WWK 222H and WWK 302H
- German engineered for quality and reliability
- Designed for New Zealand climate conditions
- Advanced tank insulation to minimise heat loss
- Quiet operation with encased compressor design
- Maintenance-free impressed current anode – suitable for hard or soft water
- Energy-efficient performance down to -5°C with active defrost
- Compatible with solar PV systems
Product Overview
STIEBEL ELTRON's latest hot water heat pumps, the WWK 222H and WWK 302H, set a new benchmark for energy efficient hot water in the New Zealand market. Their modern design combines style with innovation, featuring a maintenance-free impressed current anode, active defrost for reliable operation down to -5°C, solar PV system compatibility, and the convenience of horizontal transport.
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Product Details
High-quality design from STIEBEL ELTRON.
- German engineered, designed for New Zealand conditions
- Market leader in heat pump technology since 1976
- 220 litre tank with high volume of hot water can deliver 360 L of 40°C shower temperature water at a cold water temperature of 20°C (302 litre tank delivers 540 litres)
- Suitable for hard or soft water areas with maintenance free current impressed anode
Installation flexibility
- Can be installed outdoors or indoors, indoor installation requires 13m³ of clear space
- Single piece design for ease of installation
- Active defrost function to assist operations in cold climates
- Operates in cold climates down to minus 5°C
Energy efficient
- Energy efficient operation saves up to 74% on hot water energy use*
- Low power draw at only 2.3 Amps
- Can operate on extended off-peak power and timers where available
Technical Data
| Model number | WWK 222H | WWK 302H |
| Power consumption at (EN16147/A15) | 0.55 kW | 0.55 kW |
| Power consumption smart element | 1.7 kW | 1.7 kW |
| Rated voltage | 240 V | 240 V |
| Rated current | 10 Amp | 10 Amp |
| Phases | 1/N/PE | 1/N/PE |
| Electrical Installation | As per AS/NZS3000 | |
| Installation requirements | AS/NZS3500.4.2 & local requirements | |
| Type of installation | Outdoor or Indoor | Outdoor or Indoor |
| Minimum space requirements |
Indoor - 13m3 |
|
| Cylinder capacity | 220 Litres | 302 Litres |
| Cylinder material | Enamelled Steel | |
| Permissible operating pressure | 800 kPa | 800 kPa |
| Seasonal coefficient of performance (COP) | 3.38 | 3.36 |
| Application range | -5 to +42°C | -5 to +42°C |
| Air flow rate | 550 m3/h | 550 m3/h |
| IP Rating | IP24 | IP24 |
| Refrigerant | R134a | R134a |
| Refrigerant capacity | 0.85 kg | 0.85 kg |
| Height | 1553-1569 mm (adjustable feet) | 1921-1937 mm (adjustable feet) |
| Diameter | 690 mm | 690 mm |
| Weight (empty) | 120 kg | 135 kg |
| Approvals | WaterMark Lic No. WMKA00301, AS3498 | |
| Weight (filled with water) | 340 kg | 437 kg |
| Average sound pressure level at 1m distance, free field (EN 15036) | 45 dB(A) | 45 dB(A) |
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FAQ
The WWK 222H and WWK 302H hot water heat pumps have a smart element situated in the top of the hot water cylinder. This smart element will switch on along with the heat pump function when a high volume of hot water is drawn off from the hot water tank. It assists the heat pump to heat approximately the top 80 litres of the tank, aiding hot water recovery for high-demand situations.
The WWK 222H and WWK 302H hot water heat pumps have an active defrost function that switches on when the frost monitor detects a build-up of hoar frost at the evaporator. When frost is detected, the fan switches off but the compressor keeps running. Hot vapor is directed to the evaporator while the condenser is shut off, allowing the hot gas to actively defrost the evaporator.
Yes. The WWK 222H and WWK 302H heat pumps are equipped with smart elements. These models have a 1.7 kW element that, when engaged, will heat approximately the top 80 litres of the tank.
The heat pumps have an active defrost function that can control any icing that occurs at lower air temperatures. The active defrost function removes hoar frost that forms at the evaporator and then reverts back to hot water generation mode.
2.3 Amps on 240 Volts.
Our heat pumps have an encased compressor design to reduce noise. They operate at approximately 45 dB. Heat pumps do make a sound when they are operating, which is the sound of the compressor and fan. The noise level depends on several factors, so we encourage customers to read the operating and installation guide and take into account the positioning of the heat pump when installing.
The condensate drain and the top of the condensate pan should be checked at least monthly to remove any blockages that may have occurred due to debris.
220 litres.
302 litres.
Yes. These heat pumps have been designed to be installed either indoors or outdoors. A clear space of 13 m3 is required for indoor installations to allow for the cold air from the refrigeration system to diffuse.
The WWK range of hot water heat pumps are not designed for room heating applications. STIEBEL ELTRON has a range of air source hydronic heat pumps and geothermal hydronic heat pumps designed for hydronic heating.