Product Overview

MHC Series combo air conditioner integrates two temperature-control systems in one unit — compressor refrigeration and a heat exchanger — to deliver maximum energy efficiency for telecom and energy storage cabinets. Covering 1000-3000 W cooling capacity on 48VDC input with IP55 protection and -40 to +55 °C operation, it is built for cabinets that need year-round cooling with the lowest possible power draw: in warm weather the compressor handles the load, while in cold weather the heat exchanger provides free cooling without running the compressor at all.

Combo air conditioner with heat exchanger and control panel

Key Features

Dual-system design: compressor refrigeration plus heat exchanger in one enclosure unit, maximum energy saving
48VDC input: direct connection to the telecom -48VDC bus
Free cooling mode: below a set ambient threshold the heat exchanger cools without compressor power
IP55 protection: dust-tight and water-jet resistant for outdoor cabinets
Wide temperature range: -40 °C to +55 °C operation
Eco refrigerant: R134a; RS485 remote monitoring and multi-function alarm output

Model Range & Specifications

Model	Cooling Capacity (W)	Input	Dimensions H×W×D (mm)
MHC1008	1000	48VDC	945×505×200 (981×541×200 with flange)
MHC1508	1500	48VDC	945×505×200 (981×541×200 with flange)
MHC2010	2000	48VDC	1295×600×220 (1350×555×220 with flange)
MHC3012	3000	48VDC	1295×600×220 (1350×555×220 with flange)

All models use R134a refrigerant with IP55-rated enclosures and support RS485 status reporting; optional heaters and OEM dimensions are available on request.

MHC Series vs. Compressor-Only Cabinet Coolers

A compressor-only unit must run whenever the cabinet needs cooling, drawing 300-1150 W continuously. The MHC combo design adds a heat exchanger loop: when ambient temperature drops below the setpoint, cabinet heat is rejected through the heat exchanger with fans only, cutting cooling power by a large margin in cold and temperate climates. For telecom and storage sites in Europe, Russia and high-altitude regions, this free-cooling mode typically operates for a significant part of the year, making the MHC Series the efficiency choice for 48VDC cabinets that run 24/7.

How to Select the Right Model

Size on heat load as with any cabinet air conditioner: total equipment heat plus solar radiation gain, with the unit rated at 1.2-1.5 times the internal load. MHC1008 and MHC1508 fit standard outdoor telecom cabinets with 1-1.5 kW of load; MHC2010 and MHC3012 serve larger integrated cabinets and small energy storage enclosures with 2-3 kW of heat. Because the MHC adds a heat-exchanger core inside the same frame, confirm cabinet side-panel space before ordering — the 1295×600×220 mm outline of the 2010/3012 models is larger than a same-capacity compressor-only unit.

Applications

Telecom outdoor cabinets and integrated power cabinets on -48VDC systems
Energy storage enclosures and battery cabinets requiring year-round efficiency
Edge computing and FTTx outdoor equipment enclosures in temperate climates
Solar-powered sites where every watt of cooling power matters

Combo air conditioner installed beside energy storage cabinet

Product Views

Combo air conditioner front view with digital control panel

Frequently Asked Questions

Q: When does the heat exchanger mode actually save power?

A: Whenever ambient temperature falls below the cabinet setpoint — commonly at night and during cold seasons. The heat exchanger then rejects cabinet heat with fans only instead of running the compressor, which is where the MHC’s energy savings come from. In hot climates with little cool season, a compressor-only unit may be more economical.

Q: Does the MHC Series fit the same cutout as a standard side-mounted cabinet cooler?

A: The 1008/1508 models use a 945×505×200 mm frame close to standard side-mounted units, while the 2010/3012 models use a larger 1295×600×220 mm frame to house the heat-exchanger core. Check your cabinet side-panel opening or order an OEM size to match.