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Rinnai 21 EHPA_VMA Series 2 Heat Pump OIM
WIRING DIAGRAM
FILLING THE SYSTEM
Open hot water tap at sink.
Open the stop cock in the cold water main supply line. Allow the
system to ll and the air to bleed through the tap.
Turn off the hot tap at the sink when water ows freely without
any air bubbles or air bursts.
Bleed any remaining air from the PTR valve.
An automatic air bleed valve is tted on top of the circulation
pump of the heat pump module:
•
Turn on power to the heat pump unit and wait 30 seconds
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 lling 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.
Automatic Air
Bleed Valve
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.
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PROGRAMMING
SERIAL PORT (Wi-Fi)
AN
DIS
A
C
D
LINE
HEATER
PC
EEV
CONTROLLER
TANK TEMP SENSOR
DISCHARGE TEMP SENSOR
EVAP TEMP SENSOR
HIGH PRESSURE SWITCH
TERMINAL
BLOCK
EARTH
ELEMENT
THERMOSTAT
MOUNTING
BRACKET
THERMOSTAT
BLACK
BLACK
RED
RED
GREEN/YELLOW
COMPRESSOR
CAPACITOR
PUMP
FAN
FUSE
SOLENOID
LED DISPLAY
PANEL
S
R
C
INSTALLATION
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