Solahart 271 026 NF Installation And Owner'S Manual Download Page 24

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INSTALLATION – SOLAR STORAGE TANK

DIMENSIONS AND TECHNICAL DATA

Model

DBV 270

Capacity

270 litres

Mass

165 kg (empty)

435 kg (full)

Test Point

Gas Pressure (kPa)

Gas Booster
Details

Gas Booster

Model

Delivery

25°C rise

(litres / min)

Hourly Gas

Consumption

(MJ)

Min. Gas
Pressure

(kPa)

minimum maximum

Max. Gas

Pressure

(kPa)

Natural

271 026 NF

199

1.13

0.17

0.91

3.50

Propane

271 026 PF

199

2.75

0.22

1.20

3.50

Model numbers: N = Natural, P = Propane. Letter N or P is included in the model number, eg DBV 270 N5, to
denote gas type.
Specifications are subject to change with ongoing product improvements.

Summary of Contents for 271 026 NF

Page 1: ...OSTED 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 Solahart Industries Pty Ltd ABN 45 064 945 848 ...

Page 2: ...ectors MUST BE of copper and fully insulated with closed cell polymer insulation or similar minimum thickness 13 mm The insulation must be weatherproof and UV resistant if exposed All compression fittings must use brass or copper olives Plastic pipe MUST NOT be used as it will not withstand the temperature of the closed circuit fluid generated by the solar collectors under stagnation conditions Th...

Page 3: ...st Introduction 4 About Your Water Heater 5 How Your Water Heater Works 10 Regular Care 12 Save A Service Call 13 Installation Solar Storage Tank 17 Installation Solar Collectors 26 Connections Plumbing 29 Connections Electrical 33 Commissioning 35 Draining The Water Heater 51 Water Supplies 52 Warranty 53 Solahart Offices 56 ...

Page 4: ...ty Ltd has been producing thermosyphon solar hot water systems which is well over 40 years of hot water experience Solahart is the market leader in Australia and a dominant brand throughout the world Our network of distributors covers over 70 countries in Europe North America Africa and Asia In our home market of Australia we offer the widest range of thermosyphon solar water heater products and w...

Page 5: ...table for the application and will not cause scald injury We recommend and it may also be required by regulations that an approved temperature limiting device be fitted into the hot water 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 hotte...

Page 6: ...ses from some aerosol sprays stain removers and household chemicals become corrosive when drawn into a flame Do not store swimming pool chemicals household cleaners etc near the water heater Do not place anything on top of the water heater or in contact with the flue terminal Ensure the flue terminal is not obstructed in any way at any time Do not use Propane Butane gas mixtures in a Propane model...

Page 7: ...of and UV resistant if exposed The insulation 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 and also reduce pipe heat losses The insulation must be fitted up to the connections on both the solar collectors and the solar storage tank as very high temperature closed circuit fluid can flow from ...

Page 8: ...ar hot and solar cold pipes must be fully insulated with closed cell polymer insulation minimum thickness 13 mm and the system charged with correctly mixed closed circuit fluid to offer protection against freeze damage The system has NO WARRANTY for freeze damage if there is not a continuous fall in the solar hot and solar cold pipes or they are uninsulated or the closed circuit fluid has been inc...

Page 9: ...erably the shower outlet Unscrew the two drain plugs one each at the cold water inlet and hot water outlet on the underside of the water heater Water will drain from the water heater When water stops flowing from the water heater close the hot tap Note It is recommended not to screw the drain plugs back in until the water heater is to be turned on again ...

Page 10: ...s booster is for heating the water at times of low solar energy gain such as during cloudy or rainy weather or during winter months Solar heated water can reach temperatures up to 75 C in the solar storage tank When the solar heated water temperature is above 58 C the gas booster will not boost the water temperature The gas booster operates automatically if heating of the water is required When th...

Page 11: ...eved The supply pressure should be greater than 140 kPa for the rated flow and performance of the gas booster to be achieved GOING ON HOLIDAYS It is not necessary to switch off the electrical supply at the power outlet to the water heater if you are going away However if it is necessary to switch off the power to the water heater refer to To Turn Off The Water Heater on page 6 If the power to the ...

Page 12: ...stern Australia and scaling water areas an expansion control valve is fitted to the cold water line to the water heater Water will flow from its drain line during the heating period Operate the easing lever on the expansion control valve once every six months It is very important you raise and lower the lever gently The expansion control valve should be checked for performance or replaced at inter...

Page 13: ...d that the cold water isolation valve refer to page 29 is fully open GAS BOOSTER OPERATING TOO FREQUENTLY You may find that the gas booster operates more frequently than expected This will occur when the solar preheat water temperature is lower than 58 C which may be experienced during periods of low solar energy gain or if there has been heavy hot water usage Factors to consider are Insufficient ...

Page 14: ...f valve running Is the relief valve discharging too much water Refer to Temperature Pressure Relief Valve Running on page 15 Water heater size Do you have the correct size water heater for your requirements The sizing guide in the sales literature and on the Solahart website www Solahart com au suggests average sizes that may be needed WATER FLOW FLUCTUATES More than one or two hot taps in use at ...

Page 15: ...r an inspection EXPANSION CONTROL VALVE RUNNING If an expansion control valve is fitted in the cold water line to the water heater refer to page 29 it may discharge a small quantity of water instead of the temperature pressure relief valve on the water heater The benefit is that energy is conserved as the discharged water is cooler PRESSURE RELIEF VALVE DISCHARGING A pressure relief valve is incor...

Page 16: ...ts Is the relief valve running excessively Refer to Temperature Pressure Relief Valve Running on page 15 Is one outlet especially the shower using more hot water than you think Refer to Gas Booster Operating Too Frequently on page 13 Is there a leaking hot water pipe dripping hot water tap etc Even a small leak will waste a surprising quantity of hot water and energy Replace faulty tap washers and...

Page 17: ... maximum length of the solar hot and solar cold pipes and the maximum height between the solar storage tank and the solar collectors Refer to Solar Collector Location on page 26 and to Pipe Lengths on page 27 Clearance must be allowed for servicing of the solar storage tank and gas booster The solar storage tank must be accessible without the use of a ladder or scaffold Make sure the temperature p...

Page 18: ...distance requirements from the Australian Gas Installations Standard AS 5601 are observed FROST PROTECTION The water heater has a frost protection system The frost protection system will protect the water heater from damage by preventing ice forming in the waterways of the water heater in the event of freezing conditions occurring The solar collectors and solar cold and solar hot pipes only contai...

Page 19: ...ontrol valve not supplied with the water heater TANK WATER SUPPLY If the water heater is supplied with water from a tank supply then a pressure pump system is recommended to ensure a minimum water pressure of 140 kPa is achieved to allow the gas booster to operate Take care to avoid air locks Notes It is not recommended to install this water heater with a low pressure water supply This water heate...

Page 20: ...ain water tank blocking this section of gutter from the remaining gutter and fitting a tube or pipe of a material compatible with the gutter material in this section of the gutter and penetrating the separation pieces at either end to allow rainwater runoff to pass from one part of the rainwater collection system to the other It may be necessary to fit a down pipe to the section of blocked gutter ...

Page 21: ...outlet from this water heater will not deliver temperatures exceeding 50 C in accordance with AS 4032 2 There is no statutory requirement to fit a supplementary temperature limiting device if this water heater is installed in other than an early childhood centre school nursing home or a facility for young aged sick or disabled people Where another temperature limiting device is installed adjacent ...

Page 22: ...lated 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 or a dead leg installed from the tempered water outlet of this water heater If circulated tempered water were to be returned back to the water heater depending on the location of the return line connection on ...

Page 23: ...he solar storage tank and the solar collectors ANODE TYPES The correct anode type for the water supply being used must be fitted in the water heater refer to Water Supplies on page 52 The black anode is fitted as standard Total Dissolved Solids in water supply to the water heater Anode colour code 0 40 mg L Green 40 600 mg L Black 600 2500 mg L Blue SADDLING PIPE WORK To prevent damage to the cyli...

Page 24: ...del Delivery 25 C rise litres min Hourly Gas Consumption MJ Min Gas Pressure kPa minimum maximum Max Gas Pressure kPa Natural 271 026 NF 26 199 1 13 0 17 0 91 3 50 Propane 271 026 PF 26 199 2 75 0 22 1 20 3 50 Model numbers N Natural P Propane Letter N or P is included in the model number eg DBV 270 N5 to denote gas type Specifications are subject to change with ongoing product improvements ...

Page 25: ...INSTALLATION SOLAR STORAGE TANK 25 TYPICAL INSTALLATION OUTDOOR LOCATION ...

Page 26: ... a roof with a pitch less than 10 a Variable Pitch stand is required Refer to your local Solar Distributor for details For an installation at right angles to across the roof pitch a Flat Roof stand and an Across Pitch stand are both required Refer to your local Solar Distributor for details For an installation opposite to against the roof pitch a Flat Roof stand and an Against Pitch stand are both...

Page 27: ...ctions The solar cold pipe connects to the bottom of the solar collectors and the solar hot pipe connects to the top of the solar collectors diagonally opposite to the solar cold pipe connection The hot sensor connection is at the top of the solar collector directly above the solar cold inlet connection Refer to Warning Plumber Be Aware on page 28 It is essential for these requirements to be follo...

Page 28: ... solar storage tank as very high temperature closed circuit fluid can flow from the solar collectors to the solar storage tank under certain conditions Plastic pipe MUST NOT be used as it will not withstand the temperature of the closed circuit fluid generated by the solar collectors under stagnation conditions The solar collectors can generate extremely high closed circuit fluid temperatures up t...

Page 29: ... heater All olive compression fittings must use brass or copper olives Use thread sealing tape or approved thread sealant on all fittings An isolation valve and non return valve must be installed on the cold water line to the water heater Use the arrangement shown in the diagram Refer also to Hot Water Delivery on page 21 The plumbing arrangements for the cold water inlet tempered water and hot wa...

Page 30: ...elief valve to the drain should be as short as possible and fall all the way from the water heater with no restrictions It should have no more than three right angle bends in it Use DN15 pipe The outlet of the drain line must be in such a position that flow out of the pipe can be easily seen refer to AS NZS 3500 4 but arranged so hot water discharge will not cause injury damage or nuisance The dra...

Page 31: ... input of the gas booster refer to table on page 24 as well as all of the other gas appliances in the premises Warning Always isolate the gas booster before pressure testing the gas supply system Disconnect the gas booster after the isolating cock to prevent the risk of serious damage to the gas control Warranty does not cover damage of any nature resulting from failure to observe this precaution ...

Page 32: ...mp supplied with the solar storage tank will not circulate closed circuit fluid through heights greater than 9 m and solar gain will not be achieved For heights greater than 9 m an auxiliary pump must be installed This pump is the same model as contained within the solar storage tank The auxiliary pump kit PN 299914 is to be installed on the solar cold pipe from the solar storage tank to the solar...

Page 33: ...his Standard Therefore this model water heater complies with the condition stated in AS NZS 3000 2000 clause 6 3 3 3 2 b ELECTRICAL CONNECTION All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the Wiring Rules AS NZS 3000 and local authority requirements Warning Temperature controllers must not be fitted to this water heater as part of a sola...

Page 34: ...URE SETTING The preset outlet booster temperature setting of the gas booster should not be adjusted The setting can only be adjusted by your nearest Solahart Dealer The preset outlet booster temperature setting is 60 C AUXILIARY PUMP The auxiliary pump if installed must be wired to the control board The wiring must be housed in a flexible conduit which must be secured to the side of the solar stor...

Page 35: ...h on the electrical supply at the power outlet to the water heater The power outlet must be switched on for the solar controls to operate and solar gain to be achieved and for the gas booster to operate and have its frost protection activated Check the gas inlet and burner gas pressure of the gas booster refer to Gas Inlet Pressure on page 48 and Burner Gas Pressure on page 48 Open a hot tap The g...

Page 36: ...ommissioning and checking of the solar circuit This includes checking the closed circuit fluid level and conducting a drain back test The following equipment is required a 1500 mm long x 12 mm diameter clear hose closed circuit fluid level hose one 1 hose clamp a suitable plug for one end of the hose suitable tape to affix the hose to the side of the solar storage tank a torch to illuminate the wo...

Page 37: ...o as not to be scalded by either the closed circuit fluid or the air escaping from the solar circuit Pre Commissioning Notes Before commencing the solar circuit commissioning procedure check the solar cold and solar hot pipe work to ensure there is a continuous fall from the solar collectors to the solar storage tank of a minimum 5 1 in 10 grade the maximum recommended pipe length is not exceeded ...

Page 38: ...alve is located adjacent to the solar pump behind the lower front cover of the solar storage tank Attach one end of the hose to the hose tail connection It may be necessary to secure the hose with a hose clamp Plug the free end of the hose Affix the hose securely in a vertical orientation to the front of the solar storage tank using tape adjacent to the text MINIMUM FLUID LEVEL WITH PUMP OPERATING...

Page 39: ... hour and the solar control unit will then enter a fault mode and no solar gain will be achieved 9 Switch on the electrical supply at the power outlet to the solar storage tank Warning Take care not to enter the area inside the solar storage tank behind the front cover whilst the power is on as the electrical circuit will be live The pump will activate and commence pumping closed circuit fluid aro...

Page 40: ...f the solar circuit pipe work including in the roof space and on the roof If leaking rectify any leaks in the solar circuit the height from the base of the storage tank to the top of the collectors has not exceeded the maximum allowable height the length of solar cold and solar hot pipe has not exceeded the maximum recommended pipe length If the maximum allowable height or the maximum recommended ...

Page 41: ...s level then check there is a continuous fall of at least 5 1 in 10 grade in the solar pipe work from the solar collectors to the solar storage tank the solar collectors have an inclination of not less than 10 refer to Solar Collector Location on page 26 the connectors on the inlet and outlet of the collectors are orientated downwards to ensure complete drain back of the closed circuit fluid from ...

Page 42: ...vel is below the text marking it will be necessary to add water to the heat exchanger to top up the level of closed circuit fluid There is sufficient Hartgard concentrate in the solar circuit heat exchanger such that only water needs to be added to the system if it is required to top up the level of closed circuit fluid Note The operating dynamic level of the closed circuit fluid upon the completi...

Page 43: ...tic level marked on the side of the solar storage tank in step 7 It would be necessary to add one litre of water to the heat exchanger Eg If the dynamic level is 180 mm above the text marking then place a mark at least 30 mm but no more than 180 mm below the static level marked on the side of the solar storage tank It would be necessary to drain between one litre and five litres of closed circuit ...

Page 44: ...from the heat exchanger if required To drain closed circuit fluid If not already removed disconnect the drain line and remove the spring clip from the solar circuit relief valve at the top of the solar storage tank and remove the valve refer to step 5 Warning The solar circuit may be under pressure Take care when removing the solar circuit relief valve as a sudden discharge of pressurised hot air ...

Page 45: ...l of the solar circuit pipe work including in the roof space and on the roof 24 If the procedure to check the solar pipe work for leaks is not complete before the pump has automatically turned off then switch off the electrical supply at the power outlet to the solar storage tank wait ten 10 minutes for the operating system to reset to its commissioning sequence otherwise the pump will not operate...

Page 46: ... circuit fluid contains food grade additives rust inhibitor anti freeze agent colour and is harmless to the environment However it is good practice to recover any excess closed circuit fluid and remove from site Completing the Commissioning of the Solar Circuit 29 Reconnect the hot sensor lead to the connecting plug located on the tab in the upper front cover opening It is important to reconnect t...

Page 47: ...status of the LEDs it is necessary to remove the lower front cover Warning The removal of the lower front cover will expose 240 V wiring It must only be removed by an authorised or service person The modes are Flashes Operational Modes Solid green remains on Standby mode 1 x green Flooding solar circuit 2 x green Checking solar contribution 3 x green Pump flow control 4 x green Pump flow establish...

Page 48: ... at the inlet of the gas booster Refit the pipe cover at the completion of the installation BURNER GAS PRESSURE It is necessary to check the burner gas pressure at both the minimum and maximum operational settings It is necessary to have the electrical supply to the water heater switched on the hot water must be flowing and the burners on to check and if necessary adjust the operational gas pressu...

Page 49: ... manometer Note While the MIN button is pressed the gas pressure will at first increase then decrease cycling between an upper gas pressure limit 39 on LED display and a lower gas pressure limit 01 on LED display 6 Release the MIN button when the reading on the manometer agrees with the rating label 7 Release the adjuster button Notes If the burners extinguish and or an error code starts to flash ...

Page 50: ...e water heater on completion of the installation such as on a building site or where the premises is vacant then Switch off the electrical supply at the power outlet to the water heater refer to note below Close the gas isolation valve at the inlet to the water heater Close the cold water isolation valve at the inlet to the water heater Drain the gas booster if there is a risk of freezing conditio...

Page 51: ... screw the drain plugs back in until the water heater is to be turned on again Solar Storage Tank Turn off the water heater refer to To Turn Off The Water Heater on page 50 Close all hot water taps Operate the relief valve release lever do not let the lever snap back or you will damage the valve seat Operating the lever will release the pressure in the water heater Undo the union at the cold water...

Page 52: ...he 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 If under these conditions the water heater has not been used for two or more weeks the following procedure should be carried out before using any electrical appliances automatic washing machines and dishwashers which are connected to ...

Page 53: ... or water supplies where the supply of gas electricity or water does not comply with relevant codes or acts c Where the water heater or water heater component has failed directly or indirectly as a result of excessive water pressure excessive temperature and or thermal input blocked overflow vent drain corrosive atmosphere non Solahart approved or incorrectly mixed closed circuit fluid being used ...

Page 54: ... heat exchanger free of charge with installation and labour costs being the responsibility of the owner Solar Collector from date of installation All installations L J KF Years 2 to 5 New solar collector free of charge with installation and labour costs being the responsibility of the owner Notes Solahart is the supplier of Solahart electronic instantaneous solar gas booster water heaters manufact...

Page 55: ... 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 Switch One Shot Control In Line Booster if installed Model No Serial No...

Page 56: ... Facsimile 08 9351 4635 Facsimile 02 9684 9187 Queensland South Australia Phone 07 3255 5185 Phone 08 8262 7825 Facsimile 07 3255 5189 Facsimile 08 8359 6004 Victoria Tasmania Northern Territory Phone 03 9212 8950 Phone 08 8947 0274 Facsimile 03 9212 8940 Facsimile 08 8947 1944 International Offices Europe Rest of the World Phone International 31 492 579 696 Phone International 61 8 9351 4600 Facs...

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