30 years of development and manufacturing
This floor-standing enamelled tank is available in 200 and 300 litre capacities. The lower heat exchanger is designed for a heat pump; the upper one can serve an additional heat source.
Category: Domestic hot-water tanks
Discover ATTACK heat-pump tanks
A floor-standing tank with a large-area heat exchanger, suitable for heat pumps and other low-temperature heat sources.
ATTACK Z 200/300 HP
The tanks are prepared for a thermometer and temperature sensors to control the lower and upper heat exchangers and the circulation circuit. Their closed DHW system can supply hot water to several draw-off points.
Protection and capacity
ATTACK Z 200/300 HP
For heat pumps
Detailed connection diagram
The diagram identifies the DHW connection, upper and lower heat exchangers, electric element, circulation and sensors.
Detailed specifications
Technical data is taken from the Slovak product table and ATTACK Z 200/300 HP manual. Shared values apply to both capacity variants.
| Parameter | Unit | Z 200 HP | Z 300 HP |
|---|---|---|---|
| Nominal capacity | l | 200 | 300 |
| Weight without water | kg | 90 | 116 |
| Nominal operating pressure | MPa | 0.6 | 0.6 |
| Maximum safety-valve opening pressure | MPa | 0.7 | 0.7 |
| Minimum required water pressure | MPa | 0.01 | 0.01 |
| Standby energy consumption at 65 °C | Wh/24 h | 1900 | 2500 |
| Heated volume of lower heat exchanger | l | 200 | 300 |
| Lower heat-exchanger area | m² | 1 | 1.5 |
| Lower heat-exchanger volume | l | 5.7 | 8.5 |
| Operating pressure of lower heat exchanger | MPa | 0.6 | 0.6 |
| Heated volume of upper heat exchanger | l | 90 | 130 |
| Upper heat-exchanger area | m² | 0.8 | 1 |
| Upper heat-exchanger volume | l | 4.6 | 5.7 |
| Operating pressure of upper heat exchanger | MPa | 0.6 | 0.6 |
| Tank material | — | Enamelled steel sheet | Enamelled steel sheet |
| Heat-exchanger material | — | Enamelled steel tube | Enamelled steel tube |
| Corrosion protection | — | Fired enamel + active anode | Fired enamel + active anode |
| Cold- and hot-water connection | — | G3/4 | G3/4 |
| Circulation connection | — | G3/4 | G3/4 |
| Connection for electric element | — | Rp6/4 | Rp6/4 |
| Heat-exchanger connection | — | Rp3/4 | Rp3/4 |
| Thermometer and sensor connections | — | Rp1/2 | Rp1/2 |
Product materials
Customer support
ATTACK service partners provide expert installation and operating support. Contact a partner for help designing the system connections.
Service supportOther related products
Need advice?
When selecting a tank, consider usage patterns, the heat pump and any additional heat source.
