Viessmann VITOCAL 060-A Operating instructions

Operating instructions
for the system user
VIESMANN
DHW heat pump
■Type T0E-ze: With immersion heater EHE
■Type T0S-ze: With connection for external heat generator
VITOCAL 060-A
6136011 GB 6/2019 Please keep safe.

2
Please follow these safety instructions 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 environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These operating instructions are intended for system
users.
This appliance can also be operated by children of 8
years and older, as well as by individuals with reduced
physical, sensory or mental faculties or those lacking
in experience and knowledge, provided such individu-
als are being supervised or have been instructed in the
safe use of this appliance as well as in any risks aris-
ing from it.
!Please note
Supervise children in the proximity of the appli-
ance.
■Never permit children to play with the appli-
ance.
■Cleaning and maintenance must not be car-
ried out by unsupervised children.
Appliance connection
■The appliance may only be connected and commis-
sioned by authorised contractors.
■Observe the specified electrical connection require-
ments.
■Modifications to the existing installation may only be
carried out by authorised contractors.
Danger
Incorrectly executed work on the system can
lead to life-threatening accidents.
Work on electrical equipment must only be car-
ried out by a qualified electrician.
Work on the appliance
■All settings and work on the appliance must be car-
ried out as specified in these operating instructions.
Further work on the appliance may only be carried
out by authorised contractors.
■Never open the appliance.
■Never remove casings.
■Never change or remove attachments or fitted
accessories.
■Never open or retighten pipe connections.
Danger
Hot surfaces can cause burns.
■Never open the appliance.
■Never touch the hot surfaces of uninsulated
pipes and fittings.
In case of fire
Danger
Fires create a risk of burns.
■Switch the system OFF.
■Use a tested fire extinguisher, class ABC.
Safety instructions
For your safety
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Conditions for siting
Danger
Easily flammable liquids and materials (e.g.
naphtha, solvents, cleaning agents, paints or
paper) can cause deflagration and fire.
Never store or use such materials in the installa-
tion room or in direct proximity to the heating
system.
!Please note
Unsuitable ambient conditions can lead to sys-
tem damage and can put safe operation at risk.
■Maintain the permissible ambient tempera-
tures as detailed in the operating instructions.
■Appliance for indoor installation:
–Avoid air contamination through halogenated
hydrocarbons (e.g. as in paints, solvents
and cleaning agents).
–Avoid continuously high humidity levels (e.g.
through continuous drying of washing).
Auxiliary components, spare and wearing parts
!Please note
Components that were not tested with the sys-
tem may cause system damage, or may affect
its functions.
Have all installation or replacement work carried
out by qualified contractors.
Safety instructions
For your safety (cont.)
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4
1. Introductory information Symbols ................................................................................................. 5
Intended use .......................................................................................... 5
Product information ................................................................................ 6
■Vitocal 060-A ...................................................................................... 6
Outside temperature limits ..................................................................... 6
Permissible air intake temperatures ...................................................... 7
Commissioning ...................................................................................... 7
Your system is preset at the factory ....................................................... 7
Energy saving tips ................................................................................. 7
Tips for greater comfort ......................................................................... 7
2. Control unit operation Programming unit .................................................................................. 8
■Default display .................................................................................... 8
3. DHW heating Setting the DHW temperature ................................................................ 9
Selecting an operating program ............................................................. 9
■"ECO" operating program .................................................................. 10
■"SMART" operating program ............................................................. 10
■"AUTO" operating program ................................................................ 11
■"bOOST" operating program ............................................................. 11
■"PROG"/"Night" operating program .................................................. 12
■"OUT" operating program (holiday program) ..................................... 12
Setting the time program for DHW heating ............................................ 13
DHW demand ........................................................................................ 13
Increased DHW hygiene ........................................................................ 14
4. Power from a photovoltaic
system
Utilisation of power generated on site .................................................... 15
5. Further settings Time and day ......................................................................................... 16
Childproofing .......................................................................................... 16
Restoring factory settings (reset) ........................................................... 16
6. Checks Calling up information ............................................................................ 17
Calling up messages ............................................................................. 17
7. Switching on and off Stopping the DHW heat pump ............................................................... 18
■Shutting down the system .................................................................. 18
Starting the DHW heat pump ................................................................. 18
■After a shutdown or a power failure lasting longer than 24 hours ...... 18
8. What to do if... DHW heat pump does not start ............................................................. 19
No input is possible at the programming unit ......................................... 19
9. Maintenance Cleaning ................................................................................................. 20
Inspection and maintenance .................................................................. 20
■Damaged cables / lines ...................................................................... 20
■DHW cylinder ...................................................................................... 20
■Safety valve (DHW cylinder) ............................................................... 20
■Potable water filter (if installed) .......................................................... 20
10. Appendix Premium/economy tariff ......................................................................... 21
Minimum stop time function ................................................................... 21
Information on disposal .......................................................................... 21
■Disposal of packaging ........................................................................ 21
■Final decommissioning and disposal of the heating system ............... 21
11. Keyword index ................................................................................................................ 22
Index
Index
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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.
Intended use
The appliance is only intended to be installed and
operated in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions.
The appliance may only be used for heating DHW.
The range of functions can be extended with additional
components and accessories.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial use for purposes other than
domestic hot water heating shall be deemed inappro-
priate.
Any usage beyond this must be approved by the man-
ufacturer in each individual case.
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.
Note
The appliance is intended exclusively for domestic
use, i.e. even users who have not had any instruction
are able to operate the appliance safely.
Introductory information
Symbols
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Vitocal 060-A
A DHW cylinder is integrated into the type T0E-ze
DHW heat pump.
The heat pump uses the thermal energy in the indoor
or outdoor air for DHW heating.
At times of peak DHW demand, an immersion heater
can provide reheating (fitted at the factory for type
T0E-ze; accessory for type T0S-ze).
Type T0S-ze contains the full function range of type
T0E-ze. In addition, a solar thermal system or external
heat generator (e.g. oil/gas boiler) can be connected.
The heat pump is available for recirculation air
mode, outdoor air mode and recirculation air mode
with air discharge to the outside.
Recirculation air mode
In recirculation air mode, the ambient temperature
(indoor air in the installation room) is used for DHW
heating.
When DHW is being heated, the installation room is
cooled and dehumidified.
Recirculation air mode with air discharge to the
outside
Ambient air is supplied to the DHW heat pump. A sep-
arate outdoor air aperture simultaneously allows out-
door air to enter the room.
The ambient air that is cooled down during DHW heat-
ing is routed outdoors by the DHW heat pump.
Outdoor air mode
In outdoor air mode, outdoor air is supplied via a duct.
The outdoor air that is cooled down during DHW heat-
ing is routed outdoors by the DHW heat pump.
Outside temperature limits
Note
What DHW temperature the heat pump can achieve
depends on the outside temperature.
The maximum achieved is 62 °C.
-5
30 0 10 20 30
40
50
60
70
Air intake temperature in °C
DHW temperature in °C
A
6
62
Fig. 1
AMaximum DHW temperature achievable by the
heat pump: 62 °C
Introductory information
Product information
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The DHW heat pump shuts down outside the permissi-
ble air intake temperatures. In some operating pro-
grams, DHW can also be heated outside the permissi-
ble air intake temperatures, through the use of an
immersion heater (accessories). With type T0S-ze, an
external heat generator can be connected.
Permissible air intake temperatures:
■For DHW heating in recirculation air mode and recir-
culation air mode with air discharge to the outside
(temperature in the installation room):
3 °C to 35 °C.
■For DHW heating in outdoor air mode (outside tem-
perature):
-5 °C to 35 °C.
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.
Your system is preset at the factory
Your DHW heat pump is preset at the factory and is
therefore ready for operation.
DHW heating
■DHW is heated every day from 00:00 to 24:00 h to
53 °C (set DHW temperature).
Day and time
■The day and time have been set by your contractor.
You can change the settings at any time to suit your
individual requirements.
Power failure
All settings are retained for 24 hours if there is a power
failure.
Energy saving tips
Saving energy on DHW heating
■At night or during regular absences, heat the DHW to
a lower temperature. To do so, adjust the time pro-
gram for DHW heating: See page 13.
■Disable automatic DHW cylinder reheating by the
immersion heater. Enable the "ECO" operating pro-
gram: See page 10.
Utilisation of power generated on site (in conjunc-
tion with a photovoltaic system)
■Use the power generated by your photovoltaic sys-
tem for your DHW heat pump (see page 15).
For additional energy saving functions of the heat
pump control unit, please contact your contractor.
Tips for greater comfort
DHW heating
■Adjust the time program for DHW heating so that
there is always sufficient hot water in accordance
with your habitual routines: See page 13.
Example:
You need more DHW in the morning than in the day-
time.
■Use the immersion heater (if installed) for automatic
DHW cylinder reheating. Enable the AUTO operating
program.
■Quick heat-up "bOOST" (only in conjunction with
an immersion heater; see page 11):
You can heat up the DHW cylinder immediately,
regardless of the time program. Enable the
"bOOST" operating program.
■Immersion heater (if installed):
Use the immersion heater at low ambient or outside
temperatures, or if the DHW heat pump develops a
fault, for example.
Introductory information
Permissible air intake temperatures
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Default display
Fig. 2
OK Confirms your selection or saves the setting
made.
■Selects the operating program.
■Calls up time programs.
■Displays information.
■Takes you one step back in the menu.
■Terminates an adjustment in progress.
+/−Scrolls through the menu or adjusts values.
Display Meaning See page
"ECO" ECO operating program is selected. 9
"ECO" + "Auto" Smart operating program is selected. 9
"AUTO" AUTO operating program is selected. 9
"bOOST" bOOST operating program is selected. 11
OUT operating program is selected. 10
Display and set times. 16
+ "PROG" PROG operating program is selected. 13
+ "Night" Night operating program is selected. 9
Display information. 17
Heat pump is enabled.
flashes Heat pump starts once the minimum stop time has expired. 21
Immersion heater is enabled.
Premium/economy tariff is enabled. 21
flashes Economy tariff is active. 21
rotates Increased DHW hygiene function is active. 14
Display of set time phases 16
You can adjust the set DHW temperature in the
"ECO", "AUTO", "PROG" "Night" and "bOOST"
operating programs: See page 9.
In the "Smart" operating program, you can select the
comfort level: See page 10.
Control unit operation
Programming unit
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Factory setting: 53 °C "ECO"
Press the following buttons:
1. +/−for the required value.
2. OK to confirm
or
to cancel the adjustment.
Selecting an operating program
Use to select the required operating program.
I2 = 0
I2 = 1
I6 = Off
I6 = On
Fig. 3
I2 = 0 Installation without premium/economy tariffs
1 Installation with premium/economy tariffs
Installation and service instructions
I6 = Setting for PROG operating program
Off Standard
On "Night" mode: Optimum heating of DHW cyl-
inder between 23:00 h and 05:00 h.
Note
"INFO" and "TIME" are not operating programs.
"INFO" Menu for calling up information: See
page 17.
"TIME" Menu for setting the time program for DHW
heating: See page 13.
Type T0S-ze only:
If an external heat generator or solar thermal system
are connected, they function independently of the
operating program selected. Set the heating character-
istics of the external heat generator or solar thermal
system at the respective control unit.
Examples:
■If premium/economy tariffs are enabled, DHW is
heated by the solar thermal system during the day
and by the DHW heat pump on a cheaper tariff at
night.
■In the ECO operating program, the heat pump
switches off once the maximum set DHW tempera-
ture has been reached. The external heat generator
continues heating to a higher set DHW temperature.
DHW heating
Setting the DHW temperature
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"ECO" operating program
DHW is heated by the DHW heat pump only. The
max. achievable DHW temperature depends on the
outside temperature: See chapter "Outside tempera-
ture limits", page 6.
Outside temperature from –5 °C to 35 °C
0
DHW temperature in °C
Fig. 4
AHeat pump
BImmersion heater
CDHW temperature achievable with the heat pump
(no higher than the set DHW temperature)
Outside temperature below –5 °C or above 35 °C
0
DHW temperature in °C
10
Fig. 5
AHeat pump
BImmersion heater
CDHW temperature achievable with the heat pump
(no higher than the set DHW temperature)
"SMART" operating program
DHW is heated by the DHW heat pump according to
the learned draw-off profile. The control unit deter-
mines the times for DHW heating based on the times
when you regularly draw off DHW. The immersion
heater is switched on only if the heat pump fails to ach-
ieve the set DHW value due to outdoor air temperature
being too low.
Setting options: Comfort level SM1 (economy) to SM5
(comfort)
Level Comfort Economy Set DHW temperature in °C
(min./max.)
SM1 – – + + 45/57
SM2 – + 45/60
SM3 = = 45/62
SM4 + – 50/62
SM5 + + – – 55/62
Outside temperature above –2.5 °C
0
DHW temperature in °C
Fig. 6
AHeat pump
BImmersion heater
DDHW set temperature
Outside temperature below –2.5 °C
0
DHW temperature in °C
Fig. 7
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DDHW set temperature
DHW heating
Selecting an operating program (cont.)
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"AUTO" operating program
■DHW is heated by the DHW heat pump as a priority.
■Depending on the outside temperature and the set
DHW temperature, the immersion heater is automati-
cally started too.
Outside temperature from –5 °C to 35 °C
0
DHW temperature in °C
Fig. 8
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (AUTO)
Outside temperature below –5 °C or above 35 °C
0
DHW temperature in °C
Fig. 9
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (AUTO)
"bOOST" operating program
The bOOST operating program enables quick DHW
heating up to the set DHW temperature.
DHW is heated by the DHW heat pump and the
immersion heater.
Note
Operating an immersion heater results in higher power
consumption.
You can adjust the set DHW temperature at any time.
As soon as the set DHW temperature has been ach-
ieved, the heat pump control unit switches back to the
operating program that was previously enabled.
If you want to end the bOOST operating program early,
select a different operating program.
Note
After starting, the heat pump will always run for a
specified minimum runtime.
Outside temperature from –5 °C to 35 °C
0
DHW temperature in °C
Fig. 10
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (bOOST)
Outside temperature below –5 °C or above 35 °C
0
DHW temperature in °C
Fig. 11
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (bOOST)
DHW heating
Selecting an operating program (cont.)
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"PROG"/"Night" operating program
DHW is heated by the DHW heat pump as a priority
during the time phases selected in the time program.
Depending on the outside temperature and the set
DHW temperature, the immersion heater is automati-
cally started too.
PROG only:
Outside the selected time phases, DHW is only heated
minimally (frost protection function).
Night only:
■DHW is heated between 23:00 h and 05:00 h. The
start is delayed in such a manner that the set DHW
temperature is achieved at 05:00 h.
■Outside this time period (05:00 h to 23:00 h) water is
only heated minimally (frost protection function).
DHW heating enabled
Outside temperature from –5 °C to 35 °C
0
DHW temperature in °C
Fig. 12
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (AUTO)
Outside temperature below –5 °C or above 35 °C
0
DHW temperature in °C
Fig. 13
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (AUTO)
DHW heating not enabled
Note
The immersion heater is only activated for frost protection.
Outside temperature from –5 °C to 35 °C
0
DHW temperature in °C
10
Fig. 14
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (PROG)
Outside temperature below –5 °C or above 35 °C
0
DHW temperature in °C
10
Fig. 15
AHeat pump
BImmersion heater
CDHW temperature achievable by the heat pump
DSet DHW temperature (PROG)
"OUT" operating program (holiday program)
Standby mode with frost protection for the DHW heat
pump. DHW is only heated minimally. The duration of
standby mode can be selected (number of days).
DHW heating
Selecting an operating program (cont.)
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Outside temperature from –5 °C to 35 °C
0
DHW temperature in °C
10
Fig. 16
AHeat pump
BImmersion heater
Outside temperature below –5 °C or above 35 °C
0
DHW temperature in °C
10
Fig. 17
AHeat pump
BImmersion heater
Setting the time program for DHW heating
In the time program, you specify when DHW is heated
in the "PROG" operating program.
You can define a time program that applies every day
of the week:
"WEEK" Every day of the week
You can define separate time programs for each indi-
vidual day:
"MON" Monday
"TUE" Tuesday
"WED" Wednesday
"THU" Thursday
"FRI" Friday
"SAT" Saturday
"SUN" Sunday
Note
Please note that your DHW heat pump requires some
time to heat the water to the required temperature.
Select a correspondingly earlier start time.
Press the following buttons:
1. until "PROG" is displayed.
2. OK for 3 s until "WEEK" or "MON" is displayed.
3. +/−to select a day
or
+to keep "WEEK".
4. OK to confirm
5. +/−for the selected hour: 00:00 to 23:00 h
6. OK to confirm
DHW heating is enabled during the selected
hour.
7. +/−to select further hours.
8. OK for 3 s to save. "SAVE" appears.
Note
If no key is pressed for 30 s, the program
closes without saving. "EXIT" appears.
Only for selection "MON":
Repeat these steps for the other days.
Note
If the time and day have not yet been set, the heat
pump control unit will ask you to do this. See
page 16.
DHW demand
The draw-off profile can be changed from L (2 people)
to XL (4 people) to accommodate a higher DHW
demand or provide greater convenience. Only author-
ised contractors may make this change.
DHW heating
Selecting an operating program (cont.)
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This function allows you to improve the microbiological
quality of the water in the DHW cylinder. This is by
heating the DHW in your DHW cylinder to 60 °C at reg-
ular intervals. The interval is set to between 1 and
30 days by you heating contractor.
Interval (1 to 30 days), see Parameter I4 in the
installation and service instructions.
This function runs regardless of the selected operating
program.
As long as this function is active, a rotating is shown
on the display in front of the cylinder temperature.
DHW heating
Increased DHW hygiene
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You can use the power generated by your photovoltaic
system for DHW heating.
For this, consult your contractor.
Power from a photovoltaic system
Utilisation of power generated on site
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To use the PROG operating program, it is essential
to set the time and day.
Press the following buttons:
1. until "TIME" is displayed.
2. OK to change the value displayed
3. +/−to change the value
4. OK to confirm
Display Meaning
"MON" Monday
"TUE" Tuesday
"WED" Wednesday
"THU" Thursday
"FRI" Friday
"SAT" Saturday
"SUN" Sunday
Childproofing
No input is possible at the programming unit when
childproofing is enabled.
Press + and − simultaneously:
Displays:
"LOCK" Childproofing enabled
"L--OK" Childproofing disabled
Restoring factory settings (reset)
Note
Not possible when fault messages are active, during
"Increased DHW hygiene" or in the PROG operating
program
Press the following buttons:
1. and OK simultaneously for 3 s until "RST?"
appears.
2. OK to confirm
"dONE" appears.
Note
Time and date need to be set again.
3. to exit the menu.
Further settings
Time and day
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The following information can be called up:
■Annual consumption (estimated electricity consump-
tion)
■Proportion of DHW heating provided by the immer-
sion heater and the heat pump in the last 30 days
Example:
Fig. 18
Display Meaning
"142" "kWh / 30
days"
The appliance has consumed
142 kWh per month.
"HR:22" % Time percentage of DHW heating
provided by the immersion heater in
the last 30 days: 22 %
"HP:78" % Time percentage of DHW heating
provided by the heat pump in the
last 30 days: 78 %
Display information
Press the following buttons:
1. until "INFO" is displayed.
2. OK to confirm
3. +/-to toggle between the displays.
4. and OK simultaneously to reset the values.
5. to exit the menu.
Calling up messages
Messages are shown if your DHW heat pump experi-
ences particular events or operating conditions.
If faults occur, notify your contractor. Tell your contrac-
tor which fault message is being displayed ("ER 0" to
"ER 10"). This enables the contractor to be better pre-
pared and may save you unnecessary travelling costs.
Checks
Calling up information
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Shutting down the system
Disconnect the power plug. !Please note
If outside temperatures of below -5 °C are
expected, take appropriate measures to protect
the DHW heat pump from frost.
If necessary, contact your contractor.
Starting the DHW heat pump
After a shutdown or a power failure lasting longer than 24 hours
1. Check that the power plug is plugged in. Switch
ON the power supply, e.g. at a separate MCB/fuse
or mains isolator.
After a few seconds, the appliance starts in the
"ECO" operating program and "--:--" flashes.
2. If the display alternates between time and date,
these need to be reset: See page 16.
3. Press any button.
The appliance is ready for operation. The set DHW
temperature is 53 °C.
Switching on and off
Stopping the DHW heat pump
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Cause Remedy
■The power plug is not plugged in.
■An ON/OFF switch installed on site has not been
switched on.
■Insert the power plug into the socket.
■Turn on the mains isolator.
There is no power at the socket. Check the MCB/fuse in the power distribution board
(main domestic MCB/fuse).
The appliance is in standby mode. Switch ON the DHW heat pump (see page 18).
Your DHW heat pump has only just shut down and can-
not restart immediately (minimum stop time).
No action required.
Wait approx. 5 minutes.
A message ("ER 0" to "ER 10") is displayed. Notify your contractor.
No input is possible at the programming unit
Cause Remedy
Childproofing is enabled. Press + and − simultaneously:
Displays:
"LOCK" Childproofing enabled
"L--OK" Childproofing disabled
What to do if...
DHW heat pump does not start
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The appliance surfaces can be cleaned with a com-
mercially available domestic cleaning agent (non-
scouring).
No splashes of water must enter the DHW heat pump.
Inspection and maintenance
The inspection and maintenance of a heating system
is prescribed by the Energy Saving Ordinance [EnEV -
Germany] and the DIN 4755, DVGW-TRGI 2008 and
DIN 1988-8 standards.
Regular maintenance ensures trouble-free, energy effi-
cient, environmentally responsible and safe heating.
Your heating system must be serviced by an author-
ised contractor at least every 2 years. For this, it is
best to arrange an inspection and maintenance con-
tract with your local heating contractor.
Damaged cables / lines
If there is damage to the connecting cables or lines of
the appliance or externally installed accessories, these
must be replaced with special cables or lines. Only use
Viessmann cables / lines as replacement. For this,
notify your qualified contractor.
DHW cylinder
Standards DIN 1988-8 and EN 806 specify that main-
tenance or cleaning should be carried out no later than
2 years after commissioning and as required there-
after.
Only a qualified contractor may clean the inside of the
DHW cylinder, including the water connections.
If any water treatment equipment (e.g. a sluice or
injection system) is installed in the cold water supply of
the DHW cylinder, ensure this is refilled in good time.
For this, observe the manufacturer's instructions.
We recommend an annual function check of the pro-
tective magnesium anode by your contractor.
The function of the protective magnesium anode can
be checked without interrupting operation. The con-
tractor will check the earth current with an anode
tester.
Safety valve (DHW cylinder)
The function of the safety valve must be checked
every six months by the user or a contractor through
venting (see valve manufacturer's instructions). The
valve seat may become contaminated.
Water may drip from the safety valve during a heat-up
process. The outlet is open to the atmosphere.
!Please note
Overpressure can cause damage.
Do not close the safety valve.
Potable water filter (if installed)
To maintain high hygienic standards, proceed as fol-
lows:
■Replace filter element on non-back flushing filters
every six months (visual inspection every
two months).
■On back flushing filters, back flush every
two months.
Maintenance
Cleaning
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