Webasto BlueCool Classic Series
INSTALLATION
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INSTALLATION
4.1
Installation and Positioning of BlueCool Classic unit
Location:
BlueCool Classic units are designed to be installed in any convenient location. The unit is
normally placed in the living areas. The unit will produce condensation so a drain line from the drain
pan is needed in these installations. The space around the unit can be insulated to reduce noise if
desired. The unit is internally cooled and does not require additional ventilation. The location selected
should provide for access to refrigerant, seawater, and electrical connections and be accessible for
service. It should be installed on a flat, horizontal surface away from direct spray from engine air
intakes or water wash-down.
Location checklist
• Adequate space for access to refrigerant, seawater and electrical connections.
• Accessible for service and maintenance.
• Flat, horizontal surface.
• Away from direct spray from engine air intakes or water wash-down.
• Don’t place a return air grille directly opposite the finned coil surface of an evaporator.
See
4.3: "Air Ducting - Ventilation"
, section “5) Return Grill Offset”.
Mounting the Classic unit:
Orient the unit so the refrigerant, electrical connections and service ports
are accessible. Use “L” brackets to bolt the unit down. Fasten the mounting base pan securely in such
a way that the unit can be removed for future service if need be.
Do not remove any covers, caps or fittings that may expose any wiring or refrigerant. Only remove
these items when you are ready to complete the installation or for service purposes. Removal of any
covers may result in damage to the electrical components. Removal of the caps or fittings may result in
refrigerant loss.
4.2
Installation and Positioning of Seawater Pump
1) Seawater cooling:
The seawater system shall consist of a scoop-type thru-hull fitting, water shut-
off valve or seacock, strainer, seawater pump, water hose and overboard discharge fitting.
Water shut-off valve at thru-hull fitting is for safety and maintenance.
If more than one Classic unit is using a single seawater pump, a water manifold and pump relay are
also needed.
Install the pump/strainer assembly in such a manner that a natural gentle upwards slope exists from
the sea-cock to the pump itself. See Figure 4.
Make sure that pump/strainer are accessible for service and maintenance.
ATTENTION
It is strongly recommended to install air-bleeder systems both in the suction line as well as immediately after
the discharge outlet of the pump. The advice is especially valid for pumps WB250/350/500/1000.
The WB1500/2000 pumps generally will not require a bleeder system to ensure proper operation.
It is strongly recommended to install a water scoop at the entry of the sea-cock and directed towards the bow
of the boat so that at speed positive pressure builds up in the supply line to the seawater pump.
