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Explore our comprehensive range of high-quality refrigeration equipment designed for industrial and commercial applications.
Cabinet Air Conditioner with Heater
Combined cooling and heating for electrical enclosures · Dual-mode control · IP54 · 1000W-2500W
Cooling mode Up to 2500 W
Heating mode Up to 1500 W
Cooling function
Cooling capacity at 35°C2500 W
Cooling capacity at 45°C2200 W
RefrigerantR454C, 2 × 480 g
Evaporator airflow900 m³/h
Activation setpointConfigurable, default 30°C
Heating function
Heating capacity1500 W
Heater typePTC element, self-limiting
Heating airflow420 m³/h
Activation setpointConfigurable, default 5°C
Over-temperature cut-out70°C, manual reset
This cabinet air conditioner with integrated heater is specified for electrical enclosures that experience both high summer ambient temperatures and low winter temperatures, including outdoor roadside cabinets, unheated plant rooms, and remote telecom installations in temperate or continental climates. A single unit provides active cooling above the upper setpoint and active heating below the lower setpoint, removing the need for separate cooling and heating devices on the same cabinet.
The cooling circuit uses a scroll compressor and dual condenser coils. The heating function uses a self-limiting PTC element rated at 1500W, positioned in the evaporator air path so that heated air is distributed through the same ducting as cooled air. Mode switching is handled by the controller with adjustable deadbands to prevent short cycling between cooling and heating.
Commercial and Technical Advantages
Single-unit dual function One device handles both cooling and heating, reducing the number of wall penetrations, cable runs, and controllers on the cabinet. Simplifies bill of materials and site wiring for projects spanning multiple climate zones.
Self-limiting PTC heater PTC element increases resistance as temperature rises, limiting surface temperature without a separate thermal cut-out in normal operation. An independent over-temperature cut-out at 70°C provides secondary protection.
Adjustable deadband control Cooling and heating setpoints are independently configurable, with a deadband that prevents short cycling between modes. Typical settings are cooling at 30°C and heating at 5°C, adjustable per site requirements.
Condensation prevention Heating mode raises internal cabinet temperature above the dew point during cold periods, reducing condensation on busbars, terminals, and electronic assemblies at sites with high humidity and large diurnal temperature swings.
Plant network integration Modbus RTU standard with registers for both cooling and heating parameters. Mode status, setpoints, and alarm conditions accessible remotely. Dry-contact alarm relay for connection to existing annunciator panels.
Service parts program Compressors, EC fans, controllers, PTC heater elements, and pressure switches held as service parts for a minimum of 10 years. Relevant for remote sites where parts availability determines maintenance scheduling.
Technical Parameters
Cooling circuit
Cooling capacity at 35°C2500 W ± 4%
Cooling capacity at 45°C2200 W (derated)
Refrigerant and chargeR454C, 2 × 480 g (A2L)
Expansion deviceElectronic expansion valve per circuit
Evaporator airflow900 m³/h
Condenser airflow1400 m³/h
Power supply400V AC, 3-phase, 50/60Hz
Rated current per phase7.4 A
Heating circuit and enclosure
Heating capacity1500 W
Heater elementPTC, self-limiting
Over-temperature cut-out70°C, manual reset
Heating airflow420 m³/h
Operating ambient range-40°C to +55°C
Enclosure ratingIP54 / NEMA 12
Dimensions (H×W×D)1000 × 680 × 340 mm
Net weight76 kg
Deployment Contexts
01 Roadside and wayside cabinets Traffic control, tolling, and railway signaling cabinets exposed to direct summer sun and winter frost, requiring both cooling and freeze protection within a single enclosure.
02 Telecom and network sites Outdoor cabinets in continental climates where summer ambient exceeds equipment limits and winter temperatures drive condensation risk on internal electronics.
03 Unheated plant rooms Indoor electrical rooms without climate control, where seasonal temperature variation requires active cooling in summer and frost protection in winter.
04 Renewable and hybrid sites Solar inverter and battery cabinets in locations with wide ambient temperature swings, where battery performance and electronics reliability depend on maintaining internal temperature above minimum limits.
Selection and Installation Notes
Setpoint configuration Cooling and heating setpoints configured independently at commissioning. Recommended minimum deadband of 15°C between the two to prevent mode short cycling. Typical settings: cooling at 30°C, heating at 5°C.
Power supply sizing Size the supply for simultaneous compressor and heater operation is not required; controller interlocks prevent both modes running together. Size the feed for the higher of the two loads, typically the cooling mode at 7.4 A per phase.
Structural support At 76 kg, the unit requires reinforced mounting. Minimum panel thickness 2.0mm steel, or a load-distributing frame. Provide cabinet structural details for review where the panel is below this thickness.
Clearance Maintain 350mm at the condenser inlet and 550mm at the discharge. Heating mode draws air through the evaporator path, so the internal air return must remain unobstructed for both modes.
Refrigerant handling R454C is classified A2L (mildly flammable). Service must follow local regulations for A2L refrigerants, including ventilation, leak detection, and technician certification requirements. Each circuit is charged independently.
Maintenance interval Filter inspection monthly in dusty plants. Condenser coil cleaning quarterly. Annual check of refrigerant charge, PTC heater resistance, over-temperature cut-out operation, and electrical torque values.
Procurement FAQ
No. The controller interlocks the two modes. Cooling and heating cannot be energized simultaneously. A configurable deadband between the cooling and heating setpoints prevents rapid mode cycling. Recommended minimum deadband is 15°C.
Yes. The PTC heater element is mounted in a serviceable carrier accessible after removing the front cover. Replacement does not require opening the refrigeration circuit. Element resistance and over-temperature cut-out operation should be verified after replacement.
The platform supports heating capacities up to 2500W at the same external dimensions. Where the calculated winter heat loss exceeds 1500W, specify the higher heating capacity at time of order. Contact the sales team for the model reference.
Dimensional drawing, wiring diagram, cooling and heating capacity tables, refrigerant data sheet per circuit, Modbus register map covering both modes, mounting template, declaration of conformity, and factory test record including heater circuit verification.
Standard configuration lead time is 6 to 8 weeks. Orders above 30 units are scheduled individually. Custom voltages, heating capacities, or communication options add 2 to 3 weeks. Contact the sales team for a production slot quotation.
Standard warranty is 24 months from commissioning or 30 months from shipment. Compressor coverage extends to 60 months. Service parts including compressors, EC fans, controllers, PTC heater elements, and pressure switches are held for a minimum of 10 years from manufacture.
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Tailor-made solutions — from design to manufacturing, for your specific needs
CUSTOM ISO 9001 · CE Certified
Shanghai Soouney Refrigeration Equipment Co., Ltd.
A large-to-medium-sized high-tech enterprise integrating R&D, production and sales. Upholding "integrity, quality, service and innovation" — delivering reliable cooling solutions to the world.
11+
Export Countries
200+
Projects Delivered
19+
Years of Innovation
100%
Client Satisfaction
2007
Engineering Excellence in Refrigeration
Shanghai Soouney was founded with a vision to become a leading force in the refrigeration industry. We are China Cabinet Air Conditioner with Heater Manufacturers and Custom Cabinet Air Conditioner with Heater Suppliers. Today, we are a renowned brand in cabinet air conditioners and industrial chillers, recognised by professionals worldwide.
Rooted in the Chinese market, we provide reliable refrigeration solutions to clients across the globe — from standard products to professional customisation.
From standard products to professional customization — we deliver precision cooling.
R&D Driven
High starting points, stringent standards — continuous innovation
Integrity & Trust
Long-term partnerships built on transparency and after-sales support
Certified Quality
ISO 9001, CE, and industry-specific approvals across all lines
Global Mindset
Serving 40+ countries with tailored refrigeration solutions
"We don't just cool equipment — we build trust, one project at a time."
Why Soouney
Driven by Quality & Innovation
Committed to delivering excellence through continuous improvement and customer-centric solutions.
R&D Focus
High starting points, stringent standards — continuous product improvement
Integrity & Service
Long-term partnerships built on trust, transparency and after-sales support
Global Presence
Rooted in China, serving worldwide with reliable refrigeration solutions
Certified Quality
ISO 9001, CE, and industry-specific approvals for all product lines
