TECH ST-670 User manual

Table of contents

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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.

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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.

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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.

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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.

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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.

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