STjh 42 kW air-to-water heat pump with an enlarged coil cabinet and integrated hydronic compartment on white.

STJH-AIR-TO-WATER-HEAT-PUMP-42KW

Air-to-Water Heat Pump 42 kW

A medium reversible air-to-water heat pump in the 41.8 kW heating class with larger coil and compressor hardware than the compact unit.

41.8 kW heating class
Medium reversible hydronic duty
Enlarged outdoor coil and compressor

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Introduction de produit

The medium chassis begins around 41.8 kW of heating capacity and uses a larger scroll compressor and outdoor coil than the 20 kW platform. It supplies reversible hydronic conditioning for clean support and utility areas with a more substantial simultaneous building load.

Key Features

Medium-loop capacity

The larger refrigeration system serves several support zones or one medium hydronic air-handling load.

Reversible water production

The unit produces warm or chilled water from the same outdoor package as seasonal demand changes.

Expanded air-side surface

A larger outdoor coil handles the heat transfer associated with the higher capacity class.

Paramètres techniques

Heating Capacity	Approximately 41.8 kW class
Cooling Capacity	Matched reversible medium-capacity range
Compressor Type	Scroll
Refrigerant	R410A referenced range
Condenser/Evaporator	Outdoor finned air coil
Water Heat Exchanger	Factory packaged hydronic circuit
Operating Modes	Heating and cooling
Capacity Control	Staged or modulating operation by selection
Installation	Outdoor structural base
Customisation	Leaving-water conditions, hydronic accessories and winter package can be configured for the intended application and operating environment.

Applications

Medium clean support buildings, pharmaceutical utilities, laboratory groups and air-handling coil loops needing reversible heating and cooling.

Solutions for Your Application

The 20 kW heat pump cannot meet the combined coil demand during peak weather.Apply the 42 kW-class chassis after confirming heating and cooling design points separately.

Winter operation may face low ambient and freeze risk.Select low-ambient control, suitable water antifreeze strategy and freeze protection for the final climate.

Options disponibles

Pump and tank module, backup heat, low-ambient accessories, coil coating, flexible connections, remote monitoring and staged controls are available.

Planning a Air-to-Water Heat Pump 42 kW specification?

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