Grant QR Range Installation, Servicing And User Instructions Manual
Pre-plumbed indirect heat pump cylinder
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- Page 1 Grant QR Range Pre-Plumbed Indirect Heat Pump Cylinder Installation, Servicing and User Instructions UK | DOC 0180 | Rev 1.0 | September 2021...
- Page 2 This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued product improve- ment. However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (UK) Limited, the author or others involved in its publication.
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Page 3: Table Of Contents
No flow from hot water taps Optional plinth dimensions Cold water flow from hot water taps Excessive hot water from taps PRIMARY CIRCUIT INSTALLATION Grant QR pre-plumbed indirect heat 10 SPARE PARTS pump cylinders Primary connections PRODUCT FICHE Hard water areas... -
Page 4: Introduction
3 bar. The maximum supply the Grant Aerona³ range. If another heat source, such as a boiler pressure into the pressure reducing valve (PRV) is 12 bar. -
Page 5: Secondary Circuit Pipework
1.11 INSULATION All Grant QR pre-plumbed indirect heat pump cylinders are insulated with a 50mm layer of CFC/HCFC free, fire retardant, polyurethane foam injected between the stainless steel cylinder and the outer casing. This polyurethane foam has a Global Warming Potential (GWP) of 3.1 and an Ozone Depletion... -
Page 6: Technical Data
TECHNICAL DATA CYLINDER TECHNICAL DATA Table 2-1: Cylinder technical data Grant QR pre-plumbed indirect heat pump cylinders 210 litre 250 litre 300 litre Nominal capacity (litres) Actual capacity (litres) Overall diameter (mm) Overall height 1493 1744 2057 Weight - empty (kg) -
Page 7: Product Contents
PRODUCT CONTENTS Table 2-2: Product contents (QRSCPP models) Grant QR pre-plumbed indirect heat pump cylinders 210 litre 250 litre 300 litre Cylinder assembly Expansion vessel - 19 litre Expansion vessel - 24 litre ½ʺ temperature and PRV - 7 bar/90°C †... -
Page 8: Cylinder Dimensions
FLOW TO HEATING ZONE 2 - 22 mm FLOW TO HEATING ZONE 3 - 22 mm FLOW FROM HEAT PUMP - 28mm (OPTIONAL, PIPE BLANKED) Figure 2-1: Grant Pre-Plumbed QR indirect heat pump cylinder dimensions Table 2-3: Pre-plumbed cylinder dimensions Dimensions 210 litre... -
Page 9: Optional Plinth Dimensions
OPTIONAL PLINTH DIMENSIONS Figure 2-2: Grant QR Cylinder Plinth (product code: MB-24) R 275 Figure 2-3: Grant QR Cylinder Plinth dimensions Section 2: Technical Data Page 9... -
Page 10: Primary Circuit Installation
Figure 3-1). They should be wired in accordance with Figures 5-2 and 5-3 to ensure that, when used with a Grant Aerona³ Heat ! WARNING ! Pump, the installation will comply with current legislation. -
Page 11: Secondary Circuit Installation
Cold water supply pipe to be 22mm nominal size. 10. The cylinder must be registered with Grant UK within 30 days Flush supply pipework before connection to remove all flux of installation. Refer to Section 13 for further details on the and debris prior to fitting the inlet controls. -
Page 12: Expansion Vessel 12 A
The expansion vessel must be positioned with the connection point at the bottom. SECONDARY RETURN All Grant QR pre-plumbed indirect heat pump cylinders are fitted No valve should be fitted between the expansion vessel with a secondary return connection. If a secondary return circuit is and the cylinder. -
Page 13: Tundish
TUNDISH ! NOTE ! A suitable tundish is supplied fitted to the outlets from the T&P relief valve and expansion relief valve. The tundish should be vertical, located in the same space as The discharge will consist of scalding water and steam. the unvented hot water cylinder and be fitted as close to, and Asphalt, roofing felt and non-metallic rainwater goods may lower than, the T&P valve with no more than 600mm of pipe (D1) -
Page 14: Discharge Pipe Arrangement
4.13 DISCHARGE PIPE ARRANGEMENT Safety device (e.g. temperature relief valve) Metal discharge pipe from safety device 600mm max Tundish Discharged below fixed grating Fixed grating Metal discharge pipe from tundish with continuous fall. See table and worked example on previous page Trapped gully Figure 4-3: Typical discharge pipe arrangement Page 14... -
Page 15: Electrical
13 amps. Refer to Section 5.7 for further information All Grant QR pre-plumbed indirect heat pump cylinders are supplied factory-fitted with one 3kW immersion heater. This on the Greenbrook T205-C timer and Figures 5-2 and 5-3 for connection details. -
Page 16: Immersion Heater Safety Cut-Out
For other makes of air source heat pump, other than the Grant ! WARNING ! Aerona³, consult the heat pump manufacturer for electrical connection details. -
Page 17: Wiring Diagrams
* in order to achieve independent time control for the DHW zone, the link between terminals 33 and 34 of the EP001 wiring centre must be removed before connecting your chosen time control option. For detailed information on the operation of the Grant EP001 wiring centre, please refer to Grant UK DOC 0176. - Page 18 230V 3 to 8 50HZ Figure 5-3: Grant QR pre-plumbed indirect heat pump cylinder connected to a Grant Aerona³ ASHP, as part of a S-Plan plus type system with UFH (Grant UH8 Wiring Centre) and a radiator circuit Page 18...
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Page 19: Commissioning, Draining Down And Safety
COMMISSIONING, DRAINING DOWN AND SAFETY IMMERSION HEATER SAFETY CUT-OUT ! NOTE ! The immersion heater incorporates an independent non self- resetting over temperature cut-out device to prevent excessive water temperatures. Refer to Section 5.3 for further details. Commissioning details should be entered in the The safety cut-out will operate if: commissioning and service log at the back of these The wiring is incorrect. -
Page 20: Cold Water Discharge From Tundish
COLD WATER DISCHARGE FROM CUSTOMER HANDOVER TUNDISH Complete the commissioning and service log at the back of these instructions and leave the instructions with the user. There are two reasons why cold water will discharge from the tundish: Explain the operation of the system to the User, referring to Section 12 of these instructions. -
Page 21: Maintenance
Servicing and maintenance must only be carried out by Remove the un-sprung circlip retaining the expansion relief a competent unvented hot water installer, or by Grant valve cartridge in the inlet manifold body. See Figure 4-1. Engineering (UK) Limited authorised personnel. -
Page 22: Fault Finding
FAULT FINDING INTERMITTENT WATER DISCHARGE Intermittent water discharge from T&P valve Expansion vessel charge Thermostat failure reduced Test vessel and recharge or Immersion thermostat failure Primary cylinder thermostat Faulty T&P valve replace Repair or replace immersion Repair or replace thermostat Replace T&P valve thermostat Test for correct operation. -
Page 23: No Flow From Hot Water Taps
NO FLOW FROM HOT WATER TAPS No flow from hot water taps Check any in-line strainers which may be fitted to the Mains supply disconnected? system and clean as required Open supply valve or wait for supply to be reconnected Test for correct operation. -
Page 24: Excessive Hot Water From Taps
EXCESSIVE HOT WATER FROM TAPS Excessive hot water from taps Is cylinder thermostat set too Correct wiring as per Is system wiring correct? high? instructions? Is cylinder thermostat Reduce thermostat setting Replace cylinder thermostat operating? Does motorised valve close Repair or replace motorised when thermostat satisfied? valve motor Repair or replace motorised... -
Page 25: Spare Parts
SPARE PARTS SPARE PARTS Table 9-1: Grant QR indirect HP cylinders - spare parts Product description Product code Inlet manifold c/w 3 bar pressure reducing valve and 6 bar expansion relief valve GCS07 Expansion relief valve - 6 bar GCS08 ½ʺ... -
Page 26: 10 Product Fiche
There is little risk to those involved in the disassembly of the cylinder or thermal store if the process is undertaken with care and reasonable precautions are taken. RECYCLING Many of the materials used in Grant hot water storage cylinders and thermal stores can be recycled, as listed below: COMPONENT MATERIAL... -
Page 27: 12 User Instructions
IMMERSION HEATERS Valve (EV) on the cylinder seek expert advice immediately. Your Grant QR indirect heat pump cylinder is fitted with one 3kW If the water is flowing from the T&P Valve, immediately: immersion heater. Refer to Section 5.1 for further details. -
Page 28: 13 Guarantee
13 GUARANTEE You are now the proud owner of a cylinder from Grant Free of charge repairs Engineering (UK) Limited, which has been designed to give you During the two year guarantee period no charge for parts years of reliable, trouble free operation. - Page 29 • The balance of the guarantee is transferable providing the installation is serviced prior to the dwelling’s new owners taking up residence. Grant Engineering (UK) Limited must be informed of the new owner’s details. • The Company will endeavour to provide prompt service in the unlikely event of a problem occurring, but it cannot be held responsible for any consequences of delay however caused.
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Page 30: Digital Dual Thermostat
APPENDIX A DIGITAL DUAL THERMOSTAT GENERAL INFORMATION A.1.3 OVERHEAT PROTECTION FUNCTION A.1.1 THERMOSTAT SPECIFICATION The thermostat is equipped with an overheat protection function, which is designed to operate if the contents of the cylinder reaches a temperature of 80°C. Selco Industry - Make and model TW04E9B000D100 If this function operates, the thermostat must be manually reset in... - Page 31 To do this, please refer to steps 1-3 outlined in Section A.1.2. The Digital Dual Thermostat supplied with all Grant QR pre- plumbed cylinders is not suitable for use with a Y-plan type control system using a Honeywell V4073A mid-position zone valve (or similar).
- Page 32 Temperature Temperature Warning triangle Demand display Temperature probe wiring indicator light indicator light Display screen probe wiring harness order connection °C Indicator LED Brown White Green Temperature Yellow control dial PL N Screw Permanent live Neutral Demand Common Satisfied connection connection terminal terminal...
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Page 33: Greenbrook T205-C Fused Timer Spur Switch
Greenbrook T205-C timer factory fitted, to control the operation of the immersion heater for anti-legionella purposes. Please refer to Grant UK DOC 0136 for detailed information on anti-legionella regimes. Please refer to Section B.3 and Section 5 of these instructions for wiring details. - Page 34 B.2.3 PROGRAMMING THE ‘ON’/’OFF’ TIMES Use the ‘+’ or ‘-’ buttons to set the OFF times in the same way as for PROG 1 ON time. ! NOTE ! Press ‘PROG’ to scroll through program 2 ON, program 2 OFF, program 3 ON, program 3 OFF, program 4 ON, program 4 OFF, adding in times as required.
- Page 35 B.2.7 ONE AND TWO HOUR BOOST Use ‘+’ or ‘-’ button to select ‘TUE’, then press ‘TIME’ button twice to copy the data. The display will represent Figure Press ‘-’ (boost) once in normal operating mode turns on for 1 B-13.
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Page 36: Installation, Commissioning And
APPENDIX C INSTALLATION, COMMISSIONING AND SERVICE RECORD LOG BOOK Customer Details Customer Name Customer Address TEL No. ! NOTE ! This Log Book is only for use in Great Britain. Please, keep the Log Book in a safe place for future reference. This Log Book is to be completed in full by the competent person(s) who commissioned the equipment and then handed to the customer. - Page 37 ! NOTE ! IT IS THE RESPONSIBILITY OF THE INSTALLER TO COMPLETE THIS LOGBOOK AND PASS IT ON TO THE CUSTOMER, FAILURE TO DO SO MAY INVALIDATE THE CYLINDER GUARANTEE. Appliance and Time Control Details GRANT UK Manufacturer Model Capacity Litres Serial No.
- Page 38 Hot Water System Information □ Does the hot water system comply with the appropriate Building Regulations? YES □ Has the system been installed and commissioned in accordance with the manufacturer’s instructions? YES □ Have you demonstrated the operation of the system controls to the customer? YES □...
- Page 39 SERVICE INTERVAL RECORD It is recommended that your hot water system is serviced regularly and that your service engineer completed the appropriate Service Interval Record below. ! NOTE ! SERVICE PROVIDER Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions and in compliance with all relevant codes of practice.
- Page 40 GRANT ENGINEERING (UK) LIMITED Hopton House, Hopton Industrial Estate, Devizes, Wiltshire, SN10 2EU Tel: +44 (0)1380 736920 Fax: +44 (0)1380 736991 Email: info@grantuk.com www.grantuk.com...