Technical Documentation Pressure Independent Characterized ...

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Wiring Diagrams for LF24-MFT US and AF24-MFT US Actuators 64 Standard Wiring 24 VAC Transformer 1 Line Blk (1) Common Volts 3 Red (2) + Hot 3 Control Signal (–) 2 2 to 10 VDC (+) Wht (3) Y1 Input, 2 to 10V 2 to 10 VDC Feedback Signal 24 VAC Transformer 1 Line Volts 3 Control Signal (–) A 2 2 to 10 VDC (+) A Open = 0 V Position A Closed = Normal Operation Override to zero position Ω Wht (5) U Output, 2 to 10V CCW(L) CW(R) Blk (1) Common Red (2) + Hot Wht (3) Y 1 Input, 2 to 10V Override to 10 V position 24 VAC Transformer 1 Line Blk (1) Common Volts Red (2) + Hot 3 Control Signal (–) B 2 2 to 10 VDC (+) C Wht (3) Y1 Input, 2 to 10V B Closed = 10 V Position C Closed = Normal Operation 1 Line Volts 3 Override control to min, mid, max, positions 24 VAC Transformer Control Signal (–) 2-10 VDC or 4 to 20 mA (+) 500Ω 4 1/4 watt Min* Mid* Functions 0% 50% A B C Blk (1) Common Red (2) + Hot Wht (3) Y 1 Input, 2 to 10V a b c Max* 100% Normal** Control mode acc. to Y * Default selectable 0-100%. See Configuration Data Sheet. ** Customizable. See Configuration Data Sheet. 2 to 10 VDC Control Signal W012 24 VAC Transformer 1 Line Volts 3 Ω 500Ω 1/4 watt Control Signal 4 to 20 mA (–) (+) 4 Standard Wiring 2 Blk (1) Common Red (2) + Hot 3 Wht (3) Y 1 Input, 2 to 10V Wht (5) U Output, 2 to 10V Override to zero position 24 VAC Transformer 1 Line Blk (1) Common Volts Red (2) + Hot 3 Control Signal (–) Ω 2 4 to 20 mA (+) 4 A Wht (3) Y1 Input, 2 to 10V A Open = 4 mA Position A Closed = Normal Operation 500Ω 1/4 watt Override to 20 mA position 24 VAC Transformer 1 Line Blk (1) Common Volts Red (2) + Hot 3 Control Signal (–) 4 to 20 mA (+) 4 Ω 500Ω 1/4 watt B C 2 Wht (3) Y1 Input, 2 to 10V B Closed = 20 mA Position C Closed = Normal Operation 4 to 20 mA Control Signal CCW(L) CW(R) With a 4-20 mA Input, up to 4 actuators may be wired in parallel. A 2% shift in the signal is seen when using a 500Ω resistor. Power consumption must be observed. Notes Provide overload protection and disconnect as required. 1 Actuators may be connected in parallel if not mechanically mounted 2 to the same shaft. Power consumption and input impedance must be observed. 3 5 6 S1 S2 S3 S4 S5 S6 NC NO NC NO 5° 5 6 25° to 85° Auxiliary Switch AF24-MFT-S US 4 Actuator may also be powered by 24 VDC. ZG-R01 may be used. W014 S1 NC S2 S3 NO For end position indication, interlock control, fan startup, etc., AF24-MFT-S US incorporates two built-in auxiliary switches: 2 x SPDT, 7A (2.5A) @250 VAC, UL listed, one switch is fixed at +5°, one is adjustable 25° to 85°. LF24-MFT-S US incorporates one built-in auxiliary switch: 1 x SPDT, 6A (1.5A) @250 VAC, UL listed, adjustable 0° to 95°. Meets UL and CSA requirements without the need of an electrical ground connection. 5 0° to 95° Auxiliary Switch LF24-MFT-S US 6 ® W013 W026 J20728 - 04/07 - Subject to change. © Belimo Aircontrols (USA), Inc.
J20728 - 04/07 - Subject to change. © Belimo Aircontrols (USA), Inc. ® Pressure Optimize Your Heat Pump Application by Using a Pressure Independent Characterized Control Valve What are the benefits? A balanced system is achieved without the need for a balancer to manually balance each circuit. Because the system is dynamic and the PICCV performs dynamic balancing, Differential Pressures are no longer an issue to be concerned with. The PICCV will maintain a constant flow at part load and during morning warm-up when all loops become critical. With the PICCV, each terminal gets the required flow, no over-flow or under-flow at this critical time. The PICCV allows a mechanic to easily commission additional circuits after the initial system is up and running, again thanks to dynamic balancing capability. The PICCV is available in flow rates from .5 GPM to 19 GPM. Choosing the right PICCV is as easy as determining the appropriate flow for your heat pump and then choosing the valve that satisfies the flow requirement. Independent Characterized Control Valve How does it work? Heat Pump Applications Keep with the same idea of a conventional heat pump system, then add the Belimo PICCV (2-way Pressure Independent Characterized Control Valve). Think savings, and not necessarily first cost of equipment. Add a VFD (with its known and accepted benefits) and a Belimo PICCV as your flow control valve, and you have now optimized your system flow for very little additional cost. expansion device expansion device refrigerant-to-air heat exchanger refrigerant-to-air heat exchanger Heat Pump in Heating Mode refrigerant-to-water heat exchanger pump Heat Pump in Cooling Mode refrigerant-to-water heat exchanger compressor reversing valve pump compressor reversing valve water loop water loop 65
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Belimo Project: 1100 Peachtree, Atl
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