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JOHNSON CONTROLS A28AA-29C Indoor Two-Stage Control - Indoor Two-Stage Controls
JOHNSON CONTROLSIndoor Two-Stage Controls

JOHNSON CONTROLS A28AA-29C Indoor Two-Stage Control

The JOHNSON CONTROLS A28AA-29C is an indoor two-stage line-voltage mechanical thermostat with a temperature control range of -30° to 100°F. It features an adjustable differential of 5°/2° to 7°F, SPDT switch action…

SKU 3G-OTH-67866

Also listed as: A28AA29C · A28AA 29C

Brand
JOHNSON CONTROLS
Item
A28AA-29C Indoor Two-Stage Control
Part Number
A28AA-29C
Category
Indoor Two-Stage Controls
Available to Order
Also known as:A28AA-29CJOHNSON CONTROLS
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
A28AA-29C
Type
Steel, Adj, 5°/2° to 7°F
Voltage
24 to 277V AC
Differential Type
Adjustable
Enclosure Material
Steel
Switch Type/Action
SPDT, Open/Close on Rise
Temperature Differential
5°/2° to 7°F
Temperature Control Range
-30° to 100°F
Capillary Length/Bulb Diameter
8 ft Capillary, 8 ft x 3/8 in Bulb

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JOHNSON CONTROLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JOHNSON CONTROLS A28AA-29C is an indoor two-stage line-voltage mechanical thermostat with a temperature control range of -30° to 100°F. It features an adjustable differential of 5°/2° to 7°F, SPDT switch action (open/close on rise), and operates on 24 to 277V AC. The unit includes a steel enclosure and an 8 ft capillary with an 8 ft x 3/8 in bulb.

Frequently Asked Questions

What is the JOHNSON CONTROLS A28AA-29C thermostat used for?

The JOHNSON CONTROLS A28AA-29C is an indoor two-stage line-voltage mechanical thermostat used for temperature control in commercial HVAC systems. It is suitable for applications requiring a -30° to 100°F range, such as duct heaters, unit heaters, or refrigeration equipment, where SPDT switching on temperature rise is needed.

What are the specifications of the JOHNSON CONTROLS A28AA-29C?

The JOHNSON CONTROLS A28AA-29C has a temperature control range of -30° to 100°F, adjustable differential of 5°/2° to 7°F, and SPDT switch action (open/close on rise). It operates on 24 to 277V AC, includes an 8 ft capillary with 8 ft x 3/8 in bulb, and has a steel enclosure.

Where to buy the JOHNSON CONTROLS A28AA-29C worldwide?

3G Electric supplies the JOHNSON CONTROLS A28AA-29C 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; we source and deliver this thermostat to any country.

How to install the JOHNSON CONTROLS A28AA-29C thermostat?

Install the JOHNSON CONTROLS A28AA-29C by mounting the steel enclosure to a flat surface, routing the 8 ft capillary and bulb to the sensing area, and wiring the SPDT contacts per the voltage rating (24 to 277V AC). Adjust the differential (5°/2° to 7°F) as needed. Follow local electrical codes and the manufacturer's instructions.

Used in

Common applications for JOHNSON CONTROLS
Building automation systems — Johnson Controls TE-6361M-1 duct temperature sensor for monitoring duct temperatures in HVAC systems.
Refrigeration systems — Johnson Controls SEC99AA-24C armored capillary tubing for connecting pressure controls.
HVAC differential pressure control — Johnson Controls P74EA-8C for controlling equipment based on pressure changes.
Liquid flow detection — Johnson Controls F261MAH-V01C paddle flow switch for piping systems.
Hydronic heating and cooling — Johnson Controls VG2431YN globe valve for flow control in water systems.
Refrigeration condensing units — Johnson Controls P66AAB-1C fan speed control for maintaining pressure.
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JOHNSON CONTROLS Products

3G Electric supplies JOHNSON CONTROLS indoor two-stage controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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