HVACopedia

Rinnai · Air handler · Cooling

Cooling call, two-stage thermostat

Canadian Hydronic Air Handler

What happens, in order

  1. First stage thermostat closes R to G, R to O and R to Y1
  2. Unit delivers low-stage cooling airflow
  3. Second stage thermostat also closes R to Y/Y2
  4. Unit delivers high-stage cooling airflow

Applies to: Rinnai Canadian hydronic air handler (heat pump and A/C versions)

Models

Canadian air handler

More Rinnai air handler sequences

Related

Rinnai error codes · Rinnai tips · Rinnai parts · All Rinnai sequences

Take it to the job

Sequences of operation, error codes and tips work offline in the HVACopedia app.

Open the app

Source: Rinnai Canadian Hydronic Air Handler Installation and Operation Manual (600000023), thermostat operation section. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.