Page 2
SPECIFICATIONS O24
Model Number
O24-70
O24-105/120
O24-140/154
Input - Btuh (kW) low/high
70,000 (20.5)
105,000 / 120,000(30.8 / 35.2)
140,000 / 154,000(41.0 / 45.1)
Output - Btuh (kW) low/high
57,000 (16.7)
85,000 / 97,000 (24.9 / 28.4)
113,000 / 125,000 (33.1 / 36.6)
A.F.U.E.
82%
81%
82%
Nozzle Rating - gph (L/hr) and spray angle
.50 (1.9) - 80
°
hollow .65 (2.5) - 80
°
(-105 input) solid
.75 (2.8) - 80
°
(-120 input) solid
.85 (3.2) - 80
°
(-140 input) solid
1.00 (3.8) - 80
°
(-154 input) solid
Flue Size Diameter - in. (mm)
6 (152)
Temperature Rise -
F (
C)
55 - 85 (30 - 47)
55 - 85 (30 - 47)(-105)
60 - 90 (33 - 50)(-120)
50 - 80 (28 - 45)(-140)
60 - 90 (33 - 50)(-154)
Oil Burner pump
1 Stage
Oil Burner pump pressure - psig (Pa)
100 (690)
140 (965)
Oil Burner air inlet connection (dia.) - in. (mm)
4 (102)
Motor hp (W)
1/6 (124)
1/4 (187)
3/4 (560)
Motor pulley - in. (mm)
3-1/4 (83)
4 (102)
Blower
Blower wheel nominal diameter x width - in. (mm)
10 x 8 (254 x 203)
12 x 9 (305 x 229)
Blower
Data
Blower pulley - in. (mm)
7 (178)
Belt size - in. (mm)
40 (1016)
41 (1041)
cfm (L/s) at .20 in. wg. (50 Pa) external static
pressure
820 (390)
1170 (550)
1550 (730)
Number and size of filters - in. (mm)
(1) 16 x 25 x 1
(2) 16 x 25 x 1
Shipping weight - lbs. (kg) 1 package
225 (102)
275 (125)
Electrical characteristics
115 volts - 60 hertz - 1 phase
Optional Accessories (Must Be Ordered Extra)
Two Stage Oil Pump
65A44
Oil Filter - 10 micron, no mounting bracket
91P89
Oil Filter - 10 micron, with mounting bracket
53P92
Replacement cartridge for above - 10 micron, 45 gph (170 L/h)
53P93
Filter restriction indicator gauge
53P90
Annual Fuel Utilization Efficiency based on U.S. DOE test procedures and FTC labeling regulations. Isolated combustion system rating for nonweatherized furnaces.
Nozzle must be field provided for field conversion to higher heating input.
Cleanable frame type filters. Furnished with unit in Side Filter Adaptor Kit for field installation external to the cabinet.
Requires return air from both sides of cabinet.
