©Johnstone Supply eCatalog 216

HYDRONICS Controls

Immersion Control • Regulates temperature of any non-corrosive to copper liquid • 5' armored capillary permits convenient location of the control • Switch handles all voltages from millivolts to 240VAC; SPST opens on rise

• Temperature range: 100°F to 240°F • Differential: 5°F WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Order #

Mfg. #

Bulb

L36-084

11B06-1

3 1/2 x 7/18"

Immersion Well • 1/2" NPT for use with remote bulb immersion control

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Order #

Mfg. #

Conn. Size 1/2" NPT

L36-156

F89-0036

Strap-On Control • Attaches directly to the surface of a pipe for use as a high limit control, low limit control, circulator control or combination low limit and circulator control

• Can be mounted at any angle, no leveling necessary • Temperature range: 100°F to 240°F WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Order #

Mfg. # 1127-2

Switch Action

Temp. Range 100°F - 240°F

Diff.

L36-087

SPDT

Fixed 10°F

Penn Type A19 Strap-On Thermostat For Control of Hot Water • Strap-on surface type hot water control can be used for direct (open high) or reverse (open low) action • May be mounted on either horizontal or vertical riser pipe • Insulated case to minimize effects of ambient temperature (140°F max.)

• Maximum sensing element temperature: 250°F • Universal shaft kit for concealed knob or slotted shaft applications WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Order #

Mfg. #

Switch Action

Temp. Range

Diff.

L36-930

A19DAC-1

SPDT

100°F to 240°F

10°F Fixed

Operating Controls for Hot Water Boilers • Universal replacement control for open high or SPDT applications • Liquid-filled element provides rapid response to temperature change • Furnished with a well assembly for 1/2" tapping

• Adjustable differential; temperature range: 100°F to 240°F • 1/2" connection WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Fig. Order #

Mfg. #

Diff.

Application Open High Open Low

Bulb

L39-481 L39-482

A B

A19ABC-11C A19ABC-12C

6 to 24 6 to 24

Direct Immersion

A

B

8' Capillary w/Bulb Well

531

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