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York S1-031-03498-001 Demand Defrost Control Board

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Special Price $168.72 Regular Price $194.02
In stock
SKU
S1-031-03498-001
The York S1-031-03498-001 Demand Defrost Control Board senses temperature and when defrosting is needed based on temperature sensor inputs, and engages the defrost control relay. This control board is only for use with York HVAC equipment, including refrigeration and heat pump systems. It controls defrost cycles in such a way that it prevents the coil from frosting, and it gives equal air temperature in premises and optimum system efficiency. It provides increased system reliability, reduced equipment damage risk, and improved energy efficiency. The correct management of defrost extends the life of the HVAC system and decreases required maintenance while improving overall comfort and system efficiency.
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HVAC Control Board Parts, HVAC Controls
Manufacturer:
https://www.partshnc.com/media/catalog/product/S/1/S1-031-03498-001_York_partshnc.jpg

Specifications

  • Type: Demand Defrost Control Board
  • Voltage: 24V
  • Inputs: Temperature Sensors
  • Outputs: Defrost Control Relay

Product Description:-

Device Information:

HVAC control Boards are systems that manage the temperature and air in a particular environment. They are suitable for commercial, residential, public, or industrial usage.

York CONTROL BOARD from other Model Numbers:

S1-331-09150-000, S1-331-02977-000,  S1-031-09162-000

S1-031-03495-000, S1-331-09194-000, S1-031-09151-000

Product Information:

Manufacturer Name: York Parts & Accessories 

Product Name:  York 2Stage DEMAND DEFROST CONTROL BOARD

Part Number: S1-031-03498-001

Item per Quality: 1

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Product Questions (3)
Customer Questions
How to install an expansion valve for refrigeration?

Thermostatic expansion valves are an integral part of your refrigeration unit. They are responsible for ensuring the right dosage of refrigerant is entering the cooling coil to ensure maximum efficiency in the air conditioning of the system.    These special expansion valves come with a temperature sensor that is mounted at the end of the evaporator coil. They incorporate signals from this sensor to maintain the required temperature of the HVAC system. The thermostatic expansion valve works like a precision device that can regulate the measurements of the liquid refrigerant that flows into the evaporator of your system. This regulation in the flow of the refrigerant is essential to prevent the reverse flow of the refrigerant into the compressor of your system.    Through this mechanism, the thermostatic expansion valve successfully separates the high and low pressure sides of the refrigeration/air conditioning system. The liquid refrigerant enters the expansion ...

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What maintenance is required for the York S1-031-03498-001 Demand Defrost Control Board?

Periodically check terminal connections for tight fit and signs of oxidation. Ensure the board remains dry and shielded from debris. Confirm proper sensor communication and defrost sequencing, and always cut power before accessing the control panel for inspection.

What are common issues with the York S1-031-03498-001 Demand Defrost Control Board?

  • Defrost cycle not activating when required.
  • Erratic behavior from faulty sensor inputs.
  • Electrical failure due to power surges or shorts.
  • Inconsistent timing disrupting heating or cooling operation.