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OMM-0153_E
• 5/11/2023 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 56 of 124
CENTURION Installation, Operation & Maintenance Manual
SECTION 6: SAFETY DEVICE TESTING
Figure 6-4: HIGH Gas Pressure Test Components
6.4 Low Water Level Fault Test
1.
Set the Controller’s
Enable/Disable
switch to
Disable
.
2. Close the water shut-off valves in the supply and return piping to the unit.
3.
Slowly open the drain valve on the rear of the unit. If necessary, the unit’s relief valve
may be opened to aid in draining.
4. Continue draining the unit until a
Low Water Level
fault message is displayed and the
FAULT indicator flashes.
5. Go to
Main Menu
→
Diagnostics
→
Manual Run
and enable
Manual Mode
.
6. Raise the valve position
above 30%
using the
+
(Plus) and
–
(Minus) controls.
7.
Set the Controller’s
Enable/Disable
switch to
Enable
. The
READY
light should remain
off and the unit should not start. If the unit does start, shut the unit off immediately and
refer fault to qualified service personnel.
8. Close the drain and pressure relief valve used in draining the unit.
9. Open the water shut-off valve in the return piping to the unit.
10. Open the water supply shut-off valve to the unit to refill.
11. After shell is full press
LOW WATER LEVEL
– RESET
to reset the low water cutoff.
12. Press
CLEAR
to reset the
FAULT
LED and clear the displayed error message.
13. Set the
Enable/Disable
switch to
Enable
. The unit is now ready for operation.