Rinnai HOTFLO EHFA 250 Installation Manual Download Page 1

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This Appliance complies

with cusrrent AS 3498

SAI GLOBAL LIC. WMKA00169

This appliance must be installed in accordance with:

• Manufacturer’s Installation Instructions

• Current AS/NZS 3000 Wiring Rules

• Municipal Building Codes

• Current AS/NZS 3500.4 Plumbing and Drainage - Heated Water Services

• 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

accordance with the manufacturers instructions.

Installation Manual

HOTFLO (EHFA/EHFD) Series

Mains Pressure Vitreous Enamel

Electric Storage Water Heater

Summary of Contents for HOTFLO EHFA 250

Page 1: ...ZS 3500 4 Plumbing and Drainage Heated Water Services All local regulatory requirements including all local OH S requirements This appliance must be installed maintained and removed by a Qualified Per...

Page 2: ...Rinnai 2 EHFA EHFD HW IM...

Page 3: ...cifications 11 Installation Methods 12 Hot Water Plumbing System Example No TLD 12 Hot Water Plumbing System Example With TLD 12 Hot Water Plumbing system Example Flow Return Pipe Work No TLD 13 Hot W...

Page 4: ...Rinnai 4 EHFA EHFD HW IM This page is intentionally blank...

Page 5: ...ons For continued safety of this appliance it must be installed operated and maintained in accordance with the manufacturer s instructions This appliance is heavy use 2 people or mechanical lifting de...

Page 6: ...ING The thermostat setting must only be adjusted by an Electrician or other suitably qualified trades person The access cover to the element and thermostat must only be removed by an Electrician or ot...

Page 7: ...son It is normal for the PTR valve to release a small quantity of water through the drain pipe during heating If the valve dribbles or leaks continuously try easing the valve gear for a few seconds Th...

Page 8: ...et period and stored The Off Peak supply is usually cheaper Electricity supply types and tariffs vary according to the local electricity authority Twin Element Model A vitreous enamel lined steel cyli...

Page 9: ...innai to discuss adjusting the thermostat No water from the hot tap Restriction in the hot tap or failure of the cold water supply to the heater Check for water flow at the other hot taps and that the...

Page 10: ...mm use supplied PTR Valve 8 Anode cap 9 Right hand duplicate hot water outlet Connection RP 3 4 20mm use a union connection and insulate hot water pipe 10 Right hand duplicate cold water inlet 11 Wate...

Page 11: ...s 680 680 680 Recommended PLV pressure rating 500 500 500 ECV Not Fitted kPa Fit PLV if mains pressure exceeds 800 800 800 Recommended PLV pressure rating 500 500 500 Rated Capacity Hot Water Litres l...

Page 12: ...Isolating Valve Isolating Valve PLV ECV OR WATER HEATER Non return Valve COLD SUPPLY Non return Valve Non return Valve WATER HEATER Temperature Limiting Device TLD Non return Valve PTR VALVE Supplied...

Page 13: ...RETURN PIPE WORK WITH TLD COLD SUPPLY Isolating Valve ECV TO DRAIN Non return Valve PLV KITCHEN LAUNDRY NON TEMPERED SUPPLY BATHROOM ENSUITE TO DRAIN PTR VALVE Supplied WATER HEATER Not Supplied Non...

Page 14: ...cur as a result of water leakage the water heater MUST BE installed with a safe tray overflow tray and drain Construction installation and draining of the safe tray MUST comply with local regulatory r...

Page 15: ...ations WARNING Valves with pressure ratings other than specified MUST NOT be used An isolation valve and non return valve MUST BE fitted in the cold water supply to the water heater so the water heate...

Page 16: ...alve outlet in accordance with the section Relief Valve Drain Lines on the bottom of page 16 The valve body MUST BE insulated in accordance with local regulatory requirements and AS NZS 3500 4 to opti...

Page 17: ...e local electricity supplier The Off Peak overnight is usually the most economical for the customer Electrical Connections WARNING The water heater MUST BE filled with water prior to connection to the...

Page 18: ...e access cover to the element and thermostat The access cover to the element and thermostat MUST ONLY BE removed by an Electrician or other suitably qualified trades person The thermostat setting MUST...

Page 19: ...orced out of the taps 3 Close each tap when water runs freely without air bubbles 4 Check all plumbing connections and pipe work for water leaks 5 Connect the water heater to the electricity supply an...

Page 20: ...our National Help Line Rinnai recommends that this appliance be serviced every year Head Office 100 Atlantic Drive Keysborough VIC 3173 P O Box 460 Braeside Victoria 3195 Product Sales and Service Na...

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