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Operating instructions
for the system user
Viesmann
Heat pump control unit Vitotronic SPS, type 2.0
VITOTRONIC SPS
5838122 GB 10/2019
Please keep safe.
2
Please follow these safety instruc-
tions closely to prevent accidents
and material losses.
Safety instructions explained
Danger
This symbol warns against the risk
of injury.
!
Please note
This symbol warns against the risk
of material losses and environmen-
tal pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These operating instructions are inten-
ded for system users.
This appliance can also be operated by
children aged 8 and older, as well as by
individuals with reduced physical, sen-
sory or mental faculties or those lacking
in experience and knowledge, provided
such individuals are supervised or have
been instructed in the safe use of this
appliance as well as in any risks arising
from it.
!
Please note
Supervise children in the proximity
of the appliance.
■
Never permit children to play with
the appliance.
■
Cleaning and user maintenance
must never be carried out by
unsupervised children.
Safety instructions for working on the system
Appliance connection
■
The appliance may be connected and
commissioned only by authorised con-
tractors.
■
Observe the specified electrical con-
nection requirements.
■
Modifications to the existing installation
may be carried out only by authorised
contractors.
Danger
Incorrectly executed work on the
system can lead to life threatening
accidents.
Work on electrical equipment may
only be carried out by a qualified
electrician.
Safety instructions
For your safety
5838122
3
Work on the appliance
■
All settings and work on the appliance
must be carried out as specified in
these operating instructions.
Further work on the appliance may be
carried out only by authorised contrac-
tors.
■
Never open the appliance.
■
Never remove casings.
■
Never change or remove attachments
or fitted accessories.
■
Never open or tighten pipe connec-
tions.
Danger
Hot surfaces can cause burns.
■
Never open the appliance.
■
Never touch the hot surfaces of
uninsulated pipes and fittings.
Auxiliary components, spare and
wearing parts
!
Please note
Components that were not tested
with the system may cause system
damage, or may affect its functions.
Have all installation or replacement
work carried out exclusively by
heating contractors.
Safety instructions for operating the system
Damage to the appliance
Danger
Damaged appliances pose a safety
hazard.
Check the appliance for external
damage.
Do not commission the appliance if
damaged.
What to do if the system develops a
fault
!
Please note
Fault messages indicate system
faults. If not rectified, faults can
cause irreparable damage to the
system.
Do not acknowledge fault mes-
sages several times in quick suc-
cession. Inform your heating con-
tractor so the cause can be ana-
lysed and the fault rectified.
If there is a fire
Danger
Fires create a risk of burns.
■
Switch the system off.
■
Use a tested fire extinguisher,
class ABC.
Conditions for siting
Danger
Easily flammable liquids and mate-
rials (e.g. naphtha/petrol, solvents,
cleaning agents, paints or paper)
can cause deflagration and fire.
Never store or use such materials
in the boiler room or in direct prox-
imity to the heating system.
Safety instructions
For your safety (cont.)
5838122
4
!
Please note
Incorrect ambient conditions can
result in system damage and can
put safe operation at risk.
■
Maintain the permissible ambient
temperatures as detailed in these
operating instructions.
■
Appliance for indoor installa-
tion:
–
Avoid air contamination through
halogenated hydrocarbons (e.g.
as contained in paints, solvents
and cleaning agents).
–
Avoid continuously high humidity
levels (e.g. through continuous
drying of washing).
Safety instructions
For your safety (cont.)
5838122
5
1. Liability ................................................................................................................ 7
2. Introductory information Symbols ................................................................................................. 8
Terminology ........................................................................................... 8
Intended use .......................................................................................... 8
Product information ................................................................................ 9
Commissioning ...................................................................................... 9
3. Control unit operation Operating principles ............................................................................... 10
Home screen: Displays and settings ..................................................... 10
■
Home screen displays ........................................................................ 10
General buttons ..................................................................................... 11
Overview of the Main menu ................................................................... 11
■
Menus available in the Main menu ..................................................... 11
4. Settings Setting the operating level ..................................................................... 12
■
User login ........................................................................................... 12
■
User logout ......................................................................................... 12
Setting the temperature ......................................................................... 12
■
Setting temperatures for the heat source ........................................... 12
■
Setting the temperatures for the heat sink .......................................... 13
Setting time programs ............................................................................ 14
■
Setting a 7-day program for a cooling circuit ...................................... 14
■
Setting a 7-day program for a heating circuit ...................................... 15
Setting cooling curves and heating curves ............................................ 15
■
Setting cooling curves for the heat source ......................................... 15
■
Setting heating curves for the heat sink ............................................. 16
Setting day/night changeover ................................................................ 16
■
Setting day/night changeover for the heat source .............................. 16
■
Setting day/night changeover for the heat sink .................................. 16
Setting high temperature maintenance .................................................. 17
Setting DHW circulation ......................................................................... 17
Heating the DHW cylinder at certain times ............................................ 18
Setting the time and date ....................................................................... 18
Setting email addresses for messages .................................................. 18
Setting the language .............................................................................. 19
5. Checks Calling up information ............................................................................ 20
■
Information in the function area .......................................................... 20
■
Information in the menu ...................................................................
20
Checking messages .............................................................................. 20
6. Switching on and off Switching the heat pump on .................................................................. 22
Switching the heat pump off .................................................................. 22
■
Without interrupting the power supply ................................................ 22
■
Shutdown (without frost protection) .................................................... 22
7. What to do if...? Rooms are too cold ................................................................................ 23
Rooms are too hot ................................................................................. 23
There is no hot water ............................................................................. 23
The DHW is too hot ............................................................................... 23
Nothing shown on the display ................................................................ 23
Fault symbol is flashing ....................................................................
24
8. Maintenance Cleaning and renovations ...................................................................... 25
Inspection and maintenance .................................................................. 25
DHW cylinder ......................................................................................... 25
■
Safety valve (DHW cylinder) ............................................................... 25
■
Potable water filter (if installed) .......................................................... 25
Damaged cables/lines ........................................................................... 25
Index
Index
5838122
6
9. Appendix Menu overview ....................................................................................... 26
■
Overview of the navigation area ......................................................... 26
■
Overview of the home screen ............................................................. 27
■
Overview of the Main menu ................................................................ 27
Terminology ........................................................................................... 32
Refrigerant ............................................................................................. 34
Information on disposal .......................................................................... 34
■
Disposal of packaging ........................................................................ 34
■
Final decommissioning and disposal of the heating system ............... 34
10. Keyword index ................................................................................................................ 35
Index
Index (cont.)
5838122
7
No liability is accepted for loss of profit, unattained
savings, or other direct or indirect consequential losses
resulting from the use of an internet or bus communi-
cation interface, or a remote maintenance service. No
liability is accepted for losses resulting from inappropri-
ate use.
Liability is limited to typical damage arising if a funda-
mental contractual obligation is violated through slight
negligence, the fulfilment of which is essential for
proper execution of the contract.
The limitation of liability shall not apply if the damage
was caused deliberately or through gross negligence,
or if mandatory liability applies due to product liability
legislation.
The Viessmann General Terms and Conditions apply,
which are included in each current Viessmann pricelist.
Liability
Liability
5838122
8
Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■
Component must audibly click into place.
or
■
Acoustic signal
■
Fit new component.
or
■
In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
Terminology
To provide you with a better understanding of the func-
tions of your heat pump control unit, some terminology
is explained. This information can be found in chapter
"Terminology" in the Appendix.
Intended use
The appliance is intended solely for installation and
operation in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than central heating/cooling or DHW heating shall be
deemed inappropriate.
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the heating
system are modified from their intended function.
Introductory information
Symbols
5838122
9
Depending on the type of heat pump and accessories
installed, your heating system may be equipped as fol-
lows:
■
Heating:
Central heating and, if installed, heating of heating
water buffer cylinders
■
Cooling:
The "natural cooling" and "active cooling" functions
are supported if the required accessories are instal-
led.
■
DHW heating:
DHW heating using an external DHW cylinder, and
control of a DHW circulation pump are possible.
Commissioning
The commissioning and matching up of the heat pump
control unit to local conditions and to the structural
characteristics of the building, plus the instruction of
the user in operating the system, must be carried out
by your heating contractor.
Note
These operating instructions also describe functions
that are only available on some heat pump models or
only with accessories. These functions are not specifi-
cally identified.
For questions relating to the scope of functions and
accessories for your heat pump and your heating sys-
tem, check with your contractor.
Introductory information
Product information
5838122
10
You can change all heat pump control unit settings at
the programming unit.
The programming unit is equipped with a touchscreen.
To input settings and check information, tap the on-
screen buttons.
The display switches on as soon as you touch the
screen. The start page appears.
If the screen is not touched for 5 minutes, the display
switches off automatically (standby).
Home screen: Displays and settings
The home screen provides you with the most fre-
quently used settings and checks.
Call up the home screen as follows:
■
Standby display active:
Tap anywhere on the screen.
■
You are not on the home screen:
Tap .
Home screen displays
Fig. 1
A
Menu line
B
Function area
C
Navigation area
Buttons and symbols in menu bar
A
Call up the "Main menu"
" Off " (system off) or " Auto " (automatic
mode):
Switch between automatic mode and system off
Outside temperature
Displays the current operating level
System data:
■
Date
■
Time
Buttons and icons in function area
B
The system is shown graphically here. If you tap a sys-
tem component, further information about the compo-
nent is displayed.
Buttons in navigation area
C
Call up the home screen
Back
/ Shift the display area
At least one system component is in manual
mode
Call up the "Alarm list"
Grey: No alarm and no messages
Red: Alarm
Orange: Warning
Blue: Message/prompt
Call up the "Info menu"
Additional information on the system and opera-
tion
Note
These symbols are not always displayed, but appear
subject to the system version and the operating status.
Control unit operation
Operating principles
5838122
11
Confirm an entry or selection
Cancel an entry or selection
Overview of the Main menu
In the "Main menu", you can call up and adjust all fur-
ther settings for the control unit's range of functions,
irrespective of the operating level.
Call up the "Main menu" as follows:
■
Standby display active:
Tap anywhere on the screen and then tap .
■
From the home screen:
Tap .
■
From anywhere in the menu:
Tap and then .
Menus available in the Main menu
The menus available depend on the operating level.
■
"User admin"
See "Setting the operating level" on page 12.
■
"Set val."
For temperatures and further settings, see page
12.
■
"Time/date"
See "Setting the time and date" on page 18.
■
"Email"
See "Setting email addresses for messages" on
page 18.
■
"Langs."
See "Setting the language" on page 19.
Control unit operation
General buttons
5838122
12
The settings and checks available depend on the oper-
ating level.
You can select the following operating levels:
■
"No user" (not logged in)
Only information can be checked at this operating
level. Settings cannot be adjusted. Only "User
admin" can be called up via the "Main menu".
■
"System user"
At this operating level, information can be checked
and settings can be adjusted.
■
"Service"
This operating level is for contractors only.
User login
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "User admin"
4. "Log in" to switch to the "System user" operating
level.
5. Using the keyboard, enter "Customer" in the
"User name" field.
Using the keyboard, enter "customer" in the
"Password" field.
User logout
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "User admin"
4. "Logout" to switch to the "No user" operating
level.
Note
If you do not make any settings or check any informa-
tion for a longer period of time, the operating level
automatically changes to "No user".
Setting the temperature
You set the required temperatures for the system com-
ponents.
Note
The temperatures required for operation of the "Heat
pump" are factory-set and cannot be changed.
!
Please note
Making incorrect adjustments can result in fail-
ures or damage to the system.
Avoid making incorrect settings.
Setting temperatures for the heat source
The "Heat source" includes the following system
components:
■
Coolant buffer cylinder "Coolant buff. cyl."
■
Cooling circuits "Circ. 1" to "Circ. 4"
*1
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat source"
5. Select the system component, e.g. "Cool.circ"
"Circ. 1".
6. "Set val."
7. Set the required values.
*1
The names can be changed.
Settings
Setting the operating level
5838122
13
"Coolant buff. cyl."
Parameter Factory
setting
Min. Max. Description
Set value int. 5 °C 3 °C 30 °C Fixed set buffer temperature for coolant buffer
cylinder ("Fix")
Start differential 3 K 0 K 10 K If the differential between the actual and set buf-
fer temperature is greater than this start differen-
tial, a demand is triggered.
Stop differential 0 K 0 K 10 K If the differential between the actual and set buf-
fer temperature is smaller than this stop differen-
tial, the demand ends.
"Cool.circ" (1/2/3/4)
Parameter Factory
setting
Min. Max. Description
Set val.cooling 20 °C 5 °C 25 °C Fixed set flow temperature for cooling circuit
("Fix")
Cool. lim. day 24 °C 10 °C 30 °C Cooling limit during the day
Cool. lim. night 22 °C 10 °C 30 °C Cooling limit at night
Setting the temperatures for the heat sink
The "Heat sink" includes the following system compo-
nents:
■
Heating water buffer cylinder "HWB"
■
DHW cylinder "HW"
■
"Booster htr"
■
Heating circuits "Circ. 1" to "Circ. 4"
*1
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat sink"
5. Select the system component, e.g. "Htg circ."
"Circ. 1".
6. "Set val."
7. Set the required values.
"HWB" (heating water buffer cylinder)
Parameter Factory
setting
Min. Max. Description
Set value int. 40 °C 25 °C 60 °C Fixed set buffer temperature for heating water
buffer cylinder ("Fix")
Set val. active cooling 50 °C 25 °C 60 °C Set value for parallel operation of coolant buffer
cylinder AC and heating water buffer cylinder
Start differential 3 K 0 K 10 K If the differential between the actual and set buf-
fer temperature is greater than this start differen-
tial, a demand is triggered.
Stop differential 0 K 0 K 10 K If the differential between the actual and set buf-
fer temperature is smaller than this stop differen-
tial, the demand ends.
*1
The names can be changed.
Settings
Setting the temperature (cont.)
5838122
14
"HW" (domestic hot water)
Parameter Factory
setting
Min. Max. Description
Set val. standard heating 50 °C 25 °C 60 °C Fixed set buffer temperature for standard heating
of the DHW cylinder
Set val. high heating 60 °C 25 °C 65 °C Fixed set buffer temperature for high heating of
the DHW cylinder (for increased drinking water
hygiene)
Start differential 3 K 0 K 10 K If the differential between the actual and set buf-
fer temperature is greater than this start differen-
tial, a demand is triggered.
Stop differential 0 K 0 K 10 K If the differential between the actual and set buf-
fer temperature is smaller than this stop differen-
tial, the demand ends.
"Booster htr"
Parameter Factory
setting
Min. Max. Description
Dual mode pt -3 °C -20 °C 10 °C Outside temperature at which the booster heater
backs up the heat pump
Set val. increase 5 K 2 K 10 K Value that is added to the set value of the exter-
nal heat generator
Start delay 1 min 1 min 30 min Waiting time before demand is issued to booster
heater
Feedback delay 1 min 1 min 30 min Amount of time the booster heater has to provide
an operating response
"Htg circ." (1/2/3/4)
Parameter Factory
setting
Min. Max. Description
Set val. htg 25 °C 20 °C 50 °C Fixed set flow temperature for the heating circuit
("Fix")
Htg limit day 18 °C 10 °C 25 °C If the average outside temperature for the day
falls below this value, the heating system is acti-
vated.
Htg limit night 16 °C 10 °C 25 °C If the average outside temperature for the night
falls below this value, the heating system is acti-
vated.
Setting time programs
Setting a 7-day program for a cooling circuit
You set the required times for switching the individual
cooling circuits on and off.
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat source"
5. Select the cooling circuit, e.g. "Cool.circ" "Circ.
1".
6. "On/Off Cool.circ"
7. Set the required values.
Settings
Setting the temperature (cont.)
5838122
15
"7-day program"
Parameter Factory setting Description
Operat. Status (On/Off)
Monday on 05:00 h Start time on Monday
Monday off 22:00 h Stop time on Monday
:
Sunday on 05:00 h Start time on Sunday
Sunday off 22:00 h Stop time on Sunday
Setting a 7-day program for a heating circuit
You set the required times for switching the individual
heating circuits on and off.
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat sink"
5. Select the heating circuit, e.g. "Htg circ." "Circ.
1".
6. "On/Off Htg circ."
7. Set the required values.
"7-day program"
Parameter Factory setting Description
Operat. Status (On/Off)
Monday on 05:00 h Start time on Monday
Monday off 22:00 h Stop time on Monday
:
Sunday on 05:00 h Start time on Sunday
Sunday off 22:00 h Stop time on Sunday
Setting cooling curves and heating curves
For information on curves, see page 32.
Setting cooling curves for the heat source
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat source"
5. Select the system component, e.g. "Cool.circ"
"Circ. 1".
6. "Cooling curve"
7. Set the required values.
"Day" Flow temperatures, standard mode
"Night" Flow temperatures, reduced mode
The flow temperature values are each assigned to
an outside temperature value.
Settings
Setting time programs (cont.)
5838122
16
Setting heating curves for the heat sink
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat sink"
5. Select the system component, e.g. "Htg circ."
"Circ. 1".
6. "Heating curve"
7. Set the required values.
"Day" Flow temperatures, standard mode
"Night" Flow temperatures, reduced mode
The flow temperature values are each assigned to
an outside temperature value.
Setting day/night changeover
Setting day/night changeover for the heat source
The "Heat source" includes the following system
components:
■
Coolant buffer cylinder "Coolant buff. cyl."
■
Cooling circuits "Circ. 1" to "Circ. 4"
*1
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat source"
5. Select the system component, e.g. "Cool.circ"
"Circ. 1".
6. "Day/night changeover cooling curve"
7. Set the required values.
Parameter Factory setting Description
Operat. Status (day (On) / night (Off))
Start day 07:00 h Time of changeover from night curve to day
curve
End day 22:00 h Time of changeover from day curve to night
curve
Setting day/night changeover for the heat sink
The "Heat sink" includes the following system compo-
nents:
■
Heating water buffer cylinder "HWB"
■
Heating circuits "Circ. 1" to "Circ. 4"
*1
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat sink"
5. Select the system component, e.g. "Htg circ."
"Circ. 1".
6. "Day/night changeover htg curve"
7. Set the required values.
*1
The names can be changed.
Settings
Setting cooling curves and heating curves (cont.)
5838122
17
Parameter Factory setting Description
Operat. Status (day (On) / night (Off))
Start day 07:00 h Time of changeover from night curve to day
curve
End day 22:00 h Time of changeover from day curve to night
curve
Setting high temperature maintenance
With high temperature maintenance, the heating water
in the circuit is circulated so that cold water does not
go directly to the cylinder.
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat sink"
5. "Condenser"
6. "Valve condenser"
7. Set the required values.
Parameter Factory
setting
Min. Max. Description
T maint. 40 °C 25 °C 60 °C Set value for high temperature maintenance with
controlled pump
Setting DHW circulation
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat sink"
5. "HW"
6. "Pump DHW circ."
7. Set the required values.
"7-day program"
Parameter Factory setting Description
Operat. Status (On/Off)
Monday on 05:00 h Start time on Monday
Monday off 22:00 h Stop time on Monday
:
Sunday on 05:00 h Start time on Sunday
Sunday off 22:00 h Stop time on Sunday
Circulation pumps can seize up if they are idle for a
long time.
The anti-blocking protection switches the circulation
pumps on for a short period at certain times.
"Anti-blocking prot."
Parameter Value Description
Weekday "Mo" to "Su" Day of the week when the circulation pump is
switched on.
Time hh:mm Time at which the circulation pump is switched on.
Dur. min Duration of the pump runtime
Settings
Setting day/night changeover (cont.)
5838122
18
The DHW cylinder can be heated at certain times with
4 "time switches" for "standard heating" and 2
"time switches" for "high heating".
Note
For the heat pump to heat the DHW cylinder, there
must be a demand from the DHW cylinder and at least
one of the time switches must be active.
"Standard heating":
The DHW cylinder is heated to the fixed set buffer tem-
perature (e.g. 50 °C). (Recommended for times when
a DHW demand is present, e.g. early in the morning
and evening)
"High heating":
The DHW cylinder is heated to a higher temperature
(e.g. 65 °C) to improve drinking water hygiene.
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Set val."
4. "Heat sink"
5. "HW"
6. "Time sw."
7. "Standard heating 1" (2, 3, 4) / "High heating 1"
(2)
8. Set the required values.
"Standard heating 1" (2, 3, 4)
Parameter Value (example) Description
Operat. Status (On/Off)
Start day 05:00 h Start of "Standard heating"
End day 07:00 h End of "Standard heating"
"High heating 1" (2)
Parameter Value (example) Description
Operat. Status (On/Off)
Start day 22:30 h Start of "High heating"
End day 23:00 h End of "High heating"
Setting the time and date
You can set the time and date for your time zone
(installation location of the system). This setting must
be made when commissioning the system.
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Time/date"
4. "Set time" or "Set the date"
5. Set the required values.
6. Confirm with "Activate time and date".
Setting email addresses for messages
You can set up to five email addresses which any
system messages will be forwarded to.
Messages can be sent with a time delay. If the mes-
sage is acknowledged within the set time delay, no
email is sent.
!
Please note
In order to send an email, the heat pump control
unit must be connected to the internet and the
corresponding ports must be enabled.
Consult an IT expert for further information.
Settings
Heating the DHW cylinder at certain times
5838122
19
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Email"
4. e.g. "Email address 1" to set the email address
or "Delay dispatch 1" to set the time delay
5. Set the required values.
Setting the language
Select the required language.
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. for the "Main menu"
3. "Langs."
4. Select the required language.
Settings
Setting email addresses for messages (cont.)
5838122
20
Information in the function area
The system is displayed graphically in the function
area; see Fig. 1, page 10.
You can call up additional information for each system
component.
Tap the following on-screen buttons:
1. If necessary, for the home screen
2. Tap on the required system component to see fur-
ther information about it, e.g. current temperatures.
Information in the menu
The following information can be checked in the
menu:
■
"Operating info"
■
"Service information"
■
"Contact information"
■
"Appl. limits"
Tap the following on-screen buttons:
1. If necessary, for the home screen
2.
3. Select the required menu point.
Checking messages
If any messages are present, the symbol flashes in
the navigation area.
Symbol Colour coding Meaning
Grey No message
Red Fault
Orange Warning
Blue Message/prompt
1. should be tapped in the navigation area.
All messages appear in a list, sorted by time.
2. Make a note of the fault code. For example: 32
"Prim. circ. press. too low".
This enables the system installer to be better pre-
pared. In addition, unnecessary travel costs may
be saved.
3. Notify installer.
4. With "Acknowl.", all messages in the alarm list
are acknowledged.
Note
The fault must be rectified.
in the "Status" column turns grey.
!
Please note
Repeated acknowledgement of the same
fault can lead to system damage and may
cause considerable costs.
Do not acknowledge fault messages several
times in quick succession.
If a fault recurs, notify the system installer
and have the fault rectified.
Checks
Calling up information
5838122
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