Calio Pro

Summary

Product identification

The KSB Calio Pro is a high-efficiency heating circulator pump with variable speed control.

Main applications

• Heating, ventilation, air-conditioning, cooling and circulation systems
• One-pipe systems and two-pipe systems
• Underfloor heating systems
• Boiler circuits or primary circuits
• Storage tank circuits
• Solar power systems
• Heat pumps

Fluids handled

• Heating water to VDI 2035
• Higher-viscosity fluids (water/glycol mixture up to a mixing ratio of 1:1)

Operating limits

• Flow rate:
  • Q ≤ 24 m³/h
  • Q ≤ 6.7 l/s
• Head: H ≤ 12 m
• Fluid temperature: ≥ -10 °C to ≤ +110 °C
• Ambient temperature:
  • ≥ 0 °C to ≤ +40 °C
  • ≤ +30 °C at a fluid temperature > 90 °C
• Operating pressure: p ≤ 16 bar
• Pressure class: PN 6/10/16 bar
• Average sound pressure level: < 40 dB (A)
• Minimum inlet pressure (at fluid temperature Tmax):
  • ≤ 80 °C: 0.5 bar
  • 81 to 95 °C: 1.5 bar
  • 96 to 110 °C: 2.5 bar
  • For installation at altitudes > 300 m, an allowance of 0.01 bar / 100 m must be added.

Electrical

• Drive: High-efficiency permanent magnet synchronous motor, brushless, self-cooling, with continuously variable differential pressure control
• Voltage: 1~230 V AC +/- 10%
• Frequency: 50 Hz/60 Hz
• Enclosure: IPX4D
• Thermal class: F
• Temperature class: TF 110
• Energy efficiency index: EEI ≤ 0.20
• Interference emissions: EN 55014-1, EN 61000-3-2, EN 61000-3-3
• Interference immunity: EN 55014-2
• Power (P1) ranges from 7 W to 390 W, and current (IN) ranges from 0.15 A to 1.85 A, depending on the specific model. See the official PDF for exact tabulated values.

Mechanical / hydraulic

• Design: Maintenance-free high-efficiency wet rotor pump (glandless)
• Bearings: Product-lubricated special plain bearing
• Connections:
  • Screw-ended connection: G 1 1/2 - 2
  • Flanged connection: DN 32 - 65
• Materials:
  • Volute casing: Grey cast iron with cathodic electrocoating (EN-GJL-200)
  • Shaft: Stainless steel 1.4034
  • Impeller: Glass fibre reinforced plastic (PSU-GF30)
  • Bearing: Ceramics / carbon
  • Thermal insulation shells: Polypropylene
  • Can: Glass fibre reinforced plastic (PPS-GF40)
• Weight: Ranges from 5.38 kg to 17.62 kg, depending on the specific model. See the official PDF for exact tabulated values.
• Dimensions: See the official PDF for detailed pump set and flange dimensions.
• Permissible installation positions are illustrated in the official PDF.

Control and functions

• Operating modes:
  • Constant-pressure control
  • Proportional-pressure control
  • Dynamic Control
  • Open-loop control with 3 speed levels
• Automatic functions:
  • Continuously variable speed adjustment depending on the mode of operation
  • Dual-pump operation
  • Deblocking function
  • Self-venting function of the pump casing
  • Soft start
  • Full motor protection with integrated trip electronics
• Manual functions:
  • Setting the operating mode
  • Setting the discharge head setpoint
  • Setting the speed level
  • Rotor space venting function
  • Locking the control panel
• Signalling and display functions:
  • Display of the set head
  • Display of the speed level
  • Display of the pump set status (running / not running)
  • Error codes indicated on the display
  • General fault message (volt-free changeover contact)

Certifications

• Europe: EEI ≤ 0.20

Scope of supply

Depending on the model, the scope of supply includes:

• Pump set
• Two-piece thermal insulation shell
• Sealing elements
• Plug-type connector to power supply
• Installation/operating manual

Accessories

• Pipe unions:
  • 2 pipe unions with G 1 1/2 union nut and insert with Rp 3/4 internal thread, steel (Mat. No. 19075560, 0.2 kg)
  • 2 pipe unions with G 1 1/2 union nut and insert with Rp 1 internal thread, steel (Mat. No. 19075561, 0.2 kg)
  • 2 pipe unions with G 2 union nut and insert with Rp 1 1/4 internal thread, steel (Mat. No. 19075562, 0.2 kg)
• Spacers (flange):
  • Spacer F16, DN 40, PN 6/10/16, 30 mm length (Mat. No. 19075991, 2 kg)
  • Spacer F0, DN 40, PN 6/10/16, 70 mm length (Mat. No. 19075566, 2 kg)
  • Spacer F1, DN 50, PN 6/10/16, 10 mm length (Mat. No. 19075567, 2 kg)
  • Spacer F2, DN 50, PN 6/10/16, 20 mm length (Mat. No. 19075568, 2 kg)
  • Spacer F3, DN 50, PN 6/10/16, 50 mm length (Mat. No. 19075569, 2 kg)
  • Spacer F4, DN 50, PN 6/10/16, 60 mm length (Mat. No. 19075570, 2 kg)
  • Spacer F5, DN 65, PN 6/10/16, 10 mm length (Mat. No. 19075571, 2 kg)
  • Spacer F6, DN 65, PN 6/10/16, 25 mm length (Mat. No. 19075572, 2 kg)
  • Spacer F7, DN 65, PN 6/10/16, 30 mm length (Mat. No. 19075573, 2 kg)

Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must always match the official OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror