TM 11-6780-225-12
Control
Function
Position
Operation
flow from
the
sink
and
the water
heater
pres-
sure relief
valve to
the floor
drain.
Closed .......... Diverts drain
water from
sink to
valve D1.
Drain valve D4
Open ............ Allows water
flow from
the water
heater to
the floor
drain.
Closed .......... Prevents wa-
ter flow
from the
water heat-
er and di-
verts cold
water sup-
ply to water
heater and
valve S-5.
Drain valve D5
Open ............ Allows water
flow from
the control
unit to the
floor drain.
Closed .......... Prevents wa-
ter flow
from the
control unit.
Drain valve D6 (strainer)
Open ............ Allows wa-
ter to flow
Figure 2-10. Refrigerator control
out of the
Control
Function
input wa-
Position
Operation
ter strainer
into water
on to floor.
pump
Closed .......... Prevents wa-
through
ter flow
valve P-1.
from out
Drain valve D2 .................. Open ............ Allows water
of the in-
to flow out
put water
of the
strainer.
water tank
Drain valve D7 (pump)
Open ............ Allows re-
to the floor
sidual wa-
drain.
ter to flow
Closed .......... Keeps water
out of the
from drain-
water
ing out of
pump
the water
onto the
tank.
floor.
Drain valve D3 .................. Open ............ Allows water
Closed .......... Prevents wa-
ter from
flowing
out of the
water
pump
2-12