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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-19
A19 Series Remote Bulb Control
Description
The A19 Series Controls are single-stage
temperature controls that incorporate
environmentally friendly liquid-filled sensing
elements.
Refer to the A19 Series Hot Water Heating
Controls Well Immersion Product Bulletin
(LIT-125025) for important product application
information.
A19 Series
Action on Increase
of Temperature
Y
B
R
A19 Series
Terminal Arrangement for Single-Pole,
Double-Throw (SPDT)
a19.eps
Features
• wide temperature ranges available
• constant differential throughout the entire
range
• compact enclosure
• fixed or adjustable differential available
• variety of sensing element styles
• unaffected by cross-ambient conditions
Selection Charts
A19 Series Remote Bulb Control
1
1. Specify the control model code number, packing nut code number (if required), and bulb well code number (if required).
Product Code
Number
Switch
Action
Range
°F (°C)
Differential
F° (C°)
Bulb and
Capillary
Bulb Well No.
(Order
Separately)
Range
Adjuster
Max. Bulb
Temp. °F (°C)
Adjustable Differential (Wide Range)
A19ABA-40C
2
2. Replaces White-Rodgers® 1609-101
Single-Pole,
Single-Throw
(SPST)
Open low
-30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver Slot 140 (60)
A19ABC-4C SPDT 50 to 130 (10 to 55) 3-1/2 to 14 (1.9 to 8) 3/8 in. x 5 in., 8 ft. capillary WEL14A-603R Knob 170 (77)
A19ABC-24C
3
3. Replaces White-Rodgers 1609-12, -13; Ranco® 010-1408, -1409, - 1410, -1490, 060-110; Honeywell® L6018C-1006, L6021A-1005, T675A-1011, -1508, -1516,
-1821, T4301A-1008, T6031A-1011, T6031A-1029
SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 8 ft. capillary WEL14A-602R Convertible 140 (60)
A19ABC-36C SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 20 ft. capillary WEL14A-602R Convertible 140 (60)
A19ABC-37C SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 10 ft. capillary WEL14A-602R Screwdriver slot 140 (60)
A19ABC-74C SPDT -30 to 100 (-34 to 38) 3 to 12 (1.7 to 6.7) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver slot 140 (60)
Fixed Differential
A19AAF-12C SPDT 25 to 225 (-4 to 107) 3-1/2 (1.9) 3/8 in. x 3 in., 10 ft. capillary WEL14A-602R Screwdriver slot 275 (135)
Fixed Differential (Case Compensated)
A19AAC-4C SPDT 0 to 80 (-18 to 27) 5 (2.8) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver slot 140 (60)
A19AAD-12C SPST
Open low
-30 to 50 (-34 to 10) 2-1/2 (1.4) 3/8 in. x 4 in., 7 ft. capillary WEL14A-602R Screwdriver slot 140 (60)
Fixed Differential (Close)
A19AAD-5C
4
4. Case-Compensated
SPST
Open low
30 to 50 (-1 to 10)
(Bulk Milk Cooler)
2-1/2 (1.4) 3/8 in. x 2-5/8 in.,
6 ft. capillary
WEL16A-601R Screwdriver slot 190 (88)
A19AAF-20C SPDT -30 to 100 (-34 to 38) 2-1/2 (1.4) 3/8 in. x 4 in., 6 ft. capillary WEL14A-602R Screwdriver slot 140 (60)
A19AAF-21C SPDT 40 to 90 (4 to 32) 1-1/2 (0.8) 3/8 in. x 5-3/4 in., 6 ft. capillary WEL14A-603R Screwdriver slot 140 (60)
Manual Reset
A19ACA-14C SPST
Open low
-30 to 100
(-34 to 38)
Manual reset 3/8 in. x 4 in.
6 ft capillary
WEL14A-602R Screwdriver slot 140 (60)
A19ACA-15C SPST
Open low
-30 to 100
(-34 to 38)
Manual reset 3/8 in. x 4 in.
10 ft capillary
WEL14A-602R Screwdriver slot 140 (60)
A19ADB-1C SPST
Open high
100 to 240
(38 to 116)
Manual reset 3/8 in. x 3-1/2 in.
6 ft capillary
WEL14A-602R Knob 290 (143)
A19ADB-38C SPST
Open high
100 to 240
(38 to 116)
Manual reset 3/8 in. x 4 in.
6 ft capillary
WEL14A-602R Screwdriver slot 290 (143)
A19ABC-24 Remote Bulb Control
Single-Stage Electromechanical Temperature Controls
Code No. LIT-1927010
Applications
The A19 is suitable for temperature
control in HVAC/R applications.