A421GBF-02C | Johnson Controls | Thermostats & Controllers
Electronic Single Stage Temp Control, Rated For 24 VAC, Incl. A99Bb-200C Temp Sensor
Brand:Johnson Controls
MPN:A421GBF-02C
SKU:A421GBF-02C
List Price:
$244.00
Today's Price:
$126.88
Log in for customized pricingproduct specifications
Type
Line-Voltage
Set Point Range
-40 to 212 °F
Display
LCD
Controls Outputs
SPDT
Supply Voltage (Nominal)
24 VAC
product series specifications
Supply Voltage:
Low Voltage Models: 24 VAC (20 to 30 VAC), 50/60 Hz, Class 2 or Safety Extra-Low Voltage
Line Voltage Models: 110/120 or 208/230/240 VAC, 50/60 Hz
Power Consumption: Max. 1.8 VA
Accuracy (Temperature): < ± 1.8°F1.0°C)
Operating Temperature
Operating Type 1 Models: -40 to 150°F (-40 to 66°C)
Type 4X Models: -40 to 140°F (-40 to 60°C)
Shipping and Storage: -40 to 185°F (-40 to 85°C)
Operating Humidity: 0 to 95% RH
Enclosure Rating: Type 1/IP20 high-impact thermoplastic or Type 4X/IP66 watertight, corrosion-resistant, high-impact thermoplastic
Approvals:
North America cULus Listed; UL 60730, File E27734, Vol. 1; FCC Compliant to CFR47, Part 15, Subpart B, Class B Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits
Europe CE Mark ‚ Johnson Controls, Inc. declares that this product is in compliance with the essential requirements and other relevant provisions of the EMC Directive 2004/108/EC and the Low Voltage Directive 2006/95/EC.
Australia Mark C-Tick Compliant (N1813)
product series features
- Easy-to-read, bright, adjustable backlit LCD screen displays the temperature, parameters, and status clearly and allows you to adjust LCD brightness for the ambient light conditions. Custom icons on the display provide visual cues on system and control status.
- Basic and advanced programming menus allow you to easily set up your control application on the LCD using a simple three-button touchpad interface.
- Adjustable On and Off temperature setpoints enable easy to set up cooling or heating control applications on the three-button touchpad, eliminating the need to remove the cover and reposition jumpers for reverse or direct control actions.
- High and low temperature setpoint adjustment stops allow you to set up your application for your desired range of adjustment and restrict user adjustment to just the desired temperature adjustment range.
- Displayed temperature offset allows you to adjust the displayed temperature to the actual sensed temperature in applications where the resistance error in long sensor cable leads cause a deviation in the displayed temperature from the actual sensed temperature.
- Adjustable anti-short cycle delay keeps the output relay Off after the Off setpoint is reached for a user-defined time delay, which helps avoid short cycling, hard starts, and nuisance overload outages on compressors and other inductive applications.
- Temperature setback/offset control enables the control to shift the On and Off setpoint values by a user-defined offset when an external switch closes the binary input control circuit. Using a switching timer enables you to set up occupied/unoccupied temperature setback schedules for your applications.
- High-impact, thermoplastic Type 1/IP20 or Type 4X (NEMA)/IP66 watertight, corrosion-resistant enclosures increase application options, allowing surface and snap-fit DIN rail mount, or watertight surface mount.
more information & related documents
Series Description
The Johnson Controls A421 Series are single-stage controls with a single-pole, double-throw (SPDT) output relay. A421 Controls feature a bright backlit LCD with adjustable brightness and a three-button touchpad interface that can be set up to restrict user adjustments.
Kele Description
TSTAT/LOWV/NEMA1/-40 TO 212/24VAC/6.6FT SEN
Manufacturer
Johnson Controls
Related Documents
A421 Datasheet 
