69-0309—9
2
T8602A,B,C,D AND TS8602A,C Chronotherm
®
III FUEL SAVER THERMOSTATS
CAUTION
Disconnect power supply to prevent electrical
shock or equipment damage.
Location
Install thermostat and wallplate about 5 ft (1.5m) above the
floor in an area with good air circulation at room
temperature.
Do not install the thermostat where it can be affected by:
—
drafts or dead spots behind doors, in corners, or
under cabinets.
—
hot or cold air from ducts.
—
radiant heat from sun or appliances.
—
concealed pipes and chimneys.
—
unheated (uncooled) areas such as an outside wall,
behind the thermostat.
If Replacing An Existing Thermostat
Turn off power to the thermostat at the furnace or boiler. A
two-transformer system can require turning off two
switches or disconnects. Remove any existing wallplate or
subbase from the wall. Write down the letter or number on
each wiring terminal, as the wire is removed, to avoid
miswiring later.
If New Installation
Run cable to the hole in the selected wall location, and pull
about 3 in. (76 mm) of wire through the opening. Color-
coded, 18 gauge thermostat cable with at least one
conductor for each wiring terminal is recommended.
Push excess wire back into the hole, and plug the hole
with nonhardening caulk, putty or insulation to prevent
drafts from affecting the thermostat operation.
Mounting Wallplate
Remove thermostat from wallplate. See Fig. 1.
The wallplate does not require leveling for operation, but
for appearance only. The wallplate mounts directly onto
the wall with the screws included. Using the wallplate as a
template, with a pencil, mark two (of three) mounting
screw positions on the wallplate that fit the application. See
Fig. 2. Use a 3/16 in. bit to drill holes for the anchors.
Gently tap anchors into the holes until flush with the wall
surface. Thread wires through the center opening of the
wallplate. Mount the wallplate using the two screws
provided. Gently tighten the screws, level the top surface
of the wallplate, and then securely tighten the screws.
WIRES THROUGH
WALL OPENING
WALL
WALL
ANCHORS
(2)
WALLPLATE
MOUNTING
HOLES (3)
MOUNTING
SCREWS (2)
USE TWO MOUNTING HOLES THAT
BEST FIT APPLICATION.
1
1
M2917
M2918
Fig. 1. Removing thermostat from wallplate.
Fig. 2. Mounting wallplate on wall.
Wiring
CAUTION
The TS8602A,C can only be used on 750 mV
heating applications. The TS8602A,C will not
function properly on 250 mV, 500 mV or 24 Vac
heating applications.
All wiring must comply with local electrical codes and
ordinances.
Disconnect power before wiring to prevent electrical shock
or equipment damage.
The shape of the terminal barrier permits insertion of
straight or conventional wraparound wiring connections.
Either method is acceptable.
Refer to Fig. 4 through 15 for typical wallplate and
thermostat hookups.
NOTE:
•
Keep all wiring restricted to the ribbed area
surrounding the terminals (Fig. 3) to assure
thermostat/wallplate contact.
•
For single transformer applications, jumper
terminals R and RC for proper operation.