Features
• High Energy Efficiency Rating
The McQuay MWH series of water source heat pumps have energy efficiency ratings as high as 16 and provide
better energy consumption than that of most conventional air-cooled systems.
• Packaged Unit. Compact. Low Height Profile.
The McQuay MWH series of horizontal water source heat pumps is a packaged unit consisting of compressor (2 off in
MWH025 and above), coil, tube in tube heat exchanger, expansion device and forward curved centrifugal blower. All
units in this series have a very low profile, from 250mm for the MWH011B/BR, which has a horizontal compressor, to
the largest unit in the range at 500mm.
• No Separate Outdoor Unit
The packaged design concept eliminates the need for a separate outdoor unit. Also, the tube in tube heat exchangers
in the MWH range do not need a fan to transfer heat load, resulting in a much quieter environment for building
occupants.
• Double Isolation Panel, Less Vibration
Unlike other conventional designs, the MWH series of water source heat pumps apply a double insulation concept,
where the compressor is mounted on an extra upper panel. Vibration generated by the compressor is absorbed twice
to the rubber grommets, before it reaches the unit casing.
• Extremely Quiet Design
No outdoor fan, double isolation panel for compressor, superior insulation and use of twin rotary compressors in
models above MWH025B/BR all add up to a quieter design. Particularly in night set back mode.
• Application Flexibility
The McQuay MWH B/BR series has a wide range of operational temperatures. This means the entering water
temperatures can be adjusted from 13°C – 45°C for cooling and 10°C – 32°C for heating.
• Safety Protection Devices
Several safety protection devices are integrated into the MWH B/BR range of heat pumps to monitor their operation
as well as provide necessary protection for all standard operational functions.
• Partial Loading Capability
For MWH025B/BR to MWH070B/BR, which are having two compressors in their system, the capacity loading of
compressors are able to controlled at 50% or 100%.
• Sequencing Control
For the MWH025B/BR to MWH070B/BR, the compressors are able to operate in sequencing mode. This will allow
both compressors to cut in and out according to their accumulative run times. This dramatically improves the
compressor life and reliability.
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