Nibe NIBE VVM 300 Technical specifications

MOS GB 0726-3
NIBE VVM 300
511806
INSTALLATION AND MAINTENANCE INSTRUCTIONS
NIBE VVM 300
LEK
+2
0
-2
VVM 300

LEK LEK LEK LEK
3
1
2
4
5
LEK LEK
LEK LEK
3
1
2
4
5

1NIBE VVM 300
User guide
General
Principle of operation ______________________________ 3
System diagram ___________________________________ 3
Abbreviations _____________________________________ 3
Front panel
Pressure gauge____________________________________ 4
Switch ___________________________________________ 4
Display___________________________________________ 4
Offset heating curve _______________________________ 5
Right keypad _____________________________________ 5
Left keypad_______________________________________ 5
Room temperature
Heating control system _____________________________ 6
Default setting ____________________________________ 6
Changing the room temperature manually ____________ 6
Basic values for the automatic heating control__________ 7
Setting with diagrams ______________________________ 8
Maintenance routines
Checking the safety valves __________________________ 9
Pressure gauge____________________________________ 9
Low temperature or a lack of hot water ______________ 10
High hot water temperature________________________ 10
Low room temperature ____________________________ 10
High room temperature ___________________________ 10
Switch position “ ” __________________________ 10
Alarm/alarm outputs ______________________________ 11
Resetting the temperature limiter ___________________ 13
Helping the circulation pump to start ________________ 13
Resetting the miniature circuit breakers ______________ 13
Installation
General information for the installer
Transport and storage _____________________________ 14
Maximum boiler and radiator volumes _______________ 14
Erecting the heat pump ___________________________ 14
Inspection of the installation _______________________ 14
Electric boiler mode_______________________________ 14
Pipe connections
General _________________________________________ 15
Pipe connection of the heating system and hot water __ 15
Draining the heating system________________________ 16
Capacity diagram, heating medium pump ____________ 16
Capacity diagram, charge pump ____________________ 16
Contents
Emptying the hot water heater _____________________ 16
Pipe connection between VVM 300 and FIGHTER 2020_ 17
Docking
General _________________________________________ 18
VVM 300 docked to FIGHTER 2020 _________________ 18
Electrical connections
Connection______________________________________ 19
Access to the lower electrical connections ____________ 19
Modular cable between VVM 300 and FIGHTER 2020 __ 20
Power rating as set at the factory ___________________ 21
Resetting the temperature limiter ___________________ 21
Max boiler temperature ___________________________ 21
Max phase current________________________________ 21
Connecting the outside sensor______________________ 21
Centralised load control/Tariff ______________________ 22
Load monitor ____________________________________ 22
External contacts _________________________________ 23
Disconnecting the charge pump ____________________ 23
Commissioning and adjusting
Preparations _____________________________________ 24
Filling the hot water heater and the heating system ____ 24
Venting the heating system ________________________ 24
Commissioning FIGHTER 2020 and VVM 300 _________ 25
Commissioning VVM 300 without FIGHTER 2020______ 25
Readjustment ____________________________________ 25
Miscellaneous
Control
General _________________________________________ 26
Key lock ________________________________________ 26
Quick movement _________________________________ 26
Changing parameters _____________________________ 27
Example ________________________________________ 27
Menu explanation _______________________________ 32
Electrical circuit diagram
Sensor placement ________________________________ 49
Temperature sensor data___________________________ 49
Technical specifications
Component locations _____________________________ 50
List of components _______________________________ 51
Dimensions and setting-out coordinates______________ 52
Accessories ______________________________________ 53
Technical specifications ____________________________ 54
Enclosed kit _____________________________________ 54

2NIBE VVM 300
General
In order to get the ultimate benefit from hot water module NIBE SMO 300 you
should read through these Installation and Maintenance Instructions.
VVM 300 supplies the house with hot water and heating and controls
FIGHTER 2020 optimally.
The intelligent controls ensure that VVM 300 always works as efficiently as
possible.
VVM 300 is a Swedish manufactured quality product with a long service life.
To be filled in when the product has been installed
The serial number (103), must always be stated with all correspondence with
NIBE.
069_ _ _ _ _ _ _ _ _ _ _
Installation date
Installer
Chosen max output, immersion heater
Circulation pump setting (16), heating medium
Menu setting 2.1, “Heat curve”
Setting Offset heating curve
Date__________________________ Sign___________________________

3NIBE VVM 300
User guide
General
Principle of operation
VVM 300 is an electric boiler designed for houses with wa-
ter borne heating. It consists of a double jacketed pressure
vessel, two immersion heaters and advanced controls.
The total water volume is 280 litres, of which 125 litres are
in the double jacketed space and 155 litres in the heater.
The hot water heater has a copper lining to protect against
corrosion. The immersion heaters are in the double jacket.
The immersion heaters have a max output of 13.5 kW
with option of setting lower outputs. The factory setting is
9.0 kW.
The charge pump in VVM 300 is speed controlled and ad-
justs the charge flow automatically.
VVM 300 is equipped with climate controlled automatic
by-passes to maintain the correct temperature for the
heating system. This temperature is determined by the ac-
tual outdoor temperature and selected basic settings.
VVM 300 is designed for connection and communication
with FIGHTER 2020. Sizes 8 and 10 can be connected.
FIGHTER 2020 and VVM 300 together make up a com-
plete heating plant.
FIGHTER 2020 covers the entire heating and hot water
requirement until the output requirement of the house
exceeds the specified heat pump output. In the tempera-
ture zone between balance temperature and stop tem-
perature, FIGHTER 2020 works together with VVM 300. If
the outdoor air temperature drops down to a level below
the stop temperature for FIGHTER 2020, all heating occurs
with VVM 300.
Abbreviations
AV Shut-off valve
FG Flow line sensor
RG Return line sensor
RC Control valve
SF Particle filter (Included in FIGHTER 2020)
SÄV Safety valve
UG Outside sensor
System diagram
The heating medium side and the hot water side must be
fitted with the necessary safety equipment in accordance
with the applicable regulations.
NOTE! This is an outline diagram. Actual installations must
be planned according to applicable standards.
FIGHTER 2020
VVM 300
AV
AV
SÄV
SF
RC
TV
UG
FIGHTER 2020
VVM 300
RC
52
63
44
44
76
99
21
15

4NIBE VVM 300
User guide
GB
DK
DK
2
1bar3
04
2
1bar3
04
2
1bar3
04
2
1bar3
04
ABABABI II III
54.1°C
Varmvattentemp.
1.0 13.43
ABABABI II III
54.1°C
Varmtvandstemp.
1.0 13.43
ABABABI II III
54.1°C
Hotwatertemp.
1.0 13.43
ABABABI II III
54.1°C
Brauchwassertemp.
1.0 13.43
DE
Front panel
Front panel
Display
Right keypadLeft keypad
Offset heating
curve
with three positions 1–0–:
1Normal mode. All control functions connected.
0The boiler is completely switched off.
Standby mode. This mode is used in the event
of operating disturbances. The immersion
heater output is limited to 6 kW, the circula-
tion pump (16) and charge pump (40) operate
continuously.
Compressor symbol
Atogether with compressor symbol, is displayed
when fan step 1 is in operation.
Btogether with compressor symbol, is displayed
when fan step 2 is in operation.
The compressor symbol alone indicates that the
compressor is to start, but is locked due to start
conditions in the FIGHTER 2020 not being met in-
ternally, e.g. time conditions.
Addition. heat symbol
Indicates when the additional heater is connected.
The line indicates which power step/steps are cur-
rently connected.
I3 kW additional power is connected.
II 4.5 kW additional power is connected.
III 6 kW additional power is connected.
Switch
Hot water symbol
Indicates when the “Extra hot water” function is
active.
A is shown when 3 hour temperature increase is
activated
B is shown when a time based temperature increase
is activated, for example periodic.
Circulation pump symbol
Shown when the circulation pump in the heating
system is in operation.
Heating system symbol
Shown when house heating with heat pump is in
progress.
Defrosting symbol
Indicates when FIGHTER 2020 defrosting is in
progress.
Display
First row:
Switch
Pressure gauge
The radiator circuit pressure is displayed here.
Gauge graduation is 0 – 4 bar. Normal pressure is
0.5 – 1.5 bar when the system is closed.
Pressure gauge
2
1bar 3
04
T G
+2
0
-2
1
R
0
A BABABI II III I II I II
29,0
95,0 8,5
55,0
69,1
81,4
82,8
93,7
110,0
28,5
56,0
83,5
473,0
525,0
339,0
Hål 29x23
Hål 66x36
7 st hål Ø10,5
10,5
Ø 52,8
53,5
Urstansning
7 mm bred, r=3,5
2
1bar 3
04
T G
+2
0
-2
1
R
0
A BABABI II III I II I II
29,0
95,0 8,5
55,0
69,1
81,4
82,8
93,7
110,0
28,5
56,0
83,5
473,0
525,0
339,0
Hål 29x23
Hål 66x36
7 st hål Ø10,5
10,5
Ø 52,8
53,5
Urstansning
7 mm bred, r=3,5
2
1bar 3
04
T G
+2
0
-2
1
R
0
A BABABI II III I II I II
29,0
95,0 8,5
55,0
69,1
81,4
82,8
93,7
110,0
28,5
56,0
83,5
473,0
525,0
339,0
Hål 29x23
Hål 66x36
7 st hål Ø10,5
10,5
Ø 52,8
53,5
Urstansning
7 mm bred, r=3,5
2
1bar 3
04
T G
+2
0
-2
1
R
0
A BABABI II III I II I II
29,0
95,0 8,5
55,0
69,1
81,4
82,8
93,7
110,0
28,5
56,0
83,5
473,0
525,0
339,0
Hål 29x23
Hål 66x36
7 st hål Ø10,5
10,5
Ø 52,8
53,5
Urstansning
7 mm bred, r=3,5
2
1bar 3
04
T G
+2
0
-2
1
R
0
A BABABI II III I II I II
29,0
95,0 8,5
55,0
69,1
81,4
82,8
93,7
110,0
28,5
56,0
83,5
473,0
525,0
339,0
Hål 29x23
Hål 66x36
7 st hål Ø10,5
10,5
Ø 52,8
53,5
Urstansning
7 mm bred, r=3,5
2
1bar 3
04
T G
+2
0
-2
1
R
0
A BABABI II III I II I II
29,0
95,0 8,5
55,0
69,1
81,4
82,8
93,7
110,0
28,5
56,0
83,5
473,0
525,0
339,0
Hål 29x23
Hål 66x36
7 st hål Ø10,5
10,5
Ø 52,8
53,5
Urstansning
7 mm bred, r=3,5
GB
DK
DK
2
1bar3
04
2
1bar3
04
2
1bar3
04
2
1bar3
04
ABABABI II III
54.1°C
V a rmva ttentemp.
1.0 13.43
ABABABI II III
54.1°C
V a rmtvandstemp.
1.0 13.43
ABABABI II III
54.1°C
Hotwater temp.
1.0 13.43
ABABABI II III
54.1°C
Brauchwassertemp.
1.0 13.43
DE
GB
DK
DK
2
1bar3
04
2
1bar3
04
2
1bar3
04
2
1bar3
04
ABABABI II III
54.1°C
V a rmva ttentemp.
1.0 13.43
ABABABI II III
54.1°C
V a rmtvandstemp.
1.0 13.43
ABABABI II III
54.1°C
Hotwatertemp.
1.0 13.43
ABABABI II III
54.1°C
Brauchwassertemp.
1.0 13.43
DE
Second row: Value of the current parameter.
Third row: Description of current display parameter.
“Hot water temp” is normally shown.
Fourth row: Shows information symbols.
Menu number.
Pool heating in progress.
Key lock activated.
A BI II III I II I II
50.0 C
Varmvattentemp. 1.0
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A B A A BI II IIIIII
50.0 C
Hotwatertemperature
13.43
1.0
A A BI II IIIIII
50.0 C
Temp. Ciepłej Wody
13.43
1.0
A
A BI II IIIIII
50.0 C
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvannstemp.
13.43
1.0
A A BI II IIIIII
50.0 C
Warmtapwatertemp
13.43
1.0
A
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvandstemperatur
13.43
1.0
A
Tepla uzitkova voda
A BI II IIIIII
50.0 C
13.43
1.0
A
Temperatura ACS
A BI II IIIIII
50.0 C
Brauchwassertemp.
13.43
1.0
A
TYSKA GB PL
CH
ES
NO NL
A BI II IIIIII
50.0 C
Käyttövesilämpötila
13.43
1.0
A
FI
A BI II IIIIII
50.0 C
Varmvattentemperatur
13.43
1.0
F1250
P
A BI II III I II I II
50.0 C
Varmvattentemp. 1.0
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A B A A BI II IIIIII
50.0 C
Hotwatertemperature
13.43
1.0
A A BI II IIIIII
50.0 C
Temp. Ciepłej Wody
13.43
1.0
A
A BI II IIIIII
50.0 C
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvannstemp.
13.43
1.0
A A BI II IIIIII
50.0 C
Warmtapwatertemp
13.43
1.0
A
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvandstemperatur
13.43
1.0
A
Tepla uzitkova voda
A BI II IIIIII
50.0 C
13.43
1.0
A
Temperatura ACS
A BI II IIIIII
50.0 C
Brauchwassertemp.
13.43
1.0
A
TYSKA GB PL
CH
ES
NO NL
A BI II IIIIII
50.0 C
Käyttövesilämpötila
13.43
1.0
A
FI
A BI II IIIIII
50.0 C
Varmvattentemperatur
13.43
1.0
F1250
P
A BI II III I II I II
50.0 C
Varmvattentemp. 1.0
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A B A A BI II IIIIII
50.0 C
Hotwatertemperature
13.43
1.0
A A BI II IIIIII
50.0 C
Temp. Ciepłej Wody
13.43
1.0
A
A BI II IIIIII
50.0 C
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvannstemp.
13.43
1.0
A A BI II IIIIII
50.0 C
Warmtapwatertemp
13.43
1.0
A
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvandstemperatur
13.43
1.0
A
Tepla uzitkova voda
A BI II IIIIII
50.0 C
13.43
1.0
A
Temperatura ACS
A BI II IIIIII
50.0 C
Brauchwassertemp.
13.43
1.0
A
TYSKA GB PL
CH
ES
NO NL
A BI II IIIIII
50.0 C
Käyttövesilämpötila
13.43
1.0
A
FI
A BI II IIIIII
50.0 C
Varmvattentemperatur
13.43
1.0
F1250
P

5NIBE VVM 300
User guide
Front panel
Operating mode
This button is used to set the required operating
mode with regard to permitting/blocking the circula-
tion pump and additional energy. The change does
not need to be confirmed with the enter button.
The current operating mode is shown on the display
when the button is pressed and the mode changes
when you continue to press the button. The display
returns to the normal display mode once the enter
button is pressed.
The different operating modes are:
Auto mode: VVM 300 automatically selects the
operating mode with reference to the outdoor tem-
perature. The circulation pump and the immersion
heater are permitted to run as needed.
Summer mode: Only production of hot water us-
ing FIGHTER 2020. The circulation pump and im-
mersion heater are blocked. However, when “Extra
hot water” is activated the immersion heater is
connected.
Spring/Autumn mode: Only production of heating
and hot water using FIGHTER 2020. The circulation
pump is operational. The immersion heater is disa-
bled. However, when “Extra hot water” is activated
the immersion heater is connected.
Extra Hot Water
The “Extra hot water” function is activated for a pe-
riod of 3 hours using this button. The change does
not need to be confirmed with the enter button.
At activation, the hot water temperature increases
above the normal temperature, up to the set value.
No function.
The plus button is used to scroll through the menu
system (forwards) or increase the value of the se-
lected parameter.
The minus button is used to scroll through the
menu system (backwards) or lower the value of the
selected parameter.
The enter button is used to select a lower menu in
the menu system, to activate a parameter change as
well as confirm a parameter change.
See the section “Control” – “General”.
This knob is used to change the heating curve's par-
allel offset and in doing so the room temperature.
Turning clockwise increases the room temperature.
When the knob is turned menu 2.0 is shown on the
display and the value for the calculated flow tem-
perature changes.
Also see the section Room temperature.
Right keypad
Offset heating curve Left keypad
A BI II III
I II I II
Varmvattentemp.
50.0 °C
A BI II III
I II
50.0 °C
Varmtvandstemp.
A BI II III
I II
50.0 °C
Hotwatertemp.
A BI II III
I II
50.0 °C
Brauchwassertemp.
SMO10
SMO10
SMO10 SMO10
4 st hål Ø6,0
53,0
93,1
9,0
105,4
106,8
117,7
215,0
224,0
40,5
9,0
68,0
95,5
345,0
354,0
Hål 66x36
7 st hål Ø10,5
1.0 13.43
1.0 13.43
1.0 13.43 1.0 13.43
A B
A B
A B A B
A BI II III
I II I II
Varmvattentemp.
50.0 °C
A BI II III
I II
50.0 °C
Varmtvandstemp.
A BI II III
I II
50.0 °C
Hotwatertemp.
A BI II III
I II
50.0 °C
Brauchwassertemp.
SMO10
SMO10
SMO10 SMO10
4 st hål Ø6,0
53,0
93,1
9,0
105,4
106,8
117,7
215,0
224,0
40,5
9,0
68,0
95,5
345,0
354,0
Hål 66x36
7 st hål Ø10,5
1.0 13.43
1.0 13.43
1.0 13.43 1.0 13.43
A B
A B
A B A B
A BI II III
I II I II
Varmvattentemp.
50.0 °C
A BI II III
I II
50.0 °C
Varmtvandstemp.
A BI II III
I II
50.0 °C
Hotwatertemp.
A BI II III
I II
50.0 °C
Brauchwassertemp.
SMO10
SMO10
SMO10 SMO10
4 st hål Ø6,0
53,0
93,1
9,0
105,4
106,8
117,7
215,0
224,0
40,5
9,0
68,0
95,5
345,0
354,0
Hål 66x36
7 st hål Ø10,5
1.0 13.43
1.0 13.43
1.0 13.43 1.0 13.43
A B
A B
A B A B
A BI II III
I II I II
Varmvattentemp.
50.0 °C
A BI II III
I II
50.0 °C
Varmtvandstemp.
A BI II III
I II
50.0 °C
Hotwatertemp.
A BI II III
I II
50.0 °C
Brauchwassertemp.
SMO10
SMO10
SMO10 SMO10
4 st hål Ø6,0
53,0
93,1
9,0
105,4
106,8
117,7
215,0
224,0
40,5
9,0
68,0
95,5
345,0
354,0
Hål 66x36
7 st hål Ø10,5
1.0 13.43
1.0 13.43
1.0 13.43 1.0 13.43
A B
A B
A B A B
A BI II III
I II I II
Varmvattentemp.
50.0 °C
A BI II III
I II
50.0 °C
Varmtvandstemp.
A BI II III
I II
50.0 °C
Hotwatertemp.
A BI II III
I II
50.0 °C
Brauchwassertemp.
SMO10
SMO10
SMO10 SMO10
4 st hål Ø6,0
53,0
93,1
9,0
105,4
106,8
117,7
215,0
224,0
40,5
9,0
68,0
95,5
345,0
354,0
Hål 66x36
7 st hål Ø10,5
1.0 13.43
1.0 13.43
1.0 13.43 1.0 13.43
A B
A B
A B A B
A BI II III
I II I II
Varmvattentemp.
50.0 °C
A BI II III
I II
50.0 °C
Varmtvandstemp.
A BI II III
I II
50.0 °C
Hotwatertemp.
A BI II III
I II
50.0 °C
Brauchwassertemp.
SMO10
SMO10
SMO10 SMO10
4 st hål Ø6,0
53,0
93,1
9,0
105,4
106,8
117,7
215,0
224,0
40,5
9,0
68,0
95,5
345,0
354,0
Hål 66x36
7 st hål Ø10,5
1.0 13.43
1.0 13.43
1.0 13.43 1.0 13.43
A B
A B
A B A B
A BI II III
I II I II
Varmvattentemp.
50.0 °C
A BI II III
I II
50.0 °C
Varmtvandstemp.
A BI II III
I II
50.0 °C
Hotwatertemp.
A BI II III
I II
50.0 °C
Brauchwassertemp.
SMO10
SMO10
SMO10 SMO10
4 st hål Ø6,0
53,0
93,1
9,0
105,4
106,8
117,7
215,0
224,0
40,5
9,0
68,0
95,5
345,0
354,0
Hål 66x36
7 st hål Ø10,5
1.0 13.43
1.0 13.43
1.0 13.43 1.0 13.43
A B
A B
A B A B
Key lock
A key lock can be activated by simultaneously pressing the
Plus and the Minus buttons. The key symbol will then be
shown on the display. The same procedure is used to deac-
tivate the key lock.

6NIBE VVM 300
User guide
A BI II III I II I II
50.0 C
Varmvattentemp. 1.0
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A B A A BI II IIIIII
50.0 C
Hotwatertemperature
13.43
1.0
A A BI II IIIIII
50.0 C
Temp. Ciepłej Wody
13.43
1.0
A
A BI II IIIIII
50.0 C
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvannstemp.
13.43
1.0
A A BI II IIIIII
50.0 C
Warmtapwatertemp
13.43
1.0
A
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvandstemperatur
13.43
1.0
A
Tepla uzitkova voda
A BI II IIIIII
50.0 C
13.43
1.0
A
Temperatura ACS
A BI II IIIIII
50.0 C
Brauchwassertemp.
13.43
1.0
A
TYSKA GB PL
CH
ES
NO NL
A BI II IIIIII
50.0 C
Käyttövesilämpötila
13.43
1.0
A
FI
A BI II IIIIII
50.0 C
Varmvattentemperatur
13.43
1.0
F1250
P
Default setting
The basic heating is set using menu 2.1 and with the
“Heating curve offset” knob.
If you do not know the correct settings use the basic data
from the map opposite.
If the required room temperature is not obtained, readjust-
ment may be necessary.
NOTE! Wait one day between settings so that the tem-
peratures have time to stabilise.
Room temperature
Offset heating curve
Menu 2.1 Heat curve
Heating control system
The indoor temperature depends on several factors.
During the hot season, solar radiation and heat given off
by people and equipment are sufficient to keep the house
warm. When it gets colder outside, the heating system
must be started. The colder its gets, the hotter the radia-
tors must be.
This adjustment is made automatically, however the basic
settings must first be made on the boiler, see the section
“Default setting”.
Room temperature
Readjustment the default settings
Cold weather conditions
When the room temperature is too low, the “Heating
curve” value is increased in menu 2.1 by one incre-
ment.
When the room temperature is too high, the “Heating
curve” value is decreased in menu 2.1 by one incre-
ment.
Warm weather conditions
If the room temperature is low, increase the heating
curve offset setting by one step.
If the room temperature is high, reduce the “Heating
curve offset” setting by one step.
Changing the room temperature manually
If you want to temporarily or permanently lower or raise
the indoor temperature relative to the previously set tem-
perature, turn the “Heating curve offset” knob anticlock-
wise or clockwise. One to three lines approximately repre-
sents a one degree change in room temperature.
NOTE! An increase in the room temperature may be inhib-
ited by the radiator or underfloor heating thermostats, if
so these must be turned up.
9
Heat curve
2.1

7NIBE VVM 300
User guide
Room temperature
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (-2)
VÄRMEKURVA
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 40 °C
UTETEMPERATUR
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (+2)
9
VÄRMEKURVA
VÄRMEKURVA
- 5
+ 5
FÖRSKJUTNING
VÄRMEKURVA (0)
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (-2)
HEATING CURVE
30
40
50
60
70
°C
FLOW TEMPERATURE
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (+2)
9
HEATING CURVE
HEATING CURVE
- 5
+ 5
HEATING
CURVE OFFSET (0)
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (-2)
VÄRMEKURVA
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 40 °C
UTETEMPERATUR
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (+2)
9
VÄRMEKURVA
VÄRMEKURVA
- 5
+ 5
FÖRSKJUTNING
VÄRMEKURVA (0)
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (-2)
HEATING CURVE
30
40
50
60
70
°C
FLOW TEMPERATURE
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (+2)
9
HEATING CURVE
HEATING CURVE
- 5
+ 5
HEATING
CURVE OFFSET (0)
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (-2)
VÄRMEKURVA
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 40 °C
UTETEMPERATUR
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
UTETEMPERATUR
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FRAMLEDNINGSTEMPERATUR
- 20 - 30
FÖRSKJUTNING
VÄRMEKURVA (+2)
9
VÄRMEKURVA
VÄRMEKURVA
- 5
+ 5
FÖRSKJUTNING
VÄRMEKURVA (0)
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (-2)
HEATING CURVE
30
40
50
60
70
°C
FLOW TEMPERATURE
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10 - 20 - 30
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
1514 13 12 11 10
8
7
6
5
4
3
2
1
- 40 °C
OUTSIDE TEMPERATURE
- 10
0
10
- 5
+ 5
30
40
50
60
70
°C
FLOW TEMPERATURE
- 20 - 30
HEATING
CURVE OFFSET (+2)
9
HEATING CURVE
HEATING CURVE
- 5
+ 5
HEATING
CURVE OFFSET (0)
A BI II III I II I II
50.0 C
Varmvattentemp. 1.0
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A B A A BI II IIIIII
50.0 C
Hotwatertemperature
13.43
1.0
A A BI II IIIIII
50.0 C
Temp. Ciepłej Wody
13.43
1.0
A
A BI II IIIIII
50.0 C
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvannstemp.
13.43
1.0
A A BI II IIIIII
50.0 C
Warmtapwatertemp
13.43
1.0
A
A BI II III I II
50.0 C
Varmvattentemperatur
13.43
1.0
A
A BI II IIIIII
50.0 C
Varmtvandstemperatur
13.43
1.0
A
Tepla uzitkova voda
A BI II IIIIII
50.0 C
13.43
1.0
A
Temperatura ACS
A BI II IIIIII
50.0 C
Brauchwassertemp.
13.43
1.0
A
TYSKA GB PL
CH
ES
NO NL
A BI II IIIIII
50.0 C
Käyttövesilämpötila
13.43
1.0
A
FI
A BI II IIIIII
50.0 C
Varmvattentemperatur
13.43
1.0
F1250
P
“Heating curve” in menu 2.1 and “Max
supply temp.” in menu 2.4 are adjusted
according to the heating system in
question.
NOTE!
Setting with diagrams
The heating control system on VVM 300 is controlled by
the outside temperature. This means the flow temperature
is regulated in relation to the current outdoor temperature.
The diagram is based on the dimensioned outdoor temper-
ature in the area and the dimensioned supply temperature
of the heating system. When these two values “meet”,
the heating control's curve slope can be read. This is set
under menu 2.1, “Heating curve”.
A suitable value is set using the knob on the front panel,
“Offset heat curve”. A suitable value for underfloor heat-
ing is -1 and for radiator systems -2.
Offset heating curve
Menu 2.1 Heat curve
Shifting the heating curve -2
HEATING CURVE
OFFSET HEAT CURVE
SUPPLY TEMPERATURE
OUTSIDE TEMPERATURE
Shifting the heating curve 0
HEATING CURVE
OFFSET HEAT CURVE
SUPPLY TEMPERATURE
OUTSIDE TEMPERATURE
HEATING CURVE
SUPPLY TEMPERATURE
OUTSIDE TEMPERATURE
OFFSET HEAT CURVE
Shifting the heating curve +2
9
Heat curve
2.1

8NIBE VVM 300
User guide
LEK
Art.nr.611???
2
1bar3
04
Gammalt
LEK
Art.nr.611???
2
1bar3
04
Gammalt
LEK
LEK
LEK
Gammalt
LEK
Gammalt
GB
DK
DK
2
1bar3
04
2
1bar3
04
2
1bar3
04
2
1bar3
04
ABABABI II III
54.1°C
Varmvattentemp.
1.0 13.43
ABABABI II III
54.1°C
Varmtvandstemp.
1.0 13.43
ABABABI II III
54.1°C
Hotwatertemp.
1.0 13.43
ABABABI II III
54.1°C
Brauchwassertemp.
1.0 13.43
DE
Maintenance routines
Maintenance routines
The working range of the heating system is normally 0.5
– 1.5 bar when the system is closed. Check this on the
pressure gauge (42).
Checking the safety valves
52
47
VVM 300P has two safety valves, one for the heating sys-
tem and one for the hot water heater.
The heating system’s safety valve (52) must be completely
tight, but the heater’s safety valve (47) may occasionally
release some water after hot water has been used. This is
because the cold water, which enters the heater to replace
the hot water, expands when heated causing the pressure
to rise and the safety valve to open.
The safety valves must be checked regularly. Check one
valve at a time as follows:
Open the valve.
■
Check that water flows through the valve.■
Close the valve again.■
The heating system may need to be refilled af-■
ter checking the safety valve (52), see the section
“Commissioning and adjustment” – “Filling the heat-
ing system”.
Pressure gauge

9NIBE VVM 300
User guide
Dealing with malfunctions
In the event of malfunction or operating disturbances first
check the points below:
Low temperature or a lack of hot water
Air in boiler or system.■
Large amounts of hot water were used.■
Circuit or main MCB tripped.■
Possible earth circuit-breaker tripped.■
Mixer valve set too low (45).■
Switch (8) set to “0”.■
Tripped Miniature circuit-breaker (7) or Fine-wire fuse■
(33). See “Dealing with malfunctions” – “Resetting the
miniature circuit breakers”.
Tripped temperature limiter (6). (Contact service)
■
Closed or throttled filler valve (46) to the heater.■
Load monitor or external control may have been■
blocked the electrical output.
Incorrectly set values for hot water production.
■
High hot water temperature
Mixer valve set too high.■
Incorrectly set values for hot water production.■
Low room temperature
Air in boiler or system.■
Circuit or main MCB tripped.■
Possible earth circuit-breaker tripped.■
Tripped Miniature circuit-breaker (7) or Fine-wire fuse■
(33). See “Dealing with malfunctions” – “Resetting the
miniature circuit breakers”.
Tripped temperature limiter (6). (Contact service)
■
Automatic heating control system settings not correct.■
24 hour setting incorrectly set so that night reduction is■
active during the day.
Circulation pump (16) stopped. See the section
■
“Dealing with malfunctions” – “Starting the pump”.
Close valves (44) and (50) in the radiator circuits.
■
Initial pressure in expansion vessel too low. This is■
indicated by low pressure on the pressure gauge (42).
Contact the installer.
Load monitor or external control may have been
■
blocked the electrical output.
High room temperature
Incorrect values set on the automatic heating control■
system.
If the operating disturbance cannot be rectified by means
of the above an installation engineer should be called.
If necessary set the switch to” ”. See the section,
“Switch position “ ”.
The adjustment
screw
Switch position “ ”
In mode ” ” the boiler’s electronic controls are dis-
connected, the display window is not lit.
The immersion heater is controlled by a separate thermo-
stat. Available output in standby mode is 6 kW.
The automatic heating control system is not operational,
so manual shunt operation is required. This is done by
turning the adjustment screw to “manual mode” and then
turning the shunt knob to the desired position.
Max temperature of standby mode thermostat must be set
with regard to the heating system’s max permitted operat-
ing temperature, in connection with installation.
The circulation pump (16) and charge pump (40) are in
continuous operation.
When returning to normal mode do not
forget to reset the shunt knob to its origi-
nal position by turning the adjustment
screw to “A”.
NOTE!
LEK
LEK
Gammalt
LEK
Art.nr.611???
2
1bar3
04
Gammalt
GB
DK
DK
2
1bar3
04
2
1bar3
04
2
1bar3
04
2
1bar3
04
ABABABI II III
54.1°C
Varmvattentemp.
1.0 13.43
ABABABI II III
54.1°C
Varmtvandstemp.
1.0 13.43
ABABABI II III
54.1°C
Hotwatertemp.
1.0 13.43
ABABABI II III
54.1°C
Brauchwassertemp.
1.0 13.43
DE
LEK LEK
LEK

10 NIBE VVM 300
User guide
Effektvakt 100
230 Va c
L N
1234 67
8
10 12 13 14
FIGHTER
Huvudsäkring
3 st strömkännare
30.1 30.2
A
BC
44
4
L1
L2
L3
Dealing with malfunctions
LOW PRESSURE
This information is shown when the low pressure switch
in FIGHTER 2020 has tripped. This may be due to a frozen
evaporator or reduced air flow through the evaporator.
Indicated as 05 in channel S1 on FIGHTER 2020.
The information disappears when the pressostat is reset
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
SENSOR ALARM
This information is shown when a temperature sensor in
FIGHTER 2020 stops working. This may be due to an open-
circuit or incorrect installation. Indicated as 08 in channel
S1 on FIGHTER 2020.
The information disappears when the cause is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
HIGH PRESSURE
This information is shown when the high pressure switch
in FIGHTER 2020 has tripped. This may be due to too low
charge flow or air in the system. Indicated as 06 in channel
S1 on FIGHTER 2020.
The information disappears when the pressostat is reset
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
MOTOR SECURITY
This information is shown when the motor protection
in FIGHTER 2020 has tripped. The alarm may be due to
dropped phase because of tripped fuses or incorrectly
set motor protection. Indicated as 07 in channel S1 on
FIGHTER 2020.
The information disappears when the fault is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
In the event of an alarm the relay contact closes
* Means that the compressor is blocked and the flow temperature is forced to the set minimum temperature in (menu 2.3).
Press the operating mode button twice to shift to normal boiler mode.
Alarm/alarm outputs
Other information can also be shown on the display be-
sides the standard information. This applies with malfunc-
tions or for calls to take action. This type of information is
only shown in menu 1.0 (The display always automatically
returns to menu 1.0 approximately 30 minutes after the
last button was pressed). This information alternates with
menu 1.0’s standard information. At the same time the
display’s background lighting flashes.
The following information can be shown:
Supply
Max 2A/250 VAC
Alarm output
LOW FLUID TEMP.
1.0
HIGH PRESSURE
1.0
MOTOR SECURITY
1.0
SENSOR ALARM
1.0

11NIBE VVM 300
User guide
Dealing with malfunctions
REPLACED SENSOR
This information is displayed when sensors in FIGHTER
2020 are incorrectly installed. Indicated as 12 in channel
S1 on FIGHTER 2020.
The information disappears when the cause is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
DEFROSTING TIME
This information is shown when defrosting in FIGHTER
2020 has failed three times in succession. Check the
temperature on the return line sensor (channel T3). If it is
below 10 °C the heat pump will not defrost. Check the
temperature on the evaporator sensor (channel T7). If it is
higher than the outdoor air temperature (channel T1) dur-
ing compressor operation the heat pump does not defrost.
Indicated as 15 in channel S1 on FIGHTER 2020.
The information disappears when the cause is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
COMM ALARM
Error text is displayed when contact between VVM 300
and FIGHTER 2020 is lost. This may be due to a wiring
short-circuit or lost power to FIGHTER 2020. The informa-
tion disappears when both VVM 300 and FIGHTER 2020
have been restarted.
NOTE! VVM 300 must be powered within 5 minutes after
FIGHTER 2020 restarts and communication between the
products is resumed. VVM 300 switches to reduced boiler
mode*.
SHORT OP TIME
This information is displayed when the operating time of
FIGHTER 2020 has been less than 2 minutes 3 times in a
row. Indicated as 16 in channel S1 on FIGHTER 2020.
The information disappears when the cause is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
PERMANENT HOT GAS
This information is displayed when hotgas in FIGHTER
2020 exceeds 120 °C. Becomes continuous after three
repetitions within 240 minutes. Indicated as 17 in channel
S1 on FIGHTER 2020.
The information disappears when the cause is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
PHASE ERROR
This information is displayed when the compressor in
FIGHTER 2020 has the incorrect direction of rotation.
Indicated as 18 in channel S1 on FIGHTER 2020. When
starting for the first time or after work in the distribution
board see “Commissioning and adjusting” – “Startup and
inspection” in FIGHTER 2020 Installation and Maintenance
Instructions.
The information disappears when the cause is remedied
and FIGHTER 2020 has been restarted. VVM 300 switches
to reduced boiler mode*.
REPLACED SENSOR
1.0
DEFROSTING TIME
1.0
COMM ALARM
1.0
SHORT OP TIME
1.0
PERMANENT HOT GAS
1.0
PHASE ERROR
1.0

12 NIBE VVM 300
User guide
Dealing with malfunctions
SENSOR ALARM HM
This information is shown when a fault on the flow tem-
perature sensor has been registered. The alarm may be
due to faulty sensors or a broken sensor cable. The infor-
mation disappears when the fault is remedied and VVM
300 has been restarted.
SENSOR ALARM HW
This information is shown when a fault on the hot water
temperature sensor has been registered. The alarm may be
due to faulty sensors or a broken sensor cable. The infor-
mation disappears when the fault is remedied and VVM
300 has been restarted.
SENSOR ALARM EP
This information is shown when a fault on the immersion
heater temperature sensor has been registered. The alarm
may be due to faulty sensors or a broken sensor cable. The
information disappears when the fault is remedied and
VVM 300 has been restarted.
TB-LARM
Shown when any temperature limiter has tripped. The
cause of the fault may be that VVM 300 has been started
without the boiler section being filled with water. The
temperature limiter may have tripped during transporta-
tion of VVM 300, . To reset, see ”Electrical connection
– Resetting the temperature limiter”. The information
disappears when the fault is remedied and VVM 300 has
been restarted.
* Means that the compressor is blocked and the flow temperature is forced to the set minimum temperature in (menu 2.3).
Press the operating mode button twice to shift to normal boiler mode.
SENSOR ALARM HW
1.0
SENSOR ALARM HM
1.0
SENSOR ALARM EP
1.0
TB-LARM
1.0

13NIBE VVM 300
User guide
Luftningsskruv
16
Luftningsskruv
16
LEKLEK
GRUND FOS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
GRUNDFOS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
Entlüfterschraube
16
LEK
GRUNDFOS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
Venting screw
16
LEK
GRUNDFOS
Type UPS 25- 60 130 P/N:59526447
230V- PC;0017NIB
50Hz
IP 44
TF 110
Class H
Max. 10bar
2.5uF
450.20
650.30
900.40
1m(A) P,(W)
GB
DE
Dealing with malfunctions
Resetting the temperature limiter
The temperature limiter (6) is accessible from behind the
centre front cover and is positioned under the inner pro-
tective cover.
The temperature limiter is reset by firmly pressing in its
button. The button can be accessed from the underside
of the distribution box. The cover on the distribution box
does not need to be removed when resetting.
Helping the circulation pump to start
Switch VVM 300 off by setting the switch (8) to ”0”.■
Remove the lower front cover.■
Loosen the venting screw with a screwdriver. Hold a■
cloth around the screwdriver blade as a certain amount
of hot water may run out.
Insert a screwdriver and turn the pump rotor.
■
Screw in the venting screw.■
Start VVM 300 and check whether the circulation■
pump runs.
It is usually easier to start the circulation pump with VVM
300 running, switch (8) set to “1”. If helping the circula-
tion pump to start is performed with VVM 300 running, be
prepared for the screwdriver to jerk when the pump starts.
Resetting the miniature circuit breakers
The MCB (7) is accessible behind the upper front access
panel and is located to the right of the panel.
Normal mode of the miniature circuit-breaker is “1” (up).
LEK
Art.nr.611???
2
1bar3
0 4
Gammalt
6
Venting screw
LEK
Art.nr.611???
2
1b a r3
0 4
Gammalt
LEK
Gammalt

14 NIBE VVM 300
Installation
LEK
Art.nr.611???
2
1bar3
04
Gammalt
40 16
General information for the installer
Transport and storage
VVM 300 must be transported and stored upright and dry.
The VVM 300 may, however, be carefully laid on its back
when being moved into a building.
Maximum boiler and radiator volumes
The volume of the expansion
vessel (85) is 12 litres and it is
pressurised as standard to 0.5
bar (5 mvp). As a result, the
maximum permitted height “H”
between the vessel and the
highest radiator is 5 metres; see
figure.
If the standard initial pressure in
the pressure vessel is not high
enough it can be increased by
adding air via the valve in the
expansion vessel. The initial
pressure of the expansion vessel
must be stated in the inspection document.
Any change in the initial pressure affects the ability of the
expansion vessel to handle the expansion of the water.
The maximum system volume excluding the boiler at 80 °C
is 140 litres at the above initial pressure.
Erecting the heat pump
It is recommended to install the electric boiler in a room
with existing floor drainage, most suitably in utility room
boiler room.
The unit can be aligned using the adjustable feet.
Route pipes so they are not fixed to an internal wall that
backs on to a bedroom or living room.
Inspection of the installation
Current regulations require the heating installation to be
inspected before it is commissioned. The inspection must
be carried out by a suitably qualified person and should
be documented. The above applies to installations with a
closed expansion vessel. If the electric boiler or the expan-
sion vessel is replaced, the installation must be inspected
again.
The adjustment screw
General information for the installer
Electric boiler mode
VVM 300 can be set in electric boiler mode from here. This
mode means the heat pump is blocked, but all other com-
ponents function as normal. This mode can be activated
if a fault is discovered with the heat pump or if the heat
pump is not installed. Summer mode cannot be activated
in electric boiler mode.
Two different operating modes are possible.
Option 1. Electric boiler operation
Select “Service” in menu 8.1.1.
■
Select “Off” in menu 9.3.12 directly after start up■
to prevent the charge pump from running.
Select “0” in menu 9.1.2.
■
Select “Yes” in menu 9.3.2.■
Option 2. Standby mode “ ”
Note! The charge pump (40) will run continuously in
this mode.
If the outdoor sensor is not connected, this mode should
be used. In mode ” ”, electronic control is discon-
nected. The display is off.
The automatic heating control system is not operational,
so manual shunt operation is required. This is done by
turning the adjustment screw to “manual mode” and then
turning the shunt knob to the desired position.
The immersion heater output is limited to 4 kW and the
circulation pump (16) and charge pump (40) operate con-
tinuously.
When returning to normal mode do not
forget to reset the shunt knob to its origi-
nal position by turning the adjustment
screw to “A”.
NOTE!
H
If FIGHTER 2020 is not docked, the charge
pump (40) will suffer damage when running.
NOTE!

15NIBE VVM 300
Installation
Pipe connections
General
Pipe installation must be carried out in accordance with
current norms and directives.
NOTE! When the circulation pump is running, the flow
in the radiator circuit must not be completely stopped. In
other words, in a system where the radiator flow might
stop because all thermostat valves are closed, there must
be a bypass valve to protect the circulation pump.
Total volume is 280 litres with 155 litres in the hot water
heater and 125 litres in the double jacketed space.
The pressure vessel in VVM 300 is approved for max 9.0
bar (0.9 MPa) in the heater and 2.5 bar (0.25 MPa) in the
double jacket space.
An overflow pipe should be routed from the overflow cup
(99) to an appropriate drain. The dimension of the over-
flow pipe must be the same as the waste water pipe, Ø 32
(98) and be routed downwards to prevent water pock-
ets and to be frost proof. The outlet of the overflow pipe
should be visible. See applicable norms.
Pipe connections
The pipe work must be flushed before the
electric boiler is connected, so that any
contaminants do not damage the
components parts.
NOTE!
Pipe connection of the heating system and
hot water
Pipe connection for VVM 300 is carried out as follows.
Connect flow line, radiator circuit (70) and return line, ra-
diator circuit (71) to the heating system.
Connect cold water connection (73) and hot water outlet
from heater (74) to the hot water pipe. If FIGHTER 2020 is
not to be connected (75) and (76) must be plugged.
LEK
2
1bar3
04
Gammalt
52
99
98
80
47
74 73 71 70
51
75
76

16 NIBE VVM 300
Installation
Pipe connections
FIGHTER 2020
VVM 300
AV
AV
SÄV
SF
RC
TV
UG
FIGHTER 2020
VVM 300
RC
52
63
44
44
76
99
21
15
Docking
The safety equipment must be installed in accordance with
current regulations for all docking options. See www.nibe.
com/docking for more docking options.
VVM 300 controls FIGHTER 2020, which runs with floating
condensation towards the heating system.
If FIGHTER 2020 cannot meet the heating requirement,
additional heat is shunted in from VVM 300. When the
outside temperature drops below the set stop temperature
VVM 300 engages and takes over the heating.
VVM 300 docked to FIGHTER 2020
Abbreviations
AV Shut-off valve
FG Flow line sensor
RG Return line sensor
RC Control valve
SF Particle filter (Included in FIGHTER 2020)
SÄV Safety valve
UG Outside sensor

17NIBE VVM 300
Installation
LEK
2
1bar3
04
Gammalt
LEK
LEK
Dold!
: Fighter 2010-4/8kW
: 089261
: Fighter 2010-4/8kW
: 089261
15
17
70
95
71
103
7
86
33
90 102
76
40
75
Pumpkapacitet
Flöde
Tillgängligt tryck, kPa
Internt tryckfall i panna
(inklusive armatur)
Tillgänglig pumpkapacitet
(pannans interntryckfall fråndraget)
3
2
1
0 500 1000
0
1500 2000
4
l/h
P
5
6
Interner Druckverlust in der Heizung
(einschließlich Armatur)
Zugängliche Pumpenkapazität
(interner Heizdruckverlust abgezogen)
3
2
1
kPa
kPa
60
50
40
30
20
10
0
mWs
l/s
0,50,40,30,20,10
Höchstmenge:1700 l/h
Höchstmenge:1700 l/h
3
2
1
0 500 1000
0
1500 2000
4
l/h
l/h
l/h
P
5
6
Internal pressure drop in boiler
(including fittings)
Available pump capacity
(less the internal pressure drop of the boiler)
3
2
1
wg
10
200
00
20
400
30
600
40
800
50
1000
60
1200
70
1400 1600 1800 2000
50
40
30
20
10
0
m
Flow
l/s
0,50,40,30,20,10
l/s
0,50,40,30,20,10
Max flow: 1700 l/h Max flow: 1700 l/h
Max flöde: 1700 l/h
l/s
0,50,40,30,20,10
Flow, l/h
Available pump capacity, kPa
10
200
00
20
400
30
600
40
800
50
1000
60
1200
70
1400 1600 1800 2000
Menge
Vorhandener Druck, kPa
10
200
00
20
400
30
600
40
800
50
1000
60
1200
70
1400 1600 1800 2000
Flöde
Tillgängligt tryck, kPa
kPa
l/h
10
200
00
20
400
30
600
40
800
50
1000
60
1200
70
1400 1600
l/s
0,40,30,20,10
100%
70%
30%
90%
50%
10%
Pipe connections
Capacity diagram, heating medium pump
Heating medium
from FIGHTER 2020
(VB-out)
Heating medium
to FIGHTER 2020
(VB-in)
FIGHTER 2020
VVM 300
Pipe connection between VVM 300 and
FIGHTER 2020
Heat medium from FIGHTER 2020 (VB-out) connected
to (75), charge connection from FIGHTER 2020 on VVM
300. Heat medium to FIGHTER 2020 (VB-in) connected to
(76), charge connection to FIGHTER 2020 on VVM 300.
Requisite safety equipment connected to FIGHTER 2020
and VVM 300, see section, docking. If FIGHTER 2020 is
not to be connected, (75) and (76) must be plugged and
charge pump (40) disabled. See the section “General infor-
mation for the installer” – “Electric boiler mode”.
Capacity diagram, charge pump
Available pressure, kPa
Flow
Available pressure, kPa
Flow
Max flow: 1700 l/h

18 NIBE VVM 300
Installation
Service
Emptying the hot water heater
To empty the heater proceed as follows:
Disconnect the overflow pipe from the drain connec-
■
tion (79) and connect a hose to a draining pump in-
stead. Where no draining pump is available, the water
can be released into the overflow cup (99).
Open the safety valve (47).
■
Open a hot water tap to let air into the system. If this■
is not enough, undo a pipe coupling (74) on the hot
water side and pull out the pipe.
Draining the heating system
The hot water can be drained off through drain valve (51)
using an R15 (1/2") hose coupling. Remove the cover (80)
from the valve. Now screw on the hose coupling and open
valve (51).
Open safety valve (52) to let air into the system.
Service