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Rinnai 14 

EHPA Heat Pump OIM

REGULATIONS AND OCCUPATION HEALTH AND SAFETY (OH&S)

WARNING

Installation and commissioning must be performed by authorised persons.
The heat pump must be installed in accordance with these instructions and all regulatory requirements 

which exist in your area including those in relation to manual lifting.
 Applicable publications and regulations may include:

• 

AS/NZS 3500 National Plumbing and Drainage

• 

AS/NZS 3000 Wiring Rules

• 

Building Codes of Australia (BCA)

• 

Local Occupational Health and Safety (OH&S) regulations

This appliance is not suitable for use as a domestic spa pool or swimming pool heater.
Electric Heat pumps are heavy and bulky items. Australian States and Territories have a Principal 

Occupational Health and Safety (OH&S) Act which contains requirements relating to the handling 

of large, bulky or awkward items. Persons installing heat pump systems must be aware of their 

responsibilities and be adequately trained and qualified, in accordance with local OH&S requirements..

LOCATION

The electric heat pump MUST BE installed externally.
The electric heat pump should be placed as close as practicable to the most frequently used hot water outlet point 

or points to minimize the delay time for hot water delivery. This will usually be the kitchen tap.  For installations 

where the distance between the heat pump and the outlets is considerable, a flow and return system can be used 

which minimize the waiting time for hot water delivery.

It is recommended that all components are installed at ground or floor level. The heat pump MUST BE installed in 

a vertically upright position.  All components MUST BE accessible without the use of a ladder or scaffold. The unit 

MUST NOT be installed in roof spaces.

WARNING

As the heat pump contains a flammable refrigerant, ensure the installation location complies with the 

requirements of AS/NZS 5601.

Ensure the pressure and temperature pressure relief (PTR) valve and any access covers have sufficient clearances 

and are accessible for service and removal. The information on the rating plates must also be readable.
The heat pump MUST BE installed free-standing on a level and stable base. The cylinder should be mounted on a 

concrete base at least 50mm thick or on well-seasoned, evenly spread hardwood slats with a thickness of at least 

25mm. Where property damage can occur as a result of water leakage, the storage cylinder MUST BE installed 

with a safe tray (overflow tray) and drain in accordance with AS 3500.4. Ensure the storage cylinder DOES NOT 

stand on wet surfaces.
The air inlet and outlet of the heat pump module MUST BE away from areas with strong wind and MUST BE be 

provided with sufficient clearances as per those shown in the section ‘’ on page 12

The heat pump must be connected to an independent AC 240 V, 50 Hz power supply. 

INSTALLATION 

Summary of Contents for Enviroflo EHPA250VM

Page 1: ...8 Lic W00169 SAI Global N10378 This system shall be installed commissioned and serviced by an authorised person in accordance with Manufacturer s Instructions Current AS NZS 3500 All applicable local...

Page 2: ...ice Call 9 Specifications 11 System Specifications 11 Dimensions 12 Clearances 13 Installation 14 Regulations and Occupation Health and Safety OH S 14 Location 14 Water Supply 15 Storage Temperature 1...

Page 3: ...d by an authorised person in order to avoid a hazard Take care not to touch the power connections or plugs with wet hands Care should be taken not to touch the pipe work as it may be HOT DO NOT place...

Page 4: ...licable regulations IMPORTANT IMPORTANT DO NOT TILT MORE THAN 45 FROM VERTICAL 45 The Rinnai Enviroflo Electric Heat Pump must be transported at an angle no greater that 45 from vertical As the compre...

Page 5: ...r before bathing or showering yourself Supervise children whenever they are in the bathroom Make sure that the hot water tap is turned off tightly CONSIDER Installing child proof tap covers or child r...

Page 6: ...The heat pump unit includes a circulation pump which draws water from the bottom of the storage tank and returns it to the tank at a higher temperature A temperature sensor in the tank is used to con...

Page 7: ...the easing gear is closed attendance by an authorised person must be arranged without delay The PTR valve is not serviceable EXCESSIVE DISCHARGE FROM SAFETY DEVICES Pressure Temperature Relief PTR Va...

Page 8: ...ed below in the section the section Draining and Filling on page 8 TURNING ON THE WATER HEATING SYSTEM Switch on the electric supply to the heat pump unit Water heating will now occur as required It m...

Page 9: ...blem If the valve dribbles continuously try easing the valve gear for a few seconds as described in the section Excessive Discharge from Safety Devices on page 7 This may dislodge any foreign matter a...

Page 10: ...S One or more hot taps opened at the same time More than one or two hot taps in use at the same time may cause a decrease in the hot water flow from the taps Is there more than one or two hot taps ope...

Page 11: ...actory Wired 1 0 KW Total Rated Input To be wired by installer 3 4 KW Maximum Energy Output Use to size PTR 4 29 kW Power Supply 240 V AC 50 Hz Rated Current 15 A Refrigerant Type Mass R290 300 g Refr...

Page 12: ...HPA Heat Pump OIM DIMENSIONS EHPA250VM EHPA315VM Cylinder height 1872 2165 Hot Outlet PTR 1248 1541 Cold water inlet 210 210 Cylinder diameter 611 611 Height Diameter PTR Hot Outlet PTR Cold Inlet SPE...

Page 13: ...13 EHPA Heat Pump OIM CLEARANCES Allow 700mm on the fan discharge side and 150 mm clearance on the fan suction side to allow for sufficient air flow through the fan 700 mm 150 mm 700 mm 150 mm SPECIFI...

Page 14: ...the distance between the heat pump and the outlets is considerable a flow and return system can be used which minimize the waiting time for hot water delivery It is recommended that all components are...

Page 15: ...ry and secondary schools and nursing homes or similar facilities for young aged sick or people with disabilities and 50 C for all other buildings To comply with these requirements a temperature limiti...

Page 16: ...ck into the compressor motor Tilting the heatpump beyond 45 from vertical will also place undue strain on compressor motor mounts and associated piping POSITIONING THE HEAT PUMP Arrive at site and con...

Page 17: ...passage through the valve The PTR valve must be installed on the connection marked hot water outlet near the top of the cylinder Leave the valve outlet pointing down Tighten the valve using the spanne...

Page 18: ...Union Connection Non return Valve Line Strainer Cold Water Inlet Isolating Valve Spindle Vertical Cold water expansion control valve Connect the pipe work supplying hot water to the premises to the ho...

Page 19: ...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...

Page 20: ...EARTH wire is securely fixed to the earth post provided on the heater case Inspect and ensure that all wiring links are secure prior to fixing the access cover and turning the POWER ON NEUTRAL EARTH C...

Page 21: ...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 dete...

Page 22: ...rated for the first time it runs through an initial heat up cycle allow time for the initial heat up cycle Depending on the ambient conditions this can take several hours Once its first heat up cycle...

Page 23: ...Discharge Sensor FAILURE Five Times Compressor Discharge Sensor 110 C Six Times Low Pressure Switch Open Seven Times High Pressure Switch Open Eight Times Under Voltage 190 V AC Nine Times Over Volta...

Page 24: ...ocal call higher from mobile or public phones Hot Water Service Line Tel 1800 000 340 Australia Pty Ltd ABN 74 005 138 769 Internet www rinnai com au E mail enquiry rinnai com au Rinnai has a Service...

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