3.1.2
Schematic of the T° sensors positioning in the unit
To allow easier identification of the temperature sensors 4 different wire colors are used:
-
T1 : black wire
-
T2 : white wire
-
T3 : blue wire
-
T5 : green wire
3.2 Power supply to the fans, control devices and to the electrical post heating coil KWout
Wiring specifications:
Supply
KWout
Voltage
heating
(1)
capacity
1 x 230V
3 kW
(4)
Grounding is compulsory
(5)
For airflow range from minimum to nominal (1000 m3/h) + 20%.
(6)
D type "slow" reaction curves - shutoff power 10.000A - AC3.
4. TAC5 CONTROL SYSTEM
The TAC5 control device manages the following features:
-
Fan airflow management (accurate knowledge of fan's working point)
-
Management of time slots
Automatic bypass control (freecooling and/or antifrost protection)
-
Heat exchanger anti-freeze protection control
-
-
Automatic motorized inlet damper control
-
Electrical pre-heater control (option)
-
Electrical Post-heater
The TAC5 control circuit is factory pre-wired.
There are 5 ways to 'communicate' with the TAC5 control:
-
RC (LCD remote control)
-
GRC (graphic touchscreen display, can control up 247 units)
-
MODBUS RTU network (usually to connect to a BMS)
-
MODBUS TCP/IP protocol (to connect to a BMS or to interface with EOLE 4 App for smartphone, tablet
and PC using operating systems Android, IOS or Windows 7/8/10).
-
KNX network
The following options can be combined with TAC5 control:
-
RC Option: remote control to setup, control and visualize the parameters.
Please refer to MI Regulation TAC5 HR REC CF installation and user's manual for detailed information
-
GRC Option: graphic remote touchscreen to setup, control and visualize the parameters.
Please refer to TAC5 – GRC installation and user's manual for detailed information
-
SAT BA/KW Option:
Maximum amps
Protection type (3)
(2)
2 x 1,5 A + 13A
D – 10.000A – AC3
Protection caliber
20A
31