FDI P2131, Technical Manual, Page: 42 / 161

Function(s) of Control or Indicator (Right Side of WRS)
ITEM CONTROL/INDICATOR FUNCTION
1. LOW Water Line
Water level in the tank is indicated by the position of a
floating ball inside the Sight Gauge tubing. On S/N’s after
AFS ‐ 0236, a water line in the Sight Gauge tubing indicates
the water level. During operation, the water level should
be at or near the HIGH water line (when the jacket is at
the HIGH mark). If the water level becomes too low, the
Low Level Switch (located underneath the tank near the
motor) will activate and prevent the pump from running
dry. If the pump starts and stops, or will not operate,
water likely needs to be added to the WRS.
2. HIGH Water Line
Water level in the tank is indicated by the position of a
floating ball inside the Level Gauge tubing. On S/N’s after
AFS ‐ 0236, a water line in the Sight Gauge tubing indicates
the water level. During operation, the water level should
be maintained at or near the HIGH water line. Overfilling
and running the WRS with water above the HIGH mark
(when the jacket is at the HIGH mark) may result in water
“burping” out of the relief vent or breather on top of the
WRS water tank.
3.
Water Return Switch
(SW ‐ 2)
A push ‐ button that turns ON the pump to flow water into
the sterilizer when pressed. Releasing the switch will stop
the flow of water.
4. Power Switch (SW ‐ 3)
A two ‐ position switch that turns electricity ON and OFF to
the WRS. This switch also has a 20 ‐ amp circuit breaker
built into the switch.
5. Power Connection
Where the power cord from the SMU is plugged into the
WRS to provide power to the WRS.
6.
(Tank) Drain
Connection
Allows water to drain from the WRS. When the WRS
needs to be drained, the high ‐ temperature drain hose on
the SMU can be used.
7. (Water) Fill Connection
A male cam ‐ and ‐ groove fitting where the clear outlet hose
from the SWS is connected.
8. Motor Access Hole
An access hole to insert screwdriver to rotate motor
(Note: For maintenance technician only. This hole no
longer exists on S/N’s after AFS ‐ 0236).
9.
Pump Drain
Connection
Allows water to drain from Pump and Pump plumbing.
(Note: For S/N’s AFS ‐ 0001 – 0236, there is a petcock valve
mounted directly on the pump).
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