II
Energy-Recovery Ventilation
System Service Manual
Contents
PRODUCT ............................................................................................... 2
1 MODELS LIST ....................................................................................................2
2 NOMENCLATURE...............................................................................................2
3 FEATURES..........................................................................................................2
4 PRODUCT DATA.................................................................................................3
5 PIPING DIAGRAM...............................................................................................5
CONTROL................................................................................................ 7
1 OPERATION FLOWCHART................................................................................7
2 MAIN LOGIC .......................................................................................................8
3 WIRED REMOTE CONTROLLER.......................................................................9
INSTALLATION...................................................................................... 18
1 DIMENSION DATA ...........................................................................................18
2 INSTALLATION SITE .......................................................................................19
3 UNIT INSTALL...................................................................................................19
4 CAUTIONS FOR INSTALLATION ....................................................................20
5 ELECTRIC WIRING WORK ..............................................................................21
MAINTENANCE..................................................................................... 24
1 TROUBLE TABLE ............................................................................................24
2 FLOW CHART OF TROUBLE SHOOTING .....................................................25
3 WIRING DIADRAM ...........................................................................................26
4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ...............28
5 EXPLODED VIEWS AND PART LIST...............................................................30
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