Hitachi RWM-(H)FSN3E, Руководство по обслуживанию

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7 Optional functions
SMGB0070 rev. 1 - 08/2011
208
7.1.10 Indoor external output signals
The system has four output optional signals. Signals are programmed on the indoor unit’s PCB using the CN7b. The output
connectors have four ports (CN7b) to configure four output options out of the eleven options the system has

Available ports
The system has the following input and output ports.
Indication Port Setting on the Indoor Unit’s PCB Remarks Output
Output
o1 1-3 on CN7b DC 12V
o2 1-4 on CN7b DC 12V
o3 1-5 on CN7b DC 12V
o4 1-6 on CN7b DC 12V
Additional HAPE accessory can be used for easy connection, for more information refer to PCB relay outputs manual

Configuration
Unit switches to this mode when DSW4-8 is turned ON during unit stoppage.
Available optional signals
The unit have optional signals, described in the following table:
Code Name Description Port
o1
Operation signal
This signal allows control of the machine’s status at all times; it is very useful
for centralized applications.
The signal will be enabled when Thermo ON operation
CN7b / 1-3
o2
Alarm signal
This signal allows activation of mechanisms that protect from and warn of
possible failures in the unit.
The signal will be enabled when the unit is in alarm (indoor or outdoor)
CN7b / 1-4
o3
Cooling signal
This signal allows control of cooling operation status. For closed valves in
Radiators or On signal for Fan coils.
The signal will be enabled when Cooling operation.
CN7b / 1-5
o4
Thermo-OFF signal
during circuit 1
Signal is enabled when circuit 1 is operating in Demand-OFF.
The signal will be enabled when Demand OFF in circuit 1.
CN7b / 1-6
Component Manufacturer or specifications Remarks
Auxiliary relay (X3)
OMRON mini power relay model: MY1F or
equivalent
Voltage between relay terminals 12 Vdc - 75 mA
Wire (control) Voltage 12V DC 0.5 mm
²
Wire (power) Voltage 230V 2.0 mm
²