Finishing The Job; How To Install The Ceiling Panel; 4-Way Air Discharge Semi-Concealed Type; Before Installing The Ceiling Panel - Technibel CAV250R5TA Série Manuel D'installation

• If the calculated additional refrigerant charge amount cannot be
charged at once, charge the balance refrigerant in a gas condition
by using the wide tube service valve with the system in cooling
operation mode.
When charging R407C throttle the valve of the cilinder in order
to gasifp the liquid refrigerant.

Finishing the job

(1) With a hex wrench, turn the narrow tube service valve stem counter-clockwise to fully open the valve.
EG
(2) Turn the wide tube service valve stem counterclockwise to fully open the valve.
CAUTION
• To avoid gas from leaking when removing the charge hose, make sure the stem of the wide tube is turned all the way
out ("BACK SEAT" position).
(3) Loosen the charge hose connected to the wide tube service port (1 / 4 in) slightly to release the pressure, then remove
the hose.
(4) Replace the 1 / 4 in. flare nut and its bonnet on the wide tube service port and fasten the flare nut securely with an
adjustable wren CH or box wrench. This process is very important to prevent gas from leaking from the system.
(5) Replace the valve caps at both wide and narrow service valves and fasten them securely tight.
This completes air purgiing with a vacuum pump. The air conditioner is now ready to test run.

11. HOW TO INSTALL THE CEILING PANEL

I

4-WAY AIR DISCHARGE SEMI-CONCEALED TYPE

CAUTION

11-1. Before Installing the Ceiling Panel

(1) Remove the air intake grille and air filter from the ceiling
panel.
(Figs. 11-1 and 11-2)
(a) Remove the 2 screws by the latch from the air
intake grille. (Fig. 11-1)
(b) Press on the 2 latches of the air intake grille with
your thumb in the direction of the arrow to open the
grille. (Fig. 11-1)
(c) With the air intake grille open about 45°, remove
the safety string (hook on the grille side).
(Fig. 11-2)
(d) Pull the air intake grille towards you to remove it
from the ceiling panel.
(2) Pull down the two panel catches of indoor unit body.
(Fig. 11-3)
• Never touch or attemp
to move the air direc-
tion louver by hand or
you may damage the
unit. Instead, use the
remote controller if
you want to change
the direction or air
flow.
Outdoor
unit
Max. allowable
Latch
Safety string
43
Wide tube
Indoor
Narrow tube
unit
Required
tubing lenght additional
at shipment charge
50 m
Screw
Air intake grille
Ceiling panel
Fig. 11-1
Air filter
Fig. 11-2