Overview
The Belimo Z2100QPF-K+CQKB24-S-LL is a 1-inch, 2-way ZoneTight Quick Control Valve (QCV) assembly featuring press-fit end connections, a normally open electronic fail-safe actuator, and an auxiliary switch for position feedback.
Features
- Integrated SPST auxiliary switch for auxiliary signaling and status verification
- Electronic fail-safe returns valve to open position upon power disruption
- Press-fit joint design for fast, reliable, tool-free installation
- Low-voltage AC/DC 24 V operation with On/Off control signal
Specifications
- Valve Size: 1″
- Connection Type: Press Fit
- Valve Type: 2-way
- Flow Coefficient: Cv 8.2
- Control Signal: On/Off
- Nominal Voltage: AC/DC 24 V
- Auxiliary Switch: 1 x SPST
- Fail-Safe Position: Normally Open (Fail-Open)
Applications
- Hydronic zone control requiring electrical position status monitoring
- Fan coil units, unit ventilators, and VAV reheat coils
- Commercial HVAC systems requiring fail-open safety design


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