PremierLink control can monitor return filter status in two ways: By monitoring a
Using switch input: Install the dirty filter pressure switch according to switch manufacturer’s instructions, to measure pressure drop across the unit’s return filters. Connect one side of the switch’s NO contact set to CTB’s
Filter Switch (NO, close on rising pressure (high drop))
CTB
Thermostat
R
TB1PL
10
C08216
Fig. 41 - PremierLink Filter Switch Connection
When the filter switch’s NO contact set closes as filter pressure drop increases (indicating
Using Filter Timer Hours: Refer to Form
Supply Fan Status Switch — The PremierLink control can monitor supply fan operation through a
Install the differential pressure switch in the supply fan section according to switch manufacturer’s instructions. Arrange the switch contact to be open on no flow and to close as pressure rises indicating fan operation.
Connect one side of the switch’s NO contact set to CTB’s
Fan (Pressure) Switch (NO, close on rise in pressure)
CTB
Thermostat
R
TB1PL
8
C08118
Fig. 42 - PremierLink Wiring Fan Pressure Switch
Connection
Remote Occupied Switch — The PremierLink control permits a remote timeclock to override the control’s
Occupied mode. This function may also provide a “Door Switch” time delay function that will terminate cooling and heating functions after a
Connect one side of the NO contact set on the timeclock to CTB’s
Remote Occupied | CTB |
|
Thermostat |
| |
|
| |
| R |
|
Time Clock | TB1 | PL |
| ||
| 2 |
C08214
Fig. 43 - PremierLink Wiring Remote Occupied
Refer to Form
Space Relative Humidity Sensor — The RH sensor is not used with these 50Hz 50TC models at this time.
CCN Communication Bus — The PremierLink controller connects to the bus in a daisy chain arrangement. Negative pins on each component must be connected to respective negative pins, and likewise, positive pins on each component must be connected to respective positive pins. The controller signal pins must be wired to the signal ground pins. Wiring connections for CCN must be made at the
At any baud (9600, 19200, 38400 baud), the number of controllers is limited to 239 devices maximum. Bus length may not exceed 1219 m (4000 ft), with no more than 60 total devices on any 305 m
NOTE: Carrier device default is 9600 band.
COMMUNICATION BUS WIRE SPECIFICATIONS — The CCN Communication Bus wiring is
See Table 7 for recommended cable.
Table 7 – Recommended Cables
MANUFACTURER | CABLE PART NO. |
|
|
Alpha | 2413 or 5463 |
|
|
American | A22503 |
|
|
Belden | 8772 |
|
|
Columbia | 02525 |
|
|
50TC
25