CIAT microciat MRS1 Consignes D'installation, Fonctionnement Et Maintenance page 3

6 Control
6.1 Type of control
6.2 Standard control
6.3 PIDT control
6.4 Forced control with transfer
6.5 Forced control without transfer
6.6 Control temperature laws as a function of
external temperatures
6.7 Control for "CRISTOPIA" storage
7 Study of functions
7.1 Chilled water temperature control
7.2 Hot water temperature control
7.3 Starting sequence
7.4 Automatic re starting
7.5 Water circulation fault
7.6 Frost limit
7.7 Load limit
7.8 Low outside temperature
operating safety device
7.9 High pressure operating safety device
7.10 Compressors safety device :
- Anti short cycle
- High pressure
- Low presure
- Oil pressure safety
- Compressor motor overload
- Discharge temperature control
7.11 Counting
7.12 Load shedding
8 Sensors
8.1 Characteristics
8.2 Indications
9 Compressors operating
validation
10 Settings
10.1 Number of settings
10.2 Adjustment of settings
11 Control and external commands
11.1 Maximum output
11.2 Water pump control
11.3 General fault
11.4 Heating / cooling selection
11.5 Setting 1 / setting 2 selection
11.6 Forced stages control
11.7 Automatic control
11.8 Load shedding
11.9 Client's connection of inputs
12 Test mode
13 Start up
14 Remote control of the unit
15 Relay cards
16 Communication mode
17 MRS1 4 MODBUS protocol
Annex 1 : Connection for liaison
series RS 485 (2 wires)
Annexe 2 : Connection fo rliaison
series RS 485 (4 wires)
Significance of display lights
3