3–5
load to the HC-150, and this can overload the unit. For recommendations, consult
the Service Operations Department at Munters.
3.3 CONNECTING THE DUCTWORK
1.
Don’t try to operate the unit without ductwork. The unit will not be damaged, but it
will not operate correctly without the proper ductwork in place. Figures 3–1, 3–2 and
3–3 show some correct installations. Before you install the ductwork, remove the
finger guards from the duct openings.
2.
Here are details on the duct connections:
Process intake .......................... If no ducting – allow 7" clearance.
An optional fitting is available for 5" round ductwork.
Process outlet ........................... Connection to 5" round ductwork.
Add damper downstream of outlet.
Reactivation intake.................... If no ducting – allow 7" clearance.
An optional fitting for 4" round ductwork is provided.
Reactivation outlet .................... Connection to 4" round ductwork.
Add damper downstream of outlet.
3.
Always install dampers downstream of the outlets for the process and reactivation
air streams. The dampers provided are 5" diameter for the process air stream, and
4" diameter for the reactivation air. The dampers are very important for correct
operation of the unit.
4.
The ductwork for the reactivation air outlet should always be insulated. This will
reduce condensation of the moisture in this air stream. Run the reactivation
ductwork so that it slopes away from the dehumidifier. This way any condensed
moisture will run away from the dehumidifier. On this type of installation, the unit
should be installed at least 3 feet above the floor to allow for the slope in the
ductwork.
If it is not possible to do this, include a vertical section in the ductwork, connected to
the unit via a Tee fitting. Any moisture will collect in the part of the ductwork below
the Tee connection. Install a “P” trap to allow a way of draining the moisture.
3.4 ELECTRICAL CONNECTIONS
Electrical connections should only be made by a licensed electrician.
Check all electrical connections for tightness after 60 days of operation.
1.
The HC-150R is designed to operate on 115V AC single-phase current. The HC-
150I uses single-phase 208-240V AC. The customer must provide a disconnect
switch on the AC line.
2.
The entrance point for the AC wiring is shown in Fig. 1–4. Open the front cover of
the unit so you can make the connections. Make the AC connections to the “line”
Summary of Contents for DEW-150
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