Y8611 Rev. E
Run a drain line from the evaporator coil drain to the
pump. Use the flexible plastic pipe where the code
permits. Insert the pipe 1” below the pump cover. Do not
install inlet drain line that would interfere with operation
of floats. Connect outlet tubing (copper or vinyl) to
discharge on pump. Do not run tubing vertical more than
is recommended by the lift on each unit. For good flow,
slant the horizontal run downward toward the drain.
Each CB25 comes standard with a check valve for
connecting to 3/8” O.D. copper tubing. Each CB50 unit
comes standard with a check valve for connecting to ½”
O.D. copper tubing. A copper tube adapter is included
for vinyl hose hook-up.
PIPING
WIRING
LIMITED WARRANTY
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The wiring must comply with local codes.
WARNING
Turn the electric power off at the fuse box before making any line voltage connections.
MAINTENANCE AND TROUBLE SHOOTING
1.
Remove dirt that may collect in bottom sump.
2.
Look at vinyl DISCHARGE LINE to see that it is open and water can pass through freely.
3.
Always replace cover to keep electrical parts clear of dust and grime.
4.
See item 7 of Introduction.
To test safety float switch, temporarily stop flow of discharge line by sharply bending vinyl tubing. Pour more water into pump
inlet. Water level will rise beyond high level of control float until safety float switch breaks the “Y” thermostat circuit shutting down
air conditioner condensing unit. Unbend the tube and the pump will empty the entire sump. Replace inlet line into pump inlet.
WIRING
DIAGRAM
FOR CB25
AND CB50.
Designated
Pump Lift
Copper Tube
Nut
Check Valve
Snap Ring
Ball-Cage
Vinyl Hose
Evaporator
(“A” Coil)
Pump
Micro Switch
Safety Micro Switch
Green Ground
Conn.
Terminal
Block
Voltage as
shown on
Name Plate
Attach to
“Y” on Relay
“Y” on Thermostat
NEC. Class 2
(Low Voltage)
Pump
Black
White
Green
Inner Ring
Ball
Adapter
