A72 Series Temperature Control
Single-Stage Electromechanical Temperature Controls
Code No. LIT-1927160
A72 Series Cooling Tower or Evaporative Condenser Controls
(Single-Stage Temperature Control with Outdoor Enclosure)
Description
The A72AE and A72CE are wide range
temperature controls with heavy duty
double-pole, single-throw (DPST) contacts
and neoprene-coated sensing elements.
Refer to the A72 Series Temperature Controls
for Cooling Towers and Evaporated
Condensers with Weather Resistant
Enclosure Product Bulletin (LIT-125165) for
important product application information.
Selection Chart
Product
Code
Number
A72AE-1C DPST; close high
A72CE-1C DPST; open high
Switch
Action
Range
°F (°C)
25 to 90
(-5 to 30)
Differential
F° (C°)
4 to 25
(2.2 to 14)
Technical Specifications
• ambient temperature limits: -65 to 150°F
(-54 to 66°C)
• maximum bulb temperature: 170°F (77°C)
Features
Open high or close high models are available.
Applications
Use for control of cooling tower fans;
motorized valves or solenoid operated valves.
Repair Information
If the A72 Series Cooling Tower or
Evaporative Condenser Control fails to
operate within its specifications, replace the
unit. For a replacement control, contact the
nearest Johnson
Bulb and
Capillary
11/16 in. x 6-3/4 in.
Neoprene-coated 6 ft cap.
Electrical Ratings
Motor Ratings VAC 120
Horsepower 233555
AC Full Load A 24.0 24.0 24.0 15.0 15.9 15.0
AC Locked Rotor A 144.0 144.0 144.0 90.0 95.4 90.0
AC Non-Inductive A 24.0 24.0 24.0 – – –
DC Non-Inductive A 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.
Controls®
representative.
Range
Adjuster
Internal
screwdriver slot
Single-
Phase
1
208
Single-
Phase
1
240
Single-
Phase
220
Two -
Phase
1
208
ThreePhase
220
ThreePhase
The performance specifications are nomina l and con form to accep table ind ustry stand ards. For applicati ons at con ditions be yond these specification s, 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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