STjh 81 kW cleanroom DX air conditioning unit with a medium refrigeration assembly visible in the service bay on white.

STJH-CLEANROOM-DX-AIR-CONDITIONING-81KW

Cleanroom Direct-Expansion Air Conditioning Unit 81 kW

An 80.7 kW gross-cooling precision DX unit with 7.2 m3/s airflow and two 2.41 l/s glycol heat-rejection paths.

80.7 kW gross cooling
7.2 m3/s airflow
Two 2.41 l/s glycol paths

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Product Introduction

The mid-capacity DX selection increases gross cooling to 80.7 kW and nominal airflow to 7.2 m3/s. Its documented twin 2.41 l/s glycol flows and R410A refrigeration match a larger coil and compressor selection for cleanrooms with medium-to-high sensible load.

Key Features

Higher mid-range output

The coil and compressor combination adds cooling capacity above the 73 kW build without moving to the largest selection.

Twin heat-rejection flows

Two glycol paths support the dual refrigeration circuits and their external heat-rejection connection.

Precision air-volume control

EC fan speed can be matched to the 7.2 m3/s distribution requirement and filter condition.

Technical Parameters

Gross Cooling Capacity	80.7 kW
Nominal Airflow	7.2 m3/s
Glycol Flow	2 x 2.41 l/s
Refrigerant	R410A
Compressor Type	Scroll
Refrigerant Circuits	2
Fan Type	EC variable-speed array
Humidity Control	Dehumidification with selectable reheat
Heat Rejection	Remote glycol-cooled arrangement
Customization	Glycol conditions, discharge arrangement and control sequence can be configured for the intended application and operating environment.

Applications

Medium-to-high-load cleanrooms, electronics production, precision laboratories and technical suites requiring close temperature and humidity control.

Solutions for Your Application

The process load sits above the smaller DX model but does not justify the largest cabinet selection.Apply the 80.7 kW build at the verified sensible and latent design point.

Heat-rejection pressure loss can differ between the two glycol branches.Balance both 2.41 l/s paths and provide accessible strainers and isolation at the unit connections.

Available Options

Air discharge direction, reheat, humidification, filtration, glycol pumping accessories, compressor controls and monitoring interfaces can be selected.

Planning a Cleanroom Direct-Expansion Air Conditioning Unit 81 kW specification?

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