Leveling And Mounting; Wiring - Honeywell T87F Installation Instructions

Fig. 1—Leveling wallplate or subbase with
spirit level or plumb line.
SPIRIT
LEVEL
OPENING FOR
THERMOSTAT

WIRING

Fig. 2—Mounting wallplate or subbase to wall.
MOLDED
LEVELING
POST
WALLPLATE
SHOWN
NO. 4 X 1 INCH
SHEET METAL SCREWS (2)
WIRING
All wiring must comply with local electrical codes
and ordinances. Disconnect power supply before con-
necting 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
heating systems controlled by a Series 10 Thermostat.
The following hookups are typical applications. See
Figs. 3 through 7. When using the T87F for cooling
control, refer to the hookups in the Q539 Subbase in-
structions.
For variations of these systems, refer to the installa-
tion instructions for the controlled equipment.
After wiring the wallplate, plug the hole to prevent
drafts that may affect the thermostat.
60-0830—4
LEVELING
POSTS (2)
MOUNTING
SLOTS
M3319A
COVER RING
THERMOSTAT CABLE
ENTRANCE HOLES
ADD T87F AS
SHOWN ON OUTLET
BOX MOUNTING
M5324
Fig. 3—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.
2 R8184 PROTECTORELAY OIL PRIMARY CONTAINS
INTERNAL TRANSFORMER.
3
CONNECT OIL VALVE, IF APPLICABLE.
Fig. 4—T87F used for 2-wire, spst control of
heating only in a typical gas system.
Y
R 137421A
WALLPLATE
W
GAS VALVE
TH TR
TH TR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
Fig. 5—T87F replacing a Series 10 Thermostat
connected to a 3-wire, open-contact, high-limit
control.
LOW LIMIT
OPERATING CONTROL
T87F
Y
R
W
SERIES 10 OPEN
CIRCUIT HIGH LIMIT
2
COMBINATION
FAN AND LIMIT
CONTROL
FAN
MOTOR
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
3
M6105
1
L1
(HOT)
L2
FAN
MOTOR
M5318
M6102