Key Facts - Mitsubishi Electric Ecodan HUS210FTC4ST Installation Manual

Key Facts

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This version of the Mitsubishi Electric pre-plumbed cylinder is the fourth generation in terms of its control systems
and the design of key mechanical components.
As you would expect there have been many technological changes based around our experience of producing
premium quality cylinders optimised to work with our Ecodan
For those familiar with previous generations of our cylinders the most obvious change is the addition of a larger,
FTC4 control centre providing greater flexibility and additional functionality when compared with the outgoing
FTC2 versions. Some Key FTC4 features are shown below.
Weather Compensation
2 Heating Zones
Backup Heater Control Option
Adaptive Room Compensation
Built in Immersion Control
SD Card Commissioning
Intelligent Fossil Fuel Boiler Control
Multiple Unit Control
Wi-Fi Ready
High Limit Control
The main controller replaces the room thermostat, timeclock and commissioning controller previously supplied.
In 'Room Compensation' mode this controller measures and records actual and target room temperature which
when combined with other sensor readings allow the system to calculate the minimum required flow temperature,
meaning the Ecodan
and is intended to be used as the main thermostat. It should not be installed within the cylinder cupboard.
FTC4 based systems also have the ability to control multiple Ecodan
a single system. Further details of how to achieve these types of setup can be found later in this manual.
Precise control of any immersion heater fitted is now available directly from FTC4 so there is no need to add
any third party relays as was the case with FTC2 systems. Immersion heater strategy can be edited in terms
of maximum temperature, frequency, start time and duration of maximum temperature to ensure that the
pasteurisation cycle consumes the minimum amount of electricity and can be tailored for any installation.
The TH5 sensor now takes on the role of not just the control stat but also the high limit stat, in the very unlikely
event of a high temperature failure, power will be cut to the heat source and mechanical isolation will be provided
by closing of the hot water valve.
Other features such as SD card input and the potential for Wi-Fi connectivity will mean that commissioning
and fault finding on FTC4 based systems will become quicker and easier.
® is heating the property in the most efficient way possible. This controller is supplied loose
range of air source heat pumps.
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FTC4 Installation Manual
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