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Installation
Method C: Adapting AHU capacity to PACi outdoor unit capacity
The third possibility is to adapt the AHU Kit capacity to match the capacity of the currently used
NX
PACi or PACi NX outdoor unit.
i
Important
Method C is applicable to the following combinations of PACi outdoor units and AHU Kits:
To change the relevant setting, invoke the "Detailed settings" mode on the AHU Kit's integrated
remote controller (CZ-RTC6BL).
1. Verify that the display of the integrated remote controller is working, then stop the system and
2. Simultaneously press and hold the relevant three-button combination on the remote controller
4
3. On the "Maintenance func" screen, scroll through the menu items with the "UP" and "DOWN"
48
● PACi PZH2 outdoor units (R32) and PAH3 AHU Kit model
● PACi NX PZ3/PZH3/PZH4 outdoor units (R32) and PAH3 AHU Kit model
power it on again before performing the following steps.
(see below) for at least 4 seconds, until the "Maintenance func" screen appears on the display.
Note:
If the system is a combination of a PACi NX outdoor unit (PZ3/PZH3/PZH4) and a PAH3 AHU
Kit model, this step has to be performed within 30 seconds after powering on the system while
auto-addressing is in progress and the message "Assigning" is shown on the display, otherwise
error E16 will occur. In this case, repeat steps 1 and 2 and mind the time limit.
buttons, and select "Detailed settings" by pressing the "ENTER" button when it is highligted in
the list.
Maintenance func
Simple settings
Detailed settings
Auto address
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AHU Kit – Installation Instructions – 07/2023
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