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Hotflo hot water heat pump operation & installation 11790-C 03-12

Turning the system off and on

Turning the water heating system off

If you plan to be away for only a few nights, we suggest you leave the water heating system switched on. If it is 

necessary to switch it off,  switch off the electric power supply to the heat pump unit.

Do not turn the power off to the heat pump unit if snow or frost conditions are expected as 

components in the system may be damaged by freezing. If power needs to be turned off, or power 

failure occurs and freezing conditions are expected, the water needs to be drained from the heat pump 

unit, this must be carried out by an authorised person. It is not necessary to drain the storage tank.

Turning the water heating system on

Switch on the electric supply to the heat pump unit. Water heating will now occur as required. It may take a 

number of hours before hot water is available.

WARNING

Summary of Contents for EHP32

Page 1: ...Hotflo hot water heat pump Operation and installation guide Model EHP32...

Page 2: ...mer for future reference Warning Improper installation adjustment alteration service or maintenance can cause property damage personal injury or loss of life For more information about buying living a...

Page 3: ...oubleshooting guide 10 Specification 11 Dimensions and clearances 12 Heat pump checklist 13 Connecting to a storage tank 14 Attaching the temperature sensor 15 Piping 16 Filling and commissioning 17 P...

Page 4: ...or certain water chemistries For further information refer to the warranty information at the back of this guide Geothermal hot spots The Rinnai Hotflo hot water heat pump is not warranted against cor...

Page 5: ...hild in less than half a second At 55 C it takes half a minute Always Test the water temperature with your elbow before placing your child in the bath and feel the water yourself before bathing or sho...

Page 6: ...taken not to touch the pipe work as it may be hot DO NOT Do not Place articles on or against this appliance Store chemicals or flammable materials near this appliance Operate with the panels or cover...

Page 7: ...ter heat pump is made up of two separate components a heat pump and a water storage tank The heat pump unit includes a circulation pump which draws water from the storage tank and returns it to the ta...

Page 8: ...to the heat pump unit if snow or frost conditions are expected as components in the system may be damaged by freezing If power needs to be turned off or power failure occurs and freezing conditions ar...

Page 9: ...conditions are expected it is not necessary to drain the storage tank Arrange for an authorised person to carry out this task Servicing Rinnai has a maintenance service and spare parts network with p...

Page 10: ...l flow rates for showers is around 8 10 litres per minute Conduct a simple experiment by placing a measured bucket under your shower for ten seconds and multiply by six to obtain the amount of water p...

Page 11: ...when power is cut then restored the unit will not start for three minutes this is to protect the compressor Ambient temperature operating range 7 to 45 C When the ambient temperature is below 2 C the...

Page 12: ...12 Hotflo hot water heat pump operation installation 11790 C 03 12 Dimensions and clearances 500 765 660 600 325 275 790 1500 300 0 0 3 0 0 2 Bleed Valves Heat Pump Unit Minimum Clearances...

Page 13: ...not covered by warranty F F Temperature sensor cable run between the heat pump and storage tank The supplied cable has a length of 9 5 m F F Maximum water pressure is 850 kPa F F If water drips from t...

Page 14: ...upply option 1 from heat pump hot supply option 2 from heat to heat pump dip tube tool pump As supplied Heat pump configuration 1 2 Connecting to other storage tanks Connections to storage tanks which...

Page 15: ...ply a small quantity of a suitable heat transfer compound such as Unick available from Dick Smith electronics along the back of the temperature probe and contact fixing 3 Place the temperature probe a...

Page 16: ...ttach the supplied water filter to the heat pump water inlet 2 Fit suitable isolating valves to the heat pump connections at the tank Costs associated with draining storage tanks to service the heat p...

Page 17: ...s voltage connections and take care to avoid them 7 Plug in the heat pump power supply The LED display on the PCB will display the current temperature reading of the temperature sensor After three min...

Page 18: ...ower point and on the main fuse switchboard of the house Handover to the customer After testing is completed explain to the householder the functions and operation of the heat pump water heater system...

Page 19: ...ump is ready to be refilled Draining the heat pump unit and tank 1 Turn off the power to the heat pump 2 Close the cold water mains supply stop cock 3 Ensure any isolating valves between the heat pump...

Page 20: ...Where the appliance has not been sited in accordance with the installation instructions or installed such that normal service access is difficult a service charge will apply If at the discretion of t...

Page 21: ...mg L or ppm Up to 200 mg L or ppm Up to 25 mg L or ppm 6 5 8 5 Up to 300 mg L or ppm Up to 10 mg L or ppm Up to 150 mg L or ppm Up to 1 mg L or ppm Between 1 0 0 8 Most metropolitan water supplies fal...

Page 22: ...22 Hotflo hot water heat pump operation installation 11790 C 03 12 Installer details Company name Installer name Address Phone Mobile Signed Date...

Page 23: ...tallation 11790 C 03 12 23 Please keep these details in a safe place for future reference ATTACH YOUR PROOF OF PURCHASE HERE RECORD YOUR DETAILS OF PURCHASE BELOW Retailer Retailer address Date of pur...

Page 24: ...Rinnai co nz Experience our innovation 0800 746 624 http www youtube com rinnainz...

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