Grant MonoWave Series Installation, Servicing And User Instructions Manual
Indirect hp (heat pump) cylinder
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Summary of Contents for Grant MonoWave Series
- Page 1 Grant MonoWave System Indirect HP (Heat Pump) Cylinder Installation, Servicing and User Instructions UK | DOC 0134 | Rev 1.0 | September 2020...
- Page 2 This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued product improve- ment.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 Connections and Controls Cold Water Flow from Hot Water Taps PRIMARY CIRCUIT INSTALLATION Excessive Hot Water from Taps Grant Monowave HP cylinders with buffer SPARE PARTS Primary connections Spare Parts The 2-Port Valve Hard Water Areas... -
Page 4: Introduction
Gant MonoWave indirect HP cylinders have a single coil designed cylinder from our Wave range. for connection to an air source heat pump, such as the Grant Aerona³ range. If a source such as Solar Thermal or another These Installation and User instructions must be read carefully make of heat pump is to be connected, please refer to the before you begin installing the cylinder. -
Page 5: Secondary Circuit Pipework
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 Depletion Potential (ODP) of 0. -
Page 6: Technical Data
TECHNICAL DATA CYLINDER TECHNICAL DATA 2.1.1 REGULAR DIAMETER MODELS Table 2-1: Cylinder technical data (regular diameter models) MonoWave Indirect HP Cylinders Standard efficiency A rated 125 litre 150 litre 170 litre 200 litre 250 litre 300 litre 400 litre 200 litre Nominal capacity (litres) Actual capacity (litres) Overall diameter (mm) - Page 7 2.1.2 SLIMLINE MODELS Table 2-2: Cylinder technical data (slimline models) Slimline MonoWave Indirect HP Cylinders 200 litre 250 litre 300 litre Nominal capacity (litres) Overall diameter (mm) Overall height (mm) 1,538 1,865 2,055 Secondary return connection (mm) Cold feed / hot draw-off connections (mm) Primary coil connections (mm) Primary coil length (m) 16.00...
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Page 8: Product Contents
PRODUCT CONTENTS 2.2.1 REGULAR DIAMETER MODELS Table 2-3: Product contents (regular diameter models) Standard efficiency A rated 125 litre 150 litre 170 litre 200 litre 250 litre 300 litre 400 litre 200 litre Cylinder assembly - 125 litre Cylinder assembly - 150 litre Cylinder assembly - 170 litre Cylinder assembly - 200 litre Cylinder assembly - 250 litre... -
Page 9: Dimensions
2.2.2 SLIMLINE MODELS Table 2-4: Product contents (slimline models) Slimline models 200 litre 250 litre 300 litre Cylinder assembly - 200 litre Cylinder assembly - 250 litre Cylinder assembly - 300 litre Expansion vessel - 19 litre* Expansion vessel - 24 litre* Expansion vessel hose (¾”... - Page 10 22mm Hot water 39˚ 0˚ ˚ 9 draw off " T & P Relief valve (factory fitted) 22mm Secondary return Heat pump flow (22mm) Heat pump stat pocket Immersion heater (factory fitted) 22mm Cold water inlet 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)
- Page 11 22mm Hot water 39˚ 0˚ ˚ 9 draw off " T & P Relief valve (factory fitted) 22mm Secondary return Immersion heater (factory fitted) on 300 & 400 models only Heat pump flow (22mm) Heat pump return (22mm) Heat pump stat pocket Immersion heater (factory fitted)
- Page 12 22mm Hot water ˚ 0 30˚ 0˚ ˚ 0 draw off " T & P Relief valve (factory fitted) 22mm Secondary return Stat pocket Heat pump flow (28mm) Heat pump return (28mm) Stat pocket Immersion heater (factory fitted) 22mm Cold water inlet Figure 2-4: 'A-rated' MonoWave indirect HP cylinder dimensions Table 2-8: 'A-rated' MonoWave indirect HP cylinder dimensions...
- Page 13 22mm Hot water 43˚ 0˚ ˚ 3 draw off ½" T & P Relief valve (factory fitted) 22mm Secondary return Immersion heater (factory fitted) 300 model only Heat pump return (22mm) Heat pump flow (22mm) Stat pocket Immersion heater (factory fitted) 22mm Cold water inlet Figure 2-5: Slimline MonoWave indirect HP cylinder dimensions...
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Page 14: Connections And Controls
CONNECTIONS AND CONTROLS Figure 2-6: MonoWave indirect HP cylinders Figure 2-7: MonoWave indirect HP cylinders - 150 and 170 models - 200, 250, 300 & 400 models Table 2-10: MonoWave indirect HP cylinder connections and controls (including 'A rated' 200L model) Item Description Connection Size... - Page 15 Figure 2-8: MonoWave indirect HP cylinder - 125 model Figure 2-9: 'A-rated' 200L MonoWave indirect HP cylinder Section 2: Technical Data Page 15...
- Page 16 Figure 2-10: Slimline MonoWave indirect HP cylinder Table 2-11: Slimline MonoWave indirect HP cylinder connections and controls Item Description Connection Size Item Description Connection size DHW out 22mm compression Pressure reducing valve - 3 bar T&P valve connection 1/2” BSPF Balanced cold supply connection 22mm compression Secondary return tapping...
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Page 17: Primary Circuit Installation
For other makes of heat pump please check with the heat pump If you are in any doubt over the suitability of an Air Source Heat manufacturer for connection details. Pump (other than a Grant Aerona³ heat pump) for use with the cylinder, consult the heat pump manufacturer. HARD WATER AREAS... -
Page 18: Secondary Circuit Installation
The manifold can be installed in any position as long as it is 11. The cylinder must be registered with Grant UK within 30 days installed in the correct flow direction. Refer to the arrows on of installation. -
Page 19: Expansion Vessel
EXPANSION VESSEL TEMPERATURE AND PRESSURE A suitable expansion vessel with a pre-charge pressure of 3bar is RELIEF VALVE supplied for fitting to all cylinders. The temperature and pressure relief valve (T&P Valve) is supplied This expansion vessel must be connected into the cold water factory fitted to the cylinder. -
Page 20: Tundish
TUNDISH ! NOTE ! A suitable tundish is supplied loose with the cylinder for fitting in the common discharge pipe from the T&P and Expansion relief valves. The discharge will consist of scalding water and steam. The tundish should be vertical, located in the same space as Asphalt, roofing felt and non-metallic rainwater goods may the unvented hot water cylinder and be fitted as close to, and be damaged by such discharges. -
Page 21: 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 next page Trapped gully Figure 4-3: Typical discharge pipe arrangement Section 4: Secondary Circuit Installation... -
Page 22: Electrical
13 amp and contact IMMERSION HEATER separation of at least 3mm. All Grant MonoWave indirect HP cylinders are supplied factory- Use 85°C heat resistant rubber insulated HOFR sheathed flexible fitted with one 3kW immersion heater (two are supplied fitted with cable, with minimum cross sectional area of 1.5mm², to comply... -
Page 23: Immersion Heater Safety Cut-Out
This valve should be wired in accordance with either Figure 5-3 ! WARNING ! or 5-4 (as appropriate) for a Grant Aerona³ heat pump, to comply with current legislation. For other makes of air source heat pump, other than the Grant Before removing the immersion heater covers to either Aerona³, consult the heat pump manufacturer for electrical... -
Page 24: S Plan" Schematic And Wiring
Expansion vessel nor any particular system. Pressure gauge It is the responsibility of the system designer, not Grant UK, to determine the necessary components for and Pressure relief valve configuration of the particular system being designed... - Page 25 Aerona³ ASHP ! NOTE ! Wiring Terminals Hot water The volt free remote contact is provided by the Grant Heating EP002 Interface relay box. Refer to the installation instructions supplied with the Aerona³ ASHP for further 18 and 21 Common details.
- Page 26 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.
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Page 27: Commissioning, Draining Down And Safety
COMMISSIONING, DRAINING DOWN AND SAFETY FILLING THE CYLINDER IMMERSION HEATER SAFETY CUT-OUT The immersion heater incorporates an independent non self- ! CAUTION ! 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: Before filling the cylinder check that the immersion heater The wiring is incorrect. -
Page 28: Cold Water Discharge From Tundish
COLD WATER DISCHARGE SETTING THE CYLINDER BY-PASS FROM TUNDISH The Grant MonoWave indirect HP cylinder MUST be fitted with a simple by-pass between the primary flow and return pipes at There are two reasons why cold water will discharge from the the cylinder when used with either a Grant Aerona³... -
Page 29: Maintenance
INLET MANIFOLD ASSEMBLY Servicing and maintenance must only be carried out by The inlet manifold assembly should not, under normal a competent unvented hot water installer, or by Grant circumstance, require any maintenance. During annual servicing Engineering (UK) Limited authorised personnel. -
Page 30: 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 31: 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 32: 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 33: Spare Parts
SPARE PARTS SPARE PARTS Table 9-1: MonoWave indirect HP cylinder - 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 Temperature and pressure relief valve 90°C / 7 bar GCS09 Tundish - 15mm / 22mm compression GCS10... -
Page 34: 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 35: 12 User Instructions
In the case of a Grant Aerona³ heat pump, this immersion heater DO NOT SHUT OFF THE WATER SUPPLY TO THE may also be used to assist in the heating of your hot water if you CYLINDER. -
Page 36: 13 Guarantee
Pipework, electrical cables and plugs and external controls manufacturer’s guarantee otherwise a service charge could result. not supplied by Grant Engineering (UK) Limited. Grant Engineering (UK) Limited will not be liable for any charges • Heating system components, such as radiators, pipes, arising from this process. - Page 37 • 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.
- Page 38 NOTES Page 38 Notes...
- Page 39 NOTES Notes Page 39...
- 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...
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