Center CenterStore Solar Series Servicing Installation And Servicing Instructions

Unvented mains pressure solar water heaters. 190, 210, 250 and 300 litre capacity indirect models .

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UNVENTED MAINS PRESSURE SOLAR WATER HEATERS
190, 210, 250 and 300 LITRE CAPACITY INDIRECT MODELS
The CENTERSTORE Solar unvented solar cylinder water heater incorporating immersion heater(s) and thermal
controls Factory fi tted temperature/pressure relief valve l Cold water combination valve assembly l Expansion
vessel and mounting bracket l Tundish l Motorised valve l Compression nuts and olives l Immersion heater spanner
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 14 AND 15 FOR
IMPORTANT INFORMATION WITH RESPECT TO THE BENCHMARK SCHEME

INTRODUCTION

The CENTERSTORE Solar cylinder is a purpose de-
signed 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 insulat-
ed with CFC/HCFC free polyurethane foam to meet the
latest European heat loss requirements (see Table 6).
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.
For latest prices and delivery to your door visit MyTub Ltd - www.mytub.co.uk - info@mytub.co.uk 0844 556 1818
INSTALLATION AND SERVICING INSTRUCTIONS
PACK CONTENTS
l Installation instructions
THE CUSTOMER FOR FUTURE REFERENCE.
THE BENCHMARK SCHEME
Solar
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 Regula-
tions (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 Center CenterStore Solar Series

  • Page 1: Introduction

    Solar UNVENTED MAINS PRESSURE SOLAR WATER HEATERS 190, 210, 250 and 300 LITRE CAPACITY INDIRECT MODELS INSTALLATION AND SERVICING INSTRUCTIONS PACK CONTENTS The CENTERSTORE Solar unvented solar cylinder water heater incorporating immersion heater(s) and thermal controls Factory fi tted temperature/pressure relief valve l Cold water combination valve assembly l Expansion vessel and mounting bracket l Tundish l Motorised valve l Compression nuts and olives l Immersion heater spanner l Installation instructions IMPORTANT: PLEASE READ AND UNDERSTAND ALL THESE INSTRUCTIONS...
  • Page 2: Table Of Contents

    Contents PAGE 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 OTHER INFORMATION.............17 ENVIRONMENTAL INFORMATION.......17 COMMISSIONING CHECK LIST........18 SERVICE RECORD..............19 GUARANTEE...............20 TECHNICAL SUPPORT AND SPARES......20 For latest prices and delivery to your door visit MyTub Ltd - www.mytub.co.uk - info@mytub.co.uk 0844 556 1818...
  • Page 3: General Requirements

    2 pieces of the cold water combination valve assembly • Access to associated controls and immersion (see Fig. 2). Outlets situated higher than the CENTER- heaters must be available to provide for the STORE Solar cylinder will give outlet pressures lower servicing and maintenance of the system.
  • Page 4: Installation-General

    IMPORTANT NOTE: DRAIN TAP CENTERSTORE SOLAR MUST BE INCORPORATED A suitable draining tap should be installed in the INTO A FULLY PUMPED SOLAR PRIMARY CIRCUIT. cold water supply to the CENTERSTORE Solar cylinder CONTROL OF THE SOLAR PRIMARY IS ACHIEVED BY unit between the expansion valve (see Fig.
  • Page 5 Fig. 3: Secondary circulation connection Ø550 Fig. 4: General dimensions AUXILLARY COIL NOMINAL DIMENSIONS (mm) AUXILLARY SOLAR SURFACE RATING RECOVERY CAPACITY VOLUME (kW) SURFACE AREA (mins) (litres) (litres) AREA (m2) 0.61 11.9 1372 803 923 1019 0.68 18.3 1473 925 1095 1184 1009 0.79...
  • Page 6 DISCHARGE PIPEWORK use within buildings and their curtilages, Appen- It is a requirement of Building Regulation G3 that any dix E, section E2 and table 21. discharge from an unvented system is conveyed to b. have a vertical section of pipe at least 300mm where it is visible, but will not cause danger to persons long, below he tundish before any elbows or...
  • Page 7 Subtract the resistance for 4 No. 22mm elbows at 0.8m WARNINGS each = 3.2m • Under no circumstances should the factory fi tted temperature/pressure relief valve be re- Therefore the permitted length equates to: 5.8m moved other than by a competent person. To do so will invalidate any guarantee or claim.
  • Page 8 COLD WATER BALANCED COMBINATION COLD WATER MAINS CONNECTION VALVE EXPANSION WATER SECONDARY RETURN TAPPING T&P RELIEF (2-PIECE) VESSEL (IF REQUIRED) SUPPLY (IF REQUIRED) VALVE TO HOT OUTLETS BOOST ELEMENT/ AUX. CONTROL HOUSING AUX. PRIMARY ISOLATING RETURN VALVE (NOT AUX. PRIMARY SUPPLIED) FLOW SOLAR PRIMARY...
  • Page 9: Installation - Solar Primary

    INSTALLATION - SOLAR PRIMARY CONNECTION TO SOLAR PRIMARY CIRCUIT The lower (solar) coil of the CENTERSTORE Solar cylinder must be connected to a fully pumped solar primary circuit. The connections are suitable for 22mm copper pipe direct to the compression fi ttings provid- ed.
  • Page 10: Installation - Auxillary Heating Coil

    CENTERSTORE Solar cylinder should not exceed 2.5m. AUXILLARY PRIMARY CIRCUIT CONTROL The 2-port motorised valve supplied with the CENTER- STORE Solar cylinder MUST be fi tted to the primary auxillary circuit fl ow to the CENTERSTORE Solar cylinder heat exchanger and wired in series with the indirect thermostat and thermal cut-out fi...
  • 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 For latest prices and delivery to your door visit MyTub Ltd - www.mytub.co.uk - info@mytub.co.uk 0844 556 1818...
  • Page 12: Commissioning

    Switch on the boiler, ensure the programmer The vessel is supplied pre-charged to 3.5 bar to is set to Domestic Hot Water and allow the CENTER- match the control pressure of the pressure re- STORE Solar cylinder to heat up to a normal working ducing valve.
  • Page 13: Maintenance

    DESCALING IMMERSION HEATER(S) MAINTENANCE Before removing the immersion heater(s) the unit must be drained. Ensure the water, electrical supply, MAINTENANCE REQUIREMENTS boiler and solar primary circuit are OFF before Unvented hot water systems have a continuing main- draining. Attach a hosepipe to the drain cock having tenance requirement in order to ensure safe working suffi...
  • Page 14: User Instructions

    The installer is legally required to complete a com- EXPANSION VESSEL CHARGE PRESSURE missioning checklist as a means of complying with Remove the dust cap on top of the vessel. Check the the appropriate Building Regulations (England and charge pressure using a tyre pressure gauge. The pres- Wales).
  • Page 15: Fault Finding And Servicing

    FLOW PERFORMANCE FAULT FINDING AND SERVICING When initially opening hot outlets a small surge in fl ow may be noticed as pressures stabilise. This is quite normal with unvented systems. In some areas cloudi- IMPORTANT • ness may be noticed in the hot water. This is due to After servicing, complete the relevant aeration of the water, is quite normal and will quickly Service Interval Record section of the Bench-...
  • Page 16 Fig 12: Spares Diagram For latest prices and delivery to your door visit MyTub Ltd - www.mytub.co.uk - info@mytub.co.uk 0844 556 1818...
  • Page 17: Other Information

    WARNING FAULT FINDING The Fault Finding chart ( Table 5 ) will enable operation- al faults to be identifi ed and their possible causes recti- DO NOT TAMPER WITH ANY OF THE SAFETY VALVES fi ed. Any work carried out on the CENTERSTORE Solar OR CONTROLS SUPPLIED WITH THE CENTERSTORE cylinder water heater and its associated controls MUST SOLAR CYLINDER AS THIS WILL INVALIDATE ANY...
  • Page 18: Commissioning Check List

    For latest prices and delivery to your door visit MyTub Ltd - www.mytub.co.uk - info@mytub.co.uk 0844 556 1818...
  • Page 19 For latest prices and delivery to your door visit MyTub Ltd - www.mytub.co.uk - info@mytub.co.uk 0844 556 1818...
  • Page 20: Service Record

    GUARANTEE The CENTERSTORE Solar stainless steel vessel carries a full 25 year parts guarantee against faulty manufacture or materials provided that: • It has been correctly installed as per the instructions contained in the instruction manual and all relevant Codes of Practice and Regulations in force at the time of installation. •...

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