ENVISION SERIES AIR HANDLER INSTALLATION MANUAL
Unit Start Up
•Check that supply voltage matches nameplate data.
•Fuses, breakers and wire size are correct.
•Low voltage wiring is complete.
•Piping is complete and water system is cleaned and flushed.
•Air is purged from the closed loop system.
•Isolation valves are open, water control valves or pumps are wired.
•Condensate line is open and correctly pitched.
•Transformer switched to 208v if applicable.
•DIP switches are set correctly.
•Blower rotates freely.
•Blower speed is correct.
•Air filter/cleaner is clean and in position.
•Service/access panels are in place.
•Return air temperature is between
•Check air coil cleanliness to insure optimum performance. Clean as needed according to maintenance guidelines. To obtain maximum performance the air coil should be cleaned before startup. A 10 percent solution of dishwasher detergent and water is recommended for both sides of coil. A thorough water rinse should follow.
Maintenance Filters
Filters must be clean to obtain maximum performance. They should be inspected monthly under normal operating conditions and be replaced when necessary. Units should never be operated without a filter. Always replace the filter with the same type as originally furnished.
Condensate Drain
In areas where airborne bacteria produce slime in the drain pan, it may be necessary to treat chemically to minimize the problem. The condensate drain can pick up lint and dirt, especially with dirty filters.
Blower Motors
The ECM motor is equipped with sealed ball bearings and requires no periodic lubrication.
Air Coil
The air coil must be cleaned to obtain maximum perfor- mance. Check once a year under normal operating condi- tions and, if dirty, brush or vacuum clean. Care must be taken not to damage the aluminum fins while cleaning.
Caution: Fin edges are sharp.
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