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10 Hand-over to the user
10
Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ Fill in the installer setting table (in the operation manual) with the
actual settings.
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation on the url as earlier described in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
▪ Show the user what to do in relation to maintaining the unit.
▪ Explain the user about energy saving tips as described in the
operation manual.
10.1
About locking and unlocking
If required, it is possible to lock the buttons of the main user
interface, making it impossible for the user to operate it. For the user
to be able to change setpoint temperatures, the simplified user
interface or an external room thermostat is then required.
You can use the following locking modes:
▪ Function lock: Locks a specific function to prevent people from
changing its settings.
▪ Button lock: Locks all buttons to prevent users from changing
settings.
Possible function locks
Lock
Room On/OFF
LWT On/OFF
Temperature up/down
Quiet mode
Holiday
Operation mode
User settings
To check if locking is active
1 Press
to go to one of the home pages.
2 If
is displayed, button lock is active.
Note: If you are on a home page and try to use a function that is
locked,
is displayed for 1 second.
To activate or deactivate a function lock
1 Press
to go to the menu structure.
2 Press
for more than 5 seconds.
3 Select a function and press
4 Select Lock or Unlock, and press
To activate or deactivate button lock
1 Press
to go to one of the home pages.
2 Press
for more than 5 seconds.
Installer reference guide
70
If active, people cannot...
Turn ON or OFF the room
temperature control.
Turn ON or OFF the leaving
water temperature control.
Adjust temperatures.
Use quiet mode.
Use holiday mode.
Set the space operation mode.
Change settings in [7]:
> User
settings.
.
.
11
Maintenance and service
NOTICE
Maintenance must be done by an authorised installer or
service agent.
We recommend to do maintenance at least once a year.
However, applicable legislation might require shorter
maintenance intervals.
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO
-equivalent) is used to determine the maintenance
2
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
11.1
Overview: Maintenance and
service
This chapter contains information about:
▪ The yearly maintenance of the outdoor unit
▪ The inspection of the backup heater switch box.
▪ The inspection of the control box switch box.
11.2
Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
NOTICE: Risk of electrostatic discharge
Before performing any maintenance or service work, touch
a metal part of the unit in order to eliminate static electricity
and to protect the PCB.
11.2.1
Opening the outdoor unit
See
"7.2.2 To open the outdoor unit" on page 28
the switch box cover of the outdoor unit" on
11.2.2
Opening the control box
See
"7.2.4 To open the control box" on
11.2.3
Opening the option box
See
"7.2.5 To open the option box" on
11.2.4
Opening the backup heater
See
"7.2.6 To open the backup heater" on page 29
open the switch box cover of the backup heater" on
11.3
Checklist for yearly maintenance
of the outdoor unit
Check the following at least once a year:
▪ Heat exchanger
▪ Water pressure
▪ Water filter
▪ Water pressure relief valve
Packaged air-cooled water chillers and packaged air to water heat
and
"7.2.3 To open
page 28.
page 28.
page 29.
and
"7.2.7 To
page 29.
EWAQ+EWYQ004+005BAVP
pumps
4P492900-1 – 2017.06
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