Locating And Mounting - Rinnai 37AHA04508KA5 Installation, Operation And Maintenance Manual

Installation
LOCATING AND MOUNTING THE HYDRONIC AIR
HANDLER
General
The multi-position 37AHA Series Hydronic Air
Handlers are shipped in packaged configuration. This
means that the units may be installed without
assembly and/or modifications when configured for
bottom return air inlet application; however, some
modifications and assembly are necessary if units are
to be installed in an application that requires side
return air inlet arrangement. For instructions on
required modifications and assembly refer to Figures 3
and 4.
NOTE: For side return application, obtain Side Filter
Rack" and "Bottom Fill Plate from your area
authorized Rinnai® distributor.
SIDE FILTER
RACK ASSEMBLY
INSTALL RETURN BLANK OFF
P/N 603000015
PLATE (BOTTOM FILL PLATE)
AHA045: P/N 603000011
AHA060: P/N 603000012
AHA075: P/N 603000013
AHA090: P/N 603000014
Figure 3:
Modification of Unit to Accommodate
Side Filter Rack Installation
6
21 11/16"
Figure 4:
CUT SIDE RETURN OPENING
IN UNIT USING THE (4)
LOCATING KOCKOUTS
SHARED UNIT SCREW
USE TO LOCATE
FILTER ASSEMBLY
Rinnai Corporation Hydronic Air Handler Manual
17 15/16"
3/8"
USE EXI STING SCREW HOLE
TO LOCATE FILTER RACK
Side Filter Rack Installation
17 3/4"
1/8"
2 3/16"