What is the Carrier Connect™ 33CONNECTSTAT43FX Thermostat?   
 
 
 
 
Carrier Connect™ Wi-Fi Thermostat 33CONNECTSTAT43FX    CARRIER CORPORATION ©2021  
Installation Guide    All rights reserved 
  2 
 
Specifications 
 
Wi-Fi connectivity supports Wi-Fi: 802.11 a/b/g/n standards on 2.4 GHz networks 
Environmental 
temperature range 
Operating:  32° to 104°F (0° to 40°C)  
Storage:  -40° to 135°F (-40° to 57°C) 
Operating:  10% to 95%, non-condensing, 32° to 104°F (0° to +40°C) 
Storage:  10% to 95%, non-condensing 
Connectors P104 and P105. 2 banks of “finger friendly” spring type terminal blocks 
intended to be wired by the end-user or installer 
•  C - connection  
•  R - connection 
•  H - 0-10 Volt input 
•  T - remote thermistor 
Connections: Y3, O/B, Y2, Y1, G, W1, and W2 
Standard 4 x 2 in. electrical box using the 6-32 x 1/2 in. mounting screws and plastic 
wall anchors provided 
5.15 in. (13.1 cm) 
3.25 in. (8.2 cm) 
0.95 in. (2.4 cm) 
Conforms to the BACnet Application Specific Controller (B-ASC) Device Profile as defined 
in ANSI/ ASHRAE Standard 135-2012 (BACnet) Annex L, Protocol Revision 14 
FCC Part 15, Subpart J compliant