28
3-26. Required Minimum Space for Installation and
Service (224, 280 Types)
●
  This air conditioner is usually installed above the ceiling so 
that the indoor unit and ducts are not visible. Only the air 
intake and air outlet ports are visible from below.
●
  The minimum space for installation and service is shown in 
Fig. 3-71.
●
  It is recommended that space be provided (600 × 600 mm) 
for checking and servicing the electrical system.
●
  Fig. 3-72 shows the detailed dimensions of the indoor unit.
1170 
1100 
55 55 
1200 
1310 
Fig. 3-71
 
479 
300 
100 
2 
100 
100 
42 
1428 
1310 
71 
1100 51 
964 
9s100P=900 
10s100P=1000 
106 
44 
1070 
1310 
67 
67 
113 
(236) 
364 364 
1334 
60 
43 320 
100 
5 0 
178 
23 
209 344 
1222 
41 
Fig. 3-72
Refrigerant tubing joint (liquid tube ø12.7 mm)
Refrigerant tubing joint (gas tube ø28.6 mm)
Power supply outlet
Drain port (O.D. 32 mm)
Duct connection for suction
Duct connection for discharge
28-ø3.5 (Holes all around)
1170 (Suspension bolt pitch)
4 - 37×12 
(Hole for suspension bolt)
26-ø3.5 (Holes all around)
1200 (Suspension bolt pitch)
(Suspension bolt pitch)
Min. 600 
(Space for 
service)
Air suction 
side
Min. 700 
(Space for 
service)
Ceiling face
Min. 610
Min. 130
Drain port
Drain pan
Electrical 
component box
Inspection 
access 
(600 × 600)
Refrigerant 
tubing
Unit: mm
(Suspension bolt pitch)
Unit: mm
Panaindoor336013Eng.indb28Panaindoor336013Eng.indb28 2012/03/2121:07:122012/03/2121:07:12