Installation Manual

24 Hydronic Air Handler Installaon and Operaon Manual
Read section “4. Installation Preparation”
before starting installation steps.
IMPORTANT
1. Place the air handler in the desired location
and configuration. Approved configurations:
Refer to the previous section (section “4.
Installation Preparation”) for more information
on location and configuration requirements.
1. Connect the supply air duct to the flange on
top of the blower section of the air handler.
Refer to section “4.5 Ductwork Requirements”
for complete ductwork installation
requirements.
• A return air duct system is recommended.
If the unit is installed in a confined space
or closet, a return connection must be
run, full size, to a location outside the
closet.
• The isolation connector (if used) must be
nonflammable.
IMPORTANT
RETURN
SUPPLY
Example Vertical Installation
Example Horizontal Installation
SUPPLY
RETURN
• Vertical: Upflow with bottom or side
(left or right side) return
• Horizontal: Upflow with bottom return
SUPPLY (Upflow)
RETURN
Air flows in through bottom or
side (left or right side)
Vertical (upflow with bottom or side return)
Air flows out through top
Horizontal (Upflow with bottom return)
RETURN
Air flows in
through
“bottom
duct return”
SUPPLY
Air flows
out
through
“top”