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Benchmark Accolade ACA125 IND Design, Installation And Servicing Instructions

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A - C L A S S
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.
In the interest of continuously improving the Accolade
A Class
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.
Supplied By www.heating spares.co Tel. 0161 620 6677

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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: Table Of Contents

    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: Design

    1.0 DESIGN 1.1 INTRODUCTION The Accolade A-CLASS range of floor standing indirectly heated unvented hot water storage appliances is designed to provide domestic hot water at mains pressure. All models are designed for gas or oil fired heating and hot water systems with boiler capacities up to a maximum of 45kW.
  • Page 4 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...
  • Page 5 1.0 DESIGN 1. 1 INTRODUCTION Description The Accolade A-CLASS 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 Table 1.2 Factory fitted and supplied components Models ACA125 IND ACA150 IND ACA180 IND ACA210 IND ACA240 IND Factory fitted and wired standard equipment (see figure 1.1) 1. Mains pressure inlet control group consisting of Non-return valve, Pressure regulator, Strainer, Expansion relief valve and Yes - Non adjustable factory set operating pressure - 1.5 bar balanced cold water outlet...
  • Page 7 1.0 DESIGN 1.2 TECHNICAL DATA Primary Sealed System Kit (optional extra) Open Vented Primary Kit (optional extra) ��� ������ ���������� ��� ��������� ���� ������� ������ ����� ������ �� �� ������� ������� ��������� ��� ����� �� ��� ����� ���� ������ �� ��...
  • Page 8 1.0 DESIGN 1. 2 TECHNICAL DATA Appliance Dimmensions �������� Model Height (A) Width (B) Depth (C) �� ������ ������ ��� ACA125_IND 1080 �� ���� ������ ��� ACA150_IND 1140 “ “ � ��������� �� ���� �� �� �������� ��� ACA180_IND 1370 “...
  • Page 9 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. Appliance Location The Accolade must be installed on a flat A-CLASS surface, which is capable of supporting the weight of the appliance and any other ancillary...
  • Page 10 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 A-CLASS range is given in table 2.1. b. All models are fitted with high performance primary heat exchangers and are supplied with either Grundfos UPS 15-50 or UPS 15-60 factory fitted pumps.
  • Page 11 1.0 DESIGN 1.2 TECHNICAL DATA Accolade A-Class Indirect Models Table 2.1 Technical specification of Accolade A-Class ACA125 IND ACA150 IND ACA180 IND ACA210 IND ACA240 IND Empty Weight (kg) Full Control thermostat (CT) OHT 1 Temperature set-point of thermostats ( P&T Valve IH CT (inside heater head) IH OHT (inside heater head)

  • Page 12: System Details

    flow rate which is recommended for an adequate mains pressure system to any property. In accordance with the Benchmark Guidance Notes (See Appendix C) it is recommended that in areas where the mains cold water can exceed 280ppm total hardness (as defined by BS 7593: 1993 table 2) a scale reduction device should be installed.
  • Page 13 1.0 DESIGN 1.3 SYSTEM DETAILS c. The combination valve also incorporates an expansion relief valve.The discharge c. In typical dwellings, the cold water supply from this can be connected into the discharge pipe from the P & T valve. Further to any mixer fittings (other than dual outlet details of how to treat this discharge are provided later in this manual.
  • Page 14 1.0 DESIGN 1.3 SYSTEM DETAILS Taps and Shower Fittings Dead leg volumes and secondary hot water circulation a. Ensure that all terminal fittings are suitable for mains pressure. Use aerated taps whenever possible to prevent splashing. If the dead leg volume of the hot water draw-off pipework is excessive and the delivery time for b.
  • Page 15 1.0 DESIGN 1.3 SYSTEM DETAILS Space Heating System Design General Warning: Accolade A-CLASS 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. Model selection All models are designed to be installed with any condensing or non condensing gas or oil fired boiler which has a controlled heat source and...
  • Page 16 1.0 DESIGN 1.3 SYSTEM DETAILS Frost protection Pump head If it is necessary to protect parts of the heating system or the boiler which are installed in The net pump head available when hot water unheated spaces (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.
  • Page 17 1.0 DESIGN 1.3 SYSTEM DETAILS Pressure gauge and filling loop Primary The pressure gauge and the approved 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 18 1.0 DESIGN 1.3 SYSTEM DETAILS Open vented heating system Discharge Arrangements Open vented system kit The P & T valve and Expansion Relief Valve (ERV) are both provided with tundishes. It is normal An optional open vented kit as follows can be supplied with the Accolade A-CLASS for these to be connected into a single 22mm •...
  • Page 19 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 20: Site Requirements

    2.0INSTALLATION 2.1 SITE REQUIREMENTS The appliance is designed to be installed in an airing/cylinder cupboard and the relevant minimum dimensions are provided in section 1.2 Technical Data. Because of the ease of installation we recommend that the cupboard construction is completed and painted before installation of the appliance.
  • Page 21 2.0INSTALLATION 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 22 2.0INSTALLATION 2.2 INSTALLATION IMMERSION HEATER 2 3 4 SPD1/2A IMMERSION HEATER 2.5mm² ALL IMMERSION HEATERS, COILS AND VALVE MOTOR VOLTAGES 230v ac 50Hz ~ DRN. DATE P. Ganderton 08-12-04 DATE : DECEMBER 2004 ISSUE No : 2 APPROVED Page 22 Supplied By www.heating spares.co Tel.
  • Page 23 2.0 INSTALLATION 2.2 INSTALLATION LINK LINK * All wire sizes 0.5mm² unless otherwise stated H'KD. APP'D. DATE TITLE JOB NAME S. Gataora Electrical Schematic for 09-12-04 ACCOLADE 'A' Class S. McGachie ACCOLADE 'A' class appliance with GRASSLIN clock (factory standard) GLEDHILL WATER STORAGE LTD.
  • Page 24 2.0 INSTALLATION 2.2 INSTALLATION WIRE COLOUR LEGEND Green Neon indicator Red Neon indicator normal boiler operation 'SWITCH' backup BLUE BROWN BLACK ORANGE DOUBLE POLE PUMP YELLOW CHANGE OVER SWITCH 'SWITCH' CENTRE OFF backup WHITE GREY GREEN / YELLOW CENTRAL HEATING ZONE VALVE 230V~ Honeywell dual thermostat...
  • Page 25 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 26 2.0 INSTALLATION 2.2 INSTALLATION All factory made joints should be checked after installation in case they have been loosened during transit. OV Systems The fittings for the feed and expansion cistern should be installed and the cistern fitted on top of the appliance/on supports (not provided) at high level in the cupboard or in the roof space.
  • Page 27 2.0 INSTALLATION 2.2 INSTALLATION Electrical Connection - Appliance The boiler and control functions of the Accolade are pre-wired to a 25 way terminal strip. A-CLASS The wiring to the appliance shall be carried out by a competent person in accordance with the Building Regulations (Approved Document P) and the IEE Requirements for Electrical Installations BS 7671.

  • Page 28: Commissioning

    2.0 INSTALLATION 2.3 COMMISSIONING SYSTEM FILLING/CLEANSING POWERFLUSHING/CLEANING OF THE HEATING SYSTEM Check and adjust as necessary the hot water system expansion vessel(s) air pressure to 1.5 bar. If it is proposed to ‘powerflush’ the heating system always check and comply fully with Check that any drain valves are closed then open the incoming stop valve and fill the the manufacturers instructions for the domestic mains cold and hot water systems in the normal way ensuring there is no...
  • Page 29 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 30 2.0 INSTALLATION 2.3 COMMISSIONING released from the water during the first few weeks of operation. This must be vented and the system repressurized. If the system is not likely to be used continuously after testing/commissioning it should be isolated from the water and electricity supply and either drained down or have the pressure removed from both the heating and water systems.

  • Page 31: Servicing

    3.0 SERVICING 3.2 CHANGING COMPONENTS 3.1 ANNUAL SERVICING If it is necessary at any time to drain the storage vessel either for system modifications or to replace a component the appliance should be drained in With the water supply turned off, remove the screen from the following way.

  • Page 32: Short Parts List

    3.0 SERVICING 3.3 SHORT PARTS LIST Key No. Description Manufacturer Stock Code No. Council Part No. Inlet Control Group ICS Honeywell XG170 P & T Valve TP152 4.0 bar and 95 Honeywell XG169 Tundish Altecnic XG173 Control/Over Heat Thermostat Honeywell Dualstat XG168 Hot Water/Heating Zone Valve 22mm Honeywell...
  • Page 33 3.0 SERVICING 3.3 SHORT PARTS LIST � � � ��� � � � ����� � �� �� �� �� �� �� �� Page 33 Supplied By www.heating spares.co Tel. 0161 620 6677...

  • Page 34: Fault Finding

    3.4 FAULT FINDING SCALE DISCHARGE FROM RELIEF VALVES In accordance with the Benchmark Guidance Notes in hard water areas,above 200ppm If cold water is discharging from the expansion (mg/l) it is recommended that an in-line scale reduction device is fitted. Reducing the...
  • Page 35 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 36 APPENDIX B MANIFOLDS Two sets of manifolds are available as an optional extra. Each set comprises a separate hot and cold water manifold. Both are provided with a 22mm inlet connection t t i t i l located centrally. All outlet connections are 15mm compression.

  • Page 37: Appendix 'B

    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 38 APPENDIX B The size of the distribution pipes supplying the manifold should be calculated using the method set out in BS 6700. A typical diagrammatic arrangement of a system using Manifold Type 1 is shown below. This is only meant to show the principles involved and the actual connection of fittings to the manifold will need to suit the arrangements shown on page 35.

  • Page 39: Scale Protection

    The levels of water hardness may be measured using a water hardness test kit. BUILDING REGULATIONS Completion of the BENCHMARK log book requires that the ‘competent person’ undertaking the installation and commissioning provide information relating to Cleaning, Inhibitor and Scale Protection.
  • Page 40 APPENDIX D ������ �������� �� ��������� �������� ����������� �� ������ ��� ���� ��� ���� ������ �� ���� ���� ��� ������ �� �������� ��� ����� �������� ������ ���� ��� ������ �������� ����� ��� ������������ �� ���������� �� � ���� ���������� �������� ������...
  • Page 41 �������� ��� ������ �������� ���� �������� ���� ���������� �� ���� � �������� ����� �� �� ���� �� �������� ���� ��� ���������� ����� ������ ����� ��� �� ������ ������ �� �� ����� �� ��� �� ��� ���� �� ������� �� ���� ���� �� �������� ������� �������...
  • Page 42 ��� �� ��� ����� ���� ��� ��������� ����� ���� ��� �� ��� ����� ��� ��� ����� ��������� �� ��� ��������� ���� ��� ����� ��� ��������� �� ������� ����� �� � �� ����� �������� �� �������� �� ������ ��� ������� ��� ��������� ����� ��������� ��������...
  • Page 43 Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 44 Supplied By www.heating spares.co Tel. 0161 620 6677...

This manual is also suitable for:

Accolade aca180 indAccolade aca150 indAccolade aca240 indAccolade aca210 ind

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