Samson 5312-2 Manual de servicio
Translation of original instructions
EB 5207 EN
Type5312-2 Frost Protection Thermostat
Edition September 2008
Definition 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
EB 5207 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. The images shown in
these instructions are for illustration purposes only. The actual product may vary.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
(aftersalesservice@samsongroup.com).
The mounting and operating instructions for the devices are included
in the scope of delivery. The latest documentation is available on our
website at www.samsongroup.com > Service & Support > Downloads >
Documentation.
Contents
EB 5207 EN
1 Safety instructions and measures ................................................................1-1
1.1 Notes on possible severe personal injury ......................................................1-4
1.2 Notes on possible personal injury ................................................................1-5
1.3 Notes on possible property damage.............................................................1-6
2 Markings on the device ..............................................................................2-1
2.1 Nameplate .................................................................................................2-1
3 Design and principle of operation ...............................................................3-1
3.1 Technical data ............................................................................................3-1
3.2 Dimensions.................................................................................................3-2
4 Shipment and on-site transport ...................................................................4-1
4.1 Accepting the delivered goods .....................................................................4-1
4.2 Removing the packaging from the frost protection thermostat..........................4-1
4.3 Lifting the frost protection thermostat.............................................................4-1
4.4 Storing the frost protection thermostat...........................................................4-1
5 Installation.................................................................................................5-1
5.1 Installation conditions..................................................................................5-1
5.2 Preparation for installation...........................................................................5-1
5.3 Mounting the frost protection thermostat .......................................................5-1
5.4 Electrical connection....................................................................................5-2
6 Operation..................................................................................................6-1
7 Start-up .....................................................................................................7-1
8 Operation..................................................................................................8-1
9 Malfunctions ..............................................................................................9-1
9.1 Emergency action .......................................................................................9-1
10 Servicing..................................................................................................10-1
11 Decommissioning .....................................................................................11-1
12 Removal ..................................................................................................12-1
13 Repairs ....................................................................................................13-1
13.1 Returning the frost protection thermostat to SAMSON ..................................13-1
14 Disposal...................................................................................................14-1
15 Certicates...............................................................................................15-1
16 Annex......................................................................................................16-1
16.1 Accessories ..............................................................................................16-1
16.2 After-sales service.....................................................................................16-1
4 EB 5207 EN
EB 5207 EN 1-1
Safety instructions and measures
1 Safety instructions and measures
Intended use
The Type5312-2 Frost Protection Thermostat is designed as a switching device to open or
close a circuit based on the temperature in heating, ventilation and air-conditioning systems
as well as in process engineering and industrial energy transfer systems. The frost protection
thermostat is designed to operate under exactly dened conditions (e.g. switching point and
voltage). Therefore, operators must ensure that a frost protection thermostat is only used in
operating conditions that meet the specications at the ordering stage. In case operators
intend to use the frost protection thermostat in other applications or conditions than specied,
contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the
device for its intended purpose or for damage caused by external forces or any other
external factors.
ÎRefer to the technical data for limits and elds of application as well as possible uses. See
the 'Design and principle of operation' section.
Reasonably foreseeable misuse
The frost protection thermostat is not suitable for the following applications:
− Use outside the limits dened during sizing and by the technical data
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts
− Performing service and repair work not described
Qualications of operating personnel
The frost protection thermostat must be mounted, started up, serviced and repaired by fully
trained and qualied personnel only; the accepted industry codes and practices must be
observed. According to these mounting and operating instructions, trained personnel refers
to individuals who are able to judge the work they are assigned to and recognize possible
hazards due to their specialized training, their knowledge and experience as well as their
knowledge of the applicable standards.
1-2 EB 5207 EN
Safety instructions and measures
Personal protective equipment
No personal protective equipment is required for the direct handling of the frost protection
thermostat. Work on the control valve may be necessary when mounting or removing the
device.
ÎObserve the requirements for personal protective equipment specied in the valve docu-
mentation.
ÎCheck with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions, conversions or other modications of the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example.
Furthermore, the product may no longer meet the requirements for its intended use.
Safety features
No special safety features exist.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the control valve by the process medium, the operat-
ing pressure, the signal pressure or by moving parts by taking appropriate precautions. Plant
operators and operating personnel must observe all hazard statements, warning and caution
notes in these mounting and operating instructions, especially for installation, start-up and
service work.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations.
Operators are obliged to provide these mounting and operating instructions to the operating
personnel and to instruct them in proper operation. Furthermore, operators must ensure that
operating personnel or third parties are not exposed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
well as the specied hazard statements, warning and caution notes. Furthermore, operating
personnel must be familiar with the applicable health, safety and accident prevention regula-
tions and comply with them.
EB 5207 EN 1-3
Safety instructions and measures
Referenced standards, directives and regulations
The Type5312-2 Frost Protection Thermostat fullls the requirements of the Directives
2014/30/EU and 2014/65/EU. The declaration of conformity includes information about
the applied conformity assessment procedure. The 'Certicates' section contains this declara-
tion of conformity.
The Type5312-2 Frost Protection Thermostat is designed for use in low voltage installations.
ÎFor wiring, maintenance and repair, observe the relevant safety regulations.
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
uT5200 (Information Sheet: Temperature Sensors and Thermostats)
uT5207 Type5312-2 Frost Protection Thermostat
1-4 EB 5207 EN
Safety instructions and measures
1.1 Notes on possible severe personal injury
DANGER
!
Risk of fatal injury due to electric shock.
ÎBefore connecting wiring, performing any work on the device or opening the de-
vice, disconnect the supply voltage and protect it against unintentional reconnec-
tion.
ÎOnly use power interruption devices that can be protected against unintentional re-
connection of the power supply.
ÎDo not remove any covers to perform adjustment work on live parts.
The frost protection thermostat is protected to prevent solid particles larger than 1mm
from entering. However, it is not protected against moisture (IP40).
Risk of bursting in pressure equipment.
Valves and pipelines are pressure equipment. Improper opening can lead to valve com-
ponents bursting.
ÎBefore starting any work on the control valve, depressurize all plant sections affect-
ed as well as the valve.
ÎDrain the process medium from all the plant sections affected and from the valve.
ÎWear recommended personal protective equipment. See associated valve docu-
mentation.
EB 5207 EN 1-5
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING
!
Risk of burn injuries as a result of touching hot components.
Thermostats installed in pipelines as well as the surrounding pipes, valves and other
components may be hot or cold.
ÎBefore performing any work on the device, shut off the medium ow.
ÎAllow devices to cool down or warm up to the ambient temperature.
ÎWear personal protective equipment that is suitable for the purpose.
WARNING
!
Risk of personal injury through incorrect operation, use or installation as a result of
information on the thermostat being illegible.
Over time, markings, labels and nameplates on the frost protection thermostat may
become covered with dirt or become illegible in some other way. As a result, hazards
may go unnoticed and the necessary instructions not followed. There is a risk of
personal injury.
ÎKeep all relevant markings and inscriptions on the device in a constantly legible
state.
ÎImmediately renew damaged, missing or incorrect nameplates or labels.
1-6 EB 5207 EN
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of damage to the frost protection thermostat due to the supply voltage exceed-
ing the permissible tolerances.
The Type5312-2 Thermostat is designed for use according to regulations for low-
voltage installations.
ÎObserve the permissible tolerances of the supply voltage.
Risk of thermostat damage due to incorrect mounting.
The Type5312-2 Thermostat must be mounted properly and depending on the type of
mounting.
Incorrect connection of the electrical power supply will damage the frost protection
thermostat.
The frost protection thermostat has terminals that are integrated in a circuit.
ÎObserve the tolerances of the technical data.
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