Lennox OF23Q5-140 - Unit Specifications and Parts

Page 2
OF23 Unit Dimensions − Inches (mm)
FLUE CONNECTION
OF23Q3/4-105/120R,
OF23Q5-140/154R
OF23Q5−175/210R
1
(25)
1 (25)
RETURN
AIR
OPENING
SUPPLY
AIR
OPENING
OIL PIPING INLET
(Both Sides)
ELECTRICAL INLETS
(Right Side Only)
TOP VIEW
SIDE VIEW FRONT VIEW
A
E
C
E
3/4
(19)
FLUE CONNECTION
OF23Q3/4-105/140 &
OF23Q5-140/154
(On Heat Exchanger)
AIR FLOW
AIR FLOW
3/4
(19)
3/4
(19)
3/4
(19)
1-1/2
(38)
3-1/4
(83)
6-1/2
(165)
B
C
FG
SIDE
FLUE OUTLET
CENTERING HOLE
(Field Fabricate
Either Side)
OPT. OUTDOOR
COMBUSTION
AIR INLET
CENTERING HOLE
(Field Fabricate
Right Side only)
TOP FLUE
OUTLET
Model No
A B C D E x F (Supply) E x G (Return)
Model No.
in. mm in. mm in. mm in. mm in. mm in. mm
OF23Q3/4-105/120 19-1/2 4959 37 940 52−1/2 1334 27 686 18 x 21 457 x 533 18 x 16 457 x 406
OF23Q3/4-105/120R 19-1/2 495 37 940 52−1/2 1334 27 686 18 x 21 457 x 533 18 x 16 457 x 406
OF23Q5-140/154 22-1/2 572 37 940 52−1/2 1334 27 686 21 x 21 533 x 533 21 x 16 533 x 406
OF23Q5-140/154R 22-1/2 572 37 940 52−1/2 1334 27 686 21 x 21 533 x 533 21 x 16 533 x 406
OF23Q5-175/210R 24 610 39−1/4 997 55 1397 29 737 22−1/2 x 23−1/8 572 x 587 22−1/2 x 16−1/2 572 x 419
OF23 Start−Up & Performance Check List
Filter Clean & Secure?
Supply Voltage
Electrical Connections Tight?
Job Name
Job Location
Installer
Unit Model No.
Oil Pump Pressure [recommended minimum 140 psi]
Job No.
City
City
Serial No.
Date
State
Serviceman
Draft Reading (recommended .03−.04 inches w.c.)
Flue Connections Tight?
HEATING SECTION
THERMOSTAT
Calibrated? Heat Anticipator Properly Set? Level?
Blower Motor Amps
Blower Motor H.P.
Blower Motor Lubrication O.K.?
Piping Connections Tight?
Vent Clear?
State
Temperature RiseFan Control Cutout
Fan Control Setting (maximum 130_ F)
Burner Model No.
Serial Number
All Valves Open?
PROPER DRAFT
% CO
2
(recommended 12%)
(55_C)