Safety Information; Safety Requirements; General Information - ENGO CONTROLS EWT100 Operation And Installation Manual

1. SAFETY INFORMATION

1.1 Safety requirements

Requirements concerning safety are listed in particular sections of this instruction. Apart from them it in necessary to fulfill the following requirements.
• Prior to starting the assembly, repairs or maintenance and during the execution of any connection works, it is necessary to switch off the mains
supply and make sure that no terminals no electrical wires are energized. • After deactivating the controller, terminals of the controller can be under
a dangerous level of voltage. • The controller can be utilized only in accordance with its intended use. • Values of programmed parameters must be
set in accordance with a particular building and hydraulic system. • Controller can be assembled only by qualified installer and in accordance with
currently valid standards and regulations. • The controller is not an intrinsically safe device. It means that in case of failure it can be a source of sparks
or high temperature which surrounded by ashes or flammable gases can cause fire or explosion. • Modification of the programmed parameters
should be made only by a person who read this manual. • Use only in heat circulation system made in accordance with currently valid regulations.
• Electrical system including the controller should be protected with fuse selected in accordance with used loads. • The controller cannot be used
with damaged housing. • Never make any modifications in controller structure. • The controller has electronic disconnection for connected devices
(operation 2.B according to PN-EN 60730-1). • Before you open casing, first disconnect power supply from the unit. • The controller must be installed
in accordance with the requirements of EN 60335-1 standard, by qualified and authorized technician. • Short circuit at the outputs leads to damage
to the device (not output COMNO). • Do not operate the unit when it is malfunctioning or was repaired by unauthorized persons. • Do not mount the
unit on flammable materials.

1.2 General information

Weather controller EWT100 is designed to control the temperature in the heating circuit with the valve 3 or 4-way equipped with a drive-controlled
3-point with the possibility of connecting additional circulation pump and control the heat source through a dry contact. Main functions performed:
• weather control - the preset temperature heating circuit is determined on the basis of the programmed heating curve and the measured outside
temperature, • automatic detection season heating, • work with a room thermostat • controling the heat source • implementation of the return
temperature protection (against low temperature of the return water) - protection from boiling water in the boiler (coal boiler) in the short-circuit of
the boiler. The controller is equipped with a timer (clock operation is maintained for 48 hours with the power off the controller). Regulator is easy to
operate in an intuitive manner. It may be used in households and other similar premises and in light industry facilities.
EWT100 FULL MANUAL 3