Jet-tech 727, Руководство пользователя, Страница: 16 / 28

AIR PRESSURE SWITCH ADJUSTMENT
• The air pressure switch works in conjunction with the air trap in the wash tank
to regulate the water level in the wash tank.
• Check the exploded view for the model you are servicing to determine the
location of the air pressure switch.
• When the machine is first turned on and if the wash tank is empty, the air
pressure switch sends power to the water inlet valve. As the water level rises in
the wash tank, air pressure is created in the air trap. The air pressure hose sends
this air pressure to the air pressure switch. When the predetermined air pressure
is achieved, the air pressure
switch switches the power from
the water inlet valve to the
booster thermostat.
• Before adjusting the air
pressure switch, ensure that there are no obstructions or blockages in the air trap
or the hose.
• The adjusting screw (Phillips head) is located in the middle of the air pressure
switch. Adjustments should be made in 1/8 of a turn increments, clockwise to
lower the water level and counter clockwise to increase the water level. The
wash tank must be emptied and refilled with every adjustment to determine if
the correct adjustment has been achieved. (1/2" from top of the overflow pipe).
NOTE: Several models have the air pressure switch located in the "Slide Out" control panel. Do not pull the drawer out so far as
to pull the air pressure hose off the air pressure switch.
F16 & F16DP
F18 & F18DP F20-F22-747
727&737