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Benchmark ACCOLADE 2000 Design, Installation And Servicing Instructions

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2000
2000
ACCOLADE
ACCOLADE
DESIGN, INSTALLATION AND

SERVICING INSTRUCTIONS

PLEASE LEAVE THESE INSTRUCTIONS IN THE POCkET PROVIDED ON
THE bACk Of THE fRONT PANEL
benchmark
TM
An unvented hot water storage unit complying with the
The code of practice for the installation,
requirements of Building Regulations Approved Document G3.
commissioning & servicing of central heating systems
Please read these instructions before commencing
installation and on completion leave adjacent in the pocket on
the back of the appliance front panel.
In the interest of continuously improving the Accolade
2000
range,
Gledhill Water Storage Ltd reserve the right to modify the product
without notice, and in these circumstances this booklet, which is
accurate at the time of printing, should be disregarded.

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  • Page 1: Servicing Instructions

    SERVICING INSTRUCTIONS PLEASE LEAVE THESE INSTRUCTIONS IN THE POCkET PROVIDED ON THE bACk Of THE fRONT PANEL benchmark An unvented hot water storage unit complying with the The code of practice for the installation, requirements of Building Regulations Approved Document G3.
  • Page 2 The code of practice for the installation, commissioning & servicing of central heating systems As part of the industry wide “Benchmark” Initiative all Gledhill Accolades now include a Benchmark Installation, Commissioning and Service Record Log Book. Please read carefully and complete all sections relevant to the appliance installation. The details of the Log Book will be required in the event of any warranty work being required.
  • Page 3 Water Supply Regulations, Building Regulations and relevant NHBC requirements. 3. As the Accolade 2000 is an unvented appliance it should not be used where steam is the primary heating medium, or with solid fuel boilers, or in situations where annual inspection/maintenance is likely to be neglected.

  • Page 4: Important Notices

    Choose one person to call the signals • Lift from the hips at the same time, and then raise the unit to the desired level. As part of the industry wide ‘Benchmark’ • Move smoothly in unison. initiative all Accolade 2000 appliances now include a Benchmark Installation, The appliance is supplied shrink wrapped on a timber installation base.
  • Page 5 1.0 DESIGN 1. 1 INTRODUCTION Description The Accolade 2000 is a floor standing packaged mains pressure unvented hot water appliance and uses a twin copper cylinder configuration which ensures that all the water content is heated to a uniform temperature as well as reducing the risk of legionella and corrosion.

  • Page 6: Technical Data

    1.0 DESIGN 1.2 TECHNICAL DATA t i f t i f l n i t s i t a l , r o , r e f e i & f e i , e l - i t c i t ) s ( c i t l i o...
  • Page 7 1.0 DESIGN 1.2 TECHNICAL DATA Indirect model photo figure 1.1 Direct model photo - T.b.A. when available figure 1.2 Page 7...
  • Page 8 1.0 DESIGN 1. 2 TECHNICAL DATA Model Selection Guide General selection criterion is shown in Technical Data table 2.1. However, before selecting the model, the hot water requirements of the dwelling should be correctly assessed. If the appliance is to be installed in a cupboard, then the minimum dimensions and clearances specified in figure 1.4 must be observed.
  • Page 9 1.0 DESIGN 1.2 TECHNICAL DATA Primary heat exchanger (i.e. coil) pressure loss of Accolade 2000 Models a. General technical and performance data of the Accolade 2000 range is given in table 2.1. b. The indirect models are fitted with high...
  • Page 10 1.0 DESIGN 1. 2 TECHNICAL DATA Primary expansion vessel Feed & expansion " " circuit 350mm min. " " " " " " " " " " Note: The appliance dimensions do not allow for the 100mm base. " " "...
  • Page 11 1.0 DESIGN 1. 2 TECHNICAL DATA Electricity Supply Only one mains supply rated at 16A, 230V~, 50Hz is required for the indirect models. All indirect models have a 3kW electric immersion heater for hot water backup in case of boiler failure. The immersion heater and boiler circuits are fused internally.
  • Page 12 1.0 DESIGN t i l E · l l u y t i t i l t i l c i t t i l l n i l n i a i l t a l e . i &...

  • Page 13: System Details

    The Accolade 2000 is fitted with a pressure regulating valve set to provide a static operating pressure of 1.5 bar. On this basis there must be at least 2.0 bar pressure at the inlet to the appliance.
  • Page 14 1.0 DESIGN 1.3 SYSTEM DETAILS c. As a general guideline, although a 15mm service my be sufficient for smaller with the appliance ie 1.5 bar static) and dwellings with one bathroom, a 22mm service (25mm MDPE) is preferred and not taken from the appliance. When a should be the minimum for larger dwellings.
  • Page 15 Hot water return pipework Single check valve/non return valve - should be fitted Dead leg volumes and secondary hot water as close as possible to the Accolade 2000 appliance circulation If the dead leg volume of the hot water draw-off...
  • Page 16 1.0 DESIGN 1.3 SYSTEM DETAILS Space Heating System Design (Indirect models only) General Warning: Accolade 2000 is an unvented hot water storage appliance and therefore it is not suitable for use with a solid fuel boiler, steam or any other uncontrolled heat source.
  • Page 17 (e.g. garage, outhouse and ventilated roof space), a frost thermostat(s) only or space heating only are on is shown in must be fitted and wired as shown in section 5. The Accolade 2000 appliance should figures 1.6 and 1.7 respectively. The net pump not be installed in a location where the contents could freeze.
  • Page 18 1.0 DESIGN 1.3 SYSTEM DETAILS Pressure gauge and filling loop Primary The pressure gauge and the filling loop should be fitted at the system filling point which it is recommended should be adjacent to the boiler. There shall be no permanent connection to the mains water supply for filling the system, even through a non-return valve without the approval of the Local Water Authority.
  • Page 19 1.0 DESIGN 1.3 SYSTEM DETAILS Cold feed/expansion and safety/open vent Open vented heating system The cold feed connection is provided at the top Open vented system kit of the appliance. The safety/open vent should be connected into the boiler flow pipe ensuring The ‘-OV’...
  • Page 20 1.0 DESIGN 1.3 SYSTEM DETAILS In apartment/flat situations the discharge pipes can be connected into a single pipe which is discharged at low level. In this case the number should be limited to 6 to allow the fault to be easily traced.

  • Page 21: Installation

    (SS model). This will often be on top of the appliance itself or at high level in the cupboard housing the Accolade 2000. The dimensions and clearances are provided in section 1.2 Technical Data. The location will need...
  • Page 22 2.0 INSTALLATION 2.2 INSTALLATION Preparation/placing the appliance in position Details of the recommended positions for termination of the first fix pipework are provided in section 1.2 Technical Data. The pipework can be located or its position checked using the template provided with each appliance.
  • Page 23 2.0 INSTALLATION 2.2 INSTALLATION Pipework connections The position of the pipework connections is shown opposite . The connection sizes and dimensions are listed in Section 1.2 Technical Data. All the connections are also labelled on the appliance. It is essential that the pipework is connected to the correct connection.
  • Page 24 It is normally envisaged that the feed and expansion cistern/expansion vessel will be located in the same cupboard as the Accolade 2000 appliance. In the case of the OV model this will allow a dry roof space.
  • Page 25 2.0 INSTALLATION 2.2 INSTALLATION Page 25...
  • Page 26 2.0 INSTALLATION 2.2 INSTALLATION Page 26...
  • Page 27 2.0 INSTALLATION 2.2 INSTALLATION Schematic wiring diagram of Direct Accolade ( Ver : 260603) 2000 Ranco OHT_1 Ranco OHT_1 BOTOM BOTOM On-Peak IH -Peak IH Off-Peak IH Off-Peak IH L SL L SL ON-PEAK OFF-PEAK Supply Supply 230V~, 16A, 50Hz 230V~, 16A, 50Hz Wiring Diagram - Direct Model Page 27...
  • Page 28 This must be removed if a room thermostat is fitted. Electrical Connection - Direct Appliance The Accolade 2000 is pre-wired to 2 x 3 way terminal strip and plumbers are well able to complete the electrical installation provided they adhere strictly to the IEE Requirements for Electrical Installations BS 7671.
  • Page 29 2.0 INSTALLATION 2.2 INSTALLATION Before commencing the electrical work check that the power source is in accordance with section 1.2 Site Requirements and ensure that it is isolated. When installing the indirect unit the boiler manufacturers wiring instructions should be read in conjunction with this manual.

  • Page 30: Heating System

    Data. Primary Water System Treatment Although the Accolade 2000 has no special water treatment requirements, the radiators and other parts of the circuit will benefit from the application of a scale and corrosion inhibitor such as Sentinel X100 or a Protector such as Fernox MB1.
  • Page 31 This product is covered by the ‘benchmark’ scheme and a separate commissioning/ service log book is included with this product. This must be completed during...
  • Page 32 DO check that all plumbing and electrical connections are in accordance with the labelling on the unvented storage appliance. DO insulate any exposed pipework in the Accolade 2000 cupboard. DO plumb the overflow/warning pipe (if fitted) in a 20mm internal diameter pipe material which is suitable for use with a heating F &...

  • Page 33: Annual Servicing

    ) s r i l p . e l 3.2 CHANGING COMPONENTS i t i The KIWA Approvals for the Accolade 2000 appliance are conditional on the specific manufacturer/type of components fitted t i f and any replacements must be purchased...

  • Page 34: Short Parts List

    3.0 SERVICING 3.3 SHORT PARTS LIST i r c l i c l n I l l e & C º l l e l l e l l e l l e l l e l l e c i t l i Z r t i ) e l...
  • Page 35 3.0 SERVICING 3.3 SHORT PARTS LIST 13/14 Page 35...

  • Page 36: Fault Finding

    3.0 SERVICING 3.4 fAULT fINDING SCALE DISCHARGE fROM RELIEf VALVES In hard water areas, above 200ppm (mg/l) it is recommended that an in-line scale If cold water is discharging from the expansion inhibitor is fitted. Reducing the temperature of the stored water will reduce the rate relief valve drop the system pressure and check at which scale forms.

  • Page 37: Water Savings

    APPENDIX A WATER SAVINGS WATER RELATED COSTS CAN bE REDUCED bY GOOD PLUMbING PRACTICE. TAPS & MIXERS 2 TAP 5, 6 OR HALF OPEN OVER 8 L/M 20 L/M Unregulated Fitted with regulator SHOWERS 4 fIXING OPTIONS fOR TAPS & MIXERS 1.
  • Page 38 APPENDIX b MANIfOLDS Two sets of manifolds are available as an Manifold type: 1 - Stock Code MIP 050 optional extra. Each set comprises a separate (one bathroom, one en suite shower room, one cloakroom, one kitchen) hot and cold water manifold. Both are Flow regulator Terminal fitting Hot water manifold...
  • Page 39 APPENDIX b The pressure loss through a flow regulator at the designated flow rate is about 1.8 bar. Therefore for the flow regulator to control the flow rate at pre-set level, the inlet pressure must be greater than 1.8 bar. If the inlet pressure is lower, the flow rate will be correspondingly less than the pre-set values.
  • Page 40 NOT REQUIRED at pressures below 5 bar unless any system See Note 1 components have a lower maximum working Airing pressure Scale cupboard inhibitor NOT REQUIRED Accolade 2000 Kitchen sink Mains supply En-Suite Kitchen Double check valve NOT REQUIRED Check valve Toilet Hand...
  • Page 41 (vi) The benchmark log book is completed after each sold between the date of receipt of order and the date of receipt of payment in full; and annual service.
  • Page 42 of three years from the date of delivery Gledhill will replace, free of charge, any plate heat exchanger fitted in recovering any such goods the property in which the appliance as original equipment in which scale formation occurs that materially reduces the effectiveness has remained in us under paragraph (2) above.

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