1 | MI_2322: Retrofit 4-way relay PCB L, XL
11. Use the cable trunk W58 to connect connection X329 on the 4-way relay
PCB to connection X29 on the I/O PCB.
12. Close the electrical compartment as described in the original installation
manual for the units iVario Pro L / XL section 6.6 Closing the electrical
compartment.
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The 4-way relay PCB is installed.
Work steps – Connections
Work steps – Activating the 4-way relay
1. Switch the unit on. Go to the service level.
2. Open the Options page under the Service settings (1).
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