Schneider Electric
TC900-4-4S
SpaceLogic TC900 Series • HVAC Controller
Quick Info
Type
HVAC
Application
FCU Control
Probe Inputs
2
Relay Outputs
4
Communication
BACnet MS/TP, Modbus RTU
Panel Size
- mm
Output Functions
R1
Fan Low
R2
Fan Med
R3
Fan High
R4
Valve
Programmable fan coil thermostat with LCD display and BACnet
Technical Specifications
Display & Interface
| Display Type | LCD |
| Display Digits | - |
| Buttons | 5 |
Power Supply
| Voltage | 24V AC |
| Voltage Range | 20-30V AC |
| Frequency | 50/60Hz |
| Power Consumption | 3VA |
Sensor Inputs
| Probe Inputs | 2 |
| Probe Type | Internal NTC + External Option |
| Temp Range | 0 to 50°C |
| Accuracy | ±±0.5°C |
Relay Outputs
| Relay Outputs | 4 |
| Relay Rating | 2A/24VAC |
Physical
| Panel Size | - mm |
| Depth | - mm |
| IP Rating | IP30 |
Operating Conditions
| Operating Temp | 0 to 50°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| 24V AC Power | Power |
power
|
|
| 24V AC Common | Power |
power
|
|
| Fan Speed 1 | Output |
relay
|
|
| Fan Speed 2 | Output |
relay
|
|
| Fan Speed 3 | Output |
relay
|
|
| Valve Output | Output |
relay
|
|
| BACnet/Modbus | Communication |
comm
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SP | Temperature Set Point | 10~32 | 22 °C | |
| dB | Dead Band | 1~5 | 2 °C | |
| FAN | Fan Mode | Auto/Low/Med/High | Auto | |
| MODE | System Mode | Heat/Cool/Auto/Off | Auto | |
| OCC | Occupancy | Occ/Unocc/Standby | Occ | |
| Adr | BACnet Address | 1~127 | 1 |
Error Codes
E1