F
45
45
45
45
45
                                   (Deg. C)
(25)
(25)
(25)
(25)
(25)
Full Load Amps at 120V
3.0
3.0
3.7
3.7
4.8
MOTOR DATA: Motor HP
1/20
1/20
1/20
1/20
1/20
Motor  (kW)
(0.04)
(0.04)
(0.04)
(0.04)
(0.04)
Motor Type
SP
SP
SP
SP
SP
R.P.M.
1650
1650
1050
1050
1050
Motor Amps @ 115V
1.9
1.9
2.6
2.6
2.6
DIMENSIONAL DATA  - inches (mm)
“A” Jacket Height
12
12
17-3/4
17-3/4
17-3/4
(305)
(305)
(451)
(451)
(451)
“B” Overall Height
13
13
18-3/4
18-3/4
18-3/4
(330)
(330)
(476)
(476)
(476)
“C” Overall Depth
25-1/2
25-1/2
26-3/4
26-3/4
26-3/4
(648)
(648)
(679)
(679)
(679)
“Center Line” Height of Flue*
7-1/4
7-1/4
10-1/2
10-1/2
10-1/2
(184)
(184)
(267)
(267)
(267)
“Center Line” Electric Connection
10-1/4
10-1/4
16
16
16
(260)
(260)
(406)
(406)
(406)
“F” Discharge Opening Height
10-1/2
10-1/2
16-1/4
16-1/4
16-1/4
(267)
(267)
(413)
(413)
(413)
“G” Fan Diameter-in
10
10
16
16
16
Unit Weight - lbs.
62
68
87
93
95
                    (kgs)
(28)
(31)
(39)
(42)
(43)
Shipping Weight - lbs.
72
78
102
108
110
                            (kgs)
(33)
(35)
(46)
(49)
(50)
DIMENSIONS .XXX STANDARD UNITS
DIMENSIONS IN PARENTHESIS (XXX) MILLIMETERS
* For all installations, the flue collar is included with the unit and should be field installed per the instructions included with the unit.
† Ratings shown are for unit installations at elevations between 0 and 2,000 ft (0 to 610m). For unit installations in U.S.A. above 2,000 ft. (610m), the unit input must be derated 4% for each 1,000 ft. (305m) above sea
level; refer to local codes, or in absence of local codes, refer to the latest edition of the National Fuel Gas Code, ANSI Standard Z223.1 (N.F.P.A. No. 54), (also refer to Table 6).
For installations in Canada, any reference to deration at altitudes in excess of 2,000 ft. (610m) are to be ignored. At altitudes of 2,000 ft. to 4,500 ft. (610 to 1372m), the unit must be derated to 90% of the normal
altitude rating, and be so marked in accordance with the ETL certification.