TECH ST-37 Montageanleitung

ST-37 Instruction Manual

TECH

Declaration of Conformity No. 4/2004

Hereby we declare under sole responsibility that the ST-37

230V 50Hz thermoregulator manufactured by TECH ul. St.

Batorego 14 34-120 Andrychów is compliant with the

Regulation by the Ministry of Economy. (Journal of Laws Dz.

U.03.49.414) of 12 March 2003 implementing provisions of

the Low Voltage Directive (LVD) 2006/95/EC and the

Regulation by the Ministry of Infrastructure (Journal of Laws

Dz.U.03.90.848) of 2 April 2003 implementing provisions of

the Directive 2004/108/EC.

The ST-37 controller has been tested for electromagnetic

compatibility (EMC) with optimal loads applied.

For compliance assessment harmonized standards were used:

PN-EN 60730-2-1:2002.

The product was CE-marked for the first time on: 1 December

2004

Co-owners:

Paweł Jura Janusz Master

Andrychów 1 December 2004

- 2 -

TECH

ATTENTION!

ELECT IC CU ENT!

Make sure the regulator is unplugged before

working on the power supply (cable

connections device installation etc.)!

All mounting works must only be carried out

by qualified electricians.

Before activating the controller measure the

electric motor resetting efficiency check the

boiler and inspect wire insulation.

- 3 -

ST-37 Instruction Manual

I. Description

The ST-37 temperature regulator is used for controlling the water circulation

pump hot consumption water pump blow (fan) and fuel feeder.

If the furnace temperature is lower than the setpoint temperature the

regulator is operated in its duty cycle i.e. the blow is active and the

operation time of the fuel feeder is set by the user (both operation and

stand-by time is set).

If the furnace temperature is equal to or higher than the setpoint

temperature the regulator is operated in its sustain cycle.

In each case the software version is customized to the furnace

manufacturer’s requirements. Please send all comments on the software to

the boiler manufacturer.

Your controller should be set according to your individual needs depending on

the type of fuel and boiler used. TECH shall not be held responsible for

incorrect settings.

- 4 -

Return from

menu resetting

Enter submenu

confirm

Plus Minus

Hot

Consumption

Water Pump

Central

Heating

Pump

Blow

Feeder

Alarm

TECH

II. Regulator Functionality

This chapter describes regulator functionality how to change settings and

navigate in the menu.

II.a) Main Page

During normal operation the LCD display shows the main page with the

following data:

Boiler temperature

Setpoint temperature

With the display you can instantly change the setpoint temperature with

PLUS and MINUS. Pressing OPTIONS will move you to the first level. The

display shows the first two lines of the menu. To navigate in each menu use

PLUS and MINUS. Pressing OPTIONS will move you to the next submenu or

will enable an option. Pressing EXIT will move you to the home menu. When

the main page is displayed pressing (and holding) EXIT will inform you

whether the hot consumption water pump is on or off.

II.b) Manual Mode

For your convenience the regulator has a manual mode module. In this

mode each individual element is enabled and disabled independently of the

other.

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22oc 56oc

C.H. ON

22oc 56oc

C.H. ON

Feeder

BLOW

Manual Mode

Feed Time

ST-37 – Instruction Manual

Pressing OPTIONS will enable the fuel feeder. The feeder will operate until

OPTIONS is pressed again.

Press OPTIONS to enable / disable the blow.

Press OPTIONS to enable / disable the central heating pump.

Press OPTIONS to enable / disable the (water heater) hot consumption water

pump.

Press OPTIONS to enable / disable the alarm.

II.c) Feed Time

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BLOW

C.H. Pump

00 min 20 sec

Feed Time

C.H. Pump

H.C.W. Pump

22oc 56oc

C.H. ON

Manual Mode

Feed Time

H.C.W. Pump

Alarm

Feeder

BLOW

F D R

BLOW

TECH

With this function you can set the operation time for the fuel feeder. Set the

operation time according to the type of fuel and boiler used.

II.d) Feed Interval

With this function you can set the stand-by time for the feeder depending on

the type of fuel used in the boiler. Incorrect operation and stand-by times

may cause the boiler to malfunction i.e. inability to burn all carbon and to

reach the setpoint temperature. Setting correct times will ensure correct

boiler operation.

II.e) Fan Operation in Sustain Mode

With this function you can set the blow time in the sustain mode.

II.f) Fan Interval in Sustain Mode

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22oc 56oc

C.H. ON

Feed Time

Feed Interval

00 min 40 sec

Feed Interval

22oc 56oc

C.H. ON

Feed Interval

Fan Sustain Duty

00 min 10 sec

Fan Sustain Duty

22oc 56oc

C.H. ON

Fan Sustain Duty

Fan Sustain Pause

30 min 00 sec

Fan Sustain Pause

ST-37 – Instruction Manual

With this function you can set the blow interval in the sustain mode.

The two menus are used for regulating the furnace while in the sustain

mode. This is to prevent damping of the furnace when the boiler temperature

is over the setpoint value.

ATTENTION: Incorrect settings may cause a continuous increase of the

temperature! In particular interval in the sustain mode should not be too

short and operation in the sustain mode should not be too long.

II.g) Feeder

With this function you can disable or enable the fuel feeder depending on its

condition (e.g. in order to damp the boiler).

II.h) Blow

With this function you can disable or enable the blow depending on its

condition (e.g. in order to damp the boiler).

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22oc 56oc

C.H. ON

Fan Sustain Pause

Feeder

On *

Off

22oc 56oc

C.H. ON

Feeder

Blow

On *

Off

TECH

II.i) Pump Switch on Temperature

With this function you can set the temperature that will activate the central

heating pump and the hot consumption water pump (the temperature is

measured on the boiler). Below the setpoint temperature the pumps are

disabled; above the setpoint temperature the pumps are enabled but their

operation is based on the settings i.e. the pumps are enabled alternately (see

the pump priority function or fixed central heating pump)

II.j) Central Heating Hysteresis

With this function you can set the hysteresis of the setpoint temperature.

This is a difference between the temperature of entering into the sustain

cycle and the temperature of returning to the duty cycle (e.g.: when the

setpoint temperature is set to 60°C and the hysteresis is set to 3°C entering

into the sustain cycle will be effected after the temperature reaches 60°C

whereas return to the duty cycle will be effected after the temperature drops

to 57°C).

- 9 -

22oc 56oc

C.H. ON

Blow

Pump Activ Temp

35 oc

Pump Activ Temp

C.H. Hysteresis

22oc 56oc

C.H. ON

2 oc

C.H. Hysteresis

ST-37 – Instruction Manual

II.k) Hot Consumption Water Hysteresis

With this function you can set the hysteresis of the setpoint temperature on

the water heater. This is a difference between the setpoint temperature

(required by the water heater) and the actual temperature on the boiler (e.g.:

when the setpoint temperature is set to 55oC and the hysteresis is set to 5oC.

After reaching the setpoint temperature i.e. 55°C the hot consumption water

pump is activated causing the central heating pump to be activated. The hot

consumption water pump will be activated again when the temperature drops

to 50°C).

II.l) Blow Force

With this function you can control the fan speed. The adjustment range is 1-

10 (referred to as gears). The higher the gear the higher the speed with the

1st gear being the minimum and the 10th being the maximum speed of the

fan.

Fan speed can be adjusted with PLUS and MINUS. Initially the fan runs

always at full speed so that it is possible to start the fan with the motor being

slightly dusty.

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22oc 56oc

C.H. ON

H.C.W. Hysteresis

Blow Force

Gear 10

Blow Force

22oc 56oc

C.H. ON

5 oc

H.C.W. Hysteresis

C.H. Hysteresis

H.C.W. Hysteresis

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