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Carrier EF17BZ278 Reversing Valve With Coil

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Special Price $142.43 Regular Price $178.84
In stock
SKU
EF17BZ278
The Carrier EF17BZ278 is a vital component in HVAC systems that make use of heat pumps, especially split system heat pumps.s. Included in this valve is its included coil, which is crucial to directing refrigerant flow to control heating and cooling modes. The heat pump can work in both capacities, which means it provides a two-in-one solution for climate control. Made of durable brass, the Carrier is also resistant to damage from frequent flow direction changes. The specifications include a dimension of 6.4" long by 7.4" wide by 2.8" high.
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HVAC Controls, HVAC Valve
Manufacturer:
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Specifications

  • Weight: 2.48lbs
  • Length: 6.4 "
  • Width: 7.4 "
  • Height: 2.8 "
  • Material: Brass
Manufacturer Name: Carrier
Product Number: EF17BZ278
OEM Part Number: EF17BZ278
Product Description: Reversing Valve W/Coil
Weight:2.48lbs/1124.91g

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Product Questions (2)
Customer Questions
What maintenance is required for the Carrier EF17BZ278 Reversing Valve With Coil?

Inspect the reversing valve and coil connections regularly for loose wiring or corrosion. Ensure refrigerant pressures remain within specifications and check for leaks. Clean surrounding components to prevent debris buildup and verify proper switching during system operation.

What are common issues with the Carrier EF17BZ278 Reversing Valve With Coil?

  • Valve sticking or failing to shift between heating and cooling modes.
  • Coil burnout or weak electromagnetic response.
  • Refrigerant leakage at valve connections or seals.
  • Electrical short, open circuit, or intermittent coil operation.

Installation Steps

Step 1: Turn off power and recover refrigerant safely.

Step 2: Remove access panels and disconnect coil wiring.

Step 3: Detach refrigerant lines and carefully remove old valve.

Step 4: Install new reversing valve with correct port alignment.

Step 5: Braze connections and avoid overheating nearby parts.

Step 6: Reconnect electrical coil wiring securely.

Step 7: Vacuum, leak-test, and recharge system.

Step 8: Restore power and check proper operation.