Mitsubishi Electric TRANE HVAC US NTXCKS A112 Serie Manual De Instalación página 20

10. Installing the grille
22-11/16 to 24-1/32
Fig. 10-2
B
A
1
1
C
Fig. 10-3
C
B
Fig. 10-4
<Hook is in the raised position>
Fig. 10-5
B
A
C
G
C
Fig. 10-6
19
(inch)
D
D
2
E
A
1
<Grille hook>
Main unit hook
D
A
E
D
Fig. 10-7
10.2. Preparing to attach the grille (Fig. 10-2)
• With the gauge supplied with this kit, adjust and check the positioning of the unit
relative to the ceiling. If the unit is not properly positioned in the ceiling, there may
be air leaks, condensation may form, or the up/down vanes may not operate cor-
rectly.
• Make sure that the opening in the ceiling is within the following tolerances:
576  576 to 610  610 (mm), 22-11/16  22-11/16 to 24-1/32 24-1/32 (inch)
• Make sure that step A is performed within 37 to 42 mm (1-15/32 to 1-21/32 inch).
Damage could result by failing to adhere to this range.
A Main unit
B Ceiling
C Gauge (Accessory)
D Ceiling opening dimensions
10.2.1. Removing the intake grille (Fig. 10-3)
• Slide the levers in the direction indicated by the arrow 1 to open the intake grille.
• Unlatch the hook that secures the grille.
* Do not unlatch the hook for the intake grille.
• With the intake grille in the "open" position, remove the hinge of the intake grille
from the grille as indicated by the arrow 2.
A Intake grille
B Grille
C Intake grille levers
D Grille hook
E Hole for the grille's hook
10.2.2. Removing the corner panel (Fig. 10-4)
• Loosen the screw from the corner of the corner panel. Slide the corner panel as
indicated by the arrow 1 to remove the corner panel.
A Grille
B Corner panel
C Screw
10.3. Installing the grille
• Please pay attention because there is a restriction in the attachment position of the
grille.
10.3.1. Temporarily installing the grille
• Align the screw holes in the corners of the grille with the screw mounting holes in
the corners of the main unit, latch the two hooks on the grille onto the drain pan
projections on the main unit, and temporarily hang the grille. (Fig. 10-5)
Caution:
When installing the i-See sensor and signal receiver, place the junction wires
in the connector box before temporarily hanging the grille.
Refer to 7.1.3. on page 10 to route the junction wires.
10.3.2. Securing the grille
• Secure the grille by tightening the four screws. (Fig. 10-6)
* Make sure that there are no gaps between the main unit and the panel or the panel
and the ceiling. (Fig. 10-7)
A Main unit
B Electric component box
C Screw with washer (Accessory)
D Grille
E Ceiling
F Make sure that there are no gaps.
G Temporarily hanging hooks on the panel
Caution:
• When tightening the screw with captive washer C, tighten it at a torque of 4.8
F
N·m (4 ft·lbs) or less. Never use an impact screwdriver.
It may result in parts damage.
• After tightening the screw, confi rm that the two grille hooks (Fig. 10-5) are
latched onto the hooks on the main unit.