Water Connections - Carrier 42CN Installation, Operation And Maintenance Instructions

 Drill four holes for the screw anchors close to the four side hooks.
 Hook the unit on the screw anchors in the ceiling with  10 screw.
 Adjust the screws to make certain the fan coil is horizontally leveled.
 Make electrical and water connections.
Condensate drain
Coil surface condensation formed during the cooling cycle is collected in a pan purposely
placed under the coil and then drained out through a drain pipe fitted on the coil
connection side. A simple flexible tube which fits  19 mm is recommended.
To facilitate correct condensate draining, make sure that the drain pipe is not bent or
restricted and that it has the required slope (at least 2%) along its length.
Checking
Before unit operation verify that the water flows into the internal condensate drain pan by
pouring some water into it.
If problems are detected, check the drain pipe slope and look for possible obstructions.

Water connections

If the unit coil is supplied with left water connection, however field conversion of the
connections is achieved quite simply as follows (Fig 1):
 Unscrew the fan deck assembly;
 Unscrew the cover pan, rotate it horizontally through 180;
 Remove the angle iron to the other hand of the coil.
 Assembled the fan deck on the other hand of the coil.
 Position the control box panel opposite the coil connections.
（Fig 1）
NOTE:
 All the connection pipes must be insulated with a condensation-proof material such as
polyurethane, propylene or neoprene of 5 to 10 mm thickness.
 Before start-up, blow off all the air in coil through the air vent valve (Fig 2). The air in tube
will result the reduction of the capacity and the abnormal noise in the coil.
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