Installation Procedure - Panasonic U-16GE3E5 Verfahren Und Technische Punkte Für Die Installation Der Anlage

 Slope the drain pipe at a gradient of 1/50 or more, and do not taper the pipe diameter (Fig. 12, 13). In
addition, do not create any traps or peaks in the pipe.
 If connecting multiple outdoor units to a single exhaust drain pipe, be sure to prevent exhaust gases from
flowing backward by allowing the gases to discharge into open air where the drain hose enters the drain
pipe (with the drain pipe opening at least 60.5 mm in nominal diameter). Exhaust gases flowing back into the
outdoor units while they are stopped may result in starting failures, engine stalls, corrosion of the unit, and
other problems. In addition, take measures to prevent drain water from splattering in locations where wind is
strong.
 In cold regions where the exhaust drain pipe is likely to freeze, wrap heat tape or take other measures to
prevent freezing.
 Use PVC or stainless steel tubing for the exhaust drain pipe.
 As condensed water drips from the unit, be sure to install it in a location with good drainage. (Tubing for
the condensate drain port (Fig. 10) is not necessary, but follow the above precautions if tubing is installed.)
* Condensed water from the refrigerant tubing inside the unit is released through the condensate drain
port. Condensed water from the heat exchanger and water that gets inside the unit is released through
the drainage ports located at the center of either side panel.
Route the tubing so that the exhaust gas from the drain hose does not enter any windows or ventilation
ports of the building.
Downward slope of
1/50 or more
Fig. 12 Draining the exhaust into a
drainage basin

3. INSTALLATION PROCEDURE

3-1. Anchoring the outdoor unit
Transporting the outdoor unit by hoist:
 For hoisting, pass the rope over the hoisting
brackets on the unit vase at 4 locations. (Fig. 14)
 Insert wood separators as protective shielding
when using the hoist to prevent the outer casing
from being scratched or deformed by the rope.
Be sure not to touch or apply pressure on tube
connectors. (Fig. 14)
 When hoisting with a crane, the crane hook
position must be 1 m or more above the unit.
3-2. Preparing and installing the tubing
 Material: Phosphorous deoxidized copper seamless tubing (C1220T)
 Tubing size: Choose tubing sizes according to tables 1-3, 1-4, 1-6, and 2-3 to 2-5.
Use tube with thickness as per Table 4.
Exhaust
drain pipe
Drainage
basin
Exhaust drain hose
Open to air
(opening at least
60.5 mm in nominal
diameter)
• Do not lay the outdoor unit on its side during transportation.
This can damage the devices and result in malfunction.
Downward slope of
1/50 or more
Fig. 13 Draining the exhaust into a
water drain (roof)
Over 1 m
Tube connectors
EN - 14
Exhaust drain
pipe
Exhaust drain hose
Open to air
(opening at least
60.5 mm in nominal
diameter)
Rope
Wood shielding
Rear view
Side view
Fig. 14
Water
drain