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SPECIFICATIONS − O23
Model Number
O23Q270
O23Q3105/120
O23Q5140/154
InputBtuh (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.
83.8%
82.8% (105) / 82.5% (120)
82.5% (140) / 81.4% (154)
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 Diameterin. (mm)
6 (152)
6 (152)
6 (152)
Oil Burner Pump
1 Stage
1 Stage
1 Stage
Oil Burner Pump Pressure psig (Pa)
100 (690)
140 (965)
140 (965)
Blower wheel nominal
in.
10 x 6
10 x 8
12 x 9
Blower wheel nominal
diameter x width
mm
254 x 152
254 x 203
305 x 229
Blower Motor Output hp (W)
1/3 (249)
1/3 (249)
3/4 (560)
Nominal cooling that can be added
Tons
2 thru 2.5
2 thru 3.5
3 thru 5
Nominal cooling that can be added
kW
7.0 thru 8.8
7.0 thru 12.3
10.6 thru 17.6
**Number and size of filtersin. (mm)
(1) 16 x 25 x 1
(1) 16 x 25 x 1
(2) 16 x 25 x 1
Shipping weight lbs. (kg) 1 package
225 (102)
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
81P89
*Annual Fuel Utilization Efficiency based on U.S. DOE test procedures and FTC labeling regulations. Isolated combustion system rating for nonweatherized furnaces.
**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.
Nozzle must be field provided for field conversion to higher heating input.
SPECIFICATIONS − OHR23
Model Number
OHR23Q3105/120
OHR23Q5140/154
InputBtuh (kW) low/high
105,000 / 120,000(30.8 / 35.2)
140,000 / 154,000(41.0 / 45.1)
OutputBtuh (kW) low/high
85,000 / 97,000 (24.9 / 28.4)
113,000 / 125,000 (33.1 / 36.6)
*A.F.U.E. (low/high)
81.8% / 81.3%
81.5% / 81.7%
Nozzle RatingU.S. gph (L/hr)
and spray angle
.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 Diameterin. (mm)
6 (152)
6 (152)
Oil Burner Pump
1 Stage
1 Stage
Oil Burner Pump Pressure psig (Pa)
140 (965)
140 (965)
Blower wheel nominal diameter x width in. (mm)
10 x 10 (254 x 254)
12 x 9 (305 x 229)
Blower motor outputhp (W)
1/2 (373)
3/4 (560)
Nominal cooling that can be added
Tons
2 to 3
3 to 5
Nominal cooling that can be added
kW
7.0 to 10.6
10.6 to 17.6
Shipping weightlbs. (kg) 1 package
225 (102)
265 (120)
Electrical characteristics
115 volts 60 hertz 1 phase
Optional Accessories (Must Be Ordered Extra)
Two Stage Oil Pump
65A44
Filter Kit
Catalog no.
35K01
35K06
Filter Kit
No & size of filters
in (mm)
(2) 10 1/4 x 20 1/2 x 1 (260 x 521 x 25)
(2) 11 3/4 x 23 1/2 x 1 (298 x 597 x 25)
No. & size of filtersin. (mm)
(2) 101/4 x 201/2 x 1 (260 x 521 x 25)
(2) 113/4 x 231/2 x 1 (298 x 597 x 25)
Downflo Additive Base
35K07
35K08
Horizontal Venting Kit
62J01
Burner Cover
84H26
Vestibule Cover Kit (full front cover)
37K28
37K29
Oil Filter
81P89
*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.
