User Guide

User Guide | Monitoring unit, type PR-OCTO
© Danfoss | Climate Solutions | 2022.04 BC391624209008en-000201 | 3
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.
3. Compatibility
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
Danfoss
80G8252
P
C
O
COMM connector: the TTL communication port
with the electronic thermostat. This is also the
connector for the temperature probe inputs.
Power supply connector: 100 – 240 V ~
Optional connector: the RS485/RS232
communication port for suitable thermostat.