Operations & Maintenance Manual
January 2002
Doc: TC02 O&M
Page 5 of 20
Status:
Final
issue: 11
©TB Controls 2011
Summer/Winter setting.
Return air temperature measurement in place of room stat for greater flexibility
Outside air temperature for fully automatic control.
RS485 network communications, MODBUS open protocol. Full BMS monitoring
and control.
Additional features (for room FCU control available, not supplied with curtain
heater controller
)…
Silent PID control of two 24VAC heating and cooling actuators, or dampers,
controlled by four snubberless triacs. Selectable room temperature setpoint from
values of 17, 19, 21, 23 and 25
C.
Lamp output for over-door welcome or security. The two spare triac outputs in an
airside system can be used to drive 230 VAC lamps as in the Ambassador unit.
On board real time clock for timed operation and event log time stamping.
Log of the last 500 system events.
Fan speed monitoring input to detect fan motor failure.
DPS filter dirty input.
RS485 network communications.
LCD
user display features for curtain heater…
Simple twin twisted pair connection to controller unit.
2 line 16-character LCD backlit display.
Three buttons for control, mode, plus and minus buttons.
Four fan speeds and off.
Summer Winter or Automatic mode.
Display of off coil temperature.
Engineering settings such as sensor offset and setpoint step.
2.3.
Connection terminals
To avoid incorrect wiring, terminals that can be connected to AC 230 V (Fan speed and
Lighting) are physically separate from the other terminals.
2.4.
Disposal
The controller contains electrical and electronic components and must not be disposed of
as domestic waste.
Current local legislation must be observed.
