QE 834 Dual Pressure Refrigerant Control 150 to 450 Range Convertible Reset

HVAC refrigerant — QE 834 Dual Pressure Refrigerant Control 150 to 450 Range Convertible Reset

The HVAC refrigerant is a genuine OEM refrigerant available at Cedars HVAC. We stock this refrigerant for fast nationwide shipping from our Miami warehouse.

Product details

The QE oil differential pressure controls/switches are for use with all refrigeration with compressors using external oil pumps with refrigerants. It protects the compressor against loss of lubricating oil pressure which could otherwise cause severe bearing damage resulting in a compressor breakdown. Connected to the crankcase and oil pump by capillaries, the pressure switch senses the difference between the pressure in the crankcase and that of the outlet side of the oil pump. Applications include time delay to avoid nuisance shutdown and choice of safety timings.

Why buy from Cedars HVAC

• Genuine OEM HVAC parts — not aftermarket substitutes
• Contractor-friendly pricing on every refrigerant
• Fast nationwide shipping from Miami, FL
• Real HVAC expertise — call us at (305) 850-6693 if you need help confirming compatibility
• Financing available through PayPal Pay Later

About this part

This HVAC refrigerant is part of our Controls catalog. Contact us if you need help identifying compatible models or sourcing volume quantities. For installation guidance, always refer to the manufacturer documentation and consult a licensed HVAC technician where required.

Shipping and returns

Most HVAC refrigerant orders ship the same or next business day from Cedars HVAC in Miami, Florida. Standard ground shipping covers the continental United States, and expedited options are available at checkout. Returns are accepted within 30 days on unopened, uninstalled parts — see our return policy for full details. International shipping is available on request; contact our team for a quote.

Frequently asked questions

Is this part new and in stock? Yes, we list only in-stock items. The HVAC refrigerant ships from our Miami warehouse the same or next business day.

Will this refrigerant fit my equipment? Compatibility depends on the model and revision of your existing equipment. If you need help confirming fitment for the HVAC refrigerant, call us at (305) 850-6693 with your unit model number and we will confirm before you order.

Can I get a contractor or wholesale discount? Yes. Cedars HVAC offers volume pricing for licensed HVAC contractors, property managers, and resellers. Request contractor pricing or call us to set up an account.

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