A19AAB-40C | REMOTE BULB TEMP CONTROL; 12" CAP; SPST; NEMA 1; 3/8 X 3-1/2" BULB; OPEN H 100/240 F 4 DIFF. | Johnson Controls

REMOTE BULB TEMP CONTROL; 12" CAP; SPST; NEMA 1; 3/8 X 3-1/2" BULB; OPEN H 100/240 F 4 DIFF.

Application

Johnson Controls hot water immersion controls provide various control functions for hydronic heating systems. These include high temperature cutout, operating, circulator or low temperature cutout.

All Series A19 temperature controls are designed for use only as operating controls. Where an operating control failure would result in personal injury and/or loss of property, it is the responsibility of the installer to add devices (safety, limit controls) or systems (alarm, supervisory systems) that protect against, or warn of, control failure.

Features

• Sealed, dusttight Pennswitch contact unit.
• Matching drawn bulb and well for rapid, efficient heat transfer.
• Manual reset, when supplied, is “Trip-Free.” Reset must be pressed and released before operation will resume.
• Concealed dial stop permits control within maximum temperature selected or specified.
• Direct reading scales provide fast, easy “on-the-job” adjustment.

General Description

A liquid expansion temperature element with copper bulb well gives fast control response.

The control can be easily removed from the bulb well by loosening the set screws and withdrawing the sensing bulb from the well. The control can be mounted in any position around the axis of the bulb well without changing the operating characteristics.

• Remote Bulb Temperature Controller
• 12 in. Capillary
• SPST
• NEMA 1
• Fixed Differential
• Open High, Standard Differential
• 100 to 240 °F