3 About the system
Operation manual
4
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688015-1C – 2022.09
▪ Do NOT use cleaning materials or
means to accelerate the defrosting
process other than those
recommended by the manufacturer.
▪ Be aware that the refrigerant inside
the system is odourless.
WARNING
▪ The refrigerant inside the unit is
mildly flammable, but normally does
NOT leak. If the refrigerant leaks in
the room and comes in contact with
fire from a burner, a heater, or a
cooker, this may result in fire, or the
formation of a harmful gas.
▪ Turn OFF any combustible heating
devices, ventilate the room, and
contact the dealer where you
purchased the unit.
▪ Do NOT use the unit until a service
person confirms that the part from
which the refrigerant leaked has been
repaired.
WARNING
Air purging heat emitters or
collectors.
Before you purge air from
heat emitters or collectors, check if
or
is displayed on the home screen
of the user interface.
▪ If not, you can purge air immediately.
▪ If yes, make sure that the room
where you want to purge air is
sufficiently ventilated.
Reason:
Refrigerant might leak into the water
circuit, and subsequently into the
room when you purge air from the
heat emitters or collectors.
3
About the system
Depending on the system layout, the system can:
▪ Heat up a space
▪ Cool down a space
INFORMATION
Heating is only applicable in case of reversible models.
INFORMATION
If underfloor heating is installed in the main zone, then in
cooling mode the main zone can only provide refreshment.
Real cooling is then NOT allowed.
3.1
Components in a typical system
layout
c
A
a
b
e
d
B
C
A
Main zone.
Example:
Living room.
B
Additional zone.
Example:
Bedroom.
C
Technical room.
Example:
Garage.
a
Outdoor unit
b
Underfloor heating
c
Fan coil units
d
User interface
e
Dedicated Human Comfort Interface (BRC1HHDA used as
room thermostat)
4
Quick guide
4.1
User permission level
The amount of information you can read and edit in the menu
structure depends on your user permission level:
▪
User
: Standard mode
▪
Advanced user
: You can read and edit more information
To change the user permission level
1
Go to [B]:
User profile
.
User profile
B
2
Enter the applicable pin code for the user permission
level.
—
▪ Browse through the list of digits and change the
selected digit.
▪ Move the cursor from left to right.
▪ Confirm the pin code and proceed.
User pin code
The
User
pin code is
0000
.
0000
User
Advanced user pin code
The
Advanced user
pin code is
1234
. Additional menu items for the
user are now visible.
Summary of Contents for EWAA004D2V3P-H
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