TH109PLUS
3
TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN POWER
PANEL TO AVOID ELECTRICAL SHOCK.
The installation must be performed by a qualified electrician and must com-
ply with electrical codes of your region.
Do NOT install the thermostat in an area where it can be exposed to water
or rain.
Avoid locations where there are air drafts (such as the top of a staircase or
an air outlet), dead air spots (such as behind a door), or direct sunlight.
Do not install the thermostat on a wall section that conceals air ducts, chim-
ney pipes or stove pipes.
Install the thermostat about 1.5 m (5 feet) high, on an inside wall facing the
heater.
Install the thermostat onto an electrical box.
This thermostat has tinned copper wires for line and load connections. Spe-
cial CO/ALR solderless connectors must be used if the thermostat will be
connected to aluminium wires.
The thermostat wires are not polarized; either wire can be connected to the
load or to the power supply.
Keep the air vents at the top and bottom of the thermostat clean and free
from obstructions.
Installation guidelines
400-109-005-A (Calypso) ENG.fm Page 3 Monday, November 30, 2009 2:36 PM
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