Honeywell D896 Product Data page 6

D896 AUTOMATIC VENT DAMPER
D896
1
S3 SWITCH RELAY 1K
1
USE STANDARD SCREWDRIVER TO MANUALLY OPEN AND
CLOSE VENT DAMPER. PLACE SCREWDRIVER IN SLOTTED
KNOB AND ROTATE COUNTERCLOCKWISE UNTIL
BOTH LEDS TURN ON.
Fig. 5. D896 with cover off.
D896
4
MOTOR
NORMAL
S4
5
SERVICE
N.O.
N.C. S1
C
N.O.
N.C.
S2
C
LED 1
3
POLARIZED 4-PRONG MALE MOLEX PLUG AND
4-PRONG FEMALE MATING PLUG ON CABLE
SWITCHES AS SHOWN: S1,S2,S3
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2 AFTER D896 VENT DAMPER IS PLUGGED TO L8148E1166, FUSE
BLOWS WHEN THERMOSTAT FIRST CLOSES. AFTER FUSE BLOWS,
L8148E1166 OPERATES ONLY WHEN VENT DAMPER IS CONNECTED.
3
LED 1 LIGHTS WHEN DAMPER IS OPEN.
4
LED 2 LIGHTS WITH CALL FOR HEAT.
5 SERVICE SWITCH. THE NORMAL SWITCH SETTING IS NORM. IF THE
SWITCH IS MOVED TO THE SERV POSITION, THE DAMPER REMAINS OPEN.
6 NO W,Z TERMINALS ON L7148.
Fig. 6. Wiring diagram for D896 connection to L8148E1166 /L7148 using wiring harness with two Molex plugs.
68-0186
SERVICE
SWITCH
IGNITION GAS
NORM
PWR LED
SERV
CALL FOR
HEAT LED
HARNESS
CABLE
CONNECTOR
M11373
LED 2
4
R1, R2, R3
K1
250 OHMS
2
N.O.
C N.C.
S3
K1
1
3
DAMPER OPEN
DAMPER CLOSED
Replacing D80B, D892 or Competitive
Control with D896
WARNING
Bodily harm and/or death possible. Prevent
unsupervised gas flow.
Improper wiring (device malfunction) of the D80B,
D892, D896 or competitive devices can cause
unsupervised gas flow.
A wiring harness is included with most D896 models. Use the
harness to wire the D896 according to the furnace or boiler
manufacturer wiring instructions, if available; otherwise, follow
these instructions. If field wiring is required, see appliance
manufacturer instructions or see Fig. 8 for a typical wiring
example. See Table 1 for competitive wiring cross reference.
Always cycle system through at least two appliance
operations.
Table 1. Wiring Cross Reference.
Honeywell
D892/D896
Wires D80B Wires
Yellow
Orange Blue and Red
Blue
Black
24 Vac
THERMOSTAT
WIRING
HARNESS
4
2
3
FUSE
2
5
1
6-PRONG FEMALE MOLEX
RECEPTACLE IN L8148E
AND 5-PRONG MALE
MOLEX PLUG ON CABLE
6
Honeywell Johnson
Q35 Wires
Orange Green
White
Black Red
Yellow Black
L8148E1166/L7148
T W TV
1K
Z
6
C2
C1
1K1
B2 L1 L2
B1
CIRCULATOR
L1 L2
(HOT)
1
24V GND
24V
M11382
EFFIKAL
RVG Wires
1
2
3
4