Greenheck MSX (470658) - Manual (Page 11)

11 Modular Supply Make-Up Air Unit
®
Evaporative Cooling with Auto Drain and Fill
Supply
Line
VALVE B
Supply Line Drain Solenoid
(Normally Open)
Sump Overflow
Sump Drain
VALVE C
Sump Drain Solenoid
(Normally Open)
VALVE A
Supply Solenoid
(Normally Closed)
Drain Line
Trap