WarmlyYours Snow Melting & Slab Heating - Manual (Page 6)

5
4.5 OPERATING TIPS
1. Energy consumption will vary depending on ambient temperature and building
insulation. For lower energy consumption, use a 7-day Programmable Thermostat
control.
2. Energy consumption can be minimized by turning the system OFF when heating
is not required, but extra time will be required for the floor to warm up once the
system is turned ON again.
3. Avoid placing objects like thick Mats, rugs, floor level furniture and mattresses
on the heated floor, especially in the area where the floor temperture sensor is
located. These restrict the transfer of heat away from the Cables and result in the
floor area beneath them being warmer than other areas.
4. Avoid Mats with rubber or vinyl type backing as these may decompose with heat
and could stain flooring.
5.0 INSTALLATION FOR SNOW MELTING
5.1 CONTROL OF SNOW MELTING SYSTEM
A control suitable for Snow Melting systems with pavement mounted or aerial
mounted sensor should be used for Snow Melting applications.
5.2 ELECTRICAL PROVISIONS FOR THE SYSTEMS
The Snow Melting system installation wiring shall be in accordance with the National
Electric Code and prevailing local codes.
The snow / moisture sensor cable and the Heating Cable cold leads shall be routed
to the power connection box in separate conduits.
Breaker Size (Amps) Max Design Load (Amps)
40 32
30 24
20 16
15 12
2’ (61cm)
or
3’ (91cm)
Length 5’ (152cm) min 50’ (1524cm) max
20’ (610cm) Cold Lead
Outer Sheath PVC/Pololefin
Polyester Sheath
Metal Sheath (Copper/Galvanised Steel/Cladded Steel)
Primary Insulation (Fluoropolymer)
Heating Conductor (Solid/Multistrand)
10"
(251mm)
3"
(8cm)
20’ (610cm)
Cold Lead
SENSOR HEATING
CABLE
FLOOR
1/4” (6mm)
Twin-conductor
Heating Cable
HEATING SYSTEM
THERMOSTAT
SNOW
SENSOR
SLAB TEMP HIGH
LIMIT SENSOR
SNOW MELT MAT
120 VAC SUPPLY
110V / 230V AC SUPPLY
120 VAC
or
240 VAC
RELAY
PANEL
CONTROL
PANEL
SENSOR HEATING
CABLE
FLOOR
SNOW MELT MAT
THERMOSTAT
P N E
DIAGRAM B