Tech Controllers EU-27i, Руководство пользователя

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EU-27i User's manual
4
II. Control panel description
III. Working rule
EU-27 regulator is intended to control the operation of CH circulation pump and the operation of
additional pump (HCW or floor pump). The task of the regulator is to switch the CH pump on, if the
temperature exceeds the threshold activation value and to switch the pump off when the boiler cools
down (as a result of extinguishing). For the second pump, apart from activation temperature, the user
adjusts the set temperature to which the pump will operate.
The regulator is equipped with a system preventing from a stoppage of CH and HCW pumps, the so-
called.
anti-stop . If the pump works for a longer period (e.g.. beyond the season), then the pump is
turned on every 7 days for 1 minute. Additionally, time is saved every hour in a non - volatile EEPROM
memory, thanks to which, after possible stoppage in supply, time measurement is continued.
The controller has been also equipped with the function of protection against water freezing, the so-
called anti--freezing. After the sensor temperature of the CH HCW pump decreases below 7
o C, the
pump is switched on. The pump will work until the moment when the sensor temperature reaches the
value of 9
o C.
A user makes every change of parameters by means of pulse generator knob . Turning the knob
allows to mark the requested function or change its value, while pressing the knob causes entering a
given function or a confirmation of change in its value. To exit any function, use exit button.
IV. Controller functions
IV.a) Manual operation
Using this function, a user may start each active executive
device of each regulator manually, independently of the others,
and control alarm work.
CH pump
pump 2
Pulse
generator
knob (entering
MENU, selection
and approval of
settings)
Exit,
cancellation
of settings
Standby mode
(standby)
Current CH,
HCW
temperature
Manual
operation
Temp. HCW
preset
temperatur
e
48oC 40oC 45oC
CH HCW set.HCW