Specifications

MS TECHNICAL MANUAL
LAST UPDATE 12-10-04
1060003 12/04
MS Component Description & Function
Solenoid Valve: Used in direct water feed units the MS-250/255, it is a normally closed 24 VAC water valve that is
electrically operated for approximately one second by the control board during a steam cycle.
NOTE: The “IN” & “OUT” markings on the valve body must correspond with water flow, otherwise, the valve will
leak through. If the valve is installed correctly and leaking through, debris/speck has become lodged within the
plunger & body area. Disassembly & cleaning of the plunger area is simple. See “Parts Testing & Replacement
Procedure” section.
Water Pump: Used in water tank equipped units the MS-150/155/355, it is a 24 VAC oscillating pump that is
electrically operated for approximately 1 second by the control board during a steam cycle. It pumps water
(Approximately ¾-1 oz 25-30 ml) from the tank reservoir onto the generator surface. It consists of an internal intake &
discharge check valve that are replaceable.
NOTE: The arrow on the body must correspond with water flow. If the pump bleeds through, it indicates that
debris has become lodged within the pump & check valves. Disassembly & cleaning of the pump & valves is
simple. See “Parts Testing & Replacement Procedure” section.
Quick Disconnect Female: Used in direct water feed units the MS-250/255, it is mounted at the rear of the
unit & engages with a male fitting to form a leak proof union that allows water flow to the inlet side of the solenoid valve.
The union can be easily separated by pressing the quick release tab on the fitting.
Quick Disconnect Male: Used in direct water feed units the MS-250/255, it is a male elbow fitting that engages
with the female fitting to allow water flow. It contains a spring loaded “white” extended nylon tip (A retracting internal
flow valve). The barbed end of the fitting is attached to the nylon braided water supply line while the side with the
“white” extended nylon tip is to be fully pushed into the female fitting until a “Click” is heard. NOTE: The “Click”
indicates the fitting is locked into position & the extended nylon tip has retracted to allow water flow.
Generator Diffuser Plate
: A circular shaped plate with many small orifices. Helps contain & prevent loose
particles from being directed onto the food product