Johnson Controls A19EAF-1C Data Sheet

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

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R-31

A19EAF Thermostat

A19 Flange Mounted Duct Thermostat

Description

The A19 Flange Mounted Duct Thermostat is

a wide-range temperature control with a

special air coil sensing element and an

adjustable mounting flange.

Refer to the A19 Series Hot Water Heating

Controls Well Immersion Product Bulletin

(LIT-125025) for important product application

information.

Features

• single-pole, double-throw (SPDT)

snap-action switch

• unaffected by barometric pressure or

cross-ambient temperatures

• flat flange mounting with the coil element

permits positioning the sensing bulb in the

appropriate portion of the air stream

Applications

These duct thermostats are used on rooftop

units, make-up heaters, duct heaters, and air

handling systems of all types.

Technical Specifications

Electrical Ratings

Motor Ratings VAC 120 208 240

AC Full Load A 6.0 3.4 3.0

AC Locked Rotor A 36.0 20.4 18.0

Non-Inductive 10 A, 120 to 277 VAC

Pilot Duty 125 VA, 24 to 277 VAC

Selection Charts

A19 Flange Mounted Duct Thermostat

Product Code

Number

Switch

Action

Range

°F (°C)

Differential

F° (C°)

Maximum Bulb

Temperature °F (°C)

A19EAF-1C SPDT 60 to 130 (16 to 54) 2 (1.1) 200 (93)

A19EAF-2C SPDT 30 to 110 (-1 to 43) 2 (1.1) 140 (60)

Replacement Parts

Product Code Number Description

CVR28A-618R Visible scale cover

Single-Stage Electromechanical Temperature Controls

Code No. LIT-1927070