PEX Installation Manual

45
IM-PF 724596 0416
Maintain a minimum 12" of vertical and 6" of
horizontal clearance from recessed lights and
appliance or heater vents.
6" minimum
12" minimum
15.8 Heaters, flues, vents and recessed lights
Keep ViegaPEX Ultra tubing a MINIMUM of 12"
vertically and 6" horizontally from sources of high
heat such as gas ue vents, heating appliances or
electric motors. Concerning recessed lighting (including
low-voltage types) and proper installation clearance,
Viega recognizes the following types of lighting xtures:
Type IC or Inherently Protected, which allow direct
contact with thermal insulation and other combustible
materials, and Type Non-IC, which require a minimum
clearance of 3" to thermal insulation. If room does not
allow for the minimum clearance spacing specied by
Viega, then the PEX tubing must be insulated with a
suitable pipe insulation capable of withstanding the
specic maximum temperatures generated by the
xture. Minimum clearance between any pipe insulation
and xture shall be per the requirements of the xture
type and local building codes.
Forced air heating ducts and PVC power vent ues
are not generally considered sources of high heat.
These areas of installation should be rechecked after
further construction and other mechanical systems
have been installed.
In cases where light leakage (direct beam) from a
UV-generating light source (special lighting or heating-
type lamps) is possible, tubing must be adequately
protected with light-blocking insulation.