Bard WPV48D, Руководство по установке

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Manual 2100-250
Page 3
FILTER
This unit must not be operated without a filter. It comes equipped with a disposable filter which should be
checked often and replaced if dirty. Insufficient air flow due to undersized duct systems or dirty filters can
result in nuisance tripping of the high or low pressure control. Refer to Table 1 for correct air flow and static
pressure requirements. See Figure 1.
FIGURE 1
FILTER REMOVAL
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CONDENSATE DRAIN
Determine where the drain line will run. This drain line contains cold water and must be insulated to avoid
droplets of water from condensing on the pipe and dropping on finished floors or the ceiling under the unit. A
trap MUST BE installed in the drain line and the trap filled with water prior to start up. The use of plugged tees
in place of elbows to facilitate cleaning is highly recommended.
Drain lines must be installed according to local plumbing codes. It is not recommended that any condensate
drain line be connected to a sewer main. The drain line enters the unit through the water access panel, see
Figure 2, and connects to the FPT coupling under the condensate drain pan.
PIPING ACCESS TO THE UNIT
Water piping to and from the unit enters the unit casing through the water access panel. Piping connections
are made directly to the heat exchanger coil and are 3/4" or 1" FPT. The access panel can be installed on the
front of the unit (as received) or on the right side of the unit. It is highly recommended that the piping from the
water coil to the outside of the casing be installed while the unit is completely accessible and before it is finally
set in position. Two 1 3/4" inch plastic bushings are provided (packed with unit installation instructions) to
protect piping from sheet metal edges of access panel. See Figure 2.
FIGURE 2
PIPING ACCESS TO UNIT
Install 1.750 snap busing
(2 supplied, packed with
installation instructions)
into opening prior to
installation piping.
MIS-381
Remove desired knockout
for piping unit