Installation
Connection of duct network
1)Downflow discharge units (TKD,WKD,YKD)
Using the rooftop curb
•The rooftop curb must be insulated on the outside walls at the discharge and intake openings to prevent condensation in the ducts.
•The rims around the discharge and intake openings make it possible to attach the flanges on the ends of the ducts. If you are using rigid duct ends recommended on the rooftop curb plan, it is essential to fix these components before installing the unit.
•For the design of the duct network, comply with recommendations currently applicable on the market, in particular:
. Installation of a section of flexible ducts to limit transmission of the unit's vibrations
. Use of movable vanes or deflectors to reduce the sound level.
2)Horizontal discharge units (TKH,WKH,YKH)
• The intake and discharge ducts must be insulated (thermal insulation).
• The duct section located outside must be
• Provide a flexible connector to prevent transmission of the unit vibrations. This flexible duct must be installed inside the building.
Note: In case of use of TKH, WKH or YKH units with economizer option, temperature and humidity sensors must be installed in return duct.
Economizer linkage is factory mounted but the damper position must be adjusted on site.
Figure 6 - Condensate Drain location
1 = Condensate drain connection
A = TKH/YKH 155, 175, 200, 250 - WKH 125,155, 200 B = TKD/YKD 155, 175, 200, 250 - WKD 125,155,200
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