Solahart 150RD18 Owner's Manual
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Solahart 150RD18 Owner's Manual

Solar water heaters
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OWNER'S MANUAL
Includes Installation Instructions
SOLAR WATER HEATERS

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Summary of Contents for Solahart 150RD18

  • Page 1 OWNER’S MANUAL Includes Installation Instructions SOLAR WATER HEATERS...
  • Page 2 It is important you read the following safety information and warnings:  This water heater must be installed, operated and maintained in accordance with the manufacturer’s instructions for safety.  This water heater is only intended to be operated by persons who have the experience or the knowledge and the capabilities to do so.

  • Page 3: Here's How It Works

    Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 HERE'S HOW IT WORKS Solahart thermosiphon solar water heaters transfer heat absorbed from the sun by the solar collectors to the water storage tank through natural thermosiphon without the need for pumps or sensors.

  • Page 4: Unvented Systems

    Unvented and Vented Systems The Solahart thermosiphon solar water heater can be installed to operate as an Unvented System or a Vented System. UNVENTED SYSTEMS An unvented system requires an approved Temperature Pressure Relief (TPR) Valve connected to the pressure relief port of the tank.

  • Page 5: System Configurations

    WARNING: Part No. VN0262002K is the only approved TPR for this heater. The use of unapproved TPR valves may lead to tank failures resulting in damage to property and personal injury. The use of unapproved TPR valves will void the Solahart warranty.

  • Page 6: Water Supplies

    The overall performance and energy savings that you will obtain from your Solahart water heater will depend on your hot water usage pattern and the operation of the backup heating unit. A suitably rated timer control switch connected to the power supply can help maximize energy savings with a solar water heater fitted with a backup heating unit.

  • Page 7: Saturation Index

    In a corrosive water supply, the water can attack copper parts and cause them to fail including the heating unit and the collector. Where the saturation index is less than –1.0, the water is very corrosive. If the saturation index is less than –1.0 the Solahart warranty does not apply.

  • Page 8: Maintenance Requirements

    Note: The major service and routine replacement of any components, such as the anode and relief valve(s), 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.

  • Page 9: Installation Instructions

    VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 INSTALLATION INSTRUCTIONS INSTALLATION MUST COMPLY WITH LOCAL ELECTRICAL AND PLUMBING CODES This water heater must be installed: • by a suitably qualified person, and • in accordance with the installation instructions WATER HEATER APPLICATION This water heater is designed for the purpose of heating potable water.
  • Page 10 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 Mounting Options Mounting frame options are available to allow the heater to be installed on a horizontal flat surface such as a concrete slab or a pitched (sloped) roof. Direct Roof Installation with Kit – VN1000005 – This option is designed to be suitable for standard roofs with slope angles between 10°...
  • Page 11 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 DIRECT ROOF INSTALLATION WITH KIT – VN1000005 Please note the following:  The pitch of the roof on which the system is installed must not exceed 30° from a horizontal plane.
  • Page 12 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 Roof fixing instructions: 1. Determine the position of the tank ensuring that the base of the tank is positioned above a roof batten. Refer to Page 8 of the Owner’s Manual for the location, orientation and inclination of the Solar Hot Water Heater.
  • Page 13 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 4. Locate the two Tank to Collector Spacers provided in the Kit against the top end of the collector as shown. 5. Place the tank above the Tank to Collector Spacers such that the rear tab of each spacer is in contact with the edge of the two rectangular slots of the tank base.
  • Page 14 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 INSTALLATION ON A CONCRETE SLAB OR FLAT ROOF USING VN1000002 FRAME KIT COMPONENTS SUPPLIED IN THE KIT BOX 2 x Vertical Rails Part No: VN1000503 2 x Collector Rails Part No: VN1000502...
  • Page 15 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 Frame Assembly Instructions Please note the following:  This frame has not been rated for cyclonic conditions.  The condition of the roof and specific location of the installation on the roof should be assessed by a qualified building practitioner or structural engineer before installing this frame.
  • Page 16 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 After fixing the Base Channels to the concrete slab assemble one side of the frame as instructed in the following sub- sections: 2.1 Connect the Collector Rail to the Base Channel as shown: 2.2 Connect the Vertical Rail to the Base Channel as shown:...
  • Page 17 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 2.4 Connect the Side Brace the to the Collector Rail and Vertical Rail as shown: Repeat the same process to assemble the other side of the frame interconnecting the remaining Base Channels, Collector...
  • Page 18 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 COLLECTOR AND TANK INSTALLATION ON THE FRAME Install the Collector Clamps using M8x25mm Bolts and M8 Nuts at the two locations near the front end of the frame as shown.
  • Page 19 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 Attach the Tank to Collector Spacers to the tank by inserting the locking tabs to the rectangular slots on the front face of the tank base as shown. Then secure the Tank to Collector Spacers to the Tank using two of M6.3x 19mm screws.
  • Page 20 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 THE PIPE KIT CONNECTION Fittings required are as shown (supplied with the kit): Image Part Number Description Quantity NIPPLE COMPRESSION R20M-G20F DR VN0144202 BRASS ADAPTOR M33 (M) TO G3/4 CONETITE...
  • Page 21 The maximum allowed water supply pressure to the water heater is 800kPa. If the supply pressure exceeds this limit, Solahart advises the limiting of water pressure to 800kPa with a pressure limiting valve to suit this solar water heater.
  • Page 22 VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 COLD SUPPLY CONNECTION Cold Pipe Cold Water Line Inlet R3/4 Fitting The cold-water supply line to the water heater must be connected to the Male R¾ brass fitting on the cold pipe as shown in the image above.

  • Page 23: Hot Water Outlet

    VN0930027 Solahart Owner’s Manual – Thermosiphon Systems - Revision 3 Note: The maximum length of 9 m for a drain line is reduced by 1 m for each additional bend of greater than 45°, up to a maximum of three additional bends. Where the distance from the water heater to the final point of discharge exceeds the maximum length, the drain line from the valve may discharge into a tundish.

  • Page 24: Electrical Connection

    Warning: Do not turn power on until the water heater is filled with water or damage to the heating element will result. The power rating and current requirement of your Solahart water heater will be specified on the water heater’s data plate, located on the cover to the electrical cavity.

  • Page 25: Installer's Checklist

    Electrical heating unit circuit fuse or circuit breaker is sound. Electric meter speeds up when the heating unit switch is turned ON after being OFF. Contact your local Solahart Dealer if all of the above have been checked and there is still no hot water.

  • Page 26: Solahart Thermosiphon Solar Water Heater Warranty

    2.1 The decision of whether to repair or replace a faulty component is at Solahart’s sole discretion. 2.2 If you require a call out and we find that the fault is not covered by the Solahart warranty, you are responsible for our standard call out charge.

  • Page 27: What Is Covered By The Solahart Warranty For The Water Heaters Detailed In This Document

    WHAT IS COVERED BY THE SOLAHART WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3.1 Solahart will repair or replace a faulty component of your water heater if it fails to operate in accordance with its specifications as follows:...
  • Page 29 AFFIX INSTALLATION AND WARRANTY REPORT HERE Note: Installation and Warranty report to be produced in quadruplicate on carbon copy paper in the colours indicated...
  • Page 30 Solahart Industries Pty Ltd International Sales (ABN 45 064 945 848) Telephone International Sales: + 61 8 9351 4600 Principal Manufacturing Facility 55 Brodie Street Email: solahart@solahart.com.au Rydalmere, New South Wales, 2116 Australia Web: www.solahart.com Postal Address: PO Box 7508...

This manual is also suitable for:

150rd00Bpt20007

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