Filling The System; Finishing The Installation - Rinnai Enviroflo EHPA250VM Operation & Installation Manual

FILLING THE SYSTEM

Open hot water tap at sink.
Open the stop cock in the cold water main supply line.
Allow the system to fill and the air to bleed through the tap.
Turn off the hot tap at the sink when water flows freely without any air bubbles or air bursts.
Bleed any remaining air from the PTR valve.
Automatic air bleed valve is fitted on top of the circulation pump of the heat pump module:
Turn on power to the heat pump unit.
Wait 30 s for the circulation pump to turn on
Any remaining air will be bled from the automatic air vent.
If leaks are detected turn off power to the heat pump, repair any leaks and repeat the filling process to remove any
air.
If no leaks are detected water heating can commence. The heat pump will start up after the 2 minute protection
time.

FINISHING THE INSTALLATION

After testing is completed explain to the householder the functions and operation of heat pump water heater
components.
Explain to the householder the need to drain the heat pump if freezing conditions are likely and power is likely to
be shut off.
Also explain to the householder the importance of carrying out maintenance in accordance with this manual.
Leave this manual with the householder.
Rinnai
Automatic
Air Bleed
Valve
21
INSTALLATION
EHPA Heat Pump OIM