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Solahart 250E5X, Owner'S Manual And Installation Instructions

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Solahart 250E5X Owner'S Manual And Installation Instructions Download Page 35

CONNECTIONS – ELECTRICAL 

35 

EXTERNAL CONTROL DEVICE 

An external control device, the Energy Management Unit, must be installed for this water heater to operate as 
a variable power water heater and take advantage of special tariffs and rebates from 

the consumer’s electricity 

utility. An external Power Meter is also required to take advantage of excess power generated by a solar PV 
system. The Energy Management Unit is installed remote from the water heater. The external Power Meter is 
wired  directly  to  the  switchboard.  The  Energy  Management  Unit  and  Power  Meter  communicate  with  the 
controller  module  on  the  water  heater.  Refer  to  the  installation  instructions  provided  with  the  Energy 
Management Unit and external Power Meter for details of their installation. 
 
The  PowerStore  water  heater’s  controller  module  is  capable  of  communications  using  the  power  line 
telecommunications (PLT) protocol. It is not necessary to hard wire to the water heater an Energy Management 
Unit or Power Meter that is PLT capable and protocol compliant with the PowerStore water heater. 
 

WIRING DIAGRAM 

 
 

 

 
 
Top thermostat 

– setting 

80°C 

Bottom thermostat 

– setting 

80°C. 

 

Electrical Circuit for Twin Element Variable Power Water Heater 

Robertshaw “ST” Thermostats 

 
 

Summary of Contents for 250E5X

Page 1: ...This water heater must be installed and serviced by a qualified person Please leave this guide with the householder Electric Water Heater Owner s Guide and Installation Instructions ...

Page 2: ...ames of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd TRADEMARKS Registered trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd TM Trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd Note Every care has been taken to ensure the accuracy in preparation of this publication No liability can be accepted for any consequences which may arise as a result of its ap...

Page 3: ... warranty on pages 4 to 6 The other pages are intended for the installer but may be of interest Warranty 4 Safety Warnings Installation Notes 7 How Your Water Heater Works 10 About Your Water Heater 13 Maintenance Requirements 16 Water Supplies 18 Save A Service Call 21 Installation 24 Connections Plumbing 31 Connections Electrical 34 Commissioning 36 Draining The Water Heater 38 Solahart Offices ...

Page 4: ...warranty 2 3 If you require a call out and we find that the fault is not covered by the Solahart warranty you are responsible for our standard call out charge If you wish to have the relevant component repaired or replaced by Solahart that service will be at your cost 2 4 Where a failed component or cylinder is replaced under this warranty the balance of the original warranty period will remain ef...

Page 5: ... loses connectivity to the internet 2 10 If the water heater is not sized to supply the hot water demand in accordance with the guidelines in Solahart s water heater literature any resultant fault will not be covered by the Solahart warranty 3 WHAT IS COVERED BY THE SOLAHART WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3 1 Solahart will repair or replace a faulty component of your wate...

Page 6: ...nd serial number from the rating label on the water heater b Solahart will arrange for the water heater to be tested and assessed on site c If Solahart determines that you have a valid warranty claim Solahart 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 be borne by you 6 THE AUSTRALIAN CONSUMER ...

Page 7: ...r if the installation is not in accordance with these instructions DANGER The operation of the over temperature cut out on a thermostat indicates a possibly dangerous situation If the over temperature cut out operates it must not be reset and the water heater must be serviced by a qualified person The water heater will operate until a water temperature of 70 C is reached inside of the cylinder und...

Page 8: ...are prone to freezing the relief valve drain line must be insulated and not exceed 300 mm in length before discharging into a tundish through an air gap Operate the easing lever on the temperature pressure relief valve and expansion control valve once every six 6 months to clear any deposits and ensure the valve and its drain line are not blocked It is very important the lever is raised and lowere...

Page 9: ...pply wires insulation must suit this application or the wiring protected by insulating sleeving with an appropriate temperature rating if it can make contact with the internal storage cylinder The temperature of the internal storage cylinder can reach 80 C on occasion in compliance with all local codes and regulatory authority requirements Installation and commissioning requirements and details fo...

Page 10: ...tricity tariff available SYSTEM OPERATION The Solahart PowerStore Grid Interactive water heater operates as a staged power input water heater at times when utility grid supply is higher than demand or when there is excess solar PV power production When excess power is detected and water heating is required the water heater s controller module and the Energy Management Unit or Power Meter react ena...

Page 11: ...heated the water in the top portion of the tank The bottom heating unit heats the water in the lower portion of the tank to a temperature of 70 C during normal operation in response to a requirement from the electricity utility or during periods of excess solar PV power generation Note AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in potable w...

Page 12: ...0 seconds not a fault During firmware update 30 seconds not a fault If observed for more than 10 minutes application firmware maybe corrupted fault Red LED The red LED generally indicates a fault with the water heater Red LED Operational Status Off green LED solid or standard flash System okay no fault PLT network connected Solid There is a fault with the water heater Fast blink flash Simultaneous...

Page 13: ...tive connection points and are not to be tampered with or removed HOW HOT SHOULD THE WATER BE The water heater s control system allows the water to be heated to a minimum temperature of 60 C and a temperature of 70 C during normal operation On occasion the water may heat to 80 C These temperature settings cannot be adjusted An E6X series water heater can deliver water at these temperatures An E5X ...

Page 14: ...truction installation and draining of a safe tray must comply with AS NZS 3500 4 and all local codes and regulatory authority requirements The water heater must be maintained in accordance with the Owner s Guide and Installation Instructions Refer to Maintenance Requirements on page 16 and to Anode Inspection and Replacement on page 19 If this water heater is to be used where an uninterrupted hot ...

Page 15: ...autions on page 14 INTELLECTUAL PROPERTY On purchase the Solahart water heater becomes your property except for the intellectual property and any other proprietary rights in the firmware or software Software contained in or accessed through the water heater s master control module The Software is owned by Rheem Australia Pty Ltd and its licensors You do not acquire any intellectual property or oth...

Page 16: ...e safe tray if one is installed is not blocked MAJOR SERVICE EVERY FIVE YEARS It is recommended a major service be conducted on the water heater every five 5 years Warning Servicing of a water heater must only be carried out by qualified personnel Phone your nearest Solahart Dealer Note The major service and routine replacement of any components such as the anode and relief valve s are not include...

Page 17: ... thermometer to measure the water temperature from the hot tap used primarily for personal hygiene nearest to the water heater If the water being delivered is at a temperature exceeding 50 C phone your nearest Solahart Dealer to arrange for an inspection The valve must be replaced at intervals not exceeding five 5 years or more frequently in areas where there is a high incidence of water deposits ...

Page 18: ...ct colour coded anode may shorten the life of the water heater cylinder The correct colour coded anode must be selected and fitted to the water heater in accordance with the following advice and the Anode Selection chart on page 18 for the Solahart warranty to apply to the water heater cylinder Total Dissolved Solids Anode colour code 0 40 mg L Green 40 150 mg L Green or Black 150 400 mg L Black 4...

Page 19: ...here should be no smoking or naked flame near the tap whilst it is turned on Any hydrogen gas will be dissipated This is indicated by an unusual spurting of the water from the tap Once the water runs freely any hydrogen in the system will have been released SATURATION INDEX The saturation index is used as a measure of the water s corrosive or scaling properties The saturation index figures stated ...

Page 20: ...in these guidelines for the Solahart warranty to apply SUMMARY OF WATER CHEMISTRY ADVICE AFFECTING WARRANTY The water heater and its components are not suitable for certain water chemistries Those chemistries are listed below If the water heater is connected at any time to a water supply with the following water chemistry the Solahart warranty will not cover any resultant faults on the components ...

Page 21: ...rature is limited from the outlet of an E5X series 50 C limited water heater The water temperature from fixtures supplied from this outlet and used primarily for personal hygiene cannot be increased above 50 C You may also find that due to heavy hot water usage the water temperature may be lower than normally expected due to insufficient heating time being allowed You will need to carefully plan y...

Page 22: ... quantity of water to escape during the heating cycle This quantity should be equal to approximately 1 50 of the hot water used as water expands by this volume when heated However if it discharges more than a bucket full of water in 24 hours there may be another problem The expansion control valve if fitted will discharge water instead of the temperature pressure relief valve as it has a lower pre...

Page 23: ...aste a surprising quantity of hot water and electricity Replace faulty tap washers and have your plumber rectify any leaking pipe work Has there been an increase in hot water usage An increase in hot water usage will result in an increase in water heater operation Has your water heating tariff rate been increased by your electricity retailer since your previous bill ELECTRICITY TARIFFS The electri...

Page 24: ...its life If this water heater is to be used where an uninterrupted hot water supply is necessary for the application or business then there should be 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 provide advice to the system owner about their ne...

Page 25: ...ns supply pressure With expansion control valve 680 kPa Without expansion control valve 800 kPa Expansion control valve not supplied with water heater TANK WATER SUPPLY If the water heater is supplied with water from a tank supply and a pressure pump system is not installed then the bottom of the supply tank must be at least 1 m above the highest point of the hot water plumbing system including th...

Page 26: ...d water delivered to fixtures and appliances used primarily for personal hygiene is at a temperature which is unlikely to scald It is necessary and we recommend that a temperature limiting device be fitted between an E6X series water heater and the fixtures and appliances used primarily for personal hygiene such as in a bathroom ensuite public amenities or other ablution areas to reduce the risk o...

Page 27: ...ure limiting device cannot be installed in circulated hot water flow and return pipe work The tempered water from a temperature limiting device cannot be circulated Where a circulated hot water flow and return system is required in a building a temperature limiting device can only be installed on a dead leg branching off the circulated hot water flow and return pipe If circulated tempered water we...

Page 28: ...imum length of 13 mm Should pre drilling be required extreme caution must be observed when penetrating the jacket of the water heater Note If the cylinder is damaged as a result of attaching pipe clips or saddles to the jacket any resultant faults will not be covered by the Solahart warranty TYPICAL INSTALLATION OUTDOOR LOCATION E5X SERIES TYPICAL INSTALLATION INDOOR LOCATION E5X SERIES ...

Page 29: ...INSTALLATION 29 TYPICAL INSTALLATION OUTDOOR LOCATION E6X SERIES TYPICAL INSTALLATION INDOOR LOCATION E6X SERIES ...

Page 30: ...itres 45 litres 315 litres 1000 kPa 98 kg 426 kg 315E6X 315 litres 45 litres 315 litres 1000 kPa 96 kg 422 kg Dimensions mm A B C D E F G H J K L M 250E5X 1396 640 705 1109 73 103 988 32 88 705 262 92 250E6X 1396 640 705 1109 73 103 988 32 88 315E5X 1640 640 705 1317 113 103 1228 32 88 705 262 92 315E6X 1640 640 705 1317 113 103 1228 32 88 This model is suitable for either indoor or outdoor instal...

Page 31: ...on must always be provided at the cold water inlet and 50 C limited outlet or hot water outlet on the water heater to allow for disconnection of the water heater Warning To prevent malfunction of the temperature limiting valve connecting pipe work must not be inserted deeper than 15 mm into the outlet connection of an E5X series water heater This water heater has either a plastic dip tube or fitti...

Page 32: ...t hang over the end of the thread Hand tighten the valve into the opening marked Relief Valve refer to the installation diagram on page 28 Using a spanner engaged on the valve s spanner flats and applying medium pressure to tighten turn the relief valve an additional to 1 turns to secure and make the joint water tight leaving the valve drain pointing downwards Warning Do not use a pipe wrench or p...

Page 33: ...must be no longer than nine 9 metres with no more than three bends greater than 45 before discharging at an outlet or air break The maximum length of nine 9 metres for a drain line is reduced by one 1 metre for each additional bend required of greater than 45 up to a maximum of three additional bends Where the distance to the point of final discharge exceeds this length the drain line can discharg...

Page 34: ...e management system will provide the maximum financial savings by supplying utility grid sourced power at cheaper tariff times when additional heating is required Discuss the power supply requirements with the householder A flexible 20 mm conduit is required for the electrical cable to the water heater The conduit is to be connected to the unit with a 20 mm terminator Connect the power supply wire...

Page 35: ...board The Energy Management Unit and Power Meter communicate with the controller module on the water heater Refer to the installation instructions provided with the Energy Management Unit and external Power Meter for details of their installation The PowerStore water heater s controller module is capable of communications using the power line telecommunications PLT protocol It is not necessary to ...

Page 36: ...ovement then the valve has been damaged and must be replaced Switch on the electrical supply at the water heater isolating switch on the switchboard and at the isolating switch at the water heater if installed Check the status of the LEDs on the front of the Controller Module on the lower front of the water heater When the power is turned on the green LED will commence to flash to indicate the wat...

Page 37: ...f the water temperature is below 50 C the maximum outlet temperature of the outlet can be adjusted upwards Turn the adjusting knob on the temperature limiting valve counter clockwise down away from the water heater using a 6 mm Allen key Turning the adjusting knob counter clockwise down away from the water heater increases the outlet water temperature turning it clockwise up towards the water heat...

Page 38: ...et the lever snap back or you will damage the valve seat It is very important the lever is raised and lowered gently Operating the lever will release the pressure in the water heater Undo the union at the cold water inlet to the water heater and attach a hose to the water heater side of the union Let the other end of the hose go to a drain Open the relief valve by holding the lever in the raised p...

Page 39: ...39 This page is intentionally blank ...

Page 40: ...ernational Sales 61 8 9351 4600 Facsimile International Sales 61 8 9351 4698 Email solahart solahart com au Web www solahart com Postal Address PO Box 7508 Silverwater New South Wales 2128 Australia Principal Manufacturing Facility 55 Brodie Street Rydalmere New South Wales 2116 Australia www solahart com au Australia For SERVICE Telephone 1800 638 011 or your nearest Solahart Dealer For Sales Tel...

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