Infloor Standard Electric Cable - Manual (Page 4)

4
Infloor Installation Manual
Phase 2: Preparation
Table 2 - Cautions
CAUTION!
As with any electrical product, care should be taken to guard against the poten-
tial risks of fire, electric shock, and injury to persons . The following cautions must
be observed:
NE VER install under carpet, wood, vinyl, or other non-masonry flooring without
embedding it in thin-set, thick-set, or self-leveling mortar .
NE VER install in adhesives or glues intended for vinyl tile or other laminate floor-
ing, or in pre-mix mortars . It must be embedded in polymer-modified, cement
based mortar .
NE VER cut the heating wire . Doing so will cause dangerous overheating and will
void the warranty . The power lead may be cut shorter if necessary, but never
remove completely from the heating wire .
NE VER bang a trowel or other tool on the heating wire . Be careful not to nick, cut,
or pinch the wire causing it to be damaged .
NE VER use nails, staples, or similar to fasten the heating wire to the floor .
NE VER attempt to repair a damaged heating wire, splice, or power lead using
unauthorized parts . Use only factory authorized repair parts and methods .
NE VER splice one heating wire to another heating wire to make it longer .
Multiple power leads must be connected in parallel in a junction box or to the
thermostat .
NE VER install one heating wire on top of another or overlap the heating wire on
itself . This will cause dangerous overheating .
NE VER forget to install the floor sensor included with the thermostat .
NE VER install in any walls, or over walls or partitions that extend to the ceiling .
NE VER install under cabinets or other built-ins having no floor clearance, or in
small closets . Excessive heat will build up in these confined spaces, and the
heating wire can be damaged by fasteners (nails, screws, etc .) used to install
built-ins .
NE VER remove the nameplate label from the power leads . Make sure it is viewable
for inspection later .
NE VER extend the heating wire beyond the room or area in which it originates .
NE VER allow a power lead or sensor wire to cross over or under a heating cable .
Damage could result .
NEVER bang a trowel or other
tool on the heating cable.
NO!
Always completely embed the
factory splice and all heating wire
in mortar. NEVER bend the splice
or place any part of it in the wall
or through the floor.
Example 1. There are
40 sq . ft . of bathroom
area to be warmed with
120 VAC. The cable is to
be spaced at 2-1/2” to
provide 12 watts/sq . ft .,
providing comfortable
warmth across the floor
area . As seen in Table
1, use Model Number
38606 .
Example 2. There are
270 sq . ft . of kitchen and
dining area to be warmed
with 240 VAC. The cable is
to be spaced at 3” to pro-
vide 10 watts/sq . ft ., pro-
viding warmth across the
entire floor area . As seen
in Table 1, choose Model
Numbers 38713 and 38700
to end up with about 264
sq . ft . covered .
120 VAC Spools
Total Sq. ft. Total Sq. ft. Total Sq. ft. Wire
Part 2” Spacing 2-1/2” Spacing 3” Spacing Length Amperage Resistance
Number 15 watts/sq. ft. 12 watts/sq. ft. 10 watts/sq. ft. (ft.) Draw (ohms)
38600 8 10 12 47 1 .0 112–137
38601 12 15 18 71 1 .5 78–96
38602 16 20 24 94 2 .0 58–72
38603 20 25 30 118 2 .5 44–55
38604 24 30 36 141 3 .0 34–42
38605 28 35 42 165 3 .5 29-36
38606 32 40 48 188 4 .0 25-32
38607 36 45 54 212 4 .5 22–28
38608 40 50 60 235 5 .0 20-26
38609 48 60 72 282 6 .0 17-22
38610 56 70 84 329 7 .0 14-19
38611 64 80 96 376 8 .0 12–16
38612 72 90 108 423 9 .0 11-15
38613 80 100 120 470 10 .0 10-13
240 VAC Spools
Total Sq. ft. Total Sq. ft. Total Sq. ft. Wire
Part 2” Spacing 2-1/2” Spacing 3” Spacing Length Amperage Resistance
Number 15 watts/sq. ft. 12 watts/sq. ft. 10 watts/sq. ft. (ft.) Draw (ohms)
38700 16 20 24 94 1 .0 223-274
38701 24 30 36 142 1 .5 155-191
38702 32 40 48 188 2 .0 116-143
38703 40 50 60 236 2 .5 88-109
38704 48 60 72 282 3 .0 68-84
38705 56 70 84 330 3 .5 58-72
38706 64 80 96 376 4 .0 51-63
38707 72 90 108 424 4 .5 45-56
38708 80 100 120 470 5 .0 41-51
38709 96 120 144 564 6 .0 34-42
38710 112 140 168 658 7 .0 29-36
38711 128 160 192 752 8 .0 25-32
38712 144 180 216 846 9 .0 22-28
38713 160 200 240 940 10 .0 20-26
NEVER use 1” spacing
NEVER use less than 2” spacing.
NO!
ALWAYS!
Table 1: (Cable Sizes)