Spec Sheet

Measurements: in. (mm)
17 (432)
14.38
(365)
18.5 (470)
39.25
(997)
20.5 (521)
21.38 (543)
• Model with External Circulation Pump Included:
CAH050CE
• Model without External Circulation Pump Included:
CAH050E
• Rinnai Tankless Water Heaters:
− SENSEI™ SE+ Series (RU Condensing
Models)
Tankless water heaters must have a
minimum input rate of 160,000 Btu/hr.
• Rinnai Boilers:
− I-Series (Condensing) Combi Models
The output of the boiler must exceed
the capacity of the air handler in use
(the boiler Btu/hr rating must be greater
than the air handler Btu/hr rating).
Works with the
Following Rinnai
Products:
Configurations
• Vertical: Upflow with bottom, back, or side
(left or right side) return
• Horizontal: Upflow with bottom, back, or
side (left or right side) return
Accessory
Domestic Priority Switch
(Part #: REU-OPU3)
24V Thermostat
Cable Knockout
Access Port
(available on left
or right side)
120V Power Supply
Knockout Access
Port (available on
left or right side)