Danfoss PR-OCTO User Manual Download

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Fig 7: In case of metallic protection, do not cross the indicated line otherwise the signal of the internal antenna
results corrupted.

6. Installation in the coolers

During the industrial production of the coolers, there should be a phase in which the electronic

thermostat is installed. In the same phase, also the OCTO device has to be installed. The following pre-

conditions have to be satisfied:

Pre-condition 1: The installation position has to be determined during the analysis performed as

described in Section 5.

Pre-condition 2: One COMM CABLE for each cooler has been correctly assembled for the

corresponding thermostat model with the appropriate length with respect to the

position of both the OCTO and the electronic thermostat.

Pre-condition 3: A power supply cable has been prepared using one of the connectors illustrated in

Fig. 4.

Pre-condition 4: If a metal protection is provided, this must not cover the antenna of the device (see

Fig. 7).

Pre-condition 5: the controller has to be programmed in order to properly manage all the sensors.

Thus, for example, if a door sensor is installed, even if it is not needed for the cooler

management (i.e. no need to switch off the fan), the controller must be programmed

in order to properly detect and manage the door sensor itself. For any clarification,

ask to your local Danfoss agent.

For the installation, the following steps have to be performed:

Step 1:  While the cooler is off, put the OCTO unplugged inside the cooler in the appropriate position.
Step 2:  Connect the COMM cable to the thermostat and to the OCTO.
Step 3:  Connect the power supply cable to the OCTO while such cable is not powered, as illustrated in

Fig. 3.

Step 4: Install the protection, if any.
Step 5: Power on the cooler (and consequently the OCTO). The red led of the OCTO starts blinking.

Wait until the red led stops blinking. If it results always on, then the device is powered and the

communication with the electronic thermostat is correctly established.

Step 6: Wait until the green led remains always on.
Step 7: In case of success in STEP 6, and only in such case, the cooler code and the OCTO code have

to be associated. This association is illustrated in Fig. 8. Both the cooler serial number and

the OCTO Device Code have to be read using a bar code reader and to be traced in a special

document where the cooler model, the cooler serial number and the OCTO device code must

be written.

Note:

In case STEP 7 is not properly executed, the future owner of the cooler will not recognize the

cooler through the Prosa infrastructure.

DO NO

T CROSS

DO NO

T CROSS

5 cm