Multi F Engineering Manual

FOUR-WAY VAHU INDOOR UNITS
Installation and Best Layout Practices
)LJXUHClearance Requirements.
)LJXUHGeneral and Duct Connection Dimensions.
)LJXUHLocation of Access Holes and Piping Connections.
Top
Front
Bottom
Side-right
Refrigerant
connections
Drain connections
for horizontal left
application
Drain
connections
for upflow
application
Air filter cover
Unit: inch
ODU
VAHU
Capacity
(kBtu/h)
Dimensions
Wiring
Knock out
Refrigerant
Pipe size
ABC
DEFGH
IJ
Height Width Depth Power
Comm-
unication
Liquid Gas
Multi
Zone
18
24
48-5/8 18 21-3/8 1-9/16 17-1/2 20 17 12-1/8 1-11/16 7/8
36
55-1/8 25 21-3/8 1-9/16 24-1/2 20 24 12-1/8 1-11/16 7/8 3/8 5/8
G
J
C
J
B
I
E
F
D
A
H
Drain connections
for horizontal right
application
1/4 1/2
Refrigerant
Connections
Pipe
Liquid Gas
3/8 5/8
3/8 5/8
More than 23-5/8
clearance from
access panels
for Service
0 (zero) 0 (zero)
Unit : inch
More than
13-25/32
More than
13-25/32
Refrigerant Piping
Connections
Drain Connections
for Horizontal Install
Filter Access
Drain Connections
for Vertical Install
Access Holes
for Conduit
Access Holes
for Conduit
VERTICAL-HORIZONTAL | 175
Vertical-Horizontal Air Handling Unit
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MULTI
F
MAX
MULTI
F