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LK 525 MultiZone Polar / Solar

LK 525 MultiZone Polar / Solar

  • Suitable for both low and high temperatures
  • Low internal leakage
  • The turning slide allows it to withstand a larger differential pressure and reduces the risk of seizing after a long period without operation.

LK 525 MultiZone Polar / Solar is a motorized 3-way zone valve for On/Off control intended for use in cooling systems where the temperature of the media can go below 0 °C or in solar heating systems where the t...

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LK 525 MultiZone Polar / Solar

  • Variants
  • Detailed Information
  • Documentation
  • Videos
  • Accessories & Spare parts
  • Questions & Answers

Variants

LK 525 3W - Compression fitting

LK 525 3W - Compression fitting 3 variants

Article Dim. Kvs m³/h A mm B mm C mm D mm E mm F mm Weight (kg) Dimensional sketch Item List
066108 22 mm 8,0 110 55 50 43 107 54 0.4
066109 28 mm 8,0 110 55 54 43 107 54 0.6
066399 28 mm 13,0 114 57 59 43 107 54 0.8

066108

Dim. 22 mm
Kvs m³/h 8,0
A mm 110
B mm 55
C mm 50
D mm 43
E mm 107
F mm 54
Weight (kg) 0.4
Dimensional sketch
Item list

066109

Dim. 28 mm
Kvs m³/h 8,0
A mm 110
B mm 55
C mm 54
D mm 43
E mm 107
F mm 54
Weight (kg) 0.6
Dimensional sketch
Item list

066399

Dim. 28 mm
Kvs m³/h 13,0
A mm 114
B mm 57
C mm 59
D mm 43
E mm 107
F mm 54
Weight (kg) 0.8
Dimensional sketch
Item list
LK 525 3W - Female thread

LK 525 3W - Female thread 3 variants

Article Dim. Kvs m³/h A mm B mm C mm D mm E mm F mm Weight (kg) Dimensional sketch Item List
066420 F ¾" 7,0 70 35 39 43 107 54 0.3
066421 F 1" 8,0 74 37 40 43 107 54 0.3
066422 F 1¼" 8,0 84 42 45 43 107 54 0.6

066420

Dim. F ¾"
Kvs m³/h 7,0
A mm 70
B mm 35
C mm 39
D mm 43
E mm 107
F mm 54
Weight (kg) 0.3
Dimensional sketch
Item list

066421

Dim. F 1"
Kvs m³/h 8,0
A mm 74
B mm 37
C mm 40
D mm 43
E mm 107
F mm 54
Weight (kg) 0.3
Dimensional sketch
Item list

066422

Dim. F 1¼"
Kvs m³/h 8,0
A mm 84
B mm 42
C mm 45
D mm 43
E mm 107
F mm 54
Weight (kg) 0.6
Dimensional sketch
Item list
LK 525 3W - Male thread

LK 525 3W - Male thread 4 variants

Article Dim. Kvs m³/h A mm B mm C mm D mm E mm F mm Weight (kg) Dimensional sketch Item List
066000 M ¾" 7,0 70 35 39 43 107 54 0.3
066106 M 1" 8,0 62 31 39 43 107 54 0.3
066107 M 1¼" 8,0 74 37 40 43 107 54 0.6
066418 M 1¼" 13,0 88 44 48 43 107 54 0.8

066000

Dim. M ¾"
Kvs m³/h 7,0
A mm 70
B mm 35
C mm 39
D mm 43
E mm 107
F mm 54
Weight (kg) 0.3
Dimensional sketch
Item list

066106

Dim. M 1"
Kvs m³/h 8,0
A mm 62
B mm 31
C mm 39
D mm 43
E mm 107
F mm 54
Weight (kg) 0.3
Dimensional sketch
Item list

066107

Dim. M 1¼"
Kvs m³/h 8,0
A mm 74
B mm 37
C mm 40
D mm 43
E mm 107
F mm 54
Weight (kg) 0.6
Dimensional sketch
Item list

066418

Dim. M 1¼"
Kvs m³/h 13,0
A mm 88
B mm 44
C mm 48
D mm 43
E mm 107
F mm 54
Weight (kg) 0.8
Dimensional sketch
Item list
LK 525 Solar / Polar - Actuator

LK 525 Solar / Polar - Actuator 6 variants

Article Note Weight (kg) Torque Item List
066177 Adapter Polar / Solar 0.03
066060 EMV 110-M SPST Actuator 230 VAC with Molex® 0.3 5 Nm
066061 EMV 110-K SPST Actuator 230 VAC with cable 1 m 0.3 5 Nm
066062 EMV 110-K SPST Actuator 230 VAC with cable 3 m 0.4 5 Nm
066063 EMV 110-M SPST Actuator 24 VAC with Molex® 0.3 5 Nm
066083 Cable-M 3x0.75 L=1 m with Molex® 0.1

066177

Note Adapter Polar / Solar
Weight (kg) 0.03
Torque
Item list

066060

Note EMV 110-M SPST Actuator 230 VAC with Molex®
Weight (kg) 0.3
Torque 5 Nm
Item list

066061

Note EMV 110-K SPST Actuator 230 VAC with cable 1 m
Weight (kg) 0.3
Torque 5 Nm
Item list

066062

Note EMV 110-K SPST Actuator 230 VAC with cable 3 m
Weight (kg) 0.4
Torque 5 Nm
Item list

066063

Note EMV 110-M SPST Actuator 24 VAC with Molex®
Weight (kg) 0.3
Torque 5 Nm
Item list

066083

Note Cable-M 3x0.75 L=1 m with Molex®
Weight (kg) 0.1
Torque
Item list

Detailed Information

Description

LK 525 MultiZone Polar / Solar is a motorized 3-way zone valve for On/Off control intended for use in cooling systems where the temperature of the media can go below 0 °C or in solar heating systems where the temperature of the media can reach very high levels. The plastic adapter is installed between the valve unit and the actuator to protect the actuator against condensation and icing or high temperatures.

The zone valve is designed with a turning slide which allows it to withstand a larger pressure difference and ­reduces the risk of it stalling after longer periods of intermission. On the upper surface of the actuator is an indicator that shows which port is open.

The zone valve must not be installed with the motor underneath the valve unit. The valve needs to be insulated.

In case of a power failure, the valve cone stays in its current position. When the power is switched off, the valve can be manually set to the centre position, which distributes the flow between the circuits. Remove the motor and turn the spindle about 30° or turn until fluid flows through both valve ports. When the power is restored, turn the valve back to its original position and reinstall the motor.

Please note that the motor can be installed in only one position.

Technical Data

Working temperature: Polar: Min. -15 °C/Max. 80 °C (90 °C briefly)
Solar: Min. -15 °C/Max. 120 °C (160 °C briefly)
Ambient temperature: Min. 1 °C/Max. 60 °C
Max. working pressure: 1.0 MPa (10 bar)
Max. differential pressure: 100 kPa (1 bar)
Leakage: < 0.1% of Kvs at 100 kPa
Angle of rotation: 60°/360°
Media 1: Water - Glycol mixture max. 50% Ethanol mixture max. 30%
Thread standard: Rp - female thread, G - male thread, ISO 228/1
Actuator: 7 VA, 230 VAC, 50 Hz
7 VA, 24 VAC, 50 Hz
Operation time: 8 seconds (60°)
Electrical connection: Fixed wire alternatively Molex®-compatible connector
Signal connector: Single pole SPST
Protection type: IP 40 (Molex®) / IP 44 (Cable)
Material, valve body: Brass EN 12165 CW617N
Material, external cover: Brass EN 12164 CW614N
Material, slide/spindle: PPS Composite
Cable specification: Dimension 3 x 0.75 mm²
Wire colors: Blue, brown, black
External insulation: PVC
Connection: Molex® or Molex®-compatible connector, 6-circuit
Approvals: CE

Application

Wiring Diagram

Technical Diagrams

Capacity diagram

Documentation

Product sheet

LK 525 MultiZone Polar / Solar

Instruction manual

525 MultiZone 3V - Instruction_048270

Brochure

525 MultiZone ENG

Accessories & Spare parts

Article no. Article Position
187202 Insulation 1

Videos

LK 525 MultiZone

Questions & Answers

Is it possible to replace a Honeywell mixing valve with an LK 525 MultiZone with actuator?

Yes it is easy to replace and no adjustment is needed.

My mixing valve rotates in different directions: is there something wrong?

No, this is quite normal. The mixing valve will rotate randomly between ports A and B. Rotation takes place at an angle of 60°.