Warning, D896 automatic vent damper – Honeywell AUTOMATIC VENT DAMPER D896 User Manual

Page 6

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D896 AUTOMATIC VENT DAMPER

68-0186

6

Fig. 5. D896 with cover off.

Honeywell

D892/D896

Wires

Honeywell

D80B Wires

Johnson

Q35 Wires

EFFIKAL

RVG Wires

Yellow

Orange

Green

1

Orange

Blue and Red

White

2

Blue

Black

Red

3

Black

Yellow

Black

4

NORM
SERV

SERVICE
SWITCH

HARNESS
CABLE
CONNECTOR

IGNITION GAS
PWR LED

CALL FOR
HEAT LED

S3 SWITCH

RELAY 1K

USE STANDARD SCREWDRIVER TO MANUALLY OPEN AND
CLOSE VENT DAMPER. PLACE SCREWDRIVER IN SLOTTED
KNOB AND ROTATE COUNTERCLOCKWISE UNTIL
BOTH LEDS TURN ON.

1

1

D896

M11373

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

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.

LED 1 LIGHTS WHEN DAMPER IS OPEN.

LED 2 LIGHTS WITH CALL FOR HEAT.

SERVICE SWITCH. THE NORMAL SWITCH SETTING IS NORM. IF THE
SWITCH IS MOVED TO THE SERV POSITION, THE DAMPER REMAINS OPEN.

NO W,Z TERMINALS ON L7148.

M11382

D896

1

2

4

WIRING
HARNESS

24 Vac
THERMOSTAT

1K

L8148E1166/L7148

1K1

L1
(HOT)

L2

CIRCULATOR

3

4

1

3

2

6-PRONG FEMALE MOLEX
RECEPTACLE IN L8148E
AND 5-PRONG MALE
MOLEX PLUG ON CABLE

24V GND
24V

POLARIZED 4-PRONG MALE MOLEX PLUG AND
4-PRONG FEMALE MATING PLUG ON CABLE

FUSE

1

2

3

1

2

MOTOR

NORMAL

SERVICE

K1

R1, R2, R3
250 OHMS

N.C.

N.O.

N.C.

N.O.

C

C

S1

S2

K1

N.C.

N.O.

C

S3

SWITCHES AS SHOWN: S1,S2,S3

DAMPER OPEN
DAMPER CLOSED

T

W

TV

Z

C1

C2

L1

B2

B1

L2

5

4

5

6

6

5

3

4

S4

LED 2

LED 1

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.

Fig. 6. Wiring diagram for D896 connection to L8148E1166 /L7148 using wiring harness with two Molex plugs.

Table 1. Wiring Cross Reference.

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