Tech Controllers EU-880 zPlD Manuale utente

EU-880 zPID

EU DECLARATION OF CONFORMITY

Hereby, we declare under our sole responsibility that EU-880 zPID manufactured by

TECH STEROWNIKI, head-quartered in Wieprz Biała Droga 31, 34-122 Wieprz, is compliant

with Directive 2014/35/EU of the European Parliament and of the Council of 26 February

2014 on the harmonisation of the laws of Member States relating to the making available on

the market of electrical equipment designed for use within certain voltage limits (EU OJ L

96, of 29.03.2014, p. 357), Directive 2014/30/EU of the European Parliament and of the

Council of 26 February 2014 on the harmonisation of the laws of Member States relating to

electromagnetic compatibility (EU OJ L 96 of 29.03.2014, p.79), Directive 2009/125/EC

establishing a framework for the setting of ecodesign requirements for energy-related

products as well as the regulation by the MINISTRY OF ENTREPRENEURSHIP AND

TECHNOLOGY of 24 June 2019 amending the regulation concerning the essential

requirements as regards the restriction of the use of certain hazardous substances in electrical

and electronic equipment, implementing provisions of Directive (EU) 2017/2102 of the

European Parliament and of the Council of 15 November 2017 amending Directive

2011/65/EU on the restriction of the use of certain hazardous substances in electrical and

electronic equipment (OJ L 305, 21.11.2017, p. 8).

For compliance assessment, harmonized standards were used:

PN-EN IEC 60730-2-9:2019-06, PN-EN 60730-1:2016-10.

Wieprz, 06.07.2022

User’s manual

I. Safety

Before using the device for the first time the user should read the following regulations carefully. Not

obeying the rules included in this manual may lead to personal injuries or controller damage. The user’s

manual should be stored in a safe place for further reference. In order to avoid accidents and errors it

should be ensured that every person using the device has familiarized themselves with the principle of

operation as well as security functions of the controller. If the device is to be sold or put in a different

place, make sure that the user’s manual is there with the device so that any potential user has access to

essential information about the device.

The manufacturer does not accept responsibility for any injuries or damage resulting from negligence;

therefore, users are obliged to take the necessary safety measures listed in this manual to protect their

lives and property.

WARNING

•High voltage! Make sure the regulator is disconnected from the mains before performing

any activities involving the power supply (plugging cables, installing the device etc.)

•The device should be installed by a qualified electrician.

•Before starting the controller, the user shoud measure earthing resistance of the electric

motors as well as the insulation resistance of the cables.

•The regulator should not be operated by children.

WARNING

•The device may be damaged if struck by a lightning. Make sure the plug is disconnected

from the power supply during storm.

•Any use other than specified by the manufacturer is forbidden.

•Before and during the heating season, the controller should be checked for condition of

its cables. The user should also check if the controller is properly mounted and clean it if

dusty or dirty.

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.

EU-880 zPID

II. Description

The EU-880zPID temperature controller is designed for use with central heating boilers. It controls the

following units: central heating (CH) water circuit pump, domestic hot water (DHW) pump, circulating or

valve pump, mixing valve and fan. Optionally, control functions can be also provided for two additional

mixing valves via ST-61 modules.

The ST-880zPID controller is a unit with a continuous output signal using a modified PID control

algorithm. In this type of controller the blowing power is calculated by measuring the boiler temperature

and the flue gas temperature as measured at the outlet of the boiler. The fan is run continuously and the

blowing power depends directly on the measured temperature of the boiler, the flue gas temperature and

the difference between these parameters and their set-points. The advantages of a modified PID

controller include the ability to maintain a stable set-point temperature without any unnecessary

overshoot or oscillations.

When using this type of controller equipped with a flue gas outlet sensor fuel savings can be

achieved from a few percent up to around 15 percent with the output water temperature kept at a very

stable label, resulting in longer life of the exchanger (boiler). As the flue gas temperature at the boiler

outlet is controlled this results in low emissions of dust and gases that are harmful to the environment.

The thermal energy of the flue gas is not wasted and released into the chimney, but is instead used for

heating.

Below we present the results of tests conducted with the use of the Tech controller with PID control:

User’s manual

and the same controller without PID control:

II.a) Basic concepts

Lighting - cycle that lasts until the flue gas temperature reaches a specific value, provided that it does

not drop below this value for 4 minuts (factory setting for lighting time).

Operation – after the lighting procedure is completed the controller will go into operating cycle mode

and the display will show the message: ”PID:OPERATION”. This is the main operating status of the

controller in which the blower function is run automatically and fuel is supplied automatically based on

the PID algorithm oscillating around the user’s set-point temperature. If the temperature suddenly rises

by more than 5°C above its set-point value so-called monitoring mode is activated.

Monitoring mode - this mode will start automatically if during any time that the controller is in operating

cycle mode the temperature rises by more than 5°C above its set-point value. If this happens in order to

lower the circulating water temperature the controller will switch over from PID control to manual settings

(as per parameters set in the Installation menu>>Monitoring mode) and the display will show the

message: "PID:MONITORING".

Shutting off - if the flue gas temperature drops below a specified value and does not rise above this

value for 10 minuts (factory setting for shutting off time), the controller will go into shut off mode. In

this mode the blower and feeder will stop running and the display will show the message: "SHUT OFF".

If there is power failure the thermoregulator will stop working.

When power is restored the controller will resume operation at its pre-set parameters restored from its

built-in memory. No saved thermoregulator parameters are lost when there is power failure.

EU-880 zPID

III. Controller functions

This chapter describes the functions of the controller, how to change its settings and navigate its menus

III.a) Main page

During normal operation of the controller the graphic display shows the main page. Depending

on the operating mode its corresponding main screen is displayed (see Section II.C).

To move to the first level menu press the pulser knob. The display shows the first four menu

options. To access more options turn the knob. To select a function, press the knob. To change parameters

follow the same procedure. For your changes to be entered it is necessary to confirm them by pressing

the pulser at CONFIRM. If you do not want to make any changes within a given function press the pulser

at CANCEL. To exit the menu use the EXIT key.

If necessary, you can use the standby mode button located on the controller housing to rapidly

turn off all actuators. This is an additional safeguard feature for use in an emergency situation that allows

you to power down all controller actuators (fan, pump, valve).

NOTE: Power is not disconnected from the controller when it is in standby mode.

III.b) Lighting / Blowing

With this function you can easily light the boiler. After you light an initial area an automatic lighting

cycle will be activated. With the PID function ensuring the selection of optimal parameters the boiler will

smoothly enter its operating mode.

III.c) Screen view

You can use this function to select one of four thermoregulator

operation main screens:

•CH screen (displays the current

mode of operation of the boiler),

•main valve (displays the operating

parameters of the main valve),

•valve 1 (displays the operating pa-

rameters of additional valve 1)

•valve 2 (displays the operating pa-

rameters of additional valve 2)

•service screen –this view is not ac-

cessible to the user. It is a special screen view for use only by the

manufacturer.

The screen view can be also changed directly from the home page by

pressing EXIT.

User’s manual

NOTE: To enable the views showing valve parameters the respective valves must be pre-installed and

configured properly by a installation fitter.

III.d) Set-point CH temperature

This option is used to adjust the

set-point temperature of the boiler. You

can change the boiler temperature within

an adjustable temperature range of 45OC

to 85OC. The central heating set-point can

be also changed directly from the

controller main screen by turning the

pulser knob.

III.e) Set-point DHW temperature

This function allows you to set your

required set-point temperature for

domestic hot water. You can adjust this

temperature within a range from 30OC to

60OC.

III.f) Type of fuel

This option is used choose one of three

types of fuel (coal, fines or wood) for

burning in the boiler. For each type of fuel

chosen a suitable operation mode for the

fan is selected to match the actual process

of combustion in the boiler.

III.g) Manual operation

For your convenience the controller

is equipped with a Manual operation

module. When this function is active each

actuator (blowing, central heating pump,

hot water pump, additional circulating or

valve pump) can be switched on or off

independently and each active mixing valve

can be closed, opened or stopped.

You can start the motor of your

selected device by pressing the pulser. The

device will remain activated until the

pulser is pressed again.

EU-880 zPID

Additionally, an option to control the blowing power is available

where you can set any fan speed in manual mode.

III.h) Pump operation modes

This function allows you to select one of the following four boiler operation

modes:

III.h.1) House heating

When you select this option the controller

switches over to a mode where heating is

provided only to heat the central heating

circuit. The central heating pump begins to

run above the pump activation temperature

(factory set at 38OC). The pump will turn off

below this temperature (minus a hysteresis

of 2°C).

III.h.2) Boiler tank priority

In this mode, the boiler tank (hot

water) pump will be switched on first to run

until the set-point temperature is reached,

after which the pump will be turned off and

the CH circulating pump will be enabled.

The central heating pump will run all the

time until the boiler tank temperature drops

below its set-point by the hot water hysteresis value. At that moment the CH pump will turn off and the

HW pump will turn on (both pumps operating alternately).

In this mode the fan and the feeder are run only up to 62OC as measured at the boiler (instantaneous

set-point) so as to prevent overheating of the boiler.

NOTE: The boiler must be fitted with check valves on the central heating and hot water pump circuits.

The valve mounted on the hot water pump is to prevent drawing hot water from the boiler tank.

III.h.3) Pumps in parallel

In this mode both pumps begin to run

together (in parallel) above the pump

activation temperature. However, these

temperatures may vary for each pump,

depending on your settings. When this is so

one of the pumps will switch on earlier than

the other one, but after both thresholds are

crossed both pumps will run together. The central heating pump will run all the time while the hot water

pump will turn off when the boiler tank set-point temperature is reached. It will turn on again when the

temperature drops by the preset HW hysteresis value below its set-point.

User’s manual

III.h.4) Summer mode

Once this function is activated the central

heating pump will be off and the DHW pump

will turn on above the preset activation

temperature and will work continuously

until the temperature drops below the

activation temperature by the hot water

hysteresis value or until the following

conditions are met:

(boiler temperature) + 2°C ≤ (boiler tank temperature)

In summer mode you only enter the set-point temperature of the boiler, which is also understood to

mean the set-point temperature of the boiler tank.

III.i) Weekly control

The function is used to programme daily changes in the boiler temperature. The preset

temperature deviations are within the range of +/-100C.

Step #1:

The user needs to set current time and date first (Installer menu > Clock).

Step #2:

The user sets temperature values for individual days of the week (Set mode 1):

Monday– Sunday

Select specific hours and required deviations from the preset temperature (how many degrees the

temperature should rise or drop) for each day of the week. Additionally, the preset values can be copied

to facilitate the operation.

Example

Monday

preset: 3 00 , temp. -100C (temperature change– 100C)

preset: 4 00 , temp. -100C (temperature change – 100C)

preset: 5 00 , temp. -100C (temperature change – 100C)

In such a case, if the temperature preset on the boiler is 60ºC, it will drop 10ºC to 50ºC between

3 a.m. and 6 a.m. on Monday.

As an alternative to the temperatures being preset separately for individual days, the

temperatures can also be set collectively, in the second mode, for the working days (from Monday to

Friday) and the weekend (Saturday and Sunday) separately - Set mode 2.

Monday - Friday; Saturday - Sunday

Similarly to the previous mode it is necessary to select specific times and required deviations from the

temperature preset for the working days (Monday - Friday) and the weekend (Saturday, Sunday).

Example

Monday - Friday

preset: 3 00 , temp. -100C (temperature change – 100C)

preset: 4 00 , temp. -100C (temperature change – 100C)

preset: 5 00 , temp. -100C (temperature change – 100C)

Saturday - Sunday

preset: 16 00 , temp. 50C (temperature change +50C)

preset: 17 00 , temp. 50C (temperature change +50C)

preset: 18 00 , temp. 50C (temperature change +50C)

EU-880 zPID

In this case, if the preset boiler temperature is 60ºC, the temperature will drop 10ºC to 50ºC between 3

a.m. and 6 a.m. on each day from Monday to Friday. However, the temperature will rise 5ºC to 65ºC

during weekend (Saturday, Sunday) between 4 p.m. and 7 p.m.

Step #3:

The user enables one of two preset modes (Mode1, Mode2) or disables the weekly control option.

Once the mode is enabled the value of the deviation currently set is displayed on the main page of the

controller next to the preset central heating system temperature. This, additionally, indicates that the

weekly control is active.

Data deletion function is a simple method to remove all previously saved weekly programme

settings to enter new settings.

III.j) Room thermostat reduction

This feature works in

conjunction with a two-state room

thermostat (standard controller) or a TECH

controller. The room thermostat reduction

parameter specifies the temperature value

by which the CH set-point is to decrease

after the room thermostat is heated up

(when the set-point temperature in the house/flat is reached). The adjustment range for settings is

between 0 and 30°C.

III.k) Language selection

Use this function to change the language settings of the controller.

III.l) Factory settings

The controller is pre-configured for its

operation. However, its settings should be

modified to meet your individual needs.

You can return to the factory settings at

any time. If you enable the factory

settings option you will lose all of your

own boiler settings, which will replaced

with the settings saved by the boiler manufacturer. From now on you can re-set your own parameters of

the boiler.

III.m) About the program

You can use this function to check the software version installed in the

boiler controller.

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