Optional Item Installation; Condensate Float Switch - Johnson Controls TCSC Series Installation Operation & Maintenance

Optional Item Installation

Condensate Float Switch Installation (For
Use With Drain Pan - With Drain Hose Con-
nection)
Ensure float switch assembly is firmly secured to
the bracket. Ensure top of float is below rim of pan.
Switch will trip when the water level reaches a point
even with top of float when float is in down position.
Sensitivity may be adjusted by threading switch as-
sembly downward out of bracket if necessary.
Test switch by measuring continuity between wires
when the float switch is down (in its resting position).
Continue measuring for continuity between wires
while lifting the floating switch and observing an open
circuit (loss of continuity). Test switch sensitivity by
filling pan and confirm switch stops unit before pan
overflows.
Drain pan float switch installed
Installation Instructions
1. Disconnect power to unit at main panel.
2. Clip switch bracket onto side of pan at low end
and press firmly into place ensuring switch wires are
positioned up ensure float moves freely.
3. Secure bracket into side of pan using self-tapping
sheet metal screw through upper hole in bracket.
4. Ensure float switch assembly is firmly secured
to bracket. Ensure top of float is below rim of pan.
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Switch will trip when water level reaches a point even
with top of float (when float is in down position). Sen-
sitivity may be adjusted by threading switch assembly
downward out of bracket if necessary.
5. Ensure wiring matches the wiring diagram provided
with the unit.
6. Test switch by measuring continuity between wires
when the float switch is down (in its resting position).
Continue measuring for continuity between wires
while lifting the floating switch and observing an open
circuit (loss of continuity).
7. Test switch sensitivity. Fill pan and confirm that
switch stops unit before pan overflows.
8. Place warning sticker on air handler or condenser
unit.
Drain pan float switch diagram
FORM 130.13-NOM8 (1021)
JOHNSON CONTROLS