Johnson Controls A72AA-4C Data Sheet
Single-Stage Electromechanical Temperature Controls |
Code No. LIT-1927150 |
|
|
A72AA Coiled Bulb Space Thermostat (Cooling)
Description
The A72 is a space sensing temperature control with heavy-duty contacts.
Refer to the A72 Series Temperature Controls for Cooling Towers and Evaporative Condensers with Weather Resistant Enclosure Product Bulletin (LIT-125165) for important product application information.
Applications
Use for compressor cycling for walk-in coolers and freezers.
Accessories
For replacement cover, order code number
CVR17A-620R.
Features
Double-pole, single-throw (DPST) contact block contains two isolated sets of contacts that make or break simultaneously.
Repair Information
If the A72AA Coiled Bulb Space Thermostat fails to operate within its specifications, replace the unit. For a replacement thermostat, contact the nearest Johnson Controls® representative.
A72AA-4 Thermostat
Selection Chart
Product Code |
Switch |
Range |
Differential |
Bulb and |
Range |
Number |
Action |
°F (°C) |
F° (C°) |
Capillary |
Adjuster |
A72AA-4C |
DPST |
15 to 55 |
3 to 30 |
Coiled copper |
Screwdriver |
|
Close high, open low |
(-9 to 13) |
(1.7 to 17) |
bulb |
slot |
Technical Specifications
Maximum bulb temperature is 200°F (93°C).
Electrical Ratings |
|
|
|
|
|
|
Motor Ratings VAC |
120 |
2081 |
2401 |
2201 |
208 |
220 |
|
Single-Phase |
Single-Phase |
Single-Phase |
Two-Phase |
Three-Phase |
Three-Phase |
Horsepower |
2 |
3 |
3 |
5 |
5 |
5 |
AC Full Load Amperes |
24.0 |
24.0 |
24.0 |
15.0 |
15.9 |
15.0 |
AC Locked Rotor Amperes |
144.0 |
144.0 |
144.0 |
90.0 |
95.4 |
90.0 |
AC Non-Inductive Amperes |
24.0 |
24.0 |
24.0 |
– |
– |
– |
DC Non-Inductive Amperes |
3.0 |
– |
0.5 |
– |
– |
– |
Pilot Duty |
|
125 VA, 120 to 600 VAC; 57.5 VA, 120 to 300 VDC |
|
|||
1. These full load and locked rotor ampere (not horsepower) ratings apply to hermetic compressors only.
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult th Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc.
R-43
Loading...