Samson 2231, 2232, 2233, 2234, 2235 Mounting And Operating Instructions

Mounting and
Operating Instructions

EB 2231 EN

Edition May 2016

Self-operated Regulators
Thermostats

Type2231 and Type2232 Bulb Sensors
Type2233, Type2234, and Type2235

Air Sensors

Type2231 with

bulb sensor

Type2232 with bulb

sensor (separate)

Type2233 with air

sensor

Type2233 with

perforated cover

Type2235 with freely

installable air sensor and

clamp (on the set point

adjuster)

Type2234 with air sensor

and clamp

Type2234 with

bulb sensor

(separate) and

clamp (on the set

point adjuster)

2 EB 2231 EN

Note on these mounting and operating instructions

These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices.

Î For the safe and proper use of these instructions, read them carefully and keep them for

later reference.

Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service

Department ([e-mail]).

The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
(www.samson.de) > Product documentation. You can enter the document

number or type number in the [Find:] eld to look for a document.

Denition of signal words

Hazardous situations which, if not avoided,
will result in death or serious injury

Hazardous situations which, if not avoided,
could result in death or serious injury

Property damage message or malfunction

Additional information

Recommended action

DANGER

!

WARNING

!

NOTICE

!

Note

Tip

Contents

EB 2231 EN 3

1 Design and principle of operation ..................................................................3

2 Installation ....................................................................................................4

2.1 Types2231 and 2232 (bulb sensor) ................................................................4

2.2 Types2233, 2234, and 2235 (air sensor) .......................................................6

2.3 Capillary tube ...............................................................................................6

2.4 Operating element .........................................................................................7

3 Operation .....................................................................................................7

3.1 Adjusting the set point ....................................................................................7

3.2 Correcting the set point dial ............................................................................7

1 Design and principle of oper-

ation

The thermostat is used in combination with a
control valve to regulate the temperature.

The thermostat can be fastened directly to
the control valve or using a double adapter.
A double adapter with or without locking fa­cility allows a further thermostat to be con­nected to achieve additional temperature
regulation or limitation.

The thermostat comprises the temperature
sensor, set point adjuster, capillary tube, and
operating element.

Depending on the eld of application, the

versions shown on the front cover can be se­lected.

The thermostats operate according to the liq­uid expansion principle. When, for example,
the temperature at the temperature sensor

(19) increases, the liquid contained in the
sensor expands, causing the pin (9) of the

operating element to be pushed upward by

the bellows (10). This travel motion acts on