Honeywell M847D Bedienungsanleitung

INSTALLATION INSTRUCTIONS

Put Bar Code Here

95C-10905-02

Direct Drive Damper Actuator

M847D

APPLICATION

The M847D is a two position, 24 Vac spring return damper

actuator designed to operate directly driven zone dampers,

used to control air flow in ducts. The synchronous motor

actuator can be driven open (or closed) using any 24 volt

rated two position switch - e.g. a wall switch or a thermostat

subbase switch.

The M847D replaces the RDMH and RDMZ damper actuators

for use on Trol-A-Temp® ARD and ZD dampers.

SPECIFICATIONS

Electrical Rating: 24 Vac 60 Hz 0.32 Amp., 8 VA

Electrical Connection: 1/2” conduit

Nominal Angular Rotation: 90° (max. 105°)

Torque: Min. 423 mNm* (60 in. oz) output torque available

when motor is energized and device is at the spring

returned initial start position.

Nominal Motor Timing: ( @ 25° C ambient)

Energized at rated load - 30 seconds.

De-energized (spring return) - 10 seconds.

Ambient Temperature Rating: 5 to 60° C (+40 to 140° F)

Finish: zinc plated steel, anodized aluminium

Direction of Shaft Rotation: clockwise, when energized and

viewed from the base or shaft end.

Mounting Means: direct connection to damper shaft.

Mounting Position: Multi-poise.

Dimensions: See Figure 1.

*mNm = milli newton meter.

Table 1. Nominal Device Dimension

ABCDEF

mm 60 84.5 88 8.2 31.5 19.3

in 2-3/8 3-3/8 3-1/2 5/16 1-1/4 3/4

GHJKLM

mm 15.8 58.6 29.3 33.5 6.4 40.4

in 5/8 2-5/16 1-3/16 1-5/16 1/4 1-9/16

DIRECT DRIVE DAMPER ACTUATOR M847D

95C-10905—02 2

Fig. 1. Dimensional Details.

INSTALLATION AND

CHECKOUT

CAUTION

1. Read these instructions carefully. Failure to follow them

could cause a hazardous condition.

2. Disconnect power supply before beginning of installa-

tion and wiring of control to prevent electrical shock or

equipment damage.

3. Check the ratings given in the instructions and on the

product to make sure the product is suitable for your

application.

4. All wiring must comply with local electrical codes, ordi-

nances, and regulations.

5. Installer must be a trained, experienced service techni-

cian.

6. After installation is complete, check out the product

operation as provided in these instructions.

WARNING

1. DO NOT install this actuator on a flue damper.

2. DO NOT attempt to rotate the actuator by turning

the connection coupling or the damper shaft when it

is connected to the actuator or damage to the gear

train may occur.

STANDARD MOUNTING (For 5/16” dia. damper shaft)

The M847D can be attached directly to the protruding 5/16”

diameter damper shaft using the sleeve of the output shaft.

Drill a 5/16” (8 mm) hole 1-5/16” (33.5 mm) directly below the

damper shaft opening to accept the anti-rotation shaft

protruding from the base of the motor. The length of the

damper shaft to which the connection coupling is attached is

such as to firmly hold the actuator in a position to adequately

engage the anti-rotation pin in the warm air duct. See Figure 1

for the critical dimensions.

Replacing M847D on a Trol-A-Temp® ARD damper

1. Disconnect the motor wiring.

2. Using a 1/8 in. hex wrench to loosen the motor coupling

from the blade shaft, remove the existing motor assem-

bly.

3. Observe that the damper blades are in the normal,

spring open or spring closed position.

4. Place the new motor onto the shaft and tighten the cou-

pling.

5. Reconnect the motor wiring.

ALTERNATE MOUNTING (For 7/16” dia. coupling style

dampers)

Before installing the M847D actuator to a damper with a 7/16”

coupling, insert the drive shaft extension into the drive shaft

and tighten with the set screw provided. See Fig. 2. Also

install the anti-rotation extension to the end of the anti-rotation

rod. Install the actuator on the damper and tighten the

coupling screw.

Fig. 2. For 7/16” Coupling Models Only.

Replacing M847D on a Trol-A-Temp® ZDS or ZDB damper

1. Disconnect the motor wiring.

2. Using a 3/16 in. hex wrench to loosen the Allen screw

located above the faceplate at the motor coupling.

3. Remove the existing motor.

4. Observe that the damper blades are in the open posi-

tion with the setscrew pointing toward the damper label.

5. Attach the new motor to the coupling. Make sure that

the standoff on the motor is positioned in the grommet

on the faceplate.

6. Tighten the set screw.

7. Reconnect the motor wiring.

DIRECT DRIVE DAMPER ACTUATOR M847D

395C-10905—02

Wiring

See Figure 3 for typical wiring hook-ups of the M847D.

Fig. 3. Typical M847D Hookup.

CHECKOUT

After completing the installation, check that the equipment

operates correctly as follows:

1. When 24 Vac is applied to the motor leads, the motor

powers to the closed or open position.

2. When power is removed, the motor releases and spring

returns to the normal position.

If full opening and closing is not achieved, check the lower

adjustment lever is to the extreme left and the upper lever is to

the extreme right. See Fig. 4 (Air Flow Adjustments).

Air Flow Adjustments

NOTE: The following describes the adjustments available

with the actuator installed in the power closed

mode. If the damper you are installing is to operate in

the power open mode, the function of the upper and

lower levers is reversed.

1. When viewed on end, the lower lever is normally posi-

tioned to the extreme left (See Fig. 4). This position

allows the damper to fully open 90° when de-energized.

2. To restrict the air flow in the open position, loosen (do

not removed) the wing nut and move the lower lever to

the right until the desired position is reached. Tighten

the wing nut. In the extreme right position the damper

should open approx. 50° with the power off.

3. The upper lever is normally positioned to the right to

provide complete shut off when the actuator is ener-

gized (See Fig. 4).

4. If desired, to prevent complete closure of the damper,

loosen (do not remove) the wing nut on the bottom of

the unit and move the upper lever to the left until the

desired position is achieved. Tighten the wing nut. In the

extreme left position the damper should close to approx.

40° with the power on.

5. If additional rotation is required beyond 90°, an addi-

tional 15° may be obtained by removing the Upper

Lever. To do this, first remove the actuator from the

damper. Remove the wing nut and retaining ring then

remove the levers. Reassemble and install.

Fig. 4. Air Flow Adjustment

PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

NOMINAL CURRENT 0.32 AMP.

24 VAC

60 HZ

ZONING SWITCH

OPERATOR

MOTOR

ORANGE

YELLOW

M32381

DIRECT DRIVE DAMPER ACTUATOR M847D

Automation and Control Solutions

Honeywell International Inc.

1985 Douglas Drive North

Golden Valley, MN 55422

customer.honeywell.com

® U.S. Registered Trademark

95C-10905—02 T.D. Rev. 12-10

Printed in U.S.A.

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