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This water heater must be installed and serviced by a qualified person. 

Please leave this guide with the householder. 

 

 

 

Owner’s Guide 

and 

Installation Instructions

 

 
 

 

 
 

Domestic Mains Pressure  

Electric Storage Water Heater 

 

EM50 and E80 to E400 Series 

 

Summary of Contents for 400 TEN Series

Page 1: ...st be installed and serviced by a qualified person Please leave this guide with the householder Owner s Guide and Installation Instructions Domestic Mains Pressure Electric Storage Water Heater EM50 and E80 to E400 Series ...

Page 2: ...ide the cover of the water heater as it may interfere with the safe operation of the water heater or ignite when the water heater is turned on Patents This water heater may be protected by one or more patents or registered designs in the name of Aquamax Australia Pty Ltd Trademarks Registered trademark of Aquamax Australia Pty Ltd TM Trademark of Aquamax Australia Pty Ltd ...

Page 3: ...tment 6 Other Important Information 7 Periodic Maintenance 8 Water Chemistry 11 Troubleshooting 14 INSTALLATION 16 Installation Overview 16 Water Supplies 18 Plumbing Plumbing Diagrams 18 Plumbing Connections 18 Two Temperature Zones Using a Temperature Limiting Device 23 Circulated Hot Water Flow Return Systems 24 Electrical Electrical Connections 25 Thermostat Adjustment 26 Commissioning 27 Drai...

Page 4: ...controls fitted to the water heater provide safe and efficient operation Model Selection Chart 50 Litre 80 Litre 125 Litre 160 Litre 250 Litre 315 Litre 400 Litre EM50S36 E80S18 E125S18 E160S18 E250S24 E315S36 E400S36 EM50S18L E80S24 E125S24 E160S24 E250S36 E315S48 E400S48 EM50S24L E80S36 E125S36 E160S36 E250S48 E315T36 E400T36 E125S48 E160S48 E250T36 E315T48 E400T48 E160T24 E250T48 E160T36 E160T4...

Page 5: ...units each with its own thermostat One heating unit is at the base of the water heater and the other near the top The lower thermostat is adjustable between 60 75 C factory setting 70 C whilst the top thermostat is fixed at 60 C Bottom heating unit main heating unit During normal operation this heating unit supplies all the hot water Top heating unit booster This heating unit only operates during ...

Page 6: ...r single element models High Hot Water Temperature Increases the Risk of Scald Injury Warning This water heater can deliver water at temperatures which can cause scalding Always check the water temperature before use such as when entering a shower or filling a bath or basin to ensure it is suitable for the application and will not cause a scald injury Aquamax recommends monthly temperature checks ...

Page 7: ...ter Warning The water heater can only be switched on upon completion of the installation by a qualified person To turn on the water heater 1 Fully open the cold water isolation valve at the cold water inlet to the water heater 2 Switch on the circuit breaker or isolator marked Hot Water or Water Heater at the switchboard Shut Down Procedure If it is necessary to turn off the water heater 1 Switch ...

Page 8: ...ed to an off peak system hot water may not be available until the following morning Safety This water heater is supplied with a thermostat an over temperature and energy cut out and a combination pressure temperature relief valve These devices must not be tampered with or removed The water heater must not be operated unless each of these devices are fitted and are in working order The Aquamax warr...

Page 9: ...d hot water supply is necessary for your application or business you should ensure that you have back up redundancy within the hot water system design This should ensure the continuity of hot water supply in the event that this water heater was to become inoperable for any reason We recommend you seek advice from your plumber or specifier about your needs and building back up redundancy into your ...

Page 10: ...red 5 Visually check water heater for any potential problems 6 Inspect all plumbing and electrical connections Note The water heater will need to be drained during this service and will take some time to reheat the water after servicing has been completed Depending upon the power supply connection hot water may not be available until the next day Pressure Temperature Relief Valve PTR valve The PTR...

Page 11: ...Plumbing Arrangement diagram on page 19 The ECV may discharge a small quantity of water from its drain line during the heating period instead of the PTR valve on the water heater Operate the easing lever on the expansion control valve once every six months It is very important that you raise and lower the lever gently The expansion control valve should be checked for performance or replaced at int...

Page 12: ...rom the supplier or it should be tested to ensure the water supply meets the requirements given in these guidelines for the Aquamax warranty to apply Water Chemistry This water heater must be installed in accordance with this advice to be covered by the Aquamax warranty This water heater is manufactured to suit the water conditions of most public reticulated water supplies However there are some k...

Page 13: ... aluminium alloy anode cap colour code Blue available from your Aquamax supplier Anode replacement must be carried out by an Aquamax accredited service agent Warning If the water supply has a TDS greater than 600 mg Litre and the anode has not been changed to a blue anode there is the possibility the anode may become overactive and hydrogen gas could accumulate in the top of the water heater durin...

Page 14: ...g blockage of the pressure and temperature relief valve Danger Failure to install an expansion control valve where scaling water conditions occur may result in the water heater storage cylinder failing To avoid damage to the storage cylinder and water heater components Aquamax strongly recommend scaling water be treated before entering the water heater by fitting appropriate water filters conditio...

Page 15: ...ician check to ensure this is the case Are you using more hot water than you think Is one outlet especially the shower using more hot water than you think Very often the amount of hot water used is not realised particularly when showering Carefully review the family s hot water usage Have your plumber fit a flow control valve to each shower outlet to reduce water usage Pressure temperature relief ...

Page 16: ... of the water heater Ask your installing plumber to fit a pressure limiting valve Warning Never use reconditioned relief valves and never replace the relief valve with one of a higher pressure rating Heavy flows of hot water until the water heater is cold then stops until water reheats The water heater must be switched off at the isolating switch or switchboard Phone Aquamax Service or their neare...

Page 17: ...pply Domestic Continuous Contact your energy supplier for information relating to your water heating tariff rate If you have checked all the previous troubleshooting points and still believe you need assistance phone Aquamax Service or their nearest Accredited Service Agent INSTALLATION Installation Overview This water heater must be installed by a qualified person in accordance with the installat...

Page 18: ...l position and must be accessible without the use of a ladder or scaffold You must be able to read the information on the rating plate If possible leave headroom of one water heater height so the anode can be inspected and or replaced If adequate room is unavailable the water heater must be disconnected drained and removed to enable servicing For outdoor installation the water heater shall be inst...

Page 19: ...bing system including the water heater Care must be taken to avoid air locks The cold water supply line to the water heater must be adequately sized and fitted with an approved full flow gate valve or ball valve and non return valve Water Supply Chemistry Bad water can have a detrimental effect on water heater operation components and life expectancy and may affect warranty Refer to Water Chemistr...

Page 20: ...uirements refer to Water Supplies on page 18 and for ECV requirements refer to Expansion Control Valve on page 20 A disconnection union must always be provided at the cold water inlet and hot water outlet of the water heater to allow for water heater disconnection Left Right Hand Side Water Connections E80 E400Models All Aquamax mains pressure electric water heaters are manufactured with dual inle...

Page 21: ...to plug off the unused cold and hot water supply fittings and the unused PTR fitting When installing brass plugs apply thread sealing tape or an approved thread sealant to plug thread before installation The PTR valve may be connected to either PTR fitting centre two fittings in diagram below Expansion Control Valve In some areas local regulations may make it mandatory to install an expansion cont...

Page 22: ...arge should be as short as possible have a continuous fall all the way from the water heater to the discharge outlet and have no tap valves or other restrictions in the pipe work A drain line from a relief valve must comply with the requirements of AS NZS 3500 4 A drain line must be no longer than 9 metres with no more than three bends greater than 45 before discharging at an outlet or air break T...

Page 23: ... achieve true mains pressure operation the cold water line to the water heater should be the same size or larger than the hot water line from the water heater Hot water system pipe work must be sized according to the individual application by persons competent to do so Reference to the technical specifications of the water heater and local regulatory authority requirements must be made Pipe Work I...

Page 24: ...e cold water line either before or after the isolation valve pressure limiting valve and non return valve to the water heater If the cold supply branch to the TLD is connected downstream of the water heater non return valve then we recommend that copper pipe or suitable high temperature plastic pipe be used This pipe work may be subject to high water temperature and high water pressure If an expan...

Page 25: ...em The benefits of the Off Peak electricity supply will be significantly reduced and the hot water temperature may not be maintained If a circulated flow and return system is required it is necessary to install a secondary booster water heater which is connected to the hot water flow and return line and supplied from the Off Peak electric water heater Aquamax EM50 model water heaters are suitable ...

Page 26: ...240V AC 50Hz mains power supply with over current protection and an isolating switch installed at the switchboard The power supply wires insulation temperature rating and current carrying capacity must be suitable for this application The power supply to a twin element model should be Off Peak overnight to the bottom heating unit and continuous to the top heating unit The power supply to a single ...

Page 27: ...eneral purpose outlet GPO which is connected to a 240V AC 50Hz mains power supply Models installed outdoors or in areas subject to water ingress must have a weatherproof GPO with an IP rating suitable for the area in which it is installed Wiring Diagram Refer to wiring diagram located behind water heater access cover Thermostat Adjustment Warning The thermostat and its protective over temperature ...

Page 28: ...ter must be serviced by a qualified person Commissioning After installation and before commissioning the water heater the following pre commissioning procedure must be performed 1 Check to ensure that all wiring links and electrical connections are secure and tight 2 To ensure the over temperature and energy cut out is set press and release the black reset button on the thermostat s refer to diagr...

Page 29: ...itch if one is installed 2 Close cold water isolation valve on cold water line to water heater Draining the Water Heater Warning Water discharged from the water heater during this procedure may be of a very high temperature Wear personal protective equipment PPE to reduce the risk of scalding To drain the water heater 1 Switch off electrical supply to water heater This can be performed at the wate...

Page 30: ...410 755 1215 1535 1525 B mm 190 190 190 215 215 215 230 C mm 100 100 100 125 125 125 140 D mm 487 487 487 620 620 620 685 H mm 875 1285 1605 975 1435 1755 1760 Max supply Pressure With ECV kPa 960 960 960 680 680 680 680 Without ECV kPa 1120 1120 1120 800 800 800 800 ECV setting kPa 1200 1200 1200 850 850 850 850 PTR Valve kPa 1400 1400 1400 1000 1000 1000 1000 Technical data is subject to change ...

Page 31: ...ater inlet RP 20 Power lead plug Refer to diagram Hot water outlet RP 20 Dimensions PTR valve RP 15 A mm 490 Max supply Pressure B mm 185 With ECV kPa 960 C mm 105 Without ECV kPa 1120 D mm 400 ECV setting kPa 1250 H mm 670 PTR Valve kPa 1400 Technical data is subject to change ...

Page 32: ...800 676 000 or by email at service aquamax com au not for service bookings 1 4 The terms of this warranty is set out in section 2 and apply to water heaters manufactured after 1 st September 2012 1 5 If a subsequent version of this warranty is published the terms of that warranty will apply to water heaters manufactured after the date specified in the subsequent version 2 TERMS OF AQUAMAX WARRANTY...

Page 33: ...ater heater in its original installed location and any genuine Aquamax replacement parts 2 7 The Aquamax warranty does not cover faults that are a result of a Accidental damage to the water heater or any component for example i Acts of God such as floods storms fires lightning strikes and the like and ii third party acts or omissions b Misuse or abnormal use of the water heater c Installation not ...

Page 34: ...D BY AQUAMAX WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3 1 Aquamax will repair or replace a faulty component of your water heater if it fails to operate in accordance with its specifications as follows What components are covered The period in which the fault must appear in order to be covered What coverage you receive All components Year 1 Repair and or replacement of the faulty co...

Page 35: ... that s unavailable the date of manufacture and serial number from the rating label on the water heater b Aquamax will arrange for the water heater to be tested and assessed on site c If Aquamax determines that you have a valid warranty claim Aquamax will repair or replace the water heater in accordance with this warranty 5 2 Any expenses incurred in the making of a claim under this warranty will ...

Page 36: ...ny Plumber s licence number Compliance Certificate if applicable in your state Installation date Model serial number Water Heater date of manufacture AQUAMAX AUSTRALIA PTY LTD ABN 37 138 189 689 www aquamax com au FOR SERVICE TELEPHONE 1800 676 000 NOTE Every care has been taken to ensure accuracy in preparation of this publication No liability can be accepted for any consequences which may arise ...

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