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Heatrae Sadia MegaFlo, Руководство по установке

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Contents

SECTION  

 

 

 

 

 

        PAGE

1 

INTRODUCTION ............................................................................3

2 

GENERAL REQUIREMENTS .........................................................4

 

3 

INSTALLATION - GENERAL ...........................................................7

 

4 

INSTALLATION - DIRECT UNITS ...................................................16

 

5 

INSTALLATION - INDIRECT UNITS ...............................................18

 

6 

COMMISSIONING ..........................................................................23

 

7 

USER INSTRUCTIONS ..................................................................25

 

8 

MAINTENANCE ..............................................................................27

9 

FAULT FINDING & SERVICING .....................................................29

10 

DIMENSIONS & SPECIFICATIONS ...............................................32

11 

GUARANTEE ..................................................................................35

12 

CONTACTS ....................................................................................36

 

 

 

 

 .......................................................................

Contents

Please read and understand these instructions before starting work. 

Please leave this leaflet with the user following installation

Содержание MegaFlo

Страница 1: ...Megaflo HE 1 36005823 issue 6...

Страница 2: ...5 INSTALLATION INDIRECT UNITS 18 6 COMMISSIONING 23 7 USER INSTRUCTIONS 25 8 MAINTENANCE 27 9 FAULT FINDING SERVICING 29 10 DIMENSIONS SPECIFICATIONS 32 11 GUARANTEE 35 12 CONTACTS 36 Contents Please...

Страница 3: ...pes 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 motor ised valve and wiring...

Страница 4: ...the components for your Megaflo unit are con tained in the package The following components are supplied as standard with your Megaflo unit Factory fitted immersion heater s and thermal controls Cold...

Страница 5: ...n supply pipe should be in 22mm The minimum mains water supply requirements should be 0 15 MPa 1 5 bar working pressure and 20 litres per min ute flowrate At these values outlet flowrates may be poor...

Страница 6: ...Type AA AB AD or AG air gap be employed Water supplies that have either inadequate pressure or where the supply may be intermittent Situations where it is not possible to safely pipe away any discharg...

Страница 7: ...nnection and a single Check Valve The valve can be fitted in any orienta tion to suit the installation however ensure that the Valve is installed with the direction of flow arrows stamped on the side...

Страница 8: ...alve can be correctly installed ISOLATING VALVE MAINS IN 22MM COMPRESSION CONNECTION PRESSURE REDUCING VALVE HOUSING PRESSURE REDUCING VALVE CARTRIDGE 3 BAR 22MM COMPRESSION CONNECTION OUTLET TO MEGAF...

Страница 9: ...Pressure Relief Valve Balanced cold water draw off to shower mixer valves Note tapping must be min 3m from Megaflo inlet connection Balanced HWS and MCWS to each shower Isolating Regulating Valves as...

Страница 10: ...Drain Off Cock Temperature Pressure Relief Valve Balanced cold water draw off Balanced HWS and MCWS to bathrooms showers cloakrooms etc Isolating Regulating Valves as required HWS supply Expansion Cor...

Страница 11: ...upplied available as an ac cessory order code no 95 970 509 The secondary return pipe should be in 15mm pipe and incorporate a check valve to prevent backflow A suitable WRAS approved bronze circulati...

Страница 12: ...ol or safety valves should be tampered with iv Water may drip from the discharge pipe of the pressure relief device Expansion Valve and this pipe must be left open to atmosphere The discharge pipe sho...

Страница 13: ...ECTION 3 9 The discharge pipe D1 from the vessel up to and including the tundish is generally sup plied by the manufacturer of the hot water storage system Where otherwise the installation should incl...

Страница 14: ...single common discharge pipe should be at least one pipe size larger than the largest individual discharge pipe D2 to be connected If unvented hot water storage systems are installed where discharges...

Страница 15: ...35mm UP TO 9M UP TO 18M UP TO 27M 0 8M 1 0M 1 4M G 3 4 22MM 28mm 35mm 42mm UP TO 9M UP TO 18M UP TO 27M 1 0M 1 4M 1 7M G 1 28MM 35mm 42mm 54mm UP TO 9M UP TO 18M UP TO 27M 1 4M 1 7M 2 3M Fixed grating...

Страница 16: ...helpful to support the immersion heater using a round bladed screwdriver inserted into one of the thermostat pockets Hand tighten the brass backnut Secure the immersion heater in position by tighteni...

Страница 17: ...OUT S IN ANY CIRCUMSTANCES DISCONNECT FROM THE MAINS SUPPLY BEFORE REMOVING ANY COVERS NEVER ATTEMPT TO REPLACE AN IMMERSION HEATER OTHER THAN WITH THE REC OMMENDED HEATRAE SADIA MEGAFLO SPARE PART Fi...

Страница 18: ...ing should be carried out by a competent electrician and be in accordance with the latest I E E Wiring Regulations The Megaflo Indirect Thermostat and Thermal Cut Out are factory pre wired The 2 port...

Страница 19: ...ug Ensure the cylinder is drained of water first Open the cover to the upper immersion heater boss Unscrew the brass backnut using the key spanner provided with the unit Remove the blanking plate and...

Страница 20: ...TAT THERMOSTAT ADJUSTMENT INDIRECT THERMAL CUT OUT INDIRECT THERMAL CUT OUT RESET BUTTON NOTE THE HOUSING COVER AND ELEMENT ASSEMBLY HAVE BEEN REMOVED FROM THIS VIEW FOR CLARITY Figure 12 Indirect con...

Страница 21: ...LINKED BACK TO THE MAINS EARTH SUPPLY 3 USE COPPER LINKS SUPPLIED TO MAKE CONNECTIONS BETWEEN TERMINALS 4 DO NOT MOUNT WIRING CENTRE ON CYLINDER 5 THE ABOVE DIAGRAM IS FOR GUIDANCE ONLY HEATRAE SADIA...

Страница 22: ...LY 3 ASSUMES BASIC BOILER WITH EXTERNAL PUMP 4 USE COPPER LINKS SUPPLIED TO MAKE CONNECTIONS BETWEEN TERMINALS 5 DO NOT MOUNT WIRING CENTRE ON CYLINDER 6 THE ABOVE DIAGRAM IS FOR GUIDANCE ONLY HEATRAE...

Страница 23: ...y through the tundish and discharge pipework Close valve ensure water flow stops and valve reseats correctly ii Repeat for the Expansion Valve situated on the Cold Water Combination Valve or Expansion...

Страница 24: ...Expansion Valve or Temperature and Pres sure Relief Valve during the heating cycle 6 5 BENCHMARKTM LOG BOOK On completion of the installation and commissioning procedures detailed in this manual the...

Страница 25: ...y doubt consult a competent electrician INDIRECT UNITS Indirect units CL models are fitted with an Indirect Thermostat which controls a 2 port motorised valve and hence the temperature of the water in...

Страница 26: ...e cylinder via programmers immersion isolation switch es ii Turn off the water supply to the Megaflo unit by turning off the isolating valve on the Cold Water Combination Valve Turn the black handle s...

Страница 27: ...STRAINER The strainer is incorporated within the Pressure Reducing Valve housing of the Cold Water Combination Valve see Figure 2 To inspect and clean the strainer i Turn off the isolating valve on th...

Страница 28: ...gasket Replace immersion heater s ensuring the lower right angled element hangs vertically downwards towards the base of the unit It may be helpful to support the immersion heater using a round bladed...

Страница 29: ...on heater gasket 95 611 822 Immersion heater backnut 95 607 869 Immersion heater key 95 607 861 Immersion heater blanking plug 95 605 881 Tundish 95 605 838 Expansion relief valve cartridge 8bar 95 60...

Страница 30: ...bt contact the Heatrae Sadia Service Department see Section 12 Figure 15 Exploded view of the Cold Water Combination Valve and Expansion Core Unit Valve Body 95 605 029 Check Valve Housing 95 605 028...

Страница 31: ...ostat 6 INDIRECT motorised valve not connected correctly 6 Check wiring and or plumbing connections to motorised valve see Diagram 9 Water discharges 1 INTERMITTENTLY from Expansion Relief Valve Expan...

Страница 32: ...32 32 10 Dimensions Specifications Dimensions Specifications Figure 16 Dimensions Temperature Pressure Relief Valve Temperature Pressure Relief Valve Direct units Indirect units...

Страница 33: ...imensions Table 4 Direct units Technical specifications Table 5 Indirect units Technical specifications NOTE Coil heating performance based on a primary flow rate of 15 l min at 80o C Temperature rise...

Страница 34: ...on CFC HCFC free fire retardant expanded polyurethane foam with zero ozone depletion potential It has a Global Warming Potential GWP of 3 1 Nominal thickness 50mm Pipe connections All connections acce...

Страница 35: ...e water v It has not been installed in a location liable to be subjected to frost nor has it been tampered with or been subjected to misuse or neglect vi No factory fitted parts have been removed for...

Страница 36: ...l 0845 0553811 E mail sales ewh co uk SPD Special Product Division Units 9 10 Hexagon Business Centre Springfield Road Hayes Middlesex UB40 0TY Tel 020 8606 3567 Parts Center Network 65 Business Park...

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