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Installation and servicing instructions MDC0001
For stainless steel hot water cylinders
Mixergy Ltd
2 Canal View
Wharf Farm
Cassington
Oxfordshire
Please leave with householder
OX29 4DB
Failure to install and maintain this system in accordance with
V14 07/04/21
these instructions will invalidate the manufacturer's warranty.
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Table of Contents
Related Manuals for Mixergy 150
Summarization of Contents
Cylinder details
MX Number Identification
Information on locating the cylinder's unique identification number.
Installation: general guidelines (Page 11)
Positioning of the cylinder
Guidance on placing the cylinder for optimal installation and access.
Installation: general guidelines (Page 12)
Unvented installations
Requirements for installing unvented systems, including pressure and flow rates.
Use of flux and sterilisation
Recommendations and warnings regarding the use of flux and the sterilisation process.
Pipework and cold water control group
Details on piping size, pressure reducing valve, and isolation valves.
Fitting a drain valve
Instructions for correctly fitting a drain valve to ensure adequate drainage.
Connecting the hot draw
Recommendation for using a 90° elbow at the hot draw to minimize heat loss.
Installation: general guidelines (Page 13)
Positioning the tundish
Guidance on the placement of the tundish for visibility and safety.
Checking the P&T relief valve
Instructions for verifying the pressure and temperature relief valve's connection and seal.
Fitting the expansion vessel
Steps for securely mounting and connecting the expansion vessel.
Indirect units and electrical wiring
Information on wiring indirect units, including zone valves and electrical regulations.
Installation: electrical (Page 14)
External wiring
Overview of wiring requirements for Mixergy cylinders.
Supply
Details on connecting the primary power supply via a dedicated circuit.
Timer control
Instructions for integrating the cylinder with existing timers or controllers.
Indirect control
Information on providing an indirect control signal for heat calls to boilers/heat pumps.
Installation: electrical (Page 15)
Indirect wiring
Guidance on wiring indirect cylinders into S-plan and Y-plan heating configurations.
Indirect and external controller wiring
Details on wiring via the 'indirect control' cable and terminating conductors.
Wiring with 2 port zone valve (S-plan)
Specific wiring instructions for S-plan systems using a 2-port zone valve.
Wiring with 3 port mid position valve and 2 port zone valve (Y-plan)
Specific wiring instructions for Y-plan systems using 3-port and 2-port zone valves.
Installation: electrical (Page 18)
External controller wiring
Instructions for connecting the Mixergy system to an external controller using the timer control cable.
Installation: electrical (Page 19)
PV diverters
Information on wiring the cylinder for use with third-party PV diverters.
Installation: connectivity (Page 20)
Installing the powerline adapter
Steps for connecting the cylinder to the internet using a powerline adapter.
Installation: connectivity (Page 21)
Hardwiring an ethernet connection
Instructions for establishing a wired internet connection via Ethernet.
Discharge pipework (Page 22)
Discharge pipes from safety devices
Guidelines for discharge pipes from relief valves to the tundish, including diameter and manifold use.
Tundish
Specifications for tundish installation, location, and compliance with regulations.
Discharge pipework (Page 23)
Typical discharge pipe arrangement
Illustrates a typical discharge pipe setup from safety devices to a trapped gulley.
Sizing of copper discharge pipe 'D2' for common temperature relief valve outlet sizes
Table detailing pipe sizes and resistance for discharge pipes based on valve outlet size.
Discharge pipework (Page 24)
Discharge pipe D2
Detailed requirements for discharge pipe D2, including material, fall, and sizing based on resistance.
Discharge pipework (Page 26)
Termination of discharge pipe
Acceptable arrangements for terminating discharge pipes safely, considering proximity to people.
Commissioning (Page 28)
Changing heat sources
Instructions on how to change the primary heat source (direct, indirect, heat pump).
Status LED error codes
Explains the meaning of different status LED indications and error codes.
Commissioning (Page 29)
Pairing the cylinder and connecting to the internet
Detailed steps for pairing the cylinder with the powerline adapter and connecting to the network.
Commissioning checklist (Page 30)
Fitter details
Section for recording installer and system identification details.
Commissioning checklist (Page 31)
Cylinder primary settings
Checks related to system pressure and sealed/vented circuits.
Unvented cylinders only
Specific checks for unvented cylinders, including relief valves and cut-out devices.
Final checks
Final verification steps before leaving the installation, including customer demonstration.
Problem solving (Page 32)
Overheated water
Procedure to follow in case of overheated water discharge, including contacting an engineer.
Water discharge
Troubleshooting steps for occasional or continuous water discharge from the cylinder.
Electrical fault
Guidance on addressing suspected electrical faults in the controller or system.
Connectivity issues
Advice for troubleshooting any problems related to the cylinder's internet connectivity.
Problem solving (Page 33)
Expansion vessel check and re-charging
Detailed instructions for checking and recharging the expansion vessel's pressure.
Safety valves
Steps for identifying and replacing faulty safety valves.
Cross flow
Explanation and solution for cross-flow issues affecting the cylinder's operation.
Immersion heaters
Troubleshooting steps for immersion heaters not heating water adequately, including checking thermostat and reset button.
Draining the cylinder
Flushing the cylinder
Procedure for flushing the system after draining or if discharge issues persist.
Servicing and maintenance
Annual service checks
Routine checks to be performed annually by a qualified professional.
Disassociating an account
Instructions for disassociating the cylinder from an account when changing users.
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