Daikin VAM-GVJU, Manual

Page: 20 / 52

EDUS711116 Installation Manual
VAM-GVJU 19
3P034928-7Q
English 4
(4)Install the suspension bolts.
(Use 1/2”UNC suspension bolts.)
Use a hole-in-anchor, sunken insert, sunken anchor for
existing ceilings, or other part to be procured in the field to
reinforce the ceiling to bearing the weight of the unit.
5. THE METHOD OF INSTALLATION
〈〈
As for the parts to be used for installation work, be sure
to use the provided accessories and specified parts desig-
nated by Daikin.
〉〉
• Example of Installation, VAM300GVJU (See figure 2),
VAM470GVJU, VAM600GVJU (See figure 3),
VAM1200GVJU (See figure 4)
1. Air suction/discharge grille (field supply)
2. Inspection hatch (
à
18 in.) (field supply)
3. Service space for the heat exchanger cores, air filters, con-
trol box and fans
4. Duct (field supply)
5. Duct (field supply) or flexible duct (field supply)
6. Branch duct (field supply) (only for
VAM470GVJU~1200GVJU)
7. Flexible duct (field supply)
8. Silencer (field supply)
9. EA (Exhaust air to outside)
10. Thermal insulation (field supply)
11. OA (Outdoor air from outside)
12. Suspension bracket for absorbing vibration (field supply)
13. Suspension bolt (field supply)
14. Gradient of down to outside
≥
1/30
15. SA (Supply air to inside)
16. RA (Return air from inside)
17. Round hood (field supply)
18. Suspension bolt position
<Cautions on installing the ducts>
• When using the unit at a quiet place, use a silencer (field
supply) and flexible duct (field supply) at the part of the air
discharge outlet on the indoor side “SA” (supply air to
inside) of the unit to counter the noise.
• When selecting installation materials, consider the required
volume of airflow and noise level in that particular installation.
• When the outdoor air infiltrates into the ceiling and the tem-
perature and humidity in the ceiling become high, insulate
the metal portions of the unit.
(1)Attach duct connecting flange
<VAM300GVJU>
Attach the 4 included duct connecting flanges using the
included screws.
Match the symbol on the duct joints (the triangle
on the
flange) to the position marking on the unit when attaching.
<VAM470GVJU, VAM600GVJU, VAM1200GVJU>
Attach the 4 included duct joints using the included screws.
1. Screw
2. Duct joint symbol
3. Duct connecting flange
4. Unit position marking
(2)Installing the unit
Pass hanger bracket over the bolts and secure with commer-
cially available washers and nuts.
(When installing the unit, make sure there are no foreign
objects (plastic, paper, etc.) inside the fan housing by looking
inside through the duct hole before connecting the duct.)
• When reversing the hanger brackets in order to install the
unit upside down, be sure to secure them with the original
screws.
• Attach the indoor (SA, RA) and outdoor (EA, OA) ducts by
referring to figure 2 to 4.
<VAM300GVJU, VAM470GVJU, VAM600GVJU>
Note: All the above parts are field supply.
Suspension bolt
Long nut or turn-buckle
Anchor bolt
Unit
Ceiling slab
Model Number of screws
VAM300GVJU 16
VAM470GVJU 24
VAM600GVJU 24
VAM1200GVJU 24
1
2
4
3
3
3
3
1
[In case of VAM1200GVJU]
1
2
3
4