1
Safety
1.1
Proper usage
The temperature difference controller (hereinafter referred to as controller) is an independently installed
electronic temperature controller for on-surface installation, and may only be used for controlling solar
thermal systems within the permissible ambient conditions (see chapter 15 "Technical data").
The controller must not be operated in the following environments:
•
outdoors
•
in damp rooms
•
in rooms where highly flammable gas mixtures can occur
•
in rooms in which the operation of electrical and electronic components may cause dangers to arise
1.2
Dangers during assembly and commissioning
The following dangers exist during installation/commissioning of the controller and during operation (in
case of installation errors):
•
risk of death by electrocution
•
risk of fire due to short-circuit
•
damage to any of the constructional fire safety measures present in the building due to incorrectly
installed cables
•
damage to the controller and the connected devices due to improper ambient conditions, inappropri-
ate power supply and the connection of prohibited devices, faulty devices, or devices not included in
the device specifications, as well as incorrect assembly or installation
NOTE
Observe the controller's type plate!
Therefore, all safety regulations apply when working on the mains supply. Only electricians may perform
work that requires opening the controller (such as electrical connection work).
When laying cables, ensure that no damage occurs to any of the constructional fire safety measures
present in the building.
Make sure that the permissible ambient conditions at the installation site are not exceeded (see chap-
ter 15 "Technical data").
Be sure to comply with the specified ingress protection.
Labels and markings applied in the factory may not be altered, removed or rendered unreadable.
Before connecting the device, make sure that the power supply matches the specifications on the type
plate.
Make sure that all devices which are connected to the controller conform to the technical data of the
controller.
Secure the device against unintentional start-up.
All work on an open controller must be performed with the mains supply removed.
Protect the controller against overloading and short-circuiting.
4
EN
730.137 | 08.37
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