Multi-Position Orientation - Rinnai 37AHA Series Training Manual

Multi-Position Orientation

UP - FLOW and DOWN - FLOW INSTALLATIONS
The hydronic air handler is ready to be installed in an up-flow or down-flow position without
modifications.
The unit MUST be supported on the bottom ONLY and set on a field supplied supporting
frame or plenum and secured together.
UP - FLOW DOWN - FLOW
The HAH can be installed in a closet on a support stand, or mounted from the closet wall
using the closet door as the return air plenum. Air return opening can be supplied through the
closet door, side (thru a wall) or a combination of both. Refer to ACCA, Manual D, or
SMACNA for specific guidelines.
14
Rinnai Corporation Hydronic Air Handler 101 Training Manual