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Rheem Solar Thermosiphon Water Heater, Owner'S Manual And Installation Instructions, Page: 15 / 64

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Rheem Solar Thermosiphon Water Heater Owner'S Manual And Installation Instructions Download Page 15

WATER SUPPLIES 

15 

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 Rheem warranty will not cover any resultant faults on the components listed below: 
 

Water Chemistry 

Component 

Chloride > 250 mg/L 

water heater cylinder and heat exchanger 

pH < 6.0 

water heater cylinder and heat exchanger 

Saturation Index (SI) < -1.0 

solar collector in a direct system 
copper sheathed heating unit 

Saturation Index (SI) > +0.4 
(if an expansion control valve is not fitted) 

water heater cylinder and heat exchanger 
temperature pressure relief valve 

Saturation Index (SI) > +0.8 

solar collector in a direct system 
standard watts density heating unit 

 

Summary of Contents for Solar Thermosiphon Water Heater

Page 1: ...officer Owner s Guide and Installation Instructions Solar Thermosiphon Water Heater Stainless Steel Tanks 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 ...

Page 2: ...rance be at least 13 mm thick however thicker insulation may be required to comply with the requirements of AS NZS 3500 4 be weatherproof and UV resistant be fitted up to and cover the connections on both the solar storage tank and the solar collectors The insulation will offer corrosion protection to a metal roof against water runoff over the copper pipe assist in avoiding accidental contact with...

Page 3: ...rest About Your Water Heater 4 Regular Care 11 Water Supplies 13 Save A Service Call 16 Installation 19 Installation Solar Collectors 34 System Assembly 37 Connections Plumbing 48 Connections Electrical 51 Multiple Installations 54 Commissioning 56 Draining The Solar Storage Tank 59 Draining The Closed Circuit 60 Warranty 62 ...

Page 4: ...thermostat and boosting controls in this Guide will not be applicable to the installation For information relating to the function and operation of the in series booster refer to the Owners Guide and Installation Instructions supplied with the booster water heater SOLAR OPERATION The Rheem solar thermosiphon system has its stainless steel solar storage tank installed on the roof directly coupled t...

Page 5: ...e 21 a pressure limiting valve must be fitted The supply pressure should be greater than 350 kPa for true mains pressure operation to be achieved HOW HOT SHOULD THE WATER BE The temperature the system will operate at under solar radiation will depend upon the level of solar radiation available orientation and inclination of the solar collectors incoming cold water temperature and volume of hot wat...

Page 6: ... the solar storage tank and the solar collectors as this may result in a burn injury Very high temperature closed circuit fluid or hot water and in some circumstances high temperature steam can be generated by the solar collectors under certain conditions and flow through the pipe work from the solar collectors to the solar storage tank Note Any exposed pipe work or fittings in the solar circuit s...

Page 7: ...t available or the booster switch or time clock is left OFF If higher temperature water is required particularly in the morning then use of the booster heating unit is necessary to raise the temperature of the water in the top section of the cylinder Refer to Booster Control on page 7 BOOSTER CONTROL An isolating switch is installed in the electrical meter box for the solar storage tank This shoul...

Page 8: ...o not fall below those shown This may be necessary during periods of very low solar energy gain through the solar collectors such as during constant rain or extremely cloudy weather particularly in winter when the incoming cold water temperature is lower The period will also provide a sufficient heat up time for the electric booster to operate if required to satisfy the requirements of AS 3498 The...

Page 9: ... as on an accessible roof then the solar hot and solar cold pipes must be insulated The solar hot and solar cold pipes may be required to be insulated to comply with local regulations If insulation is required the full length of the solar hot and solar cold pipes MUST BE insulated Note Any exposed pipe work or fittings in the solar circuit should be attended to and covered with insulation Phone Rh...

Page 10: ...s and regulatory authority requirements In New Zealand the installation must also conform with Clause G12 of the New Zealand Building Code 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 Building Act 1993 Only a licensed person will give you a Compliance Certifica...

Page 11: ...conducted on the water heater Warning Servicing of a water heater must only be carried out by a qualified person Phone Rheem Service or their nearest Accredited Service Agent Note The five year service and routine replacement of any components such as the relief valves are not included in the Rheem warranty A charge will be made for this work Only genuine replacement parts should be used on this w...

Page 12: ...valve should be replaced at intervals not exceeding 5 years or more frequently in areas where there is a high incidence of water deposits refer to Water Supplies on page 13 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...

Page 13: ...pplier or it should be tested to ensure the water supply meets the requirements given in these guidelines for the Rheem warranty to apply CHLORIDE AND PH In a high chloride water supply the water can corrode stainless steel parts and cause them to fail Where the chloride level exceeds 250 mg L the Rheem warranty does not apply to a stainless steel cylinder or a heat exchanger in a 52H cylinder pH ...

Page 14: ...ould be covered when the water heater is not intended to be used for more than two weeks Where the saturation index exceeds 0 80 the Rheem warranty does not apply to a standard watts density heating unit or a solar collector in a direct solar water heater system A low watts density heating unit or an indirect solar water heater must be used for the Rheem warranty to apply to the heating unit or so...

Page 15: ...cover any resultant faults on the components listed below Water Chemistry Component Chloride 250 mg L water heater cylinder and heat exchanger pH 6 0 water heater cylinder and heat exchanger Saturation Index SI 1 0 solar collector in a direct system copper sheathed heating unit Saturation Index SI 0 4 if an expansion control valve is not fitted water heater cylinder and heat exchanger temperature ...

Page 16: ...s or if the glass is dirty the effectiveness of the solar collectors will be greatly reduced Have the trees trimmed or the solar collectors relocated if the obstruction is permanent or clean the collector glass refer to Collector Glass on page 12 Are you using more hot water than you think Is one outlet especially the shower using more hot water than you think Very often it is not realised the amo...

Page 17: ...to operate the relief valve lever Steady flows for long period often at night This may indicate the mains water pressure sometimes rises above the designed pressure of the water heater Ask your installing plumber to fit a pressure limiting valve Warning 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...

Page 18: ...to Not Enough Hot Water on page 16 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 have your plumber rectify any leaking pipe work Are you using the booster heating unit properly Refer to Booster Control on page 7 Has there been an increase in hot water usage An increase in hot wa...

Page 19: ...irements 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 and Safety Regulations C...

Page 20: ... of complying with the regulations published by Sustainability Victoria see www sustainability vic gov au This documentation may be in the form of an indelible label adhered to the solar storage 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 f...

Page 21: ...ges 27 to 33 For multiple water heater installations follow the instructions on pages 54 and 55 SAFE TRAY Where damage to property can occur in the event of the water heater leaking the water heater must be installed in a safe tray Construction installation and draining of a safe tray must comply with AS NZS 3500 4 and all local codes and regulatory authority requirements AS NZS 3500 4 also has pa...

Page 22: ...ction of roof away to drain and the other to the rainwater collection side of the gutter to take the rain water runoff to the rain 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 on...

Page 23: ...cold water line to the temperature limiting device can be branched off the cold water line either before or after the isolation valve and pressure limiting valve to the solar storage tank but it MUST BE before the non return valve to a direct 52L RL series system The cold water line to the temperature limiting device can be branched off the cold water line either before or after the non return val...

Page 24: ...eturn 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 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 o...

Page 25: ...lacing a tank over 5 years old the replacement tank must be fitted with a new temperature pressure relief valve and expansion control valve COLLECTOR REPLACEMENT Care must be taken to ensure the surface area of new collectors is equal to 10 that of the existing collector surface area otherwise overheating in summer or lower recovery rates in winter may occur OVER TEMPERATURE PROTECTION AS NZS 2712...

Page 26: ...ull kg Model Qty Empty Full Weight kg Full kg RL11 direct 52L180 180 48 226 Australis or Titan 1 33 34 35 36 6 7 267 269 RL32 direct 52L300 305 72 367 Australis or Titan 2 66 68 69 71 8 9 444 447 Technical data is subject to change Tank model number has a four digit suffix to denote the heating unit size and jacket colour e g 52L300R775 where R5 2 4kW R7 3 6kW 25 Night Sky 40 Deep Ocean 50 Pale Eu...

Page 27: ...n 2 66 68 69 71 8 13 450 457 RLX33 indirect 52H300 305 78 373 Australis or Titan 3 99 102 104 107 10 16 487 496 52H180 1S indirect 52H180 180 53 231 S200 1 48 52 6 289 52H300 2S indirect 52H300 305 78 373 S200 2 96 104 8 485 Technical data is subject to change Tank model number has a four digit suffix to denote the heating unit size and jacket colour e g 52L300R775 where R5 2 4kW R7 3 6kW 25 Night...

Page 28: ...INSTALLATION 28 TYPICAL INSTALLATION SOLAR THERMOSIPHON 300 TYPICAL INSTALLATION RHEEM PREMIER HILINE 52H300 ...

Page 29: ...rs 12 Boiler Union 13 Collector Rail 14 Tank Strap 15 Collector Flow Pipe 16 Combination Stop Strainer Non Return Valve 17 PLV 500 kPa 18 Tank Starter Pipe Assy 19 Collector Strap 20 Filling Plug Assembly 21 Collector Bung 22 Pressure Relief Valve 200 kPa 24 Plastic End Cover pr 36 Tank to Collector Spacer 37 Copper reducer DN25 x DN20 if required not supplied optional Note Pressure Relief Valve 2...

Page 30: ...ctor connections O ring Tank connections Silicone Rubber Washer 8 H50 ECV 700 kPa 9 Brass Nipple 10 Brass T 11 Self Tap Screw 8gge X 12 Boiler Union 13 Collector Angle 14 Collector and Tank Straps 15 Collector Flow Pipe 16 Combination Stop Strainer Non Return Valve 17 PLV 500 kPa 18 Olive Compression 19 Nut Compression 20 Plastic End Cover pr 22 Tank to Collector Spacer if required not supplied op...

Page 31: ... Silicone Rubber Washer 8 H50 ECV 700 kPa 9 Brass Nipple 10 Brass T 11 Self Tap Screw 8 gge X 12 Boiler Union 13 Collector Angle 14 Collector and Tank Straps 15 Collector Flow Pipe 16 Combination Stop Strainer Non Return Valve 17 Pres Limit Valve 500 kPa 18 Olive Compression 19 Nut Compression 20 Plastic End Cover Pr 21 TRV Valve 22 Tank to Collector Spacer if required not supplied optional Explod...

Page 32: ...ew 8 gge X 12 Boiler Union 13 Collector Angle 14 Collector and Tank Straps 15 Collector Flow Pipe 16 Combination Stop Strainer Non Return Valve 17 PLV 500 kPa 18 Tank Starter Pipe Assy 20 Boiler Tap 21 M33 To BSP Reducing Bush 22 Pressure Relief Valve 200 kPa 23 M33 To Cone Adaptor 24 Plastic End Cover pr 32 Copper Blanking Disk 36 Tank to Collector Spacer if required not supplied optional Note Pr...

Page 33: ...urn Valve 17 PLV 500 kPa 18 Tank Starter Pipe Assy 20 Boiler Tap 21 M33 To BSP Reducing Bush 22 PR200 Pressure Relief Valve 23 M33 To Cone Adaptor 24 Plastic End Cover pr 25 OTP Reservoir 26 Reservoir Clamp 27 Clamp Bracket 28 Tek Screw 10g 16 x 25mm 29 Flexi Hose 400 Long 30 Tank To Valve Pipe 31 OTP Valve 32 Copper Blanking Disk 33 Blanking Plug Including O Ring 34 Reducing Nipple 35 Adaptor Inc...

Page 34: ...80 litre Each S200 solar collector and its fittings weighs up to approximately 60 kg when full of closed circuit fluid and each Australia and Titan solar collector and its fittings weighs approximately 43 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 hemisp...

Page 35: ...the roof pitch is less than 10 or varies by more than 20 below the optimum angle A tank frame mounting kit is also required with a Fixed Pitch frame Refer to your local Solar Distributor for details The use of a Fixed Pitch frame should be discussed with the system owner If this option is neither possible nor acceptable to the system owner then the system owner needs to be made aware of understand...

Page 36: ...onnections on both the solar storage tank and the solar collectors 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 as high temperature water or closed circuit fluid can flow from the solar collectors to the solar storage tank and also reduce pipe heat losses Plastic pipe MUST NOT...

Page 37: ...300 1 344451 Pipe hot assembly HX180 1 344453 Pipe hot assembly HX300 2 collector 1 337144 Tank to collector spacer 2 2 331928 Collector clamp standard 2 4 330350 Screw set 5 16 UNC x SS 2 4 330806 Nut 5 16 SS 2 4 330354 Washer 5 16 SS 2 4 344123 Coupling reducer DN25 x DN20 copper 1 1 344124 Union 15Cn x G B connector 1 1 344128 Union 20Cn x G B connector 2 2 334046 Nipple R M x R M 1 1 344139 Gl...

Page 38: ... M 1 1 1 1 1 330606 Copper blanking disc 2 2 2 2 2 344132 Tap boiler drain 1 1 1 1 1 344133 Tee M33 F x G x G B G 1 1 1 1 1 344134 Adaptor Antifreeze M33 M x G F 1 1 1 1 1 330695 Collector connector assembly screwed fitting 2 2 4 4 344166 Adaptor union body M33 M x G F conetite 2 2 2 2 2 507019 Screw self tapping 8G x 12 pan head zinc plated 3 4 4 5 5 345096 Silicone rubber washer 31 x 22 5 x 2 0 ...

Page 39: ...ssembly RL180 1 344411 Pipe hot assembly RL300 1 1 344554 Pipe cold assembly lower RL300 TRV 1 344555 Pipe cold assembly upper RL300 TRV 1 337144 Tank to collector spacer 2 2 2 344133 Tee M33 F x G x G B G 1 1 1 349002 Spanner hot outlet 1 1 1 344391 Valve thermosiphon resistor J507 200 1 347298 Instruction TRV to cold pipe assembly 1 331655 Nut compression G 1 1 1 331656 Olive 1 1 1 330600 Gland ...

Page 40: ...ater has been commissioned and is ready for use otherwise damage to the O rings or silicone rubber washers in the connections to the solar collector can occur Upon completion of the installation of the solar water heater the packaging material may be removed from the S200 solar collectors whether or not the solar water heater is commissioned The solar collector packaging must be removed completely...

Page 41: ... the straps towards the end of the angle rail Note The solar collectors must be installed at an angle from the horizontal Use a spirit level to determine the horizontal Ensure the end of the collector angle rail at the right hand outlet side of the solar collectors is between 12 15 mm for one solar collector or 24 30 mm for two solar collectors or 36 45 mm for three collectors higher up the roof f...

Page 42: ...SYSTEM ASSEMBLY 42 Correct Method of Installing Collectors Incorrect Method of Installing Collectors Incorrect Method of Installing Collectors Incorrect Method of Installing Collectors ...

Page 43: ...OTP kits and single collector kits 7 Collector Unions For a 300 model with two or three solar collectors couple the solar collectors together using the collector unions and O rings or silicone rubber washers screwed fitting collectors only supplied in the pipe kit conetite collector connection screwed collector connection Collector Union Assembly 8 Clamps and Fixing Collector Bottom Ensure the sol...

Page 44: ...ection If a Thermosiphon Restrictor Valve TRV is to be fitted to an RL series system or an Over Temperature Protection OTP fitted to an RLX series system refer to the installation instructions supplied with the kit for additional information of the installation of the over temperature protection components 12 Tank to Collector Connections of Pipe Work 52L RL direct system Connect the solar cold pi...

Page 45: ...lar storage tank to expose the rafters Once in position fix the tank straps to the rafters using suitable screws or anchors Replace the tiles Metal Roof once in position fix the tank straps to the rafters through the metal roofing material using suitable screws or anchors The tank straps may be cut to a length of approximately 400 mm to retain the aesthetics of the installation Note Fixings must p...

Page 46: ... connections and filling the system with water 22 Plumbing and Electrical Connections Refer to Connections Plumbing on page 48 for details on the cold water and hot water plumbing and Connections Electrical on page 51 for details on the electrical connection Notes Penetrations through the roofing material must be at the high point of the roof tile or metal sheet made neatly and kept as small as pr...

Page 47: ...vel On a pitched roof installation without a frame the hot outlet side of the collector array is between 12 15 mm for one solar collector or 24 30 mm for two solar collectors or 36 45 mm for three solar collectors higher up the roof from the horizontal than the solar cold side of the collector array If in doubt use a spirit level On a frame installation depending upon the positioning of the frame ...

Page 48: ...er heater supplied from the solar water heater Refer to Circulated Hot Water Flow and Return System on page 24 CONNECTION SIZES 52L RL series 52H RLX series Hot water connection G 3 4 B G 1 2 G 3 4 B G 1 2 Cold water connection Rp 1 2 DN25 copper tube with DN25 x DN20 reducer connection to tank M33 F Relief valve connection Rp 1 2 Rp 1 2 WATER INLET AND OUTLET All pipe work must be cleared of fore...

Page 49: ...IF INSTALLED The pipe work between the solar storage tank and an in series booster has a minimum recommended pipe size of DN20 MUST BE of copper and be fully insulated with a closed cell type insulation or equivalent and in accordance with the requirements of AS NZS 3500 4 The insulation must be weatherproof and UV resistant if exposed The insulation must be fitted up to the connections on both th...

Page 50: ...e electrical cover of the water heater 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 The maximum length of 9 metres for a drain line is reduced by 1 metre for each additional bend required of greater than 45 up to a maximum of...

Page 51: ... block and earth tab connection ensuring there are no excess wire loops inside the front cover 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 control the boosting periods and help maximise solar savings Refer to Booster Control on page 52 Th...

Page 52: ...ousehold with the end of the period to coincide with the commencement of the evening hot water usage a second period such as prior to the morning hot water usage may be necessary check with the householder to enable a boosting period of not less than the recommended continuous length of time for boosting and for a period when power will be available for the booster heating unit to operate The reco...

Page 53: ...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 54: ...ld must leave from the opposite end to which the cold water line enters the manifold 3 The solar storage tanks must be of the same model 4 The cold water line cold and hot water headers and hot water line must be sized to meet the requirements of both AS NZS 3500 4 and the application 5 A non return valve isolation valve and if required a pressure limiting valve and expansion control valve must be...

Page 55: ...MULTIPLE INSTALLATIONS 55 RHEEM COMMERCIAL SOLAR THERMOSIPHON DOUBLE ARRAY RHEEM COMMERCIAL SOLAR HILINE DESIGN DOUBLE ARRAY TPR Valve Drain Line Common Discharge Point ...

Page 56: ...water heater and the timer if one is installed Upon completion of the installation and commissioning of the water heater leave this guide with the householder or responsible officer INSTALLATION CHECKLIST Prior to handover complete the final check list 1 Air bled from taps 2 System checked for water and glycol leaks 3 Cold and hot water piping checked for water leaks 4 Roof tiles put back into pos...

Page 57: ...non toxic the following first aid advice and procedures should be followed if the closed circuit concentrate comes into human contact or is spilt Swallowed give milk or water and seek medical attention Eyes flush with flowing lukewarm water Skin remove contaminated clothing and wash skin with water and soap Inhaled seek fresh air rest and keep warm Spilt immediately remove contaminated clothing st...

Page 58: ...ther 500 ml of water to flush the closed circuit concentrate through the hose and into the collector Close the Service Valve or remove the hose and refit the screw into the Fill Plug Assembly Insert the 200 kPa pressure relief valve into the vent socket and secure with the retaining clip Pressurise the closed circuit system up to 170 kPa and leave for ten minutes Check the system for leaks at all ...

Page 59: ... the Water Heater on page 56 Close all hot water taps 52H RLX Series Operate the closed circuit pressure relief valve on the right side of the solar storage tank to relieve the pressure from the closed circuit Warning Relieved air or closed circuit fluid may be hot Operate the temperature pressure relief valve release lever on the left hand side of the solar storage tank do not let the lever snap ...

Page 60: ...llectors may be of a very high temperature Note The closed circuit fluid discharged from the solar collectors can render the water in a rain water tank unusable and should be diverted away from any rainwater tank connected to the roof Operate the closed circuit pressure relief valve on the right side of the solar storage tank to relieve the pressure from the closed circuit Warning Relieved air or ...

Page 61: ...e from the closed circuit Warning Relieved air or closed circuit fluid may be hot Operate the relief valve 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 52L RL series From the bottom right and top left ends of the solar collectors unscrew and remove the end plugs 52H RLX series Undo the union at the cold wat...

Page 62: ...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 Rheem water heater in its original installed location and any ...

Page 63: ...t cylinder or solar collector free of charge including labour Years 4 to 7 Replacement cylinder or solar collector free of charge Installation and repair labour costs are the responsibility of the owner RL RLX Australis 10 Titan Series Systems if the water heater is installed in a single family domestic dwelling All components Year 2 to 5 Repair and or replacement of the faulty component free of c...

Page 64: ...er heater or if that s unavailable the date of manufacture and serial number from the rating label on the water heater b Rheem will arrange for the water heater to be tested and assessed on site c If Rheem determines that you have a valid warranty claim Rheem 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 warra...

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