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CARRIER High Pressure Switch: Mfr Part # HK02ZA439 - Replacement HVACR Controls, Switches & Thermostats
CARRIERReplacement HVACR Controls, Switches & Thermostats

CARRIER High Pressure Switch: Mfr Part # HK02ZA439

CARRIER Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: High Pressure Switch.

SKU 3G-OTH-77752

Brand
CARRIER
Item
High Pressure Switch: Mfr Part # HK02ZA439
Category
Replacement HVACR Controls, Switches & Thermostats
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CARRIER
Manufacturer Part Number
HK02ZA439
Product Type
High Pressure Switch

Technical Documents

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CARRIER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

CARRIER Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: High Pressure Switch.

Frequently Asked Questions

What is the CARRIER HK02ZA439 high pressure switch used for?

The CARRIER HK02ZA439 high pressure switch is a replacement HVACR control used to protect compressors and refrigeration systems from excessive discharge pressure. It opens the electrical circuit when pressure exceeds a set threshold, preventing system damage. Common in commercial air conditioning and refrigeration applications.

What are the specifications of the CARRIER HK02ZA439 high pressure switch?

The CARRIER HK02ZA439 is a high pressure switch with manufacturer part number HK02ZA439. It is designed as a replacement HVACR control for Carrier systems. Exact pressure set points and electrical ratings should be verified against the original equipment specifications for proper system compatibility.

Where to buy the CARRIER HK02ZA439 high pressure switch worldwide?

3G Electric supplies the CARRIER HK02ZA439 high pressure switch worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this replacement HVACR control.

How to install the CARRIER HK02ZA439 high pressure switch?

Install the CARRIER HK02ZA439 high pressure switch by first isolating power and recovering refrigerant. Remove the old switch, clean the mounting surface, and install the new switch with compatible fittings. Reconnect electrical leads per the wiring diagram, then pressure-test and evacuate the system before recharging.

Used in

Common applications for CARRIER
Commercial rooftop HVAC maintenance — Carrier heat exchanger kit 48GS660004 for replacing failed heat exchangers in packaged units.
Refrigeration system servicing — Carrier synthetic oil P903-2301 for lubricating compressors in HFC-based commercial refrigeration.
HVAC control system repair — Carrier blower control board HH84AA017 for restoring fan operation in air handlers.
Gas furnace safety inspection — Carrier rollout switch HH18HA449 for replacing faulty safety switches in heating systems.
Condenser unit overhaul — Carrier condenser fan blade 30GX660017 for replacing damaged blades in outdoor condensing units.
Compressor protection — Carrier crankcase heater HT31AZ121 for preventing liquid slugging in compressors during off-cycles.

CARRIER Products

3G Electric supplies CARRIER replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
CARRIER Pressure Switch: Mfr Part # HK06WC069
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CARRIER Pressure Switch: Mfr Part # HK06UC001
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CARRIER Pressure Transducer: Mfr Part # HK05YZ001

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