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Marine Air Systems offers a variety of controls for its line of Direct Expansion (DX) and Chilled Water (CW)
air conditioners.
DX Controls
NEW! ELITETM Environmental Control
State-of-The-Art-Technology!
The new Elite has a sleek, modern Euro design and is a decorator’s dream come true!
The control snaps easily into decorative Vimar® bezels, which are available (separately)
in dozens of colors and materials including wood, metal and thermoplastic.
The Elite has all of the features and benefits of the old Passport® II, and more.
The control works with the new Passport I/O circuit board, which utilizes state-of-the-art SMT technology.
Programming the control is easy, thanks to the addition of one-touch key modes and scrolling buttons.
This new control is “Flash Programmable”, which allows for easy software upgrades in the future. It also
features the new “Pump Sentry” seawater sensor option designed to better monitor pump operation.
Elite Retrofit Kits are available for upgrading either Passport II or mechanically controlled units in the field.
NEW! Passport I/O Environmental Control
The new Passport I/O display has the same look and feel as the old Passport II but with a few new features.
Both the Passport I/O and Elite digital controls work with the new Passport I/O circuit board, which utilizes state-of-the-art SMT technology;
the software logic is in the displays rather than on the circuit board.
New features of the Passport I/O include: an electric heat relay so electric heat is now a convenient option with DX units;
and a new programmable parameter allowing the seawater pump to be set for continuous operation, or to cycle with the
compressor.
The I/O circuit board has an additional air sensor connection, so the customer can now use the remote air sensor in
the cabin and still monitor outside air temperature.
Passport I/O Retrofit Kits are also available.
Mechanical Controls
Mechanical controls are also available for use with the DX product line and
are a reliable low cost option. The controls come in either horizontal or vertical configurations.
The 3-Knob control is sold with Central Systems, Vector Compacts and Cabin Mates,
and the 2-Knob control is for use with the Cool Mate do-it-yourself kits.
CW Controls
Chilled Water Master Controller (CWMC)
The Chilled Water Master Controller (CWMC) is our premiere chiller control.
The CWMC is the brain that controls the individual Digital Diagnostic Controllers, (DDC), on a multi-staged chiller.
It manages all cooling and heating functions for each chiller stage, as well as operation of the seawater
and chilled water pumps.
It optimizes compressor operation by automatically changing the lead compressor to evenly distribute run time.
The CWMC monitors chiller operating status as well as all safety protection systems.
DDCs can and do stand-alone as a single stage or multi-staged chiller controls. The addition of Pump Relay Panels (PRP)
and remote DDC switches are necessary when not using the CWMC.
AH-Elite & AH-Passport I/O Environmental Controls for Air Handlers
The Elite and Passport I/O controls described above are also available for Chilled Water air handlers, and
are designated by the "AH" at the beginning of the name.
The AH-Elite is, by far, the choice of mega-yacht designers everywhere.
Just like the Elite for DX Systems, the AH-Elite fits into Vimar type bezels used in most mega-yachts today,
and are also available in a rainbow of colors.
AH-Passport I/O and AH-Elite Retrofit Kits are available for upgrading either AH-Passport II or mechanically
controlled units in the field.
Mechanical Controls
Mechanical controls are also available for use with the CW product line and
are a reliable low cost option.
The MCP-AH 3-Knob control may be used with any standard air handler, while the
MCP-AH 2-Knob control is for use with “no-valve” air handlers only.
Other Chilled Water Controls
Staged, Modular, and Compact Chillers (SCW, MCW, and CHC) have their own set of digital chiller controls.
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