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M7215 DAMPER MOTOR
3. Reposition the crank arm to accommodate specific
damper requirements.
NOTE: Crank arm position is adjustable in eight
degree increments.
4. Reconnect crank arm to the motor hub.
5. If there is an excess length of linkage rod, cut it to size.
Make necessary minor adjustments until desired
operation is obtained.
6. Tighten all nuts and set screws.
WIRING
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
All wiring must comply with applicable codes and ordinances.
Refer to Fig. 3 and 4 for typical hookups.
L1
L2
2-10
+
VDC
CONTROL
–
METER INDICATING
MOTOR POSITION
(2-10 VDC)
1
DOTTED LINE REPRESENTS INTERNAL
CONNECTIONS OF THE M7215 ACTUATOR.
Fig. 3. Typical M7215 wiring.
OPERATION AND CHECKOUT
The M7215 Damper Motor accepts input from a 2-10 Vdc
controller. The motor can be checked out either directly or by
using a controller.
IMPORTANT
1. If necessary, release one of the previously tightened
linkage connections to prevent damage.
2. Check for proper operation, making sure that the link-
age does not bind and that the motor travels smoothly
throughout its cycle from fully open to fully closed.
NOTES: This motor checkout assures that:
1.
The motor operates the load.
2.
The motor responds properly to the controller.
Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis, MN 55408-0524
63-2556
B.B. 12-99
M7215
TR
TR1
IN+
IN–
1
OUT
–
OUT
+
M17365
Home and Building Control
Honeywell Limited-Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
M2H 3N7
3.
There is no linkage binding or motor stalling at
any point of travel.
4.
If questions arise regarding this product, contact
your distributor or local Honeywell representative.
+
2-10
VDC
–
CONTROL
1
POWER SUPPLY. PROVIDE
DISCONNECT MEANS
AND OVERLOAD
PROTECTION AS REQUIRED.
2
DOTTED LINE REPRESENTS
INTERNAL CONNECTIONS
OF THE M7215 ACTUATOR.
3
MAKE SURE THAT ACTUATORS
ARE WIRED IN PHASE
TR TO TR AND TR1 TO TR1.
Fig. 4. Three M7215 Damper Motors connected in parallel.
Direct Checkout
1. Mount the motor for the required application.
2. Check the damper position and make sure 24 Vac is
present across TR and TR1.
3. Apply 10 Vdc to IN+ and IN- to move damper to the
opposite position. The motor should drive the damper.
4. If the motor does not run, verify that the motor and crank
arm are properly installed for either clockwise or
counterclockwise rotation.
5. If installation is correct, but the motor does not run,
replace the motor.
Controller Checkout
1. Adjust controller setpoint to call for cooling. Observe the
motor.
2. If the damper is closed, it should begin to open.
3. If the damper remains closed, move controller setpoint
farther below room temperature.
4. If the damper still does not move, check for the
presence of 24 Vac in the input.
5. If 24 Vac is present and motor does not operate, reverse
controller leadwires to determine if device was miswired.
6. If the wiring is correct and 24 Vac is present on the input
terminals but the motor does not run, replace the motor.
M7215
IN+
CONTROL
MOTOR
1
IN–
TR
L1
2
(HOT)
OUT
TR1
L2
–
OUT
3
+
M7215
IN+
CONTROL
MOTOR
IN–
TR
2
OUT
TR1
–
OUT
+
M7215
IN+
CONTROL
MOTOR
IN–
TR
2
OUT
TR1
–
OUT
+
M17366
www.honeywell.com
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