Muller MHD & MHDE Heavy Duty Evaporator – Medium & Low Temperature Unit Cooler

Muller Heavy Duty Evaporators for Commercial & Industrial Refrigeration

The Muller MHD and MHDE Heavy Duty Evaporator Series are robust induced-draught unit coolers designed for demanding commercial and industrial refrigeration applications.

Manufactured for reliable heat transfer and heavy-duty operation, the Muller evaporator range incorporates a high-efficiency heat exchanger, 500 mm diameter fans, corrosion-resistant construction and a sturdy casing suitable for ceiling-mounted refrigeration systems.

The MHD series is designed for medium-temperature refrigeration applications, while the MHDE series is designed for low-temperature and freezer applications.

According to the Muller MHDE-1006 catalogue, the MHD range covers capacities from approximately 10 to 70 kW, while the MHDE range covers approximately 6 to 40 kW, depending on model and operating conditions.

Muller MHD Medium Temperature Evaporator

The Muller MHD Series is a Medium Temperature Heavy Duty Induced Draught Cooler using 4.23 mm tube spacing / 6 FPI fin configuration.

It is suitable for applications such as:

• Chiller rooms

• Fresh food cold rooms

• Food processing facilities

• Fruit and vegetable storage

• Dairy and food storage

• Distribution centres

• Commercial refrigeration rooms

• Industrial refrigeration systems

• Medium-temperature cold rooms

The MHD series is available with 1 to 5 × 500 mm diameter fans, with catalogue capacities ranging from approximately 10 kW to 70 kW.

MHD Medium Temperature Models

Important: The catalogue identifies the H suffix as the model with electric defrost. The MHD-H models are specifically preferred for electric-defrost systems.

Muller MHDE Low Temperature Evaporator

The Muller MHDE Series is a Low Temperature Heavy Duty Induced Draught Cooler using 6.35 mm tube spacing / 4 FPI fin configuration.

The MHDE series is designed for demanding low-temperature refrigeration and freezer applications where heavy-duty evaporator construction and reliable heat transfer are required.

Typical applications include:

• Frozen food cold rooms

• Freezer rooms

• Blast freezer applications

• Frozen food warehouses

• Meat and poultry storage

• Seafood storage

• Industrial freezer rooms

• Cold storage distribution centres

• Low-temperature process refrigeration

The Muller catalogue lists 11 MHDE low-temperature models, using 1 to 5 × 500 mm diameter fans, with capacities ranging from approximately 6 kW to 40 kW, depending on operating conditions.

MHDE Low Temperature Models

The catalogue rates the MHDE series under SC3 conditions of -25°C SST / -18°C room temperature / 7K TD, and SC4 conditions of -31°C SST / -25°C room temperature / 6K TD.

Muller MHD & MHDE Evaporator Features

High-Efficiency Heat Exchanger

The MHD and MHDE evaporators incorporate a high-efficiency heat exchanger designed to provide effective heat transfer for refrigeration applications.

500 mm Diameter Fans

The range uses 500 mm diameter fans, with configurations from 1 to 5 fans depending on the evaporator model and required capacity.

Heavy-Duty Construction

The casing is manufactured from 1.6 mm powder-coated aluminium, providing a robust construction for commercial and industrial refrigeration environments.

Corrosion-Resistant Hardware

Stainless-steel screws are used to help prevent corrosion and improve durability in refrigeration environments.

Easy Maintenance

A hinged access panel provides access to the TXV valve location, helping simplify installation, servicing and maintenance.

Reversible Drain Tray

The evaporator features a 180° reversible drain tray, providing flexibility for installation and drainage arrangements.

Strong Mounting & Shipping Supports

Heavy-duty supports are incorporated for shipping and ceiling mounting, making the units suitable for demanding cold-room installations.

Fan Motor Options

The standard configuration uses an Interlink external rotor type fan motor, with Ziehl-Abegg motor available as an option according to the catalogue nomenclature.

MHD vs MHDE – Which Muller Evaporator Should You Choose?

The catalogue states that capacity selection should be based on the specified operating conditions, refrigerant and KTD. Actual capacity is calculated from the rated capacity using the applicable capacity correction factor.

Refrigerant & Application Considerations

The catalogue provides capacity correction information for refrigerants including R404A, R407C, R22 and R507. Selection should therefore be made based on the actual refrigerant, suction saturation temperature, room temperature, KTD and refrigeration load.

For low-temperature applications, the catalogue provides performance references for both SC3 and SC4 operating conditions. Applications outside the published limits should be checked with the manufacturer or technical representative before final selection.

Muller MHD & MHDE Evaporator Applications

Muller Heavy Duty Evaporators can be used for a wide range of refrigeration applications, including:

Medium Temperature

• Cold rooms

• Chiller rooms

• Fresh food storage

• Food processing

• Dairy products

• Fruit & vegetable storage

• Distribution centres

• Commercial refrigeration

Low Temperature

• Freezer rooms

• Frozen food storage

• Meat & poultry cold storage

• Seafood storage

• Industrial freezer rooms

• Frozen food distribution

• Low-temperature refrigeration systems

Muller MHD & MHDE Model Number Search

For customers searching specifically by model number, the available models include:

MHD:
MHD060, MHD060-H, MHD083, MHD083-H, MHD115, MHD115-H, MHD130, MHD130-H, MHD173, MHD173-H, MHD210, MHD210-H, MHD255, MHD255-1, MHD290, MHD290-H, MHD340, MHD340-H, MHD470, MHD470-H.

MHDE:
MHDE051, MHDE071, MHDE081, MHDE101, MHDE131, MHDE151, MHDE181, MHDE221, MHDE251, MHDE281, MHDE341.

If you are searching for Muller evaporator, Muller unit cooler, Muller MHD, Muller MHDE, MHD060, MHD083, MHD115, MHD130, MHD173, MHD210, MHD255, MHD290, MHD340, MHD470 or MHDE freezer evaporator, this range provides multiple heavy-duty options for medium- and low-temperature refrigeration applications.

Technical Selection

Selecting the correct evaporator depends on several factors, including:

• Refrigeration capacity required

• Room temperature

• Evaporating / SST temperature

• Refrigerant

• KTD / TD

• Required airflow

• Air throw

• Defrost method

• Number of fans

• Cold-room dimensions

• Product load

• Desired room humidity

The catalogue specifies that applications outside the published operating limits may require changes to distributors, circuiting or defrost characteristics.

Contact us with your cold-room temperature, refrigerant, required capacity and application. We can help you select the appropriate Muller MHD or MHDE evaporator model.