Pelican Wireless · Thermostat
Pelican Wireless TC4 Commercial Thermostat with Humidity and CO₂
Connected commercial thermostat with temperature, humidity and CO₂ sensing for Pelican building controls. Requires a Pelican Gateway.
Will this work with my system?
Match your equipment to these requirements before ordering.
Works with
- 24 V AC conventional and heat-pump systems; two-/four-pipe fan coils per wiring guide; zoning requires the separate Pelican zoning design
- Staging: Conventional: up to 2 heating / 2 cooling stages; heat pump: up to 2 compressor stages plus auxiliary/emergency heat. Two-speed fan configurations reduce available stage outputs.
System requirements
- Supply voltage: 24 V AC nominal, 60 Hz; operating range 23–30 V AC
- Power: Hardwired AC
- Wiring: Configuration-dependent: direct wiring uses R/C; included wiring module supports a minimum three-wire R/C/D link. Not a wire-free or battery-powered installation.
- Electrical load limits: 2.0 A running on Y, Y2, W, W2 and G; TC4 Hu/Dh: 1.0 A running
- Connection: Pelican mesh network; not Wi-Fi
Limitations & exclusions
- Not a battery-powered or wire-free thermostat; hardwired power is required.
Check before you buy
- Match the equipment type, stages and fan speeds to the exact TC-model wiring diagram; two-speed fan configurations reduce available stage outputs.
- Confirm a Pelican gateway and mesh connection for configuration and remote management.
- Check the R/C wiring or the included module’s minimum three-wire R/C/D connection against the installation guide.
Installation & configuration details
- PEARL and TA1 are optional accessories with application-specific wiring and configuration. A TC thermostat supports one PEARL and one TA1.
- PEARL demand-based ventilation requires a CO2-sensing TC3 or TC4 and appropriate connected equipment.
Manufacturer documentation (2)
Use these documents to compare your exact model and configuration.
Overview
Part of the Pelican Wireless system. See the system overview for component roles and selection requirements.
The TC4 is a touchscreen thermostat for commercial spaces using Pelican building controls. It combines local temperature adjustment with centrally managed schedules and operating information through the Pelican web application. TC4 adds built-in relative-humidity and carbon-dioxide sensing, with dedicated humidification and dehumidification outputs for suitable equipment.
Equipment and system requirements
A Pelican Gateway is required to configure and manage this thermostat. Its radio communicates over Pelican’s mesh network rather than directly over Wi-Fi. Check the building’s gateway and network arrangement before selecting this product.
The installation guide covers conventional equipment, heat pumps and two- or four-pipe fan coils. Output assignments change with the equipment and fan configuration; the guide must be checked against the actual system. Pelican zone-damper applications use additional system components and their separate installation guide.
Occupant controls and scheduling
The touch interface supports local adjustment subject to administrator restrictions. The system provides daily, weekday/weekend and seven-day scheduling, temporary schedule overrides, vacation operation, keypad lockout and adjustable heat/cool setpoint limits.
Installation considerations
This is a hardwired 24 V AC device. The supplied limited-wiring module can be used where the equipment-to-thermostat connection has at least three suitable conductors. It does not eliminate the need for power and a common connection at the installed components. Use the model-specific manual for wiring and siting.
Technical document notes
Pelican’s current series data sheet and product page disagree on dimensions and the lower ambient operating limit. Those values are intentionally omitted here pending confirmation of the applicable hardware revision. The CO₂ calibration certificate also includes an accuracy qualifier that is absent from the shorter data-sheet statement; consult the certificate before using the reading for a specified accuracy requirement.
Product details
- Manufacturer
- Pelican Wireless
- SKU
- 190135
- Model / MPN
- TC4
- Condition
- New
- Lifecycle
- Current
Specifications
- Power sources
- Hardwired AC
- Supply voltage
- 24 V AC nominal, 60 Hz; operating range 23–30 V AC
- Communication protocols
- Pelican mesh network; not Wi-Fi
- Wireless standards
- IEEE 802.15.4
- Radio bands
- 2.4 GHz
- Operating humidity
- 5–90% RH, non-condensing
- Storage temperature
- −20°F to 160°F
- Remote management
- Pelican web application through a Pelican Gateway
- Supply current
- 105 mA at 24 V AC, 60 Hz
- Control functions
- Temperature; humidity
- Equipment types
- 24 V AC conventional and heat-pump systems; two-/four-pipe fan coils per wiring guide; zoning requires the separate Pelican zoning design
- Stage modes
- Conventional: up to 2 heating / 2 cooling stages; heat pump: up to 2 compressor stages plus auxiliary/emergency heat. Two-speed fan configurations reduce available stage outputs.
- Control signal types
- Switched 24 V AC HVAC outputs; follow model-specific terminal diagrams
- Scheduling modes
- Daily, 5-2 and 7-day scheduling through the Pelican web application
- Schedule periods per day
- Up to 12 scheduled set times per day; maximum only, not a verified list of selectable counts
- Keypad lockout
- Administrator-managed and schedulable lockout; exact selectable levels not established
- Setpoint limits
- Administrator can limit heating and cooling setpoint adjustment; exact configurable bounds not established
- System modes
- Auto, Heat, Cool and Off; selectable modes depend on configuration
- Local controls
- Touchscreen
- Hold options
- Temporary schedule override and vacation mode; durations depend on configuration
- Mounting methods
- Interior wall or vertical single-gang electrical box; avoid metal surfaces/enclosures
- C wire requirement
- Configuration-dependent: direct wiring uses R/C; included wiring module supports a minimum three-wire R/C/D link. Not a wire-free or battery-powered installation.
- Measured variables
- Temperature, relative humidity, carbon dioxide
- Measurement channels
- CO₂ detection range: 400–2000 ppm; accuracy omitted pending reconciliation of calibration certificate and datasheet
- Contact ratings
- 2.0 A running on Y, Y2, W, W2 and G; TC4 Hu/Dh: 1.0 A running
- Fan modes
- Auto and On; High/Low selections depend on equipment configuration
- Humidity control modes
- Humidification and dehumidification via dedicated Hu/Dh outputs with appropriate external equipment; not merely humidity display
Documents & downloads
- Installation guide (PDF)
TC4 Installation Guide (PDF)
- Specification sheet (PDF)
TC Series Datasheet — see technical document notes (PDF)
- Installation guide (PDF)
Zone Damper Installation Guide — system reference (PDF)
- Wireless Network and Installation Planning Guide — system reference (PDF) (PDF)
- CO₂ Calibration Certificate (PDF) (PDF)
- Section 23 09 22: Climate Management Controls for HVAC — system reference (PDF) (PDF)
- Network Security — system reference (PDF) (PDF)
- Wireless Communication Frequency — system reference (PDF) (PDF)
- Warranty (PDF)
Warranty — system reference (PDF)
Optional components
Pelican Wireless
Pelican Wireless PEARL Advanced Equipment Controller
Model PEARL SKU 190108
Pelican thermostat accessory for economizer, ventilation, variable-speed fan and modulating equipment control.
- Supply voltage
- 24 V AC, 60 Hz
- Communication protocols
- Three-wire connection to a Pelican thermostat
- Power sources
- Hardwired AC
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Pelican Wireless
Pelican Wireless TA1 Temperature and Alarm Sensor
Model TA1 SKU 190104
Wired sensor accessory for temperature monitoring, averaging, or a dry-contact input on a compatible Pelican device.
- Communication protocols
- Pelican three-wire R/C/D connection
- Mounting
- Flat surface in a moisture-free location; device is not waterproof
- Power sources
- Hardwired AC
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