HVAC Chiller Control Solution — YORK YCAG-003 Control Board | YCAG Series
Where This Product Is Used
The YORK YCAG-003 Control Board is a dedicated microprocessor-based control module engineered for YORK YCAG-series air-cooled screw chillers. It serves as the central intelligence unit governing compressor sequencing, capacity modulation, safety interlock logic, and system diagnostics. Typical deployment environments include:
- Commercial HVAC Systems — large office buildings, hotels, and shopping centres requiring precise chilled-water temperature control
- Industrial Process Cooling — pharmaceutical manufacturing, food & beverage processing, and plastics injection moulding where stable coolant temperature is critical to product quality
- Data Centre Cooling Infrastructure — precision cooling loops supporting server room thermal management
- District Cooling Plants — multi-chiller installations where the board interfaces with BMS/SCADA systems via Modbus or BACnet
- Healthcare Facilities — hospital HVAC plants requiring continuous uptime and fault-tolerant control logic
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | YCAG-003 |
| Compatible Equipment | YORK YCAG Series Air-Cooled Screw Chillers |
| Module Type | Microprocessor Control Board (PCB Assembly) |
| Vendor / OEM Brand | YORK (Johnson Controls) |
| Weight | 360 g (bare board) |
| Communication Interface | RS-485 / Modbus RTU (model-dependent) |
| Operating Temperature | 0 °C to +55 °C (storage: −20 °C to +70 °C) |
| Input Voltage | 24 VAC / VDC (refer to chiller wiring diagram) |
| Protection Class | IP20 (panel-mounted) |
| Condition Available | New OEM / Tested Surplus / Refurbished |
Note: Specifications are indicative. Always cross-reference with your chiller’s service manual and wiring schematic before installation.
Why Engineers Specify This Model
- Drop-in OEM Replacement — Designed to exact YORK factory specifications; no firmware re-flashing or parameter re-mapping required in most YCAG-series units.
- Integrated Safety Logic — Onboard protection for high-pressure cutout, low-pressure cutout, motor overload, and anti-freeze trip reduces external relay count and panel complexity.
- Capacity Step Control — Manages compressor loading stages and slide-valve positioning for energy-efficient part-load operation, directly reducing kWh/RT at partial loads.
- Fault Memory & Diagnostics — Stores fault history accessible via the chiller’s operator panel, accelerating root-cause analysis and minimising downtime.
- BMS Integration Ready — RS-485 port enables integration with Siemens Desigo, Honeywell EBI, Schneider EcoStruxure, and other BMS platforms without additional gateways.
- Proven Field Reliability — Widely deployed across Asia-Pacific, Middle East, and European YORK chiller fleets with documented multi-year MTBF performance.
Complete System Bill of Materials
When replacing or commissioning the YCAG-003 Control Board, engineers typically source the following complementary components. Konmask.com stocks or can source all items below:
- YORK YCAG Operator Display Panel / HMI
- YORK Compressor Motor Starter / Soft-Starter Module
- YORK Chilled Water Leaving Temperature Sensor (NTC/PT1000)
- YORK Condenser Entering/Leaving Air Temperature Sensor
- YORK High-Pressure Transducer (discharge side)
- YORK Low-Pressure Transducer (suction side)
- YORK Expansion Valve Driver Board
- 24 VAC Control Transformer (if replacing power supply)
- RS-485 to Ethernet Gateway (for BACnet/IP integration)
Contact support@konmask.com for a complete BOM quotation.
Compliance & Industry Standards
- CE Marking — Compliant with EU Low Voltage Directive (LVD) and EMC Directive as part of the YORK YCAG chiller assembly
- UL / cUL Listed — YORK chiller systems carrying UL certification; replacement boards maintain listing when installed per OEM guidelines
- ASHRAE 15 & EN 378 — Chiller safety system design aligns with refrigeration safety standards
- ISO 9001:2015 — YORK (Johnson Controls) manufacturing facilities operate under ISO 9001 quality management systems
- RoHS Compliant — PCB assembly meets EU RoHS Directive 2011/65/EU restrictions on hazardous substances
Quality Assurance & Sourcing
Konmask.com specialises in industrial automation and HVAC control components for B2B buyers who cannot afford downtime. Our sourcing and QA process for the YORK YCAG-003 includes:
- Authorised & Verified Supply Chain — Parts sourced from YORK authorised distributors, certified MRO suppliers, and vetted surplus dealers with full traceability documentation
- Pre-Shipment Functional Test — Each board undergoes power-on verification and I/O continuity checks before dispatch
- Anti-Static Packaging — Shipped in ESD-safe bags with foam cushioning and moisture-barrier outer carton
- Condition Grading — Clearly labelled as New OEM, Tested Surplus (Grade A), or Refurbished with warranty terms stated per order
- Documentation Package — Certificate of conformance, test report, and packing list provided on request
How to Source This Part
- Confirm Your Model — Locate the chiller nameplate and control panel label to verify the exact board part number (YCAG-003 or variant suffix).
- Submit an Enquiry — Email support@konmask.com or call +0086 19859288691 with your part number, required quantity, and delivery timeline.
- Receive a Quotation — We respond within 1 business day with pricing, lead time, condition grade, and warranty terms.
- Place Your Order — Secure checkout via this product page or via proforma invoice for corporate/PO buyers.
- Fast Dispatch — In-stock items ship within 24–48 hours; DHL / FedEx express options available for urgent breakdowns.
Application-Specific FAQ
Q: Is the YCAG-003 compatible with all YCAG chiller tonnages?
A: The YCAG-003 board is designed for specific tonnage ranges within the YCAG series. Please provide your chiller’s model number and serial number so our engineers can confirm compatibility before you order.
Q: Can this board be used as a direct replacement without reprogramming?
A: In most cases, yes — the board retains factory default parameters compatible with standard YCAG configurations. However, site-specific setpoints (leaving water temperature, demand limit, etc.) will need to be re-entered via the operator panel after installation.
Q: What is the warranty on this part?
A: New OEM boards carry the standard YORK warranty. Tested surplus and refurbished units carry a Konmask 90-day functional warranty. Extended warranty options are available — contact us for details.
Q: Do you provide installation support?
A: We provide technical documentation and remote guidance via email or video call. On-site commissioning support can be arranged through our partner network in major cities across China and Southeast Asia.
Q: Can you supply multiple units for a fleet replacement project?
A: Yes. We handle bulk orders for facility managers and HVAC contractors. Volume pricing and staged delivery schedules are available on request.
Q: What refrigerants are supported by the YCAG series controlled by this board?
A: The YCAG series typically operates with R-134a or R-407C refrigerants. The control board’s pressure transducer calibration and safety thresholds are factory-set for the refrigerant specified on your chiller nameplate.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
