Specifications

Maintenance
25
Decalcification
1. Insert the t ransport cart into the oven cavity.
(COS-20 and COS-201 only)
2. This unit is equipped with a GENERATOR
DRAIN VALVE located in the lower left hand
corner on the front of the unit. With the
applianceOFF, opentheGENERATORDRAIN
VALVE by moving the DRAINLEVER (1)tothe
right. Drain the generator completely.
3. Close the GENERATOR DRAIN VALVE by
moving the DRAIN LEVER to the left.
4. Lift the SAFETY VALVE WEIGHT and set to
ones ide, leavingaccesstothe decalcification
inlet (2).
5. Fill w ith water by turning the MODE SWITCH
(3) to STEAM MODE.
6. Pour concentrated decalcifying solution into
the inlet. Follow the decalcifying manufactur-
er’srecommended dilution ratios for thede-
calcifying solution.
COS-6 1 Quart
COS-101 a n d COS-101S 1.5 Quarts
COS-20 3.5 Quarts
COS-201 3 Quarts
7. 160-175_ F(71-80_C) are the workingtemper -
atures for the decalcifier. Allow the water and
decalcifier in the steam generator to heat for
approximately1 minute afterthe LOWWATER
INDICATOR (4) goes out. Switch to OFF.
8. Allowthechemicalstow orkforatleast60min-
utes. Overnight is preferred.
9. Drain the generator fully by opening the
DRAIN VALVE LEVER. (Swing to the right).
10. Rinse fully by filling and draining the genera-
tor.(Generatorfillsautomaticallywhen theunit
is in the STEAM MODE and the DRAIN VALVE
is closed). When the LOW WATER INDICA-
TORLIGHTgoesout,turntheMODESWITCH
to OFF and open the DRAIN VALVE by swing-
ingittot heright.Repeatseveraltimesforthor-
ough rinsing. Run the unit on STEAM MODE
for 5 minutes and drain the generator again.
Close the DRAIN VALVE.
11. The unit is now ready for normal use.
For an accurate measure of the hardness of your
water refer to your state water testing agency.
NOTE: The unit should be decalcified weekly.
Areasof thecountry withvery hard water may need to
decalcify on a more frequent schedule. Consult your
service agent or other water hardness authority.
*
1
2
3
4
COS -20 and COS -201
COS -6, COS -101 and COS-101S
1
2
3
4
NOTE: Equipment failure due to calcium buildup
in the equipment is not covered under the
warranty.