Comfort-Aire VFH 24 CA - Manual (Page 8)

VFH InverterFlex ® - Ceiling Cassette Heat Controller
6
Line Set Installation
ATTENTION: Refer to the Outdoor unit’s installation manual for all line set sizes and charging information.
Create Opening for Refrigerant and Condensate lines
1. Determine hole position according the unit’s required clearances and which direction the lines will be
routed from your unit.
2. Drill a 2.5”(65mm) hole angled downward (approx. 45°) toward the outdoors, if the line sets are being
routed through a side wall.
WARNING: Ensure that neither studs nor plumbing are located directly behind the proposed opening
location.
3. Always use a conduit to route the piping though the hole in the wall.
4. Properly seal the hole after routing the pipes through to prevent debris, insects, or small animals from
entering.
Line Set Connection
When connecting the line set to the unit, use two wrenches – one to hold the flare connection on the unit and
the other to attach and tighten the flare nut of the line set.
Attention: The 24K indoor unit comes with a connecting pipe to help provide some flexibility between the rigid
connections (unit connection and the line set). This helps prevent the line from being kinked and allows for a
proper bend radius. The connecting pipe has a flare connection to attach to the unit’s refrigerant connector and
a straight piece of copper on the other end, which would need to be flared and brazed in order to connect to the
end of the line set from the outdoor section.