Commissioning - Mitsubishi Electric ecodan EHPT20Q-VM2EA Installation Manual

5
System Set Up
<Energy monitor settings>
In this menu, all parameters required to record the consumed electrical energy and
the delivered heat energy which is displayed on the main controller can be set.The
parameters are an electric booster heater capacity, supply power of water pumps
and heat meter pulse.
Follow the procedure described in General Operation for the set up operation.
For Pump 1, *** can be also set besides this setting.
In the case *** is selected, the system acknowledges "factory fitted pump" is
selected.
Refer to the section [Energy Monitor] in "3. Technical Information"
<Password protection>
Password protection is available to prevent unauthorised access to the service
menu by untrained persons.
Resetting the password
If you forget the password you entered, or have to service a unit somebody else
installed, you can reset the password to the factory default of 0000.
1.From the main settings menu scroll down the functions until Service Menu is
highlighted.
2.Press CONFIRM.
3.You will be prompted to enter a password.
4.Hold down buttons F3 and F4 together for 3 secs.
5.You will be asked if you wish to continue and reset the password to default
setting.
6.To reset press button F3.
7.The password is now reset to 0000.
<Manual reset>
Should you wish to restore the factory settings at any time, you should use the
manual reset function. However, please note this will reset ALL functions to the
factory default settings.
<SD card>
The use of an SD memory card simplifies the main controller settings in the field.
*Ecodan service tool (for use with PC tool) is necessary for the setting.
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Password input screen
Password verify screen
6

Commissioning

Initial fill and flush procedure:
Ensure all pipe joints and fittings are tight and secure.
Open the most distant DHW tap/outlet.
Slowly/gradually open the mains water supply to begin filling the secondary (potable) circuit / pipework.
Allow most distant tap to run free and release/purge residual air and any impurities that may have resulted from the installation work.
Close tap/outlet to retain fully charged system and resume system commissioning.
Energise system to heat-up cylinder unit.
Open the most distant tap and confirm that hot water is smoothly delivered.
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