Envicool EMW90HDNC1A - 4.3 System Operation and Modes; 4.5 Status, Records, and Graphics

User Manual
4 Controller
18
EMW90HDNC1A Air-cooled Chiller
Icon
Description
Water circulation icon indicates that the
unit is in water circulation state and the
circulating pump is in working state.
Refrigeration icon indicates that the unit
is in refrigeration state and the
compressor is in working state.
Heating icon indicates that the unit is in
heating state and the water heater is in
working state.
Water replenishment icon indicates that
the unit is in water replenishment state.
Alarm icon, indicating that the current
unit has an alarm.
4.3 System Start-up and
Shutdown
After the chiller is powered on, if the compressor does not
start, the heating belt will automatically start heating.
When the chiller is powered on for the first time, it is
necessary to ensure that the heating time of the
compressor heating belt is not less than 4 hours before
starting up the chiller.
When the ambient temperature is too low, it may cause
the lubricating oil in the compressor to solidify. Therefore,
when the chiller is powered on for the first time in a low
temperature environment, it is necessary to perform a
4-hour live standby treatment on the unit to ensure that
the compressor heating belt is preheated for a sufficient
period of time.
After clicking the switch button every time, the
system switches the working state of the current
chiller.
The dialog box that pops up when the chiller is
start up is shown in Figure 4-3
Figure 4-3 System start-up
After start-up, the status of chiller changes from
"Key Off" to "Running". On any interface, if there
is no keyboard operation for 180 seconds, the
system will automatically return to the homepage
interface.
The dialog box popped up when shutting down is
shown in Figure 4-4.
Figure 4-4 System shutdown
After shutdown, the status of water chiller
changes from "Running" to "Key Off".
4.4 Set the Operation
Mode
Each time the button after the Mode parameter is
clicked on the homepage interface of the control
system, the system switches the operating mode
of the chiller in turn. See Table 2-3 for details
about the operating modes.
4.5 Status
Click Status on the homepage interface of the
system to view the current environmental status,
operating status and group control status
(optional) of the chiller.