TECH ST-670 User manual

Pellet loader – user's manual
TECH
Declaration of Conformity No. 73/2012
Hereby, we declare under sole responsibility that the ST-670
230V 50Hz thermoregulator manufactured by TE H,
headquartered in Wieprz 1047A, 34-122 Wieprz, is compliant
with the Regulation by the Ministry of Economy. (Journal of Laws
Dz.U. 155 Item 1089) of July 21, 2007 implementing provisions
of the Low Voltage Directive (LVD) 2006/ 5/EC of January 16,
2007.
The ST-670 controller has been tested for electromagnetic
compatibility (EM ) with optimal loads applied.
For compliance assessment, harmonized standards were
used:
PN-EN 60730-2- :2011, PN-EN 60730-1:2012.
- 2 -

Pellet loader – user's manual
I. OpisDescription
Pellet loader controller is intended for maintenance of a proper
biofuel (pellet) level in pellet boiler hoppers with maximum measuring
sensors of 3.5 m.
ontroller operation involves a control of the biofuel level in the
hopper. The fuel level is determined by properly spaced capacitive
sensors. If the biofuel level drops below the bottom sensor, the controller
will start the main feeder supplying biofuel to the auxiliary hopper. Once
the auxiliary hopper is full, the main feeder is deactivated and fuel is
poured into the main hopper. After the auxiliary hopper is emptied, the
feeder is reactivated and the cycle is repeated until the fuel in the main
hopper reaches the top sensor level.
Additionally, half an hour before the night time the controller starts the
main hopper filling process irrespective of the current biofuel level.
- 4 -
Alarm
Network
switch
Exit,
settings
cancellation
Entrance to menu,
settings approval
inus (down)
Plus (up)
Bottom
sensor
Top
sensor
Feeder
Feeder
additional

TECH
II. Controller functions
This chapter describes the controller functions, methods for changing
the settings and navigation through the menu.
II.a) Main page
The main page is shown in the L D display during normal operation
with the following data displayed on it:
●current time
●feeder current
●icon „(„ (if the night mode is active)
By pressing the OPTION button the sub-menu is entered or the selected option is
activated. Press the EXIT button to exit the menu or cancel the setting.
II.b) Manual operation
The controller is equipped with the Manual Operation module for user's
convenience. When using that function, each unit is turned on/off
independently from the others.
By pressing the OPTION button a motor of the selected unit (feeder,
additional feeder or alarm) is activated and stays on until the OPTION
button is pressed again.
II.c) Clock
The user may define the current time by setting the clock. lock
setting is necessary for proper operation.
II.d) Day from...
This function is used to define the time when the controller will switch to
the day mode.
II.e) Night from...
This function is used to define the time when the controller will
switch to the night mode. The controller will start the main hopper filling
process half an hour before switching to the night mode.
- 5 -

Pellet loader – user's manual
II.f) Language
This function is used to select the language version of the controller
menu.
III. Protections
To ensure safe and failure-free operation, the controller is equipped
with a number of protections. When an alarm occurs the buzzer goes off
and a corresponding message appears in the display.
Feeder protection
Where the auxiliary hopper is not filled for a longer time (e.g. due to
lack of fuel) the controller will turn the feeder off and an alarm will be
activated.
Fuse
The controller is equipped with a WT 10A pipe fuse link to protect the
controller.
CAUTION: Do not use a fuse with a higher rating as this may cause
damage to the controller.
IV. Maintenance
The Pellet loader controller must be checked for the technical condition of
its wires before and during the heating season. You should also check the
mounting of the controller, clean it of dust and other contamination.
- 6 -

TECH
TECHNICAL DATA
Specification Unit.
1 Power supply V 230V/50Hz +/-10%
2 Power consumption W 7
3 Am ient temperature OC 5÷50
4
5
6
Feeder output load
Feeder additional output load
Fuse insert
A
A
A
7
1
10
IV.a) Assembly
NOTE: Installation should be performed by a properly qualified
technician! Do not install the unit with the power on (make sure that the
plug is disconnected from the mains)!
NOTE: Incorrect wiring may damage the controller!
The controller cannot be operated in a closed central heating system.
The installation must include safety valves, pressure valves and an
equalizing tank to protect the boiler from water boiling in the central
heating system.
We are committed to protecting the environment. Manufacturing electronic devices imposes
an obligation of providing for environmentally safe disposal of used electronic components
and devices. Hence, we have been entered into a register kept by the Inspection For
Environmental Protection. The crossed-out bin symbol on a product means that the product
may not be disposed of to household waste containers. Recycling of wastes helps to protect
the environment. The user is obliged to transfer their used equipment to a collection point
where all electric and electronic components will be recycled.
- 7 -