Water Charge, Flow And Quality . Errore. Il - Daikin EWWD120J-SS Bersetzung Der Originalanweisungen

supplied Victaulic
evaporator outlet(s).
•
After installation of the water inlet and otlet
pipes and as a geheral rule for other units, it
is recommended to check the insertion depth
of the water temperature sensors into the
connection pipes prior the operation (see
figure).
Connecting the filter
•
The filter kit supplied with the unit must be
installed in front of the evaporator water inlet
by means
couplings as shown in the figure. The filter
has holes of diameter 1,0 mm and secures
the evaporator against clogging.
•
Improper installation of the supplied filter will
result in severe damage of the equipment
(freezing of the evaporator).
A field supplied blow down port for flushing fluid and
accumulated material from inside the filter can be
connected on the filter end cap.
•
Connecting the counter pipes
Weld the supplied counter pipes to the ends of the
water circuit and connect to the unit with the provided
Victaulic® couplings.
2 Drain taps must be provided at all low points of the
system to permit complete drainage of the circuit during
maintenance or in case of shut down. The drain plug is
provided to drain the condenser. When doing this, also
remove the air plugs (refer to the outlook diagram).
3 Air vent must be provided at all high points of the
system. The vents should be located at points which
are easily accessible for servicing.
4 Shut-off valves should be provided at the unit so that
normal servicing can be accomplished without draining
the system.
5 Vibration eliminators in all water piping connected to the
chiller are raccomended to avoid straining the piping
and transmitting vibration and noise.
6 For units in double circuit configuration with common
leaving water control (ELWT), be sure to foresee an
insertion hole for the additional water temperature
sensor. Sensor and sensor holder are optional parts.
The insertion hole shall be 1/4" GAS female thread and
should be located in the mixed waterflow of the chillers.
Make sure that the sensortip is in the waterflow and that
you have a length of straight pipe (L) of at least 10x the
pipe diameter (A) before the sensor.
® couplings to the
of the supplied Victaulic®
Choose the position of insertion in a way that the cable length
of the sensor (10 m) is long enough.
12. WATER CHARGE, FLOW AND
QUALITY
To assure proper operation of the unit, the water flow through
the evaporator must be within the operation range as specified
in the table below and a minimum water volume is required in
the system.
Model
EWWD120J - EWLD110J
EWWH090J – EWLH080J
EWWS120J – EWLS110J
EWWD140J - EWLD130J
EWWH110J – EWLH100J
EWWS140J – EWLS130J
EWWD150J - EWLD145J
EWWH120J – EWLH110J
EWWS150J – EWLS150J
EWWD180J - EWLD165J
EWWH130J – EWLH130J
EWWS180J – EWLS170J
EWWD210J - EWLD195J
EWWH150J – EWLH140J
EWWS210J – EWLS200J
EWWD250J - EWLD235J
EWWH180J – EWLH170J
EWWS240J – EWLS240J
EWWD280J - EWLD265J
EWWH120J – EWLH190J
EWWS270J – EWLS270J
The minimum water volume v [l] in the system must fullfill the
criteria below:
Q highest cooling capacity of the unit in lowest
capacity step within the range of application (kW)
t antirecycling timer of unit (AREC)/2(s)=300 s
C specific heat capacity of the fluidum
(kJ/kg°C)=4,186 kJ/kg°C for water
∆T temperature difference between starting and
stopping of the compressor:
∆T=a+2b+c
(for designation of a, b and c, refer to the
operation manual
NOTE For units in a double circuit configuration, the
minimum required water volume in the system
must equal the biggest required minimum
volume of every individual chiller in the system.
D-EIMWC01008-16_01EU - 13/171
Minimum Maximum
water flow water flow
[l/min] [l/min]
168 671
195 780
221 883
255 1021
290 1158
357 1428
397 1588
v>(Q/2)xT/(Cx∆T)