Incorporates a 20 foot long, vapor charged, sensing element. Reacts to the coldest 18 inch
section of the controls sensing element. Suitable for monitoring the face temperature of hot
water coils for freeze protection.
SINGLE STAGE TEMPERATURE CONTROLS
392
Part numbers and illustrations are for identification only
© 1971 - 2010 w.d. armstrong corp.
LOW TEMPERATURE CUTOUT CONTROL
REMOTE BULB CONTROLS
Features
• snap-acting switch
• external temperature scale
• easy setpoint adjustment with top or bottom access
Applications
• low temp. cut-out for coils and/or pipe liquid sensing
Specifications
• ambient temperature of control: 0-140°F (-17.8 -60°C)
• maximum element temperature: 250°F (121°C)
Part No.
Switch
Range
Differential
Bulb & Capillary
A11A-1C
Manual Reset
A11B-1C
8°F (4.4°C) (Fixed)
SPST
Open Low
35 to 45°F
2 to 7°C
20 ft. of 1/8” O.D. Tubing
4’ Cap.
Suitable for temperature control in heating, ventilating, and refrigeration.
Single stage temperature controls that incorporate liquid filled sensing
elements.
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
Accessories
A packing nut is available for closed tank application. Specify the part
number FTG13A-600R. Bulb wells (WEL14A Series) are available for
liquid immersion applications.
Bulb
Max
Switch
Well No.
Bulb
Part No.
Action
Range
Diff
Bulb
Cap.
WELL14A- Temp
Adjustable Differential (Wide Range)
A19ABA-40C1 SPST
-30 to 100ºF
3 to12ºF
3/8” x 4”
6’
602R
140ºF
Open Low
-34 to 38ºC
1.7 to 6.7°C
60ºC
A19ABC-4C
SPDT
50 to 130ºF
3.5 to14ºF
3/8” x 4”
8’
603R
170ºF
10 to 55ºC
1.9 to 8ºC
77ºC
Fixed Differential (Case Compensated)
A19AAF-12C
SPDT
25 to 225ºF
3.5ºF
3/8” x 3”
10’
602R
140ºF
-4 to 107ºC
1.9ºC
60ºC
Manual Reset
A19ADB-1C
SPST
100 to 240ºF
-
3/8” x 3½”
6’
602R
290ºF
Open High
38 to 116ºC
-
143ºC
1. Replaces: White-Rodgers 1609-101
