AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
68-0246
8
WIRING
Wiring Independent Zone Applications, See
Fig. 11
For independent zone applications, follow the thermostat
wiring instructions, if available, or see Fig. 11 for a typical
wiring diagram.
Fig. 11. Independent zone application wiring diagram.
Wiring Zone Systems
For zone systems, follow the thermostat and central logic
panel wiring instructions, if available.
Wiring Tandem Dampers (See Fig. 12-14)
When two dampers are controlled by the same thermostat (or
older panel with five-wire control circuit), such as occurs when
two registers, diffusers, or dampers supply the same room or
zone, the second unit is controlled by the switch action of the
first unit (see Fig. 12).
A tandem wiring diagram for use with an electric panel is
shown shown in Fig. 13.
6
J
J
COOL
HEAT
HEAT
COOL
W1
Y1
ADJUST-
ABLE
HEAT
ANTICIPATOR
T87F/Q539B INTERNAL SCHEMATIC
R1
TEMPERATURE
FALL
T87F
4
5
4
5
6
Z
1
2
3
X
DAMPER
ACTUATOR
L2
L1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
TERMINALS DUAL MARKED — R/5, W/4, Y/6 — ON 137421 WALLPLATE.
NO SYSTEM SWITCHING ON 137421 WALLPLATE.
FOR CORRECT SYSTEM OPERATION, DO NOT DISCONNECT FACTORY-
INSTALLED J-J JUMPER ON Q539B.
USE T87F3715/Q539B1039 OR T87F3707/Q539B1021.
M1366C
(HOT)
(COM)
(HOT)
1
1
2
2
2
2
3
3
4
4
5
5
