Viessmann VITOTRONIC 200 - Page 97

97
DHW circulation pump
The DHW circulation pump transports the DHW
around a ring pipeline between the DHW cylinder and
the draw-off points (e.g. hot tap). This ensures that hot
water is rapidly available at the draw-off point.
Two-stage heat pumps
Two-stage heat pumps have 2 compressors. This
increases total output.
The two compressors may be installed in a single heat
pump casing or in 2 adjacent heat pump casings.
System equipment and functions
To be entered by the contractor
Heat pump Vitocal Type
■
Air/water heat pump
=
■
Air/water heat pump with indoor and outdoor units
Outdoor unit 230 V~
=
Outdoor unit 400 V~
=
■
Brine/water heat pump
=
■
Water/water heat pump
=
■
Heat pump compact appliance /
=
■
Two-stage heat pump /
=
■
Heat pump with output control /
=
Heat pump cascade
=
System equipment level
Ice store and solar air absorber
=
Heating circuits
=
HC1
=
HC2
=
HC3
Cooling circuit
=
HC1
=
HC2
=
HC3
=
SKK
Cylinder
■
Integral DHW cylinder
=
■
Separate DHW cylinder
With 1 temperature sensor, top
=
With 2 temperature sensors, top and bottom
=
■
Heating water buffer cylinder
=
Electric booster heater
■
Instantaneous heating water heater
=
■
Immersion heater (in the DHW cylinder)
=
External heat generator, e.g. oil or gas boiler
=
Appendix
Terminology (cont.)
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