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Instruction Manual

for the Installation and Maintenance of

NovaSun Direct Freeze Resistant

High Pressure Solar Hot Water Systems

(October 2013)

For use by trained qualified personnel only. Applicable to the following models:

Novasun, Direct Freeze Resistant, 150l, 200l, 300l

We reserve the right to change the installation instructions.

Reproduction, even partial, is only allowed with written permission.

WE Geysers (Pty) Ltd ,7 Nelmapius Street,

Chamdor, Krugersdorp, 1754

[email protected]

www.novasunsolar.co.za

Содержание NovaSun 150l

Страница 1: ...ter Systems October 2013 For use by trained qualified personnel only Applicable to the following models Novasun Direct Freeze Resistant 150l 200l 300l We reserve the right to change the installation instructions Reproduction even partial is only allowed with written permission WE Geysers Pty Ltd 7 Nelmapius Street Chamdor Krugersdorp 1754 novasun solarassist co za www novasunsolar co za ...

Страница 2: ...ing process 7 8 1 Suggested mounting method 1 7 8 2 Suggested mounting method 2 8 9 System Installation 8 9 1 General installation technique 8 9 2 Cylinder and System plumbing 8 9 3 Geysers 9 9 4 Electrical connection 9 9 5 Installation Diagrams 9 Pumped System Installation Diagram 9 10 System commissioning 11 10 1 Commissioning direct systems 11 11 Installation checklist 11 12 System Selection an...

Страница 3: ...ty Ltd does not accept liability or responsibility for the final fitness of water for consumption from this water heater as the water quality is not affected by the system and is a function of the municipal and or other water supply This manual has been written with the intention of ensuring that the system is correctly installed and that the owner user is fully conversant with the best methods of...

Страница 4: ... the natural circulation of fluid between the collector and the geyser In order for the thermo siphon process to occur the geyser must be placed in a higher position than the solar collector The system operates according to the laws of thermal dynamics i e a liquid when heated becomes less dense and rises above the denser cooler liquid Heated water rises up through the collector and into the geyse...

Страница 5: ...mixed in a glycol to water ratio of 1 3 i e 33 glycol 5 4 Scale resistance Indirect systems containing a glycol solution also prevents scale build up inside the collector in areas of poor water quality It is important to note that the geyser itself may still be affected by water quality as would be the case with any conventional enamel lined geyser unless a Solartherm PEX lined geyser is used If a...

Страница 6: ... Ensure that the roof covering material is structurally sound to receive the weight of the system In the case of a split system installation a wooden frame should be constructed which raises the tank above the level of the collectors Care should be taken in the design and construction of this frame so as to ensure it meets all relevant standards 7 Mounting methods 7 1 Selection of appropriate moun...

Страница 7: ...f covering is then placed back into original position c The bracket is placed underneath the geyser foot plate with the bolt sliding through the slotted hole and tightened using the wing nut as supplied d Note the correct use of left hand and right hand bracket Attached strapping is then tightened onto the timber structure in the same way as above NovaSun tanks are equipped with extra anchor point...

Страница 8: ...le leaks The collector is positioned into the collector bracket as demonstrated in the image above A slight kick of 25mm from the cold inlet side to the hot outlet side of the collector is recommended i e cold side lower than hot side by 25mm In the case of sheet roofing as depicted in the following image a roof screw can be removed the strap placed over the existing hole and the roof screw reinse...

Страница 9: ...hat the drain cock is at the lowest point of the tank Once the tank is in place fix the hoop in place and replace tiles 9 System Installation 9 1 General installation technique During fitting and prior to filling the system must be protected against the entry of dirt and water After the system has been mounted it must be flushed in order to remove any debris e g metal chips packaging residue sawdu...

Страница 10: ...s which require regular servicing as well as allowing for the required SANS height of vacuum breakers above the tank 9 4 Electrical connection All electrical work must be carried out by properly qualified and registered electricians Novasun recommends the installation of a time switch when undertaking a solar installation This optimises the performance of the system and is specifically required wh...

Страница 11: ...CC Solar Assist Pty Ltd 10 Pumped Controller Geyserwise System Acknowledgment Geyserwise Installation Manual For purpose of Pump controller installation and wiring instruction refer to the Geyserwise Installation manual or go to www geyserwise co za ...

Страница 12: ...o pressurise Check all piping joints and fittings for water leaks Check pressure relief valves to ensure correct operation Turn on the electric backup element Make sure the tank is completely filled before turning on the element Ensure power is available to the backup element Ensure the time clock has been correctly set 11 Installation checklist The following checklist should be observed by the in...

Страница 13: ...ken per day and how many litres are used how many baths are taken and size of baths how much hot water goes towards washing dishes and doing laundry etc Only once this information is analysed can a final recommendation be made on system size 12 3 System type System type can relate to a number of system characteristics as follows Direct vs Indirect refer section 5 above Close coupled vs Split refer...

Страница 14: ...ar system Time clock settings should generally speaking be set for two hours in the morning and two hours in the evening For example if you bath at 06h30 and 18h00 set your time clock for 04h00 to 06h00 and again for 15h00 to 17h00 Ensure backup time periods do not coincide with localised load shifting by municipalities employing ripple relay devices This will ensure that if there was not sufficie...

Страница 15: ...e cylinder transfers some of its heat to the cooler water in the lower section of the cylinder This effect is often perceived as heat loss but is actually the redistribution of stored heat more evenly over the entire contents of the storage tank This may make it necessary to use the electric element to raise the water in the top section of the cylinder back to an acceptable temperature Over night ...

Страница 16: ...switched off i e approximately 72 hours depending on the model 13 6 Freeze protection liquid No freeze protection liquid is used in the Novasun system 13 7 Setting the time clock WE Geysers Pty Ltd recommends that an SABS approved time clock with battery backup be installed on the distribution board There are many such time clocks on the market and the operation of which are all relatively similar...

Страница 17: ...e timer and provide the geyser with a constant supply The Bypass on display flashes Press the Bypass Off button for power to be controlled by the timer and switch on according to the set times Press the function button to return to screen one Note When in Bypass On mode the display will not revert to screen one after 60 seconds Should you be away from home for any extended period and you wish to s...

Страница 18: ...ure valves and tempering valves should be conducted on a solar geyser just as it should be done on any conventional electrical geyser These valves allow for the safe operation of the geyser and should be inspected twice yearly The temperature pressure TP valve is near the top of the water heater and is essential that this valve operates safely It is possible for the valve to release a little water...

Страница 19: ...ll or part of the day Hot water usage has not been excessive Hot water is not leaking from within the plumbing system that feeds hot water to the points of use The time clock is operational and has been programmed correctly The electric meter and or display light on the time clock speeds up when the time clock is active Power has been provided to the main board i e no electrical faults or load she...

Страница 20: ...td 19 17 Warranty Services log warranty services Important Notice Making use of a non accredited Solar Installer to perform warranty work on your Novasun SWH system will void your Warranty Agreement Date Service Provider Contact detail Services Job performed Owner Notes ...

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