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Air cooled inverter water chiller
OPERATION
MANUAL
Operation Manual
54
EWAD TZ B 160-700
Air cooled inverter water chiller
D-EOMAC00909-16EN
compressor to operate within its envelope. This setpoint is further increased (see figure below) by
a quantity which depends from outside ambient temperature and compressor load in achieve the
best efficiency point, i.e. minimum energy consumption of compressor and fans.
5.4.1 Fan Settings
The unit may be equipped with on/off fans, inverter fans or brushless fans. Based on the fan type,
different settings are required to the chiller controller and/or to the inverters.
5.4.1.1 Controller Settings
Controller settings for fans can be reviewed and changed in the menu
Commission Unit Configuration Unit
Fan
Configuration
On/Off
Inverter
Brushless
Fan Type
AC700 (default, 700
rpm)
AC900 (optional, 900
rpm)
AC700 (default, 700 rpm)
AC900 (optional, 900 rpm)
AC900L (optional, 700 rpm, up to 900
rpm)
EC900L (optional, 700 rpm, up to 900
rpm)
EC900 (optional, 900 rpm)
EC700 (optional, 700 rpm)
EC1000L (optional, 700 rpm, up to 1000
rpm)
On/Off and brushless fans do not need any additional settings. Inverter fans need instead to be set
up according to the list described in the following chapter.
Fans are activated according to the difference between the saturated condenser temperature and
the condensation target determined by the controller. If this difference exceeds the stage up or
stage down settings, an error accumulation is calculated. Once the error accumulation exceeds a
fixed threshold, a new step is activated or deactivated. If the saturated temperature returns to
within the deadband area, the error accumulation is cleared.
5.4.2 Fan VFD Settings
Units may be equipped optionally or as a standard with fan VFD control. Each circuit is organized
with two steps, arranged as per the following table. The two stages are activated according to the
same logic as described in the previous chapter.
Evap. Sat. Temp.
Cond. Sat. Temp.
Min Cond Press
Cond Press @ 30%
load
Cond Press @ 50%
Load
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Productinformatie
| Merk | Daikin |
| Model | EWAD620TZPLB |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11976 MB |
