Table of Contents
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Operation & Installation Manual
®
'HOTFLO
' (HFE Series)
Mains Pressure Vitreous Enamel
Electric Storage Water Heater
This appliance shall be installed in accordance with:
• Manufacturer's Installation Instructions
• Municipal Building Codes
• AS/NZS 3000 Wiring Rules
• AS/NZS 3500.4 Plumbing and Drainage
• Any other local relevant Statutory Regulation
• All local regulatory requirements, including all local OH&S requirements
This appliance must be installed, maintained and removed by a Qualified Person.
For continued safety of this appliance it must be installed and maintained in
AS3498 Lic WMKA 21244
accordance with the manufacturers instructions.
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Table of Contents
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Summary of Contents for Rinnai HOTFLO HFE25S18P
- Page 1 Operation & Installation Manual ® ‘HOTFLO ’ (HFE Series) Mains Pressure Vitreous Enamel Electric Storage Water Heater This appliance shall be installed in accordance with: • Manufacturer’s Installation Instructions • Municipal Building Codes • AS/NZS 3000 Wiring Rules • AS/NZS 3500.4 Plumbing and Drainage •...
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Page 3: Table Of Contents
Electrical Connections ��������������������������������������������������������������������������������������������������������������������������������������������������������� 19 Wiring Diagrams ������������������������������������������������������������������������������������������������������������������������������������������������������������������ 20 Thermostat Setting ������������������������������������������������������������������������������������������������������������������������������������������������������������� 20 Commissioning To fill & turn ‘ON’ the water heater �������������������������������������������������������������������������������������������������������������������������������������� 21 To turn ‘OFF’ the water heater �������������������������������������������������������������������������������������������������������������������������������������������� 21 Contacts Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... - Page 4 This page is intentionally blank Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM...
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Page 5: Warnings & Safety
Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death. YourRinnaiHotfloMainsPressureVitreousEnamelElectricStorageWaterHeaterhasbeen certified by relevant plumbing and electrical authorities and the details are shown on data plate. -
Page 6: Safety
Installing tempering valves or thermostatic mixing valves which reduce the hot water temperature delivered tothetaps.Yourlocalplumbingauthoritymayalreadyrequirethatthesebefitted.Contactyourinstaller orlocalplumbingauthorityifindoubt. Never…. Leave a toddler in the care of another child. They may not understand the need to have the water temperature set at a safe level. Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 7: Safety Devices
If the valve dribbles or leaks continuously, operate the easing gear for a few seconds� This may dislodge any foreign matter and stop leakage� If leakage does not stop Contact Rinnai to arrange inspection by a qualified person. -
Page 8: Important Information
It is recommended that the anode be inspected at least every 5 years. The factory fitted Rinnai anode is Magnesium based� This anode is suitable when the total dissolved solids (TDS) content in the water supply does not exceed 600 mg/L, which is the case in most areas� In areas where the total dissolved solids (TDS) content in the water supply exceeds 600 mg/L the Rinnai Aluminium based alloy is required�... -
Page 9: Care & Maintenance
Rinnai service network personnel are fully trained and equipped� If your Rinnai appliance requires servicing contact Rinnai as per the details on the back page of this manual� Rinnai recommends that this commercial appliance be inspected and serviced by a qualified person every 12 months. -
Page 10: Specifications
May be required to avoid property damage in accordance with AS/NZS 3500.4 RemovalandconnectionbyqualifiedpersonsONLY,inaccordancewithAS/NZS3000 ValveswithpressureratingsotherthanspecifiedareunsuitableandMUST NOTbeused. NOTE WATER HEATER - located closest to most frequently used outlet -Access for service in the installed position. Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... - Page 11 1245 1020 HFE160S 1530 1310 HFE200S 1825 1605 HFE250SSL 1475 1215 HFE315SSL 1762 1430 HFE400S 1820 1545 HFE160T 1530 1310 HFE250T 1475 1215 HFE315T 1762 1430 1193 HFE400T 1820 1545 1224 Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM...
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Page 12: Table 2. Ratings & Other Specifications
HF - Hotflo E - Electric 160 - T - Twin 18 - First two digits of Cylinder Rated heating heating element rating Capacity of element eg: 18 = 1800 Watts cylinder Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 13: InstallationMethods
If this is the case, a Pressure Limiting Valve (PLV) with the same pressure rating as the PLV for the hot water is required for the TLD as shown. Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 14: Hot Water Plumbing System Example With Flow & Return Pipe Work
ISOLATING VALVE ISOLATING VALVE ISOLATING VALVE NON RETURN VALVE COLD Supply PLV 500 kPa (Not Supplied with all models) ECV(Not Supplied) 700 kPa or 850 kPa ValveswithpressureratingsotherthanspecifiedareunsuitableandMUST NOT beused. Forratingssee"Table2.Ratings&OtherSpecifications"onpage12. CAUTION Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 15: Hot Water Plumbing System Example With Flow & Return Pipe Work & Tld
NON RETURN VALVE COLD Supply PLV 500 kPa (Not Supplied ECV (Not Supplied) with all models) 700 kPa or 850 kPa ValveswithpressureratingsotherthanspecifiedareunsuitableandMUST NOT beused. Forratingssee"Table2.Ratings&OtherSpecifications"onpage12. Thisschematicisanexampleonly,variationsmayalsobesuitable. CAUTION TemperedwaterfromaTLDCANNOTbere-circulated.TheTLDMUST BE positioned in adeadleg,branchingoffthecirculatedhotwaterflowandreturnpipe. Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 16: Installation
This appliance is NOTsuitable for use as a spa or swimming pool heater� LOCATION The Rinnai Hotflo (HFE Series) storage water heater range have an ingress protection rating of IPX4 making them suitable for internal or external installation� The water heater 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�... -
Page 17: Thermostat Setting
Rinnai recommend that an approved TLD is fitted into the hot water pipe work from the water heater to areas used primarily for personal hygiene such as bathrooms and ensuites to reduce the risk of scalding�... -
Page 18: Pressure And Temperature Relief (Ptr) Valve
In areas where water pipes are prone to freezing, drain lines MUSTBEinsulated and NOT exceed 300mm in length� In this case the drain line MUST discharge into a tundish through an air gap of between 75mm and 150 mm� Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 19: Electrical Supply
Inspect and ensure that all wiring links are secure prior to fixing the access cover and turning the POWER ON� To ensure the Over-temperature and Energy Cut-out is set, press the (red) 'reset' button on the Thermostat� Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 20: Wiring Diagrams
The thermostat is adjustable from 60°C to 75°C� Turning the adjustment knob anticlockwise decreases the temperature setting and turning it clockwise increases the temperature setting� Rinnai advice that the thermostat be set at 65°C, this temperature is sufficient for most users. -
Page 21: Commissioning
1� Isolate or turn 'OFF' the water heater at the electricity supply� 2� Close the cold water isolation valve at the inlet to the water heater� Rinnai HOTFLO (HFE Series) Electric Storage Water Heater OIM... -
Page 22: Contacts
Braeside, Victoria 3195 For further information visit: www.rinnai.com.au Rinnai has a Service and Spare Parts network with personnel who are fully trained and equipped to give the best service on your Rinnai appliance. If your appliance requires service, please call our National Help Line. Rinnai recommends that this appliance be serviced every year.