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Nova NovaSun 150l Instruction Manual

Direct freeze resistant high pressure solar hot water systems
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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
novasun@solarassist.co.za
www.novasunsolar.co.za
Copyright © 2014 Ikhwezi Solar (Pty) Ltd, Novatherm CC, Solar Assist (Pty) Ltd

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Summary of Contents for Nova NovaSun 150l

  • Page 1 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.

  • Page 2: Table Of Contents

    Contents Introduction ..........................2 System description ........................2 Configurations ........................2 Health and safety ........................2 General ..........................2 Installation considerations ....................2 System configurations ........................ 3 Novasun Thermosiphon System .................. 3 Novasun Split-pumped System ..................3 Frost, scaling and hail resistance, stagnation................4 Hail resistance .......................

  • Page 3: Introduction

    SANS 10142 - The wiring of premises. Part 1 - Low-voltage Energy Model Q-Factor* Rating** installations. SANS 10400 - Parts A, B, L, XA. NovaSun 150l 11.8 Occupational Health and Safety Act (Act 85 of 1993) NovaSun 200l 16.3 National Buildings Regulations Act 103 of 1977 NovaSun 300l 27.5...

  • Page 4: System Configurations

    Assess site specific risks and eliminate or reduced to an acceptable level so as to satisfy health and safety requirements, prior to A thermo-siphon can be close-coupled or split as illustrated below, provided installation. there is sufficient roof space. Water temperature can reach boiling point and the collector can reach stagnation temperatures of over 70°C.

  • Page 5: Frost, Scaling And Hail Resistance, Stagnation

    Frost, scaling and hail resistance, stagnation practice regardless of type of system, as the water will affect other household appliances in any event. 5.1 Hail resistance In the event collectors experience scale build-up the performance NovaSun collectors are hail resistant with 4mm toughened glass and have of the system will decrease.

  • Page 6: Tilt Angle

    6.3 Tilt angle In respect of the optimum angle of inclination for a solar collector, the rule 7.2 System mounting methods of thumb provides that the latitude of the location is taken and then 10° 7.2.1Suggested method 1 - General purpose installation brackets added thereto.
  • Page 7 7.2.3Suggested method 3 alternate installation brackets Geyser Brackets 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. Description: Profiled aluminium plating providing a solid footing NovaSun tanks are equipped with extra anchor points on the distributing the weight of the unit over the roof covering.

  • Page 8: Mounting Process

    Mounting process 8.1 Suggested mounting method 1 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 Connect hanger bracket (D) to strapping (C), allowing enough length side of the collector is recommended (i.e.

  • Page 9: Suggested Mounting Method 2

    In respect of the geyser, stainless steel strapping can be hooped around the geyser, on either end of the cylinder, using commercially available strap clamping ystems or other secure means of completing the hoop, leaving enough length to pass the tail pieces under the tiles and secured around the appropriate woodwork with appropriate fixings.

  • Page 10: Geysers

    All pipework must be properly insulated, including at least two metres of the Power should not be applied to an empty electric water heater as heating cold feed to and hot supply from the geyser. Insulation material must be elements will be damaged. Tank warranties would be void in these heat tolerant and UV resistant, nor must it unduly compress or cause circumstances.
  • Page 11 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 Copyright © 2014 Ikhwezi Solar (Pty) Ltd, Novatherm CC, Solar Assist (Pty) Ltd...

  • Page 12: System Commissioning

    10. System commissioning 10.1 Commissioning direct systems Make sure that the solar radiation is low during filling. In strong radiation it is possible for steam to form in the collector. Keep the collector covered throughout installation and commissioning. Do not turn on the electric backup until the tank has been filled with water.

  • Page 13: System Selection And Sizing

    12. System Selection and Sizing 12.1 Introduction 12.3 System type Individuals purchase solar hot water systems for System type can relate to a number of system many reasons. Some buy to realise savings on their characteristics as follows: energy spend, others out of concern for the Direct vs.

  • Page 14: Owners Operating And Maintenance Instructions

    13. Owners operating and maintenance Time-clock settings should, generally instructions speaking, be set for two hours in the morning and two hours in the evening. For example, if 13.1 Introduction you bath at 06h30 and 18h00, set your time- clock for 04h00 to 06h00 and again for 15h00 Dear Customer, to 17h00.

  • Page 15: Over-Night Temperature Stabilisation

    Once you get used to the system and its transfers some of its heat to the cooler water optimum performance pattern, you may in the lower section of the cylinder. eventually completely switch the electrical This effect is often perceived as heat loss, but backup off, particularly in summer months.

  • Page 16: Freeze Protection Liquid

    conventional electric geysers and solar systems. To dissipate this gas safely, it is recommended that a sink hot tap be turned on for several minutes. Do not use a dishwasher, clothes washer or other appliance for this purpose. During this procedure there must be no smoking, open flames or any electrical appliance operating nearby.
  • Page 17 SCREEN 3: Program Timer On/Off The timer programme is bypassed using this screen. Press the “Bypass On’’ button to bypass the 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.

  • Page 18: Owner Maintenance

    Backup heating is generally preferable during safe operation of the geyser and should be late afternoon and early morning, so that inspected twice yearly. maximum use of solar energy during the day The temperature pressure (TP) valve is near is taken advantage of. the top of the water heater and is essential The backup should not be set that it is on that this valve operates safely.

  • Page 19: Troubleshooting

    Warning The time clock is operational and has been programmed correctly. When inspecting your system please bear the The electric meter and/or display light on the following in mind: time clock speeds up when the time clock is active. The removal of the electrical cover plate on the Power has been provided to the main board solar geyser will expose 220 V wiring.

  • Page 20: Warranty Services: (Log Warranty Services)

    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: Copyright © 2014 Ikhwezi Solar (Pty) Ltd, Novatherm CC, Solar Assist (Pty) Ltd...

This manual is also suitable for:

Novasun 200lNovasun 300l

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