CSZ NORM-O-TEP 111Z, Руководство по эксплуатации и техническому обслуживанию

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Operation / Technical Manual NORM-O-TEMP, Model 111Z
Page 57 of 81
Power Interrupt Test
A. Leaving the power switch on, disconnect the power cord from its source. The
audible and visual alarm must indicate for at least 10 minutes.
6-10. Hi-Limit Test
A. Raise the top of the unit and move both jumpers on the power supply board to
the
Test
position. Loosely replace the top.
B. Turn the unit on.
C. Observe WATER display window and HI TEMP LED.
D. The primary high limit is at 43.5°C ± 0.6°C (110.0°F ±1.08°F). Once that
temperature is reached, the HI-TEMP LED will flash, and there will be an audible
alarm.
E. Press the SILENCE ALARM button to silence the primary high limit alarm. The
unit will continue heating water and the HI-TEMP LED will continue to flash.
F. The secondary high limit is at 44.5°C ± 0.6°C (112.0°F ±1.08°F). Once that
temperature is reached, the HI-TEMP LED will illuminate fully and there will be
an audible alarm.
G. Press the SILENCE ALARM button to silence the secondary high limit alarm. The
unit will continue heating water and the HI-TEMP LED will remain lit.
H. The independent mechanical high limit is at 46.0°C ± 0.6°C (115.0°F ±1.08°F).
Once that temperature is reached, there will be an audible alarm and the control
will shut off power to the heater and the pump.
I. If all the high limit alarms occurred correctly, the unit has passed the high limit
test.
J. Turn the unit OFF and unplug from the power source. Move both jumpers back
to the
Normal
position on the power supply board.
NOTE:
The unit must be disconnected from any power source before moving the
jumpers.
K. After the water has been allowed to cool below 42°C, verify that the jumpers are
in the correct position by turning the unit on and allowing it to heat to 42°C. The
heater should turn off once the unit has reached a set point of 42°C.