Rinnai
24
Commercial Heat Pump OIM
CONNECT COLD / HOT WATER SUPPLY
Connect cold water supply, Pressure Limiting Valve (PLV) and or Expansion Control Valve (ECV).
Connect cold water supply to the storage tank (refer to Diagram below).
A stop cock, non return valve and line strainer
MUST
be fitted.
Connect the pipe work supplying hot water to the premises to the hot water outlet on the tank.
Connect the pipe work between the heat pump and the tank.
A temperature limiting device may be required as detailed in the section ‘Hot Water Delivery Temperature’.
It is recommended that all hot water lines are insulated with high temperature, UV resistant 13mm closed cell
insulation.
ELECTRICAL TESTS
DO NOT
turn on the power supply to the appliance until it has been filled with water and a satisfactory insulation
(Megger) test has been performed.
Conducting Insulation (Megger) Tests
When conducting an insulation test using a Megger on this appliance, observe the then the following:
WARNING
This appliance contains electronic components, when performing insulation tests (500 Volts)
this
MUST
ONLY
be conducted the across active terminal to earth and then across the neutral
terminal to earth.
Tests between the active to neutral terminals
MUST NOT
be performed as this
WILL
damage
the electronic components.
An insulation test result of above
1 MΩ
should be obtained for this water heater.
ELECTRICAL CONNECTIONS
WARNING
The power supply to the heat pump module
MUST NOT
be activated until the system is filled
with water.
The premises wiring to the heater
MUST
be capable of withstanding the appliance load. Refer to
specification table for load details.
All electrical connections and wiring
MUST
be installed, maintained and removed by authorised
persons in accordance with AS/NZS 3000, and all other relevant local regulations and municipal
building codes including OH&S requirements.
Disconnect all power prior to installation and commissioning.
Main Power
IMPORTANT
The heat pump water heater must be directly connected to a 415 V AC 50 Hz mains power supply.
The heat pump must be on its own circuit with an isolating switch installed at the switchboard. A
secondary isolating switch must be installed within reach of the water heater.
Connect all
ACTIVE
and
NEUTRAL
wires in accordance with the wiring diagram. Ensure the
incoming
EARTH
wire is securely fixed to the earth post.
D r a in
Union Connection
Non-return Valve
Line Strainer
Cold Water Inlet
Isolating Valve (Spindle Vertical)
Cold water expansion control valve
INSTALLATION
