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PMC-E FORCED DRAFT EVAPORATIVE CONDENSERS
Final Assembly and Startup Details
Shipping Materials - Remove any wood chocks, spare parts, or miscellaneous items that have been
placed inside the unit for shipping purposes. Clean all debris from the basin.
Pump Discharge Line - Connect the riser pipe from the pump discharge on the basin and fan section
to the riser pipe on the coil section using the flexible connection and hose clamps provided.
Bleed-off Line - A bleed-off line and valve are installed on the unit when shipped with a pump. On
units shipped without a pump (remote sump applications) make sure a bleed-off line and valve are
properly sized and installed on the discharge side of the pump and connected to a convenient drain.
In either case, the bleed-off valve should be fully open.
Strainer - Remove the strainer and inspect for any debris which may have accumulated below the
suction hood. Reinstall the strainer in the basin to ensure that it is in its proper location over the
pump suction.
Screens - Protective air inlet screens are provided across the front of the fan section of all models.
Screens are not provided on the bottom of the fan section since most of the units are mounted on
steel beams, either on the roof or at ground level. If units are installed in an elevated position, bottom
screens are recommended for safety protection and should be provided by the installing contractor.
Float Valve Adjustment - The float valve is preset at the factory; however, adjustment should be
checked after rigging. At initial startup, the water level should be adjusted so that the center of the
float is 25mm below the center of the overflow connections when the valve is in the fully closed posi-
tion. Raise or lower the float by using the wing nuts on the vertical threaded rod. Do not adjust the
horizontal rod. During normal operation, when the unit is under load, the water level should be ad-
justed so that the operating level is 76mm to 100mm below the overflow.
Fan Rotation - Bump start and check the fans for proper rotation. Directional arrows are placed on
the inside of the axial fan cylinders.
Pump Rotation - After filling the basin to overflow with fresh water, bump start and check the pump
for proper rotation. Directional arrows are found on the pump impeller housing.
Maintenance
Once installation is complete and the unit is turned on, it is important that it be properly maintained.
Maintenance is not difficult or time consuming, but must be done regularly to assure maximum
trouble free performance of the unit. Refer to the Operation and Maintenance Instructions enclosed
with the unit for proper maintenance procedures.
Also, proper freeze protection must be provided if the unit is located in a cold climate. Refer to the
factory supplied Operation and Maintenance Instructions and Checklist, as well as factory product
bulletins for further information.
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