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Fig. 1—Leveling wallplate or subbase with
spirit level or plumb line.
VERTICAL
PLUMB LINE
SPIRIT
LEVEL
OPENING FOR
THERMOSTAT
WIRING
Fig. 2—Mounting wallplate or subbase to wall.
126293 COVER
RING (OPTIONAL)
WALLPLATE
MOLDED
LEVELING
POST
NO. 4 X 1 INCH SHEET
METAL SCREWS (2)
1
USE WALLPLATE FOR HEAT APPLICATIONS.
MOUNTING WALLPLATE ON OUTLET BOX
Use cover plate, wallplate assembly, T87F, and screws
as shown in Fig. 3.
1. Place the cover plate on the outlet box with the cable
entrance holes toward the bottom.
2. Pull the thermostat cable through the bottom hole.
3. Align the diamonds on the cover ring vertically and
secure cover plate with the screws provided.
NOTE: The side reading "Made in U.S.A." must be against
the wall.
4. Position the wallplate assembly and pull the thermo-
stat cable through the cable entrance hole.
5. Mount wallplate with the two screws provided.
Tighten screws after the wallplate has been leveled. See
Fig. 1 for leveling instructions.
WIRING
All wiring must comply with local electrical codes and
ordinances. Disconnect power supply before connecting
wiring to prevent electrical shock or equipment damage.
The T87F is adaptable to most 2-wire, 24 to 30 volt
heating systems, and to most 3-wire, 24 to 30 volt
DIAMOND
GUIDES (2)
LEVELING
POSTS (2)
MOUNTING
SLOTS
M3319
WALL
THERMOSTAT CABLE
ENTERANCE HOLE
M3829
heating systems controlled by a Series 10 Thermostat.
The following hookups are typical applications. See Figs.
4-8. When using the T87F for cooling control, refer to
the hookups in the Q539 Subbase instructions.
For variations of these systems, refer to the installation
instructions for the controlled equipment.
After wiring the wallplate, plug the hole to prevent
drafts that may affect the thermostat.
Fig. 3—Mounting wallplate/subbase to outlet
box.
COVER
RING
1
2
Q539
SUBBASE
T87F
CAPTIVE
SCREWS (3)
IF OUTLET BOX IS HORIZONTAL, MOUNT COVER RING IN
1
POSITION SHOWN, BUT FASTEN WITH SCREWS THROUGH "A".
USE WALLPLATE FOR HEAT APPLICATIONS.
2
Fig. 4—T87F used for 2-wire, spst control of
heating only in a typical oil system. Low
voltage power for the control circuit is supplied
by a transformer in the oil primary control.
L1 (HOT)
1
L2
BURNER
MOTOR
THERMOSTAT
Y
T
R
W
T
F
F
CAD CELL
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
R8184 PROTECTORELAY OIL PRIMARY CONTAINS
2
INTERNAL TRANSFORMER.
2
OUTLET BOX
A
THERMOSTAT CABLE
ENTRANCE HOLE
COMBINATION FAN
LIMIT
AND LIMIT CONTROL
FAN
FAN
MOTOR
OIL VALVE
IGNITION
R8184G
WHITE
2
ORANGE
BLACK
A
M3844
M6105
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