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

Please leave this guide with the householder. 

 

 

Streamline 

Direct Open Circuit 

SOLAR WATER HEATER 

OWNER’S MANUAL 

AND 

WARRANTY / INSTALLATION INFORMATION 

 
 

 

 
 

 

WARNING: Plumber 

– Be Aware 

Use copper pipe ONLY. Plastic pipe MUST NOT be used. 

It is a requirement of a solar water heater installation that all pipe work be in copper 

and not plastic, due to the effects of high water temperatures and pressures.

 

 
 

Solahart Industries Pty Ltd 

ABN 45 064 945 848 

 

Summary of Contents for Streamline 270MDV

Page 1: ... WATER HEATER OWNER S MANUAL AND WARRANTY INSTALLATION INFORMATION WARNING Plumber Be Aware Use copper pipe ONLY Plastic pipe MUST NOT be used It is a requirement of a solar water heater installation that all pipe work be in copper and not plastic due to the effects of high water temperatures and pressures Solahart Industries Pty Ltd ABN 45 064 945 848 ...

Page 2: ...of may lead to freeze damage There is NO WARRANTY for freeze damage if the solar hot and solar cold pipes are not insulated in accordance with the installation instructions The insulation is essential to assist in providing freeze protection will offer corrosion protection to a metal roof against water runoff over the copper pipe assist in avoiding accidental contact with the solar pipe work as hi...

Page 3: ...ater 4 Regular Care 14 Water Supplies 17 Save A Service Call 20 Installation System 24 Installation Solar Storage Tank 26 Installation Solar Control Unit 32 Installation Solar Collectors 35 Connections Plumbing 40 Connections Electrical 43 Commissioning 47 Draining The Solar Collectors 50 Draining The Water Heater 50 Warranty 53 Solahart Offices 56 ...

Page 4: ...ralia This water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected to a power supply however it may be installed with an in series continuous flow or storage booster If this water heater is installed with an in series booster then the electric booster heating unit will not be connected to a power supply and the references to the el...

Page 5: ...eration The purpose of Night Time Cooling operation is to rid the solar storage tank of excess solar energy gained by Over temperature operation during that day The desired water temperature in the solar storage tank is to be between 60 C to 70 C If the solar control unit has entered Over temperature operation during the day then after the water temperature in the solar collectors reduces later in...

Page 6: ...ng the colder months The amount of water heated by the raised booster heating unit of the Streamline solar storage tank is 220 litres 410 model 170 litres 320 model or 140 litres 270 model The water heater is most suited for the booster heating unit to be connected to either a continuous or a time of use or an extended Off Peak overnight and day electricity supply A timer can also be used to contr...

Page 7: ... pipe work to the bathroom and ensuite when this water heater is installed This will keep the water temperature below 50 C at the bathroom and ensuite The risk of scald injury will be reduced and still allow hotter water to the kitchen and laundry TEMPERATURE ADJUSTMENT The water heater features a tradesperson adjustable thermostat This requires a licensed tradesperson to make any temperature adju...

Page 8: ...s each of these devices is fitted and is in working order The operation of the over temperature cut out on the 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 If the power supply cord or plug to the solar control unit or the electrical conduit to the solar storage tank is d...

Page 9: ...us length of time for boosting is Booster heating unit size Model Minimum winter cold water temperature Temperature rise 2 4 kW 3 6 kW 4 8 kW 270 Cool temperate climate 10 C 50 C 3 hours 2 hours 1 hours Temperate sub tropical climate 15 C 45 C 3 hours 2 hours 1 hours Tropical climate 20 C 40 C 2 hours 2 hours 1 hours 320 Cool temperate climate 10 C 50 C 4 hours 3 hours 2 hours Temperate sub tropic...

Page 10: ...s and solar flow and return pipe work Refer to Terms of the Solahart Warranty on page 53 PIPE WORK AND INSULATION The solar hot and solar cold pipe work between the solar storage tank and the solar collectors and between the solar storage tank and in series booster if one is installed MUST BE of copper The full length of the solar hot and solar cold pipes MUST BE insulated The insulation must be o...

Page 11: ...for less than 48 hours 4 x red Hot sensor in collector open circuit no green remains off Power outage or call for service 5 x red Cold sensor short circuit 6 x red Cold sensor open circuit If the power supply to the solar control unit is on and the green LED is off or the red LED is flashing this indicates there may be a fault with the water heater The red LED may emit from three to six flashes in...

Page 12: ...ctor circuit through the bleed valve This is evidenced by spurting of water from the drain line connected to the bleed valve Warning Stand well aside of the air bleed valve drain pipe discharge point and exercise care to avoid any splashing of water as water or in some circumstances steam discharged from the solar collectors may be of a very high temperature Close the bleed valve when water runs f...

Page 13: ... NZS 3000 and all local codes and regulatory authority requirements In New Zealand the installation must also conform with Clause G12 of the New Zealand Building Code Refer also to Pipe Work and Insulation on page 10 VICTORIAN CUSTOMERS Notice to Victorian Customers from the Victorian Plumbing Industry Commission This water heater must be installed by a licensed person as required by the Victorian...

Page 14: ...ucted on the water heater Warning Servicing of a water heater must only be carried out by a qualified person Phone your nearest Solahart Dealer Note The five year service and routine replacement of any components such as the anode and relief valves are not included in the Solahart warranty A charge will be made for this work Only genuine replacement parts should be used on this water heater The ma...

Page 15: ...f water deposits refer to Water Supplies on page 17 EXPANSION CONTROL VALVE In many areas including South Australia Western Australia and scaling water areas an expansion control valve is fitted to the cold water line to the water heater The expansion control valve may discharge a small quantity of water from its drain line during the heating period instead of the temperature pressure relief valve...

Page 16: ... the solar collectors follow the procedure Bleeding the Solar Collectors on page 12 allowing the water to flow from the bleed valve drain line for five minutes before closing the bleed valve It is recommended to flush the solar collectors every five years This will assist in keeping the solar collectors solar cold pipe and solar hot pipe clear of sediment HOUSEHOLD MAINTENANCE AROUND THE SOLAR STO...

Page 17: ...covered by the Solahart warranty when the total dissolved solids TDS content in the water is less than 2500 mg L and when the correct colour coded anode is used If an incorrect colour coded anode is used in the water heater any resultant faults will not be covered by the Solahart warranty In addition the use of an incorrect colour coded anode may shorten the life of the water heater cylinder The c...

Page 18: ...usual 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 In a corrosive water supply the water can attack copper parts and cause them to fail Where the saturation index is less than 1 0 the water is very corrosive and the Solahart w...

Page 19: ...ECTING WARRANTY The water heater solar collectors and their 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 listed below Water Chemistry Component Total Dissolved Solids TDS 2500 mg...

Page 20: ...he red LED is flashing on the Solar Monitor label there may be a problem with the solar water heater operation and solar gain is not being achieved This will result in the booster heating unit operating to provide all of the hot water required Switch off the electrical supply at the power outlet to the solar control unit for a few seconds then switch on again If the green LED remains off or the re...

Page 21: ...lso be noticed in the morning when the booster heating unit has not been energised overnight This in particular may be experienced during periods of low solar energy gain or if there has been heavy hot water usage the previous night TEMPERATURE PRESSURE RELIEF VALVE RUNNING Normal Operation It is normal and desirable this valve allows a small quantity of water to escape during the heating cycle Ho...

Page 22: ...but may take up to ten 10 minutes If the red LED continues to emit a rapid pulse for longer than ten 10 minutes switch off the electrical supply at the power outlet to the solar control unit for a few seconds then switch on again If the red LED continues to emit a rapid pulse for longer than ten 10 minutes phone your nearest Solahart Dealer to arrange for an inspection Series of Flashes If the red...

Page 23: ...ot water system maximum electrical energy savings can be achieved with careful planning of hot water usage Should you at any time feel your electricity account is higher than expected we suggest you check the following points Is the relief valve running excessively Refer to Temperature Pressure Relief Valve Running on page 21 Is one outlet especially the shower using more hot water than you think ...

Page 24: ...s In particular the requirements for safety whilst manual lifting working at heights and on roofs Installers must be competently trained in Height Hazard Assessment Working at Height Procedures Assessment Use Wearing of correct height safety equipment harnesses etc All other relevant safety factors specific to the installation and maintenance work to be compliant with suitable Occupational Health ...

Page 25: ...ge tank or other suitable form placed in an accessible location such as the meter box for later inspection WATER HEATER APPLICATION This water heater is designed for use in a single family domestic dwelling for the purpose of heating potable water Its use in an application other than this may shorten its life If this water heater is to be used where an uninterrupted hot water supply is necessary f...

Page 26: ... base as acceptable to local authorities The base of the water heater is made of corrosion resistant material and it may be placed directly in contact with the supporting surface It is not necessary to allow for free air circulation under the base of the water heater Note The water heater should not be placed in direct contact with a concrete surface that is less than two months old and not fully ...

Page 27: ... isolation valve and pressure limiting valve to the solar storage tank but it MUST BE before the non return valve If an expansion control valve is required it must always be installed after the non return valve and be the last valve prior to the solar storage tank Warning A non return valve MUST BE installed on the cold water line to the solar storage tank AFTER the cold water branch to a temperat...

Page 28: ...ted tempered water were to be returned back to the water heater depending on the location of the return line connection on the water supply line to the water heater then either water will be supplied to the cold water inlet of the temperature limiting device at a temperature exceeding the maximum recommended water supply temperature or when the hot taps are closed no water will be supplied to the ...

Page 29: ...ter than 600 mg L 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 during long periods of no use In areas where this is likely to occur the installer should instruct the householder on how to dissipate the gas safely refer to Caution on page 18 SADDLING PIPE WORK To prevent d...

Page 30: ...acity Boost Capacity Tank Mass kg Empty Full 270MDV 270 litres 140 litres 71 342 320MDV 320 litres 170 litres 87 413 410MDV 410 litres 220 litres 111 527 Dimensions mm A B C D E F H J1 J2 N S 270MDV 1395 640 680 1117 73 588 32 88 32 412 73 320MDV 1640 640 680 1357 73 710 32 88 32 481 73 410MDV 1840 690 730 1519 81 795 30 82 30 532 81 Technical data is subject to change ...

Page 31: ...MENT OUTDOOR LOCATION Solar Direct Pumped Electric Boost Models Single Element Typical Installation Solar Storage Tank TYPICAL INSTALLATION SINGLE ELEMENT INDOOR LOCATION Solar Direct Pumped Electric Boost Models Single Element Typical Installation Solar Storage Tank ...

Page 32: ... 088119 fitting nut compression Rye 10090 1 x 088027 fitting olive compression brass 1 088064 Sensor tee nipple assembly solar pumped consisting of 1 x 088061 tee 3 way cold sensor 1 x 088062 sensor nipple solar pumped 1 x 087026 O ring 5 16 ID x 1 16 BS011 silicone 1 223603 Pipe preformed tube x 400 mm long 1 080031 Screws No 8 x 13 mm 4 088063 Fitting union male x Rye 4910 3 088143 Fitting nippl...

Page 33: ...n position on the probe Lock it into position with the locking washer and clip provided Connect the hot sensor lead from the solar collector installation to the hot sensor cable connector at the underside of the solar control unit 8 Note Ensure the hot sensor lead is not in direct contact with the solar hot or solar cold pipe work at any point of the solar circuit otherwise damage to the sensor le...

Page 34: ...ge Tank Single Element with Solar Control Unit Solar Direct Pumped Electric Boosted Models Single Element SUPPLIED IN SOLAR CONTROL UNIT KIT 299280 1 Hex nipple X 2 4 way tee 3 Hex nipple x 4 Preformed pipe DN15 5 Compression nut 6 Olive 7 Circulator 8 Solar control unit 9 Screws 10 Cold sensor probe 11 Air bleed valve and non return valve assembly 12 Insulation 400 mm long x 12 mm diam 13 Insulat...

Page 35: ...thened Consult a structural engineer Each solar collector and its fittings weighs approximately 38 kg when full of water ORIENTATION OF SOLAR COLLECTORS To help maximise system performance solar collectors should be installed with an optimum orientation facing true north in the southern hemisphere or true south in the northern hemisphere Always check for true north or true south using a compass or...

Page 36: ...reater than 45 a With Pitch frame is necessary Refer to your local Solahart Dealer for details A Variable Pitch frame can be installed to increase the angle of inclination of the collectors used in a Streamline water heater installation This type of frame should be used if the roof pitch either varies by more than 20 from the optimum angle or is less than 10 The use of a Variable Pitch frame shoul...

Page 37: ... 20 40 metres 20 For each additional 90 bend reduce the maximum total pipe length by 0 5 metres For each additional metre of pipe length reduce the number of 90 bends by two Note One 90 elbow is equal to two 90 bends NR not recommended Notes It is important to connect the solar cold and solar hot pipes to the correct connections at the solar collector and at the solar storage tank The solar cold p...

Page 38: ...e heat losses The insulated copper pipe work should be fixed at suitable locations to prevent or reduce the possibility of noise from water hammer and vibration from occurring is not to be placed or installed in contact with plastic pipe work Likewise plastic pipe work is not to be placed or installed in contact with the insulated copper pipe work after the solar circuit is installed Plastic pipe ...

Page 39: ...ioning of the heated water reticulation system in a building in accordance with Clause 11 1 and 11 3 a of AS NZS 3500 4 It may be necessary to pressure test the collector circuit to comply with codes and regulatory authority requirements or on other occasions where the solar collectors and solar cold and solar hot pipe work are installed prior to the solar storage tank such as on a building site D...

Page 40: ... return line after the solar storage tank and prior to the in series water heater supplied from the solar water heater Refer to Circulated Hot Water Flow and Return System on page 28 CONNECTION SIZES Hot water connection Rp 3 4 Cold water connection Rp 3 4 Solar hot from collector connection DN15 compression fitting solar hot inlet to tank Rp 3 4 Solar cold to collector connection DN15 compression...

Page 41: ...es booster is a continuous flow water heater TEMPERATURE PRESSURE RELIEF VALVE The temperature pressure relief valve is shipped either under the top flap of the water heater carton or behind the front cover The temperature pressure relief valve must be fitted before the water heater is operated Before fitting the relief valve make sure the probe has not been bent Seal the thread with Teflon tape n...

Page 42: ... If a drain line discharges into a tundish the drain line from the tundish must be not less than DN20 The drain line from a tundish must meet the same requirements as for a drain line from a relief valve Warning As the function of the temperature pressure relief valve on this water heater is to discharge high temperature water under certain conditions it is strongly recommended the pipe work downs...

Page 43: ... water heater will only operate on a sine wave at 50 Hz Devices generating a square wave cannot be used to supply power to the water heater SOLAR STORAGE TANK The solar storage tank with an electric booster heating unit must be directly connected to a 240 V AC 50 Hz mains power supply with an isolating switch installed at the switchboard A flexible 20 mm conduit is required for the electrical cabl...

Page 44: ...control unit supplied with a 1 8 metre power cord requires a switched 240 V AC 50 Hz general purpose outlet GPO to be located within 1 2 metres of the installation The GPO must have a continuous power supply originating from a circuit other than the water heater circuit The GPO is required to be weatherproof if installed outdoors The GPO to the solar control unit must be switched on for the solar ...

Page 45: ... hot water usage to enable a boosting period of not less than the recommended continuous length of time for boosting for a period when power will be available to the timer It may be necessary to program a second period into the timer such as prior to the morning hot water usage Check with the householder The recommended continuous length of time for boosting is Booster heating unit size Model Mini...

Page 46: ...tchboard EXTENDED OFF PEAK POWER SUPPLY Switchboard Timer Terminal Block TIMER WITHOUT CONTACTOR Timer Terminal Block TIMER WITH CONTACTOR if required EXTENDED OFF PEAK POWER SUPPLY timer with rechargeable battery Switchboard TIMER WIRING DIAGRAMS ELECTRIC BOOSTED DIRECT SOLAR WATER HEATER ...

Page 47: ...the electrical supply at the isolating switch to the solar storage tank Set the timer if one is installed Refer to Booster Control on page 45 Remove the packaging covers from the solar collectors Explain to the householder or a responsible officer the functions and operation of the solar water heater and the timer if one is installed Upon completion of the installation and commissioning of the wat...

Page 48: ...te the circulator is operating and power to the solar control unit has been on for less than 48 hours The circulator will operate at full speed for approximately fifteen 15 seconds After fifteen 15 seconds the solar controller will commence to pulse the circulator to reduce the flow rate through the collector circuit This will increase the temperature rise across the solar collectors and assist in...

Page 49: ...n 130 C green slow pulse Standby mode power on for less than 48 hours red rapid pulse Temperature rise across collector greater than 45 C circulator at full speed green rapid pulse Circulating water through collectors 3 x red Hot sensor in collector short circuit 3 x green Circulating water through collectors power on for less than 48 hours 4 x red Hot sensor in collector open circuit no green rem...

Page 50: ...e solar hot and solar cold pipes When water stops flowing from the solar hot and solar cold pipes reconnect the solar cold pipe to the circulator and tighten the compression fitting Close the bleed valve DRAINING THE WATER HEATER To drain the water heater Cover the solar collectors with an opaque material Open a hot water tap and allow the water to run for five minutes immediately prior to drainin...

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Page 53: ...l materials handling and or safety equipment shall be the owner s responsibility In other words the cost of dismantling or removing cupboards doors or walls and the cost of any special equipment to bring the water heater to floor or ground level or to a serviceable position is not covered by this warranty 2 6 This warranty only applies to the original and genuine Solahart water heater in its origi...

Page 54: ...ke a claim under this warranty you need to a Be the owner of the water heater or have consent of the owner to act on their behalf b Contact Solahart without undue delay after detection of the defect and in any event within the applicable warranty period 4 2 You are not entitled to make a claim under this warranty if your water heater a Does not have its original serial numbers or rating labels b I...

Page 55: ...stallation please circle New Solar to Solar Tank Replacement Other Work Delivery Details System Model No System Type Tank Model No Tank Serial No Collector Model No No of Collectors Collector Serial No s 1 2 3 4 Booster Type please circle Electric continuous Off Peak 1 night Off Peak 2 night day In Tank Gas Booster In Line Booster Solar Preheat only Booster Control please circle None Timer Manual ...

Page 56: ...Email solahart solahart com au Web www solahart com Postal Address PO Box 95 Welshpool WA 6986 Australia International Offices Registered Office 1 Alan Street PO Box 6 Rydalmere New South Wales 2116 Australia www solahart com au Europe Phone International 31 492 579 696 Facsimile International 31 492 579 694 USA Australia Phone International 1 800 621 5622 For SERVICE Telephone 1800 638 011 or you...

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