9. Check and test...........................................................................................294
9-1. Test run........................................................................................................................294
9-2. Error code ....................................................................................................................296
9-3. Pump down..................................................................................................................297
10. Optional parts installation........................................................................299
10-1.Drain pump unit for duct type (UTZ-PX1NBA) ............................................................299
10-2.Drain pump unit for ceiling type (UTR-DPB24T) .........................................................302
10-3.Fresh air intake kit for cassette type (UTZ-VXRA) ......................................................303
10-4.Fresh air intake kit for compact cassette type (UTZ-VXAA) ........................................313
10-5.Auto louver grille kit (UTD-GXTB-W) ..........................................................................322
CONTENTS (continued)
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