Installation Manual - Operation Test - Viesta VAC-09CH Manual De Instrucciones Y De Instalación

BLEEDING
The air and humidity left inside the refrigerant circulation can cau-
se compressor malfunction. After having connected the indoor
and outdoor units, bleed the air and humidity from the refrigerant
circulation using a vacuum pump.
1. Unscrew and remove the caps from the 2 - way and
3-way valves.
2. Unscrew and remove the cap from the service port.
3. Connect the vacuum pump hose to the service port.
4. Operate the vacuum pump for 10 - 15 minutes until
an absolute vacuum of 10 mm Hg has been reached.
5. With the vacuum pump still in operation, close the
low - pressure knob on the vacuum pump coupling.
Stop the vacuum pump.
6. Open the 2 - way valve by 1/4 turn and then close it
after 10 seconds. Check all the joints for leaks using
liquid soap or an electronic leak device.
7. Turn the body of the 2-way and 3-way valves.
Disconnect the vacuum pump hose.
8. Replace and tighten all the caps on the valves.
1. Wind insulating covering around the joints of the indoor unit
and fix it with insulating tape.
2. Fix the exceeding part of the signal cable to the piping or to
the outdoor unit.
3. Fix the piping to the wall ( after having coated it with insula-
ting tape) using clamps or insert them into plastic slots.
4. Seal the hole in the wall through which the piping is passed
so that no air or water can fill.
INDOOR UNIT TEST
● Do the ON/OFF and FAN operate normally?
● Does the MODE operate normally?
● Do the set point and TIMER function properly?
● Does each lamp light normally?
● Do the flap for air flow direction operate normally?
● Is the condensed water drained regularly?
OUTDOOR UNIT TEST
● Is there any abnormal noise or vibration during
operation?
● Could the noise , the air flow or the condensed water
drainage disturb the neighbours?
● Is there any coolant leakage?
Note: the electronic controller allows the compressor to start only three minutes after voltage has reached the
system.

INSTALLATION MANUAL - OPERATION TEST

EN
3-way valve
diagram
connection
to outdoor unit
valve core
indoor unit
refrigerant flow direction
3-way valve
(7) turn to
fully open the valve
service
port unit
(2) turn
(8) tighten
clamps
(indoor)
26
KEN002VAC
v1• 11.11.2020
connect to
indoor unit
open position
spindle
needle
service port
cap
2-way valve
(6) open 1/4 turn
(7) turn to fully
open the valve
valve cap
(1) turn
(8) tighten
(8) tighten
insulating
covering
insulating
tape
piping
gasket
(outdoor)
wall
(1) turn