Lennox CB19-51 User Manual

F
OPTIONAL
ELECTRIC HEAT
(Field Installed)
1-1/16 (27)
1-1/16
(27)
SUPPLY
AIR
OPENING
E
D
B
C
A
1-1/16
(27)
1-1/2
(38)
4-1/4 (108)
2-1/2 (64)
3 (76)
BLOWER
RETURN AIR
OPENING
(Either Side
or Bottom)
AIR FLOW
K
J
G
M
BLOWER
Return Air
Return Air
LIQUID
LINE
SUCTION
LINE
CONDENSATE
DRAINS (2)
FILTER
RAILS (2)
(Filter Not
Furnished)
ELECTRICAL INLETS
(Both Sides)
N
5/8
(16)
H
1-1/2
(38)
3/4
(19)
P
1-1/16
(27)
1-1/16
(27)
TOP VIEW
FRONT VIEW SIDE VIEW
L
A
BLOWER
3/4
(19)
F
G
C B
ED
M
3
(76)
J
FILTER RAILS (2)
(Filter Not Furnished)
AIR
FLOW
Supply Air
Supply Air
ELECTRICAL
INLETS
(Both Sides)
CONDENSATE
DRAINS (2)
LIQUID
LINE
SUCTION
LINE
RETURN
AIR
OPENING
5/8
(16)
1-1/16
(27)
L
H
K
1-1/16
(27)
1-1/2 (38)
TOP VIEW
1-1/2 (38)
FRONT VIEWSIDE VIEW
1-1/16
(27)
BLOWER
OPTIONAL
ELECTRIC HEAT
(Field Installed)
NOTE — When unit with optional electric heat is installed on a combustible floor,
an additive base is required. Base is optional and must be ordered extra.
When using additive base make opening in floor 2-3/8 inches (60mm)
larger (side to side) and 2-1/2 inches (64mm) larger (front to rear) than
unit supply air opening.
DIMENSIONS — inches (mm)
CB19 UP-FLOW POSITION
Model
N
CB19-21 & -26 CB19-31 & -41 CB19-51 & -65
No.
inch mm inch mm inch mm
A 48 1219 51 1295 60 1524
B 18-1/4 464 21-1/2 546 23-1/4 591
C 23-1/4 591 23-1/4 591 25-1/4 641
D 18 457 18 457 20 508
E 15-7/8 403 19-1/8 486 20-7/8 530
F 21-7/16 545 21-7/16 545 23-7/16 595
G 15 381 18-1/4 464 20 508
H 9-1/8 232 10-3/4 273 11-5/8 295
J 7-7/16 189 10-5/16 262 11-11/16 297
K 5-1/4 133 5-1/4 133 10 254
L 7-9/16 192 9-3/16 233 10-1/16 256
M 5-5/8 143 5-3/16 132 7-11/16 195
N 18-1/4 464 18-1/4 464 20-1/4 514
P 14-1/4 362 18-1/4 464 25-1/4 641
CB19 DOWN-FLOW POSITION
Model
CB19-21 & -26 CB19-31 & -41 CB19-51 & -65
No.
inch mm inch mm inch mm
A 48 1219 51 1295 60 1524
B 18-1/4 464 21-1/2 546 23-1/4 591
C 23-1/4 591 23-1/4 591 25-1/4 641
D 18 457 18 457 20 508
E 15-7/8 403 19-1/8 486 20-7/8 530
F 21-7/16 545 21-7/16 545 23-7/16 595
G 15 381 18-1/4 464 20 508
H 9-1/8 232 10-3/4 273 11-5/8 295
J 8-15/16 227 12-3/4 324 11-7/18 302
K 5-1/4 133 5-1/4 133 10 254
L 7-9/16 192 9-3/16 233 10-1/16 256
M 9-3/16 233 22 559 25-7/8 657
—10—

Lennox CB19-51 Specifications

General

Brand	Lennox
Model	CB19-51
Category	Air Handlers
Language	English