Operating The Regulator; Method Of Installation - Tech Controllers EU-21 BUFFER User Manual

User's manual
III. Operating The Regulator
The user may change the sensors' temperatures view by pressing the PLUS button (temperature T1)
and the MINUS button (temperature T2). After pressing the MENU button, the regulator will display
the user's menu which may be navigated by pressing PLUS or MINUS. In order to select the marked
function or the accept a change of setting, the user should confirm the selection by pressing MENU. In
order to cancel the change of settings or leave the menu, the user should use the EXIT button. If the
user holds the EXIT button on the main screen for 5 seconds, the stand-by mode is activated and the
pump's power supply is disconnected.
The controller's user's MENU contains the following functions:
1. Manual Operation
In this function, the user may check whether the selected device is functional.
2. Reheating Threshold
This option is used to adjust the reheating threshold, measured in the bottom part of
the buffer, the regulator will deactivate the device if it is reached.
3. Insufficient Heating Threshold
This option is used to adjust the insufficient heating threshold, measured at the top
part of the buffer, the regulator will activate the device if it is reached.
4. Factory Settings
After this option is activated, all the controller's own settings adjusted by the user are
lost and replaced by the settings saved by the manufacturer. From that moment, the
user may adjust their own parameters once again.
Signaled alarms
Error of top sensor (T2),
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Error of bottom sensor (T1)
NOTE:
If any of the alarms takes place, the controller will deactivate the device.
IV. Contact Output (additional device)
The controller may also cooperate with any external device activated on the basis of a contact/opening.
The output of the additional device, when the pump is not operating, is in the open position, while the
contact closes when the pump is activated.
V.

Method Of Installation

The device should be installed by a qualified electrician. The sensor should be mounted with the use of
a cable tie and separated from external factors with the use of electrical tape. The device's power supply
cable should be connected as follows: blue and brown - 230V, yellow - green (protective) should be
connected to the mass.
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