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User Guide | Monitoring unit, type PR-OCTO
3. Compatibility
© Danfoss | Climate Solutions | 2022.04
Fig. 2: Side B
Table 1: LED operation details
RED LED OFF
The device is not correctly powered.
RED LED blinking
The device is powered and the communication with the electronic thermostat is not
established yet.
RED LED ON
The device is powered and the communication with the electronic thermostat is
correctly established.
RED LED fast blinking
The device is powered while the communication with the electronic thermostat has
been interrupted.
GREEN LED OFF
The modem is not running
GREEN LED fast blinking
The modem is not registered to the network
GREEN LED blinking
The modem is registered to the network
The PR-OCTO device gives the possibility to execute the lock command and to collect the diagnostic
information only in conjunction with an electronic thermostat.
The current version of the PR-OCTO includes the compatibility with the thermostats listed in Table 2.
Table 2: Compatible electronic thermostats
Manufacturer
Models
Danfoss
ERC111, ERC112, EETa
Eliwell
EWPLUS400, EWPLUS961, EWPLUS974, EWPLUS974 Smart, EWPLUS978
Carel
PJP4C0HG00 (PYUG3R05R3, PYKM1Z051P), PZPU family (es. PZPUCOMB03K, PZPUCOMB06K),
PYHB1R055S (PYFZ1Z056M), PZHBC0H00V, PYHB1R057F (PYHB1R05E9), PJP7C0HG00
Power supply connector: 100 – 240 V ~
P
Optional connector: the RS485/RS232
O
communication port for suitable thermostat.
C
COMM connector: the TTL communication port
with the electronic thermostat. This is also the
connector for the temperature probe inputs.
BC391624209008en-000201 | 3
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