44
CLCH-SVX03C-EN
Component Installation Requirements
5. Repeat steps 3 and 4 for the remaining zones.
6. Attach the damper operator drive rod to one blade axle in each zone with the two-deck damper.
7.
Use the self-drilling screws provided to mount the bearing bracket assembly (see
Figure 39
).
Note:
The drive rod kits ship in a separate box, found in the fan module or the cold deck of the
multizone module.
Duct Connections
All duct connections to M-Series air handlers should be installed in accordance with the standards
of the National Fire Protection Association (NFPA):
•
NFPA 90A for installing air conditioning and ventilating systems other than residence type
•
NFPA 90B for residence-type warm air heating and air-conditioning systems
Fan Discharge Connections
To ensure the highest fan efficiency, duct turns and transitions must be made carefully, minimizing
air friction losses and turbulence. Proper ductwork installation, as outlined by such organizations
as SMACNA (Sheet Metal and Air Conditioning Contractors National Association, Inc.), should be
followed closely.
The fan module has a one inch flange on the discharge that can be used to attach the duct. When
using lined ducts, the insulation should not obstruct the discharge opening.
Figure 39. Setting the zone damper rods and damper linkage
Damper
blades
Damper
linkage bar
Damper
lever
Bearing
bracket assembly
Drive
rod
Clip
CL0312
SHF1709
BRK1756
Complete Kit DMP0670