EWAP400~540MBYNN
Packaged air-cooled water chillers
4PW22678-1B
Installation manual
8
Setting of the probe offset
It is possible to enter a correction value for certain measured
temperatures (inlet water evaporator temperature and mixed outlet
water evaporator temperature). This in order to correct a possible
measurement fault. The default value of the probe offset, is equal to 0.
Steering the pump manually
There is the possibility to turn the pump on or off manually. This
means that when the unit is off the pump can also be turned on at
any time to check the pump.
Defining the BMS settings
The BMS parameters allowing communication between the unit and
the supervisory system can be modified with the
and
the
screen of the service menu. The BMS
parameters are:
screen:
■
: if set to
(yes), the unit can be
commanded and configured from a supervisory system. If set to
(no), the supervisory system can only read out values but
cannot modify them.
■
: used to address the PCB.
■
: indicates the communication protocol. If the optional
gateway is used to connect the units to a supervisory system,
the protocol is
.
screen:
■
: indicates the type of serial connection. The default
is set to
*)
.
■
: indicates the speed of communication. The default
setting of
+ ,-.
must be used when the optional gateway
is connected.
Defining the thermostat settings
Defining the thermostat settings for inlet and outlet water temperature
of a, b and c can only be set in the service menu.
H
OW
TO
CONTINUE
After installation and connection of the packaged air-cooled water
chiller, the complete system should be checked and tested as
described in "Checks before initial start-up" in the operation manual
supplied with the unit.
Fill out the brief operation instructions form and fix it visibly near the
operating site of the refrigeration system.
N
OTES
To define the thermostat settings of the
inlet water temperature.
&'
"* ") "#
")#
