Installation Instructions Solar Controller Kit (Part Number 299280) This solar controller kit must be installed and serviced by a qualified person. Please leave this guide with the householder.
The solar water heater and its components are covered by a manufacturer’s warranty. For full manufacturer’s warranty details, refer to the Owners Guide and Installation Instructions supplied with the solar storage tank.
CONTENTS HOUSEHOLDER - This installation instruction booklet is intended for the installer but you may find it of interest. Installation – Solar Control Unit .................................................4 Connections – Plumbing ..........................................................10 Connections – Electrical ...........................................................12 Solar Controller And Solar Monitor .........................................
INSTALLATION – SOLAR CONTROL UNIT SOLAR CONTROLLER KIT The solar water heater is designed for the solar collectors to be roof mounted and the solar storage tank to be installed at ground or floor level. This solar controller kit is designed to be mounted on the side of the solar storage tank incorporating a raised solar hot water inlet. The solar control unit governs the operation of the solar water heater.
INSTALLATION – SOLAR CONTROL UNIT Part No Kit Components and Description - Controller Kit 299280 Qty 126554 Installation instructions solar controller kit 1 052134 Control unit solar pumped assembly 1 220345 Valve assembly air bleed and check consisting of: 1 x 088058 fitting tee brass ½” screwed Rye 4203 1 x 088880 solar non-return valve RMC ½” x ¾” SNR505 1 x 088069 fitting adaptor brass 1” F x ½” M 1 x 220344 air bleed valve RMC ½” x 1” – solar high temp 1 x 087033 washer 30 OD x 20 ID x 2 EPDM 1
INSTALLATION – SOLAR CONTROL UNIT SOLAR STORAGE TANK WITH RAISED SOLAR HOT INLET Numbers in parentheses refer to items on diagram on page 9. Note: The solar control unit automatically controls the flow rate through the collector circuit. This is achieved via the hot and cold sensors and differential controller programming providing control over the operation of the circulator. There is no provision for nor is adjustment to the solar control unit required.
INSTALLATION – SOLAR CONTROL UNIT If this installation utilises selective surface collectors, it may be necessary to use the short sensor lead adaptor, which is supplied taped to the plastic bag containing the hot sensor in the roof kit, to enable the mating of the connections. If the short sensor lead adaptor is not required it can be discarded.
INSTALLATION – SOLAR CONTROL UNIT from solar collectors to solar collectors refer to the installation diagram on page 9 for assembly details of solar cold and hot pipe connections Solar Storage Tank with Control Unit c Boost Single Element - Solar Installation Schemati 8
INSTALLATION – SOLAR CONTROL UNIT SUPPLIED IN SOLAR CONTROL UNIT KIT (299280) 1. 2. 3. 4. 5. 6. 7. 8. 9. Hex nipple ½” X ½” 4 way tee Hex nipple ½” x ¾” Preformed pipe DN15 Compression nut Olive Circulator Solar control unit Screws 10. Cold sensor probe 11. Air bleed valve and solar non-return valve assembly 12. Insulation 400 mm long x 12 mm diam 13. Insulation 150 mm long x 35 mm diam & 50 mm long x 35 mm diam 14. Cable tie 15.
CONNECTIONS – PLUMBING All plumbing work must be carried out by a qualified person and in accordance with the requirements of the Standard AS/NZS 3500.4, and all local codes and regulatory authority requirements. In New Zealand, the installation must conform to Clause G12 of the New Zealand Building Code. CONNECTION SIZES Hot water connection: Rp 3/4. Cold water connection: Rp 3/4. Solar hot (from collector) connection: DN15 compression fitting.
CONNECTIONS – PLUMBING BLEED VALVE DRAIN A copper drain line must be fitted to the bleed valve to carry the discharge clear of the water heater and solar control unit. Connect the drain line to the bleed valve using a disconnection union. The pipe work from the bleed valve to the drain should be as short as possible and fall all the way from the valve with no restrictions. It should have no more than three right angle bends in it. Use DN15 pipe.
CONNECTIONS – ELECTRICAL The power supply to the water heater must not be switched on until the water heater is filled with water and a satisfactory megger reading is obtained. 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 all local codes and regulatory authority requirements. The solar control unit, supplied with a 1.
SOLAR CONTROLLER AND SOLAR MONITOR SOLAR MONITOR A solar monitor is located on the side of the solar control unit and houses a green and a red LED. The green LED, marked “Solar”, indicates the current operational mode of the solar water heater and the red LED, marked “Attention”, may indicate a potential fault mode. The green LED will emit either a constant glow, a constant pulsing or a series of flashes, with a 2 second interval between each series.
SOLAR CONTROLLER AND SOLAR MONITOR If the power supply to the solar control unit is on and the green LED is off or the red LED is flashing, this indicates there may be a fault with the water heater. The red LED may emit from three to six flashes in each series of flashes. A constant glow or pulsing of the red LED does not necessarily mean there is a fault with the system.
SOLAR CONTROLLER AND SOLAR MONITOR The circulator will operate at full speed for approximately fifteen (15) seconds. After fifteen (15) seconds, the solar controller will commence to pulse the circulator to reduce the flow rate through the collector circuit. This will increase the temperature rise across the solar collectors and assist in maximising the system efficiency for the available solar energy. It is normal operation for the circulator to experience a pulsing effect.
Revision Date: 2014 December 126554H 16
