Jacuzzi Dome For Shower Surround System None - Manual (Page 12)

4. Installing Jacuzzi Floor Warming Mats
STEP 1 CONFIGURE MAT TO HEATED AREA
1. Consider the location of the ECB, and the routing of the cold lead over to the point where they
will enter the wall cavity.
NOTE: The mat support strands are on top of the mat and the mat mesh is laid directly on the
floor or base layer.
2. The cold leads are slightly larger than the heating cable, and may require that the floor area below
them to be routed out (about 1/8" depth) to ensure that the thickness of the scratch coat is both
uniform and minimized.
3. Confirm that the MAT you have selected is suitable by laying it onto the floor (with the mesh side
on the floor) and fitting it into the area to be heated. Ensure that the cold leads can be routed to
the ECB without the need to configure the mat.
4. If the area to be heated is rectangular and fits the shape of the mat, then it can be installed. See
Figures 4a and b.
5. If the mat must be reconfigured to fit the the area to be heated, proceed as follows:
a. Consider the shape of the area to be heated, revise sketch of planned layout to configure the
mat to the area properly.
b. Determine the point at which the cold lead will enter the wall cavity, and secure the cold lead
using the clips.
c. Cut the mesh and support strands to configure the mat to your plan/floor shape/area as il-
lustrated in the example process in Figures 4c, d and e. ONLY the mesh and support strands
may be cut—DO NOT CUT THE HEATING CABLE!
d. If cold lead length is insufficient to reach ECB, the mesh can be cut to enable heating cable
to be routed along the edge of mat back to connection box. Heating cable should be spaced
3" from parallel runs of heating cable and 2" from perpendicular runs (loops) of the heating
cable, as noted in Figure 4a. These spacings may be reduced to 1 1 /
2
" MINIMUM if space is
restricted. Do not space heating cable further apart than recommended as floor will not
warm to a comfortable temperature in theses areas.
e. Secure heating cable and cold lead as required using clips provided. Clips may be stapled to
the floor—DO NOT STAPLE HEATING CABLE OR COLD LEAD! For concrete floors,
the clips can be fastened the floor using hot melt glue or concrete screws.
6. Position mat in heated area with mesh directly to the floor. DO NOT STAPLE HEATING
CABLES.
7. Fasten one fish cord to the cold lead. Pull the cold lead through the sill plate hole, using the fish
cord, into the ECB. Thermostat sensor cable may utilize the same access hole but will need
another fish cord.
8. If a second mat is being installed, proceed in the same manner as above using a second sill plate
hole for cold lead routing to the ECB. It is important to position the second mat carefully to en-
sure that the floor temperature does not get too warm (if mats are spaced too close together) nor
too cool (if mats are spaced too far apart) where the mats run adjacent. Typically, place adjacent
mats 3" from mats laid parallel and 2" from mats laid perpendicular. However, if space is restricted,
mats can be placed a minimum of 1- 1 /
2
" apart.
9. If a floor sensing thermostat will be used to control the system, install the thermostat sensor
wire at this time to ensure it is embedded in the cementituous based mortar of the scratch coat.
Choose a sensor location where the sensor cable extends in to the heated area a minimum of 6",
is centered between two adjacent runs of heating cable (do not locate closer than 1" to heating
cable), and does not cross or overlap any other cable. Fasten the fish cord to the thermostat sen-
sor cable. Pull the sensor cable through the sill plate hole, using the fish cord, into the ECB.
10. Tighten cable clamps in ECB to secure cables. DO NOT overtighten.
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