YORK ® AIR-CONDITIONING PRODUCTS
Features and performance
Brushless DC compressors with inverter
technology
• Adapting cooling capacity to the real requirements of the plant is
one of the principal conditions of guaranteeing the flexibility required
by the most advanced systems. By incorporating BRUSHLESS
DC INVERTER technology into the compressors it is possible to
maximize the performance of the motor, especially at partial loads,
the control of which is integrated in the microprocessor.
• The cooling coils of the downflow units (YC-UP), both in chilled
water and direct expansion versions, have aluminium fins with a
hydrophylic treatment that alleviates the risk of condensation and
the coil face being covered with water, which would compromise the
thermal performance and therefore the air conditioning capacity.
• T
he use of the environmentally friendly refrigerant HFC R410A does
not contribute to the depletion of the ozone layer.
• T
hanks to its larger surface area, the filter on the coil allows lower
face velocity, which results in lower pressure drop.
• T
he lower energy consumption of these air conditioners, at the
same efficiency, results in a much reduced TEWI (Total Equivalent
Warming Impact). The application of EC plug fans reduces both
energy consumption and noise levels.
Microprocessor regulation
The Standard digital microprocessor
• allows management of all typical air-conditioning functions: cooling,
heating, humidification, dehumidification and filtering
Local network management or remote control
YORK ® YC-P Series air conditioners are capable of standalone
operation, local private network with multiple units (up to 12) or fully
integrated with Metasys ® Building Management System from Johnson
Controls.
The YORK ® YC-P Series are equipped with an innovative local
network monitoring (LAN) system that simplifies management, simplifies
maintenance, and optimizes operational safety.
The innovative smart net system allows to revolutionize the local
network concept. In fact, taking advantage of the modulation capabilities
of the components, this system allows you to actively share the
workload between all units in the local network.
Thanks to the breakdown of the workload, it is possible to increase the
efficiency of the system by partially requesting the main components
such as fans, compressors, electric batteries and humidifiers.
This partitioning translates directly into energy savings of up to 60%
compared to redundant networks. In fact, instead of having active units
that work 100% of their performance while one (or more) machines are
stationary, the smart net system allows the entire unit group to have 50
or 60% of their maximum workload.
In remote applications, the machines can be controlled from remote
positions interfacing with common Building Management Protocols such
as BacNET, LON and Modbus, either via GSM Modem or TCP/IP Internet
Protocol.
For total integration with Johnson Control Metasys ® Building
Management Systems (BMS) the units are equipped with an RS485 card
working with BacNET MS/TP protocol.
• ensures a regular and optimised operation as to both performance
and consumption, providing as well alarm management and self-
diagnosis.
Cooling circuit
The air conditioners with direct expansion coil have a frigorific
circuit equipped with: scroll compressor with all necessary protective
devices, high pressure (manual reset) and low pressure (automatic
reset) switches, dehydrating filter with refrigerant sight glass.
YC-OPA, YC-UPA models for pairing with remote condensers,
are already equipped with a pressurisation nitrogen charge. The
refrigerant charge, and the oil top-up (if required), shall be made by
the installer on site.
YC-OPA and YC-UPA air conditioners in self-contained packaged
format with built-in water-cooled condensers (accessory), are
supplied with full refrigerant and oil charge.
Manufacturer reserves the rights to change specifications without prior notice.
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