LK 28mm Heat Pump 3 Way Diverter Valve (066432 - Set) – 28mm Compression
The LK 525 MultiZone 3W is a motorised three way zone valve for simple On Off control. It uses a turning slide design which reduces the risk of stalling after long periods without movement. This makes it ideal for heat pump systems where the valve may sit in one position for long periods during warmer months.
An indicator on top of the actuator shows which port is open. A plastic adapter can be fitted between the valve and motor to protect the motor from condensation, icing and higher temperatures.
If there is a power failure the valve stays in its current position. It can be manually moved to the centre position to allow flow to both heating and hot water circuits until power is restored.
The motor can only be fitted in one orientation and must not sit underneath the valve body. No maintenance is required, but the installation should be checked from time to time.
Key Features
• 28 mm compression connections
• Turning slide design reduces risk of stalling
• Minimal internal leakage
• Quick clip system for fast assembly
• Clear port position indicator
• Suitable for heat pumps and general heating or cooling systems
• Optional adapter for protection against condensation and heat
Technical Data
Operation
Angle of rotation 60° 360°
Leakage less than 0.1 percent of Kvs at 100 kPa
Operation time 8 seconds for 60°
Max working pressure 1.0 MPa 10 bar
Max differential pressure 100 kPa 1 bar
Working temperatures
Heating standard Min 5°C Max 80°C 90°C briefly
Kvs 13 Min 5°C Max 70°C 80°C briefly
Cooling Heating with adapter Min minus 15°C Max 120°C 160°C briefly
Ambient temperature Min 1°C Max 60°C
Protection rating
IP40 Molex
IP44 Cable
Media
Water glycol mix up to 50 percent
Ethanol mix up to 30 percent
Water Kvs 13
Electrical
Fixed wire or Molex compatible connector 6 circuit
Signal SPST
Cable 3 x 0.75 mm²
Actuator options
7 VA 230 VAC 50 Hz
7 VA 24 VAC 50 Hz
9 VA 230 VAC 50 Hz 50802229
Materials
Valve body Brass EN 12165 CW617N
External cover Brass EN 12164 CW614N
Slide spindle PPS Composite
Leakage solar less than 0.5 percent of Kvs at 100 kPa
Certification
CE marked actuator only
