3-5
Preventive Maintenance
Routine Maintenance
129367-410
*17.1 mg/L = 1 grain hardness
NOTE: If generator is not at 0.0 psig, the Flush can be bypassed by pressing
CANCEL, however the flush should not be bypassed on a continuous basis or
else damage to the generator will occur.
To ensure generator is at 0.0 psig the sterilizer can be shut off at end of the day
and by next morning the unit will be able to be flushed. Approximately seven
hours is required for generator to cool down to less than 140°F (60°C).
3. Open drain valve on the side of the generator electric box (see Fig. 3-1).
4. Verify that the water supply valve to the sterilizer are open.
5. Ensure the water supply valve to the generator is open (see Fig. 3-1).
6. Press
START TIMER
on screen #72. Water automatically flushes through
the generator and out the drain for five minutes. Flush timer on screen #72
counts down time remaining in the flush phase.
7. After five minutes, alarm buzzer sounds and display advances to screen #73.
Instructions on how to restart the generator are listed on screen #73.
8. Close the generator drain valve.
9. Press
CONTINUE
on screen #73. Generator automatically fills to the proper
level and starts to heat. Display screen advances to the Main Menu
screen (#1). Allow 10 minutes warm-up time once generator starts to fill.
10. Close front cabinet panel.
NOTE: The generator must be flushed every day before use.
7 3
FLUSHING OF GENERATOR COMPLETE
TO RESTART GENERATOR:
1 . CLOSE GENERATOR MANUAL DRAIN VALVE.
2 . PRESS CONTINUE TO START THE
GENERATOR AND ADVANCE TO
THE MAIN MENU.
Table 3-2. Required Feed Water Quality for
Carbon Steel Steam Generators
Nominal
Maximum
Condition
Conditions
Conditions
Temperature
as supplied
140° F (60° C)
Total Hardness as CaCO
3
*
0-17 mg/L
130 mg/L
Total Dissolved Solids
50-150 mg/L
250 mg/L
Total Alkalinity as CaCO
3
50-100 mg/L
180 mg/L
pH
6.8-7.5
6.5-8.5
Total Silica
0.1-1.0 mg/L
2.5 mg/L
Resistivity - ohms/cm
2000-6000
26000
WARNING - BURN HAZARD:
Sterilizer operator may be
severely burned by scald-
ing water if the water level
control malfunctions. The
steam generator level control
may malfunction if the supply
water exceeds 26,000 ohms/
cm (38.5 Micromhos conduc-
tivity min.). Do not connect to
treated water (e.g., distilled,
reverse osmosis, deionized)
unless water resistivity is de-
termined to be acceptable. If
water exceeds 26,000 ohms/
cm, contact STERIS for in-
formation concerning modi-
fications required to the gen-
erator control system.
