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Help CenterHONEYWELL CV-DYNB-AIO – All‑in‑One Dynamic Balancing Control Valve for HVAC Hydronic Loops
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The HONEYWELL CV-DYNB-AIO is designed as a compact, all‑in‑one pressure‑independent control valve (PICV) assembly that combines dynamic flow balancing, precision control, and an integrated actuator. In many cases it replaces separate balancing valves and control valves, helping stabilize coil delta‑T and cut commissioning time. From my experience, it’s a smart fit for fan-coil units, AHUs, and zone coils where flow stability under varying differential pressure really matters.
Key FeaturesAll‑in‑one PICV design – Valve, dynamic balancing mechanism, and actuator integrated to simplify selection and installation.
Stable flow under ΔP changes – The dynamic element maintains preset flow even as system pressure fluctuates, reducing hunting and improving control.
Field‑adjustable max flow – Typically includes a readable scale for setting design flow without external balancing valves.
Common control signals – Accepts 0–10 VDC or 2‑position/floating control (varies by actuator variant), so it drops into most BMS strategies.
Compact footprint – A single assembly reduces space in tight risers or above‑ceiling applications.
Low leakage and tight close‑off – Helps ensure energy doesn’t bleed through at shutoff; in most cases improves coil off‑cycle performance.
Serviceable design – Manual override and clear orientation markings typically make commissioning faster.
Glycol‑ready – Suitable for common chilled/hot water mixes used in commercial buildings (check concentration limits per datasheet).
| Brand / Model | HONEYWELL CV-DYNB-AIO |
| Power Requirements | Typically 24 VAC/VDC (actuator variant dependent) |
| Signal Input/Output | 0–10 VDC or floating/2‑position input (by configuration) |
| Operating Temperature | Hydronic media typically 2–95 °C; ambient limits per actuator datasheet |
| Communication Interfaces | Not required; driven by BMS control signal |
| Installation Method | In‑line pipe mounting; follow flow arrow; actuator upright or horizontal |
| Dimensions & Weight | Varies by valve size; compact AIO assembly |
You might notice the CV-DYNB-AIO shows its best value in variable flow systems. Typical uses include:
Fan coil units and chilled beams in office towers and hotels
AHU coils in variable primary/secondary chilled water plants
District cooling/heating substations where ΔP swings are common
Retrofit jobs replacing manual balancing plus 2‑way valves to cut commissioning hours
A facility engineer recently told us they swapped a bank of manual balance valves for dynamic AIO valves on a high‑rise retrofit; flow stability improved immediately, and they avoided night‑time rebalancing after pump speed changes.
Lower commissioning time – Set design flow on the valve and go; typically no separate balancing passes.
Energy savings – Consistent flow supports proper delta‑T, which often reduces pump energy and chiller lift.
Fewer SKUs to manage – All‑in‑one assembly reduces part count and simplifies spares.
BMS‑friendly – Works with standard controller outputs; no special network integration needed.
Reliability – Honeywell’s HVAC lineage means parts, support, and documentation are usually easy to source.
Mounting orientation – Install per the flow arrow; actuator upright or horizontal is preferred. Avoid actuator‑down in wet environments.
Piping practice – Provide straight pipe lengths upstream/downstream when possible; keep strainers clean to protect the dynamic element.
Electrical – Supply the specified 24 VAC/DC; use shielded cable for 0–10 V where runs are long.
Isolation – Add service valves to allow actuator or valve maintenance without draining the whole loop.
Safety – Depressurize and cool lines before service; lockout/tagout power to the actuator.
Routine checks – Annually verify flow setpoint, operate the manual override, and confirm stroke. Firmware updates don’t apply unless an electronic module is present.
CE compliant for relevant EMC/Low Voltage directives (typical for Honeywell HVAC actuators)
RoHS compliant materials in most configurations
UL/CSA recognition often applies to the actuator component (check specific SKU)
Manufacturer warranty commonly 12–24 months from shipment, depending on region and variant
Honeywell room and duct temperature sensors for precise loop control
BMS controllers with analog outputs (e.g., 0–10 VDC) such as typical Honeywell building controllers
Isolation ball valves and Y‑strainers sized to match the coil circuit
Signal converters (0–10 V to floating) if matching legacy control strategies
Note: Specifications and supported options can vary by size and actuator selection. If you share your design flow and coil details, I can match the exact CV-DYNB-AIO configuration and provide submittals.
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