Nibe VVM 500 User manual

Service manual
APH
NIBE™ VVM 500
Indoor module
SEM GB 1411-1
M11495

Table of Contents
1 Important information 2
Document information 2
Safety information 2
2 Indoor module's design 4
3 System description 6
Principle of operation 6
System diagram 7
4 Current circuit 8
Load monitor 8
5 Component description 9
Components 9
Sensors 10
Electronics 11
External connection options 12
6 Troubleshooting 13
Alarm list 13
Troubleshooting guide 18
Function check, components 23
7 Component replacement 25
Basic 25
Main components 28
Circuit board and electronics 33
8 Technical data 36
Electrical circuit diagram, 3 x 400V 36
Dimensions and setting-out coordinates 41
Technical specifications 42
Hot water capacity 43
Item register 44
1Table of Contents |NIBE™ VVM 500

Document information
This technical manual is a complement to the Installer
handbook for VVM 500, containing:
႑Component description.
႑Information to facilitate fault-tracing.
႑Instructions for replacing components.
႑Wiring diagram.
႑Supplementary technical information.
The document applies to VVM500 with software ver-
sions up to and including week 3204.
The heat pump software version can be found in the
info menu (menu 3.1).
Safety information
This manual describes installation and service proced-
ures for implementation by specialists.
This appliance can be used by children
aged from 8 years and above and per-
sons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning
use of the appliance in a safe way and
understand the hazards involved. Chil-
dren shall not play with the appliance.
Cleaning and user maintenance shall
not be made by children without super-
vision.
Rights to make any design or technical
modifications are reserved.
©NIBE 2014.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when main-
taining your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it
based on relevant EU directives. The CE mark is obligat-
ory for most products sold in the EU, regardless where
they are made.
Serial number
The serial number can be found at the bottom right of
the front cover and in the info menu (menu 3.1).
6HULDO QXPEHU
Caution
Always give the product's serial number (14
digits) when reporting a fault.
NIBE™ VVM 500Chapter 1 | Important information2
1 Important information

Contact information
KNV Energietechnik GmbH, Gahberggasse 11, 4861 SchörflingAT
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.knv.at
NIBE Wärmetechnik AG, Winterthurerstrasse 710, CH-8247 FlurlingenCH
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.ch
Druzstevni zavody Drazice s.r.o, Drazice 69, CZ - 294 71 Benatky nad JizerouCZ
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.cz
NIBE Systemtechnik GmbH, Am Reiherpfahl 3, 29223 CelleDE
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.de
Vølund Varmeteknik A/S, Member of the Nibe Group, Brogårdsvej 7, 6920 VidebækDK
Tel: [phone] Fax: [phone] E-mail: [email protected] www.volundvt.dk
NIBE Energy Systems OY, Juurakkotie 3, 01510 VantaaFI
Puh: 09-274 697 0 Fax: [phone] E-mail: inf[email protected] www.nibe.fi
AIT France, 10 rue des Moines, 67000 HaguenauFR
Tel : [phone] Fax : [phone] E-mail: [email protected] www.nibe.fr
NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QGGB
Tel: [phone] Fax: [phone] E-mail: [email protected].uk www.nibe.co.uk
NIBE Energietechniek B.V., Postbus 634, NL 4900 AP OosterhoutNL
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibenl.nl
ABK AS, Brobekkveien 80, 0582 Oslo, Postadresse: Postboks 64 Vollebekk, 0516 OsloNO
Tel. sentralbord: [phone] E-mail: [email protected] www.nibeenergysystems.no
NIBE-BIAWAR Sp. z o. o. Aleja Jana Pawła II 57, 15-703 BIAŁYSTOKPL
Tel: [phone] Fax: [phone] E-mail: [e-mail] www.biawar.com.pl
© "EVAN" 17, per. Boynovskiy, Nizhny NovgorodRU
Tel./fax [phone] E-mail: [email protected] www.nibe-evan.ru
NIBE AB Sweden, Box 14, Hannabadsvägen 5, SE-285 21 MarkarydSE
Tel: [phone] Fax: [phone] E-mail: [email protected] www.nibe.se
For countries not mention in this list, please contact Nibe Sweden or check www.nibe.eu for more information.
3Chapter 1 | Important informationNIBE™ VVM 500

VVM 500
APH
VVM 500
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NIBE™ VVM 500Chapter 2 | Indoor module's design4
2 Indoor module's design

Pipe connections
Connection, heating medium flow lineXL1
Connection, heating medium return lineXL2
Connection, cold waterXL3
Connection, hot waterXL4
Connection, docking in heating mediumXL8
Connection, docking out heating mediumXL9
Connection, solar system flow lineXL13
Connection, solar system return lineXL14
Connection, docking in high tempXL18
Connection, docking out high tempXL19
Connection, docking poolXL39
HVAC components
Expansion tank (connection)CM1
Circulation pumpGP1
Charge pumpGP12
Drain valve, water heaterQM1
Venting, climate systemQM20
Shuttle valve, climate system/water heater, flow
line
QN10
Shunt valveQN11
Shuttle valve, climate system/water heater, re-
turn line
QN35
Sensors etc.
Temperature sensors, heating medium flowBT2
Temperature sensor, heating medium returnBT3
Temperature sensor, hot water, controlBT6
Temperature sensor, hot water, displayBT7
Temperature sensor, solar coilBT54
Temperature sensor, heating medium supply
after immersion heater
BT63
Electrical components
Immersion heater cardAA 1
Base cardAA 2
Input circuit boardAA 3
Display unitAA 4
AA4-XJ3 USB socket
AA4-XJ4 Service socket
Extra relay circuit boardAA 7
Immersion heaterEB 1
Miniature circuit-breakerFA 1
Temperature limiterFD 1
SwitchSF 1
Miscellaneous
Rating platePF 1
Serial number platePF 3
Cable glandUB1
Cable glandUB2
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
5Chapter 2 | Indoor module's designNIBE™ VVM 500

Principle of operation
XL8 XL9 CM1 XL3 XL2
XL1XL4BT7XL39
BT2
GP1
BT3
GP12
QN10
QN35
QN11
BT6
BT54
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List of components
Pipe connections
Connection, heating medium flow lineXL1
Connection, heating medium return lineXL2
Connection, cold waterXL3
Connection, hot waterXL4
Connection, docking in heating mediumXL8
Connection, docking out heating mediumXL9
Connection, docking poolXL39
HVAC components
Expansion tank (connection)CM1
Circulation pumpGP1
Charge pumpGP12
Shuttle valve, climate system/water heater, flow
line
QN10
Shunt valveQN11
Shuttle valve, climate system/water heater, re-
turn line
QN35
Sensors
Temperature sensors, heating medium flowBT2
Temperature sensors, heating medium returnBT3
Temperature sensor, hot water, controlBT6
Temperature sensor, hot water, displayBT7
Temperature sensor, solar coilBT54
NIBE™ VVM 500Chapter 3 | System description6
3 System description

System diagram
-FL2
-CM1
-EB15
-EP30
-EP30-BT53
-EP8
-AA25
-CM5
-GP4
-QM45
-RM3
-QM43
-QM44
T P
-FL4
-RM4 T
-GP30
-FL1
-QM40-RM1
-GP20
-BT3
-BT2
-QN25
-EP21
-AA25
-GP9
-BT52
-EM1
-AA25
-EM1
-GP15
-EB101
-GP9 -BT51 -HQ4
-EP5
-AA25
-CL11
-CL11-QN19
Climate systemEP 21Accessory cardAA 5
Solar kit SCA 30EP 30Control unitAA 25
Safety valve, climate systemFL 2Temperature sensors, heating medium flowBT 2
Safety valve, solarFL 4Temperature sensors, heating medium returnBT 3
Circulation pump, solarGP 4Temperature sensor, poolBT 51
Circulation pump, poolGP 9Temperature sensor, boilerBT 52
Circulation pump, external heat sourceGP 15Temperature sensor, solar panelBT 53
Circulation pumpGP 20Pool kit POOL 500CL 11
Pump station SPS 10, SPS 20GP 30Expansion vessel, heating mediumCM 1
Particle filterHQ 4Expansion vessel, solarCM 5
Shut-off valveQM 4XVVM 500EB 15
Shunt valveQN 11F20XX/F2300EB 100
Three way valve, poolQN 19Oil, gas, or electric boilerEM 1
Non-return valveRM XExchanger, poolEP 5
Solar panelEP 8
7Chapter 3 | System descriptionNIBE™ VVM 500

Load monitor
Currents sensors are connected on AA3-X4:1-4.
Function:
႑If any of the internal phases exceed the set value and
the phase sequence is not detected, the power step
disconnects from one of the internal phases. Because
the phase sequence is not detected this can mean
that the incorrect phase sequence is disconnected,
so that the output is still too high. The heat pump
continues by disconnecting another phase, until the
current does not exceed the set value. If the current
still exceeds the set value when all internal phases
are disconnected, the same process is performed for
the external additional heat, if such exists and is set
to step controlled additional heat
NOTE
Do not disconnect the external additional
heat if it is set to give additional heat in
one step.
.
႑If the phase sequence is detected the electrical out-
put is disconnected in the phase that exceeds the set
value. This will also handle any external additional
heat.
႑If disconnecting the phases does not work, the heat
pump will finally disengage.
႑Reconnection occurs when the current has fallen to
a value low enough to permit reconnection.
NOTE
VVM 500 must be filled with water before the
phase sequence is detected.
For the heat pump to disconnect the electrical output
in the correct phase, the phase sequence must have
been detected in the installation. In the menu 5.1.12
the phase sequence must be detected afterwards. An
unsuccessful detection may be due to the current
sensors not being correctly connected or that other
electrical equipment started or stopped during detec-
tion.
Factory settingNameMenu
16Afuse size5.1.12
detect phase order
NIBE™ VVM 500Chapter 4 | Current circuit8
4 Current circuit

Components
DescriptionComponent
White coil (2 kW) resistance 27 ohmImmersion heater
(EB1) Red coil (3 kW) resistance 55 ohm
Brown coil (1 kW) resistance 55 ohm
Black coil (0.5 kW), resistance 110 ohm
Actuator motor: 7 VA, 230/24 VAC, 50 Hz, IP 40. Running time approx 8 sec.Reversing valve
(QN10, QN35) Max. operating pressure: 1.0 MPa
Operating temperature:5-80°C(90°Cbriefly)
56 56 Ø28
30
54
106
142
Ø28
E6PWM7-15/130G NIBE STRONGHeating medium
pump (GP1) Control signal: PWM 0-10 V DC (max-min speed)
and 140,2 ± 3
112,2 ± 2
130
ISO 228/1-G1
Charge pump (GP12)
9Chapter 5 | Component descriptionNIBE™ VVM 500
5 Component description

Sensors
Data temperature sensor
Temperature sensor data
Voltage (VDC)Resistance (kOhm)Temperature (°C)
3.256351.0-40
3.240251.6-35
3.218182.5-30
3.189133.8-25
3.15099.22-20
3.10574.32-15
3.04756.20-10
2.97642.89-5
2.88933.020
2.78925.615
2.67320.0210
2.54115.7715
2.39912.5120
2.24510.0025
2.0838.04530
1.9166.51435
1.7525.30640
1.5874.34845
1.4263.58350
1.2782.96855
1.1362.46760
1.0072.06865
0.8911.73970
0.7851.46975
0.6911.24680
0.6071.06185
0.5330.90890
0.4690.77995
0.4140.672100
0.2500.380120
0.1200.180150
NIBE™ VVM 500Chapter 5 | Component description10

Electronics
Immersion heater card (AA1)
IndicationLED
A steady light means that the relevant
relay is engaged.
K1 - K9: Or-
ange
FunctionOutput
Supply L1K1
Supply L2K2
Supply L3K3
Immersion heater 2 kWK4
No functionK5
Immersion heater 2 kWK6
Immersion heater 3 kW on K9K7
Immersion heater 2 kWK8
Immersion heater 1/3 kWK9
Base card (AA2)
IndicationLED
A steady light means that 12 V is OK.Power:
Green
Flashing once/sec. Indicates that the
processor is OK.
Run: Green
Flashes irregularly during communication.Com: Green
Continuous light during active output.PWM1: Or-
ange
Continuous light during active output.PWM2: Or-
ange
A steady light means that the relevant
relay is engaged.
K1 - K4: Or-
ange
FunctionOutput
Control signal HM pump (GP1)PWM1
Control signal charge pump (GP12).PWM2
Reversing valve (QN10).K1
Charge pump (GP12).K2
Circ-pump (GP1).K3
No function.K4
Input circuit board (AA3)
FunctionInputs
Current sensor input (GND).X4-1
Current sensor input (BE1).X4-2
Current sensor input (BE2).X4-3
Current sensor input (BE3).X4-4
Outdoor sensor input (BT1).X6:1- 2
Room sensor input (BT50).X6:3-4
AUX1X6:9-10
AUX2X6:11-12
AUX3X6:13-14
AUX4X6:15-16
AUX5X6:17-18
FunctionOutput
Potential free relay CommonK1X7:1
Potential free relay NOK1X7:2
Potential free relay NCK1X7:3
Display unit (AA4)
The display unit consists of:
႑a colour screen where all information is displayed.
႑a status lamp.
႑navigation buttons (OK button, Back button and
Control knob).
႑a USB socket.
႑a service socket.
FunctionStatus lamp
Normal functionLights green
Emergency mode activatedLights yellow
Alarm trippedLights red
11Chapter 5 | Component descriptionNIBE™ VVM 500

Extra relay circuit board (AA7)
IndicationLED
A steady light means that the relevant
relay is engaged.
K1 - K3: Or-
ange
FunctionOutput
Shunt valve close (QN11)K1
Shunt valve open (QN11)K2
Reversing valve (QN35)K3
Add. heat only
Maximum connectable output is limited by settings in
menus 5.1.12
Heating mode
The number of connected steps is controlled by the
degree minute counter. Max connection 1 step/min.
Hot water operation
After shifting to hot water charging the additional heat
output is stepped up to max permitted output at 1
step/min.
External connection options
AUX inputs
There are 5 x external inputs with selectable function.
Connected on AA3-X6:9-18.
The selectable functions are activated in menu 5.4.
Selectable functions that are active when the input is
connected:
႑Block additional heat.
႑Block heating.
႑Activate ”Temporary lux”.
႑External adjustment.
႑Block compressor.
႑Tariff blocking
AUX outputs
The selectable functions on the AUX output AA3 -X7
(max 2 A) are activated in menu 5.4:
႑Alarm output.
႑Activation of pump for hot water circulation (GP11).
Operating settings are made in menu 2.9.2.
႑Activation of external heating medium pump (GP10).
႑External, reversing valve for hot water.
NIBE™ VVM 500Chapter 5 | Component description12

Alarm list
A-alarm
In event of an A alarm the red lamp on the front lights and an alarm icon is displayed. First go through the suggested
actions shown in the display.
May be due toHeat pump action.CauseAlarm text on
the display
Alarm
no.
See fault-tracing schedule page
18.
Calculated flow temperature is
set to min supply line (menu
1.9.3).
Sensor not connected/defect-
ive
(outdoor sensor)
Sensor fault BT11
See fault-tracing schedule page
19.
Uses BT3 if available.
If BT3 is not available, BT63 is
used.
Sensor not connected/defect-
ive
(heating medium supply)
Sensor fault BT22
See fault-tracing schedule page
19.
No actionSensor not connected/defect-
ive
Sensor fault BT33
(heating medium return)
See fault-tracing schedule page
19.
Uses BT54Sensor not connected/defect-
ive
Sensor fault BT66
(hot water, controlling)
See fault-tracing schedule page
19.
Blocks internal electrical addi-
tion.
Sensor not connected/defect-
ive
Sensor fault
BT63
31
See fault-tracing schedule page
20.
Switches off solar function.Sensor not connected/defect-
ive
Sensor fault
EP30 - BT53
33
(solar panel)
See fault-tracing schedule page
20.
Switches off solar function.Sensor not connected/defect-
ive
Sensor fault
EP30 - BT54
34
(solar coil)
See fault-tracing schedule page
20.
Shunt closes. Burner stops.Sensor not connected/defect-
ive
Sensor fault
EM1 - BT52
35
(boiler)
See fault-tracing schedule page
20.
Controls the return sensor
(EP21-BT3)
Sensor not connected/defect-
ive
Sensor fault
EP21 - BT2
36
(supply temperature sensor,
extra climate system 1)
See fault-tracing schedule page
20.
Controls the return sensor
(EP22-BT3)
Sensor not connected/defect-
ive
Sensor fault
EP22 - BT2
37
(supply temperature sensor,
extra climate system 2)
See fault-tracing schedule page
20.
Controls the return sensor
(EP23-BT3)
Sensor not connected/defect-
ive
Sensor fault
EP23- BT2
38
(supply temperature sensor,
extra climate system 3)
See fault-tracing schedule page
18.
Compressor (EB101) blocked.Fuses on the soft-start card
(AA10) are blown.
Fault in the soft-
start card fuses
EB101
44
13Chapter 6 | TroubleshootingNIBE™ VVM 500
6 Troubleshooting

May be due toHeat pump action.CauseAlarm text on
the display
Alarm
no.
See fault-tracing schedule on
page 21.
Blocking the relevant com-
pressor. Calculated flow temper-
ature is set to min supply line.
Communication with the in-
put card missing for 60 secs.
Communication
fault with PCA
input EB15
70
See fault-tracing schedule on
page 22.
Compressor (EB101) blocked.Communication with the base
card missing for 15 secs.
Communication
fault with PCA
base-AA2
71
- Check the communication
cables.
Accessory is blocked.Communication with the ac-
cessory card missing for 15
secs.
Existing commu-
nication fault
with ”access-
ory".
73 -
95
- Check settings on the
dipswitch.
- Check the communication
cables.
Accessory is blocked.Communication with room
unit zone 1-4 missing for 60
secs.
Existing commu-
nication fault
with ”room
unit".
96 -
99
- Check the communication
cables.
Switches off step controlled
additional heat.
Communication with the ac-
cessory card missing for 15
secs.
Communication
fault ACC EB1.
208
- Check settings on the
dipswitch.
See relevant manual.Compressor blocked.See relevant manual.High pressure
alarm.
220
See relevant manual.Compressor blocked.See relevant manual.Low pressure
alarm.
221
See relevant manual.Compressor blocked.See relevant manual.Motor protec-
tion alarm.
222
See relevant manual.Compressor blocked.See relevant manual.Sensor fault.223
See relevant manual.Compressor blocked.See relevant manual.Supply/return
line.
225
See relevant manual.Compressor blocked.See relevant manual.Sensor fault.227
See relevant manual.Compressor blocked.See relevant manual.Defrosting fault.228
See relevant manual.Compressor blocked.See relevant manual.
Short operating
time.
229
See relevant manual.Compressor blocked.See relevant manual.Hot gas alarm.230
See relevant manual.Compressor blocked.See relevant manual.Phase sequence
fault.
231
See relevant manual.Compressor blocked.See relevant manual.Low evapora-
tion.
232
See IHB SMS40 for fault tracing.Accessory is blocked.Communication with the ac-
cessory card missing for 15
secs.
Communication
fault ACC
SMS40.
250
See IHB Modbus40 for fault
tracing.
Accessory is blocked.Communication with the ac-
cessory card missing for 15
secs.
Communication
fault ACC Mod-
bus40.
251
NIBE™ VVM 500Chapter 6 | Troubleshooting14

May be due toHeat pump action.CauseAlarm text on
the display
Alarm
no.
Faulty communication cableCompressor blocked.Communication with heat
pump missing.
Slave heat pump
1 comm fault.
252
15Chapter 6 | TroubleshootingNIBE™ VVM 500

B alarm
In the event of a B alarm the green light lights up on the front and a symbol with a service technician is displayed in
the information window until the alarm is reset. All alarms are automatically reset if the cause is rectified.
ExplanationAlarm text on the displayAlarm no.
Alarm 101-120. See A-alarm 1-20.Sensor fault BT1101
Sensor fault BT3103
Sensor fault BT6106
Sensor fault BT7107
Sensor fault BT12112
Sensor fault BT14114
Sensor fault BT15115
Sensor fault BT16116
Sensor fault BT17117
Sensor fault BT20120
See alarm 50.Temporary HP alarm150
The temperature of BT12 has ex-
ceeded 59 ºC. The alarm is reset
when the Temperature has
dropped below 59 ºC and condens-
er return (BT3) has dropped 2K
since the alarm.
High condenser out162
The return temperature (BT3) has
exceeded 58 °C. It is reset when the
temperature has dropped to 56 ºC.
High condenser in163
Temporary communication fault.
See alarm 70.
Com. error input card170
Temporary communication fault.
See alarm 71.
Com. error base card171
Temporary communication fault.
See alarm 73.
Com. error heating system2173
Temporary communication fault.
See alarm 74.
Com. error heating system3174
Temporary communication fault.
See alarm 76.
Com. error heating system4176
Activates if the heating is blocked
and the outdoor temperature (BT1)
falls below 3 ºC.
Freeze prot180
Heating is permitted and con-
trolled by min. supply.
Periodic increase has failed to reach
stop temp. within 5 hours.
Unsuccessful periodic increase181
NIBE™ VVM 500Chapter 6 | Troubleshooting16

ExplanationAlarm text on the displayAlarm no.
One or more power steps blocked
due to high current measured on
current sensor.
Load monitor activated182
Defrosting in progress.Defrosting183
Reminder to check filter. The ma-
chine has not been stopped for the
number of months set in menu
5.1.99.
Filter alarm184
Temporary communication fault.
See alarm 91.
Com. error WWC191
Temporary communication fault.
See alarm 93.
Com. Error DEW193
Temporary communication fault.
See alarm 96.
Comm. room unit, zone 1196
Temporary communication fault.
See alarm 97.
Comm. room unit, zone 2197
Temporary communication fault.
See alarm 98.
Comm. room unit, zone 3198
Temporary communication fault.
See alarm 99.
Comm. room unit, zone 4199
Temporary communication fault.
See alarm 100.
Com.Error inverter200
Inverter indicates alarmInverter alarm201
See alarm log menu 3.4 for error
code .
Inverter indicates errorInverter errors202
See alarm log menu 3.4 for error
code .
Temporary inverter fault. Switches
to alarm 203 after 60 minutes.
Inverter error type I213
Temporary inverter fault. Switches
to alarm 204 after 60 minutes or if
activated 3 times in less than 120
minutes.
Inverter error type II214
Temporary inverter fault. Switches
to alarm 205 if activated 2 times in
less than 60 minutes.
Inverter error type III215
17Chapter 6 | TroubleshootingNIBE™ VVM 500

Troubleshooting guide
Alarm 1 - sensor fault
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NIBE™ VVM 500Chapter 6 | Troubleshooting18