Nibe F205P User manual

InstallatIon and MaIntenance InstructIons
NIBETM F205P
1 x 230 V uK
Mos GB 1124-1
nIBetM F205P
031977
LEK
2
31
20 100
40 80
60
°C
0 120
T G

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1
F205P
Contents
For home Owners
General __________________________________ 2
System description _______________________ 3
System diagram ___________________________________ 3
Principle of operation ______________________________ 3
Front panel ______________________________ 4
Functions on the front panel ______________ 4
Front panel, supplied clock thermostat _____ 5
Front panel’s functions ____________________ 5
Settings _________________________________ 6
Maintenance routines ____________________ 7
General __________________________________________ 7
Cleaning the air filter_______________________________ 7
Cleaning the ventilation devices______________________ 8
Pressure gauge____________________________________ 8
Checking the safety valves __________________________ 8
Dealing with malfunctions ________________ 9
Low temperature or a lack of hot water _______________ 9
Low or a lack of ventilation _________________________ 9
Low room temperature _____________________________ 9
High room temperature ____________________________ 9
Switch position ”3” _______________________________ 9
Cleaning the fan __________________________________ 9
Indications on the display __________________________ 10
Lamp “Compressor is operational/alarm” is flashing____ 10
Lamp “Defrosting is operational/check filter” is flashing 10
Lamp ”Defrosting is operational/check filter” is litted___ 10
Resetting the pressostats __________________________ 10
For the Installer
General information for the installer ______ 11
Transport and storage _____________________________ 11
Handling ________________________________________ 11
Installation ______________________________________ 11
Hard water areas _________________________________ 11
Inspection of the installation _______________________ 11
Maximum boiler and radiator volumes _______________ 11
Installing the clock thermostat _____________________ 12
Pipe connections ________________________ 13
General _________________________________________ 13
Pump and pressure drop diagram _________ 14
Cleaning the system _____________________ 14
Tap water connection ____________________ 14
Ventilation connection ___________________ 15
Ventilation flow __________________________________ 15
Kitchen duct_____________________________________ 15
Adjustment______________________________________ 15
Fan diagram _____________________________________ 15
Duct installation__________________________________ 15
Electrical connections ____________________ 16
Connection______________________________________ 16
Setting the fan capacity ___________________________ 16
Connecting fan switch ____________________________ 16
Circulation pump control __________________________ 17
Current, fuse ____________________________________ 17
Immersion heater_________________________________ 17
Connecting the clock thermostat____________________ 17
Commissioning and adjusting ____________ 18
Preparations _____________________________________ 18
Venting the heating system ________________________ 18
Temperature levels________________________________ 20
Hot water temp. _________________________________ 20
Periodic increase _________________________________ 20
Hot water prioritising _____________________________ 20
Service _________________________________ 21
Electrical circuit diagram _________________ 26
List of components ______________________ 29
Dimensions _____________________________ 30
Dimensions and setting-out coordinates______________ 30
Enclosed kit _____________________________ 31
Accessories _____________________________ 31
Technical Data ___________________________ 32
Benchmark checklist _____________________ 34

2F205P
For Home Owners
General
In order to get the ultimate benefit from your heat pump NIBETM F205P you should read through the
For Home Owners section in this Installation and Maintenance Instruction.
F205P is an exhaust air heat pump. This means it utilises energy in ventilation air and uses this energy
for hot water and heating the house. A microprocessor ensures that the heat pump always works effi-
ciently.
For the installation engineer: Please, hand over to the home owner this manual after
finalised installation.
To be filled in when the heat pump has been installed
General
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person 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 2011.
Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are
provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with
the manufacturers instructions by competent persons and that it meets the requirements of the appropriate Building
Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should
be provided to the customer for future reference.
Installers are required to carry out the installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is av-
ailable from the Heating and Hotwater Industry Council who manage and promote the Scheme.Visit www.centralheating.co.uk for more information.
Manufacter:
NIBE AB
Box 14
Järnvägsgatan 40
285 21 MARKARYD
SWEDEN
Maximum water
supply pressure
16 bar
Immersion heater R50 / 3000W /
230 V
Operating pressure, tap water 6 bar
Expansion vessel, tap water, char-
ge pressure
3,5 bar
Expansion vessel, heating water,
charge pressure
0,5 bar
Pressure reduction valve, setting 3,5 bar
Volume, water heater 170 litres
Mass, unit, filled with water 435 kg
Maximum primary working
pressure (heating side)
2,5 bar
Set opening pressure of
temperature and pressure valve
7 bar
Set opening pressure relief valve 6 bar
Set opening, temperature limiter,
immersion heater
88 °C
Set opening, temerature limiter,
compressor
88 °C
Heating up time from
15 °C to stop temperature for
compressor
7 h 8 min
Re-heating time, 70 % of
total volume (only compressor
working)
4 h 50 min
Benchmark checklist completed
Exhaust air flow and selected fan curve, high speed (Knob R51)
l/s m3/h ....................... Fan curve .............................
Exhaust air flow and selected fan curve, normal speed (Knob R52)
l/s m3/h ....................... Fan curve .............................
Setting the dip switch (S1) on the circuit board (34)
ON: 4 3 2 1
Heat emitter
Radiator .....................................
Underfloor heating coil
Date_________ Signed__________________________________

3
F205P
For Home Owners
System description
Principle of operation
F205P comprises an electric boiler with a stainless steel
water heater and a heat pump which recovers energy
from the ventilation air. The recovered energy is supplied
to the heat pump. The heat pump must be installed in a
ventilation system intended for mechanical exhaust air. A
DC fan is used in F205P.
The output of the immersion heater is 3 kW. When the
exhaust air at room temperature passes through the evapo-
rator, the refrigerant evaporates because of its low boiling
point. In this way the heat in the air is transferred to the
refrigerant.
The refrigerant is then compressed in a compressor, caus-
ing the temperature to rise considerably.
The warm refrigerant is led to the condenser. Here the
refrigerant gives off its heat to the boiler water, so that the
temperature of the the refrigerant drops and its phases
changes from gas to liquid. The refrigerant then goes via a
filter to the expansion valve, where the pressure drops and
the temperature is lowered further.
The refrigerant has now completed its circulation and re-
turns to the evaporator.
System description
System diagram
LEK
C
When the room air has
passed through the heat
pump it is discharged. The
temperature of the air has
been significantly reduced as
the heat pump has extracted
the energy in the room air.
G
The air from the kitchen
fan goes directly out into
a separate duct.
B
The warm room
air is fed to F205P
D
F205P supplies the house
with both hot water and
room heating.
E
Outdoor air is drawn into the house.
A
The warm room air is
drawn into the air duct
system.
F
Air is transported from
rooms with outdoor
air devices to rooms
with exhaust air
devices.
FrånluftAvluft
FrånluftAvluft
FrånluftAvluft
EJ ÄNDRAD
Extract air Exhaust air

4F205P
For Home Owners
Front panel
Front panel
Thermometer
Here the boiler temperature is indicated . The value
depends on the cut-out temperature of the immer-
sion heater, the set value for the compressor cut-out
temperature and the hot water taps.
A
Pressure gauge
Here the pressure of the radiator circuit is indicated .
The scale marks go from 0 - 4 bars. Normal pressure
is 0,5 - 1,5 bar.
B
Functions on the front panel
Indicators lamps
Top lamp
Lit Compressor is running.
Flashing Alarming for tripped pressostates or in-
dicating standby mode (Compressor
blocked).
Not lit Compressor is not running.
Midmost lamp
Lit Defrosting is operational.
Flashing Air filter to be cleaned.
Not lit -
Lower lamp
Lit Immersion heater is in operation.
Flashing -
Not lit Immersion heater is not in operation.
D
C
F
E
Switch
with 4 positions 0 - 1 - 2 - 3:
0 Heat pump off.
1 Fan is operational. Compressor and circulation
pump operational on demand.
2 Fan is operational. Compressor, immersion
heater and circulation pump operational on de-
mand.
3 Standby mode. Fan is operational. Compressor
is not operational. Immersion heater and circu-
lation pump operational on demand.
Switch
Pressure gauge
Thermometer Indicator lamps
Hot water priority (hidden) Circulation pump (hidden)
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ABCD
FE
Hot water prioritising (hidden)
with 3 positions “Auto” - “1” - “0”:
Auto Hot water prioritising Continuously acti-
vated (same function as "1")
1 Hot water prioritising continuously acti-
vated.
0 Hot water prioritising not activated.
Circulation pump (hidden)
with 2 positions “Auto” - “1”:
Auto The circulation pump is controlled on and
off by the control system or clock thermo-
stat.
1 Circulation pump in continuous operation.

5
F205P
For Home Owners
Front panel, clock thermostat
Front panel, supplied clock thermostat
On/Off
Press “ ” once to switch off the thermostat, press
again to restart.
A
Operating mode
The operating mode that the heat pump is to use is
selected here.
Auto
M
: In this mode the heat pump operates ac-
cording to your own settings. You set which temper-
ature you want indoors during day and night.
Day
M
: In this mode you get the setting for day
temperature for the entire day.
Night
M
: In this mode you get the setting for night
temperature for the entire day.
Manual: (no symbol) In this mode the set tempera-
tures are not used. Press
M
or
M
to increase or
decrease the temperature indoors.
B
Front panel’s functions
Display
First row: Week day.
Second row: Operating mode day
M
, operating
mode auto
M
, heating on
M
.
Third row: Actual indoor temperature (RT) or set in-
door temperature (SET), clock
Fourth row: Actual fan speed, operating mode
night
M
.
Timer
Set current time and date here.
Increase/decrease
These buttons are used to increase or decrease a
value.
D
CF
E
The indoor temperature is regulated using a room thermostat. When the temperature in the accommodation is the same as
the temperature set on the room thermostat, the circulation pump in the heat pump stops.
To set different intervals with a temperature change, we recommend the supplied clock thermostat. For instructions on how
to set times and temperatures, see section "Settings".
M
Increase/decrease
Fan speed
On/Off Operating mode Timer
Display
F
E
D
C
B
AFirst row
Second row
Third row
Fourth row
Fan speed
Select the fan speed here: high
M
, normal
M
and
auto (no symbol).
If normal
M
or high
M
is selected, you return to
the previous setting after one hour.
If normal
M
or auto is selected, the fan runs at low
speed when the compressor has stopped and rotates
up to speed when the compressor is in operation.

6F205P
For Home Owners
Settings
Set actual time and weekday
1. Press the timer button once
M
. The first two digits in
the clock start to flash.
2. Use
M
or
M
to set the hours. Save the settings by
pressing the timer button once.
3. Use
M
or
M
to set the minutes. Save the settings by
pressing the timer button once.
4. Use
M
or
M
to set the weekday. Save the settings by
pressing the timer button once.
Changing the indoor temperature
A water borne heating system has a certain inertia. This
means that it can take several hours from when the
change was made until the desired temperature in the ac-
commodation is achieved. The size of the house, outdoor
temperature, hot water usage during the time etc. affects
how long the change takes.
E.g. You change the 05:00 setting of the clock thermostat
from 17 °C to 20°C. F205P starts to increase the tempera-
ture but it can take several hours for the heat pump to
achieve the desired change.
At 08:00 you change the setting again, from 20 °C to
17°C. The heat pump then starts to send out cooler wa-
ter to the heating system but it can take several hours be-
fore the water has cooled enough to achieve the desired
temperature.
Programme operating mode
Start by making settings for Monday to Friday:
SET 1 means period 1, SET 2 means period 2.
1. Hold in the timer button
M
until SET 1 appears in the
display.
2. Set the time at which you want period 1 to start to
apply. Set the time in the same way as you set the
clock previously, using
M
or
M
and the timer button.
3. Set the temperature you want indoors during period
1 by pressing
M
or
M
. Save the settings by pressing
the timer button once.
4. Set the time at which you want the period 1 setting
to stop being applied. Set the time in the same way
as you set the clock previously, using
M
or
M
and the
timer button.
5. Set the temperature you want indoors between peri-
ods 1 and 2 by pressing
M
or
M
. Save the settings by
pressing the timer button once.
6. SET 2 now appears in the display. Set the time at
which you want period 2 to start to apply. Set the
time in the same way as you set the clock previously,
using
M
or
M
and the timer button. The temperature
will be the same as you selected in period 1.
7. Set the time at which you want the period 2 setting
to stop being applied. Set the time in the same way
as you set the clock previously, using
M
or
M
and the
timer button.
Now make settings for Saturday and Sunday:
1. This is done in the same way as setting the tempera-
tures for weekdays (repeat steps 2-7).
Change operating mode
Press operating mode button (M) to switch between auto,
day, night and manual mode. Confirm using the timer but-
ton
M
.
If you want one indoor temperature during the daytime
and another indoor temperature during the night select
operating mode auto
M
.
If you want the day temperature for 24 hours select
M
and if you want the night temperature for 24 hours select
M
.
To change temperature at any point during the day, select
the manual mode. If the temperature in the accommoda-
tion is too low or too high, press
M
or
M
to increase or
decrease the temperature. Approximately 30 seconds after
the last button push, the thermostat returns to showing
the actual room temperature.
°C
Tid
17
18
19
20
08:00 09:00 10:00 11:00 12:0004:00 05:00 06:00 07:00
Inställd rumstemperatur
Verklig rumstemperatur
Settings
Time
Set room temperature
Actual room temperature
°C
17
18
19
20
12 14 16 18 20 22 2404 06 08 10
Inställd rumstemperatur
Tid
SET 1 SET 2
Time
Set room temperature

7
F205P
For Home Owners
Maintenance routines
General
The heat pump and its ventilation ducting require some
regular maintenance when the following points should be
checked.
The numbers in brackets refer to the section ”Component
locations”.
Cleaning the air filter
The heat pump air filter (63) should be cleaned regularly,
about four times a year.
1. Set the switch (8) to “0”.
2. The upper service cover is opened by pulling the lower
section outwards. The cover can then be lif-ted off.
3. Pull out the filter cassette (78).
4. Take out the filter and shake/vacuum off any dirt. Do
not use water or other liquids for cleaning.
5. Check that the filter is not damaged. New original fil-
ters can be ordered from a Nibe distributor.
6. Re-assembly takes place in the reverse order.
The cleaning time intervals vary depending on the amount
of dust in the exhaust air. Each third month an indicator
lamp “Midmost lamp” flashing to reminds about cleaning
the air filter. Note that the time will be set to zero by set-
ting the switch to “0”.
LEK
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2
1bar 3
04
T
G
Maintenance routines

8F205P
For Home Owners
Maintenance routines
Checking the safety valves
F205P has three safety valves, one for the heating system
and two for the water heater.
The heating system safety valve (52) must be completely
tight, but the hot water safety valve (47) may release some
water after hot water has been used. This is because the
cold water which enters the water heater to replace the
hot water expands when heated, causing the pressure to
rise and the safety valve to open.
Safety valve (104) does not normally release water.
The safety valves must be checked regularly. Check one
valve at a time as follows:
1. Open the valve.
2. Check that water flows through the valve.
3. Close the valve.
4. 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”.
Cleaning the ventilation devices
The building’s ventilation devices should be cleaned regu-
larly with a small brush to keep the correct ventilation.
The device settings must not be changed.
Note! If you take down more than one ventilation device
for cleaning, do not mix them up.
Check that the ventilation opening (84), behind the lower
front cover, is not blocked. Clean if necessary.
Pressure gauge
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Art.nr. 611830
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( )
( )
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LE
K
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°C
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LEK
LEK
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( )
Auto
1
2
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04
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Auto
1
2
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04
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Gammal
( )
Auto
1
2
31
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60
C
0 120
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04
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Alternativ 2Alternativ 1
LEK LEK
( )
Auto
1
2
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04
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( )
Auto
1
2
31
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60
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1bar 3
04
T G
Gammal
LEK
LEK
LEK
( )
Auto
1
2
31
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40 80
60
C
0 120
T
G
2
1bar 3
04
T
G
( )
Auto
1
2
31
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40 80
60
C
0 120
T G
2
1bar 3
04
T G
( )
Auto
1
2
31
20 100
40 80
60
C
0120
T G
2
1bar 3
04
T G
Jättegammal modell
Gammal modell
Åter-
ledning
radiatorer
8
31 32
94
86
30
Fram-
ledning
radiatorer
9
6
11
18
59
16
17
44
70
5
78
27
36
33
20
58
108
52
96
109
97
42
62
48
63
87
65
99
Åter-
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74 150
LEK
LEK
LEK
( )
Auto
1
2
31
20 100
40 80
60
C
0 120
T G
2
1bar 3
04
T G
( )
Auto
1
2
31
20 100
40 80
60
C
0 120
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2
1bar 3
04
T G
( )
Auto
1
2
31
20 100
40 80
60
C
0120
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2
1bar 3
04
T G
Jättegammal modell
Gammal modell
Åter-
ledning
radiatorer
8
31 32
94
86
30
Fram-
ledning
radiatorer
9
6
11
18
59
16
17
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70
5
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27
36
33
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42
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95
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86
30
9
6
11
18
59
16
44
5
19
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27
36
33
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52
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42
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47
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104
LEK
LEK
LEK
( )
Auto
1
2
31
20 100
40 80
60
C
0 120
T G
2
1bar 3
04
T G
( )
Auto
1
2
31
20 100
40 80
60
C
0 120
T G
2
1bar 3
04
T G
( )
Auto
1
2
31
20 100
40 80
60
C
0120
T G
2
1bar 3
04
T G
Jättegammal modell
Gammal modell
Åter-
ledning
radiatorer
8
31 32
94
86
30
Fram-
ledning
radiatorer
9
6
11
18
59
16
17
44
70
5
78
27
36
33
20
58
108
52
96
109
97
42
62
48
63
87
65
99
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51
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30
9
6
11
18
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16
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5
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27
36
33
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47
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LEK
LEK
LEK
( )
Auto
1
2
31
20 100
40 80
60
C
0 120
T G
2
1bar 3
04
T G
( )
Auto
1
2
31
20 100
40 80
60
C
0 120
T G
2
1bar 3
04
T G
( )
Auto
1
2
31
20 100
40 80
60
C
0120
T G
2
1bar 3
04
T G
Jättegammal modell
Gammal modell
Åter-
ledning
radiatorer
8
31 32
94
86
30
Fram-
ledning
radiatorer
9
6
11
18
59
16
17
44
70
5
78
27
36
33
20
58
108
52
96
109
97
42
62
48
63
87
65
99
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ledning
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41
35
51
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53
1
k.v.
v.v.
Blaha blaha
och annat
trams
Åter-
ledning
radiatorer
Blaha blaha
och annat
trams
103
49
88
25
104
148
73
95
Åter-
ledning
radiatorer
8
31 32
86
30
9
6
11
18
59
16
44
5
19
78
27
36
33
58
108
52
96
109
97
42
62
48
63
87
65
99
k.v.v.v.
41
355180507974 47
43
1
k.v.
v.v.
Blaha blaha
och annat
trams
Åter-
ledning
radiatorer
Blaha blaha
och annat
trams
49
88
25
104
73
95
19
47
66 149 151
74 150
52
The pressure gauge shows the pressure in the heating sys-
tem. The pressure should be between 0.5 and 1.5 bar.