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TC903-3A4LA Schneider SpaceLogic Hotel Room Wall Thermostat On/Off Valve LCD 240V White Frost Guard
Product Summary
TC903-3A4LA Schneider SpaceLogic Hotel Room Wall Thermostat On/Off Valve LCD 240V White Frost Guard Product Overview The TC903-3A4LA is a stand-alone fan coil room thermostat from the Schneider Electric SpaceLogic TC900 range, supplied in white for four pipe applications. Designed to operate ...
Basic Properties
Place of Origin:
EU
Brand Name:
Schneider
Certification:
CE RoHS
Model Number:
TC903-3A4LA
Trading Properties
Minimum Order Quantity:
5
Payment Terms:
T/T
Product Description
TC903-3A4LA Schneider SpaceLogic Hotel Room Wall Thermostat
On/Off Valve LCD 240V White Frost Guard
Product Overview
The TC903-3A4LA is a stand-alone fan coil room thermostat from the Schneider Electric SpaceLogic TC900 range, supplied in white for four pipe applications. Designed to operate terminal units directly without any supervisory connection, this thermostat ensures reliable climate control regardless of network availability or building management system status.
Standalone operation ensures continuous room climate control during network outages, commissioning delays, or ownership changes.
The intuitive five-button interface with liquid crystal display provides clear visibility of temperature, mode, and fan speed settings. With three-speed fan output compatibility and built-in frost protection and economiser logic, this thermostat protects both terminal unit equipment and occupant comfort.
Technical Specifications
| Product Type | Stand-alone fan coil room thermostat |
| Order Number | TC903-3A4LA |
| Range | SpaceLogic TC900 series |
| Control Action | On and off valve control for four pipe terminal unit |
| Operation | Stand-alone, no network connection required |
| Interface | Liquid crystal display with five button operation |
| Fan Control | Three fan speeds |
| Built-in Sensing | Room temperature sensing element within thermostat |
| Built-in Functions | Economiser logic and frost protection |
| Supply Voltage | 90 to 240 V AC, 50/60 Hz |
| Color | White |
| Mounting | Wall mounted, room side, screw terminal connections |
| Compliance | CE marking; RoHS and REACH declarations |
System Integration
Commissioning involves parameter setup rather than programming. Critical settings include fan speed modes, setpoint limits to prevent extreme temperature settings, and appropriate changeover behavior for the terminal unit.
- Four-pipe units require proper circuit activation decisions based on water temperature sensors
- Wide voltage range (90-240V AC) accommodates both 110V and 230V systems
- Optimal wall placement is essential - avoid locations near heat sources, lamps, or drafts
Application Scenarios
- Hotel Guest Rooms: Immediate, predictable operation without network dependency
- Office Spaces: Cellular rooms and small meeting rooms where local control suffices
- Serviced Apartments: Intuitive operation for owners and occupants
- Healthcare Facilities: Clinics and consulting rooms with safety-focused frost protection
- Retrofit Projects: Ideal where existing wiring provides mains supply without communication cabling
Product Details
Highlight:
Schneider SpaceLogic hotel thermostat
,wall thermostat with frost guard
,fan coil controller LCD 240V
Controlmethod:
Electrical And Manual Override
Outputtype:
Triac/Relay/0-10V
Rated Load Specification:
8 Channels * 250V AC / 20A
Rated Voltage:
Main Circuit AC 230-250V
Special Feature:
Manual Override / Local Operation
Material:
Fire-retardant Plastic Housing
Mounting:
DIN-rail Mounting In Electrical Cabinet
Ms. Nora
Sales Manager
- Email: nora@knxcomponents.com
- Tel: +8613427540176
- WhatsApp: 8613427540176
-
WeChat:
+8613427540176
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