Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

CARRIER Pressure Switch: Mfr Part # HK02ZA442 - Replacement HVACR Controls, Switches & Thermostats
CARRIERReplacement HVACR Controls, Switches & Thermostats

CARRIER Pressure Switch: Mfr Part # HK02ZA442

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

SKU 3G-OTH-103711

Brand
CARRIER
Item
Pressure Switch: Mfr Part # HK02ZA442
Category
Replacement HVACR Controls, Switches & Thermostats
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CARRIER
Manufacturer Part Number
HK02ZA442
Product Type
Pressure Switch

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

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

Frequently Asked Questions

What is the Carrier HK02ZA442 pressure switch used for?

The Carrier HK02ZA442 pressure switch is used in HVACR systems to monitor refrigerant pressure and protect compressors from damage. It is a replacement control for Carrier equipment, ensuring safe operation by opening or closing electrical contacts at set pressure thresholds.

What are the specifications of the Carrier HK02ZA442 pressure switch?

The Carrier HK02ZA442 is a pressure switch with manufacturer part number HK02ZA442. It is designed as a replacement HVACR control for Carrier systems. For detailed pressure set points and electrical ratings, consult the original equipment documentation or contact 3G Electric for technical support.

Where to buy Carrier HK02ZA442 pressure switch worldwide?

3G Electric supplies the Carrier HK02ZA442 pressure switch worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this genuine Carrier replacement part.

How to install the Carrier HK02ZA442 pressure switch?

Install the Carrier HK02ZA442 pressure switch by first disconnecting power and recovering refrigerant. Mount the switch securely, connect the electrical leads per the wiring diagram, and verify the pressure set points match system requirements. Always follow Carrier's installation instructions and local codes.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
CARRIER High Pressure Switch: Mfr Part # HK02ZA439
CARRIER
CARRIER High Pressure Switch: Mfr Part # HK02ZA439
CARRIER Pressure Switch: Mfr Part # HK06WC069
CARRIER
CARRIER Pressure Switch: Mfr Part # HK06WC069
CARRIER Pressure Switch: Mfr Part # HK06WC077
CARRIER
CARRIER Pressure Switch: Mfr Part # HK06WC077
CARRIER Pressure Switch: Mfr Part # HK06NB023
CARRIER
CARRIER Pressure Switch: Mfr Part # HK06NB023
CARRIER Pressure Switch: Mfr Part # HK06UC001
CARRIER
CARRIER Pressure Switch: Mfr Part # HK06UC001
CARRIER Pressure Switch: Mfr Part # HK06UC011
CARRIER
CARRIER Pressure Switch: Mfr Part # HK06UC011

More from CARRIER

View all CARRIER parts
Replacement furnace control board for managing ignition sequencing, blower timing, and limit circuit monitoring in gas furnaces. Direct replacement part for maintaining proper heating system operation
CARRIER
Replacement furnace control board for managing ignition sequencing, blower timing, and limit circuit monitoring in gas furnaces. Direct replacement part for maintaining proper heating system operation
Relay-phase monitor for HVACR equipment. Detects phase loss, phase reversal, and undervoltage conditions to protect compressors and motors from electrical faults. Suitable for commercial and industrial HVAC systems
CARRIER
Relay-phase monitor for HVACR equipment. Detects phase loss, phase reversal, and undervoltage conditions to protect compressors and motors from electrical faults. Suitable for commercial and industrial HVAC systems
Interface board for HVACR systems, used to manage communication between the main controller and peripheral devices. Enables signal routing and system integration in commercial heating, ventilation, air conditioning, and refrigeration applications
CARRIER
Interface board for HVACR systems, used to manage communication between the main controller and peripheral devices. Enables signal routing and system integration in commercial heating, ventilation, air conditioning, and refrigeration applications
Heater accessory limit switch for HVACR systems. Monitors temperature to prevent overheating in furnaces and air handlers. Interrupts power when temperature exceeds safe limits
CARRIER
Heater accessory limit switch for HVACR systems. Monitors temperature to prevent overheating in furnaces and air handlers. Interrupts power when temperature exceeds safe limits
This burner is a replacement component for HVACR systems, providing controlled combustion in heating applications. It is used in furnaces, boilers, and air handlers where ignition and flame management are required
CARRIER
This burner is a replacement component for HVACR systems, providing controlled combustion in heating applications. It is used in furnaces, boilers, and air handlers where ignition and flame management are required
Electronic board for HVACR systems, used to control heating, ventilation, air conditioning, and refrigeration functions. Serves as a replacement control component, facilitating communication between sensors and actuators
CARRIER
Electronic board for HVACR systems, used to control heating, ventilation, air conditioning, and refrigeration functions. Serves as a replacement control component, facilitating communication between sensors and actuators
Temperature control for HVACR systems, regulating heating and cooling cycles. Used in commercial and residential equipment such as furnaces and air handlers to manage system temperature
CARRIER
Temperature control for HVACR systems, regulating heating and cooling cycles. Used in commercial and residential equipment such as furnaces and air handlers to manage system temperature
This controller is designed for use with transmitters in HVACR systems. It regulates and monitors transmitter signals for temperature and pressure control. Commonly applied in commercial refrigeration, air handling units, and chiller systems
CARRIER
This controller is designed for use with transmitters in HVACR systems. It regulates and monitors transmitter signals for temperature and pressure control. Commonly applied in commercial refrigeration, air handling units, and chiller systems