UbiquiSTAT Multi-Stage RTU Controller with Dehumidification
UbiquiSTAT 4021 is a multi-stage rooftop unit (RTU) room controller with an on-board humidity sensor and dehumidification control. It handles conventional and heat pump staging applications, has seven relay outputs and a 4.3" color touchscreen, and communicates over BACnet MS/TP or TCSbus. It can run stand-alone or on a network with the TCS Ubiquity Cloud platform.
Key Features
- Built-in humidity sensor with dehumidification sequences (staged cooling, staged reheat)
- Seven SPST relay outputs
- 4.3" color touchscreen with quick-start wizard and system test screen
- Selectable BACnet or TCSbus communication; BACnet BTL Listed (B-ASC)
- Full-featured BACnet scheduling
- Four temperature inputs (one built-in, three remote)
- Three digital inputs (dry contact)
- Configurable Smart Recovery
- Network upgradeable firmware; backup and restore of settings
- Stand-alone or network operation; non-volatile memory
Specifications
| Relays |
7 SPST, 2 A max @ 24 VAC |
| Analog outputs / analog inputs |
None on this model |
| Power |
24 VAC +15%/-5%, 50/60 Hz, 10 VA max |
| Communication |
RS-485, BACnet MS/TP and/or TCSbus; 9,600 to 115,200 baud |
| Remote temperature inputs |
Three, Pt1000 RTD |
| Display |
4.3" color touchscreen |
| Dimensions |
6.7" x 4.9" x 1.4" (171 x 123 x 37 mm) |
| Color |
Glossy white |
| Operating temperature |
32°F to 131°F (0°C to 55°C) |
| Operating humidity |
0 to 100% RH non-condensing |
Compatible With
- TCS Ubiquity Cloud / QD2040 and QD3041 Building Managers
- TS3000 and TS2000 remote temperature sensors
- BACnet MS/TP networks
Documents & Downloads