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The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc. www.johnsoncontrols.com
R-26
A19 Series Coiled Bulb Space Thermostat
Description
The A19 Series Thermostat is a wide range
temperature control with air coil sensing
element.
Refer to the A19 Series Utility Thermostats for
Farm, Industrial, and Commercial Use Product
Bulletin (LIT-125030) for important product
application information.
A19 Series
Action on Increase
of Temperature
Y
B
R
A19 Series
Terminal Arrangement for SPDT
a19.eps
Features
wide temperature range
NEMA 1 enclosure
Applications
Use for return air or space temperature
sensing.
Selection Charts
A19 Series Coiled Bulb Space Thermostat
Product
Code
Number
Switch
Action
Range
°F (°C)
Differential
F° (C°)
Bulb and
Capillary
Range
Adjuster
Maximum
Bulb Temp
°F (°C)
Ventilating, Heating
A19BAB-3C Single-Pole,
Single-Throw
(SPST),
open high
35 to 95
(0 to 35)
3 (1.7) fixed 1-3/8 in. x 2-1/4 in.
coiled
Knob 140 (60)
A19BAC-1C Single-Pole,
Double-Throw
(SPDT)
30 to 110
(-1 to 43)
3-1/2 (1.9)
fixed
1-3/8 in. x 2-1/4 in.
coiled
Convertible
A19BAF-1C SPDT 30 to 110
(-1 to 43)
1-1/2 (0.9)
fixed
1-3/8 in. x 2-1/4 in.
coiled
Knob
Cooling
A19BBC-2C
1
1. Replaces White-Rodgers® 201-16, -8, 2A37-1; Ranco® 010-1418, -1802, 016-594, C30-C1101;
Honeywell® T631A, T696A, T6054 A1005.
SPDT -30 to 100
(-34 to 38)
3 to 12
(1.7 to 7)
1-3/8 in. x 2-1/4 in.
coiled
Convertible 140 (60)
Replacement Parts
Product Code Number Description
CVR28A-617R Concealed adjustment cover
CVR28A-618R Visible scale cover
KNB20A-602R Knob kit
Technical Specifications
Electrical Ratings
Motor Ratings VAC 120 208 240
A19BAB, A19BAC
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
1
(Not Lamp Loads)
1. SPST and only one side of SPDT control;
SPDT - 16 A 120 to 277 VAC
22 A,
120 to 277 VAC
Pilot Duty 125 VA,
24 to 600 VAC
A19BAF
AC Full Load A 6.0 3.4 3.0
AC Locked Rotor A 36.0 20.4 18.0
Non-Inductive or
Resistance Load A
(Not Lamp Loads)
10 A,
120 to 277 VAC
Pilot Duty 125 VA,
24 to 277 VAC
Cooling - A19BBC
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
1
(Not Lamp Loads)
22 A,
120 to 277 VAC
Pilot Duty 125 VA,
24 to 600 VAC
A19BAC Thermostat
Single-Stage Electromechanical Temperature Controls
Code No. LIT-1927050