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At the start of the next season, refill the unit with water and add an inhibitor.
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For the installation of auxiliary equipment, the installer must comply with basic regulations, especially for
minimum and maximum flow rates, which must be between the values listed in the operating limit table
(application data).
7.6 - Operation of two units in master/slave mode
NOTE: This operating mode is not available for 30XQ 1150-1502 duplex design units.
The control of a master/slave assembly is the entering water temperature and does not require any additional
sensors (standard configuration). 30XQ could not offer master/slave control at leaving water temperature point.
All parameters, required for the master/slave function must be configured using the Service Configuration menu. All
remote controls of the master/slave assembly (start/stop, set point, load shedding etc.) are controlled by the unit
configured as master and must only be applied to the master unit.
Each unit controls its own water pump. If there is only one common pump, in cases with variable flow isolation
valves must be installed on each unit. They will be activated at the opening and closing by the control of each heat
pump (in this case the valves are controlled using the dedicated water pump outputs). See the 30XQ Pro-Dialog
Control IOM for a more detailed explanation.
30XQ with master/slave control configuration (note: entering water control point only)
8- MAJOR SYSTEM COMPONENTS AND OPERATION DATA
8.1 Direct-drive twin-screw compressor with variable capacity slide valve
• 30XQ units use 06T geared twin-screw compressors equipped with a variable capacity slide valve for
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