1. Insulated resistance
The insulated resistance must be more
than 2M .
2. Grounding work
4.1 - INSTALLATION DIAGRAM
After nishing grounding work, measure
Perform the electrical safety check after completing installation. Cover the following areas:
the grounding resistance by visual detection
1. Insulated resistance The insulated resistance must be more than 2MΩ.
and using the grounding resistance tester.
2. Grounding work
Make sure the grounding resistance is less
After finishing grounding work, measure the grounding resistance by visual detection and using the
than 4 .
grounding resistance tester.
Make sure the grounding resistance is less than 4Ω.
3. Electrical leakage check (performing during
3. Electrical leakage check (performing during test while unit is on)
test while unit is on)
During a test operation after completed installation, the use the electroprobe and multimeter to perform
During a test operation after completed
an electrical leakage check. Turn off the unit immediately if leakage happens. Try and evaluate different
installation, the use the electroprobe and
solutions until the unit operates properly.
multimeter to perform an electrical leakage
check. Turn o the unit immediately if
Gas leak check
leakage happens. Try and evaluate di erent
solutions until the unit operates properly.
1. Soap water method:
Apply a soap-water solution or a liquid neutral
detergent on the indoor unit connection or
outdoor unit connections with a soft brush to
check for leakage of the connecting points of
the piping. If bubbles emerge, the pipes are
experiencing leakage.
2. Leak detector
Use the leak detector to check for leakage.
The illustration is for example purposes
only. The actual order of A, B, C, D, and E
on the machine may be slightly different
from the unit you purchased but the gen-
eral shape will remain the same.
A, B,C,D are points for QUADRI type. A, B,C,D, and E are points for the PENTA type.
4.2 - TEST RUN
A test run must be performed after the entire system has been completely installed. Confirm the following points
before performing the test:
a) The indoor and outdoor units are properly installed.
b) Piping and wiring are properly connected.
c) No obstacles near the inlet and outlet of the unit that might cause poor performance or product malfunction.
d) The refrigeration system does not leak.
e) Drainage system is unimpeded and draining to a safe location.
f) The heating insulation is properly installed.
g) The grounding wires are properly connected.
h) Length of the piping and additional refrigerant stow capacity have been recorded.
i) The power voltage is the correct voltage for the air conditioner.
Failure to perform the test run may result in unit damage, property damage or personal injury.
Page 40
1. Open both the liquid and gas stop valves.
2. Turn on the main power switch and allow the unit to warm up.
3. Set the air conditioner to COOL mode.
4. For the Indoor Unit
a. Ensure the remote control and its buttons work properly.
b. Ensure the louvers move properly and can be changed using the remote control.
c. Double check to see if the room temperature is being registered correctly.
d. Ensure the indicators on the remote control and the display panel on the indoor unit work properly.
connection or outdoor unit connections with
a soft brush to check for leakage of the
connecting points of the piping. If bubbles
emerge, the pipes are experiencing leakage.
2. Leak detector
Use the leak detector to check for leakage.
NOTE: The illustration is for example purposes
only. The actual order of A, B, C, D, and E on
the machine may be slightly di erent from the
unit you purchased but the general shape will
remain the same.
Indoor unit
check point
Outdoor unit
check point
A, B,C,D are points for one-four type.
A, B,C,D, and E are points for the one- ve type.
EN - 29
NEXYA S5 E