Johnson Controls A19ZBC-2C Data Sheet

A19ZBC-2 Defrost Duration and

Fan Delay Control

Single-Stage Electromechanical Temperature Controls

A19 Defrost Duration and Fan Delay Control

Description

The A19 Defrost Duration and Fan Delay
Control is a remote bulb control with
adjustable defrost termination temperature
and preset fan delay temperature.

Refer to the A19ZBC Type Temperature
Control Product Bulletin (LIT-121071) for
important product application information.

Features

• sensing element unaffected by barometer
pressure and cross ambient temperature
problems

• limited adjustment range

Applications

Use for defrost termination control for
refrigerated display cases.

Selection Chart

Product Code
Number

A19ZBC-2C Single-Pole,

Switch
Action

Double-Throw
(SPDT)

Code No. LIT-1927095

Repair Information

If the A19 Defrost Duration and Fan Delay
Control fails to operate within its specifica tions,
replace the unit. For a replacement cont rol,
contact the nearest Johnson
representative.

Controls®

Technical Specifications

• maximum bulb temperature: 140°F (60°C)

• fan delay temperature: factory set at
25°F (-4°C)

Electrical Ratings

Motor Ratings VAC 120 208 240

AC Full Load A 16.0 9.2 8.0
AC Locked Rotor A 96.0 55.2 48.0

Non-Inductive or
Resistance Load A
(Not Lamp Loads)

Pilot Duty 125 VA, 24 to 277 VAC

Defrost Termination
°F (°C)

45 to 85 (7 to 29) 19/64 in. x 3-1/8 in.; 6 ft. capillary Knob

16.0 9.2 8.0

Bulb and
Capillary

Range
Adjuster

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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