Specifications

AS1S
34
Fig. 3-5
Fig. 3-6
Fig. 3-7
Fig. 3-8
177
For fresh air intake
(ø125 hole) A
140
Nuts and washers
Suspension bolt
Suspension lug
Upper
Lower
Double nuts
Suspension bolts
Tubing side
Suspension bolts
20
20
74
74
37
5
Ceiling
material
If the system requires fresh air to be drawn into the unit,
cut and remove the insulation (both externally and inter-
nally) at the location shown as in Fig. 3-5.
3-2. Placing the Unit Inside the Ceiling
(1) When placing the unit inside the ceiling, determine
the pitch of the suspension bolts.
Tubing must be laid and connected inside the ceil-
ing when suspending the unit. If the ceiling is
already constructed, lay the tubing into position for
connection to the unit before placing the unit
inside the ceiling.
(2) Thread the 3 hexagonal nuts and 2 washers (field
supply) onto each of the the 4 suspension bolts as
shown in Fig. 3-6. Use 1 nut and 1 washer for the
upper side, and 2 nuts and 1 washer for the lower
side, so that the unit will not fall off the suspension
lugs.
(3) The distance between the unit and the opening of
the ceiling and the distance between the bottom
surface of the ceiling and the bottom surface of
the flange of the unit should follow the dimensions
given in Figs. 3-7 and 3-8.
A
When making the cuts to
the insulation, be careful
not to damage the drain
pan.
CAUTION
Unit: mm
Unit: mm
Unit: mm
04-396 Inverter-W_a-p50 ARGO 12/21/04 9:38 AM Page 34