Viessmann PLC VITOCAL 350-HT PRO Operating instructions

Operating instructions
for the system user
Viesmann
Heat pump control unit for Vitocal 350-HT Pro
PLC VITOCAL 350-HT PRO
5801 531 GB 7/2017 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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1. Introductory information Symbols ................................................................................................. 5
Intended use .......................................................................................... 5
Appliance description ............................................................................. 6
■Heat pump control unit ....................................................................... 6
Commissioning ...................................................................................... 6
Terminology ........................................................................................... 6
Your system is preset at the factory ....................................................... 6
Tips on saving energy ............................................................................ 7
2. Operation Programming unit .................................................................................. 8
■Operating information ......................................................................... 8
■Symbols on the display ....................................................................... 8
■Main side ............................................................................................ 9
■Menu ................................................................................................... 10
■Login and language ............................................................................ 11
■System status ..................................................................................... 12
■Displaying and acknowledging alarms ............................................... 12
■High temperature maintenance .......................................................... 14
■Heating water buffer cylinder .............................................................. 15
■Heat source ........................................................................................ 16
■Heat pump operation .......................................................................... 17
■Compressor ........................................................................................ 18
■Domestic hot water cylinder (DHW) ................................................... 19
■Coolant buffer cylinder ........................................................................ 20
■Residual heat dissipation .................................................................... 21
■Setting the time and date .................................................................... 22
■Adjusting set values ............................................................................ 23
■Set values for heating water buffer cylinder (HWB) and high temper-
ature maintenance .............................................................................. 24
■Set values for domestic hot water (DHW) .......................................... 26
■Set values for coolant buffer cylinder .................................................. 27
3. Start-up/shutdown Switching the power supply on/off ......................................................... 28
■Starting the heat pump ....................................................................... 28
■Shutting down the heat pump ............................................................. 28
4. Maintenance Maintenance .......................................................................................... 29
■Cleaning ............................................................................................. 29
■Renovations ........................................................................................ 29
Inspection and maintenance .................................................................. 29
DHW cylinder ......................................................................................... 29
Safety valve ........................................................................................... 29
Drinking water filter ................................................................................ 29
5. Appendix Refrigerant ............................................................................................. 30
Overview of fault messages ................................................................... 30
■Priority 1 faults (system switches off) ................................................. 30
■Other fault messages ......................................................................... 31
Terminology ........................................................................................... 34
6. Keyword index ................................................................................................................ 35
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 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.
Depending on the version, the appliance can only be
used for the following purposes:
■Central heating
■Central cooling
■DHW heating
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 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
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Heat pump control unit
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.
■Domestic hot water 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 extent of functions and
accessories for your heat pump and your heating sys-
tem, check with your contractor.
Terminology
To provide you with a better understanding of the func-
tions of your heat pump control unit, some terminology
is explained.
The terms are marked as follows:
Further information can be found in chapter
"Terminology" in the appendix.
Your system is preset at the factory
The heat pump control unit is not pre-configured at the
factory. Your heating system will be configured by your
heating contractor during commissioning. The follow-
ing operating parameters are set at the factory and can
be adjusted by you:
Central heating/central cooling
■If a heating water buffer cylinder is installed, it will be
heated.
Domestic hot water heating:
■During the night, DHW is heated from 22:00 to
05:00 h to 55 °C "Set value, cyl". Any installed
DHW circulation pump is off.
Additional function of DHW heating
■Once a week on Saturday between
04:00 and 06:00 h the DHW cylinder is heated to
65 °C in order to kill off any legionella bacteria that
may be present.
Note
In order to reach the required temperature, a booster
heater may be required for the DHW cylinder,
depending on the heat pump.
Frost protection
■Frost protection for your heat pump, the DHW cylin-
der and any heating water buffer cylinder that may
be installed is ensured.
Introductory information
Appliance description
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Note
At temperatures below −20 °C, frost protection of the
heat pump, the DHW cylinder and the heating water
buffer cylinder is only ensured if an instantaneous
heating water heater is installed (on site).
Wintertime/summertime changeover
■This changeover is automatic.
Time and date
■The day and time were set by your heating contrac-
tor during commissioning.
Power failure
All data is retained if there is a power failure.
Tips on saving energy
Use the setting options offered by the heat pump con-
trol unit:
■Do not overheat your rooms; you can save up to 6 %
on your heating bills for every degree you reduce
your room temperature.
Never set your room temperature higher than 20 °C.
■For central heating/cooling, select the settings that
meet your current requirements.
■If you do not want to heat any rooms and require no
hot water for a prolonged period of time, switch off
the system.
■Do not set the temperature inside the DHW cylinder
too high.
Note
Contact your heating contractor for additional energy
saving functions of the heat pump control unit.
Further recommendations:
■Correct ventilation/airing
Briefly open windows fully and at the same time
close radiator valves (if no mechanical ventilation
system is installed).
■Close roller shutters (if installed) at dusk.
■Set the radiator valves correctly.
■Never cover radiators or radiator valves.
■Controlled use of DHW: A shower uses less energy
than a full bath.
Introductory information
Your system is preset at the factory (cont.)
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Operating information
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 call up information, tap the on-
screen buttons.
The display boots up as soon as you touch the display.
The homepage appears.
If the screen is not touched for 5 minutes, the display
returns automatically to the homepage.
If the screen is not touched for 15 minutes, the display
switches off automatically.
Symbols on the display
For the symbols on the buttons, see page 9.
Valves and circulation pumps
Fig. 1
AShut-off valve
Green: Open
Grey: Closed
Circulation pump
Green: In operation
Grey: OFF
3-way mixing valve with one inlet and 2 controlla-
ble outlets. The degree of opening is given as a
percentage.
100 %: Outlet straight through the valve is fully
open.
0 %: Outlet to the bypass is fully open.
Operation
Programming unit
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Main side
Fig. 2
AInformation about the system
BInformation about operation
CDate/time
Calls up the "Time setting" page. See
page 22.
"Menu" Calls up the "Menu" page. See page 10.
Outside temperature
Shows the current user ("Customer").
Calls up the "Login and language" page.
See page 11.
Switches the system on/off. See page 28.
Green The system is switched on
Red The system is switched off
Calls up the "Manual switching" page.
Adjustment options for service engineers
only.
Calls up the "Status, system" page. See
page 12.
Calls up the "Alarm list" page. See
page 12.
Back
Calls up the main side
Operation
Programming unit (cont.)
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Menu
To call up the "Menu" page, tap on the "Menu" button
Fig. 3
Select the required menu point:
■"Heat source", see page 16
■"Heat pump", see page 17
■"T maint.", see page 14
■"HWB", heating water buffer cylinder, see page 15
■"DHW", DHW cylinder (domestic hot water), see
page 19
■"Coolant", coolant buffer cylinder, see page 20
■"Resid. heat", residual heat dissipation, see
page 21
■"Set val.", adjust set values, see page 23
Operation
Programming unit (cont.)
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Login and language
To call up the "Login and language" page, tap on the
button.
Fig. 4
Entry field for the user name
Entry field for the password
Login button
Log off button
Login
Some settings can only be changed after obtaining
authorisation by entering a password.
Settings which may only be performed by the contrac-
tor are not described in these operating instructions.
Your user name for operating the system is Customer.
Your password for operating the system is customer.
Confirm your entry with .
After logging in, the user is displayed on the button.
Note
The user name and password can be changed at the
commissioning stage with the assistance of a commis-
sioning engineer.
Selecting the language
The language is selected by tapping the corresponding
button.
Operation
Programming unit (cont.)
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System status
To call up the "Status, system" page, tap on the but-
ton.
Fig. 5
This page provides information on the various system
statuses.
■A green dot indicates an enable or normal operation.
■A red dot indicates that there is no enable or that a
malfunction is present.
Conditions for enabling the heat pump:
■System mains isolator ON
■Emergency stop button inactive
■PSU enable present
■No priority 1 alarm active
■Heating or cooling demand present
■Pump out, heating water buffer cylinder charging,
coolant buffer cylinder charging or DHW cylinder
charging is switched on
■At least one compressor enable is present
Displaying and acknowledging alarms
To call up the "Alarm list" page, tap on the
"Alarms" button.
Operating statuses that are outside the application lim-
its trigger an alarm. Alarms must be noted and their
causes remedied in order to ensure correct system
operation. If an alarm has been triggered, the alarm
symbol is red.
For an "overview of the fault messages", see
page 30.
Operation
Programming unit (cont.)
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Fig. 6
■Each alarm is shown on a separate line.
■Current alarms that have not been acknowledged
are highlighted in red.
■Acknowledged alarms are highlighted in blue.
■Alarms can only be acknowledged if they are no lon-
ger current. Individual on-site appliances may addi-
tionally need to be acknowledged.
■If you are logged in as the "Customer" user, you can
acknowledge the alarms with the "Acknowl." button.
Operation
Programming unit (cont.)
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High temperature maintenance
To call up the "T maint." page, tap on the following
buttons:
■"Menu"
■"T maint."
Fig. 7
Secondary pump
3-way mixing valve, secondary high temperature
maintenance
ASet and actual values, high temperature mainte-
nance
BInlet temperature, secondary heat pump
Operation
Programming unit (cont.)
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Heating water buffer cylinder
To call up the "HWB" page, tap on the following but-
tons:
■"Menu"
■"HWB"
Fig. 8
Secondary pump
3-way mixing valve, secondary high temperature
maintenance
ASet and actual values, high temperature mainte-
nance
BSet value, heating water buffer cylinder
CHeating water buffer cylinder temperature, top
DHeating water buffer cylinder temperature, bottom
EInlet temperature, secondary heat pump
Operation
Programming unit (cont.)
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Heat source
To call up the "Heat source." page, tap on the follow-
ing buttons:
■"Menu"
■"Heat source"
Fig. 9
ACirculation pump, heat source
BMixing valve, low temperature maintenance
CPrimary pump
DFlow temperature, primary circuit (inlet)
EReturn temperature, primary circuit (outlet)
Operation
Programming unit (cont.)
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Heat pump operation
To call up the "Heat pump" page, tap on the following
buttons:
■"Menu"
■"Heat pump"
Fig. 10
For compressor 1, 2 and 3, see the following chap-
ter
White Switched OFF
Green Switched ON
Red Fault
A"Low press." evaporation temperature, calculated
from pressure
BInlet temperature, evaporator
COutlet temperature, evaporator
DElectronic expansion valve (EEV) with degree of
opening
E3-way valve, compressor superheating, with
degree of opening
FRoom temperature
GCasing temperature
H"High press." condensing temperature, calculated
from pressure
JInlet temperature, condenser
KHot gas temperature
LOutlet temperature, condenser
MOil pressure differential
NSuction gas temperature downstream of IHE
OCompressor superheating downstream of IHE
PInternal heat exchanger (IHE)
REvaporation superheating
SSuction gas temperature downstream of evapora-
tor
Operation
Programming unit (cont.)
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Compressor
To call up the "Comprssr" page, tap on the following
buttons:
■"Menu"
■"Heat pump"
■Symbol (compressor 1, 2 or 3)
Fig. 11
Buttons and displays of the compressors
■"Control switch"
Indicates whether the compressor is switched on or
off. Only qualified personnel are permitted to make
changes
■"Op."
Indicates whether the selected compressor is in
operation
■"Fault"
Indicates whether there is a fault with the compres-
sor
■"Hours run"
Number of hours run by the compressor
■"Activations"
Number of compressor activations
■"Restart block"
Remaining runtime until compressor enable
■"Oil sump heater"
Remaining runtime until compressor enable
Operation
Programming unit (cont.)
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Domestic hot water cylinder (DHW)
To call up the "DHW cylinder" page, tap on the follow-
ing buttons:
■"Menu"
■"DHW"
DHW heating takes priority over central heating.
Charging of the heating water buffer cylinder is inter-
rupted until DHW heating has finished.
Fig. 12
ASet and actual values, high temperature mainte-
nance
BInlet temperature, DHW cylinder
CDHW circulation pump
DSet value for DHW cylinder
EDHW cylinder temperature
FMixing valve, DHW
GCylinder loading pump
HMixing valve, secondary high temperature mainte-
nance
KSecondary pump
LInlet temperature, secondary heat pump
Operation
Programming unit (cont.)
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20
Coolant buffer cylinder
To call up the "Coolant buffer cylinder" page, tap on
the following buttons:
■"Menu"
■"Coolant"
Fig. 13
ASet value for coolant buffer cylinder
BCoolant buffer cylinder temperature, top
CCoolant circulation pump
DMixing valve, low temperature maintenance
EPrimary pump
FInlet temperature, primary heat pump
GOutlet temperature, primary heat pump
HFlow temperature, coolant buffer cylinder
KCoolant buffer cylinder temperature, bottom
Cooling method
"AC" "Active cooling": The coolant buffer cylinder is
actively cooled by the heat pump
"NC" "Natural cooling": The coolant buffer cylinder is
cooled by the heat source (e.g. geothermal
probes)
Operation
Programming unit (cont.)
5801 531 GB