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T87F UNIVERSAL THERMOSTAT
3. Level according to Fig. 1; then tighten screws.
4. After wiring wallplate, plug hole to prevent drafts
from affecting thermostat.
NOTE: To mount T87 Thermostat on an outlet box,
order 129044A Adapter Ring Assembly.
SPIRIT
LEVEL
OPENING FOR
THERMOSTAT
WIRING
Fig. 1. Leveling wallplate or subbase with spirit level.
MOLDED
LEVELING
POST
WALLPLATE
SHOWN
NO. 4 X 1 INCH
SHEET METAL SCREWS (2)
Fig. 2. Mounting wallplate or subbase to wall.
WIRING
All wiring must comply with local electrical codes and
ordinances.
CAUTION
Electrical Hazard.
Electrical shock can cause personal injury or
equipment damage.
Disconnect power supply before beginning
installation.
The T87F is adaptable to most 2-wire, 24 to 30 volt
heating systems and to most 3-wire, 24 to 30 volt heating
systems controlled with a Series 10 Thermostat.
See Fig. 3-7 for typical application hookups. 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.
95-6731—6
LEVELING
POSTS (2)
MOUNTING
SLOTS
M3319A
COVER RING
THERMOSTAT CABLE
ENTRANCE HOLES
ADD T87F AS
SHOWN ON OUTLET
BOX MOUNTING
M5324
.
COMBINATION FAN
AND LIMIT 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.
2
R8184 PROTECTORELAY OIL PRIMARY CONTAINS
INTERNAL TRANSFORMER
3
CONNECT OIL VALVE, IF APPLICABLE.
Fig. 3. T87F used for 2-wire, spst control of heating
only in a typical oil system. Low voltage power for
control circuit is supplied by transformer in oil
primary control.
Y
R
T87F
W
GAS VALVE
TH
TR
TH
TR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
Fig. 4. T87F used for 2-wire, spst control of heating
only in a typical gas system.
LOW LIMIT
OPERATING CONTROL
T87F
Y
R
W
SERIES 10 OPEN
CIRCUIT HIGH LIMIT
Fig. 5. T87F replacing Series 10 Thermostat
connected to 3-wire, open-contact, high-limit control.
2
OIL VALVE
IGNITION
R8184G
WHITE
2
ORANGE
BLACK
COMBINATION
FAN AND LIMIT
CONTROL
FAN
LIMIT
TRANSFORMER
JUMPER
B
B
TO THERMOSTAT
CONNECTIONS ON
W
W
SERIES 10 VALVE
AT BURNER
R
R
FAN
MOTOR
3
M6105A
1
L1
(HOT)
L2
FAN
MOTOR
M5318
M6102
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