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2. Simultaneously press and hold the relevant three-button combination on the remote controller
(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) 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.
3. On the "Maintenance func" screen, scroll through the menu items with the "UP" and "DOWN"
buttons, and select "Detailed settings" by pressing the "ENTER" button when it is highligted in
the list.
4. On the "Detailed settings" screen, the "Unit No." option will be highlighted.
Note: If auto-addressing has been completed before, the relevant unit number will be displayed,
or if not, "All" will be displayed instead.
With the "UP" and "DOWN" buttons, change the value to the unit number of the relevant system,
and press the "ENTER" button to confirm the new setting.
5. Highlight the "Code No." option using the "RIGHT" button (RTC5B) or the "DOWN" and
"ENTER" buttons (RTC6BL) respectively. With the "UP" and "DOWN" buttons, select the
value "11" (Code No. 11 = Adapting indoor unit capacity), and press the "ENTER" button to
confirm this setting.
AHU Kit – Installation Instructions – 11/2021
PAH2 models: CZ-RTC5B
+
+
CZ-RTC5B
—
Maintenance func
20:30 (THU)
5. Sensor info.
6. Servicing check
7. Simple settings
8. Detailed settings
Sel.
Page [
] Confirm
CZ-RTC5B
—
Detailed settings
20:30 (THU)
Unit no.
Code no.
Set data
3-1
10
0001
Sel.
Next
Installation
PAH3 model: CZ-RTC6BL
+
+
CZ-RTC6BL
—
Maintenance func
XX / XX
Simple settings
Detailed settings
Auto address
[
]
[
]
CZ-RTC6BL
—
Detailed settings
Unit no.
1-1
Code no.
000010
Set data
0001
0001
[
]
[
]
61
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