Troubleshooting Condensate Overflow Systems; Figure 33 Indoor Condensate Overflow Switch; Figure 34 Outdoor Condensate Sensor; Figure 35 Outdoor Condensate Control - Bard I30A1DA Installation Instructions Manual

Troubleshooting Condensate Overflow
Systems
The Bard I-TEC Series is equipped with dual
condensate overflow switches. One switch (float type)
is located in the indoor drain pan. It is secured to the
drain pan with a screw-down clamp (see Figure 33).
The second switch (electronic/conductance) is located
in the control panel with the sensor mounted adjacent
to the left outdoor coil in the outdoor drain pan (see
Figure 34).
The float type switch in the indoor drain pan is
equipped with an LED light that indicates when an
overflow condition is present.
Electrically, the two condensate switches are wired in
series with the unit's high pressure switch. All three
switches have normally closed contacts, but if any
of them are activated, it will then activate initially a
soft lockout of the compressor circuit. If recurrence
FIGURE 33
Indoor Condensate Overflow Switch
FIGURE 34
Outdoor Condensate Sensor
happens on the same cooling call cycle, a hard lockout
of the compressor circuit will occur. (See Sequence of
Operation on page 33.)
The electronic switch for the outdoor drain pan has
three LED lights giving a status update (see Figure 35).
To test the electronic overflow switch function, bridge
accross the probes with a wet finger. The unit should
stop, and the RED LED should come on. Remove the
finger from the probe. After approximately 5 seconds,
the RED LED should go off and the GREEN and
AMBER LEDs should come on.
To Reset (Clear AMBER LED):
Bridge across the sensor probes with wet finger until
the RED LED comes on, then remove the bridge
quickly. While the RED LED is still on, bridge the
probes again quickly (within 2 seconds). Hold until
the AMBER LED goes off, then immediately remove the
bridge.
FIGURE 35
Outdoor Condensate Control
RED LED Illuminated:
Overflow currently being detected,
switch activated
GREEN LED Illuminated:
No overflow currently being
detected
AMBER LED Illuminated:
Previous condition detected
Manual 2100-597G
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