Johnson Controls A36 Series Data Sheet

a36 IN.eps

A36 Series Action Diagram

Switch

Differ en tial

Switch

Differential

Switch

Differential

Intersta ge
Differ ential

a36diff.eps

A36 Series Differential Diagram

A36AHA-52 Remote

Bulb Thermostat

Multi-Stage Electromechanical Temperature Controls

A36 Series Four-Stage Remote Bulb Thermostats

Description

The A36 series are four-stage thermostats
with open construction for use in panel
mounting.

Refer to the Type A36AHA 4-Stage Computer

Environmental Temperature Control Product

Bulletin (LIT-125145) for important product

application information.

Features

Screwdriver slot adjustment with calibrated
dial enables movement of entire staging band
within the range.

Applications

Use for cycling control for multiple
refrigeration compressors or unloading type
compressors.

Accessories

Order Enclosure CSE57A-600 separately, if
required.

Code No. LIT-1927135

Repair Information

If the A36 Series Four-Stage Remote Bulb
Thermostat fails to operate within its
specifications, replace the unit. For a
replacement thermostat, contact the nearest
Johnson

Controls®

representative.

Selection Chart

Product Code
Number

A36AHA-50C

A36AHA-52C

A36AHA-58C

A36AHB-33C

1. Calibrated at mid-switching point; computer room or comfort control.

2. Calibrated at low-switching point; special close control chiller applications.

Switch
Action

1

Four Single-Pole,
Double-Throw

1

(SPDT)
switches

2

1

Specifications

Maximum bulb temperature is 120°F (49°C) in operation and 140°F (60°C) when shipping.

Electrical Ratings (Per Switch)

Motor Ratings VAC 120 208 240 277

AC Full Load A 10.0 6.9 5.0 –
AC Locked Rotor A 60.0 41.4 30.0 –
Non-Inductive A 16.0 9.2 8.0 7.2
Pilot Duty 125 VA, 120 to 227 VAC

AC Full Load A 6.0 3.4 3.0 –
AC Locked Rotor A 36.0 20.4 18.0 –
Non-Inductive A 10.0 5.7 5.0 4.3
Pilot Duty 125 VA, 120 to 227 VAC

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.

Range °F (°C) Differential F° (C°)

Fixed

55 to 95
(13 to 35)

0 to 70
(-18 to 21)

Two each stage
1 1/2 (0.8) between stages

Three each stage
2-1/2 (1.4) between stages

Two each stage
2-1/2 (1.4) between stages

A36AHA

A36AHB

R-65

Bulb and
Capillary

3/8 in. x 5-1/4 in.
18 in. capillary
w ith 12 in. nylon armor

3/8 in. x 4-3/4 in.
15 ft braid armor
capillary

Bulb Well No.
(Order Separately)

WEL14A-603R Screwdriver slot with

WEL14A-602R

Range
Adjuster

calibrated dial