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Hydraulic System
When installing the MAC unit, using closed water system is strongly recommended by McQuay, and
please refer to the schematic diagram below.
In order to ensure energy saving and system safe operation, McQuay has provided hydraulic system
accessories, including insulated stainless steel water storage tank, safety valve, dirt drainage valve, auto
air vent valve, Y-shaped strainer and automatic water fill valve etc.
Auxiliary heater in the diagram below is available for option, please choose either type of auxiliary
electric heater or auxiliary gas heater. If you have the demand, please contact with local McQuay sales
representation, and install it according to below diagram, if you have no need of this option, the
components in dotted line box can be omitted.
The design, construction and acceptance check of the hydraulic system should respectively refer to
and comply with the corresponding manual, code and standard.
Notes
Thermometer
Flexible Joint
Shutoff Valve
Shutoff Valve
Flexible Joint
Water Gauge
Check Valve
FCU
Flexible Joint
Heater
Water Supplement Valve
Globe Valve
Two Way Valve
FCU
FCU
FCU
Two Way Valve
Two Way Valve
Air Vent Valve
Three Way Valve
Unit
Accessory Hydraulic Kit
Dirt Drainage Valve
Y Strainer
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