MCDonald MULTIflow Technical Manual Download Page 12 | Manualshive

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Issue 3

13/01/21

11

MULTI

flow SB: Schematic

Standard manual fill model shown above.

3kW

Expansion Pipe

Feed Pipe

Hot Out

c/w Thermostatic

Mixing Valve

Expansion
Bottle

Cold Mains
Secondary Water

High Efficiency
Secondary Coil

Boiler Coil Flow

Boiler Coil Return

Boiler Control Stat

@ 70

⁰

C

Drain

Immersion Heater

(Off Peak)

Sight Glass

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Summary of Contents for MULTIflow

Page 1: ...Manual MULTIflow Thermal Store Cylinders Tel 01592 611123 www mcdonaldwaterstorage com January 2021 MULTIflow Thermal Store Tank Technical Manual Manual must be completed by Installer and left with H...

Page 2: ...Overflow Requirements 7 Showers 8 MULTIflow OV Schematic 9 MULTIflow OV Connection Heights 10 MULTIflow SB Schematic 11 MULTIflow SB Schematic Connection Heights 12 Technical Data 13 Installation Sch...

Page 3: ...is intended to provide support with the installation of the MULTIflow thermal storage system Responsibility for selection and specification of our equipment remains that of our customer and any expert...

Page 4: ...transit Any manual lifting will need to comply with the requirements of the Manual Handling Operations Regulations issued by the Health Safety Executive For installations on higher levels of properti...

Page 5: ...d incorporates an expansion bottle to accommodate the thermal expansion of the heated mains water If the volume of the secondary pipework loop exceeds 15 Litres then the installer must fit suitable re...

Page 6: ...ing cold supply enters the property No Pressure Reducing Valve or Check Valve should be fitted within 2 metres of the Cold Inlet to the MULTIflow Coil If the flow rate exceeds 15 Litres per minute at...

Page 7: ...will require the application of a protective scale and corrosion inhibitor such as Fernox to ensure adequate protection This should avoid having corrosive material in the primary system and remove an...

Page 8: ...15mm 1 metre minimum A pressure reducing valve must be fitted after the stopcock of where the incoming cold supply enters the property and at least 2 metres away from the inlet to the Secondary Water...

Page 9: ...and pressure is maintained and that it is suitable for the type of people using it Some showers in the TMV2 range have about a 10 degree differential between the hot inlet temperature and the mixed o...

Page 10: ...n above 3kW 3kW Expansion Pipe Feed Pipe Hot Out c w Thermostatic Mixing Valve Expansion Bottle Cold Mains Secondary Water High Efficiency Secondary Coil Boiler Flow Boiler Return Immersion Heater On...

Page 11: ...1600 Width 560 560 560 560 Depth 605 605 605 605 Drain 120 120 120 120 Off Peak IH 170 170 170 170 On Peak IH 550 650 750 850 Boiler Flow 790 980 1130 1390 Boiler Return 230 230 230 230 Control Stat...

Page 12: ...model shown above 3kW Expansion Pipe Feed Pipe Hot Out c w Thermostatic Mixing Valve Expansion Bottle Cold Mains Secondary Water High Efficiency Secondary Coil Boiler Coil Flow Boiler Coil Return Boil...

Page 13: ...ight 1000 1200 1400 1600 Width 560 560 560 560 Depth 605 605 605 605 Drain 120 120 120 120 Off Peak IH 170 170 170 170 Boiler Flow 470 500 600 700 Boiler Return 230 230 230 230 Control Stat 400 400 40...

Page 14: ...7 1 56 1 66 Thermal Stores have been tested in accordance with HWA Thermal Store Specification Multifuel Heat losses should not be directly compared with heat losses from unvented vented cylinders bec...

Page 15: ...Issue 3 13 01 21 14 Installation Schematic Open Vented...

Page 16: ...Issue 3 13 01 21 15 Installation Schematic Sealed System Boiler...

Page 17: ...n cock is fitted we recommend a DZR fitting Fit the Overflow with Copper piping or high temperature plastic to the thermal store system where required Ensure minimum of 225mm between the top of the ta...

Page 18: ...ng is run from the MULTIflow ensure that 500mm height difference is in place between the highest point of the radiator circuit and the bottom of the Feed Expansion Tank Ensure that all exposed pipewor...

Page 19: ...the control thermostat is set at 70 C the safety cut out has not tripped and receiving the correct supply at the correct time off peak The thermal store is at 70 C and the water at the taps is still l...

Page 20: ...r 4 If the DHW Coil is giving an initial heat transfer and then fading this could be a sign of scale build up inside the Heat Exchanger Coil especially if in a known hard water area A competent instal...

Page 21: ...with the requirement set out in the installation manual The Commission Checklist Service Record included in our manual has been completed and updated after each annual service where required Any disin...

Page 22: ...ts Density Immersion Heater WIHLWD 3kW Electric Heating Element for Hot Water Cylinder Cylinder Thermostat WTCT MULTIflow Thermostat 0 90 C Thermostatic Mixing Valve WTTMV Adjustable Valve top blend h...

Page 23: ...f demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference Failure to install and commission this equipment to the manufacturer s...

Page 24: ...ols have been fitted in compliance with Part L of the Building Regulations Yes Type of control system if applicable Y Plan S Plan Other What is the hot water thermostat set temperature C If fitted wha...

Page 25: ...riate Building Regulations Yes The system has been installed and commissioned in accordance with the manufacturer s instructions Yes The system controls have been demonstrated and understood by the cu...

Page 26: ...Issue 3 13 01 21 25 Notes...

Page 27: ...Issue 3 13 01 21 26 Notes...

Page 28: ...described To supply products that meet or exceed appropriate standards and building and water regulations To provide pre and post technical support To provide clear and concise warranty details to cu...

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