Greenheck ERCH - Energy Recovery Unit with Packaged DX (468151) - Manual (Page 36)

36
Energy Recovery Unit with Packaged DX
ROUTINE MAINTENANCE
Coil Maintenance
Filters
Filters upstream of the coil should be checked regularly . If the filters are dirty, they should be cleaned or
replaced . It is important that the coils stay clean to maintain desired airflow . See Filter Maintenance section for
additional information .
Coil Maintenance
1 . Coils must be cleaned to obtain maximum performance . Check once a year under normal operating
conditions and if dirty, brush or vacuum clean . Soiled fins reduce the capacity of the coil, demand more
energy from the fan, and create an environment for odor and bacteria to grow and spread through the
conditioned zone . High pressure water (700 psi or less) may be used to clean coils with fin thickness over
0 .0095 inches thick . TEST THE SPRAy PRESSURE over a small corner of the coil to determine if the fins will
withstand the spray pressure .
For coils with fragile fins or high fin density, foaming chemical sprays and washes are available . Many coil
cleaners contain harsh chemicals, so they must be used with caution by qualified personnel only . Care must
be taken not to damage the coils, including the fins, while cleaning .
CAUTION: Fin edges are sharp.
**WARNING**
BIOLOGICAL HAZARD. MAY CAUSE DISEASE. CLEANING SHOULD BE PERFORMED BY QUALIFIED PERSONNEL.
2 . Drain pans in any air conditioning unit will have some moisture in them, therefore, algae and other organisms
will grow due to airborne spores and bacteria . Periodic cleaning is necessary to prevent this buildup from
plugging the drain and causing the drain pan to overflow . Inspect twice a year to avoid the possibility
of overflow . Also, drain pans should be kept clean to prevent the spread of disease . Cleaning should be
performed by qualified personnel .
**WARNING**
REFER TO SAFETY WARNING ON COVER
DO NOT OPERATE ENERGY RECOVERY VENTILATOR WITHOUT THE FILTERS AND BIRDSCREENS INSTALLED.
THEY PREVENT THE ENTRY OF FOREIGN OBJECTS SUCH AS LEAVES, BIRDS, ETC.
DO NOT REMOVE ACCESS PANELS OR OTHER UNIT COMPONENTS WHILE STANDING ON A LADDER OR OTHER
UNSTEADY BASE. ACCESS PANELS AND UNIT COMPONENTS ARE HEAVY AND SERIOUS INJURY MAY OCCUR.