Installation Instructions

Figure 9b
Figure 9a
z If the Half of Cable Marker appears BEFOREtheHalf-of-Area-Linepreviouslymarkedontheoor,therewilllikelybeacableshortage
at the planned end of run, the amount of which depends on how far before the line the marker appears.
z Foracableshortage,considerthelowtrafcareasandBorder Dimension.Cablecanbeconservedbyavoidingplacementinlowtrafc
areas or by increasing the border dimension. The border may be increase to a maximum of 6". To do this, carefully unlace the cable
fromthestrappingandmovethestrappingaway,butnofurtherthan6"fromthewall;thiswillreducecableusage.(Figure 9b). Re-
lace the cable according to the method outlined in Step 6. Do NOT increase cable spacing by more than 3" as this will result in a cold
oor!
z Oncethecablelayoutiscomplete,ensureallcablerunsaresufcientlytighttopreventinterferenceduringmortartrowelling.
z If the “Half of Cable” Marker appears AFTER the Half-of-Heated-Area-Linepreviouslymarkedontheoor,therewilllikelybeacable
surplus at the planned End of Run, the amount of which depends on how far past the line the marker appears.
z Surplus cable may be used up by routing it into Low Trafc Areas. You may also reduce the cable spacing to 1
1
/
2
”betweenadjacentruns,
provided there are not more than 6 consecutive runs at this compressed spacing (Figure 9a). Both methods will help to consume the
surplus cable.
z Oncethecablelayoutiscomplete,ensureallcablerunsaresufcientlytighttopreventinterferenceduringmortartrowelling.
Cable
routed into
low trafc
areas
Cable spacing
compressed
(not more than
6 consecutive
runs)
Border
dimension
increased
to 6" (max
‑
imum)
Cable NOT
routed into
low trafc
areas
2.7
IF “HALF OF CABLE” MARKER
DOES NOT MEET AT “HALF HEATED AREA”