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504719M 09/05
CB30M Upflow and Downflow Unit Dimensions − inches (mm)
OPTIONAL
ELECTRIC
HEAT
(FIELD−
INSTALLED)
AIR
FLOW
LIQUID
LINE
SUCTION
LINE
SUPPLY
AIR OPENING
RETURN AIR
FILTER
LOW VOLTAGE
INLETS (TOP &
RIGHT SIDE)
RETURN AIR
Top View
Front View
Side View
BLOWER
PIPING PLATE DETAIL
(For upflow and downflow positions)
A
B
C
11-1/16
(281)
D
F
E
LIQUID LINE
SUCTION LINE
CONDENSATE
DRAINS (2)
(HORIZONTAL)
COIL
3/4
(19)
3/4
(19)
5/8
(16)
5/8
(16)
1
(25)
5/8
(16)
1-3/4 (44)
2
(51)
1-1/8 (29)
4-3/8 (111)
2-3/4
(70)
5-3/8
(137)
3-1/2 (89)
OPTIONAL
ELECTRIC
HEAT
(FIELD−
INSTALLED)
AIR FLOW
LIQUID
LINE
SUCTION
LINE
RETURN
AIR
OPENING
SUPPLY
AIR
FILTER
SUPPLY AIR
Top View
Front View
Side View
BLOWER
A
B
C
11-1/16 (281)
F
D
E
COIL
5/8
(16)
5/8
(16)
5/8
(16)
5/8 (16)
5/8
(16)
LOW VOLTAGE
(RIGHT SIDE)
LINE VOLTAGE
(LEFT SIDE)
Downflow Position
(Kit number 83M57 (LB−909844A) required to convert
unit to downflow applications.)
1 (25)
Upflow Position
CONDENSATE
DRAINS (2)
(UPFLOW AND
DOWNFLOW)
FILTER
ACCESS
FILTER
ACCESS
H
G
H
G
LINE VOLTAGE
INLETS (TOP &
LEFT SIDE)
5/8
(16)
5/8 (16)
Model No.
CB30M-21/26
CB30M-31
CB30M-41
CB30M-46
CB30M-51 & CB30M-65
Dimension
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
A
45-1/4
1149
49-1/4
1251
51
1295
52-1/2
1334
58-1/2
1486
B
16-1/4
413
21-1/4
540
21-1/4
540
21-1/4
540
21-1/4
540
C
20-5/8
524
20-5/8
524
22-5/8
575
22-5/8
575
24-5/8
625
D
14-3/4
375
19-3/4
502
19-3/4
502
19-3/4
502
19-3/4
502
E
19
483
19
483
21
533
21
533
23
584
F
15
351
20
508
20
508
20
508
20
508
G
24-5/8
625
24-5/8
625
26-3/8
670
27-7/8
708
27-7/8
708
H
20-5/8
524
24-5/8
625
24-5/8
625
24-5/8
625
30-5/8
778