Heil Quaker ICP 1173408 Monitor Board
The Heil Quaker ICP 1173408 Monitor Board is a critical OEM replacement part designed for high-stakes 3-phase HVACR equipment protection. This Relay Phase Monitor Board tracks incoming line voltage and sequence in real-time, providing an essential secondary safety layer for scroll compressors and three-phase motors. By monitoring for phase loss, reversal, and voltage unbalance, this board prevents the mechanical destruction that occurs when a compressor runs in reverse or faces a single-phasing event. Engineered for seamless integration into Heil, Tempstar, Arcoaire, and Comfortmaker packaged units and heat pumps, it ensures the control circuit only closes when power conditions are within safe operating parameters.
For field technicians, the ICP 1173408 simplifies troubleshooting with clear diagnostic indicators. It operates as a 3-phase voltage monitor that interfaces directly with the 24V control transformer and compressor contactor. Using this genuine ICP part ensures that the response timing and trip thresholds match the original equipment manufacturer?s specifications, maintaining the HVAC system reliability needed in demanding commercial and residential RTU applications. When you are dealing with frequent brownouts or utility-side fluctuations, installing this phase failure relay is a standard best practice to prevent costly motor burnouts and down-time.
Key Benefits for Contractors:- Phase Reversal Protection: Prevents scroll compressors from running backwards, which can cause internal mechanical damage within seconds.
- Phase Loss Detection: Immediately de-energizes the contactor if one leg of the 3-phase power is lost, preventing motor "single-phasing."
- Direct OEM Compatibility: Fits a wide range of International Comfort Products (ICP) units, including popular N4H4, H2A3, and NXH6 models.
- Voltage Imbalance Monitoring: Guards against uneven thermal loading in motor windings caused by unbalanced legs.
- Compact Footprint: Designed for easy mounting within the existing control box without modifying the internal layout.
What are the symptoms of a faulty phase monitor board?
Usually, you?ll see the blower motor running while the compressor won't start. If the board hasn't failed but is doing its job, check the incoming legs at the disconnect. If the board itself is defective, it may fail to send the 24V signal to the contactor even when line voltage is perfect.
Can I bypass this board during troubleshooting?
While a technician might momentarily jump the R and Contactor terminals to verify the compressor is functional, leaving the board bypassed is never recommended. Without phase cycle protection, the system is vulnerable to catastrophic failure from the next power surge or utility fault.
Does this board work with 208V/230V and 460V systems?
The 1173408 monitor is widely used across various voltage configurations, but always verify the wiring diagram for your specific Heil or ICP model to ensure the leads from L1, L2, and L3 are appropriately landed.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Heil Quaker ICP 1173408 Monitor Board
The Heil Quaker ICP 1173408 Monitor Board is a critical OEM replacement part designed for high-stakes 3-phase HVACR equipment protection. This Relay Phase Monitor Board tracks incoming line voltage and sequence in real-time, providing an essential secondary safety layer for scroll compressors and three-phase motors. By monitoring for phase loss, reversal, and voltage unbalance, this board prevents the mechanical destruction that occurs when a compressor runs in reverse or faces a single-phasing event. Engineered for seamless integration into Heil, Tempstar, Arcoaire, and Comfortmaker packaged units and heat pumps, it ensures the control circuit only closes when power conditions are within safe operating parameters.
For field technicians, the ICP 1173408 simplifies troubleshooting with clear diagnostic indicators. It operates as a 3-phase voltage monitor that interfaces directly with the 24V control transformer and compressor contactor. Using this genuine ICP part ensures that the response timing and trip thresholds match the original equipment manufacturer?s specifications, maintaining the HVAC system reliability needed in demanding commercial and residential RTU applications. When you are dealing with frequent brownouts or utility-side fluctuations, installing this phase failure relay is a standard best practice to prevent costly motor burnouts and down-time.
Key Benefits for Contractors:- Phase Reversal Protection: Prevents scroll compressors from running backwards, which can cause internal mechanical damage within seconds.
- Phase Loss Detection: Immediately de-energizes the contactor if one leg of the 3-phase power is lost, preventing motor "single-phasing."
- Direct OEM Compatibility: Fits a wide range of International Comfort Products (ICP) units, including popular N4H4, H2A3, and NXH6 models.
- Voltage Imbalance Monitoring: Guards against uneven thermal loading in motor windings caused by unbalanced legs.
- Compact Footprint: Designed for easy mounting within the existing control box without modifying the internal layout.
What are the symptoms of a faulty phase monitor board?
Usually, you?ll see the blower motor running while the compressor won't start. If the board hasn't failed but is doing its job, check the incoming legs at the disconnect. If the board itself is defective, it may fail to send the 24V signal to the contactor even when line voltage is perfect.
Can I bypass this board during troubleshooting?
While a technician might momentarily jump the R and Contactor terminals to verify the compressor is functional, leaving the board bypassed is never recommended. Without phase cycle protection, the system is vulnerable to catastrophic failure from the next power surge or utility fault.
Does this board work with 208V/230V and 460V systems?
The 1173408 monitor is widely used across various voltage configurations, but always verify the wiring diagram for your specific Heil or ICP model to ensure the leads from L1, L2, and L3 are appropriately landed.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Heil Quaker ICP 1173408 Monitor Board is a critical OEM replacement part designed for high-stakes 3-phase HVACR equipment protection. This Relay Phase Monitor Board tracks incoming line voltage and sequence in real-time, providing an essential secondary safety layer for scroll compressors and three-phase motors. By monitoring for phase loss, reversal, and voltage unbalance, this board prevents the mechanical destruction that occurs when a compressor runs in reverse or faces a single-phasing event. Engineered for seamless integration into Heil, Tempstar, Arcoaire, and Comfortmaker packaged units and heat pumps, it ensures the control circuit only closes when power conditions are within safe operating parameters.
For field technicians, the ICP 1173408 simplifies troubleshooting with clear diagnostic indicators. It operates as a 3-phase voltage monitor that interfaces directly with the 24V control transformer and compressor contactor. Using this genuine ICP part ensures that the response timing and trip thresholds match the original equipment manufacturer?s specifications, maintaining the HVAC system reliability needed in demanding commercial and residential RTU applications. When you are dealing with frequent brownouts or utility-side fluctuations, installing this phase failure relay is a standard best practice to prevent costly motor burnouts and down-time.
Key Benefits for Contractors:- Phase Reversal Protection: Prevents scroll compressors from running backwards, which can cause internal mechanical damage within seconds.
- Phase Loss Detection: Immediately de-energizes the contactor if one leg of the 3-phase power is lost, preventing motor "single-phasing."
- Direct OEM Compatibility: Fits a wide range of International Comfort Products (ICP) units, including popular N4H4, H2A3, and NXH6 models.
- Voltage Imbalance Monitoring: Guards against uneven thermal loading in motor windings caused by unbalanced legs.
- Compact Footprint: Designed for easy mounting within the existing control box without modifying the internal layout.
What are the symptoms of a faulty phase monitor board?
Usually, you?ll see the blower motor running while the compressor won't start. If the board hasn't failed but is doing its job, check the incoming legs at the disconnect. If the board itself is defective, it may fail to send the 24V signal to the contactor even when line voltage is perfect.
Can I bypass this board during troubleshooting?
While a technician might momentarily jump the R and Contactor terminals to verify the compressor is functional, leaving the board bypassed is never recommended. Without phase cycle protection, the system is vulnerable to catastrophic failure from the next power surge or utility fault.
Does this board work with 208V/230V and 460V systems?
The 1173408 monitor is widely used across various voltage configurations, but always verify the wiring diagram for your specific Heil or ICP model to ensure the leads from L1, L2, and L3 are appropriately landed.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
