Johnson Controls A72 Series Data Sheet
Single-Stage Electromechanical Temperature Controls |
Code No. LIT-1927145 |
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A72 Series Two-Pole Heavy Duty Temperature Controls (Adjustable
Differential)
Description
The A72 Series Temperature Controls incorporate a vapor charged sensing element and heavy duty contacts.
Refer to the A70, A72 Series Temperature Controls for Refrigeration and Heating (LIT-125155) for important product application information.
Features
The double-pole, single-throw (DPST) contact block contains two isolated sets of contacts that make or break simultaneously.
Applications
Use for automatic control of heavy electrical loads.
A72 Series
M 1
Line1
M 2
Line 2
Action on Increase on Temperature
A72 Action Diagram
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A72AA-3 Temperature Control
Selection Charts
Product Code |
Switch |
Range |
Differential |
Bulb and |
Maximum Bulb |
Range |
Number |
Action |
°F (°C) |
F° (C°) |
Capillary |
Temperature °F (°C) |
Adjuster |
A72AA-1C |
DPST |
-30 to 30 |
4 to 25 |
3/8 in. x 3 in.1 |
200 |
Screwdriver slot |
|
Close high |
(-34 to -1) |
(2 to 14) |
6 ft capillary |
(93) |
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Open low |
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A72AA-2C |
DPST |
15 to 55 |
3 to 30 |
3/8 in. x 3 in.1 |
200 |
Screwdriver slot |
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Close high |
(-9 to 13) |
(1.7 to 17) |
6 ft capillary |
(93) |
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Open low |
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A72AA-3C |
DPST |
50 to 90 |
3 to 30 |
11/16 in. x 6-3/4 in. |
135 |
Screwdriver slot |
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Close high |
(10 to 32) |
(1.7 to 17) |
Cross ambient |
(57) |
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Open low |
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6 ft capillary |
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A72AP-1C2 |
DPST |
-10 to 65 |
4 to 40 |
11/16 in. x 6-3/4 in. |
130 |
Screwdriver slot |
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Close high |
(-23 to 18) |
(2 to 22) |
Cross ambient |
(54) |
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Open low |
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6 ft capillary |
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1.Packing nut assembly available for direct immersion applications, Code No. FTG13A-600R.
2.Equipped with manual PUSH TO START button. Manual start feature is especially desirable on milk cooler jobs; permits manual start of the compressor when bulb temperature is between closing and opening setting of switch.
Replacement Covers |
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Product Code Number |
Description |
CVR17A-620R |
Automatic reset cover |
CVR17A-621R |
Manual reset cover |
Technical Specifications
Electrical Ratings
Motor Ratings VAC |
120 |
2081 |
2401 |
2201 |
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208 |
220 |
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Single-Phase |
Single-Phase |
Single-Phase |
Two-Phase |
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Three-Phase |
Three-Phase |
Horsepower |
2 |
3 |
3 |
5 |
|
5 |
5 |
AC Full Load A |
24.0 |
24.0 |
24.0 |
15.0 |
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15.9 |
15.0 |
AC Locked Rotor A |
144.0 |
144.0 |
144.0 |
90.0 |
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95.4 |
90.0 |
AC Non-Inductive A |
24.0 |
24.0 |
24.0 |
– |
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– |
– |
DC Non-Inductive A2 |
3.0 |
– |
0.5 |
– |
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– |
– |
Pilot Duty |
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125 VA, 120 to 600 VAC; 57.5 VA, 120 to 300 VDC |
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1.These full load and locked rotor ampere (not horsepower) ratings apply to hermetic compressors only.
2.This rating does not apply to the A72AP-1C Control.
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.
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