JOHNSON CONTROLS A19AAF-21C Indoor Single-Stage Line-Voltage Thermostat
The JOHNSON CONTROLS A19AAF-21C is an indoor single-stage line-voltage mechanical thermostat with a fixed 1.5°F differential and a temperature control range of 40° to 90°F. It features a steel enclosure, SPDT switch…
SKU 3G-OTH-68175
Also listed as: A19AAF21C · A19AAF 21C
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
The JOHNSON CONTROLS A19AAF-21C is an indoor single-stage line-voltage mechanical thermostat with a fixed 1.5°F differential and a temperature control range of 40° to 90°F. It features a steel enclosure, SPDT switch action (open/close on rise), and operates on 120 to 277V AC. The unit includes a 6 ft capillary with a 5-3/4 in x 3/8 in bulb.
Frequently Asked Questions
What is the JOHNSON CONTROLS A19AAF-21C thermostat used for?
The JOHNSON CONTROLS A19AAF-21C is a line-voltage mechanical thermostat used for indoor single-stage temperature control in commercial and industrial HVAC applications. It is suitable for controlling fans, heaters, or other equipment where a fixed 1.5°F differential and SPDT switching action are required.
What are the specifications of the JOHNSON CONTROLS A19AAF-21C?
The JOHNSON CONTROLS A19AAF-21C has a temperature control range of 40° to 90°F, a fixed differential of 1.5°F, and operates on 120 to 277V AC. It features SPDT switch action (open/close on rise), a steel enclosure, and includes a 6 ft capillary with a 5-3/4 in x 3/8 in bulb.
Where to buy the JOHNSON CONTROLS A19AAF-21C worldwide?
3G Electric supplies the JOHNSON CONTROLS A19AAF-21C thermostat worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this line-voltage mechanical thermostat.
How to install the JOHNSON CONTROLS A19AAF-21C thermostat?
Install the JOHNSON CONTROLS A19AAF-21C by mounting the steel enclosure in a dry indoor location. Connect the SPDT switch wiring per the voltage rating (120 to 277V AC) and position the capillary bulb in the controlled air stream. Ensure the 6 ft capillary is not kinked. Follow standard HVAC wiring practices.
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3G Electric supplies JOHNSON CONTROLS indoor single-stage controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
