Picking Up Operation Signal - Hitachi RPI-0.8FSG1 Service Manual

Inverter-driven multi-split system heat pump air conditioners
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OPTIONAL FUNCTION
(4.1 Indoor Unit)

4.1.7 Picking Up Operation Signal

Parts Name
Auxiliary Relay *
Connector Cable
*: Do not use the relay with diode.
(*) Only for RPK (After Alteration): DC12V, PCC-1A
(1) Picking Up Operation Signal
This function is utilized to pick up the operation signal. By this function, operation signal at a remote
place can be checked, or operation at the fresh air intake fan motor can be interlocked. Connect
wires as shown below. The required parts are indicated in Table 4.3. Please note that the contact of
the auxiliary relay "RYa" is closed when this operation signal is given.
CN6 Connector
(2) Picking Up Alarm Signal
This signal is utilized to pick-up activation of safety devices. However, this function is not available
under abnormal transmission conditions of the remote control switch. Connect the wires as shown
below. The required parts are indicated in Table 4.3. Please note that the contact of auxiliary relay,
RYa is closed when one of the safety devices is activated.
4-8
Table 4.3 Required Parts for Modification
OMRON made High Power Relay Model LY2F DC24V (*)
PCC-1 (3P Connector Cable) (*)
CN6
(JST-XHP-3)
Picking Up Operation Signal
Picking Up Alarm Signal
Specification / Model
RPK-FSGM* (After Alteration)
3 Pin Connector Housing
(JST-XARP-3)
(*)
(JST-XHP-3)
CN7 Connector
CN7
2
1
RY
(*) Only for RPK (After Alteration):
JST XARP-3

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