Viessmann VITOCAL 222-G Quick start guide

VIESMANN VITOCAL
Compact heat pumps
5.9 to 10.3 kW
VITOCAL 222-G
Compact heat pump
■Brine/water heat pump
■DHW cylinder with 170 litre capacity
■Circulation pumps for brine and heating circuit
■Optional natural cooling function
VITOCAL 242-G
Compact heat pump
■As per Vitocal 222-G, additionally prepared for utilisation of
solar energy
■DHW cylinder with 220 litre capacity
VITOCAL 333-G/333-G NC
Compact heat pump
■Brine/water heat pump with highly efficient refrigerant circuit
■DHW cylinder with 170 litre capacity
■High efficiency DC pumps (in accordance with Energy
Label A) for brine and heating circuits
■Vitocal 333-G NC additionally has all components integrated
for natural cooling
VITOCAL 343-G
Compact heat pump
■As per Vitocal 333-G, additionally prepared for utilisation of
solar energy
■DHW cylinder with 220 litre capacity
5442 498 GB 9/2009
Technical guide

Index
1. Principles 1. 1 Heat yield .................................................................................................................. 5
■Thermal flux .......................................................................................................... 5
■Yielding heat with geothermal collectors/geothermal probes ................................ 5
■ Operating modes .................................................................................................. 6
■Drying buildings (higher heat demand) ................................................................. 7
■Coefficient of performance and seasonal performance factor .............................. 8
1. 2 Cooling ...................................................................................................................... 8
■ Utilisation of the primary source ............................................................................ 8
1. 3 Noise development ................................................................................................... 9
■Sound .................................................................................................................... 9
■ Sound power level and sound pressure level ....................................................... 10
■ Propagation of sound in buildings ......................................................................... 11
2. Product overview 2. 1 Product features/standard delivery ........................................................................... 12
3. Vitocal 222-G 3. 1 Product description ................................................................................................... 13
3. 2 Specification ............................................................................................................. 14
■ Specification .......................................................................................................... 14
■ Dimensions ........................................................................................................... 16
4. Vitocal 242-G 4. 1 Product description ................................................................................................... 17
4. 2 Specification ............................................................................................................. 18
■ Specification .......................................................................................................... 18
■ Dimensions ........................................................................................................... 21
5. Vitocal 222-G/242-G output dia-
grams
5. 1 400 V appliances ...................................................................................................... 22
5. 2 230 V appliances ...................................................................................................... 25
6. Vitocal 222-G/242-G pump curves 6. 1 Residual head ........................................................................................................... 28
7. Vitocal 333-G/333-G NC 7. 1 Product description ................................................................................................... 29
7. 2 Specification ............................................................................................................. 30
■ Specification .......................................................................................................... 30
■ Dimensions ........................................................................................................... 32
8. Vitocal 343-G 8. 1 Product description ................................................................................................... 33
8. 2 Specification ............................................................................................................. 34
■ Specification .......................................................................................................... 34
■ Dimensions ........................................................................................................... 35
9. Output diagrams Vitocal 333-G/
343-G
9. 1 400 V appliances ...................................................................................................... 37
10. Pump curves Vitocal 333-G/343-G 10. 1 Residual head ........................................................................................................... 40
11. Installation accessories 11. 1 Primary circuit (brine) ................................................................................................ 41
■ Brine accessory pack (internal) ............................................................................. 41
■ Brine distributor for geothermal collectors ............................................................ 41
■ Brine distributor for geothermal probes/geothermal collectors ............................. 42
■ Heat transfer medium "Tyfocor" ............................................................................ 43
■ Brine circuit pressure switch ................................................................................. 43
■ Filling station ......................................................................................................... 44
11. 2 Hydraulic connection accessories ............................................................................ 44
■ Primary/secondary circuit connection set ............................................................. 44
■ Heating circuit flow/return connection set ............................................................. 44
■ Pre-assembly connection set ................................................................................ 45
■ DHW circulation connection set ............................................................................ 45
■ Solar circuit connection (only Vitocal 242-G/343-G) ............................................. 45
■ DHW heating connection ...................................................................................... 45
11. 3 Secondary circuit ...................................................................................................... 46
■ Heat meter ............................................................................................................ 46
■ Instantaneous heating water heater ...................................................................... 46
11. 4 DHW heating ............................................................................................................ 46
■ Safety equipment to DIN 1988 .............................................................................. 46
■ Impressed current anode ...................................................................................... 46
11. 5 Solar ......................................................................................................................... 47
■ Solar collectors ..................................................................................................... 47
■ Heat transfer medium "Tyfocor LS" ...................................................................... 47
■ Collector temperature sensor ................................................................................ 47
Index
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11. 6 Cooling ...................................................................................................................... 47
■ NC-Box ................................................................................................................. 47
■ Fan convectors Vitoclima 200-C ........................................................................... 48
11. 7 Additional accessories .............................................................................................. 51
■ Platform for unfinished floors ................................................................................ 51
■ Drain outlet kit ....................................................................................................... 51
■ Casing panels (side) ............................................................................................. 51
■ Transport aid ......................................................................................................... 51
12. Design information 12. 1 Positioning ................................................................................................................ 52
■ Installation room requirements .............................................................................. 52
■ Water quality and heat transfer medium ............................................................... 56
■ DHW connection (to DIN 1988) ............................................................................ 56
■ Connections .......................................................................................................... 57
12. 2 Power supply and tariffs ........................................................................................... 58
■ Application procedure ........................................................................................... 58
12. 3 Overview of possible system versions ...................................................................... 58
12. 4 Sizing the heat pump ................................................................................................ 59
■ Mono-mode operation ........................................................................................... 59
■ Mono-energetic operation ..................................................................................... 59
■ Supplement for DHW heating ............................................................................... 60
■ Supplement for setback mode .............................................................................. 60
12. 5 Heat source for brine/water heat pumps ................................................................... 60
■ Frost protection ..................................................................................................... 60
■ Geothermal collector ............................................................................................. 60
■ Geothermal probe ................................................................................................. 63
■ Expansion vessel, brine circuit .............................................................................. 64
■ Pipework, primary circuit ....................................................................................... 64
■ Pump output supplements (percentage) for operation with Tyfocor ..................... 66
12. 6 Heat source for water/water heat pumps .................................................................. 66
■ Groundwater ......................................................................................................... 66
■ Calculating the required groundwater volume ...................................................... 67
■ Permits for a groundwater/water heat pump system ............................................ 67
■ Sizing the heat exchanger, primary circuit ............................................................ 68
12. 7 Heating circuit distributor and heat distributor .......................................................... 68
12. 8 Sizing of the heating water buffer cylinder ................................................................ 68
■ Heating water buffer cylinder for optimised runtimes ............................................ 68
■ Heating water buffer cylinder for bridging periods when the supply is blocked .... 68
12. 9 Natural cooling function ............................................................................................ 69
■ Function description .............................................................................................. 69
■ NC-Box ................................................................................................................. 69
■ Natural cooling with the NC-Box ........................................................................... 69
■ Cooling with an underfloor heating system ........................................................... 70
■ Cooling with fan convectors Vitoclima 200-C (accessory) .................................... 71
12.10 Only for the Vitocal 242-G/343-G: Connecting solar collectors ................................ 71
■ Sizing the solar expansion vessel ......................................................................... 71
13. Heat pump control unit 13. 1 Vitotronic 200, type WO1A ....................................................................................... 72
■ Structure and functions ......................................................................................... 72
■ Functions .............................................................................................................. 73
■ Time switch ........................................................................................................... 73
■ Setting the operating programs ............................................................................. 73
■ Frost protection function ....................................................................................... 74
■ Heating and cooling curve settings (slope and level) ............................................ 74
■ Heating systems with heating water buffer cylinder or low loss header ................ 74
■ Cylinder temperature sensor ................................................................................. 74
■ Outside temperature sensor ................................................................................. 75
13. 2 Specification Vitotronic 200, type WO1A .................................................................. 75
Index (cont.)
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13. 3 Control unit accessories ........................................................................................... 75
■ Contactor relay ...................................................................................................... 75
■ Contact temperature sensor as system flow temperature sensor ......................... 76
■ Cylinder temperature sensor ................................................................................. 76
■ Thermostat for controlling the swimming pool temperature .................................. 76
■ Contact temperature sensor (only Vitocal 333-G/343-G) ...................................... 77
■ Mixer motor ........................................................................................................... 77
■ Extension kit for one heating circuit with mixer with integral mixer motor ............. 77
■ Extension kit for one heating circuit with mixer for separate mixer motor ............. 78
■ Immersion thermostat ........................................................................................... 78
■ Contact thermostat ................................................................................................ 79
■ Vitotrol 200 ............................................................................................................ 79
■ Room temperature sensor .................................................................................... 80
■ KM BUS distributor ............................................................................................... 80
■ External extension H1 ........................................................................................... 80
■ Mounting base for programming unit .................................................................... 81
■ Vitocom 100, type GSM ........................................................................................ 81
■ Vitocom 200, type GP1 ......................................................................................... 81
■ Vitocom 300, type FA5, FI2, GP2 and LAN .......................................................... 82
■ LON communication module ................................................................................. 83
■ LON connecting cable for data exchange between control units .......................... 84
■ Extension of the connecting cable ........................................................................ 84
■ Terminator ............................................................................................................. 84
■ Three-phase monitor (only Vitocal 222-G/242-G) ................................................. 84
14. Appendix 14. 1 Regulations and Directives ....................................................................................... 84
14. 2 Glossary .................................................................................................................... 85
14. 3 Manufacturer's addresses ........................................................................................ 86
14. 4 Overview - engineering steps for a heat pump system ............................................. 87
14. 5 Calculating the seasonal performance factor ........................................................... 87
15. Keyword index .............................................................................................................................................. 88
Index (cont.)
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1.1 Heat yield
Thermal flux
Ground
or
well
circuit
Primary
circuit
(brine)
Cooling
circuit
Heating
system
The ground as a heat source
Flat-plate collectors or geothermal probes extract heat from the
ground. The primary circuit (brine) transfers this heat to the cooling
circuit of the heat pump. There, the higher temperature level required
for the heating system is achieved.
Water as a heat source (well circuit)
The water circulating in the well circuit transfers the heat to the primary
circuit (brine). From here, heat is transferred in the same way as heat
extracted from the ground. For this reason, many brine/water heat
pumps can be converted to a water/water heat pump with a conversion
kit.
Yielding heat with geothermal collectors/geothermal probes
Yielding heat with geothermal collectors
The amount of energy that can be extracted from the ground depends
on various factors.
■ According to current knowledge, ground rich in clay with plenty of
water is a particularly good heat source.
Experience has shown that a specific heat extraction (cooling
capacity) of qE = 10 to 35 W/m2 ground area can be assumed as
annual average for operation all the year round (mono-mode) (see
also chapter "Design information").
■ The energy extraction rate for very sandy soil is lower. If in doubt,
an expert opinion should be sought.
Increasing solar irradiation and precipitation during the second half of
the heating season regenerate the cooled-down ground ensuring that
the ground "energy store" will again be available for heating purposes
during the forthcoming heating season.
Generally, the following must be observed:
■ Deep-rooted plants should not be located in the vicinity of the brine
pipes.
■ Never seal the surfaces above the geothermal collector. Sealing the
surfaces prevents the ground from being regenerated.
Principles
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B
F
C
D
E
A
min. 5 m
C
G
D
E
1.2 to 1.5 m
AHeat pump
BLow temperature central heating
CCommon duct with brine distributor
DBrine distributor for geothermal collectors or probes (flow)
EBrine distributor (return)
FGeothermal collector:
Total length of one line: ≤ 100 m
GGeothermal probe (Duplex probe)
Yielding heat with geothermal probes
Under standard hydro geological conditions, an average extraction
capacity of 50 W/m probe length can be assumed for geothermal probe
systems (according to VDI 4640).
Boreholes:
■ Boreholes to a depth < 100 m are subject to approval from your local
water board.
■ Boreholes to a depth > 100 m must be approved by your local mining
board.
Drilling contractors certified according to the DVGW Code of Practice
W 120 should be engaged to carry out the drilling work. Viessmann
recommends the work to be carried out by the geothermal energy
department of Viessmann Deutschland GmbH (see "Manufacturer's
addresses" in the appendix).
Operating modes
The operating mode of heat pumps depends largely on the selected
or existing heat distribution system.
Subject to the individual model, Viessmann heat pumps reach a flow
temperature of up to 65 ºC. At higher flow temperatures or at very low
outside temperatures an additional heat source (mono-energetic or
dual mode operation) may be required to cover the heat load.
In a new build, any heat distribution system can usually be selected.
However, high seasonal performance factors can only be achieved in
heat pumps in conjunction with a heat distribution system with low flow
temperatures (max. 35 °C).
Mono-mode operation
In mono-mode operation, the heat pump alone covers the entire heat
load of a building to EN 12831. This operating mode requires that the
heat distribution system is designed for a flow temperature below the
max. flow temperature of the heat pump.
When sizing the heat pump, allowances must be made to cover power-
OFF periods and special tariffs provided by the power supply utility.
Dual mode operation
In dual mode operation, the heat pump system is supplemented during
heating operation by an additional heat source, e.g. an oil/gas boiler.
This heat source is controlled by the heat pump control unit.
Mono-energetic operation
Dual mode operation, where the additional heat source and the com-
pressor are operated electrically. An additional heat source could be
an instantaneous heating water heater in the secondary circuit.
In typical system configurations, the heating output of the heat pump
is designed for approx. 70 to 85 % of the maximum required heat load
of the building (in accordance with EN 12831). The heat pump covers
approx. 92 to 98 % of the annual heat load.
Principles (cont.)
6VIESMANN VITOCAL
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Cover ratio in mono-energetic operation
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100
Heat pump proportion of maximum
output (DIN EN 12831) in %
Coverage by the heat pump as a % of the annual heating load
Cover ratio of the heat pump in % of the annual heat load (heating only)
of a standardised domestic building, subject to the heat pump heating
output in mono-energetic operation
Due to the low investment costs for the heat pump, compared to mono-
mode operation, operating a heat pump in mono-energetic mode offers
economic advantages, particularly in new builds.
Dual mode parallel operation
Subject to the outside temperature and heat load, the heat pump con-
trol unit starts the second heat source in addition to the heat pump.
In typical system configurations, the heating output of the heat pump
is designed for approx. 50 to 70 % of the maximum required heat load
of the building in accordance with DIN EN 12831. The heat pump cov-
ers approx. 85 to 92 % of the annual heat load.
Dual mode alternative operation
Above a certain outside temperature (dual mode temperature), the
heat pump covers the entire heat supply of the building. Below the dual
mode temperature, the heat pump switches off and the additional heat
source (oil/gas boiler) takes over the sole heat provision for the build-
ing. The changeover between the heat pump and additional heat
source is controlled by the heat pump control unit.
The dual mode alternative operating mode is particularly suitable for
existing buildings with conventional heat distribution and transfer sys-
tems (radiators).
Cover ratio of dual mode operation
Heat pump proportion of the maximum
output (DIN EN 12831) in %
0 10 20 30 40 50 60 70 80 90 100
0
10
20
30
40
50
60
70
80
90
100
Coverage by the heat pump as a % of the annual heating load
Cover ratio of the heat pump in % of the annual heat load (heating only)
of a standardised domestic building, subject to the heat pump heating
output and the selected operating mode.
ADual mode parallel operation
BDual mode alternative operation
Due to the lower investment costs for the entire heat pump system, the
dual mode operation is particularly suitable for existing boiler systems
in renovated buildings.
Note
With dual mode parallel operation, the heat source (ground) must be
sized, due to the longer running times (compared to dual mode alter-
native operation) so it can cover the entire output demand of the
building.
Power supply tariffs
Most power supply utilities offer special tariffs to enable the cost-effec-
tive operation of heat pumps.
Providing these special tariffs enables the power supply utility to tem-
porarily interrupt the power supply to heat pumps during peak times.
In mono mode operation, the power supply may be blocked for a max-
imum of 3 x 2 hours within a 24-hour period.In underfloor heating sys-
tems, the power-OFF periods have no noticeable effect on the room
temperature due to system inertia. With other systems, power-OFF
periods can be bridged by using heating water buffer cylinders.
The power supply to dual mode heat pump systems can be blocked
for a maximum of 1110 hours within the heating season. During such
times, the additional heat source can meet the entire heat demand of
the building.
Note
The ON periods between two power-OFF periods must not be shorter
than the previous power-OFF period.
There are no special tariffs available for uninterrupted power supply.
In this case, the heat pump power consumption is billed together with
the domestic or commercial power consumption.
Drying buildings (higher heat demand)
Subject to construction (e.g. monolithic), new buildings contain large
amounts of water held in tile or cement screeds, plaster finish etc.
This bound moisture must be evaporated through heating to prevent
damage to the building. This requires a higher heat demand compared
to the conventional heating of a building.
The heat pump with the primary source is not designed for the higher
heat demand required in such cases. This demand must be covered
by drying equipment provided on site or by an additional instantaneous
heating water heater (accessory).
Principles (cont.)
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Screed drying
Top covers (such as tiles, parquet etc.) permit only minor residual
moisture in the screed prior to their application.
Screed drying also requires a higher heat demand. Air/water and brine/
water heat pumps cover this higher heat demand through a booster
heater designed for screed drying, e.g. an instantaneous heating water
heater.
In water/water heat pumps, it is generally sufficient to increase the
pump rate to cover the higher heat demand.
Coefficient of performance and seasonal performance factor
To assess the efficiency of the electrically operated compression heat
pumps, the EN 14511 standard specifies the coefficient of perform-
ance and performance factor parameters.
Coefficient of performance
The coefficient of performance ∊ is the ratio of the current heating out-
put to the effective power consumption of the appliance.
∊=PH
PE
PHHeat (W) per unit of time transferred by the heat pump to the heat-
ing water
PEAverage power consumption of the appliance within a specific
period, incl. power consumption for control unit, compressor, fuel
supply equipment and defrosting (W)
Modern heat pumps have a coefficient of performance between 3.5
and 5.5, i.e. a coefficient of performance 4 means that four times more
heat is available than the electrical energy consumed. The vast major-
ity of the heating energy originates from the heat source (air, ground,
groundwater).
Operating point
The coefficient of performance is measured at fixed operating points.
The operating point is specified by the inlet temperature of the heat
source (air A, brine B, water W) in the heat pump and the heating water
outlet temperature (secondary circuit flow temperature).
Example:
■ Air/water heat pumps
A2/W35: Air intake temperature 2 °C, heating water outlet temper-
ature 35 °C
■ Brine/water heat pumps
B0/W35: Brine inlet temperature 0 °C, heating water outlet temper-
ature 35 °C
■ Water/water heat pumps
W10/W35: Water inlet temperature 10 °C, heating water outlet tem-
perature 35 °C
The lower the temperature differential between the inlet and the outlet
temperature, the higher the coefficient of performance. To increase the
coefficient of performance, it is best to opt for the lowest possible flow
temperature, e.g. 35 ºC, with an underfloor heating system, as the inlet
temperature is subject to the ambient conditions.
Seasonal performance factor
The seasonal performance factor β is the ratio of the annual volume
of heat provided by the heat pump system to the overall electrical
power drawn by the heat pump system over the same period. This
includes the amounts of power used by pumps, control units etc.
β = QHP
WEL
QHP The amount of heat (kWh) delivered by the heat pump over the
course of a year
WEL The total electrical power (kWh) supplied to the heat pump sys-
tem during a year
1.2 Cooling
Utilisation of the primary source
Brine/water and water/water heat pumps can, during spring, summer
or autumn, utilise the temperature level of what is used as heat source
in winter as a heat sink, i.e. to cool the building with natural cooling.
In some heat pumps, the simultaneous operation of the compressor
enables active cooling, which uses the refrigerating capacity of the
compressor.
The heat generated is dissipated via the primary source (or a con-
sumer).
Underground temperatures are relatively constant all the year round.
In undisturbed ground, it is assumed that from a depth of 5 m, there
are only minor temperature fluctuations of ±1.5 K around an average
temperature of 10 °C.
Principles (cont.)
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10 °C
10
5
20151050
Temperature in °C
on the surface of the ground
0
15
18
Depth in m
1 May 1 Aug.
1 Nov.
1 Feb.
Temperature progress in undisturbed ground subject to depth and time
of year
On hot days, buildings heat up through high outside temperatures and
solar irradiation. With the appropriate accessories, brine/water heat
pumps can use the low temperatures underground to dissipate heat
from the building to the ground via the primary circuit.
The heat exchanger connected in series separates the system. In
summer, the temperature level of the heat source (brine) is approx. 12
to 8 °C.
"Natural cooling"/"Active cooling"
Natural cooling is a very efficient cooling function, as cooling only
requires the operation of two heating circuit pumps. For this function,
the heat pump compressor stays off. During natural cooling operation,
the heat pump will only be started to produce DHW.
Natural cooling is possible with the following systems:
■ Underfloor heating systems
■ Fan convectors
■ Chilled ceilings
■ Concrete core tempering
The ambient air can only be dehumidified in conjunction with the nat-
ural cooling function if fan convectors are connected (condensate drain
required).
Cooling capacity
The capability of the natural cooling function cannot generally be com-
pared with that of air conditioning systems or chillers. The cooling
capacity depends on the heat source temperature, which itself is sub-
ject to seasonal fluctuations. Experience has shown that the cooling
capacity is higher at the beginning of summer than at the end.
In active cooling mode, the heat pump operates like a chiller and cools
the building with the available cooling capacity. The constant cooling
capacity available is subject to the output size of the heat pump.
With active cooling, the cooling capacity is significantly higher than with
natural cooling.
Regeneration of the ground
In heating mode, the heap pump extracts heat energy from the ground.
At the end of the heating season, the temperature near the geothermal
probe/collector is around freezing. By the start of the next heating sea-
son, the ground will be sufficiently regenerated. Natural cooling accel-
erates this process by extracting heat from the building and transfer-
ring it to the ground. The average brine temperature may increase
subject to the heat ingress into the ground probe during summer. This
has positive effects on the seasonal performance factor of the heat
pump.
1.3 Noise development
Sound
Human beings are capable of hearing sounds in the pressure range
from 20 ∙ 10–6 Pa (hearing threshold) to 20 Pa (1 to 1 million). The pain
threshold is at around 60 Pa.
Changes in air pressure are perceived provided they take place at a
rate of between 20 and 20,000 times per second (20 Hz to
20,000 Hz).
Sound source Sound level
in dB(A)
Sound pressure
in μPa
Perception
Silence 0 to 10 20 to 63 Inaudible
Ticking of a watch, quiet bedroom 20 200 Very quiet
Very quiet garden, quiet air conditioning 30 630 Very quiet
House or flat in a quiet neighbourhood 40 2 ∙ 103Quiet
Gentle stream 50 6.3 ∙ 103Quiet
Normal speaking volume 60 2 ∙ 104Loud
Loud speaking volume, office noise 70 6.3 ∙ 104Loud
Intensive traffic noise 80 2 ∙ 105Very loud
Heavy-duty truck 90 6.3 ∙ 105Very loud
Car horn at a distance of 5 m 100 2 ∙ 106Very loud
Principles (cont.)
VITOCAL VIESMANN 9
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AStructure-borne noise
BAirborne noise
Structure-borne noise, liquid-borne noise
Mechanical vibrations present in equipment, such as machine and
building components as well as in liquids, are transmitted through them
and radiated out by them at different points as airborne noise.
Airborne noise
Sound sources (equipment in which vibrations are present) create
mechanical vibrations in the air that propagate in wave form and are
audible to the human ear at different levels.
Sound power level and sound pressure level
ASource of sound (heat pump)
Emission site
Measured variable: Sound power level LW
BLocation of incoming sound emission
Immission site
Measured variable: Sound pressure level LP
Sound power level LW
This describes the entire sound emissions in all directions emanating
from the heat pump. It does not depend on the surrounding conditions
(reflections) and is a value that can be used for direct comparisons of
sound sources (heat pumps).
Sound pressure level LP
The sound pressure level is a measure to assist orientation regarding
the volume of noise perceived by the ear at a specific location. The
sound pressure level is largely defined by the distance and the char-
acteristics of the surroundings and is thus dependent upon the meas-
uring location (often at a distance of 1 m). Standard measuring micro-
phones measure the sound pressure directly.
The sound pressure level is the variable that is used to assess imis-
sions from individual systems.
Principles (cont.)
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Propagation of sound in buildings
Sound transmission paths
AHeat pump
BStructure-borne noise
CAirborne noise
DLight well
In buildings, sound generally results from the transmission of structure-
borne noise via the floors and walls. The sound emissions from light
wells frequently not only lead to disturbances around the building but
also inside the owner's property. With poor boundary conditions,
sound immissions can travel through the windows into the house.
Inside the house, there is a risk of airborne noise being transmitted via
the staircase or via the cellar ceiling.
Standard values for sound pressure level according to TA Lärm [Germany] (outside the building)
Area/object Standard immission value (sound pressure level) in
dB(A)
During the day At night
Area with a mix of commercial installations and domestic properties where
neither commercial installations nor domestic properties are dominant
60 45
Areas with predominantly domestic properties 55 40
Area with only domestic properties 50 35
Domestic properties that are structurally connected to the heat pump system 40 30
Principles (cont.)
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2.1 Product features/standard delivery
Function Vitocal
222-G 242-G 333-G 333-G NC 343-G
Optional operation with geothermal
probe
º º º º º
Optional operation with geothermal col-
lector
º º º º º
Instantaneous heating water heater Accessories
Single stage
Accessories
Single stage
Accessories
Three-stage
Accessories
Three-stage
Accessories
Three-stage
Integral primary pump
– Standard circulation pump º º — — —
– High efficiency DC pump — — º º º
Integral heating circuit pump
– Standard circulation pump º º — — —
– High efficiency DC pump — — º º º
Heating circuit without mixer may be
connected
º º º º º
M
Heating circuit with mixer (heating water
buffer cylinder required)
– Can be connected directly — — º—º
– With extension kit º º º —º
Safety equipment for heating circuit in
standard delivery
º º º º º
DHW safety assembly Accessories Accessories Accessories Accessories Accessories
DHW cylinder capacity 170 l 220 l 170 l 170 l 220 l
Connection/control of the DHW circula-
tion pump
º º º º º
Can be operated with heating water buf-
fer cylinder (required for heating circuit
with mixer)
º º º —º
Solar control function — integral — — integral
Ç "Natural Cooling" with accesso-
ries
with accesso-
ries
with accesso-
ries
integral with accesso-
ries
Energy statement/heat metering Accessories Accessories integral integral integral
RCD system with electronic expansion
valve (EEV)
— — º º º
Optional installation in the basement º º º º º
Optional installation in utility rooms º º º º º
Appliance can be split for easier han-
dling
º º º º º
Product overview
12 VIESMANN VITOCAL
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3.1 Product description
AHermetically sealed Compliant scroll compressor
BSecondary pump (heating water)
CPrimary pump (brine)
DThree-way diverter valve "heating/DHW"
EInternal indirect coil for cylinder heating
FWeather-compensated, digital heat pump control unit
Vitotronic 200, type WO1A
GDHW cylinder with 170 litres capacity
■ High coefficient of performance: COP value to EN 14511 up to 4.3
(brine 0 °C/water 35 °C) (COP = coefficient of performance).
■ Maximum flow temperature: 60 ºC.
■ High level of DHW convenience through integral DHW cylinder with
170 litre capacity.
■ Particularly quiet thanks to new sound insulation concept with a
sound power level of 46 dB(A) at 0/35 °C.
■ New Vitotronic control unit that is easy to operate with plain text dis-
play.
■ The programming unit part of the control unit can also be fitted on a
wall mounting base.
■ Ready to connect, ex works.
■ Easy handling through small footprint, reduced height and sectional
casing.
■ Simple installation through variable connection accessories.
Vitocal 222-G
VITOCAL VIESMANN 13
5442 498 GB
3

3.2 Specification
Specification
Vitocal 222-G, 400 V appliances Type BWT 106 BWT 108 BWT 110
Heating output data at 5 K spread (to EN 14511, B0/W35 °C)
Rated heating output kW 5.9 7.7 10.0
Refrigerating capacity kW 4.6 6.0 7.8
Power consumption kW 1.40 1.84 2.32
Coefficient of performance ∊ (COP) 4.2 4.2 4.3
Heating output data at 10 K spread (B0/W35 °C)
Rated heating output kW 6.2 8.0 10.4
Refrigerating capacity kW 4.9 6.4 8.3
Power consumption kW 1.36 1.77 2.23
Coefficient of performance ∊ (COP), heating 4.5 4.5 4.6
Primary circuit (brine)
Capacity l 3.3 3.3 3.9
Minimum flow rate at a spread of 5 K (always maintain) l/h 820 1120 1450
Max. external pressure drop (RFH) at min. flow rate mbar 680 630 590
Max. inlet temperature °C 25 25 25
Min. inlet temperature °C –5 –5 –5
Secondary circuit (heating water)
Content, heat pump l 3.3 3.5 3.8
Content, total l 18.5 18.7 19.0
Minimum flow rate at a spread of 10 K (always maintain) l/h 540*1 710 910
Max. external pressure drop (RFH) at min. flow rate*2 mbar 580 580 540
Max. flow temperature °C 60 60 60
Instantaneous heating water heater
Output kW 9.0 (single stage)
Rated voltage 3/N/PE 400 V/50 Hz
Fuse protection 1× B16 A-3–pole
Electrical values – heat pump
Rated voltage compressor 3/PE 400 V/50 Hz
Rated current, compressor A 5.5 6.0 8.0
Starting current, compressor A 25.0 14.0*3 20.0*3
Starting current compressor (with stalled armature) A 26.0 35.0 48.0
Compressor fuse A 1 × C 16A
-3–pole
1 × Z 16A
-3–pole
1 × Z 16A
-3–pole
Rated voltage control unit/electronics 1/N/PE 230 V/50 Hz
Fuse, control unit/electronics (internal) 6.3 A (slow) / 250 V
Power consumption
– Primary pump at stage 1/2/3 W 81/113/151
– Secondary pump at stage 1/2/3 W 62/92/132
Max. power consumption control unit W 1000 1000 1000
Rated output control unit/electronics W 5 5 5
IP rating IP 20 IP 20 IP 20
Refrigerant circuit
Refrigerant R410A R410A R410A
Fill volume kg 2.1 2.1 2.4
Compressor Type Hermetically sealed scroll compressor
Permiss. operating pressure refrigerant circuit high pressure bar 43 43 43
Permiss. operating pressure refrigerant circuit low pressure bar 28 28 28
Dimensions
– Total length mm 680 680 680
– Total width mm 600 600 600
– Total height mm 1829 1829 1829
Total weight kg 250 250 256
Permiss. operating pressure
Primary circuit (brine) bar 3.0 3.0 3.0
Secondary circuit (heating water) bar 3.0 3.0 3.0
DHW bar 10.0 10.0 10.0
*1 600 l/h with instantaneous heating water heater
*2 Without integral heat meter
*3 With full wave soft starter
Vitocal 222-G (cont.)
14 VIESMANN VITOCAL
3
5442 498 GB

Vitocal 222-G, 400 V appliances Type BWT 106 BWT 108 BWT 110
Connections
Primary flow and return (brine) mm Cu 28 x 1
Heating flow and return mm Cu 28 x 1
Cold water, hot water RP¾
DHW circulation G 1
Sound power level (at B0/W35 °C) dB(A) 46 46 46
Vitocal 222-G, 230 V appliances Type BWT 106 BWT 108 BWT 110
Heating output data at 5 K spread (to EN 14511, B0/W35 °C)
Rated heating output kW 6.0 7.8 10.1
Refrigerating capacity kW 4.6 6.0 7.9
Power consumption kW 1.50 1.85 2.34
Coefficient of performance ∊ (COP) 4.0 4.2 4.3
Heating output data at 10 K spread (B0/W35 °C)
Rated heating output kW 6.2 8.0 10.4
Refrigerating capacity kW 4.9 6.4 8.3
Power consumption kW 1.45 1.77 2.27
Coefficient of performance ∊ (COP), heating 4.3 4.5 4.6
Primary circuit (brine)
Capacity l 3.3 3.3 3.9
Minimum flow rate at a spread of 5 K (always maintain) l/h 870 1050 1450
Max. external pressure drop (RFH) at min. flow rate mbar 670 640 590
Max. inlet temperature °C 25 25 25
Min. inlet temperature °C –5 –5 –5
Secondary circuit (heating water)
Content, heat pump l 3.3 3.5 3.8
Content, total l 18.5 18.7 19.0
Minimum flow rate at a spread of 10 K (always maintain) l/h 540*1 710 910
Max. external pressure drop (RFH) at min. flow rate*2 mbar 580 581 540
Max. flow temperature °C 60 60 60
Instantaneous heating water heater
Output kW 9.0 (single stage)
Rated voltage 1/N/PE 230 V/50 Hz
Fuse protection 3× B16A single pole
Electrical values – heat pump
Rated voltage compressor 1/N/PE 230 V/50 Hz
Rated current, compressor A 16.0 17.1 23.0
Starting current, compressor A 45.0 45.0 45.0
Starting current compressor (with stalled armature) A 58.0 67.0 98.0
Compressor fuse A 1 × Z 16A
-1–pole
1 × Z 20
-1–pole
1 × Z 25
-1–pole
Rated voltage control unit/electronics 1/N/PE 230 V/50 Hz
Fuse, control unit/electronics (internal) 6.3 A (slow) / 250 V
Power consumption
– Primary pump at stage 1/2/3 W 81/113/151
– Secondary pump at stage 1/2/3 W 62/92/132
Max. power consumption control unit W 1000 1000 1000
Rated output control unit/electronics W 5 5 5
IP rating IP 20 IP 20 IP 20
Refrigerant circuit
Refrigerant R410A R410A R410A
Fill volume kg 2.1 2.1 2.4
Compressor Type Hermetically sealed scroll compressor
Permiss. operating pressure refrigerant circuit high pressure bar 43 43 43
Permiss. operating pressure refrigerant circuit low pressure bar 28 28 28
Dimensions
– Total length mm 680 680 680
– Total width mm 600 600 600
– Total height mm 1829 1829 1829
Total weight kg 250 250 256
Permiss. operating pressure
Primary circuit (brine) bar 3.0 3.0 3.0
Secondary circuit (heating water) bar 3.0 3.0 3.0
DHW bar 10.0 10.0 10.0
*1 600 l/h with instantaneous heating water heater
*2 Without integral heat meter
Vitocal 222-G (cont.)
VITOCAL VIESMANN 15
5442 498 GB
3

Vitocal 222-G, 230 V appliances Type BWT 106 BWT 108 BWT 110
Connections
Primary flow and return (brine) mm Cu 28 x 1
Heating flow and return mm Cu 28 x 1
Cold water, hot water RP¾
DHW circulation G 1
Sound power level (at B0/W35 °C) dB(A) 46 46 46
Dimensions
454
564
665
680
1804
1829
600
218
147
69
134
159
62
300
387
500
1800
D E
F
G
A
DE GF
A
B
C
29
/
80
ADHW
BDHW circulation
CCold water
DPrimary circuit return (heat pump brine outlet)
EPrimary circuit flow (heat pump brine inlet)
FSecondary circuit flow (heating water)
GSecondary circuit return (heating water)
Note
To connect the hydraulic lines (D to G) on-site, use the straight connectors (standard delivery).
With connection set primary/secondary circuit, use the connection bends supplied with the accessories.
Vitocal 222-G (cont.)
16 VIESMANN VITOCAL
3
5442 498 GB

4.1 Product description
AHermetically sealed Compliant scroll compressor
BSecondary pump (heating water)
CPrimary pump (brine)
DThree-way diverter valve "heating/DHW"
ECylinder primary pump with PWM control
FSolar indirect coil
GWeather-compensated, digital heat pump control unit
Vitotronic 200, type WO1A
HHeating lance for cylinder heating
KDHW cylinder with 220 litre capacity
■ High coefficient of performance: COP value to EN 14511 up to 4.3
(brine 0 °C/water 35 °C) (COP = coefficient of performance).
■ Maximum flow temperature: 60 ºC.
■ High level of DHW convenience through integral DHW cylinder with
220 litre capacity.
■ Particularly quiet thanks to new sound insulation concept with a
sound power level of 46 dB(A) at 0/35 °C.
■ New Vitotronic control unit that is easy to operate with plain text dis-
play.
■ The programming unit part of the control unit can also be fitted on a
wall mounting base.
■ Ready to connect, ex works.
■ Easy handling through small footprint, reduced height and sectional
casing.
■ Simple installation through variable connection accessories.
Vitocal 242-G
VITOCAL VIESMANN 17
5442 498 GB
4

4.2 Specification
Specification
Vitocal 242-G, 400 V appliances Type BWT 106 BWT 108 BWT 110
Heating output data at 5 K spread (to EN 14511, B0/W35 °C)
Rated heating output kW 5.9 7.7 10.0
Refrigerating capacity kW 4.6 6.0 7.8
Power consumption kW 1.40 1.84 2.32
Coefficient of performance ∊ (COP) 4.2 4.2 4.3
Heating output data at 10 K spread (B0/W35 °C)
Rated heating output kW 6.2 8.0 10.4
Refrigerating capacity kW 4.9 6.4 8.3
Power consumption kW 1.36 1.77 2.23
Coefficient of performance ∊ (COP), heating 4.5 4.5 4.6
Primary circuit (brine)
Capacity l 2.8 3.1 3.4
Minimum flow rate at a spread of 5 K (always maintain) l/h 820 1120 1450
Max. external pressure drop (RFH) at min. flow rate mbar 680 630 590
Max. inlet temperature °C 25 25 25
Min. inlet temperature °C –5 –5 –5
Secondary circuit (heating water)
Content, heat pump l 3.3 3.5 3.8
Content, total l 6.2 6.4 6.7
Minimum flow rate at a spread of 10 K (always maintain) l/h 540*1 710 910
Max. external pressure drop (RFH) at min. flow rate*2 mbar 580 580 540
Max. flow temperature °C 60 60 60
Solar circuit
Capacity l 7.2 7.2 7.2
Instantaneous heating water heater
Output kW 9.0 (single stage)
Rated voltage 3/N/PE 400 V/50 Hz
Fuse protection 3× B16A single pole
Electrical values – heat pump
Rated voltage compressor 3/PE 400 V/50 Hz
Rated current, compressor A 5.5 6.0 8.0
Starting current, compressor A 25.0 14.0*3 20.0*3
Starting current compressor (with stalled armature) A 26.0 35.0 48.0
Compressor fuse A 1 × C 16A
-3–pole
1 × Z 16
-3–pole
1 × Z 16
-3–pole
Rated voltage control unit/electronics 1/N/PE 230 V/50 Hz
Fuse, control unit/electronics (internal) 6.3 A (slow) / 250 V
Power consumption
– Primary pump at stage 1/2/3 W 81/113/151
– Secondary pump at stage 1/2/3 W 62/92/132
– Cylinder primary pump (PWM) W 31-88
Max. power consumption control unit W 1000 1000 1000
Rated output control unit/electronics W 5 5 5
IP rating IP 20 IP 20 IP 20
Refrigerant circuit
Refrigerant R410A R410A R410A
Fill volume kg 2.1 2.1 2.4
Compressor Type Hermetically sealed scroll compressor
Permiss. operating pressure refrigerant circuit high pressure bar 43 43 43
Permiss. operating pressure refrigerant circuit low pressure bar 28 28 28
Dimensions
– Total length mm 680 680 680
– Total width mm 600 600 600
– Total height mm 2075 2075 2075
Total weight kg 260 260 266
Permiss. operating pressure
Primary circuit (brine) bar 3.0 3.0 3.0
Secondary circuit (heating water) bar 3.0 3.0 3.0
DHW bar 10.0 10.0 10.0
Solar circuit bar 6.0 6.0 6.0
*1 600 l/h with instantaneous heating water heater
*2 Without integral heat meter
*3 With full wave soft starter
Vitocal 242-G (cont.)
18 VIESMANN VITOCAL
4
5442 498 GB

Vitocal 242-G, 400 V appliances Type BWT 106 BWT 108 BWT 110
Connections
Primary flow and return (brine) mm Cu 28 x 1
Heating flow and return mm Cu 28 x 1
Cold water, hot water RP¾
DHW circulation G 1
Heating water flow and return, solar thermal system Viessmann pipe sleeve DN 20 multi-connect system
DHW cylinder
Capacity l 220 220 220
Constant DHW output for heating DHW from 10 to 60 °C (B2/W55 °C) l/h 241 275 309
DHW performance factor NL to DIN 4708 1.5 1.5 1.6
Max. DHW drawing rate at the stated DHW performance factor NL and DHW
heating from 10 to 45 °C
l/min 16.8 16.8 17.3
Max. collector area with orientation to the south:
Flat plate collector / tube collector
m25 / 3 5 / 3 5 / 3
Permissible DHW temperature in the DHW cylinder °C 95 95 95
Sound power level (at B0/W35 °C) dB(A) 46 46 46
Vitocal 242-G, 230 V appliances Type BWT 106 BWT 108 BWT 110
Heating output data at 5 K spread (to EN 14511, B0/W35 °C)
Rated heating output kW 6.0 7.8 10.1
Refrigerating capacity kW 4.6 6.0 7.9
Power consumption kW 1.50 1.85 2.34
Coefficient of performance ∊ (COP) 4.0 4.2 4.3
Heating output data at 10 K spread (B0/W35 °C)
Rated heating output kW 6.2 8.0 10.4
Refrigerating capacity kW 4.9 6.4 8.3
Power consumption kW 1.45 1.77 2.27
Coefficient of performance ∊ (COP), heating 4.3 4.5 4.6
Primary circuit (brine)
Capacity l 2.8 3.1 3.4
Minimum flow rate at a spread of 5 K (always maintain) l/h 870 1050 1450
Max. external pressure drop (RFH) at min. flow rate mbar 670 640 590
Max. inlet temperature °C 25 25 25
Min. inlet temperature °C –5 –5 –5
Secondary circuit (heating water)
Content, heat pump l 3.3 3.5 3.8
Content, total l 6.2 6.4 6.7
Minimum flow rate at a spread of 10 K (always maintain) l/h 540*1 710 910
Max. external pressure drop (RFH) at min. flow rate*2 mbar 580 581 540
Max. flow temperature °C 60 60 60
Solar circuit
Capacity l 7.2 7.2 7.2
*1 600 l/h with instantaneous heating water heater
*2 Without integral heat meter
Vitocal 242-G (cont.)
VITOCAL VIESMANN 19
5442 498 GB
4

Vitocal 242-G, 230 V appliances Type BWT 106 BWT 108 BWT 110
Instantaneous heating water heater
Output kW 9.0 (single stage)
Rated voltage 1/N/PE 230 V/50 Hz
Fuse protection 3× B16A single pole
Electrical values – heat pump
Rated voltage compressor 1/N/PE 230 V/50 Hz
Rated current, compressor A 16.0 17.1 23.0
Starting current, compressor A 45.0 45.0 45.0
Starting current compressor (with stalled armature) A 58.0 67.0 98.0
Compressor fuse A 1 × Z 16A
-1–pole
1 × Z 20
-1–pole
1 × Z 25
-1–pole
Rated voltage control unit/electronics 1/N/PE 230 V/50 Hz
Fuse, control unit/electronics (internal) 6.3 A (slow) / 250 V
Power consumption
– Primary pump at stage 1/2/3 W 81/113/151
– Secondary pump at stage 1/2/3 W 62/92/132
– Cylinder primary pump (PWM) W 31-88
Max. power consumption control unit W 1000 1000 1000
Rated output control unit/electronics W 5 5 5
IP rating IP 20 IP 20 IP 20
Refrigerant circuit
Refrigerant R410A R410A R410A
Fill volume kg 2.1 2.1 2.4
Compressor Type Hermetically sealed scroll compressor
Permiss. operating pressure refrigerant circuit high pressure bar 43 43 43
Permiss. operating pressure refrigerant circuit low pressure bar 28 28 28
Dimensions
– Total length mm 680 680 680
– Total width mm 600 600 600
– Total height mm 2075 2075 2075
Total weight kg 260 260 266
Permiss. operating pressure
Primary circuit (brine) bar 3.0 3.0 3.0
Secondary circuit (heating water) bar 3.0 3.0 3.0
DHW bar 10.0 10.0 10.0
Solar circuit bar 6.0 6.0 6.0
Connections
Primary flow and return (brine) mm Cu 28 x 1
Heating flow and return mm Cu 28 x 1
Cold water, hot water RP¾
DHW circulation G 1
Heating water flow and return, solar thermal system Viessmann pipe sleeve DN 20 multi-connect system
DHW cylinder
Capacity l 220 220 220
Constant DHW output for heating DHW from 10 to 60 °C (B2/W55 °C) l/h 241 275 309
DHW performance factor NL to DIN 4708 1.5 1.5 1.5
Max. DHW drawing rate at the stated DHW performance factor NL and DHW
heating from 10 to 45 °C
l/min 16.8 16.8 17.3
Max. collector area with orientation to the south:
Flat plate collector / tube collector
m25 / 3 5 / 3 5 / 3
Permissible DHW temperature in the DHW cylinder °C 95 95 95
Sound power level (at B0/W35 °C) dB(A) 46 46 46
Vitocal 242-G (cont.)
20 VIESMANN VITOCAL
4
5442 498 GB