The PAR-W21MAAhas many different functions that control the performance of
the Ecodan®. Below are the symbols and displays used for each function.
Waiting for start-up
Stand by (Hot adjust)
Not in use button
Temperature display °C/°F setting
Once installed by a fully trained engineer the system will be ready to use as day,
time and target flow temperatures will be set.
The end user should be aware of how to change:
The day and time
Target flow temperature (for all modes)
Please note the temperature given are for guidance only. The flow temperatures
required will vary on the construction of the radiators or under-floor heating
system as well as the heat load of the room/house. The installer should set-up
your system to these temperatures but they can be altered later on if required.
Fine tuning of the operating conditions of the Ecodan can reduce your energy
bills, dropping just the flow temperature 1°C can make a difference to the bill.
Water temperature display
Operation function limit setting
Mode Skip setting
Temperature range limit setting
range limit setting
Use of clock setting
Setting the day of the week and time