4
E 121 - DTU 614
C2 Eng.
04.07.01
We reserve the right to make changes without notice
COSTER
9. WHERE TO PLACE DEVICES
9.
1
Controller
The controller should be placed in a dry environment, in compliance with acceptable environment conditions as
described under “Technical Data”. If located in environments classified as “hazardous” it should be installed within
switchboards built in accordance with applicable regulations depending on hazard class.
The controller may be installed on the board’s bottom on a DIN rail, or in DIN modular boards
9.
2
Flow temperature detector B1
B1 must be installed downstream with respect to the flow fan.
9.
3
Outside temperature detector B2
STA 001 : It may be used in systems with constant outside air inflow. It must be installed upstream with respect to
the outside air dampers near the air intake.
SAE 001 : It should be used in systems where outside air flow is not constant. It must be installed outside the
building, on the north or northwest side, at a height of at least 3 m. above the ground, protected from sunshine and
away from windows, doors, chimneys or other direct thermal interference.
9.
4
Room temperature or extract air detector – B3, or room temperature and humidity detector B3 + B6
SAB 010 or SAU 012 environment : It must be installed in a spot that reflects the average temperature and/or
humidity of a significant room (e.g. living room) at a height of 1.5...1.6 m. above the floor, on an inside wall away from
windows, doors and sources of heat (no alcoves, scaffolds or hangings).
STA 010 extract air: It should be installed upstream with respect to the extract fan.
9.
5
Duct mounting humidity detector B6
Extract air: It must be installed upstream with respect to the extract fan.
Discharge air: It should be installed downstream with respect to the discharge fan.
9.
6
Preheating temperature detector B4
It must be installed downstream with respect to the humidifying unit, preferably downstream of the drop separator.
9.
7
Swimming pool window dew point temperature detector B4
It should be installed in contact with windows facing north.
9.
8
Frost protection temperature detector B7
It should be installed downstream of the preheating battery, in contact with the battery (flush detector SAF 010) or
immersed on the battery outflow piping.
8. WIRING
Procede as follow :
• Separate the base from the cover
• Install the base onto the DIN rail and check that it is properly anchored by the securing elements (5.
4
)
• Perform the wiring connections as illustrated in the diagram, in compliance with applicable regulations and using:
– 1.5 mm
2
cables for supply voltage and relay control outputs
– 1 mm
2
cables for the detectors and remote control
– 1 mm
2
cables for the C-Bus. See sheet T 021 for length limits
• Apply power (24 V~) and make sure voltage properly reaches terminals 24 and 0.
• Remove power, re-install the cover onto the base/terminal board, and fasten it with the 4 screws included in the
package (5.
3
).
It is recommended not to insert more than two cables in a single controller terminal. Use external terminals if
necessary.
