CTC Model 43855 Programmable Touchscreen Thermostat with Humidification Control
About This Thermostat
| MFG: | CTC |
| MFG#: | 43855 |
| Our#: | 172443 |
| Programmable: | Yes (7 day or non-programmable) |
| Stages: | 3H & 2C |
| System Compatibility: | Single Stage, Millivolt, Heat Pump, Multi-Stage, Heat Only |
| Power Options: | Battery, 24 VAC Hardwire |
| Heat/Cool Changeover: | Automatic or Manual |
| Programmable Fan: | Yes |
| Temperature Limits: | No |
| Keypad Lockout: | Yes |
| Backlight: | Yes |
| Vacation Hold: | Yes |
CTC Model 43855 Programmable Touchscreen Thermostat with Humidification Control
Universal Auto Changeover Up to 3 Heat / 2 Cool, with Humidification Control / Programmable or Non-Programmable
Features:
* Latching relay assures system compatibility
* Pre-programmed with easy-to-change presets
* Simultaneous Time and Temperature visibility for easy programming
* Large, easy-to-read display for clear, wide-angle viewing
* Auto season changeover
* Humidity sensing and control
* Refresh programmable fan - fan runs on set interval if the system does not cyle fan for 1 hour
* 7-Day program with choice of 2 or 4 program periods per day. Can also be converted to non-programmable
* Keyboard lock
* Filter Monitor
* Energy Monitor
* "System On" indicators
* Auto heat recovery
* "Clean Screen" function
* Patented "Home Today" override
* Temporary and Vacation Hold override with Programmable Hold
* AC or battery powered. 3 AA batteries included.
* Low battery warning
* Ambent display glows red or blue when screen is touched depending on operating mode (continuous backlighting not available)
* 3-year warranty
Compatible with most:
- Up to three-stage heat/two-stage cool conventional and heat pump systems
- Single-stage heat pumps
- Gas, electric or oil systems
- Millivolt systems
- 2-wire hydronic systems
- AC or hardwired (Not for use with 110V/220V systems)
Specifications:
- Output Load: 20-30 VAC, 50/60 Hz, .1-1.5 Amps
- Current draws: 2.0 Amps max per terminal. 4.0 Amps Max overall.
- Temperature display limits: 15°-99° F (-9°C-37°C)
- Temperature set range: 45°-95° F (5°-35° C)
- Operating differential: ± 1° F
- Humidity display limits: 20%-90% RH
- Compressor protection: 4 min. delay on break
- Terminations: RH, RC/R, C, Y1, Y2, W1, W2, W3, E, O/B, G, L, H
- Product Dimensions: 6" W x 4 5/8" H x 1 3/8" D



