Installation Guide
16 Hydronic Air Handler Installaon and Operaon Manual
Universal Air Handler Rack Assembly Part #
Universal rack assembly that mounts to the Rinnai Tankless Water
Heater or Boiler for simple installation with the hydronic air handler.
Works with all Rinnai AH Series Hydronic Air Handler models.
Includes hardware for mounting the tankless water heater or boiler to
the air handler rack assembly, and hardware for assembling the rack.
AHRACK-1
Domestic Priority Switch Part #
Normally Closed (NC) switch that connects to the PC Board in the
Rinnai tankless water heater or boiler.
Allows the tankless water heater or boiler to give priority to domestic
hot water by shutting off the air handler when necessary. When used
with a hydronic air handler, the switch gives priority to domestic hot
water. When domestic hot water demand exceeds a certain point, the
air handler will turn off to ensure the demand is met.
REU-OPU3
Pipe Cover Enclosure Part #
Encloses the piping below the tankless water heater or boiler for aesthetic purposes.
• Pipe cover for HE+ Series (RL Non-Condensing) Tankless Water
Heater Models
PCD03-SM2
• Pipe cover for SENSEI™ SE+ Series (RU Condensing) Tankless
Water Heater Models and I-Series (Condensing) Combi Boiler
Models
PCD07-SM
• Pipe cover for HE Series (V Non-Condensing) Tankless Water
Heater Models
PCD03-EWV
Product images are for illustrative purposes only.
24V NC Brass Solenoid Valve (3/4” NPT ) Part #
Optional accessory for use in domestic hot water recirculation
applications. The solenoid valve installs in line with the air handler
pump and is wired to the 24V Valve terminal on the air handler control
board. 1.12A Max Current Draw.
607000018
Heat Pump (HP) Lockout Kit Part #
This relay prevents unnecessary cycles on the air handler when
coupled with an electric heat pump.
605000032