Oilon Lampoassa RE 28-48, Инструкция по установке и эксплуатации, Страница: 38 / 78

6 Cascade connection
6.1 Cascade connection
In a cascade connection, two or more heat pumps are connected to a system that is
controlled by a single heat pump controller. One of the RVS61 heat pump controllers
connected to the system operates as the master controller (which controls the entire
system), and the other RVS61 controllers operate as slaves (which are controlled by
the master controller). Heat pump controllers are connected to each other through an
LBP bus. The system may contain up to 16 controllers (heat pumps).
In RE models consisting of two compressor units (RE 56–96), the upper unit’s
controller (A1.0) is the master controller and the lower unit’s controller (A2.0) is the
slave controller. The controllers are identical, but the slave controller’s address has
been changed to a slave address (value on line 6600 set to 2).
The controllers are connected via an LPB bus (DB+/MB–). The heat pump comes
with the storage tank sensors (B3 and B4) and the shared flow sensor (B10) already
connected to the master controller.
● Connect the outdoor temperature sensor (B9) also to the master controller.
If the system includes several heat pumps (several A1.0 controllers), connect sensors
B3, B4, B10 and B9 to the A1.0 controller that controls the entire system, and
disconnect the sensors from the other A1.0 controllers.
● Disconnect the sensors by disconnecting the sensor’s connector from the relevant
controller.
● If necessary, the disconnected sensors can be used for other functions.
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