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Unvented Hot Water Cylinder

INST

ALLA

TION AND

COMMISSIONING INSTRUCTIONS (2)

ish

Megaflo eco Solar

Balanced cold water

draw-of

8 Bar Pr

essur

e Relief

Valve (combined

Expansion Relief

Valve/Check V

alve)

3 Bar Pr

essur

e Reducing

Valve incorporating

essur

e Reducing V

alve,

Strainer

,and Check V

alve.

(Stop cock can be fitted

her

MCWS to Kitchen

(unbalanced cold

mains supply)

Incoming Cold

ater Main

KEY

MCWS =

Mains Cold W

ater Supply

HWS =

Hot water Service

SC =

Stop Cock / Isolating V

alve

DOC =

Drain Of

f Cock

Discharge pipe to atmospher

(see page 18 “Discharge Pipework”)

Isolating/Regulating

Valves, as r

equir

Temperature/Pressure Relief V

alve

HWS supply

Balanced HWS and

MCWS to bathr

ooms,

showers, cloakr

ooms,

etc

DOC

Expansion V

essel

Figure 7 - Schematic installation diagram using 3 bar Pressure Reducing Valve in

conjunction with 8 bar Pressure Relief Valve

Содержание Megaflo Eco Solar Series

Страница 1: ...Unvented Direct Indirect Solar Megaflo Product Guide Hot Water Cylinders...

Страница 2: ...Contents Product Specification Page 3 Installation and Commissioning Instrucions Page 11 Maintenance and Servicing Page 27 User Guide Page 36...

Страница 3: ...Introduction Checklist General Requirements Water Supply Power Supply The Environment Specification and Dimensions 3 Unvented Hot Water Cylinder PRODUCT SPECIFICATION 1...

Страница 4: ...levels exceed the latest requirements of Building Regulation Part L The MEGAFLO Eco Solar unvented water heater can be fed directly from the cold water mains supply to the property without the need f...

Страница 5: ...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 3 and 4 on page 9 for unit weights Pipe runs should be k...

Страница 6: ...opriate Building Regulations either The Building Regulations England The Building Regulations Scotland or Building Regulations Northern Ireland The Water Fittings Regulations England and Wales or Wate...

Страница 7: ...ns All connections accept 22mm outside diameter pipe compression nuts and olives supplied Thread rate is 3 4 BSP male parallel to accept standard 3 4 BSP female fittings if required Safety features Di...

Страница 8: ...8 Unvented Hot Water Cylinder PRODUCT SPECIFICATION 1 Fig 2 Megaflo eco Solar Direct A D 373 454 414 C B 47 27 30 45 73 600 Fig 3 Megaflo eco Solar Indirect A 373 454 414 E D F C 7 3 600 47 27 30 45...

Страница 9: ...IGHT kg SIZE EMPTY FULL AUXILLARY VOLUME L AUXILLARY COIL SPECIFICATIONS SURFACE sqm HEAT UP mins RECOVERY mins RATING kW 170 210 260 300 37 8 42 5 47 3 61 5 207 8 252 5 307 3 361 5 N A 60 60 60 N A 7...

Страница 10: ...10 Unvented Hot Water Cylinder NOTES PRODUCT SPECIFICATION 1...

Страница 11: ...General Installation Indirect Model Direct Model Commissioning Unvented Hot Water Cylinder 11 PRODUCT SPECIFICATION 1 INSTALLATION AND COMMISSIONING INSTRUCTIONS 2...

Страница 12: ...Figure 4 below The 3 Bar Pressure Reducing Valve can be connected anywhere on the cold water mains supply prior to the MEGAFLO Eco Solar unit There is no requirement to site it close to the unit it c...

Страница 13: ...Valve 3 Bar Pressure Reducing Valve Stopcock 8 Bar Pressure Relief Valve See Figure 5 below This should be installed between the 3 bar Pressure Reducing Valve and the MEGAFLO Eco Solar cylinder Shoul...

Страница 14: ...o Kitchen unbalanced cold mains supply Incoming Cold Water Main KEY MCWS Mains Cold Water Supply HWS Hot water Service SC Stop Cock Isolating Valve DOC Drain Off Cock Discharge pipe to atmosphere see...

Страница 15: ...o SOLAR FOR ANY OTHER PURPOSE IT MUST NOT BE USED IN PLACE OF THE SOLAR PRIMARY SYSTEM EXPANSION VESSEL Secondary Circulation The secondary return pipe should be in 15mm pipe and incorporate a check v...

Страница 16: ...mains water supply to the MEGAFLO Eco Solar unit iii No control or safety valves should be tampered with iv Water may drip from the discharge pipe of the pressure relief device Expansion Valve and thi...

Страница 17: ...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 Note An alterna...

Страница 18: ...r discharge pipe D2 for common T P Relief Valve sizes Figure 10 Schematic discharge pipe arrangement INSTALLATION AND COMMISSIONING INSTRUCTIONS 2 Discharge Pipework It is a requirement of Building Re...

Страница 19: ...control thermostat and thermal cut out If in doubt consult the boiler manufacturer Solid fuel boilers or any other boiler in which the energy input is not under effective thermostatic control unless a...

Страница 20: ...see p 21 However other systems may be suitable refer to the controls manufacturers instructions supplied with the controls selected for alternative system wiring schemes Immersion Heater s The MEGAFL...

Страница 21: ...N N L N L Bl W G O GY 1 2 3 L N HTG ON DHW ON PUMP BOILER 3 PORT MID POSITION VALVE MEGAFLO ECO DHW 2 PORT VALVE SUPPLIED WIRING CENTRE SUPPLIED PROGRAMMER MEGAFLO ECO INDIRECT THERMAL CONTROLS SUPPL...

Страница 22: ...tighten the brass backnut Secure the immersion heater in position by tightening with the key spanner provided Replace the thermostat capillaries spiral one in first making sure capillary tubes do not...

Страница 23: ...MPERATURE DECREASE TEMPERATURE ADJUSTING SPINDLE Figure 16 Adjustment details INSTALLATION AND COMMISSIONING INSTRUCTIONS 2 Safety DO NOT BYPASS THE THERMAL CUT OUT S IN ANY CIRCUMSTANCES DISCONNECT F...

Страница 24: ...The solar controller and solar primary circulation pump must be wired via the over temperature cut out mounted in the lower solar controls housing Figure 17 below This will ensure that the heat input...

Страница 25: ...med to give a maximum storage temperature in the MEGAFLO Eco Solar of 70o C although 60o C is recommended to minimise scaling Direct Units Switch on the electrical supply to the immersion heater s and...

Страница 26: ...26 Unvented Hot Water Cylinder NOTES INSTALLATION AND COMMISSIONING INSTRUCTIONS 2...

Страница 27: ...Maintenance Fault Finding Servicing Spares Benchmark Unvented Hot Water Cylinder 27 MAINTENANCE AND SERVICING 3...

Страница 28: ...ar to relieve the system pressure Open drain cock If water fails to drain from the MEGAFLO Eco Solar vent the unit by manually opening the Temperature Pressure Relief Valve Descaling immersion heater...

Страница 29: ...educing Valve If greater than 3 bar replac e P res s ure Reduc er c artridge b E x pans ion V alve s eat dam aged M ilk y water 1 O x y genated water No hot water flow W ater from hot taps is c old W...

Страница 30: ...k 95 605 885 Immersion Heater Backnut 95 607 940 Immersion Heater Gasket 95 611 822 Immersion Heater Key 95 607 861 Immersion Heater Blanking Plug 95 605 881 Titanium Immersion Heater Upper 95 606 989...

Страница 31: ...Stopcock Can Be Used Either with 3 Bar Inlet Control Valve or 8 Bar Pressure Relief Valve 95605885 MAINTENANCE AND SERVICING 3 Expansion Relief Cartridge 95 605 888 8 Bar Pressure Relief Valve Complet...

Страница 32: ...95 612 716 Direct Combined Thermostat and Thermal Cut Out 95 612 717 Incoloy Immersion Heater Lower 95 606 984 6 Way Terminal Block 95 607 933 Terminal cover 95 614 118 Terminal cover 95 614 118 Back...

Страница 33: ...Terminal cover 95 614 119 Titanium Immersion Heater Lower 95 606 988 Three Way Terminal Block 95 607 932 C Titanium Immersion Heater Upper 95 606 989 Direct Combined Thermostat and Thermal Cut Out 95...

Страница 34: ...34 Unvented Hot Water Cylinder MAINTENANCE AND SERVICING 3...

Страница 35: ...Unvented Hot Water Cylinder 35 MAINTENANCE AND SERVICING 3...

Страница 36: ...on Units 9 10 Hexagon Business Centre Springfield Road Hayes Middlesex UB4 0TY Tel 020 8606 3567 Parts Center Tel 0845 270 9800 www partscenter co uk Newey Eyre Unit 3 5 Wassage Way Hampton Lovett Ind...

Страница 37: ...Unvented Hot Water Cylinder 37 User Instructions Guarantee Customer Service USER GUIDE 4...

Страница 38: ...adjustments Changes to the operating temperature differential set points can affect the efficiency of the operation of the solar heating circuit it is recommended that any changes made are carried out...

Страница 39: ...een tampered with or been subjected to misuse or neglect No factory fitted parts have been removed for unauthorised repair or replacement The BenchmarkTM Commissioning Checklist and Service Record inc...

Страница 40: ...lation legal requirements regulations building regulations benchmark spares stockists guarantees and warranty are ONLY APPLICABLE WITHIN THE UK For local legislation legal requirements regulations bui...

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