Manual Centrala Electrica ekco.l1n487.pdf

8/9/2019 Manual Centrala Electrica ekco.l1n487.pdf

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KOSPEL S.A. UL. OLCHOWA 1, 75-136 KOSZALIN

Please read and follow the installation and operating instructions carefully to ensure safe and trouble freeappliance operation.

Kospel S.A. may make minor changes if necessary in the appliance that will not be shown in the operatinginstruction, so long as the main features of the unit remain the same.

Used product can't be treated as general communal waste. Disassembled appliance has to be deliveredto the collection point of electrical and electronic equipment for recycling. Appropriate utilisation of usedproduct prevents potential negative environmental influences that may occur as a result of inappropriatehandling of waste.

In order to get more detailed information about recycling this product you should contact the local govern-ment unit, waste management service or the shop where this product has been purchased.


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Contents

Introduction 4

Installer instruction manual

Technical data 5 Construction 6Installing the boiler 8 Connection of external appliances 11Start–up 13

User instruction manual

Operating 13Failures 16Storing 17

Boiler kit 17


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In order to install and operate the boiler properly, study this manual thoroughly. A long life and faultless per-formance of this appliance depends mainly on its proper installation and operation.

EKCO.L1z / EKCO.L1Nz is suitable for central heating system that use the water or antifreeze solution as themedium carrying heat. A power of boiler should be matched with heat loss of a given building.

Power of boiler / An approximate heating area:4 kW 30 ÷ 50 m2

6 kW 40 ÷ 70 m2

8 kW 60 ÷ 100 m2

12 kW 100 ÷ 140 m2 15 kW 130 ÷ 180 m2

18 kW 150 ÷ 220 m2

21 kW 180 ÷ 250 m2

24 kW 220 ÷ 300 m2

30 kW 225 ÷ 375 m2

36 kW 270 ÷ 450 m2

While calculating demand for thermal energy, a number of factors needs to be taken into consideration:- building cubature- value of heat transfer through the walls, windows and ceilings

- level of room ventilation- heat accumulation

The EKCO.L1z / EKCO.L1Nz is a low temperature boiler intended for unvented or vented central heating sys-tems with forced circulation (protected according to legally binding norms). The boiler features automatic workcontrol and low maintenance requirements.

The boiler is equipped with following safety devices:- a system of flow control,- an inner temperature controller,- a safety temperature limiter,

- a relief valve.and the following accessories: circulation pump, expansion vessel (EKCO.L1Nz model only), automatic vent

valve.

A boiler and the necessaryinstallations should be carriedout by professional.

Introduction


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Technical data

5GB-016B_p.487 Installer instruction manual

Max. pressure MPa 0,3

Min. pressure MPa 0,05

Out flowing water temp. °C 40 ÷ 85

Max. water temp. °C 100

Overall dimensions (height x width x depth) mm EKCO.L1z 660 x 380 x 175 EKCO.L1Nz 700 x 425 x 285

Weight kg EKCO.L1z ~16 EKCO.L1Nz ~24

Water connection G 3/4"

Expansion vessel l 6

Safety class IP 21

Rated power consumption kW 4 6 8 4 6 8

Rated voltage 230V~ 400V 3N~

Rated current A 17,4 26,0 34,8 3 x 5,7 3 x 8,7 3 x 11,7

Fuse rated current A 20 32 40 10 16

Min. connecting wires section mm2 3x2,5 3x4 3x6 5x1 5x1,5

Max. connecting wires section mm2

5 x 16

Max. allowed network impedance Ω 0,44 0,39 0,34

Rated power consumption kW 12 15 18 21 24 30 36

Rated voltage 400V 3N~

Rated current A 3x17,3 3x21,7 3x26,0 3x30,3 3x34,6 3x43,3 3x52,0

Fuse rated current A 20 25 32 40 50 63

Min. connecting wires section mm2 5 x 2,5 5 x 4 5 x 6 5 x 10

Max. connecting wires section mm2

5 x 16

Max. allowed network impedance Ω 0,14 0,09


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The boiler EKCO.L1z consists of,among others, the following mainparts:- a heating box [1], heating ele-

ments heat circulating water- a control board [12]- a circulating pump [5] that forces

water to flow

There are safety devices that pro-tect the boiler from failures anddestruction:- a safety temperature limiter [6], if

the temperature of water reaches1000C the device cuts off thepower supply, and the boiler willnot operate

- a flow sensor [2], it will not allowthe boiler to start heating beforeit reaches the right flow

- a safety valve [4], it is on if thepressure in the central heatingsystem goes over the pressurelimit [3bar]

Fig.1 Construction of EKCO.L1z [1] - heating box [2] - flow sensor [3] - manometer

[4] - safety valve [5] - circulating pump [6] - safety temperature limiter [7] - water inlet [8] - water outlet [9] - ZIO board [10] - power board [11] - automatic vent [12] - control board PF - connection points of phases con-

ductors PN - connection points of protective and

neutral conductorWP - electric cable-bush

M - points of fixing the boiler RP - point of the room thermostat con-

nection

1Construction

6 Installer instruction manual


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2 Fig.2 Construction of EKCO.L1Nz [1] - heating box [2] - flow sensor [3] - manometer [4] - safety valve [5] - circulating pump [6] - safety temperature limiter [7] - water inlet [8] - water outlet [9] - ZIO board [10] - power board [11] - automatic vent [12] - control board [13] - expansion vessel and connection PF - connection points of phases con-

ductors PN - connection points of protective and

neutral conductorWP - electric cable-bush

M - points of fixing the boiler RP - point of the room thermostat con-

nection



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- a wet central heating system must be flushed out before boiler installation;- do not install any barrier fittings (e.g. valves) on the outlet of the safety valve [4] (fig.1, 2);- this appliance must not be installed in a humid place or in a place exposed to the danger of explosion;- this appliance must be protected by filter with magnetic insert (included in the boiler kit).

Conditions of installation- appropriate power supplies;- an efficient electrical installation

which has been completed in ac-cordance with the binding normsof electric installation;

- a wet central heating systemequipped with appropriate ex-

pansion vessel made accordingto binding norms for closed oropen systems.

- a wet central heating systemmade according to standards,equipped with appropriate ex-pansion vessel:

All installation works have to becarried out with water and powersupplies shut off .

Fig.3 Central heating installation

diagram PI - manometer ZK - cut-off valve F - magnetic filter RW - expansion pipe NW - expansion vessel ZT - thermostatic valve ZP - passage valve G - radiator RTP - room programmed thermostat ZU - differential pressure relief valve

A boiler with a hot water cylinder ZTD - three-way valve ZAS - hot water cylinder TZ - WE-008 sensor or cylinder thermo-

stat

3

The EKCO.L1N is equipped with an expansion vessel (capacity: 6l, pressure: 1,5 bar). The expansion vessel issufficient against the following capacities of the heating system at given temperatures of the medium and centralheating system pressure.

Installing the boiler


Its recommended for electric installation with thermostatic radiatorvalves to apply the differentialpressure relief valve. It allows the

system to keep minimal flow ofmedium through the boiler andreduce noises in installation duringthe thermostatic valves closing. Thevalve must be installed in bypassconduit (before the boiler) according to manufacturer’s instruction.

A magnetic filter must be installed on return pipe of central heating installation system(before boiler inlet). The filter must be installed in horizontal position, accordingly to flowdirection (see arrow on the filter body), with the magnetic insert chamber to the bottom.

Shall the capacity of the wet central heating installation be larger, an extra expansion vessel should be installed on it.


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Inlet Outlet

Fig.4 Installation of the boiler ona wall

a - EKCO.L1z b - EKCO.L1Nz

4b

Inlet Outlet

4a

Installation1. Hang the boiler up in a vertical position on fixing screws with inlet and outlet pipes to the bottom, maintain-

ing clearances from the walls and the ceiling (fig.4).2. Connect the boiler to a central heating system equipped with cut-off valves (fig.3).3. Fill the central heating system with a treated water that substantially extends the life of the heating elements.


While applying thermostat make sure there is no

voltage on its entry!

Do not connect any voltageinto RP, NA, WZ inlets! This canresult in permanent ZIO moduledamage.

!

Temperature of heating medium (feedand return)

Capacity of central heating system Pressure in central heating system

[°C] [l] [bar]

85/70 58

1,5

70/55 79

55/45 103

50/40 115

45/35 128


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Electric installationshould be equipped with resid- ual current protective devicesand other solutions which willensure disconnecting the heater

from the source of power (intervals between all their polesshould not be less than 3 mm).

Fig.5 Connection to elect ricmains

!


5 4. Vent the wet central heating sys-tem.

5. Connect a boiler to the electricalsystem (fig.5, 1 or 2).

6. Fix the room thermostat, in ac-cordance with manual instruc-tion.

7. Connect the room thermostat (byusing two wires 2 x 0,35 mm2)

to the ZIO terminal (RP entry) asshown in fig 7a.

8. Once you have finished theabove procedures, you can startthe boiler according to “start-up”section (page 13).

6a 6b

Fig.6a Connection to the threephase system.

PNL - points of neutral and protectiveconductor connection

PF - points of phase conductors connec-tion

[6] - temperature limiter

Fig.6b Connection to the singlephase system (for boilersof 4kW,6kW and 8kW)

PNL - connection points of neutral, pro-tective and phase conductors

[6] - temperature limiter [15] - additional conductors (for single

phase system only)

N

L

N

L

Attention: 4, 6 and 8kW boilersare factory preset to work assingle phase boilers [figure 5b].If you intend to connect theboiler to a three-phase installa-

tion, take off the [15] wire set.


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Room thermostat (RP entry) -when the voltage free contact getsopened the boiler will stop heating.The entry is responsible for boilercontrol depending on the room tem-perature. It is described in sectionINSTALLATION, (page 10).

WE-008 Cylinder water tempera-ture sensor (Tzas entry) – please,refer to fig. 7 to see how to connect

it to the boiler. Attention, make surethat the white wire is ‘+’ and the yel-low wire is ‘-‘. It will not work if youconnect it the other way round. If it isnecessary, you can extend the wires,however, please remember that theshorter the wires the better. If the wire

Connection of externalappliances

Fig.8 Cooperation of master boilerwith EKCO boiler

KN - master boiler PI - manometer F - filter RW - expansion pipe NW - expansion vessel ZT - thermostatic valve ZP - passage valve G - radiator RP - room programmed thermostat ZTD - three-way valve ZAS - cylinder TZ - cylinder thermostat or domestic hot

water sensorZZ - non-return valve

7

Fig.7, 7a ZIO board ZTD - three-way valve with actuator ZAS - connection point of three-way

valve Tzas - connection point of water temp.

sensor (in cylinder)WE - 008 KOSPEL - water temp. sensor(in cylinder)

C - cylinder thermostat A - room thermostate Auraton 2005

(see fig.7a) B - master appliance WZ - connection point of cylinder ther-

mostat RP - room thermostat connection point NA - master appliance connection point MR - radio module connection point

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RP, WZ, NA – dead-voltage entries. Do not connect any voltage circuit!


7a

w h i t e

y e l l o w

black

brown

blue

room thermostateAuraton 2005


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is too long there may occur disturbances and it may not work properly. The wires should not run close to mainscables, they must not go around other electric wires.

Cylinder thermostat (Tzas entry) – a voltage free entry. When the Tzas entry is closed, the boiler will switchover to heat the cylinder.

Three-way valve control (ZAS) – Kospel SA suggests using VCZMH600E valve manufactured by Honeywell witha motor operator VC6012ZZ00 and a wire 45900445-013B. The three-way valve control is performed by applying230V on the brown wire or the black wire (blue is the neutral wire). Voltage on the valve through the brown wirewill switch the valve to a position, where the pass between the “AB” inlet and the “B” outlet gets opened. Shall

voltage be passed to the black wire, the valve will get switched to a position in which the channel between the“AB” inlet and the “A” outlet will be opened. The “AB” inlet and the “A” and “B” outlets are marked on the valve.The entry “A’ is to supply the central heating system and the entry “B’’ is to supply the cylinder as shown in fig.7

Master appliance (NA entry) – you can limit the power used, i.e. the boiler can be switched off while anotherappliance consumes electricity. To do it, an electrician should install in line an extra open contact in to the NAentry (voltage free entry), so that when a master appliance gets on, the contact will be opened the boiler switchedoff. When the NA contact gets opened, heating will get off and the pump stopped. The EKCO boiler may also workas the second boiler. If it is so, the master boiler by opening the NA entry will stop heating of EKCO. However,the mode of the three-way valve control stays on so a cylinder is charged by the heat from the master boiler.

Radio module “MR” – there is also an option of a room thermostat that can control the boiler with a radio

signal. If this is your wish, you should install a radio module (receiver) as shown in figure 7. Next, take the aerialout through the opening at the back of the boiler cover. After the module is installed, make sure that it works byobserving two (2) control lamps on the receiving module:a) insert batteries into the transmitter (sender) and allow 5 minutes for synchronizing with the receiver,b) make sure that the transmitter is within the radius of 20 m from the receiver,c) observe the green control lamp that informs about receiving the signal, it is on for 1s at 1 minute intervals.

Incorrect work of the radio system may be caused by the following reasons:a) too long a distance between the transmitter an the receiver, it works up to 20 m in horizontal distance and

within adjacent floors vertically,b) batteries are not charged up,c) improperly installed aerial, for example within the boiler,d) damaged aerial wire.



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1. Disconnect the NA contacts (fig.7)

2. Set the pump on manual mode.

3. Switch the boiler on (press button)

4. Make sure that a proper flow through the boiler is reached (the "B" indicatoris on with a constant light, see fig.11). The pump should get vented itselfafter a short working time, however, if necessary, vent the pump in thefollowing way:

• close the cut-off valve on the outlet

• set the pump on the highest gear (fig.9)

• undo carefully the vent plug (fig.10) on the pump• after 15-30 s. do the vent plug up

• open the cut off plug5. Switch the boiler off (hold the button for 2 seconds)

6. Connect NA contact

7. Set the pump on automatic mode

8. Switch the boiler on ( button, fig.11).

9. Set the temperature of the medium at required temperature, see “Operat-ing” section.

9

10

Fig.9 Setting the pump on the high-est gear

Fig.10 Pump venting

Start–up

Fig.11 Front control panelA - cylinder indicatorB - pump and flow indicatorC - heating on and room thermostat indi-

catorD - inlet temperature indicatorE - outlet temperature indicator

F - medium temperature setting indicatorG, H, I - measurement value indicators

J - LCD displayK - temperature of water in the cylinder

indicatorL - switches

Recommendations

We recommend the following routine maintenance in order to assurefaultless operation:

1. Do not drain the water from central heating system after the heatingseason.

2. Get rid of any effluent from the central heating system and boilerconnection points.

3. Leave the controller in stand-by mode and do not cut off power supplybetween the heating seasons.

4. Contact with authorised serviceman for an inspection before everyheating season.

11Operating



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Control panel operation

The control panel consists of two working areas: the signalling area (elements: A-K) and control area (L). Theuser can select three operating modes: stand-by, winter (central heating or central heating + cylinder heating),summer (cylinder heating).

Stand-by mode

To set the stand-by mode press and hold for 2 seconds. Note: Do not cut power supply off between heat-ing season. When the control panel is switched to “stand-by” mode all indicators are off. In this mode the boiler

is off but the pump is activated every day for 15 minutes (what protects the boiler and the whole central heatinginstallation from being blocked and silted up). The pump will run every day at the same time, it will be the timeof the day when you switch it to the ”stand-by” mode e.g., if you set the pump on a “stand-by” mode at 6 p.m.the timer will activate the pump everyday for 15 minutes starting at around 6 p.m.

Winter mode

If you press the , button , the winter mode will be set ( when you set from “stand-by” to “winter” mode).The medium temperature setting will appear on the LCD display. Raise and lower the temperature by pressing

buttons The temperature setting range: 400 to 850C.

In order to ensure smooth and economic working, the temperature of the medium has to be set in accordancewith current weather conditions (outdoor temperature), taking into account parameters of the heated building (e.g.

its compactness, insulation, windowing etc.). Exemplary characteristics are shown on fig.12. Optimum settingsof the medium temperature limit running costs of the boiler.

In the ‘winter” mode (central heating + hot water cylinder heating) the three-way valve directs the water(medium)to central heating installation or hot water cylinder coil. The priority is to heat the hot water cylinder at the sametime the central heating system is off.

If the WE-008 sensor for temperature measurement in hot water cylinder is applied (connected to the Tzas entryon the ZIO board) pressing the button switches the controller for water temp. setting in the hot water cylinder(indicator “K” is lighted). The medium temperature setting for hot water cylinder will appear on the LCD display(J). Raise and lower the temperature by pressing .

If the thermostat for temperature measurement in hot water cylinder is applied (connected to the Tzas entry onthe ZIO board) , the temperature setting on front panel is not available. Setting is performed directly on the hotwater cylinder thermostat.

Be aware that the working parameters show approximate value only. Next pressing of let you return tomedium temp. setting mode for central heating system. Pressing of or (when you checking the parameters)let you return to medium temp. setting for central heating system.

“A” “B” and “C” indicators informs about the heating stages:


The boiler is preset by factoryto co-operate with a centralheating system.

The advanced settings enableyou to set the boiler to co-operate with a hot water cylinder.


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• Indicator “A” is “on” – the boiler co-operates with the hot water cylinder.• Indicator “B” is “on” - ” indicator informs that the pump is working

and there is a proper flow through the boiler. If the indicator flickers, itmeans that there is a not sufficient flow rate or there is no flow rate atall. It is an alarm state, which prevents the boiler from heating.

• Indicator “C” - when green light is “on” the settled temperature hasbeen achieved

• Indicator “C” – when red light is “on” the boiler is operating• Indicator “C” - when light is off room thermostat temperature has been

achieved, the room thermostat switches the heating off.

Summer mode

If you short press the button , the summer mode will be set ( whenyou set from “winter” to “summer” mode). In this mode the three-way valve

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directs the water (medium) to the coil inside the hot water cylinder only. The “summer” mode should be usedafter the heating season.

If the WE-008 sensor for temperature measurement in hot water cylinder is applied ( connected to the Tzas

entry on the ZIO board) pressing the button allows to set temperature.If the thermostat for temperature measurement in hot water cylinder is applied (connected to the WZ entry on

the ZIO board) , the temperature setting on front panel is not available ( the panel shows “--”). Setting is performeddirectly on the hot water cylinder thermostat.

In this mode the button is inactive. Checking the inlet and outlet water temp., flow rate and power is notavailable. To switch to winter mode press .

Fig.12 Dependance between me-dium temperature and theoutdoor temperature (at20°C room temperature)



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Symptom Reason Action

The indicators on the front panelare off

No power supply

Check parameters of the power mains and fuses

Call an authorized service or if not available inyour area, contact [email protected]

The “B” indicator flickering

Pump blockedUnblock the pump by undoing a screw on thepump casing by mechanical turning of theshaft of the rotor

Water does not circulate through the boiler - the

boiler is blocked

Too much air in the central heating system - ventthe system, the pump and the boiler

Check patency of the central heating system,clean the filter

A failure of pump’s power supplyCall an authorized service or if not available inyour area, contact [email protected]

A failure of the pump or flow sensorCall an authorized service or if not available inyour area, contact [email protected]

The “C” indicator does not light, theroom thermostat signals switching onof the boiler

A failure of the electric installation connecting theroom thermostat

Check the room thermostat’s connecting instal-lation

A failure of electronic moduleCall an authorized service or if not available inyour area, contact [email protected]

The “D” indicator flickering A failure of inlet water sensor, the boiler oper-ates at emergency mode

Call an authorized service or if not available inyour area, contact [email protected]

The “E” indicator flickering A failure of outlet water sensor, heating is blockedCall an authorized service or if not available inyour area, contact [email protected]

The “C” indicator flickering andmaster appliance does not work

A failure of the electric installation connecting themaster appliance

Check the electric installation connection

A failure of electronic moduleCall an authorized service or if not available inyour area, contact [email protected]

The boiler does not heat up the

cylinder

A failure of cylinder temperature sensoror room thermostate

Call an authorized service or if not availablein your area contact [email protected], replacetemperature sensor or room thermostate

A failure of three-way valve servo Replace servo

A failure of electronic moduleCall an authorized service or if not availablein your area contact [email protected]

Failures

In case, the boiler does not work properly after the above checks and none of the failures is present, contactan authorised service.


K th b il i d l ith t t b t 5 d 350C


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Keep the boiler in a dry place with a temperature between 5 and 350C.

EKCO.L1z/ EKCO.L1Nz boiler 1 pieceFixing screws 2 piecesMagnetic filter for central heating system F-MAG 3/4" 1 piece

Storing

Boiler kit

This appliance is not intendedfor use by persons (includingchildren) with reduced physical,sensory or mental capabilities orlack of experience and knowl- edge, unless they have beengiven supervision or instructionconcerning use of the applianceby a person responsible for theirsafety.

Children should be supervisedto ensure that they do not playwith the appliance.


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Manual Centrala Electrica ekco.l1n487.pdf

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