Installation Manual HOTFLO (EHFA/EHFD) Series Mains Pressure Vitreous Enamel Electric Storage Water Heater This appliance must be installed in accordance with: • Manufacturer’s Installation Instructions • Municipal Building Codes • Current AS/NZS 3000 Wiring Rules • 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.
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TABLE OF CONTENTS Warnings & Safety 5 Regulatory ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 5 Notice To Victorian Consumers ��������������������������������������������������������������������������������������������������������������������������������������������� 5 Safety ����������������������������������������������������������������������������������������������������
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WARNINGS & SAFETY READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. IMPORTANT Always comply with the following precautions to avoid dangerous situations and to ensure optimum performance. Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.
WARNINGS & SAFETY SAFETY WARNING This appliance is NOT intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they DO NOT play with the appliance.
WARNINGS & SAFETY SAFETY DEVICES For safe operation this water heater is fitted with a combination Pressure & Temperature Relief Valve, a thermostat and an over-temperature cut out for each heating element. DO NOT tamper with or remove safety devices. WARNING DO NOT operate this water heater unless all safety devices are fitted and in working order. The operation of the thermal cut out indicates a possibly dangerous situation.
IMPORTANT INFORMATION ANODE The water heater is fitted with a sacrificial anode to extend it’s life. It will slowly dissipate whilst protecting the cylinder. The life of the water heater may be extended by arranging for an authorised person to inspect the anode and replace it if required. It is recommended that the anode be inspected at least every 5 years. The factory fitted Rinnai anode is Magnesium based.
CARE & MAINTENANCE SAVE A SERVICE CALL Check the items below before requesting a service. Service and parts charges may be incurred where it is found that there is no fault with the water heater and the issue is related to the plumbing installation or is due to the failure of water or electric supplies. Insufficient or no hot water Is the electricity supply connected? Check that the isolating switch marked “HOT WATER” or “WATER HEATER” at the meter box is switched on.
SPECIFICATIONS APPLIANCE COMPONENTS 6 9 8 1b 7 5 4 1a 2 3 12 11 1. Data / Warning labels 2. Left hand cold water inlet Connection RP 3/4" (20mm) 3. Element / thermostat / electrical supply connection cover * 4. PTR valve drain pipe Copper only drain in accordance with AS/NZS 3500.4 5. Element / thermostat cover (Twin element models only) * 6. Left hand hot water outlet Connection RP 3/4" (20mm), use a union connection and insulate hot water pipe 7.
SPECIFICATIONS TABLE 1. DIMENSIONS & WEIGHT Models EHFD 160 EFHA 250 EHFA 315 A 1313 1484 1770 B 600 674 674 C 537 605 605 D 1107 1248 1541 E 186 210 210 F 110 135 135 G n/a 985 1225 Weight (kg) 51 71 91 B C P&TR OUTLETS AG D INLETS E F All dimensions are in mm unless otherwise stated TABLE 2.
INSTALLATION METHODS HOT WATER PLUMBING SYSTEM EXAMPLE - NO TLD NON TEMPERED SUPPLY KITCHEN LAUNDRY BATHROOM ENSUITE *PTR VALVE (Supplied) Isolating Valve TO DRAIN Non-return Valve *PLV *ECV COLD SUPPLY WATER HEATER TO DRAIN (Not Supplied) Valves with pressure ratings other than specified are unsuitable and MUST NOT be used. CAUTION *For ratings see "Table 2. Ratings & Other Specifications" on page 11.
INSTALLATION HOT WATER PLUMBING SYSTEM EXAMPLE / FLOW & RETURN PIPE WORK - NO TLD NON TEMPERED SUPPLY KITCHEN LAUNDRY Flow & Return Pump BATHROOM Non-return Valve Isolating Valve ENSUITE Isolating Valve TO DRAIN *PTR VALVE (Supplied) Non-return Valve Isolating Valve *PLV *ECV COLD SUPPLY WATER HEATER TO DRAIN (Not Supplied) Valves with pressure ratings other than specified are unsuitable and MUST NOT be used. CAUTION *For ratings see "Table 2. Ratings & Other Specifications" on page 11.
INSTALLATION This appliance MUST BE installed by a qualified person in accordance with: • Manufacturers installation instructions • Current AS/NZS 3000 Wiring Rules • Current AS/NZS 3500.4 Plumbing and Drainage - Heated Water Services • All local regulatory requirements This appliance is NOT suitable for use as a spa or swimming pool heater.
INSTALLATION THERMOSTAT SETTING The thermostat setting can be adjusted between 60°C and 70°C. It has been factory pre-set to 70°C. WARNING The thermostat settings MUST ONLY be adjusted by a qualified person. REDUCING THE RISK OF SCALDING This water heater can deliver water at temperatures which can cause scalding. Children, disabled and the elderly are at the highest risk or being scalded. Local regulatory requirements and the requirements of AS/NZS 3500.
INSTALLATION Pressure and Temperature Relief (PTR) Valve A combination PTR valve is supplied with the water heater. It is an important safety device and MUST BE fitted in all installations before the water heater is operated. DO NOT use the valve if the sensing probe has been bent or it is damaged in some other way. The PTR valve is to be screwed to the connection marked “PTR Valve” at the top of the water heater. The thread MUST BE sealed with an approved sealing tape.
INSTALLATION Isolate all sources of supply prior to servicing ELECTRICAL SUPPLY WARNING 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. Ensure electric wiring is installed properly. Improper installation may cause malfunction, fire, or electric shock. The unit must be earthed following local electrical codes.
INSTALLATION Wiring Diagrams SINGLE ELEMENT 3 TWIN ELEMENT 1 3 1 RESET RESET 4 4 5 2 5 2 TOP ELEMENT Earth Neutral - N 3 Active - A 1 RESET 4 5 2 BOTTOM ELEMENT Earth Neutral - N Off Peak - A Continuous - A Thermostat Setting The thermostat is adjustable from 60°C to 70°C. Turning the adjustment knob anticlockwise decreases the temperature setting and turning it clockwise increases the temperature setting. The water heater as delivered will have the thermostat preset to 70°C.
COMMISSIONING Commissioning activities MUST BE carried out by an authorised person. WARNING DO NOT switch on the electric power supply until the water heater is filled completely with water. TO FILL & TURN ‘ON’ THE WATER HEATER 1. Open all hot water taps in the building, including the shower. 2. Open the cold water isolation valve to water heater. Air will now be forced out of the taps. 3. Close each tap when water runs freely without air bubbles. 4.
CONTACTS Australia Pty. Ltd. Product Sales and Service - National Phone: 1300 555 545* Fax: 1300 555 655* Technical Helpline and Spare Parts National (Mon-Fri 8am - 5.30pm EST) Phone: 1300 555 545* Fax: 1300 300 141* ABN 74 005 138 769 Head Office 100 Atlantic Drive, Keysborough VIC 3173 *Cost of a local call higher from mobile or public phones. E-mail: enquiry@rinnai.com.au P.O. Box 460 Braeside, Victoria 3195 For further information visit: www.rinnai.com.
