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Page 26

Figure 5-4:

S-plan system connection diagram with Grant HW priority relay and DHW Boost Kit 2

The control system shown in this diagram includes the Grant hot water priority relay (product code: HWPR1). This ensures

that there can be no demand for space heating and hot water at the same time.
Any demand from the programmer and cylinder thermostat for hot water will activate the relay, immediately interrupting any

heating demand from the programmer. This will remain interrupted until the demand for hot water stops - either the cylinder

thermostat is satisfied or there is no hot water output from the programmer.

For information regarding the operation of the DHW Boost Kit shown in this control system wiring diagram, please refer to

Section 5.4 of the Aerona³ ASHP installation instructions.

ASHP Terminals

2
3
4
5
6
7
8

17
18
19

20
21
22
23
24

Hot Water (Yellow)

Common (Red)

Link

Heating (Blue)

4 Core ( 3 + E )

Volt free connections from

Heating and Hot Water zone

valves to terminals 18 - 20 on

ASHP terminal PCB via relays

on Grant EP002

3 2 1

240V

50HZ

L N E

Double Pole

Isolator

Green/Yellow

Blue

Brown

Wiring Centre

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Orange

Orange
Orange

Double

Pole

Isolator

13A

Green/Yellow

Brown

Blue

Blank

Spacer

2 4

N L

Green/Yellow

Blue

Brown

Grant Automatic DHW Boost Kit 2

Hot Water

Immersion

Heater

Green/Yellow

Brown

Blue

Motor

HTG

2-Port Zone Valve

Brown

Blue

Green/Yellow

Motor HTG

2-Port Zone Valve

Brown

Blue

Green/Yellow

Grey

Grey
Grey

Motor

Twin Channel

Programmer

OFF

N L

Limit 80°C /

Cyl Stat 50°C

Room

Stat 1

2 1 3

Room

Stat 2

2 1 3

1 2 3 4

Earth and some Neutral connections

have been excluded for clarity.

RL2

RL3

RL1

DHW

Grant EP002 Heat Pump Interface

OFFON ON

Hot Water

Priority Relay

! NOTE !

The volt free remote contact is provided by the Grant

EP002 Interface relay box. Refer to the installation

instructions supplied with the Aerona³ ASHP for further

details.

Aerona³ ASHP

Wiring Terminals

Hot water

Heating

18 and 21

Common

Section 5: Electrical

Содержание HPMONO/IND125

Страница 1: ...UK DOC 0134 Rev 1 0 September 2020 Grant MonoWave System Indirect HP Heat Pump Cylinder Installation Servicing and User Instructions ...

Страница 2: ...direct HP heat pump cylinder After installing the cylinder leave these instructions with the user User instructions to guide users in the operation of the cylinder are in Section 12 of these instructions SPECIAL TEXT FORMATS The following special text formats are used in these instructions for the purposes listed below WARNING Warning of possible human injury as a consequence of not following the ...

Страница 3: ...20 4 11 Discharge Pipe Sizing 20 4 12 Worked Example 20 4 13 Discharge Pipe Arrangement 21 5 ELECTRICAL 22 5 1 Immersion Heater 22 5 2 Immersion Heater Wiring Instructions 22 5 3 Immersion Heater Safety Cut Out 23 5 4 Dual Thermostat 23 5 5 2 Port Valves 23 5 6 Heat pump interface box 23 5 7 S Plan Schematic and Wiring 24 Diagrams Contents Page 3 6 COMMISSIONING DRAINING DOWN 27 AND SAFETY 6 1 Fil...

Страница 4: ...OUR CYLINDER Gant MonoWave indirect HP cylinders have a single coil designed for connection to an air source heat pump such as the Grant Aerona range If a source such as Solar Thermal or another make of heat pump is to be connected please refer to the manufacturer s installation instructions for more information The coil must be connected using a 2 port motorised valve for solar installations a hi...

Страница 5: ... higher than 60 C This will help reduce the migration of suspended solids in the water and help minimise the build up of lime scale 1 12 INSULATION All Grant MonoWave Cylinders are insulated with CFC HFC 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 less than 3 and an Ozone Deple...

Страница 6: ...2 22 22 Primary coil connections mm 22 22 22 22 22 22 22 28 Primary coil length m 11 68 8 00 8 00 16 00 16 00 16 00 16 00 16 00 Primary coil surface area m 1 5 1 65 1 65 3 3 3 3 3 3 3 3 3 3 Primary coil pipe diameter mm 28 32 32 32 32 32 32 32 Maximum water supply pressure bar 12 12 12 12 12 12 12 12 System operating pressure pre set bar 3 3 3 3 3 3 3 3 Expansion vessel charge pressure bar 3 3 3 3...

Страница 7: ...f connections mm 22 22 22 Primary coil connections mm 22 22 22 Primary coil length m 16 00 16 00 16 00 Primary coil surface area m 3 3 3 3 3 3 Primary coil pipe diameter mm 32 32 32 Maximum water supply pressure bar 12 12 12 System operating pressure pre set bar 3 3 3 Expansion vessel charge pressure bar 3 3 3 Expansion relief valve pressure bar 6 6 6 T P relief valve lift pressure bar 7 7 7 T P r...

Страница 8: ...racket and band 1 1 1 1 1 1 1 1 ʺ temperature and PRV 7 bar 90 C 1 1 1 1 1 1 1 1 Tundish 15 22 mm 1 1 1 1 1 1 1 1 Drain cock ʺ end feed 1 1 1 1 1 1 1 1 Inlet manifold 3 bar PRV and 6 bar expansion relief valve 1 1 1 1 1 1 1 1 2 port motorised valve 22 mm 1 1 1 1 1 1 1 1 Dual thermostat control 25 65 C high limit 90 C 1 1 1 1 1 1 1 1 Immersion heater 3kW 1 ʺ boss 1 1 1 1 1 2 2 1 Factory fitted Vess...

Страница 9: ...r 3kW 1 ʺ boss 1 1 2 Factory fitted Vessel may come with a 3 4 BSPM thread allowing for direct connection to the supplied expansion vessel hose OR a 22mm compression fitting In this instance a 22mm compression to 3 4 BSPM adapter will be supplied for connection to the supplied expansion vessel hose A short length of 22mm pipe will need to be sourced and fitted between the 22mm compression fittings...

Страница 10: ...at pump stat pocket 0 39 B I Heat pump return 22mm Figure 2 2 MonoWave indirect HP cylinder dimensions 150 and 170L models only Table 2 6 MonoWave indirect HP cylinder dimensions 150 and 170L models only Dimensions mm 150 litre 170 litre A 200 200 B 215 215 C 230 230 D 341 355 E 620 620 F 490 705 G 675 835 H 885 1035 I 920 1070 Diameter 580 580 Secondary return is below heat pump flow tapping on 1...

Страница 11: ...0 E 1050 1050 F 800 1050 1395 1555 G 930 1140 1440 1862 H 1157 1360 1650 2050 I 1192 1395 1685 2085 Diameter 580 580 580 580 Secondary return is below flow and return tappings on 200L model ONLY Dia A C D E F G H 9 3 22mm Hot water draw off 1 2 T P Relief valve factory fitted Heat pump flow 22mm Heat pump return 22mm 22mm Secondary return Immersion heater factory fitted on 300 400 models only 22mm...

Страница 12: ...turn 22mm Cold water inlet Immersion heater factory fitted Stat pocket 0 30 Stat pocket D I Figure 2 4 A rated MonoWave indirect HP cylinder dimensions Table 2 8 A rated MonoWave indirect HP cylinder dimensions Dimensions mm A rated 200 litre A 153 B 183 C 663 D 803 E 903 F 1288 G 1573 H 1900 I 1935 Diameter 580 Section 2 Technical Data Page 12 ...

Страница 13: ...n heater factory fitted Stat pocket 0 43 D E Immersion heater factory fitted 300 model only Table 2 9 Slimline MonoWave indirect HP cylinder dimensions Dimensions mm 200 litre 250 litre 300 litre A 186 186 186 B 201 201 201 C 356 356 356 D 821 821 821 E 991 F 1121 1471 1671 G 1321 1621 1821 H 1503 1830 2020 I 1538 1865 2055 Diameter 510 510 510 Figure 2 5 Slimline MonoWave indirect HP cylinder dim...

Страница 14: ... 90 C 7 bar 15mm compression 5 Dual thermostat pocket 13 Tundish 15 22mm compression 6 Cold water inlet 22mm compression 14 Discharge pipe not supplied with cylinder 7 Heat pump flow tapping 22mm compression 15 Mains water supply pipe not supplied with cylinder 8 Immersion heater c w control limit thermostat factory fitted 1 BSPF 16 Drain cock supplied with cylinder 8A Immersion heater c w control...

Страница 15: ...3 5 5 6 8 13 9 10 11 12 14 15 16 Figure 2 9 A rated 200L MonoWave indirect HP cylinder Section 2 Technical Data Page 15 1 2 7 3 5 6 8 13 9 10 11 12 14 15 16 4 Figure 2 8 MonoWave indirect HP cylinder 125 model ...

Страница 16: ...on 4 Heat pump return tapping 22mm compression 12 Temperature Pressure relief valve 90 C 7 bar 15mm compression 5 Dual thermostat pocket 13 Tundish 15 22mm compression 6 Cold water inlet 22mm compression 14 Discharge pipe not supplied with cylinder 7 Heat pump flow tapping 22mm compression 15 Mains water supply pipe not supplied with cylinder 8 Immersion heater c w control limit thermostat factory...

Страница 17: ...e 22mm compression The valve has 22mm compression connections For the A rated cylinder The primary flow and return fittings are 28mm compression The valve has 22mm compression connections 2 Locate the dual thermostat in the stainless steel pocket refer to Figures 2 6 to 2 10 as appropriate for location and secure using the retaining screws on the thermostat housing 3 Any automatic or manual air ve...

Страница 18: ...upright if fitted inverted debris may be deposited on the seat and cause fouling of the seat when the valve operates Check direction of flow arrows 5 If the installation requires one a pressure gauge should be sourced and fitted on the cold water supply to the cylinder between the inlet manifold and the cold water inlet tapping on the cylinder 6 Connect the expansion vessel directly to the BSPF co...

Страница 19: ...rced and fitted between the 22mm compression fittings at the expansion vessel and the expansion vessel hose adapter 4 5 TEMPERATURE AND PRESSURE RELIEF VALVE The temperature and pressure relief valve T P Valve is supplied factory fitted to the cylinder The T P valve must not be removed from the cylinder or tampered with in any way The valve is pre set to lift at 7bar or 90 C and any attempt to adj...

Страница 20: ... end of the discharge pipe clearly visible tundish visible or not or onto a roof capable of withstanding high temperature discharges of water and 3m from any plastics guttering systems that would collect such discharges tundish visible 3 Where a single pipe serves a number of discharges such as in blocks of flats the number served should be limited to not more than 6 systems so that any installati...

Страница 21: ...from safety device Metal discharge pipe from tundish with continuous fall See table and worked example on next page Discharged below fixed grating Fixed grating Trapped gully Tundish 600mm max 300mm min Figure 4 3 Typical discharge pipe arrangement Page 21 Section 4 Secondary Circuit Installation ...

Страница 22: ... 80 C 5 C The immersion heater is factory fitted to the cylinder If the immersion heater needs to be replaced it must be fitted to the cylinder using the gasket provided on the unit Only use a correctly shaped spanner Stilsons or pipe grips should not be used The use of sealing compound is not recommended WARNING The immersion heater must NOT be used unless it is fully immersed in water Always ens...

Страница 23: ...ections refer to either Figure 5 3 or 5 4 as appropriate 5 5 2 PORT VALVES To comply with the regulations governing the installation of indirect unvented hot water cylinders a 2 port motorised valve must be fitted in the primary flow to prevent gravity circulation when the boiler switches off Your Grant MonoWave indirect HP unit has been supplied with a 2 port motorised valve which will act as a p...

Страница 24: ...omatic air vent 8 Thermostatic radiator valve 9 Automatic system by pass 10 Flexible hose 11 Isolation valve 12 Volumiser 13 Motorised 2 port valve CH 14 Motorised 2 port valve DHW 15 Additional circulating pump refer to Section 8 3 7 of installation instrucitons supplied with Aerona ASHP 16 Drain point 17 By pass HPID13R32 HPID17R32 only 18 Mag One magnetic filter The following system diagram ref...

Страница 25: ...3 4 RL1 RL2 RL3 Hot Water Yellow Common Red Heating Blue CH DHW N P NO CL Gra PR Aer G EN Hop Hop Devi WIL SN1 DA SC DRA CHE The control system shown in this diagram ensures that there can be no demand for space heating and hot water at the same time In order to achieve this type of operation the programmer MUST NOT have a built in connection between the live connection driving the timer and the t...

Страница 26: ...om Heating and Hot Water zone valves to terminals 18 20 on ASHP terminal PCB via relays on Grant EP002 3 2 1 240V 50HZ L N E Double Pole Isolator 5A 2 C Green Yellow Blue Brown Wiring Centre 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Orange Orange Orange Double Pole Isolator 13A Green Yellow Brown Blue 1 A1 Blank Spacer A2 2 4 3 N L Green Yellow Blue Brown Grant Automatic DHW Boost Kit 2 Hot Water Imm...

Страница 27: ...or stop cock 4 Open all hot water taps 5 Open drain cock in cold water supply to drain unit down Refer to Figures 2 6 to 2 10 as appropriate 6 3 IMMERSION HEATER SAFETY CUT OUT 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 The safety cut out will operate if a The w...

Страница 28: ...setting shown on the pressure reducing valve 3 The expansion vessel must be installed even if an accumulator is fitted 4 The charge of the vessel must be checked at every annual service 6 7 SETTING THE CYLINDER BY PASS The Grant MonoWave indirect HP cylinder MUST be fitted with a simple by pass between the primary flow and return pipes at the cylinder when used with either a Grant Aerona HPID13R32...

Страница 29: ... the cylinder time to fill whilst checking for any leaks Release any air from the system by opening each hot water tap individually starting with the one furthest from the cylinder 11 Manually lift the expansion relief and temperature and pressure relief valve one at a time every 12 months more frequently in hard water areas to prevent debris from building up behind the valve seat Whilst carrying ...

Страница 30: ...ty T P valve Repair or replace thermostat Replace T P valve Test for correct operation If water is still discharging contact a compentant engineer No No No Yes Yes Yes 8 2 CONSTANT WATER DISCHARGE Constant water discharge from T P valve Expansion vessel charge reduced Faulty T P valve Faulty pressure reducing valve Test vessel and recharge or replace Replace T P valve Replace pressure reducing val...

Страница 31: ...n Check and replace cylinder thermostat Test for correct operation If water is still cold contact a competent engineer Yes Yes Yes Yes Yes No No No No Yes No 8 3 NO FLOW FROM HOT WATER TAPS No flow from hot water taps Mains supply disconnected Check any in line strainers which may be fitted to the system and clean as required Open supply valve or wait for supply to be reconnected No Yes Test for c...

Страница 32: ...ng as per instructions Reduce thermostat setting Is cylinder thermostat operating Replace cylinder thermostat Does motorised valve close when thermostat satisfied Repair or replace motorised valve motor Fault Contact engineer Test for correct operation If water is still cold contact a competent engineer No No No No Yes Yes Yes Yes Yes Repair or replace motorised valve ...

Страница 33: ...GCS31 3kW immersion heater element Cotherm type ELE14 IN 800 UNV and thermostat Cotherm type TSE GCS13 Drain cock GCS14 2 port motorised valve 22mm GCS20 12 litre expansion vessel with BSPM connection 12 litre actual volume 125L and 150L models GCS23 19 litre expansion vessel with BSPM connection OR 22mm compression fitting 18 litre actual volume 170L and 200L models only GCS01 24 litre expansion ...

Страница 34: ...d below COMPONENT MATERIAL Shell Stainless steel duplex 2034 Internal coils Stainless steel Compression connections Brass Outer casing Steel acrylic coated Top bottom caps ABS acrylic capped T P valve Brass Immersion heater Brass stainless steel Dual thermostat Plastic copper Expansion vessel Stainless steel Cold water inlet manifold Brass DISPOSAL All materials other than those listed above must ...

Страница 35: ...erheat thermostat will automatically operate if the water temperature reaches 90 C If this operates it can be re set To do this first wait for the cylinder to cool down Then unscrew the plastic cap and press in the small re set pin If the problem persists please contact your installer TEMPERATURE SETTINGS The hot water temperatures on the cylinder immersion heater and dual thermostat should not be...

Страница 36: ...r to contact Grant Engineering UK Limited Service Department on 44 0 1380 736920 who will arrange for a competent service engineer to rectify the fault Remember before you contact Grant Engineering UK Limited Ensure the cylinder thermal store has been installed commissioned and serviced by a competent person in accordance with the installation and servicing instructions Ensure the problem is not b...

Страница 37: ...ering UK Limited cylinders thermal stores purchased and installed on the UK mainland Isle of Wight Channel Islands Isle of Man and Scottish Isles only2 Provision of in guarantee cover elsewhere in the UK is subject to agreement with the Company All claims under this guarantee must be made to the Company prior to any work being undertaken Invoices for call out repair work by any third party will no...

Страница 38: ...Notes Page 38 NOTES ...

Страница 39: ...Notes Page 39 NOTES ...

Страница 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 ...

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