CIAT DynaCIAT LG User Manual

6.11 - Master/Slave assembly
The control system allows for master/slave control of two units
linked by the network. The master unit can be controlled locally,
remotely or by network commands (proprietary protocol), while
the slave unit remains in Network mode.
All control commands to the master/slave assembly (start/stop,
setpoint selection, heating/cooling, etc.) are handled by the unit
which is congured as the master. The commands are transmitted
automatically to the slave unit.
If the master chiller is turned o󰀨 while the master/slave function
is active, then the slave chiller will be stopped. Under certain
circumstances, the slave unit may be started rst to ensure that
the run times of the two units are equalised.
In the event of a communication failure between the two units,
each unit will return to an autonomous operating mode until the
fault is cleared. If the master unit is stopped due to an alarm, the
slave unit is authorised to start.
IMPORTANT: Master/slave assembly can be congured only
by service technicians.
6.12 - Night mode
Night mode allows users to congure the unit to operate with
specic parameters in a specic time period. During the night
period, the unit capacity is limited. The number of operating fans
is reduced (in cooling mode only).
The night period is dened by a start time and an end time that
are the same for each day of the week. The Night mode settings
or the maximum capacity value can be configured via the
Conguration menu (GENCONF – General Cong). Only logged-
in users can modify the night mode settings.
To set the night mode
1. Navigate to the Conguration menu (logged-in users only).
2. Select General Cong (GENCONF).
3. Set parameters corresponding to the night mode.
Night Mode Start Hour [nh_start]
00:00 to 24:00
Night Mode End Hour [nh_end]
00:00 to 24:00
Night Capacity Limit [nh_limit]
0 to 100% 100%
6.13 - Brine option (option 5, option 6)
Dynaciat units o󰀨er di󰀨erent cooler uid types, including standard
water uid as well as the optional brine uid, i.e. medium brine
(option 5), low brine (option 6). The brine option is commonly
used for low temperature applications.
NOTE: This option requires the Software Activation Key
(see section 6.16).
6.14 - BACnet (option 149)
The BACnet/IP communication protocol is used by the building
management system or the programmable controllers to
communicate with the Connect Touch control.
NOTE: This option requires the Software Activation Key
(see section 6.16).
6.15 - Modbus (option 149B)
The Modbus communication protocol is used by the building
management system or the programmable controllers to
communicate with the Connect Touch control.
NOTE: Modbus option is provided as standard.
6 - STANDARD CONTROL OPERATIONS AND OPTIONS
DYNACIAT LG/LGN EN-40

CIAT DynaCIAT LG Specifications

General

Brand	CIAT
Model	DynaCIAT LG
Category	Chiller
Language	English