INSTALLATION INSTRUCTIONS
TL8100
7 DAY PROGRAMMABLE HYDRONIC THERMOSTAT
GUIDELINES
TURN OFF POWER TO THE HEATING SYSTEM AT
THE MAIN POWER PANEL TO AVOID ELECTRICAL
SHOCK. INSTALLATION SHOULD BE CARRIED OUT
BY AN ELECTRICIAN.
• For a new installation, choose a location about 5 ft.
(1.5 m) above the floor.
• The thermostat must be installed on an inside wall.
• Avoid locations where there are air drafts (top of
staircase, air outlet), dead air spots (behind a door),
direct sunlight, or concealed chimneys or stove pipes.
PROCEDURE
1. Loosen the captive screw securing the front mod-
ule to the rear module as shown in Fig. 1.
2. Lift the lower part of the front module to remove it
from the rear module.
3. Loosen the captive screw holding the terminal
cover and remove the cover.
4. Pass the wires through the opening to the right of
the terminals. See Fig. 2. Secure the rear module
to an electrical box or to the wall using the supplied
wall anchors and screws.
5. Connect the wires (see section “Thermostat Wir-
ing” on page 2). Use 12 AWG or smaller wire. 14
AWG is recommended for line voltage, 18 AWG is
recommended for 24 VAC.
6. Install the terminal cover and tighten the screw.
7. Configure the thermostat using the switches
located on the back of the front module (see sec-
tion “Thermostat Configuration” on page 3).
8. Install the batteries (see section “Power-up” on
page 3).
9. Mount the front module onto the rear module and
tighten the screw.
Fig. 1. Installation steps.
Fig. 2. Routing wires to thermostat.
SUPPLY
LOAD
PROVIDED
WIRES
M29964
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