Owner's manual

VFH InverterFlex
®
- Ceiling Cassette Heat Controller
9. Installation is designed for new or existing ceilings. However, anchoring/mounting to wood, steel, and
concrete must follow all local/national building codes.
10. Mounting hardware for suspension in ceiling must be acquired locally. M10 or 3/8” diameter threaded
rods and nuts are the recommended to ensure a proper fit with the mounting flanges of the unit.
Location Considerations:
The location must take into consideration the size of the indoor unit, ceiling opening, and where the threaded
rods must be located to suspend the unit:
Model
Capacity
Ceiling Opening Dimensions Unit Dimensions Threaded Rod Dimensions
A x A in(mm) B x B in(mm) C1 x C2 in(mm)
12/18K
25.6(650) x 25.6(650)
22.4(570) x 22.4 (570)
15.8(400) x 23.8(604)
24K 35.0(890) x 35.0(890) 33.1(840) x 33.1(840) 26.8(680) x 30.7(780)
12/18K Model Dimensions: 24K Model Dimensions:
Additional considerations:
• Allow at least 6.3in (160mm) clearance from the top of the installation flange of the unit and the top of
the ceiling cassette panel.
• The drop ceiling tile should overlap the edge of the ceiling cassette panel by at least 0.8in (20mm).
4
A
B
C1
AC2B
A
C2
B
A
B
C1
0.8in.(20mm)
6.3 in.
(160mm)