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UNVENTED MAINS PRESSURE SOLAR WATER HEATERS
170 TO 300 LITRE CAPACITY DIRECT AND INDIRECT MODELS
INSTALLATION AND SERVICING INSTRUCTIONS
The POTTERTON GOLD SOLAR unvented solar cylinder water heater incorporating immersion heater(s) and
thermal controls Factory fitted temperature/pressure relief valve l Cold water combination valve assembly l
Expansion vessel and mounting bracket l Tundish l Motorised valve (indirect models only) l Compression nuts and
IMPORTANT: PLEASE READ AND UNDERSTAND ALL THESE INSTRUCTIONS
BEFORE COMMENCING INSTALLATION. PLEASE LEAVE THIS MANUAL WITH
Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers
are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in
accordance with the manufacturer's instructions by competent persons and that it meets the requirements of
the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with
Building Regulations and should be provided to the customer for future reference.
Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark
Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote
the Scheme. Visit www.centralheating.co.uk for more information.
IMPORTANT NOTE TO USER: PLEASE REFER TO THE USER INSTRUCTIONS SECTION ON PAGES 22 AND 23 FOR
IMPORTANT INFORMATION WITH RESPECT TO THE BENCHMARK SCHEME
INTRODUCTION
The POTTERTON GOLD SOLAR cylinder is a purpose
designed unvented solar water heater. The unit has a
stainless steel inner vessel, which ensures an excellent
standard of corrosion resistance. The outer casing is
a combination of resilient thermoplastic mouldings
and corrosion proofed steel sheet. All products are
insulated with CFC/HCFC free polyurethane foam to
meet the latest European heat loss requirements (see
Table 6 Page 19).
The unit is supplied complete with all the necessary
safety and control devices needed to allow connection
to the cold water mains. All these components are
preset and not adjustable.
PACK CONTENTS
olives l Immersion heater spanner l Installation instructions
THE CUSTOMER FOR FUTURE REFERENCE.
THE BENCHMARK SCHEME
This appliance complies with the requirements of the
CE marking directive and is Kiwa approved to show
compliance with Building Regulations (Section G3).
The following instructions are offered as a guide to
installation which must be carried out by a competent
plumbing and electrical installer in accordance with
Building Regulation G3, The Building Standards
(Scotland) Regulations 1990, or The Building
Regulations (Northern Ireland).
NOTE: Prior to installation the unit should be stored in
an upright position in an area free from excessive damp
or humidity.
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Summary of Contents for Benchmark POTTERTON Gold
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Page 1: Introduction
Building Regulations and should be provided to the customer for future reference. Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme. -
Page 2: Table Of Contents
Contents INTRODUCTION..............1 GENERAL REQUIREMENTS..........3 INSTALLATION-GENERAL..........4 INSTALLATION - SOLAR PRIMARY.......9 INSTALLATION - AUXILLARY HEATING COIL...10 COMMISSIONING.............12 MAINTENANCE..............13 USER INSTRUCTIONS............14 FAULT FINDING AND SERVICING.........15 HEAT LOSS ................19 ENVIRONMENTAL INFORMATION.......19 COMMISSIONING CHECK LIST........20 SERVICE RECORD..............21 GUARANTEE...............24 TECHNICAL SUPPORT AND SPARES......24... -
Page 3: General Requirements
THEIR SAFETY. CHILDREN MUST BE SUPERVISED. guarantee high flow rates. GENERAL REQUIREMENTS SITING THE UNIT The POTTERTON GOLD SOLAR must be installed verti- cally. Although location is not critical, the following Wherever possible the mains supply pipe should be points should be considered: 22mm. -
Page 4: Installation-General
3/4”BSP male parallel should threaded pipe expansion vessel must be connected between the connections be required. expansion valve (see Fig. 2) and the POTTERTON GOLD SOLAR cylinder (see Fig. 6 Page 8). The location of the COLD FEED expansion vessel should allow access to recharge the... - Page 5 OUTLET The hot water outlet is a 22mm compression fitting located at the top of the cylinder. Hot water distribution pipework should be 22mm pipe with short runs of 15mm pipe to terminal fittings such as sinks and basins. Pipe sizes may vary due to system design.
- Page 6 DISCHARGE PIPEWORK Note: To comply with the Water Supply (Water Fittings) Regulations, the tundish should incorporate a suitable air It is a requirement of Building Regulation G3 gap. that any discharge from an unvented system is conveyed to where it is visible, but will not 3.55 Any discharge should be visible at the tundish.
- Page 7 • The cold water combination valve assembly must be fitted to the mains water supply to the Worked example of discharge pipe sizing POTTERTON GOLD SOLAR cylinder. • No control or safety valves should be tampered Fig. 5 is for a G1/2 temperature relief valve with a with or used for any other purpose.
- Page 8 Safety device (e.g. Temperature relief valve) Metal discharge pipe (D1) from Temperature relief valve to tundish 600mm maximum Tundish Discharge below 300mm fixed grating minimum (Building Regulation G3 section 3.61 gives alternative points of discharge) Discharge pipe (D2) from tundish, Fixed grating with continuous fall.
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Page 9: Installation - Solar Primary
Fig.7 Electrical Connections (Schematic) INSTALLATION - SOLAR PRIMARY CONNECTION TO SOLAR PRIMARY CIRCUIT The lower (solar) coil of the POTTERTON GOLD SOLAR cylinder must be connected to a fully pumped solar primary circuit. The connections are suitable for 22mm copper pipe direct to the compression fittings provided. -
Page 10: Installation - Auxillary Heating Coil
The boiler should have a control thermostat and non DO NOT operate the immersion heaters until the self-resetting thermal cut-out and be compatible with POTTERTON GOLD SOLAR has been filled with water. unvented storage water heaters. Where use of a boiler without a thermal cut-out is SAFETY unavoidable a “low head”... - Page 11 Fig. 9: Schematic wiring diagram - Basic 2 x 2 port valve system Fig.10: Schematic wiring diagram - 3 port mid position valve system. N.B. Must be used in conjunction with 2 port zone valve supplied...
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Page 12: Commissioning
At the time of commissioning, please ensure all relevant heater(s) and allow the POTTERTON GOLD SOLAR to sections of the Benchmark Checklist, ( Page 20 and 21 ) heat up to normal working temperature (60ºC recom- of this document, are completed. -
Page 13: Maintenance
A key spanner manually opened to ensure no blockage has occurred is supplied with the POTTERTON GOLD SOLAR in the valves or discharge pipework. Similarly cleaning cylinder for easy removal/tightening of the immersion of the strainer element and replacement of the air heater(s). -
Page 14: User Instructions
Please ensure that the installer has fully completed the These controls must be wired in series with the 2-port Benchmark Checklist on Page 20 of this manual and that motorised zone valve supplied to interrupt the flow you have signed it to say that you have received a full of primary water around the heat exchanger coil and clear explanation of its operation. -
Page 15: Fault Finding And Servicing
FAULT FINDING AND SERVICING IMPORTANT • After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist located on page 20 and 21 of this document. • Servicing should only be carried out by... - Page 16 SPARE PARTS A full range of spare parts are available for the POTTERTON GOLD SOLAR cylinder range (See Table 4). Refer to the technical data label on the unit to identify the model installed and ensure the correct part is ordered. You will need to quote the serial number and the guarantee code, which are printed on the data label.
- Page 17 Fig 12: Spares Diagram...
- Page 18 DO NOT TAMPER WITH ANY OF THE SAFETY VALVES causes rectified. Any work carried out on the OR CONTROLS SUPPLIED WITH THE POTTERTON POTTERTON GOLD SOLAR cylinder water heater GOLD SOLAR CYLINDER AS THIS WILL INVALIDATE and its associated controls MUST be carried out by...
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Page 19: Heat Loss
C and a stored water temperature of 65 While the following Checklist can be used for any installation covered by its description, only appliances manufactured by Scheme Members will be covered by the rules and requirements of the Benchmark Scheme. -
Page 24: Guarantee
POTTERTON GOLD Brooks House, Coventry Road, Warwick, CV34 4LL Tel: 0844 871 1532 The policy of POTTERTON GOLD Solar is one of continuous product development and, as such, we reserve the right to change specifications without notice. 36006078 Issue 04...
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