Figure 1-4 Fans Main fan Sub fan Table 1-3 Fans Figure 1-5 Solenoids and clutches (product) PS4 PS1 M8001 SW501 PS8001 SL1 PS2 PS225 PS215 PS205 PS502 M8002 PS3 SL2 SW235 Table 1-4 Solenoids and clutches (product) 8 Chapter 1 Theory of operation ENWW Description Area cooled Type Speed Main fan (FM1) Inside the product Intake Full Sub fan (FM2) Inside the product Intake Full Item Description SL1 Tray 1 (multipurpose tray) pickup solenoid SL2 Cassette (Tray 2) pickup solenoid