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Heatrae Sadia Megaflo Eco SolaReady, Инструкция по эксплуатации

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PRODUCT SPECIFICA

TION

4

Introduction

Congratulations on your purchase of a Megaflo Eco SolaReady unvented water heater. The Megaflo Eco SolaReady is 
manufactured in the UK from top quality materials and meets all the latest relevant safety and constructional standards. 
The high grade Duplex stainless steel cylinder offers exceptional strength and corrosion resistance which is backed by a 
Lifetime guarantee* Its performance and insulation levels exceed the latest requirements of Building Regulation Part L.
The Megaflo Eco SolaReady unvented water heater can be fed directly from the cold water mains supply to the property 
without the need for separate feed cisterns or vent pipes. It is supplied complete with all its necessary inlet and safety 
controls, electric immersion heater(s) and, for indirect units, a cylinder thermostat, thermal cut-out, 2-port motorised valve 
and wiring centre.
Generally its pressure and flowrate performance will far exceed that from a comparable vented system, thermal store, 
multipoint instantaneous gas heater, or combination boiler.
Please read and understand this product guide before starting work. 
Please leave this product guide with the user following installation.
*See terms and conditions of user guide.

Component Checklist – see figure 1

Before commencing installation check that all the components for your Megaflo Eco SolaReady unit are contained in the 
package. The following components are supplied as standard with your Megaflo Eco SolaReady unit:

General Requirements

Important: Please read and understand this product guide before installing the Megaflo Eco SolaReady water heater. Incorrect 
installation may invalidate the guarantee. The Megaflo Eco SolaReady must be Installed, Commissioned and Maintained by 
a competent installer in accordance with Building Regulation G3 (England and Wales), Technical Standard P3 (Scotland) or 
Building Regulation P5 (Northern Ireland) and the Water Fitting Regulations (England and Wales) or Water Byelaws (Scotland). 
Following Installation and Commissioning, the operation of the heater should be explained to the user and the user guide left 
with them for future reference.
THIS APPLIANCE CAN BE USED BY CHILDREN AGED FROM 8 YEARS AND ABOVE AND PERSONS WITH REDUCED PHYSICAL, 
SENSORY OR MENTAL CAPABILITIES OR LACK OF EXPERIENCE AND KNOWLEDGE IF THEY HAVE BEEN GIVEN SUPERVISION 
OR INSTRUCTION CONCERNING USE OF THE APPLIANCE IN A SAFE WAY AND UNDERSTAND THE HAZARDS INVOLVED. 
CHILDREN SHALL NOT PLAY WITH THE APPLIANCE. CLEANING AND USER MAINTENANCE SHALL NOT BE MADE BY 
CHILDREN WITHOUT SUPERVISION
WARNING: Do not switch on if there is a possibility that the water in the heater is frozen.

Storage

The Megaflo Eco SolaReady is supplied on a pallet with its associated control kits. It should be stored upright in a clean, dy, 
frost-free environment prior to installation.

Siting the Megaflo Eco SolaReady

The Megaflo Eco SolaReady unit must be vertically floor mounted. It can be placed anywhere convenient provided the 
discharge pipe(s) from its safety valves can be correctly installed. Areas that are subject to freezing must be avoided. Ensure 
that the floor is of sufficient strength to support the “full” weight of the unit (refer to Tables 2 and 3 on page 7 for unit 
weights). Pipe runs should be kept as short as possible for maximum economy. Access to associated controls, immersion 
heaters and indirect controls should be possible for servicing and maintenance of the system. 
Please do not install valves or pipework (except discharge pipe) within 50mm (2”) of the T&P relief valve to allow your 
insulation set to be fitted. The insulation set is important to ensure heat and energy conservation. See page 12 for more 
information.
To aid installation, the Megaflo Eco SolaReady is provided with lifting points located in the base moulding and two lifting aids 
mounted on the upper rear casing. The weights of the units are noted on the tables on page 7, see tables 2 and 3.

Supplied attached
• Tundish
•   Factory fitted Indirect Thermostat and Thermal cut-out 

(Indirect units only)

•  Factory fitted immersion heater(s) and thermal controls
•  Cold Water Inlet Control Kit, comprising of:
  •  3 Bar Pressure Reducing Valve (Fig 3) Page 9
  •  8 Bar Pressure Relief Valve (Fig 4) Page 9
  •   Stop cock

 

•  Drain Valve

•   Factory fitted Temperature / Pressure Relief Valve (set at 

90ºC / 1 Mpa (10bar))

•  Thermostatic blending valve

Supplied loose
•  T&P Relief Valve Insulation Set
•  Wiring Centre (Indirect units only)
•  Sensor cable 13M
•  2-Port Motorised Valve (Indirect units only)
•  Solar circuit expansion vessel (including mounting bracket)
•    DHW expansion vessel (including mounting bracket)
•  Flexible solar expansion vessel connection pipe

Please note: For East / West array installations, the following 
kit is required:  7225731

Содержание Megaflo Eco SolaReady

Страница 1: ...ot Water Cylinders Megaflo Eco SolaReady Unvented Important Please read understand all these instructions before commencing installation Please leave this manual with the customer for future reference...

Страница 2: ...Direct model 17 Indirect model 18 Installation of solar differential temperature controller 21 East West Array Kit 22 Commissioning 23 Commissioning of solar primary system 24 Commissioning of hydraul...

Страница 3: ...nels its temperature is raised The heated fluid is circulated through a heat exchanger coil in the base of the Megaflo Eco SolaReady solar storage cylinder transferring the heat gained to the stored w...

Страница 4: ...L CAPABILITIES OR LACK OF EXPERIENCE AND KNOWLEDGE IF THEY HAVE BEEN GIVEN SUPERVISION OR INSTRUCTION CONCERNING USE OF THE APPLIANCE IN A SAFE WAY AND UNDERSTAND THE HAZARDS INVOLVED CHILDREN SHALL N...

Страница 5: ...team heating plant unless additional and appropriate safety devices are installed Ascending spray type bidets or any other Class 5 back syphonage risk requiring that a Type AA AB AD or AG air gap be e...

Страница 6: ...ELECTRICIAN AND BE IN ACCORDANCE WITH THE LATEST I E E WIRING REGULATIONS ENSURE THE ELECTRICAL SUPPLY IS SWITCHED OFF BEFORE MAKING ANY CONNECTIONS TO THE MEGAFLO ECO SOLAREADY The Environment This p...

Страница 7: ...to 40 C 260 248 300 Weight empty kg 60 7 69 1 75 4 Weight full kg 320 312 369 Volume Litres 259 243 294 Dedicated solar volume Litres 91 4 83 4 118 0 Max mains pressure 1 6 MPa 16 Bar Max design press...

Страница 8: ...s no requirement to site it close to the unit it can be located at a point where the mains supply enters the premises if this is more convenient but you must install a non return valve just after the...

Страница 9: ...e plumbed to the inlet connection of the Megaflo Eco SolaReady unit No other valve should be fitted between the Pressure Relief Expansion Valve and the cylinder inlet Outlet to Megaflo eco Solar Mains...

Страница 10: ...atmosphere see page 14 Discharge Pipework Isolating Regulating Valves as required Temperature Pressure Relief Valve HWS supply Balanced HWS and MCWS to bathrooms showers cloakrooms etc DOC DOC DOC DO...

Страница 11: ...f a secondary circulation system is required it is recommended that it be connected to the Megaflo Eco SolaReady as shown in Figure 7 To achieve this the 1 2 BSP Sensor Pocket must be removed The seco...

Страница 12: ...he discharge pipe should not be blocked or used for any other purpose The discharge connections from the Pressure Relief Expansion Valve and the Temperature Pressure Relief Valve must not be used for...

Страница 13: ...ter for prolonged periods should be used Worked example of discharge pipe sizing This example is for a G temperature relief valve with a discharge pipe D2 having 4 No elbows and length of 7m from the...

Страница 14: ...l outlet size of the safety device between 18 and 27m at least 3 sizes larger and so on bends must be taken into account in calculating the flow resistance See Diagram 1 Table 1 and the worked example...

Страница 15: ...s of up to 150 C The solar collectors panels or evacuated tubes must be installed according to the instructions supplied with those selected We can only guarantee the system performance if installed i...

Страница 16: ...water expansion vessel or boiler sealed system vessel The charge pressure of the solar expansion vessel must be adjusted when the fluid circuit is empty or de pressurised to a pressure equal to the st...

Страница 17: ...the event of a thermostat failure The thermal cut out reset button position is indicated on Figure 13 DO NOT BYPASS THE THERMAL CUT OUT IN ANY CIRCUMSTANCES The lower immersion heater can be operated...

Страница 18: ...mostat and thermal cut out MUST NOT be disconnected or bypassed To do so would invalidate the product approvals and warranty and it would not comply with Building Regulations Should this method of con...

Страница 19: ...4 N N 1 2 GY BL BR GR OR L N Room stat CH 2 port valve CH pump Solar pump 11 12 A1 N 11 12 E Solar pump 1 L1 NOTE For boilers with pump over run CH pump live supply should be connected to terminal 5...

Страница 20: ...d N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Link Link Link 9 12 N 12 1 1 2 3 GY BL BR GR OR Cylinder auxiliary controls DHW 2 port valve N 7 8 N 8 11 5 4 N N 1 2 GY BL WH GR OR L N Room stat 3 port mid...

Страница 21: ...N Switched Output 2 Neutral A3 Switched Output Live 3 For Auxiliary Heat Control N Switched Output 3 Neutral PE Earth Connection T1 M1 Temperature Sensor Collector 1 Tc1 T2 M2 Temperature Sensor Stora...

Страница 22: ...n is on the East facing circuit The common return pipe from the solar pump station should be connected to the comman Port In the default position the valve is open to Port B When power is applied to t...

Страница 23: ...ct Units Switch on the electrical supply to the immersion heater s and allow the unit to heat up Check that the thermostat operates correctly A storage temperature of approx 60 C is recommended If nec...

Страница 24: ...drain valve on the safety group Fig 19 Item 1 Close right hand isolating valve dot on thermometer bezel at 9 o clock position Flush solar primary pipework and collector via the fill and drain valve o...

Страница 25: ...lot of the adjusting screw Fig 19 Item 3 back to the horizontal position Commissioning of hydraulic station Ensure the solar primary system is free from air Switch on the power supply to the solar dif...

Страница 26: ...e button is pressed and held the value increments continuously Scroll left Exit Cancel Scroll left in main menu Exit a menu Exit a menu item Cancel a value changed without saving it Access Down Access...

Страница 27: ...erature measuring point T6 only shown if connected No 1234 h Operating hours for charging storage tank Can be reset to 0h Yes 927 kWh Energy yield for storage tank Can be reset to 0h Yes Inclination e...

Страница 28: ...selection 0 Normal 230V pump 1 1 HE pump with non inverse PWM Alternatively DC control 2 2 HE pump with inverse PWM Alternatively DC control Energy yield measurement glycol type selection 0 Anro 6 Ty...

Страница 29: ...Kelvin h Operating hours kWh Productivity indication in kWh OVERVIEW OF DISPLAY AND OPERATING ELEMENTS Graphic symbol Description Indication in operation Measuring points assignment Temperature measur...

Страница 30: ...ircuit pump via PWM signal The controller emits a PWM signal at connection O1 for the control of PWM pumps jumper position PWM Base frequency 2 kHz approx 12 V approx 5 mA Non inverse PWM control Non...

Страница 31: ...erature limits possible If the difference between both measurement points exceeds the hystere sis set then A3 is activated In addition one may also define a maximum temperature for the energy consumer...

Страница 32: ...eze If the temperature at the anti freeze sensor line 12 drops below the set value the solar circuit pump is activated and heats the solar circuit using the heat exchanger in the storage tank Basic Se...

Страница 33: ...k dTmax is kept constant as much as possible At lower deviation of Storage tank dTmax the pump is operated with the lowest power till the switch off wave is reached 11 14 Thermostat heating 1 The ther...

Страница 34: ...rmal insulation Fig 26 Item 2 against the rear thermal insulation section Fig 26 Item 3 until it clips into place Benchmark Log Book On completion of the installation and commissioning procedures deta...

Страница 35: ...aximum storage temperature 65 C Storage tank 1 Switch on difference dTon 7 K Storage tank 1 Switch off difference dToff 3 K Storage tank 2 Maximum storage temperature 90 C Storage tank 2 Switch on dif...

Страница 36: ...ate Check solar expansion vessel charge pressure bar bar bar bar bar bar bar bar bar bar bar bar bar Check solar primary system pressure cold bar bar bar bar bar bar bar bar bar bar bar bar bar Check...

Страница 37: ...ly to the immersion heater s and shut down the boiler on indirect units Turn off the mains water supply to the Megaflo Eco SolaReady unit Attach a hosepipe to the drain cock having sufficient length t...

Страница 38: ...r The collector or the collector array must be checked serviced annually to check for any damage leaks or contamination In areas where there may be a build up of dirt on the collector only non abrasiv...

Страница 39: ...p Air in the system Vent system Flow meter defective If visible check whether the flywheel of the meter moves when the system is running Also displayed with energy yield measurement Grundfos sensor de...

Страница 40: ...t in event insufficient solar gain Check If tripped reset by pressing button Check Set to a CH programme Check Switch on supply to immersion heater Check boiler operation If faulty contact boiler manu...

Страница 41: ...termittent Is the discharge continuous and very hot YES YES NO NO Heating fault water may have cooled Blending valves set too low Thermostat settings too low Water from hot taps is lukewarm Contact an...

Страница 42: ...y sensor connections Are sensor cables laid alongside mains voltage cables Have sensor cables been lengthened with unshielded cable Do sensors give correct temperature v resistance readings Are temper...

Страница 43: ...mersion Heater Backnut 95 607 940 Immersion Heater Gasket 70 351 65 Immersion Heater Key 95 607 861 Immersion Heater Blanking Plug 95 605 881 Titanium Immersion Heater Upper 95 606 989 Titanium Immers...

Страница 44: ...3 Bar Inlet Control Valve 3 Bar Pressure Reducing Valve Complete Expansion Relief Cartridge 8 Bar Pressure Relief Valve Complete 95 605 893 Figure 19 Exploded View of 8 Bar Pressure Relief Valve Figu...

Страница 45: ...07 932 E Titanium Immersion Heater Upper 95 606 989 Direct Combined Thermostat and Thermal Cut Out 95 612 717 Gasket 95 611 822 Backnut 95 607 940 Terminal cover 95 614 119 See Figure 21 for Solar Con...

Страница 46: ...ket 95 611 822 Backnut 95 607 940 Terminal cover 95 614 119 C 1 2 BSP Sensor Pocket Assembly Short 95 607 938 A D E C Direct Combined Thermostat and Thermal Cut Out 95 612 717 A Mounting Plate Direct...

Страница 47: ...hermometer 0 120 Blue 5 7225264 Venting circuit DN25 6 720688701 Flow meter 2 15 l min 7 7225266 Pump PWM connector FCI Connector 2m 8 7225265 Pump power supply connector TE Superseal 2m 9 7222382 Gru...

Страница 48: ...ecial Product Division Units 9 10 Hexagon Business Centre Springfield Road Hayes Middlesex UB40 0TY Tel 0208 5730574 Parts Center Network 65 Business Park Bentley Wood Way Burnley Lancashire BB11 5ST...

Страница 49: ...SERVICING 49...

Страница 50: ...ansfer fluid details What type make of heat transfer fluid used System volume litres What is the fluid mix Water Glycol Frost protection provided to C Is the installation in a hard water area above 20...

Страница 51: ...SERVICING 51...

Страница 52: ...pply products that meet or exceed appropriate standards and building and water regulations To provide pre and post sales technical support To provide clear and concise warranty details to customers 36...

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