SYSTEMP – Installation Operation Manual (IOM SYSTEMP rev.N)
Table Of Contents
- WARRANTY CONDITIONS
- 1 DESCRIPTION OF UNITS AND OPERATING LIMITS
- 2 TRANSPORTATION, POSITIONING AND INSTALLATION PROCEDURES
- 3 PLENUMS, VENTILATED PLENUMS AND DUCT SECTIONS (ACCESSORY)
- 4 FREE COOLING PLENUM (ACCESSORY)
- 5 ADJUSTABLE AND VENTILATED PLINTHS (ACCESSORY)
- 6 TMC AIR-COOLED CONDENSER PLACEMENT AND INSTALLATION
- 7 CONNECTION OF CONDENSATE DISCHARGE AND HUMIDIFIER
- 8 WATER CIRCUIT CONNECTIONS
- 9 COOLING CONNECTIONS
- 9.1 ROUTING OF THE COOLING CIRCUIT PIPES
- 9.2 COOLING CIRCUIT SIZING
- 9.3 COOLING CIRCUIT INSTALLATION
- 9.4 UNIT COOLING PIPE CONNECTION
- 9.5 AIR-COOLED CONDENSER CONNECTION
- 9.6 COOLING CIRCUIT VACUUM DRYING OPERATIONS
- 9.7 CHARGING THE COOLING CIRCUIT
- 9.8 PRECAUTIONS
- 9.9 LUBRICATING OIL FILLING IN THE CIRCUIT
- 9.10 TMC CONDENSER PRESSURE REGULATOR (ACCESSORY)
- 9.11 CHECKING THE REFRIGERANT LOAD AND COOLING CIRCUIT OPERATION
- 9.12 PRECAUTIONS AGAINST REFRIGERANT LEAKS
- 9.13 CHECKING THE MAXIMUM CONCENTRATION OF REFRIGERANT
- 10 EXAMPLES OF WATER AND COOLING CIRCUITS
- 10.1 EXAMPLE OF CHILLED WATER CIRCUIT
- 10.2 TMC AIR-COOLED CONDENSER COOLING CIRCUIT
- 10.3 COOLING CIRCUIT WITH SINGLE COMPRESSOR AND REMOTE CONDENSER
- 10.4 COOLING CIRCUIT WITH SINGLE COMPRESSOR AND WATER-COOLED CONDENSER
- 10.5 COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND REMOTE CONDENSER
- 10.6 COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND WATER-COOLED CONDENSER
- 10.7 TWO SOURCES WATER CIRCUIT WITH CHILLED WATER CIRCUITS
- 10.8 TWO SOURCES COOLING CIRCUIT WITH SINGLE COMPRESSOR AND REMOTE CONDENSER
- 10.9 TWO SOURCES COOLING CIRCUIT WITH SINGLE COMPRESSOR AND WATER-COOLED CONDENSER
- 10.10 TWO SOURCES COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND REMOTE CONDENSER
- 10.11 TWO SOURCES COOLING CIRCUIT WITH DOUBLE COMPRESSOR AND WATER-COOLED CONDENSER
- 10.12 COOLING CIRCUIT WITH FREE COOLING AND SINGLE COMPRESSOR
- 10.13 COOLING CIRCUIT WITH FREE COOLING AND DOUBLE COMPRESSOR
- 11 ELECTRICAL CONNECTIONS
- 11.1 RS485 SERIAL COMMUNICATION BOARD CONNECTION (Modbus RTU - BACnet MS/TP)
- 11.2 ETHERNET RJ45 PORT CONNECTION (Modbus TCP - BACnet IP - Web Server)
- 11.3 CANbus LAN CONNECTION (ACCESSORY)
- 11.4 REMOTE CONTROL TERMINAL CONNECTION (ACCESSORY)
- 11.5 WALL-MOUNTED TEMPERATURE AND HUMIDITY PROBE CONNECTION (ACCESSORY)
- 11.6 DUCTED TEMPERATURE AND HUMIDITY PROBE CONNECTION (ACCESSORY)
- 11.7 CONNECTION OF THE SMOKE AND FLAME DETECTORS SUPPLIED (ACCESSORY)
- 11.8 WATER DETECTION PROBE CONNECTION (ACCESSORY)
- 11.9 CONNECTION OF FREE COOLING PLENUM MOTORISED DAMPER ACTUATORS (ACCESSORY)
- 11.10 AIR-COOLED CONDENSER POWER SUPPLY AND REGULATION CONNECTION (ACCESSORY)
- 12 ROUTINE AND SPECIAL MAINTENANCE
- 13 DEACTIVATION, DISMANTLING AND DISPOSAL
- 14 APPENDIX 1: RECOMMENDED EQUIPMENT
- 15 APPENDIX 2: PRELIMINARY CHECKS AND FIRST START-UP
- 16 APPENDIX 3: FAULT DIAGNOSIS
- 17 NOTES
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11.1 RS485 SERIAL COMMUNICATION BOARD CONNECTION (Modbus RTU - BACnet MS/TP)
The SySmart
3
microprocessors can be connected to a supervision and/or BMS (Building Management System) network,
which adopts the Modbus RTU (Standard) or BACnet MS/TP (Accessory) protocol through a dedicated RS485 serial board.
Using this type of board it is also possible to connect the gateways necessary to interface the SySmart
3
with networks that
use dierent protocols to those available as accessories.
To create a connection to the RS485 board, simply connect the units from the terminals on it (see wiring diagram for further
information):
A Unit 1
B Unit 2
C BMS / Supervision system/Gateway
D RS485 output terminals
E RS485 input terminals
F RS485 connection cable
In order to guarantee correct serial communication between the network-connected units, it may be necessary to insert a
120 Ω terminating resistor.
SySmart
3
microprocessors tted with suitable micro switches for activating suitable 120 Ω terminating resistors if set to ON.
Set micro switch RS485LT2 (1) to ON to activate the 120 Ω
terminating resistor
The type of cable to be used for the connection must have the following features:
Main features of serial communication cable
Type Data transmission cable
Application EIA RS485 Interface
Shielding Tinned copper braid - Cover at least 65%
Cross-section and number of conductors 2 x 0.35 mm
2
- AWG 22 + 1 x 0.35 mm
2
- AWG 22
Stranding Twisted pairs
Nominal loss (1 MHz) dB/100m 1.64
Maximum DC resistance for conductor at 20°C Ω/km 49
Insulation resistance at 20°C MΩ*km 5000
Mutual capacitance c-c / c-s nF/km 40 - 70
Inductance mH/km 0.7
Impedance Ohm 120 +/- 0.12
Maximum length m 100
Example
A
D
B
C
F
D E
F