Page 3
SPECIFICATIONS − OF23
Model Number
OF23Q3105/120
OF23Q3105/120R
OF23Q5140/154
OF23Q5140/154R
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)
82.4% / 81.5%
82.5% / 82.4% R Models
81.8% / 81.5%
82.0% / 81.8% R Models
Nozzle Ratinggph (L/hr) and spray angle
.65 (2.5) 80
°
(105 input)
.75 (2.8) 80
°
(120 input)
.85 (3.2) 80
°
(140 input)
1.00 (3.8) 80
°
(154 input)
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)
Optional 2 Stage Fuel Pump
65A44
Blower wheel nominal
in.
10 x 8
12 x 9
Blower wheel nominal
diameter x width
mm
254 x 203
305 x 229
Blower Motor Outputhp (W)
1/3 (249)
3/4 (560)
Nominal cooling that can be addedTons (kW)
2 thru 3 (7.0 thru 10.6)
3 thru 5 (10.6 thru 17.6)
Number and size of filters
in.
(1) 18 x 19 x 1
(1) 19 x 21 x 1
Number and size of filters
mm
(1) 457 x 483 x 25
(1) 483 x 533 x 25
Shipping weightlbs. (kg) 1 package
255 (116)
290 (132)
Electrical Characteristics
115 60 hertz 1 phase
Optional Accessories (Must Be Ordered Extra)
Two Stage Oil Pump
65A44
Oil Filter
91P89
*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.
BLOWER PERFORMANCE DATA − O23
O23Q270 BLOWER PERFORMANCE
External Static
Air Volume at Various Blower Speeds
External Static
Pressure
High
Medium
Low
in.w.g.
Pa
cfm
L/s
cfm
L/s
cfm
L/s
.20
50
1260
595
870
410
520
245
.30
75
1205
570
825
390
500
235
.40
100
1135
535
780
370
480
225
.50
125
1050
495
720
340
450
210
.60
150
960
455
660
310
410
195
NOTE All air data is measured external to the unit with the air filter in place.
O23Q3105/120 BLOWER PERFORMANCE
External Static
Air Volume at Various Blower Speeds
External Static
Pressure
High
Medium
Low
in. w.g.
Pa
cfm
L/s
cfm
L/s
cfm
L/s
.20.
50
1350
635
1215
575
1080
510
.30
75
1280
605
1180
555
1060
500
.40
100
1210
570
1140
540
1040
490
.50
125
1180
444
1085
510
1000
470
.60
150
1100
520
1025
485
950
450
NOTE All air data is measured external to the unit with the air filter in place.
O23Q5140/154 BLOWER PERFORMANCE
External Static
Air Volume at Various Blower Speeds
External Static
Pressure
High
Medium
Low
in. w.g.
Pa
cfm
L/s
cfm
L/s
cfm
L/s
.20
50
1950
920
1620
765
1250
590
.30
75
1900
895
1590
750
1230
580
.40
100
1880
885
1560
735
1210
570
.50
125
1850
875
1540
725
1190
560
.60
150
1800
850
1490
705
1155
545
NOTE All air data is measured external to the unit with the air filter in place.
