INSTALLATION AND MAINTENANCE INSTRUCTIONS …

INSTALLATION AND MAINTENANCE INSTRUCTIONSMOS GB 1245-7EVP 270031164 EVP 270

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1

2

3

For Home Owners

General

System descriptionPrinciple of operation 3Abbreviations 3System diagram 3

Front panelFront panel’s upper (visible) part 4The front panel’s lower (concealed) part 5

Room temperatureHeating control system 6Default setting 6Changing the room temperature manually 6Setting of hot water temperature 7

ClockSetting of time 8Programming of clock 9Night reduction 9Night reduction via external contact 9

Maintenance routinesChecking the safety valves 10Control of the heat pump 10Pressure gauge 10

For the Installer

General information for the installerTransport and storage 11Assembly 11Inspection of the installation 11Setting of min/max temperature levels 11Connection 11

Electrical connectionsFolding down the front panel 12Connection 13Temperature limiter 13Power rating as set at the factory 14Max phase current 14Charge pump connection to another heat source 14External indication of main alarm 14Connection of circulation pump 14Connection of flow sensor 14Connecting the outside sensor 15Load monitor 15

Centralised load control/Tariff 16Temperature sensor data 16

DockingGeneral 17EVP 270 docked to F20XX 17Electrical connections F20XX 18Electrical connection EVP 270 18EVP 270 docked to another outdoor air heat pump 20

Commissioning and adjustingPreparations 21Filling 21Venting the heating system 21Start-up and inspection 21Adjustment, charge flow F20XX 21Secondary adjustment 22Draining the heating system 22

Channel descriptionsChannel descriptions 23

Setting of flow temperatureHeating curve offset -2 24Heating curve offset 0 24Heating curve offset +2 24Setting according to graph 24The context of the set temperature and available hot watervolume 24

Dealing with malfunctionsLow temperature or no hot water 25High hot water temperature 25Low room temperature 25High room temperature 25Switch position 25Resetting of miniature circuit breakers 26Control of the heat pump 26Fine-wire fuse 26

Miscellaneous

Electrical circuit diagram

Technical specificationsDimensions and setting-out coordinates 32Component positions 33List of components 34Technical specifications 35Accessories 35Enclosed kit 35

1EVP 270

Table of Contents

GeneralTo get the most out of the indoor module EVP 270 you should read through the section "For Home Owners" in theMounting andMaintenance Instruction. EVP 270 is intended for houses/buildingswithwaterborne heating. A climate-controlled automatic shunt control unit ensures that the indoor module is always working as efficiently as possible.

EVP 270 is a Swedish-made quality product offering long life and reliable operation.

The serial number* (95) must always be stated in all correspondence with NIBE.

089_ _ _ _ _ _ _ _ _ _ _

Installation date

Installation engineers

"Max boiler temp" setting (On delivery: 75ºC)

"Fuse size" setting (On delivery: 16 A)

"Heating curve offset" setting (On delivery: 10)

"Heating curve offset" setting (On delivery: -2)

Make any changes to the default settings here.

Datum__________________________ Sign___________________________

*The serial number is located on the left of the top of the housing.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, orlack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by aperson responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.

Rights to make any design or technical modifications are reserved.

©NIBE 2012.

EVP 2702

For Home Owners

General

System description

Principle of operation

EVP 270 is an electric boiler designed for houses with water-borne heating. The electric boiler consists of a pressure vessel,two immersion heaters and intelligent controls. The vessel’slower part contains a mixing chamber that provides the beststratification and temperature flux when docked to a heatpump.

Water is heated using a finned coil of copper.

The immersion heaters have a max output of 13.5 kW withthe option of setting lower outputs. The factory setting is10.5 kW.

The boiler temperature is variable, which provides economicaloperation and permits connection to high-temperature sys-tems.

The total water volume is 270 litres.

EVP 270 is delivered with a bivalent shunt so that the righttemperature is obtained in the heating system with big sav-

ings. The flow temperature is determined by the currentoutdoor temperature and settings.

AbbreviationsMixer valveBL

Non-return valveBV

Circulation pumpCP

Docking sensorDG

Immersion heaterEB

Expansion vesselEXP

Temperature sensor, flow pipeFS1

Boiler sensorPG

Control boxRC

Bivalent shunt valveSV1

Safety valve, boilerSÄV1

Safety valve water heaterSÄV2

Drain valveTV

Outside sensorUG

System diagram

RC

SÄV 2*

Från dockad enhet

Till dockad enhet

FG1

CP*

BL*

SÄV 1*

EXP*

SV1

UG**

BV**

DG

PG

EP

EP

TV

KV VV

To docked unitFrom a docked unit:

NOTE! This is an outline sketch. Actual installations must beplanned according to applicable standards.

Not supplied with the boiler*

Supplied**

3EVP 270

For Home Owners

System description

Front panel

Front panel’s upper (visible) part

2

1 bar 3

0 4

Pressure gauge Switch Indicator lamps Display screen

Channel selection Heating curve offset

DCBA

E F

Functions visible on the front panelPressure gaugeA

The radiator circuit pressure is displayed here. Gaugegraduation is 0 – 4 bar.

SwitchB

with 3 positions 1 0 - :Normal mode. All control functions connected.1

The indoor module is completely shut down.0

Standby mode. This mode is used in the eventof breakdowns.

Indicator lampsC

Upper lamp“Always day” function selectedLit

Middle lamp“Always night” function selectedLit

Upper and middle lampsClock function selectedLit

Lower lamp

Immersion heaters operatingLit

Parts of the immersion heaterblocked by the load monitoror external control unit.

Flashing

Immersion heaters not operat-ing

Not lit

Display screenD

During normal operation, the boiler temperature is shownhere. The two digits on the left indicate “channel number",and the two on the right the channel’s measured value/set-ting.

Channel selectionE

Use the “Channel select” button to scroll among the displayscreen’s channels to find the value or setting you want.

You can read here for example:Boiler temperature1

Supply temperature2

Outdoor temperature3

Channel 1 is normally always displayed on the display screen.When you scroll through the channels, channel 1 automat-ically returns to the display after a short time. See section“Channel descriptions" on page 23.

When the docking thermostat (94) is active, a red lamp glowsin the channel select button (18).

Heating curve offsetF

Using the "Heating curve offset" knob, you can alter theoffset of the heating curve and thus the room temperature.

EVP 2704

For Home Owners

Front panel

The front panel’s lower (concealed) part

Day

15

12

24

21

618

R

3

9

15

ON OF F

G H I J

KClock

Operating mode indications Operating mode/reduce value Clock control/Increase value Select heating curve

Functions concealed behind the front panelOperating mode indicationsG

The two lamps next to the operating mode button indicatethe selected operating mode.

Topmost lampThe immersion heater is permitted to beconnected in as required

Lit

The immersion heater is disabledNot lit

Lower lampThe circulation pump is operationalLit

The circulation pump is not operating.In this mode, the shunt valve is alsoclosed. The circulation pump is exercisedautomatically twice every 24 hours.

Not lit

Operating mode/ - reduce valueH

When the electric boiler starts, all functions (immersionheaters, circulation pump and heating control system) areon. If the operating mode changes, the change is saved inthe memory so that the electric boiler will restart in the se-lected operating mode in the case of, for example, a powerfailure.

If the "Operating mode/reduce value" button is pushedin once, the circulation pump stops. (It starts up regularlyhowever.) If you press it one more time, the circulation pumpstarts and the immersion heater is blocked.

Pressing again blocks both the circulation pump and immer-sion heater. This mode is used when neither hot water norheating is required. Pressing one more time goes back tothe original mode (immersion heater and circulation pumpoperating).

The "Operating mode/reduce value" button is used toreduce the value on channels 8 and 9.

Clock control/ -increase valueIn

Press multiple times to toggle between the functions:

Always day

Always night

Timer control

Selected function is shown on the display screen.

The "Clock control/increase value" button is used to in-crease the value on channels 8 and 9.

Select heating curveJ

The "Select heating curve" knob is used to set theautomatic heating control (see section "Room temperature"on page 6).

ClockKDay

15

12

24

21

618

R

3

9

15

ON OF F

Used to determine what times night mode will beswitched on. Marking shows “night reduction”.

5EVP 270

For Home Owners

Front panel

Room temperature

Heating control system

The indoor temperature depends on several factors. Duringthe summer season, solar radiation and heat given off bypeople and equipment are sufficient to keep the house warm.During this period, you can turn off the circulation pump(see section "The front panel’s lower (concealed) part", pointH, on page 5).

When it gets colder outside, the heating system must bestarted. The colder its gets, the hotter the radiators need tobe. This adjustment is automatic, however the boiler mustfirst be given the correct default settings (see the section"Default setting").

Day

15

12

24

21

618

R

3

9

15

ON OF F

Default setting

Use the “Select heating curve” knob and the"Heating curve offset" knob for making default settings.

If you do not know what settings to enter, use the basicvalues from the map opposite.

If the required room temperature is not obtained, re-balan-cing may be necessary.

Note! Wait one day between settings so that the temperat-ures have time to stabilise.

Post-balancing adjustment of the default setting.

Cold weather conditions

If the room temperature is too low, turn the “Selectheating curve” knob one step clockwise.

If the room temperature is too high, turn the “Selectheating curve” knob one step anti-clockwise.

Warm weather conditions

If the room temperature is too low, turn the “Heatingcurve offset” knob one step clockwise.

If the room temperature is too high, turn the “Heatingcurve offset” knob one step anti-clockwise.

Changing the room temperature manually

If you want to temporarily or permanently lower or raise theindoor temperature relative to the temperature set previously,

turn the “Heating curve offset” knob anti-clockwise orclockwise, respectively. One mark represents approximatelyone (1) degree change in the room temperature.

NOTE! An increase in the room temperature may be inhibitedby radiator or floor heating thermostats – for this reason theymust be turned up.

EVP 2706

For Home Owners

Room temperature

Setting of hot water temperature

The boiler temperature is set at 50°C.

This normally provides a good combination of savings andcomfort.

If you want to increase the hot water capacity (comfort level),raise the temperature in the upper section of the boiler.

If you want the heat pump to provide an even greater pro-portion of the heating, you should reduce the temperaturein the upper part of the boiler. This reduces the comfort level,but increases savings.

These settings are done in channel 9.

50 55 60 65

1

2

°C

Hot water temp.

High

Comfortlevel

Normal

High NormalSavings

Set temperature boiler sensor channel 9

1. Normal drain flow (8 l/min) 2. Peak drain flow (12 l/min)

7EVP 270

For Home Owners

Room temperature

Clock

Setting of time

NOTESetting required only if you want to use clock control

Resetting of clock

By pressing a thin pin into the hole (R), you can reset theclock and delete all its programmed in data. A reset is gener-ally performed when starting up/commissioning the system,or after a power failure/disconnection.

Setting of time

Press the key.ON/OFF indication on the clock’s LCD willfade.

Holding down the key to step through the hours. Releasethe key when the hour you want is displayed.

Set the minutes by brief short presses of the key.

The day of the week is set by pressing the “Day" key re-peatedly until the day you want is displayed. Wait until theclock’s ON/OFF indicator is lit again, 5 seconds after the lastkey press. When the correct time and date have been pro-grammed in, the clock functions can be programmed (seeProgramming the clock).

Day

15

12

24

21

618

R

3

9

15

ON OF F

Time activation

Blue - Night

Yellow - Day

Time

Time plottingwhen clockfunctionactivated

Reset

Days of the weekMonday-Sunday

Manual operation 15-minute key

Setting of Hours-Minutes

On/Off indication ofrelay status

Day key

EVP 2708

For Home Owners

Clock

Programming of clock

This programming is done to determine what times nightreduction is to be activated. The clock is programmed asfollows:

Press the “Day” key until the day you want it shown inthe display.

Program the time you want the night reduction to startby pressing the keys placed around the clock display. Thenumbers around the display mark out the 24 hours of aday.

One press: Night reduction activated the full hour.

Two presses: Night reduction activated in the first half hour.

Three presses: Night reduction activated in the second halfhour.

Four presses: Night reduction deactivated the full hour.

Select a new day with the “Day” key, and repeat theprevious procedure.

When programming is complete, press the “Day” key onthe actual day.

The chronometer can also be programmed in 15-minute in-tervals.

Begin by selecting the half hour during which you want 15-minute activation.

Press and hold down the same segment key again. In thismode, press the “15” key to select the 15-minute intervalyou want.

The clock can also be adjusted manually (not normally used).This is done as follows:

Press and hold down the key for 3 seconds. The relaywill then switch off and OFF will start to flash.

Press the key and the relay will toggle between offand on while ON/OFF flashes.

To return to clock control, press the key again andhold it down for 3 seconds. ON/OFF will now glow con-stantly.

In the case of a power failure/disconnection, the clock retainsits setting for a couple of days.

Night reduction

This setting is used to change the heating during certainperiods during the day and night.

Night reduction is activated by the clock. The “Clock control”position is the normal position, and is selected using the“Clock”/”Increase value” button.

The programmed on/off times in the clock determine whattimes the flow temperature is to change in order to give achange in the room temperature. ON indicates that nightmode is on. OFF indicates that night mode is off.

Select channel 8, Night reduction using the “Channel” but-ton. To reduce the temperature, reduce the value with the"–" button (concealed behind the upper front access panel).To raise the room temperature, press the "+" button. Thesetting range is -10 to +10. One step gives the equivalent ofa 1 degree change in the room temperature.

NOTE! An increase in the room temperature may be inhibitedby radiator or floor heating thermostats – for this reason theymust be turned up.

If you want to temporarily or more permanently change theroom temperature, besides manually turning the clock on/off,you can use the “Clock” button. This button toggles between“Always day”, “Always night” and “Clock control”. See thesection "Functions on the front panel" on page 4.

Night reduction via external contact

If you want to activate the night reduction via an externalcontact instead of using the clock, you can do so by doingthe following changeover:

13

12External potential-free

contact.

Must bepotential free!

NOTE!

Wires from theCPU card aremoved on theterminal block

9EVP 270

For Home Owners

Clock

Maintenance routinesThe boiler requires some regular maintenance. Please followthe points below.

Checking the safety valves

EVP 270 ,must be provided with two safety valves when in-stalled; one for the heating system and one for the waterheater.

The heating system’s safety valve must be completely tight,but the water heater’s safety valve may occasionally releasesome water after hot water has been used. This is becausethe cold water, which enters the water heater to replace thehot water, expands when heated causing the pressure torise and the safety valve to open.

The safety valves must be checked regularly. Check as fol-lows:

Open the valve.

Check that water flows through the valve.

Close the valve again.

Check the pressure. If the pressure is too low, top up theboiler water.

Control of the heat pump

We recommend regular checks of the heat pump’s status,since disruptions to the normal operation of the heat pumpwill not result in any changes in the perceived comfort level,as immersion heater mode will automatically take over.

Pressure gaugeLEK

Pressure gauge is to show the pressure in the heating system.See section “Commissioning and balancing" on page 21.

In a closed system, the pressure varies with changes in tem-perature in the boiler and heating system – high temperatureswill increase pressure. Do not add water before the pressurehas stabilised at a level lower than the expansion vessel’sinitial pressure (normally 0.5 bar).

In an open system, the pressure depends on the height dif-ference between the expansion vessel and the boiler (forexample, 5 m corresponds to roughly 0.5 bar).

EVP 27010

For Home Owners

Maintenance routines

General information for the installer

Transport and storage

The electric boiler should be transported and stored verticallyin a dry place.

Assembly

The electric boiler is ideally located in a utility room or boilerroom. The unit can be levelled using the adjustable feet.

If pipes are to be laid inside an internal wall that backs ontoa bedroom or living room, do not use clamp rings.

Inspection of the installation

Current regulations require that the heating installation isinspected before it is commissioned. The inspection must becarried out by a suitably qualified person and should bedocumented. The above applies to closed heating systems.The boiler may not be replaced without the installation beinginspected again.

Setting of min/max temperature levels

On delivery, the boiler, and also the finned coil have a setminimum temperature of 50°C. This level is adjustablebetween 40 and 90°C. You set this level on channel 9 usingthe increase/decrease buttons. Where the flow’s calculatedtemperature level is higher than the boiler’s set minimumlevel, the boiler temperature is automatically raised to thecalculated level. The temperature in the finned coil increasesat the same rate as the boiler temperature increases. Withthe help of a mixer valve (not supplied), you can set theoutgoing hot water temperature.

The upper temperature of the boiler can also be limited. Thisis done using the potentiometer (62) on the printed circuitcard(41) that is located behind the internal cover place behindthe front access panel. The temperature level is set in 5 de-gree steps between 60 and 90°C and can be read duringsetting and later controls/maintenance, on channel 16.

Channels 11 to 22 are service channels. These channels be-come accessible by changing the value from 0 to 1 underchannel 10.

When you press the button more times you come to channel11 and the subsequent channels. After around 20 minutesor by changing the value 1 to 0 under channel 10, the controlpanel goes back to displaying only channels 1 to 10.

In some cases, you might need to be able to set upper andlower limits for the flow temperature. You do this using theincrease/decrease buttons under channel 12 for minimumand channel 13 for maximum flow temperatures.

Start and stop of a heat pump (if used) is balanced onchannels 20-22 (see channel descriptions).

Setting of docking thermostat

The docking thermostat default setting is 51° C. To preventoperating disturbances this value may need adjusting, be-cause the outdoor air heat pump produces a high output athigh outdoor temperatures. For F20XX 8 kW, we recommenda setting of 51 °C and for F20XX 10 kW 50 °C.

Connection

Pipes are to be installed in accordance with the applicableheating and hot water standards. Internal support bushesshould be fitted when annealed steel or copper pipe is used.

The shunt is equipped with compression ring couplings.

The overflow pipe form the safety valves is to run to a floordrain so that hot water will not splash out when the valvesare checked or the boiler is vented. The overflow pipe mustslope downwards along its entire length to prevent waterpockets forming and must be frost-proofed. The outlet ofthe overflow pipe should be conspicuous.

The hot water circuit must be fitted with a mixer valve if aboiler temperature over 65°C is permitted in order to preventscalding. The supplied check valve is to be mounted in thecharge circuit to prevent natural circulation.

EVP 270 can be connected to an open or closed expansionvessel.

If the heating system is equipped with an open expansionvessel, the distance between the highest radiator and theexpansion vessel may not be less than 2.5 m.

Min

2,5

m

NOTEThe pipe system must be flushed before the boiler isconnected so that any residual contaminants will not

damage the components.

11EVP 270

For the Installer

General information for the installer

Electrical connections

Folding down the front panel

The front panel folds down by undoing the two screws atthe top of the panel. The panel can then be folded down

into a horizontal position (against stop lugs on either side ofthe front panel).

LE

K

EVP 27012

For the Installer


Connection

NOTEElectrical installation and service must be carried outunder the supervision of a qualified electrician. Electric-al installation and wiring must be carried out in accord-

ance with the stipulations in force.

Disconnect the electric boiler before testing the insulationof the house/building wiring.

NOTEThe switch (8) must not be moved from position -"0"until the boiler has been filled with water. Otherwisethe temperature limiter, thermostat and immersion

heater may be damaged.

The electric boiler is connected to the hanging cable via anisolator switch with a minimum breaking gap of 3 mm. Whenthe building is equipped with an earth-fault breaker theelectric boiler should be equipped with a separate one.

The nominal output is controlled via contactors operated bya microprocessor.

Temperature limiter

The temperature limiter (6) cuts off the power supply to theimmersion heaters if the temperature rises to between 90and 100°C, and can be manually reset by pressing the buttonon the temperature limiter.

NOTEReset the temperature limiter, it may have tripped

during transport.

The automatic heating control system, and circulation pump(16) and its cabling are internally fused with a miniature cir-cuit breaker (MCB) (7) and fine-wire fuse (33) on the relaycard (29).

Resetting the temperature limiter

The temperature limiter (6) is accessible from behind thefront access panel and is located to the left of the panel.

The temperature limiter is reset by firmly pressing in its but-ton.

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13EVP 270

For the Installer


Power rating as set at the factory

The two immersion heaters have a total maximum outputof 13.5 kW. The factory setting is 10.5 kW.

Max phase currentMax loaded phase (A)Immersion heater output

(kW)

11,87.5 position 1

16,110.5 position 2

20,613.5 position 3

You can set different maximum outputs using the "Maxnominal output" (61) on the printed circuit card (41).

Charge pump connection to another heat source

If EVP 270 is docked to F20XX the charge pump must besupplied from the heat pump, F20XX then controls thestarting and stopping of the charge pump.

If EVP 270 is docked to another heat source, the chargepump can be connected to terminal block X11 (23) positions"5" and "6".

6

7

21

9

23

41

Säkring

LEK

X1

Eleffekt

Ute

giv

are

Rum

sgiv

are

Rundsty

rnin

g

tariff

Str

öm

kännare

Max

1

R4

R1 R

2 R3

R5

D4 D

2 D1

D3

C2

1

2

2

3

3

C

A

B

Bör

Är

-

-

-

+

4

5

6

7

8

9

10

2025

35

16

1

1

ACP R7

2

2

3

3

4

4

5

5

41 62 61 14

60

External indication of main alarm


F20XX is equipped with a contactor for external indicationof common alarms. The function becomes active with alltypes of existing alarms. Max load for relay contactor is 250V2A.

Make the connection for external indication of the mainalarm as set out in the figure below:

N

230 V

34

1

X11

2

5

6

11Signal on non-alarmSignals in theevent of alarmsCharge pump

External heatcableN

F20XX

Connection of circulation pump

The circulation pump is connected with a 3-wire cable toterminal block 21, positions 4-6 (max 1A).

3 4 5 61

N

2

LNLL

21

Shunt motor Circulationpump

Connection of flow sensor

On delivery, the flow sensor (89) is fixed to the printed circuitcard (41) The flow sensor must have good contact with themeasuring point to function effectively. Attach the sensorto the flow pipe with aluminium tape and fix it with the cabletie. Insulate with two layers around of heat insulating tape.

EVP 27014

For the Installer


Connecting the outside sensor

The outdoor sensor (15) must be placed in a shaded locationon a wall facing north or north-west where it will not be af-fected by the morning sun, for example. The sensor must beconnected by two-wire to (14) pos "+" and "-" on theprinted circuit card (41).

Cable ducts must be sealed so that they do not cause con-densation which could result in erroneous sensor values.

The minimum cable cross section should be 0.4 mm2 up to50 m, e.g. EKXX or LiYY.

1

2

3

A

B

Bör

-

C

är

+

-

-

15

14

Current sensor

Centralised loadcontrol/Tariff

Room sensor

Outside sensor

Load monitor

The electric boiler EVP 270 is internally equipped with a loadmonitor. The control system must be set for the building’smain fuse so that the load monitor can work correctly. Thisis done using the knob (60), marked “Fuse” on the circuitboard (41), which is positioned behind the middle frontcover. The supplied current sensor (20) is connected to theterminal block’s terminals marked “Current sensor”. TerminalC is the common conductor for the three current sensors.

When the load monitor senses an excess current in any ofphase, the upper immersion heater will step down its outputuntil it can be connected in again.

Cable type: Unscreened LiYY, screened LiYCY.

Cable area: At least 2 x 0.25 mm2 for lengths up to 50m.

1

2

3

A

B

Bör

-

C

är

+

-

-

14 20

Current sensor

Centralised loadcontrol/Tariff

Room sensor

Outside sensor

15EVP 270

For the Installer


Centralised load control/Tariff

Where centralised load control or tariff control is used, thiscan be connected to the terminal block (14) labelled “Cent-ralised load control/Tariff on the printed circuit card (41).

If the lower immersion heater (24) of 4.5 kW is to be discon-nected, a function with potential-free contact is connected(functions with contacts that do not receive voltage fromanother source) between "-" and "B" on terminal block (14).

When the upper immersion heater (1) is to be disconnected,a potential-free contact is connected between “6” and “7”on terminal block (14).

If the entire output is to be disconnected, connect a potential-free contact between "-", "A" and "B" on terminal block(14).

1

2

3

A

B

Bör

-C

är

+

-

-

14

Current sensor

Centralised loadcontrol/

Tariff

Room sensor

Outside sensor

Setpoint

Actual

Temperature sensor dataVoltage (V)Resistance (k )Temperature (°C)

4,78102,35-40

4,7073,51-35

4,6053,44-30

4,4739,29-25

4,3129,20-20

4,1221,93-15

3,9016,62-10

3,6512,17-5

3,389,810

3,097,625

2,805,9710

2,504,7115

2,223,7520

1,953,0025

1,702,4230

1,471,9635

1,271,6040

1,091,3145

0,941,0850

0,700,74660

0,510,52570

EVP 27016

For the Installer


Docking

General

EVP 270 can be installed in several different ways. The requis-ite safety equipment must be installed in accordance withcurrent regulations for all docked options.

EVP 270 may be docked to an outdoor air heat pump withmaximum output of 10 kW.

EVP 270 docked to F20XX

Pipe docking

Connect F20XX flow line to EVP 270's docking connection(75).

A control valve is to be fitted on the return pipe to balancethe charge flow. The supplied check valve is to be mountedin the charge circuit to prevent natural circulation.

Connect heat pump return line to EVP 270's docking connec-tion (76).

LEK

Typ: Fighter 2010-4/8kW

Art.nr. : 089261Tillv.nr. och tillv.år: se separat skylt

Spänning: 400V 3N+PE 50Hz

Märkström (A): 8.4 A

Inställningar av motorskydd: 7 A

Värmebärardel

-Volym:

-Beräkningstryck:

-Provtryck:

-Beräkningstemp:

1.5 l3 bar (0.3 MPa)

3,9 bar (0,39 MPa)

100 °C

Köldmediemängd:

Köldtyp:

Provtryck, kylsystem:

2,2 kgR407C26 bar (2,6 MPa)

Made by NIBE AB, SE-285 21 Markaryd, SWEDENFlow pipe

Return pipe

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76 75

F20XX

RC

F20XX

17EVP 270

For the Installer

Docking

Electrical connections F20XX

EVP 270 controls stop/start of the compressor in F20XX viathe docking thermostat.


Connect as shown in the figure below.

Suitable cable is 4 x 0.22 – 0.25, LiYY or LiYCY.

The charge pump between EVP 270 and F20XX is electricallysupplied from F20XX. This is to prevent frost damage atoutdoor temperatures under 0°C.

Accessories required

The upper immersion heater works to the set temperatureon channel 09. The lower immersion heater is blocked bythe heat pump until the heat pump is stationary.

If the outdoor air temperature drops to a level below the setvalue under channel A7, compressor operation is blocked

and all heating is provide by an external supplementaryheater. This function is also activated when F20XX is withoutpower.

Electrical connection EVP 270

To control EVP 270's immersion heater, a cable must beconnected to the electric boiler's terminal block (14) terminals"-" and "B", tariff/centralised load control. Connect thecable to terminal X201 (stationary NO and COM) inF2020/2025 and terminal X6 in F2026. Suitable cable is 4 x0.22 – 0.25, LiYY or LiYCY. The EVP 270's immersion heatercan also be blocked manually.

When the outdoor temperature drops, the entire heatingrequirement will need to be supplied by EVP 270.

On delivery, the boiler and indirectly also the water heaterhave a set minimum temperature of 50°C. The dockingthermostat’s current value can be read on channel 20.

34

1

X200

2

3

1

2

3

A

B

Bör

-C

är

+

-

-

Ute

giva

reR

umsg

ivar

eRun

dsty

rnin

g/ta

riff

Str

ömkä

nnar

e

21 654

34

56

1

X201

Stillestån d

FIGHTER 2020EVP 270

NO

NC

COM

2

1414

2230

LEK

Pa te n t

HU

MM

EL

2230

14

14

14

30

14

22

Downtime

Current sensor

Centralisedload

control/Tariff

Room sensor

Outside sensor

Terminal block 14 in EVP 270

F2020/F2025EVP 270

Setpoint

Actual

EVP 27018

For the Installer

Docking

EVP 270 with F2026

F2026 EVP 270

56

42

31

78

9

-X6

56

42

31

-X5

1

2

3

A

B

Bör

-

C

är

+

-

-

Utegivare

Rumsgivare

Rundstyrning/

tariff

Strömkännare

321 654

22

14

LEK

Patent

HUMMEL

LEK

22

14

-X6

-X5

19EVP 270

For the Installer

Docking

EVP 270 docked to another outdoor air heatpump

Pipe docking

Connect the heat pump flow line to EVP 270's dockingconnection (75).

A control valve is to be fitted on the return pipe to balancethe charge flow.

The supplied check valve is to be mounted in the charge cir-cuit to prevent natural circulation.

Connect heat pump return line (71) to EVP 270's dockingconnection (76).

LEK

Pa te n t

HU

MM

EL

76 75

14

22

23

Electrical connections EVP 270

EVP 270 controls the starting and stopping of the compressorin the heat pump.


The screw terminal block (22) positions 1-2 close when thetemperature is reached and screw terminal block (22) posi-tions 1-3 open when the temperature is reached.

Lay suitable cable and connect to the heat pump’s controlunit.

When the boiler is docked to the heat pump the lower im-mersion heater must be blocked. A potential free closingcontact is connected to the electric boiler terminal block (14)terminal "-" and "B", tariff/centralised load control. Thepotential free contact must be operated by the heat pumpcontrol system, for example the control signal fro cold outsideair / downtime. The EVP 270's immersion heater can also beblocked manually.

On delivery, the boiler water sensor is set to 50°C. Set theheat pump’s docking temperature to the required value inthe service menu on channel 21. The connection differentialfor the docking temperature is set on channel 22. The currentdocking temperature can be read on channel 20.

If EVP 270 is docked to another heat source, the chargepump can be connected to terminal block X11 (23) positions"5" and "6".

NOTE! The heat pump’s circulation pump is to operating toprevent the formation of ice in the pipes that are outdoors.

1

2

3

A

B

Bör

-C

är

+

-

-

Ute

giva

reR

umsg

ivar

eR

un

dst

yrn

ing

/ta

riff

Str

ömkä

nnar

e

14

22

Kontakt för blocker av nedre elpatro

1 2 3

Till värmepump1 – 2 Sluter vid uppnådd temperatur

1 – 3 Bryter vid uppnådd temperatur

EVP 270

Minireläkort

22

14

Current sensor

Centralisedload

control/Tariff

Room sensor

Outside sensor

Mini relay card

To heat pump

1 - 2 Closes when temperature reached1 - 3 Open when temperature reached

Contact forblocking of

lowerimmersion

heater

EVP 27020

For the Installer

Docking

Commissioning and adjusting

Preparations

Check that switch (8) is in “0” position and that the temper-ature limiter (6) has not tripped (press the button firmly).

Filling

It is best to fill the boiler via a fixed/permanent filling line tothe expansion vessel or a hose in the drain valve.

! WARNING!If filling is via the radiator circuit, the shunt valve mustbe in position 10. Otherwise there is a risk of bursting

one of the radiators.

Venting the heating systemBleed the air from the electric boiler through the safetyvalve and the rest of the heating system through itsventing valves.

Keep topping up and venting until all air has been re-moved and the correct pressure has been obtained.

Start-up and inspection1. Check that there is sufficient water and the system has

been vented.

2. Switch on the safety switch.

3. Check that all incoming phases are powered.

4. Check that the MSB (7) is on.

5. Check that the temperature limiter (6) has not beentripped during transport.

6. Switch on the control switch (8).

7. Check that the values for the boiler temperature, flowtemperature and outdoor temperature are appropriate(channels 1-3).

8. Adjust the slope of the curve and heating curve offsetaccording to the needs of the building (channels 6-7).Continue with the following points if EVP 270 isdocked to a heat pump.

9. Check that the red lamp glows in the Channel selectbutton, as this indicates that the docking thermostat isactive.

10. Follow the commissioning and maintenance instructionsfor the heat pump.

11. Check that that lower immersion heat is not blocked.

12. Balance the charge flow between the heat pump andelectric boiler.

13. Set max return temperature on the heat pump to 50 °C.

14. if EVP 270 is docked to a 10 kW heat pump the stoptemperature must be adjusted down to max 50 °C inchannel 21.

Adjustment, charge flow F20XX

For F20XX-8 kW, the charge flow must be a minimum of0.22 l/s and max 0.3 l/s

For F20XX-10 kW, the charge flow must be a minimum of0.27 l/s and max 0.37 l/s

The charge flow can be balanced using the heat pump’s flowand return pipe temperatures.

The difference between Channel T2 (flow temperature)) andchannel T3 (return temperature) is adjusted using the circu-lation pump and control valve. Adjustment is made whenthe flow temperature is approx. 45 °C and at stable opera-tion, 5 minutes after start-up or 5 minutes after defrost.

The temperature difference shall be as in the diagram below.At outdoor temperatures above 28ºC the flow can be in-

creased by 30 % to obtain a lower ΔT.

30 35

16,0

17,0

18,0

-20 -15 -10 -5 0 5 10 15 20 25

2,0

3,0

4,0

5,0

6,0

7,0

8,0

9,0

10,0

11,0

12,0

13,0

14,0

15,0

Δ T (°C)

(°C)

Adjustment of charge flow

Outdoor temperature

Charge flow is balanced so that it is within the grey area.

21EVP 270

For the Installer


Secondary adjustment

Air is initially released from the hot water and venting maybe necessary. If gurgling sounds can be heard from theelectric boiler, the entire system will require venting. Whenthe system is stable (correct pressure and all air eliminated)the automatic heating control system can be set as required.See the section "Heating control system" on page 6 and"Front panel" on page 4.

Draining the heating system

The boiler/radiator water can be drained off through thedrain valve (51) using an R15 (1/2") hose coupling. Remove

the cap (80) from the valve. Now screw on the hose couplingand open the drain valve.

The heating system’s safety valve is set to open to allow airinto the system.

NOTEBefore the boiler/radiator water is drained out, the

voltage feed must be stopped.

LEK

Pa te n t

HU

MM

EL

8

6

80

51

EVP 27022

For the Installer


Channel descriptions


01 Boiler temperature

Current value

02 Flow temperature

Current value

03 Outdoor temperature

Current value

04 Room sensor

Current value. Displays --, when no room temperature sensoris connected

05 Set point, Room sensor

Set point. Displays --, when no room sensor is connected

06 Curve slope ( “Select heating curve”)

Default setting: 10

07 Offset ( “Heating curve offset”)

Default setting: -2

08 Night reduction

Default setting: 0°C

Setting range: -10 – 10°C

09 Hot water temperature


Setting range: 40 – 90°C

10 Service channel

Increase the value from 0 to 1 using the “+" button

Then press the Channel select button.

Service channels

11 Flow temperature

Set point

12 Min flow



13 Max flow



14 Operating mode

1=The circulation pump is operating. Upper immersionheater is connected in as required

2 = Circulation pump blocked

3 = Upper immersion heater blocked

4 = Circulation pump and upper immersion heater blocked

If the “Operating mode/Reduce value" button is pressed,the 2-hour delay before the immersion heaters start is can-celled.

15 Current/Max immersion heater degree (upper)

Adjust the potentiometer Power output (61)

Default setting: Position 2

1=3 kW

2=6 kW

3=9 kW

16 Max setting for boiler water

Adjust the potentiometer R7 (62)



17 Fuse size

Adjust the potentiometer Fuse (60)

Default setting: 16 A

Setting range: 16 – 35 A

18 Current measurement

Phase loading

19 The clock’s status

-- Normal

A- Clock active

-A Centralised load control active

AA Clock and centralised load control active

20 Docking thermostat

Current value (docking temperature)

21 Thermostat for docked external units


Setting range: 40 -– 90°C

22 Connection differential for docking thermostat



When the docking thermostat is active (is invoking the extern-al unit) the red LED glows under the “Channel select" button.

23EVP 270

For the Installer


Setting of flow temperature

Heating curve offset -2

15 14 13 12 11 10

9

8

7

6

5

4

3

2

1

- 40

UTETEMPERATUR

- 10010

- 5

+ 5

30

40

50

60

70

FR

AM

LED

NIN

GS

TE

MP

ER

AT

UR

- 20 - 30

FÖRSKJUTNINGVÄRMEKURVA (-2)

VÄRMEKURVA

Heating curve offset 0

30

40

50

60

70

FR

AM

LED

NIN

GS

TE

MP

ER

AT

UR

- 40

UTETEMPERATUR

- 10010 - 20 - 30

15 14 13 12 11 10 9

8

7

6

5

4

3

2

1

VÄRMEKURVA

- 5

+ 5

FÖRSKJUTNINGVÄRMEKURVA (0)

Heating curve offset +2

1514 13 12 11 108

7

6

5

4

3

2

1

- 40

UTETEMPERATUR

- 10010

- 5

+ 5

30

40

50

60

70

FR

AM

LED

NIN

GS

TE

MP

ER

AT

UR

- 20 - 30

FÖRSKJUTNINGVÄRMEKURVA (+2)

9

VÄRMEKURVA

Setting according to graph

EVP 270 is equipped with an outside controlled heatingcontrol system. This means the flow temperature is regulatedin relation to the current outdoor temperature.

The relationships between outdoor temperature and the flowtemperature is set using the “Select heating curve” and“Heating curve offset” knobs.

The diagram is based on the dimensioned outdoor temperat-ure in the area and the dimensioned supply temperature ofthe heating system. When these two values ”meet”, theheating control's curve coefficient can be read.

“Heating curve offset” is then set. A suitable value for under-floor heating is -1 and for radiator systems -2.

See also section "Room temperature" on page 6.

The context of the set temperature and avail-able hot water volume

Tapp

vatt

envo

lym

40

C

1

2

0

100

200

300

400

500

50 55 60 65°C

liter

Tap water volume 40ºC

High

Comfortlevel

Normal

1. Normal tap flow (8 l/min) 2. Peak tap flow (12 l/min)

Set temperature boiler sensor channel 9

NormalHigh Savings

Since the water is heated in the finned loop at the same timeas it is used, the volume of hot water is dependent on theflow through the coil. This means that a greater volume ofhot water can be drawn off at a low flow rate. If a high flowrate of hot water is required, the boiler temperature can beincreased on channel 9. The available volume of hot watercan be read from the graph.

EVP 27024

For the Installer

Setting of flow temperature

Dealing with malfunctionsIn the event of a malfunction or disruption to normal operation, first check the points below:

Low temperature or no hot waterLarge amounts of hot water were used.

Circuit or main MCB tripped.

Possible earth circuit-breaker tripped.

Mixer valve set too low.

Switch (8) set to “0”.

Tripped Miniature circuit-breaker (7) or Fine-wire fuse(35). See section ”Resetting of miniature circuit breakers”on page 26.

Tripped temperature limiter (6). (Contact service.)

Incorrect operating mode on operating mode button (25).

Closed or throttled filler valve for the hot water heater.

The load monitor or some external control unit may haveblocked the power output.

Hot water temperature on channel 9 is set too low.

High hot water temperatureMixer valve set too high.

Low room temperatureCircuit or main MCB tripped.

Possible earth circuit-breaker tripped.

Tripped Miniature circuit-breaker (7) or Fine-wire fuse(35). See section ”Resetting of miniature circuit breakers”on page 26.

Tripped temperature limiter (6). (Contact service.)

Automatic heating control system settings incorrect (40).

The clock has been incorrectly set so that night mode isrunning during the day.

Circulation pump stopped.

Air in boiler or system.

Too low pressure in the expansion vessel is indicated bytoo low pressure on the pressure gauge (42).

The load monitor or some external control unit may haveblocked the power output.

High room temperatureAutomatic heating control system settings not correct.

Switch position

LEK

In "Standby" the boiler’s electronic control system isdisconnected and the display screen will be off.

The immersion heaters are controlled by a separate thermo-stat. Available output in standby mode is 6 kW.

The automatic heating control system is not operating, somanual shunt operation is required. This is done by pressingin the shunt motor knob and then turning it to the requiredposition. The maximum temperature on the standby modethermostat must be set during installation, taking into ac-count the heating system’s maximum permitted operatingtemperature.

NOTEWhen returning to normal mode, do not forget to resetthe shunt knob to its original position by turning the

knob all the way out.

NOTEThe product's serial number should always be stated

with all correspondence with NIBE.

_ _ _ _ _ _ _ _ _ _ _ _ _ _

If the breakdown cannot be rectified by means of the above, an installation engineer should be called.

If necessary, set the switch to “standby" (manual shunt operation required).

25EVP 270

For the Installer

Dealing with malfunctions

Resetting of miniature circuit breakers

LEK

Pa te n t

HU

MM

EL

7

The MCB (7) is accessible from behind the front access paneland is located to the left of the panel.

Normal mode for the MCB is “1” (up).

Control of the heat pump


F20XX is equipped with a contactor for external indicationof common alarms. The function becomes active with alltypes of existing alarms. Max load for relay contactor is 250V2A.

Fine-wire fuse

The automatic heating control system, circulation pump (16)and its cabling, are internally fuse protected with a miniaturecircuit breaker (7) as well as a fine-wire fuse (35) on the relaycard (29).

The fine-wire fuse may only be replaced after the fault hasbeen repaired/fixed.

Glass tube fuse 2.5 A, 5 x 20 mm.

29

35

NOTEWork behind panels secured by screws may only be

carried out by a qualified installation engineer.

EVP 27026

Miscellaneous

Dealing with malfunctions


27EVP 270

Miscellaneous


EVP 27028

Miscellaneous


29EVP 270

Miscellaneous


EVP 27030

Miscellaneous


31EVP 270

Miscellaneous


Technical specifications

Dimensions and setting-out coordinates

1560

1420

510

370

230

55

600700

150

11038 190

260

190

2

1 bar 3

0 4

Kabelgenomföring el

Exp R 20 (utv)

Framledning Ø 22

Returledning Ø 22

Kabelgenomföring

Till annan värmekällaR 20 (utv)

Kabelgenomföring

Från annan värmekällaR 20 (utv)

KV Ø 22

VV Ø 22

To another heat source R 20(male)

Cable grommet

CW Ø 22

HW Ø 22

From another heat source R 20(male)

Exp R 20 (male)

Flow pipe Ø 22

Return pipe Ø 22

Cable grommet

Cable holes (electric)

Measuring principle

Klämring Cu-rörCompression ring Cu pipe

EVP 27032

Miscellaneous


Component positions

LEK

Pa te n t

HU

MM

EL

32 4031

99

30

38

18

37

39

25

55

56

12

41

62

14

61

22

8

42

3

6

7

9

23

1

88

94

80

51

117

21

24

81

73

74

7511 76

71

70

43

19

89

95

78

LE

K

12

34

13

106769338

3

6 7 35 29

33EVP 270

Miscellaneous


List of componentsImmersion heater 9 kW1

Operating thermostat, backup heating3

Temperature limiter6

Miniature circuit-breaker7

Switch, positions 1 - 0 -8

Terminal block, power supply9

Contactor, 6.0 kW10

Connection cable, power supply11

Week chronometer, for "Clock"12

Terminal block – external activation13

Terminal block, external signals14

Outside sensor15

“Channel select” button18

Shunt motor with hand wheel19

Current sensor, load monitor20

Terminal block, motor shunt and circulation pump21

Connection block, docking, -X22, start/stop22

Connection block, charge pump/external units, -X1123

Immersion heater, lower, 4.5 kW24

Button, “Operating mode” and “Reduce”25

Relay card29

Control lamp, “Always day”30

Control lamp, “Always night”31

Control lamp, “Immersion heaters in operation”32

Fine-wire fuse relay card T1 A, 5x2033

Microprocessor card34

Fine-wire fuse relay card T2.5 AH, 5x2035

Knob, “Select heating curve"37

Knob, “Offset heating curve”38

Buttons “Clock” and “Inc”39

The display screen with underlying control card40

Printed circuit card, load monitor, external sensor andoutdoor sensor

41

Pressure gauge, boiler42

Shunt valve43

Drain valve, heating system51

Control lamp, “Immersion heater permitted”55

Control lamp, “Circulation pump”56

Knob, setting “Fuse”60

Knob - setting “Max power output”61

Knob, setting of “Max boiler temperature”62

Contactor, 3.0 kW67

Contactor, 4.5 kW69

Connection

Compression ring Ø 22 mmFlow, heating system70

Compression ring Ø 22 mmReturn pipe, heating system71

Compression ring Ø 22 mmCold water connection73

Compression ring Ø 22 mmHot water connection74

Ø 28 mmDocking point, incoming from another heat source75

Ø 28 mmDocking point, outgoing to another heat source76

Cable entry, sensor78

R 15 (male)Drain connection, heating system80

R 20 (male)Expansion vessel connection81

Submerged pipe, extra docking point (Ø 10.5mm, length 160mm)86

Temperature sensor, immersion heater mode (upper)88

Temperature sensor, flow pipe heating system89

Temperature sensor, heat pump / immersion heater (lower)94

Sign, serial number95

Sign, pipe connections96

Enclosed kit99

EVP 27034

Miscellaneous



IP 21

1560 mmHeight (excl. base: 15 – 40 mm)

1640 mmRequired ceiling height

600 mmWidth

700 mmDepth

165 kgWeight

270 litresVolume total

267 litresVolume, vessel

3 litresVolume loop

400 V 3 NAC 50HzSupply voltage

10 kWMaximum heat pump output

13.5 kW (Output on delivery 10.5 kW)Output immersion heater

IP 21Enclosure class

1.0 MPa (10 bar)Design pressure, hot water heater

0.9 MPa (9 bar)Cut-off pressure, hot water heater

0.25 MPa (2.5 bar)Max permitted pressure in the boiler

0.25 MPa (2.5 bar)Cut-off pressure in the boiler

069 016Article no.

AccessoriesAuxiliary relayRoom sensor RG 10

Docking to existing installation that is lacking functions with poten-tial-free contacts.

Part. no: 018433

Control voltage: 230 V

Part. no: 418867

LE

K

Enclosed kitAccessory: flow sensorCheck valveOutdoor sensorCurrent sensor

LE

K

LE

K

Cable ties

Aluminium tape

Insulation tape

LE

K

LEK

LEK

LEK

35EVP 270

Miscellaneous


EVP 27036

PL

NL

FI

DK

DE

CZ

NIBE Energy Systems OY, Juurakkotie 3, 01510 Vantaa

3C Broom Business Park, Bridge Way, Chesterfield S41 9QG

Puh: 09-274 697 0 Fax: 09-274 697 40 E-mail: [email protected] www.nibe.fi

FRAIT France, 10 rue des Moines, 67500 HaguenauTel : 03 88 06 24 10 Fax : 03 88 06 90 15 E-mail: [email protected] www.nibe.fr

NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKTel: 085 662 84 90 Fax: 085 662 84 14 E-mail: [email protected] www.biawar.com.pl

RU © "EVAN" 17, per. Boynovskiy, Nizhny NovgorodTel./fax +7 831 419 57 06 E-mail: [email protected] www.nibe-evan.ru

NIBE Energietechniek B.V., Postbus 2, NL-4797 ZG WILLEMSTAD (NB)Tel: 0168 477722 Fax: 0168 476998 E-mail: [email protected] www.nibenl.nl

Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 VidebækTel: 97 17 20 33 Fax: 97 17 29 33 E-mail: [email protected] www.volundvt.dk

NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleTel: 05141/7546-0 Fax: 05141/7546-99 E-mail: [email protected] www.nibe.de

CHNIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 FlurlingenTel: (52) 647 00 30 Fax: (52) 647 00 31 E-mail: [email protected] www.nibe.ch

ATKNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingTel: +43 (0)7662 8963-0 Fax: +43 (0)7662 8963-44 E-mail: [email protected] www.knv.at

NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydTel: +46-(0)433-73 000 Fax: +46-(0)433-73 190 E-mail: [email protected] www.nibe.eu

GBNIBE Energy Systems Ltd,Tel: 0845 095 1200 Fax: 0845 095 1201 E-mail: [email protected] www.nibe.co.uk

NOABK AS , Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 OsloTel. sentralbord: +47 23 17 05 20 E-mail: [email protected] www.nibeenergysystems.no

Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad JizerouTel: +420 326 373 801 Fax: +420 326 373 803 E-mail: [email protected] www.nibe.cz

Documents

INSTALLATION AND MAINTENANCE INSTRUCTIONS …