Grant QR Range Installation, Servicing And User Instructions Manual
Ntegrated indirect heat pump cylinder
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- Page 1 Grant QR Range Integrated Indirect Heat Pump Cylinder Installation, Servicing and User Instructions UK | DOC 0181 | Rev 1.0 | November 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- Page 2 This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued product improve- ment.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
Cylinder components Constant water discharge No flow from hot water taps PRIMARY CIRCUIT INSTALLATION Cold water flow from hot water taps Grant QR integrated indirect heat Excessive hot water from taps pump cylinder Primary connections SPARE PARTS Hard water areas... -
Page 4: Introduction
Grant Aerona³ range. If another heat source, such as a boiler the availability of an adequate power supply for connecting the or another make of heat pump is to be connected, please refer to immersion heater. -
Page 5: Secondary Circuit Pipework
1.11 INSULATION All Grant QR integrated 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 Potential (ODP) of 0. -
Page 6: Technical Data
TECHNICAL DATA CYLINDER TECHNICAL DATA Table 2-1: Cylinder technical data Grant QR Integrated indirect heat pump cabinet cylinder 210 litre Nominal capacity (litres) Actual capacity (litres) Overall width (mm) Overall depth (mm) 727* Overall height (mm) 1854 Weight - empty (kg) -
Page 7: Product Contents
Inlet manifold - 3 bar PRV and 6 bar expansion relief valve † 2-port motorised valve - 22 mm † Dual thermostat (control: 25-65°C / high limit: 80°C) † Greenbrook T205-C timer † Grant EP001 wiring centre † M20 cable glands M16 cable glands Immersion heater - 3kW 1¾ʺ boss †... -
Page 8: Dimensions
(Left side view) Lower front panel Adjustable feet 100mm spacers if required (supplied) (Top view) Rear top panel Cable entry points Front top panel Figure 2-1: Grant QR integrated indirect heat pump cylinder dimensions Page 8 Section 2: Technical Data... -
Page 9: Cylinder Components
Tundish (15/22mm) Fill & Flush Valve Immersion Heater Primary Circuit Filling Loop Drain Cock Figure 2-2: Grant QR integrated indirect heat pump cylinder - internal view (front, top and right hand side panels removed) Section 2: Technical Data Page 9... -
Page 10: Primary Circuit Installation
1 x Blanked pipe tail for a third heating zone if required If you are in any doubt over the suitability of an Air Source Heat Pump (other than a Grant Aerona³ heat pump) for use with the • 1 x Digital dual thermostat (Cylinder thermostat and High cylinder, consult the heat pump manufacturer. -
Page 11: Hard Water Areas
An 18 litre expansion vessel with a pre-charge pressure of 1.0 bar • Remove one of the 22mm straight compression couplers is supplied fitted to the primary circuit of the Grant QR integrated indirect heat pump cylinders. from the accessories pack supplied with the cylinder and... -
Page 12: Secondary Circuit Installation
3-1). A service valve (not supplied) must be fitted in the cold supply to the cylinder before this connection is made. Grant QR integrated indirect heat pump cylinders are supplied The expansion relief valve should be either horizontal or with all the necessary safety devices and components required for upright - if fitted inverted, debris may be deposited on the an unvented hot water system. -
Page 13: Secondary Circuit Expansion Vessel
HOT WATER SUPPLY 10. The cylinder must be registered with Grant UK within 30 days of installation. Refer to Section 13 for further details on the Connect the hot water supply pipe to cylinder connection G (refer Cylinder guarantee. to Figure 3-1). To make this connection, remove one of the 22mm... -
Page 14: Tundish
TUNDISH 4.11 DISCHARGE PIPE SIZING A suitable tundish is supplied fitted to the outlets from the T&P Refer to Table 4-1 (discharge pipe sizing). relief valve and expansion relief valve. Table 4-1: Discharge pipe sizing A discharge pipe must be fitted to the outlet of the tundish. This Maximum must conform to the requirements as given in Sections 4.10 to Minimum... -
Page 15: 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 Section 4: Secondary Circuit Installation... -
Page 16: Electrical
“S-plan” type system that incorporates a programmer, etc. IMMERSION HEATER All Grant QR integrated indirect heat pump cylinders are supplied factory-fitted with one 3kW immersion heater. This immersion heater conforms to EEC Directive 76/889 for radio interference and complies with EN 60335-2-73. -
Page 17: Digital Dual Thermostat
GRANT EP001 WIRING CENTRE supplied with this cylinder, please refer to Appendix A at the back The Grant EP001 wiring centre is supplied factory fitted to Grant of these instructions. QR integrated indirect heat pump cylinders and is wired as shown in Figure 5-2. -
Page 18: 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 19 50HZ Link (factory fitted) Figure 5-3: Grant QR integrated 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 Section 5: Electrical...
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Page 20: 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 21: Cold Water Discharge From Tundish
POTABLE HOT WATER EXPANSION ! NOTE ! VESSEL The potable hot water expansion vessel is connected into the cold water supply to the cylinder. Refer to Figure 2-2 for If the fill connection (see Figure 6-1) is connected to the position. -
Page 22: Balancing The Primary Circuit
CUSTOMER HANDOVER • If a Grant Aerona³ heat pump is fitted, initially set Complete the commissioning and service log at the back of the circulating pump contained in the unit to level 1 these instructions and leave the instructions with the user. -
Page 23: 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 24: Expansion Vessel Servicing
7.4.2 SECONDARY CIRCUIT EXPANSION VESSEL Two expansion vessels are supplied fitted to Grant QR integrated indirect heat pump cylinders. One serves the primary circuit and Isolate the cold water supply to the cylinder. the other serves the secondary circuit. Refer to Figure 2-2 for Open hot water taps. -
Page 25: 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 26: 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 27: 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 28: 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 29: 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 30: 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 31: 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 32 • 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 33: 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 34 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 35 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 36: 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 37 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 38 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 39: 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 40 ! 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 41 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 42 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.
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Page 43: Notes
NOTES Notes Page 43... - Page 44 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...