Drill Wall Hole For Connective Piping; Connect Drain Hose - EAS Electric EFMV2 Series Instruction Manual

Step 3:

Drill wall hole for connective piping

1. Determine the location of the wall hole
based on the location of the outdoor unit.
2. Using a 65mm (2.5in) or 90mm (3.54in)
(depending on models) core drill, drill a
hole in the wall. Make sure that the hole is
drilled at a slight downward angle, so
that the outdoor end of the hole is lower
than the indoor end by about 12mm
(0.5in). This will ensure proper water
drainage.
3. Place the protective wall cuff in the hole.
This protects the edges of the hole and
will help seal it when you finish the
installation process.
CAUTION
When drilling the
wall hole, make
sure to avoid wires,
plumbing, and
other sensitive
components.
Step 4:

Connect drain hose

The drainpipe is used to drain water
away from the unit. Improper installation
may cause unit and property damage.
CAUTION
 Insulate all piping to prevent condensa-
tion, which could lead to water damage.
If the drainpipe is bent or installed in-

correctly, water may leak and cause a
water-level switch malfunction.
 In HEAT mode, the outdoor unit will dis-
charge water. Ensure that the drain hose
is placed in an appropriate area to avoid
water damage and slippage.
DO NOT pull the drainpipe forcefully.

This could disconnect it.
NOTE ON PURCHASING PIPES
Installation requires a polyethylene
tube (exterior diameter = 3.7-3.9cm,
interior diameter = 3.2cm), which can
be obtained at your local hardware
store or dealer.
Wall
Indoor
Outdoor
≈ 12mm
/ 0.5 inch
Indoor Drainpipe Installation
Install the drainpipe as illustrated in the
following Figure.
Cover the drainpipe with heat insulation
1.
to prevent condensation and leakage.
Attach the mouth of the drain hose to the
2.
unit's outlet pipe. Sheath the mouth of the
hose and clip it firmly with a pipe clasp.
Drain hose
Pipe clasp
Drainpipe
connecting port
NOTE ON DRAINPIPE INSTALLATION
When using an extended drainpipe,

tighten the indoor connection with an
additional protection tube to prevent it
from pulling loose.
 The drainpipe should slope downward at
a gradient of at least 1/100 to prevent
water from flowing back into the air
conditioner.
 To prevent the pipe from sagging, space
hanging wires every 1-1.5m (39-59").
 Incorrect installation could cause water
to flow back into the unit and flood.
NOTE: When connecting multiple
drainpipes, install the pipes as
illustrated in the following Figure.
≥10cm/
(4")
3. Pass the drain hose through the wall
hole. Make sure the water drains to a
safe location where it will not cause
water damage or a slipping hazard.
NOTE: The drainpipe outlet should be at least
5cm (1.9") above the ground. If it touches the
ground, the unit may become blocked and
malfunction. If you discharge the water direct-
ly into a sewer, make sure that the drain has a
U or S pipe to catch odors that might other-
wise come back into the house.
23
1-1.5m
(39-59
")
Downward slope
1/100
Insulation
V.1