Viessmann | VITOCAL 200-G | Operating instructions | Viessmann VITOCAL 200-G Operating instructions

Operating instructions
VIESMANN
for the system user
Compact heat pump
with electric drive, type BWP
VITOCAL 200-G
5592 534 GB
3/2007
Please keep safe.
Safety instructions
For your safety
Please follow these safety instructions closely to prevent accidents and
material losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
!
Boiler room conditions
!
Please note
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These operating instructions are
designed for system users.
Danger
Incorrect work on the system
can lead to life‐threatening
accidents.
Work on electrical equipment
must only be carried out by a
qualified electrician.
In case of fire
Ancillary components, spare and
wearing parts
!
Please note
Components which are not
tested with the system may
lead to system damage, or may
affect its functions.
Installation or replacement
must only be carried out by
qualified personnel.
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Danger
With fire there is a risk of burning.
& Shut down the heating system.
& Use a tested fire extinguisher, class ABC.
Please note
Incorrect ambient conditions
can lead to heating system
damage and can put the safe
operation at risk.
& Ensure ambient temperatures above 0 ºC and below
35 ºC.
& Prevent air contamination by
halogenated hydrocarbons
(e.g. as contained in paints,
solvents or cleaning fluids)
and excessive dust (e.g.
through grinding/polishing
work).
& Avoid continuously high
humidity levels (e.g. through
frequent drying of washing).
2
Index
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Index
Introductory information
Device description ......................................................................................
Your system is preset at the factory .............................................................
Power interruptions.....................................................................................
5
5
6
Where to find the controls
Summary of controls and indicators ............................................................
& Functions ................................................................................................
& Symbols in the display .............................................................................
Operation when using remote control units (accessories) ............................
7
7
8
9
Start-up/shutdown
Starting the heating system.........................................................................
Shutting down the heating system ...............................................................
DHW and central heating ............................................................................
& Scope ......................................................................................................
& Central heating as programmed operation ................................................
& Central heating with standard room temperature ......................................
& Central heating with reduced room temperature .......................................
DHW heating only .......................................................................................
Standby mode ............................................................................................
Manual mode ..............................................................................................
11
11
12
12
12
13
13
14
14
15
Adjusting the room temperature
Setting a permanent room temperature .......................................................
& Setting a standard room temperature .......................................................
& Setting a reduced room temperature ........................................................
& Changing the default settings of the standard and reduced room temperature ............................................................................................................
& Setting switching times (time program u) ................................................
Changing the room temperature for a few days only ....................................
& Selecting the holiday program ..................................................................
Changing the room temperature for a few hours only ...................................
& Selecting the party program .....................................................................
17
18
19
19
21
21
Selecting DHW heating
Selecting constant DHW heating .................................................................
& Selecting a DHW temperature ..................................................................
& Setting switching times (time program) .....................................................
& Setting switching times for the DHW circulation pump (if installed) ............
Enabling once only DHW heating ................................................................
23
23
23
25
26
16
16
16
3
Index
Index (cont.)
Further adjustments
Auxiliary DHW function ...............................................................................
Setting the DHW temperature 2...................................................................
Start optimisation for cylinder heating .........................................................
Stop optimisation for cylinder heating..........................................................
Setting switching times for the heating water buffer cylinder ........................
Start optimisation for heating circuits...........................................................
Modifying the heating circuit characteristics ................................................
Date and time changes (if required).............................................................
Modifying the automatic summer/winter time changeover ............................
Restoring the standard factory settings .......................................................
28
28
29
30
30
32
32
34
35
35
Scanning options
Scanning temperatures...............................................................................
Scanning time programs .............................................................................
Scanning statistics......................................................................................
& Hours run, average runtime and number of starts .....................................
Illustration of the operating conditions in the system design .........................
Fault messages ..........................................................................................
& Acknowledging fault messages ................................................................
& Scanning fault messages .........................................................................
& Skipping fault messages ..........................................................................
37
37
38
38
39
40
40
41
42
What to do if...
The display screen darkens ........................................................................ 44
The display shows the message "Your heat pump is stopped because of
EVU blockage" ........................................................................................... 44
The fault symbol "U" flashes on the display screen ....................................... 44
Indices
Menu structure overview ............................................................................. 45
Repairs
Cleaning ..................................................................................................... 49
Inspection and maintenance ....................................................................... 49
Energy saving tips .................................................................................... 51
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Keyword index .......................................................................................... 52
4
Introductory information
Device description
The Vitocal 200-G is a brine/water heat pump with an electric drive.
& Up to two heating circuits (one with mixer) can be heated.
& Any peak demand can be covered by an integral electric heater (mono-mode
operation), which is available as an accessory.
& The control side of this equipment is prepared for DHW heating using an
external DHW cylinder and for the control of a DHW circulation pump.
& The control of the components required for the natural cooling function is prepared.
Your system is preset at the factory
&
Day and time (CET) were set up in
the factory.
Winter/summer time changeover
will be implemented automatically.
You may change the standard settings
preset at the factory in accordance
with personal requirements.
Note
All data is saved in case of power failure.
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The control unit is preset at the factory.
Your heating system is ready for use
after selecting a specific operating
mode (see from page 12):
& Central heating with standard room
temperature (20 °C) all day.
& Subject to a DHW cylinder being
installed, the DHW will be heated all
day.
Any installed heating water buffer
cylinder will be heated up.
The DHW circulation pump is
switched OFF.
5
Introductory information
Power interruptions
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During any power interruption by the
power supply utility, the display shows
the text in the screenshot.
The control unit restarts in accordance with the selected operating
mode as soon as the utility restores
the power supply.
Subject to the type of power supply,
the interruption may affect either the
heat pump or only the instantaneous
heating water heater (accessories) or
both.
It is technically possible to provide
central heating during power interruptions subject to the heating system
being equipped with a heating water
buffer cylinder. For this, consult your
local heating contractor.
6
Where to find the controls
Summary of controls and indicators
You can change all settings of your heating system, centrally, at the programming unit.
All existing control circuits are displayed as symbols on the display H when the
programming unit flap is closed.
When the programming unit flap is open (see Fig. on page 8), all control circuits
and additional components can be called up by pressing "System settings"
and "Program".
Subject to system version, the following options are offered:
& "Domestic hot water"
& "Heating circuit(s)"
& "Buffer storage" (if installed)
& "Natural cooling" (if installed)
& "Access rights" (only for heating contractors)
Functions
E Programming unit flap (closed)
F Display area for current operating
conditions
G Display area for the selected set
temperatures
H Display area for enabled system
components
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A Display screen with closed programming unit flap E
B "Reduced room temperature"
rotary selector
C "Standard room temperature"
rotary selector
D Operating mode selector
7
Where to find the controls
Summary of controls and indicators (cont.)
K Display screen with open programming unit flap M
L "Standard display" key (for changing between the standard display
and the main menu without opening or closing the programming
unit)
M Menu keys
N Programming unit flap (open)
Symbols in the display
ª
9
°
T
¯
¬
8
Heat pump
DHW cylinder
Heating circuit 1
Heating circuit 2 (mixer circuit)
Natural cooling
Electric heating (if enabled, with
display of stages (1, 2, 3))
a
m
®
­
A
W
Pump
Operation with switching times
Remote control
External default of the operating
mode
Standby
Reduced mode; heating circuit
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The symbols described in the following are only visible with the programming
unit flap closed (see the illustration on page 7). These symbols are not always
displayed, but appear subject to the system version and the prevailing operating
conditions. The respective symbols will move if the compressor or pumps are
running.
Possible displays in areas G and H of the display:
Where to find the controls
Summary of controls and indicators (cont.)
}
μ
§
Standard mode; heating circuit
Fixed value regulator; heating circuit
Reduced mode; DHW
¦
¨
Standard mode; DHW
Heating up to the set DHW temperature 2
Possible displays in area F of the display:
«
4
_
8
5
Fault
Holiday program is active
Party mode is active
Max. DHW volume is active
Frost protection is active
²
(
¡
%
h
Drying buildings is active
Winter mode is active
Natural cooling is active
Summer mode is active
Manual mode is active
Operation when using remote control units (accessories)
One remote control unit can be connected for each heating circuit (accessories).
Vitotrol 200 operating instructions
Note
Never set the operating mode selector of the Vitocal 200 to manual mode when
a remote control unit is connected (see page 00).
Otherwise the fault indicator will illuminate at the remote control.
One heating circuit with remote control
The standard room temperature and
the operating modes are selected at
the remote control unit.
The reduced room temperature is
selected at the Vitocal 200 programming unit (see from page 16).
Two heating circuits, one with remote control
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Your heating contractor will have
determined, which heating circuit is to
be affected by the remote control.
9
Where to find the controls
Operation when using remote control units . . . (cont.)
&
The settings for the heating circuit
without remote control are selected
at the Vitocal 200 programming unit
(see from page 21).
& The settings for the heating circuit
with remote control are made at the
remote control.
Only the reduced room temperature
(see from page 16) is selected at
the Vitocal 200 programming unit.
Two heating circuits, each with remote control
The reduced room temperature is
selected for both heating circuits
together at the Vitocal 200 programming unit (see from page 16).
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The standard room temperature and
the operating modes are selected at
the respective remote control unit.
10
Start-up/shutdown
Starting the heating system
The commissioning and matching of the control unit to local conditions and the
structural characteristics of the building must be carried out by your heating
contractor.
1. Check the system pressure at the
pressure gauge: The system pressure is too low if the indicator points
to the area below 1.2 bar. In such
cases contact your local heating
contractor.
2. Switch ON the power supply, e.g. at
a separate fuse or a main isolator.
3. Switch the system ON/OFF
switch A ON;
after a short while, the selected set
temperatures and the current operating conditions are shown on the
display.
Your system is now ready for use.
Shutting down the heating system
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If you do not want to use your heat
pump (for example during a summer
holiday), select the holiday program
(see page 19) or switch the operating
mode selector to "Standby" (see
page 14).
The system is protected against frost
in standby mode.
Frost protection is disabled and
pumps may seize up, if the equipment
is shut down at the system ON/OFF
switch.
However, in standby mode, all connected pumps, for which this is
required, will be started daily for 10
seconds. This prevents the pumps
seizing up.
11
Start-up/shutdown
DHW and central heating
Subject to two heating circuits being connected, all settings made at the operating mode selector affect both heating circuits.
Central heating
Central heating will only take place during the heating season. The heating season will be determined subject to the outside temperature. The start up limit
(heating limit temperature) that relates to the outside temperature, can be
selected by your heating contractor.
Natural cooling function
The natural cooling function will only be applied when outside temperatures are
high. The start up limit (cooling limit temperature) that relates to the outside temperature, can be selected by your heating contractor.
Scope
The operating modes described in the
following relate to a fully equipped
heat pump system.
Where individual components are not
installed (e.g. DHW cylinder, heating
water buffer cylinder and the natural
cooling function), then the corresponding functions will also not be
available.
Central heating as programmed operation
&
Frost protection for the heat pump,
the DHW cylinder and the heating
water buffer cylinder
& Cooling by means of the natural
cooling function
Central heating in accordance with
the selected switching times and
operating modes (see page 18)
& DHW heating in accordance with
the selected switching times and
operating modes (see from page 23)
12
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&
Start-up/shutdown
DHW and central heating (cont.)
Switch ON
Set the operating mode selector to u.
Different symbols will be shown in
area F of the display (see page 7)
subject to outside temperature and
system configuration.
For an explanation of these symbols,
see page 9.
Central heating with standard room temperature
&
Frost protection for the heat pump,
the DHW cylinder and the heating
water buffer cylinder
& Cooling by means of the natural
cooling function
&
All day central heating with the
standard room temperature (see
from page 16)
& DHW heating in accordance with
the selected switching times and
operating modes (see from page 23)
Switch ON
Set the operating mode selector to s.
Different symbols will be shown in
area F of the display (see page 7)
subject to outside temperature and
system configuration.
For an explanation of these symbols,
see page 9.
Central heating with reduced room temperature
&
Frost protection for the heat pump,
the DHW cylinder and the heating
water buffer cylinder
& Cooling by means of the natural
cooling function
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&
All day central heating with reduced
room temperature
& DHW heating in accordance with
the selected switching times and
operating modes (see from page 23)
13
Start-up/shutdown
DHW and central heating (cont.)
Switch ON
Set the operating mode selector to m.
Different symbols will be shown in
area F of the display (see page 7)
subject to outside temperature and
system configuration.
For an explanation of these symbols,
see page 9.
DHW heating only
&
No cooling by the natural cooling
function
& No central heating
Switch ON
&
DHW heating in accordance with
the selected switching times and
operating modes (see from page 23)
& Frost protection for the heat pump,
the DHW cylinder and the heating
water buffer cylinder
Set the operating mode selector to w.
Different symbols will be shown in
area F of the display (see page 7)
subject to outside temperature and
system configuration.
For an explanation of these symbols,
see page 9.
Standby mode
Switch ON
Frost protection for the heat pump,
the DHW cylinder and the heating
water buffer cylinder
& No central heating
& No cooling by the natural cooling
function
14
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&
Set the operating mode selector to 9.
Different symbols will be shown in
area F of the display (see page 7)
subject to outside temperature and
system configuration.
For an explanation of these symbols,
see page 9.
Start-up/shutdown
Manual mode
Note
Please use this operating mode only
after checking with your local heating
contractor.
&
No cooling by the natural cooling
function
& All mixers are at zero volt, i.e. they
remain in the same position in which
they were set before manual mode
was selected
Switch ON
&
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Unregulated heating of the connected heating circuits with a set
flow temperature of 45 °C
& No DHW heating
Set the operating mode selector to h.
Area F of the display (see page 7)
shows symbol h.
15
Adjusting the room temperature
Setting a permanent room temperature
Observe the following points if you want to activate central heating:
1. s, m or u must be selected at the
operating mode selector.
2. At what time central heating takes
place in programmed mode (u)
with either standard or reduced
room temperature is subject to the
selected switching times (see
page 18).
Setting a standard room temperature
In the delivered condition, the standard room temperature is set to 20 °C with
the rotary selector s set to its centre position. You can adjust this temperature
by ±5 °C at the rotary selector s, without altering the programmed values (see
page 17).
Select the required temperature at the
rotary selector s.
Note
If two heating circuits are installed,
this change will affect both heating
circuits.
After a short delay, the new set temperature will be shown in area G of
the display (see page 7).
Setting a reduced room temperature
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In the delivered condition, the reduced room temperature is set to 14 °C with the
rotary selector m set to its centre position. You can adjust this temperature by
±5 °C at the rotary selector m, without altering the programmed values (see
page 17).
16
Adjusting the room temperature
Setting a permanent room temperature (cont.)
Select the required temperature at the
rotary selector m.
Note
If two heating circuits are installed,
this change will affect both heating
circuits.
After a short delay, the new set temperature will be shown in area G of
the display (see page 7).
Changing the default settings of the standard and reduced
room temperature
In this menu, you can define the temperature when the rotary selectors s and
m are in their centre position.
5. y/x until the required temperature ("Common
temperature" or
"Reduced temperature") is highlighted
(see the screenshot).
1. "System settings".
6. !/1 until the required temperature is selected.
The reduced room
temperature cannot be
set higher than the
standard room temperature.
2. "Program".
7. "OK"
Press the following keys:
to confirm and exit the
menu.
3. "Heating circuit".
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4. "Heating circ. 1"
or
"Heating circ. 2" (if installed).
17
Adjusting the room temperature
Setting a permanent room temperature (cont.)
Setting switching times (time program u)
For central heating, setting the switching times can affect a changeover
between the operating modes "Standby", "Reduced", "Standard", and "Fixed
value".
You can select identical time programs for every day or individual programs
for each day separately.
When setting the switching times, take the response time of your heating system into consideration. Select start and stop times correspondingly earlier or
utilise the "Heating circuit start optimisation" function (see page 32).
Note
From an energy point of view, continuous heating to the standard room temperature is advantageous for heat pumps. For that reason it is the factory default setting.
Consult your local heating contractor before making any modifications.
The height of the bar and the abbreviation indicate the respective operating
mode associated with the displayed time (l.h. top of the display).
Note
With the "Fixed value" operating mode, the system heats to the maximum flow
temperature. This value can be set up by your local heating contractor.
For setting the standard and reduced room temperature for the "Standard" and
"Reduced" operating modes, see from page 16.
1. "System settings".
18
2. "Program".
3. "Heating circuit".
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Press the following keys:
Adjusting the room temperature
Setting a permanent room temperature (cont.)
4. "Heating circ. 1" or
"Heating circ. 2" (if installed).
5. y/x until "T. prog. heat.
circ. " is highlighted.
6. ?
7. DAY
8. >
the menu "T. prog.
heat. circ. " is displayed (see the
screenshot).
until the respective
day or the required
period is highlighted.
9. VALUE
10. SETPT
until the required
operating mode is
shown.
for the period during
which the modified
operating mode
should be effective.
11. Proceed as described in items 7
to 10 for the setting of further
switching times.
12. OK
to confirm and exit the
menu.
until the arrow is positioned at the point
(time), from where the
operating mode
should be changed.
Changing the room temperature for a few days only
If you leave your home for a few days (e.g. on holiday), you have the following
options:
& You can switch OFF central heating completely by setting the operating
mode selector to standby mode 9.
or
& You can set the central heating to minimum energy consumption (e.g. to
prevent houseplants from suffering through cold) by selecting the holiday
program.
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Selecting the holiday program
The holiday program has the following effect:
& Central heating with the selected reduced room temperature (all day)
& Frost protection for the heat pump and the cylinder
& No DHW heating
19
Adjusting the room temperature
Changing the room temperature for a few days . . . (cont.)
Note
In case of two heating circuits, the holiday program affects both heating circuits.
4. {/} until the value to be set
is highlighted.
5. -/+ until the required value
is selected.
Press the following keys:
6. "OK"
press to confirm; the
holiday program is now
set.
or
7. "BACK"
if you do not want to
enable the holiday program.
1. "System settings".
2. "Date and time".
3. "Holidays programm".
Note
Area F of the display (see page 7)
shows symbol 4 when the holiday
program is enabled.
Ending the holiday program early
Press the following keys:
4. "YES" to terminate the holiday
program.
1. "System settings".
5. "OK"
to confirm.
2. "Date and time".
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3. "Holidays programm".
20
Adjusting the room temperature
Changing the room temperature for a few hours only
Selecting the party program
Select the party program, if you want to heat spontaneously at the standard
room temperature (e.g. when guests unexpectedly stay longer in the evening).
The party program enables you to change the room temperature in the short
term, without permanently altering your control settings.
During the party program, the equipment heats with the standard room temperature, independent of the selected operating mode and the selected switching
times. DHW will be heated in accordance with set switching times (see
page 23).
Note
Your heating contractor can program the control unit so that, when the party program is enabled, the DHW cylinder will be heated first.
5. -/+ until the required value
is selected.
6. "OK"
press to confirm; the
party program is now
set.
or
7. "BACK"
if you do not want to
enable the party program.
Press the following keys:
1. "System settings".
2. "Date and time".
Note
Area F of the display shows the symbol _ (see page 7) when the party
program is enabled.
3. "Party program".
4. {/} until the value to be set
is highlighted.
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Ending the party mode early
Press the following keys:
2. "Date and time".
1. "System settings".
3. "Party program".
21
Adjusting the room temperature
Changing the room temperature for a few hours . . . (cont.)
5. "OK"
to confirm.
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4. "YES" to terminate the party program.
22
Selecting DHW heating
Selecting constant DHW heating
All settings for DHW heating described in the following will only be effective, if a
DHW cylinder has been installed.
Observe the following points if you want to heat DHW:
1. Select w, m, s or u at the operating mode selector.
2. When DHW is heated with the
selected temperature, and when
the DHW circulation pump (if
installed) will run depends on the
settings of both switching times
(see page 23 and page 25).
Selecting a DHW temperature
Note
On its own, the heat pump can provide DHW temperatures up to approx.
50 °C. If you require higher DHW temperatures, your local heating contractor
can install an instantaneous heating water heater (accessories) into the heat
pump. This can be regulated by the heat pump control unit.
2. "Program".
3. "Domestic hot water".
4. y/x until "DHW T buffer
storage" is highlighted
(see the screenshot).
5. !/1 until the required temperature is selected.
Press the following keys:
6. "OK"
to confirm and exit the
menu.
1. "System settings".
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Setting switching times (time program)
DHW heating can be activated several times a day by setting the switching
times.
23
Selecting DHW heating
Selecting constant DHW heating (cont.)
You can select identical time programs for every day or individual programs
for each day separately.
When setting the switching times, take the response time of your heating system into consideration. Select start and stop times correspondingly earlier or
utilise the "DHW heating start optimisation" function (see page 29) and the
"Cylinder heating stop optimisation" function (see page 30).
The height of the bar and the abbreviation indicate the respective operating
mode associated with the displayed time (l.h. top of the display).
Note
In the operating mode "2th temp.", the "2nd set temp. DHW" is selected as the
constant DHW temperature (see page 28). The "2nd set temp. DHW" is higher
than the "DHW T buffer storage" (see page 23). This is connected to the "HW
additional option" (see page 28).
Press the following keys:
5. ?
the menu "DHW program temp." is displayed (see the
screenshot).
6. "DAY"
until the respective
day or the required
period is highlighted.
1. "System settings".
2. "Program".
3. "Domestic hot water".
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4. y/x until "DHW program
temp." is highlighted.
24
Selecting DHW heating
Selecting constant DHW heating (cont.)
7. >
until the arrow is positioned at the point
(time), from where the
operating mode
should be changed.
8. "VALUE"
until the required
operating mode is
shown.
9. "SETPT"
for the period during
which the modified
operating mode
should be effective.
10. Proceed as described in items 6
to 9 for the setting of further
switching times.
11. "OK"
to confirm and exit the
menu.
Setting switching times for the DHW circulation pump (if
installed)
Here you can select when and how (constantly or cycling) the DHW circulation
pump should run. In the operating mode "15/5 cycle", the DHW circulation
pump is started every 15 min for 5 min. In the operating mode "30/5 cycle", the
DHW circulation pump is started every 30 min for 5 min.
The height of the bar and the abbreviation indicate the respective operating
mode associated with the displayed time (l.h. top of the display).
Press the following keys:
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1. "System settings".
3. "Domestic hot water".
4. y/x until "Program circ.
pump" is highlighted.
2. "Program".
25
Selecting DHW heating
Selecting constant DHW heating (cont.)
5. ?
the menu "Program
circ. pump" is displayed (see the
screenshot).
6. "DAY"
until the respective
day or the required
period is highlighted.
7. >
until the arrow is positioned at the point
(time), from where the
operating mode
should be changed.
8. "VALUE"
until the required
operating mode is
shown.
9. "SETPT"
for the period during
which the modified
operating mode
should be effective.
10. Proceed as described in items 6
to 9 for the setting of further
switching times.
11. "OK"
to confirm and exit the
menu.
Enabling once only DHW heating
The following function enables you to activate once only DHW heating, without
permanently changing the control settings.
2. "YES"
to confirm; the DHW will
be heated up once
or
3. "BACK" if the once only DHW
heating should not be
activated.
Press the following keys:
Note
Area F of the display shows the symbol "8" (see page 7) when once only
DHW heating is enabled.
1. "Domestic hot water".
Press the following keys:
1. "Domestic hot water".
26
2. "NO"
to terminate the once
only DHW heating
or
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Terminating once only DHW heating
Selecting DHW heating
Enabling once only DHW heating (cont.)
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3. "BACK" if the once only DHW
heating should not be
terminated.
27
Further adjustments
Auxiliary DHW function
As additional protection against bacteria, you can select the "HW additional
option". The first time DHW is heated in any week, the system will heat to the
set temperature 2 (see page 28). At the factory, the set temperature 2 is set to
60 °C.
This temperature can only be achieved if the instantaneous heating water heater (accessories) is installed.
2. "Program".
3. "Domestic hot water".
4. y/x until "HW additional
option" is highlighted
(see the screenshot).
5. "YES/NO" to enable/disable the
function.
Press the following keys:
6. "OK"
to confirm and exit the
menu.
1. "System settings".
Setting the DHW temperature 2
Here, you can select the required temperature for the weekly heating up of the
DHW within the context of the "HW additional option" (see page 28).
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Note
You cannot select a higher DHW temperature 2 than the maximum DHW cylinder temperature. The maximum DHW cylinder temperature can only be changed
by your heating contractor.
28
Further adjustments
Setting the DHW temperature 2 (cont.)
2. "Program".
3. "Domestic hot water".
4. y/x until "2nd set temp.
DHW" is highlighted
(see the screenshot).
5. 1/! to select the required
value.
Press the following keys:
6. "OK"
to confirm and exit the
menu.
1. "System settings".
Start optimisation for cylinder heating
This function will only be available if switching times have been set for the DHW
cylinder (see page 23).
The start optimisation ensures that DHW is available at the required temperature at the beginning of standard mode.
2. "Program".
3. "Domestic hot water".
4. y/x until "Start optimisation" is highlighted
(see the screenshot).
5. "YES/NO" to enable/disable the
function.
Press the following keys:
6. "OK"
to confirm and exit the
menu.
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1. "System settings".
29
Further adjustments
Stop optimisation for cylinder heating
This function will only be available if switching times have been set for the DHW
cylinder (see page 23).
The start optimisation ensures that DHW is available at the required temperature at the end of standard mode.
2. "Program".
3. "Domestic hot water".
4. y/x until "Stop optimisation" is highlighted
(see the screenshot).
5. "YES/NO" to enable/disable the
function.
Press the following keys:
6. "OK"
to confirm and exit the
menu.
1. "System settings".
Setting switching times for the heating water buffer cylinder
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You can set identical switching times for every day or individual times for each
day separately. When setting the switching times, take the response time of
your heating system into consideration. Select start and stop times correspondingly earlier or utilise the "Heating circuit start optimisation" function (see
page 32).
30
Further adjustments
Setting switching times for the heating water buffer . . . (cont.)
The height of the bar and the abbreviation indicate the respective operating
mode associated with the displayed time (l.h. top of the display).
Note
In the "Standard" operating mode, the heating water buffer cylinder will be
heated to the flow temperature selected for the heating circuit.
In the "TOP" operating mode, a smaller volume of heating water will be available
than in the "Standard" operating mode.
In the "Standard" operating mode, the control unit takes the value of the cylinder temperature sensor and the return temperature sensor into consideration. In
the "TOP" operating mode, the control unit only takes the values of the cylinder
temperature sensor into consideration.
In the "Fixed value" operating mode, the heating water buffer cylinder will be
heated to the fixed default temperature. You can utilise this operating mode, for
example to heat up the heating water buffer cylinder with economical night tariff
power.
The heating circuit flow temperature and the fixed value temperature are set up
by your heating contractor.
Press the following keys:
6. >
1. "System settings".
2. "Program".
3. "HW buffer storage".
4. ?
5. DAY
the menu "Prog. HW
buf. stor." is displayed (see the
screenshot).
until the respective
day or the required
period is highlighted.
until the arrow is positioned at the point
(time), from where the
operating mode should
be changed.
7. "VALUE" until the required operating mode is shown.
8. "SETPT" for the period during
which the modified
operating mode should
be effective.
9. Proceed as described in points 5
to 8 for setting further switching
times.
to confirm and exit the
menu.
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10. "OK"
31
Further adjustments
Start optimisation for heating circuits
This function ensures that, at the start of the programmed switching time for
standard mode (see page 18), the required standard set room temperature has
already been reached.
Note
This function is only available if, for the heating circuit concerned, a room temperature sensor or a remote control unit with integral room temperature sensor
is connected.
3. "Heating circuit".
4. "Heating circ. 1"
or
"Heating circ. 2" (if installed).
5. y/x until "Start optimisation" is highlighted
(see the screenshot).
Press the following keys:
6. "YES/NO" to enable/disable the
function.
1. "System settings".
7. "OK"
to confirm and exit the
menu.
2. "Program".
Modifying the heating circuit characteristics
Note
This function is not available, if your
heating contractor has set the control
unit to "Room control".
32
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You can alter the heating characteristics if the room temperature does not meet
your requirements for a longer time. You alter this by changing the slope and
level of the heating curve.
Please observe the modified heating characteristics over several days (if possible, await a major change in the weather) before making further adjustments.
Make short-term adjustments of the room temperature using rotary selector s
(see page 16).
For assistance, use the table on page 33.
Further adjustments
Modifying the heating circuit characteristics (cont.)
5. y/x
until "Heating
curve level" or
"Heat. curve
incli." is highlighted (see the
screenshot).
6. ?
the setting
options for heating curve slope
and level are displayed.
7. "-INCL/+INCL" to change the
heating curve
slope
or
Press the following keys:
1. "System settings".
8. "-LEV/+LEV"
2. "Program".
to change the
heating curve
level
3. "Heating circuit".
4. "Heating circ. 1"
or
"Heating circ. 2" (if installed).
Note
Figure A in the upper dark field as
well as the heating curve
graphic B will change with the
axis designation.
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9. "OK"
Problem
Measures
The living space is too
cold during the heating
season
Adjust the heating curve
slope to the next higher
value (e.g. 0.7)
The living space is too
hot during the heating
season
Adjust the heating curve
slope to the next lower
value (e.g. 0.5)
to confirm and exit
the menu.
Example (figure in
window A of the graphic, page 33)
33
Further adjustments
Modifying the heating circuit characteristics (cont.)
Problem
Measures
Example (figure in
window A of the graphic, page 33)
The living space is too
cold during spring/autumn and during the
heating season
Adjust the heating curve
level to the next higher
value (e.g. 1)
The living space is too
hot during spring/autumn and during the
heating season
Adjust the heating curve
level to the next lower
value (e.g. -1)
The living space is too
cold during spring/autumn, but warm enough
during the heating season
Adjust the heating curve
slope to the next lower
value (e.g. 0.5) and the
level to a higher value
(e.g. 1)
The living space is too
hot during spring/autumn, but warm enough
during the heating season
Adjust the heating curve
slope to the next higher
value (e.g. 0.7) and the
level to a lower value
(e.g. -1)
Date and time changes (if required)
Date and time are factory-set and may be changed manually.
Press the following keys:
1. "System settings".
2. "Date and time".
4. {/} until the value to be set
is highlighted (see the
screenshot).
34
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3. "Date and time".
Further adjustments
Date and time changes (if required) (cont.)
5. -/+ until the required value
is selected.
6. "OK"
7. "BACK"
if you do not want to
save the settings.
to confirm
or
Modifying the automatic summer/winter time changeover
The automatic summer/winter time changeover has been programmed at the
factory.
The changeover will always take place in the night from Saturday to Sunday on
the last weekend in March and October.
3. "Auto. Su./Wi. time".
4. {/} until the value to be set
is highlighted (see the
screenshot).
5. -/+ until the required value
is selected.
6. "OK"
to confirm
or
7. "BACK"
if you do not want to
save the settings.
Press the following keys:
1. "System settings".
2. "Date and time".
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Restoring the standard factory settings
Apart from the option of resetting all settings individually to their standard
values using the "STANDA" key, there is also the "Reset" option. This returns
all settings of the selected function group to their factory settings.
Subject to the actual system configuration, not all eight function groups
("System definition", "Heat pump", "Electric heating", "Internal hydraulics", "Domestic hot water", "Heating circ. 1", "Heating circ. 2" and "HW
buffer storage") may appear in the display.
35
Further adjustments
Restoring the standard factory settings (cont.)
Note
A reset at the user level will only restore the standard factory settings at the
user level.
Contact your heating engineer regarding resetting all parameters.
Press the following keys:
to confirm; the scan for
the next function group
(e.g. "Domestic hot
water") will be displayed
or
3. "NO"
if you do not want to
reset this function
group.
or
4. "BACK"
if you do not want to
reset any function
groups.
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1. "RESET" (see the screenshot).
2. "YES"
36
Scanning options
Scanning temperatures
Here, you can scan temperatures or temperature changes at the internally and
externally connected temperature sensors.
2. "Sensor temperatures" (see the
screenshot).
3. y/x to select the temperature to be scanned.
4. ¤
to display the
temperature rise or
drop per minute)
or
5. ¡
to display the current
temperature.
6. "BACK"
to exit the menu.
Press the following keys:
1. "Information".
Scanning time programs
Here, you can scan, but not change the switching times for the heating circuit
(s), the DHW cylinder, the DHW circulation pump and the buffer cylinder. Should
the switching times be changed, proceed as described on page 18, 23, 25
or 30.
Press the following keys:
1. "Information".
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2. "Switching times".
37
Scanning options
Scanning time programs (cont.)
3. "T. prog. heat. circ. 1"
or
"T. prog. heat. circ. 2" (if
installed)
or
"Temp. program DHW"
or
"Prog. circ. pump" (if installed)
or
"Prog. HW buf. stor." (if installed).
4. >
to start the graphic display. Time is displayed in
the top l.h. corner of the
display; the selected
operating mode to the
right of the graphic (for
an explanation of abbreviations, see
pages 18, 23, 25
and 30).
5. "BACK" to exit the menu.
Scanning statistics
In this menu, you can scan the hours run, the average runtimes and the number
of starts of the following components:
&
&
&
&
"Primary pump"
"Compressor"
& "Secondary pump"
& "E heating 1"
& "E heating 2"
& "Heat. circuit 1 pump"
& "DHW charge pump"
"Circulation pump"
"Natural cooling"
& "Fault message"
Furthermore, you can make enquiries
regarding the fault history (see
page 42).
Hours run, average runtime and number of starts
1. "Information".
2. "Statistics".
3. "Operating hours"
or
"Average operating time"
or
"No. of starts".
38
4. y
to display additional
information regarding
further components,
such as "Natural cooling" or "Fault message".
5. "BACK" to exit the menu.
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Press the following keys:
Scanning options
Illustration of the operating conditions in the system design
Here, you can check current values and the setting of individual components for
the selected system design (see the figure of system design 6).
Press the following keys:
1. "Information".
2. "System overview".
3. "SETPT/ACTU." to change over
between set and
actual values.
Note
Actual values are currently displayed, if the key has the designation "SETPT" (and vice-versa).
4. "BACK"
to exit the menu.
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System design 6 with heating water buffer cylinder and natural cooling
1 Operating display; DHW circulation pump
2 Temperature "Outside"
3 Temperature display; room temperature sensor or remote control;
heating circuit 1
4 Temperature display; room temperature sensor or remote control;
heating circuit 2
5 Operating display; heating circuit
1 pump
39
Scanning options
Illustration of the operating conditions in the system . . . (cont.)
6 Operating display; heating circuit
2 pump
7 Position indication of heating circuit 2 mixer in %
8 Temperature "NC flow"
9 Operating display; primary cooling
circuit pump
qP Temperature "HW buffer storage"
qQ Temperature "Secondary return"
qW Natural cooling mixer position
indication in %
qE "Primary input" temperature
qR Operating display; primary pump
qT Operating display, compressor
qZ Position indication; "Heat/DHW"
mixer in %
qU Operating display; secondary
pump
qI Operating display; electric heating
with output stage indication (1:
3 kW, 2: 6 kW, 3: 9 kW)
qO Operating display; cylinder primary pump
wP Temperature "DHW cylinder bottom"
wQ Temperature "DHW cylinder top"
Fault messages
Faults are captured, displayed and saved by the equipment.
If the system has developed a fault, the fault symbol U will flash in area F of the
display (see page 7) and a red LED flashes in the equipment front panel.
After pressing "Standard display", a maximum of eight faults are displayed in
the order of their priority.
Note
Not in every case is a fault message displayed because the heat pump has
developed a fault.
Fault messages may also be caused by incorrect operating steps or faults on
other system components.
Make a note of the type of fault, (e.g.: "C1 : Net/Compressor"), and notify your
heating contractor accordingly.
This allows the heating contractor to better assess the situation and may save
unnecessary travelling expenses.
Acknowledging fault messages
5592 534 GB
Any active fault messages will be displayed after opening the programming unit
flap.
40
Scanning options
Fault messages (cont.)
These can be acknowledged, as soon as their cause has been removed. After
acknowledging a fault the control unit checks, whether the fault has been
removed. If that is not the case, then the fault will be redisplayed a few seconds
later.
Note
Only with the optional instantaneous heating water heater (accessories):
If the fault "A9: Heat pump" is acknowledged, the system will be heated in
accordance with the selected operating mode (e.g. standard mode) by the
instantaneous heating water heater (with correspondingly high power consumption).
Therefore, use this function only to bridge the time until your heating engineer
arrives.
3. Press "OK" to acknowledge the
highlighted fault message
or
4. Press "ALL" to acknowledge all
fault messages
Note
The fault messages will not be
deleted and can be scanned again.
1. Open the programming unit flap.
All current fault messages (maximum eight) are listed (see the
screenshot).
2. If you do not want to acknowledge
all fault messages, select the relevant fault messages with y/
x.
or
5. Press "TIME", to display the time
the fault occurred.
Pressing "FAULT" returns you to
the fault display.
6. Press "BACK" to exit the menu.
Scanning fault messages
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There are two methods for scanning fault messages.
41
Scanning options
Fault messages (cont.)
Scanning current fault messages
1. Open the programming unit flap.
All current fault messages will be
displayed.
2. Acknowledge the fault messages
(see page 40) or return
with "BACK" to the main menu.
Scanning saved fault messages
3. "Error history" (see the screenshot).
4. "TIME"
to display the time of the
fault occurrence.
5. "FAULT" to return to the fault display.
6. "BACK"
Press the following keys:
1. "Information".
2. "Statistics".
to exit the menu.
Note
The fault messages cannot be
acknowledged in the fault history.
All faults are listed in the order of their
occurrence; the most recent fault is at
the top of the list.
Skipping fault messages
Even if current fault messages are displayed, settings and scans can still be
implemented at the control unit.
5592 534 GB
1. Open the programming unit flap.
All current fault messages are
listed (see the screenshot).
42
Scanning options
Fault messages (cont.)
2. Press "BACK" to exit the user
menu.
You can now make adjustments
and scans.
5592 534 GB
Note
The fault messages will not be
deleted and can be scanned again.
43
What to do if...
The display screen darkens
Cause
Remedy
Power failure/fault in the power supply
The heat pump starts up automatically,
as soon as power is restored or the
fault is rectified
Fuse dropped out/blown
Notify your local contractor
The equipment was switched OFF at
the system ON/OFF switch
Start the equipment (see page 11)
The display shows the message "Your heat pump is stopped
because of EVU blockage"
Cause
Remedy
This is not a fault.
This text is displayed during a power
interruption by your power supply utility (see also page 5).
The heat pump restarts in accordance
with the selected operating mode as
soon as the utility restores the power
supply.
The fault symbol "U" flashes on the display screen
Remedy
Heating system fault
Scan the type of fault (see page 41)
and notify your local heating contractor
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Cause
44
Indices
Menu structure overview
5592 534 GB
Note
Subject to the system equipment level, not all menu items will be made available.
45
Indices
Menu structure overview (cont.)
5592 534 GB
A see the next screen
46
Indices
Menu structure overview (cont.)
5592 534 GB
Note
Subject to the system equipment level, not all menu items will be made available.
47
Indices
Menu structure overview (cont.)
5592 534 GB
A see the previous screen
48
Repairs
Cleaning
This equipment may be cleaned with
a commercially available domestic
cleaning agent (non-scouring).
Inspection and maintenance
Inspection and maintenance of your heating system is made compulsory by the
Energy Savings Order [Germany].
Regular maintenance ensures a trouble-free, energy-efficient and environmentally responsible heating operation. For this, we strongly advise you to arrange
an inspection and maintenance contract with your local heating contractor.
DHW cylinder
DIN 1988-8 and EN 806 prescribe that
maintenance and cleaning should be
carried out no later than two years
after commissioning and thereafter in
regular intervals.
Only a qualified heating contractor
should clean the inside of a DHW
cylinder and the DHW connections.
Refill any water treatment equipment
(e.g. a lock or injection system) in
good time if such equipment is
installed in the cold water supply of
the DHW cylinder. Observe the manufacturer's instructions.
Regularly backflush and maintain any
dirt traps or filters that may be
installed in the cold water supply of
the DHW cylinder.
Safety valve (DHW cylinder)
5592 534 GB
Check the safety valve function every
six months by venting, or have it
checked by your heating contractor.
The valve seat may become contaminated (see the valve manufacturer's
instructions).
49
Repairs
Inspection and maintenance (cont.)
Potable water filter (if installed)
5592 534 GB
For reasons of hygiene
& renew filter insert on non-backflushing filters every six months (visual
inspection every two months),
& on backflushing filters, backflush
every two months.
50
Energy saving tips
Energy saving tips
Along with using a modern heating system, you can save additional energy by
your own actions.
The following steps will help you with this:
&
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Correct airing:
Briefly open windows 1 fully and at
the same time close thermostatic
radiator valves 2.
& Never overheat:
endeavour to achieve a room temperature of 20 °C; every degree of
room temperature reduction saves
up to 6% of your heating bills.
& Close roller shutters (where
installed) at dusk.
& Set thermostatic valves 2 correctly.
& Never cover radiators 3 or thermostatic valves 2.
& Set the DHW temperature of the
DHW cylinder 5 at the control
unit 4.
& Activate the DHW circulation pump
only for those times (via switching
times at the control unit), when
DHW is likely to be drawn (e.g. in
the morning and evening).
& Controlled DHW consumption:
a shower generally uses less
energy than a full bath.
51
Keyword index
Keyword index
B
Buffer cylinder . . . . . . . . . . . . . . . . . 5, 6, 12, 30
C
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Changing switching times
& for central heating . . . . . . . . . . . . . . . . . . . . . 18
& for DHW circulation . . . . . . . . . . . . . . . . . . . 25
& for DHW heating . . . . . . . . . . . . . . . . . . . . . . . . 23
& for the heating water buffer cylinder
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Changing the date. . . . . . . . . . . . . . . . . . . . . . . . 34
Changing the time . . . . . . . . . . . . . . . . . . . . . . . . 34
Changing time programs
& for central heating . . . . . . . . . . . . . . . . . . . . . 18
& for DHW circulation . . . . . . . . . . . . . . . . . . . 25
& for DHW heating . . . . . . . . . . . . . . . . . . . . . . . . 23
& for the heating water buffer cylinder
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49, 50
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . 12, 13
D
DHW cylinder . . . . 5, 21, 23, 26, 28, 29,
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30, 37, 49, 51
DHW temperature . . . . . . . . . . . . . . . . . . . . . . . . 23
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Display screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
E
Electric heater element. . . . . . . . . . . . . . . . . 23
Electric heating . . . . . . . . . . . . . . . . . . . . . . . 23, 28
Emergency mode . . . . . . . . . . . . . . . . . . . . . . . . . 15
Emergency program . . . . . . . . . . . . . . . . . . . . . 35
Equipment
& starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
& stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
52
F
Fault history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Fault messages . . . . . . . . . . . . . . . . . . . . . . 40, 41
Fault messages
& acknowledging . . . . . . . . . . . . . . . . . . . . . . . . . . 40
& scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
& skipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
H
Heating season. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Heating water buffer cylinder 5, 6, 12,
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
I
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Instantaneous heating water heater. . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23, 28
M
Main isolator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
49
15
45
N
Natural cooling . . . . . . . . . . . . . . . . . . . . . . . 12, 13
O
Once only DHW heating . . . . . . . . . . . . . . . 26
Operating condition . . . . . . . . . . . . . . . . . . . . . . 39
Operating mode selector 7, 13, 14, 15,
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Overview
& of the menu structure . . . . . . . . . . . . . . . . . 45
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A
Auxiliary DHW function. . . . . . . . . . . . . . . . . 28
Keyword index
Keyword index (cont.)
P
Party program . . . . . . . . . . . . . . . . . . . . . . . . . . . 9, 21
Potable water filter . . . . . . . . . . . . . . . . . . . . . . . 50
Power interruption. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power interruption by the power
supply utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power supply utility . . . . . . . . . . . . . . . . . . . . . . . . 6
Power-OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6, 44
Presetting the system . . . . . . . . . . . . . . . . . . . . . 5
Pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Programming unit . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Programming unit flap . . . . . . . . . . . . . . . . . . . . 7
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R
Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Restarting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Room temperature . . . . . . . . . . . . . . . . . . . . 5, 13
Room temperature
& adjusting the rotary selector for . . . 7
& default setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
& reduced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14, 16
& standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13, 16
S
Safety valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Saving energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Saving heating energy. . . . . . . . . . . . . . . . . . 19
Scanning hours run . . . . . . . . . . . . . . . . . . . . . . 38
Scanning runtimes . . . . . . . . . . . . . . . . . . . . . . . 38
Scanning sensor temperatures . . . . . 37
Scanning starts (number of) . . . . . . . . . . 38
Scanning switching times . . . . . . . . . . . . . 37
Scanning temperatures . . . . . . . . . . . . . . . . 37
Scanning time programs . . . . . . . . . . . . . . . 37
Selecting a temperature
& DHW temperature . . . . . . . . . . . . . . . . . . . . . 23
Selecting the holiday program . . . . . . . 19
Selecting the operating mode
& Central heating . . . . . . . . . . . . . . 12, 13, 16
& Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12, 13
& DHW heating . . . . . . . . . . . 12, 13, 14, 23
& Frost protection . . . . . . . . . . . . . . 12, 13, 14
& Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
& Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Selecting the temperature
& reduced room temperature . . . . . . . . . 16
& standard room temperature . . . . . . . . 16
Standard room temperature . . . . . . . . . . . . 5
Standard settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Standard settings, reset to . . . . . . . . . . . . 35
Standby mode . . . . . . . . . . . . . . . . . . . 11, 14, 19
Standby operation. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38, 42
Summer time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 35
Switching OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Switching times . . . . . . . 8, 12, 14, 16, 51
System design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
System ON/OFF switch . . . . . . . . . . . . . . . . . 11
System pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
System
& shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
& starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
T
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
53
Keyword index
Keyword index (cont.)
5592 534 GB
W
Winter time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 35
54
55
5592 534 GB
56
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: +44 1952 675000
Fax: +44 1952 675040
E-mail: info-uk@viessmann.com
chlorine-free bleached paper
Printed on environmentally friendly,
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Telephone: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
Subject to technical modifications.
Contact your local contractor if you have any questions regarding the maintenance and repair of your system. You may, for example, find local contractors
on the internet under www.viessmann.com.
5592 534 GB
Your contact
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