Heating System - Mitsubishi Electric ecodan Homeowner Quick Start Manual

Ecodan Air Source Heat Pump
Ecodan Cylinder Unit
The cylinder unit is used to store your hot water as well as
containing various heating parts essential to operating your
heating system, such as water pumps and safety valves.
Controls
Your hot water and central heating system is
operated by the control panel, which will either
be attached to the front of the cylinder unit or
attached to a wall in your home. The control panel
allows you to customise the settings to your requirements.

Heating System

This is the method used to transfer heat from the Ecodan to the home.
Most often large radiators, but sometimes under floor heating.
Page 4
Heat energy from the outside air and mains
electricity are used by the Air Source Heat Pump
to heat refrigerant to a high temperature. This
heat is then transferred to water which flows into
your home for central heating and also for
domestic hot water. The way the heat pump
works is similar to a refrigerator in reverse.
TRV's
Your radiators may be fitted with Thermostatic
Radiator Valves (TRV's). These will adjust the
amount of heat emitted from the radiator,
dependent on the demand. Each valve can be
adjusted by turning the top of the valve. The
higher the number displayed on the valve, the
warmer your room will become and the more
energy you will use. Check your TRV's to make
sure they are not set too high.