Honeywell TL8100 Installation Guide

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-

8. Install the batteries (see section “Power-up” on

9. Mount the front module onto the rear module and

tighten the screw.

Fig. 1. Installation steps.

Fig. 2. Routing wires to thermostat.

M29963

SUPPLY

LOAD

PROVIDED
WIRES

M29964