alterra WZS-series – ground source heatstations for indoor installatiom

WZS 102K3M

Article Number 10066842

The space saver - the entire heating system on half a square meter.

Operating limit flow temperature 20°C to 65°C
Recommended range of application heat source -5°C to 25°C

The heat pumps are recommended for the following total heating demand:
WZS 42H(K)3M = ca. 5 kW; WZS 82H(K)3M = ca. 8 kW; WZS 102H(K)3M = ca. 10 kW; WZS 122H(K)3M = ca. 12 kW

For faster installation, the system comes with the following components:

  • Domestic hot water tank 178 l with impressed current anode
    (flow rate 240 l - ErP 40 °C, removal of 10 l / min)
  • Heat pump controller Luxtronik 2.1
  • Energy efficient circulation pump heating circuit
  • Switching valve heating and domestic hot water preparation
  • Overflow valve heating circuit
  • Electronic heating element 9kW for support during heating operation and domestic hot water preparation
  • Vibration decoupling brine and heating circuit
  • Shut-off valve for the heat source circuit
  • Heat quantity recording
  • Refrigerating circuit in module box (can be removed for bring in)
  • Free Cooling (K-series)
  • Filled with fluorinated greenhouse gas R410A

Additionally delivery:

  • Shut-off valve (fill and drain valve) heating circuit
  • Outdoor sensor

Necessary accessories:

  • Safety assembly and expansion vessel for the heating circuit
  • Safety assemly and expansion vessel for heat source circuit


Article Number 10066842
Equipment designation WZS 102K3M
Capacity for heating (kW) 9,34 (B0/W35)
COP 5,05 (B0/W35)
Max. flow temperature 65
Cooling Yes
Heat source S/W
Indoor/ Outdoor installation Indoor installation
Detached/semidetached house Yes
Multiple dwelling No
Industrial building No
New building Yes
Refurbishment Yes
Seasonal space heating energy efficiency ƞs (35°C) 214,2
Seasonal space heating energy efficiency ƞs (55°C) 142,7
Seasonal water heating energy efficiency class(the package of combination heater, temperature control and solar device) A
manual (400 V) EN
controller (part 1) EN
controller (part 2) EN
logbook EN
Energylabel EN

Possible energy efficiency classes
Space heaters (35° C, 55° C): A+++ to D Ӏ Combined space heaters: A+++ to G Ӏ Combi heaters: A+++ to D Ӏ Hot water preparation: A+ to F Ӏ Combination combi heaters: A+++ to G Ӏ Hot water tanks: A+ to F Ӏ Domestic hot water preparation: A+ to F Ӏ Ventilation: A+ bis G