R•O•M M4000 Power - Series IV Shutter Door
Installation Instructions
6800 East 163
rd
Street • Belton, MO • 800-827-3692
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FM-8.5-384 / D / 06-24-2022
13. Installing the Drip Pan and Drain Hose (Optional)
a) Refer to FM-8.5-191 for the installation of the drip pan and drain hose.
14. Installing the Pull Rope or Pull Strap (Optional)
a) Refer to FM-8.5-227 for the Pull Rope Installation or FM-8.5-49 for the Pull Strap Installation.
15. Control Module Wiring, Door and Lock Test
a) Finish connecting the electrical connections to the power door control module as shown in the Fig.
14 wiring diagram
b) The control module is supplied with a sensitivity potentiometer that will adjust the closing force of
the door. On the power control module there is a very tiny screw; with a screwdriver turn the screw
25 times clockwise then counterclockwise 12 times. This will be approximately the middle of the
sensitivity range. Try testing the unit by placing an object in the path of travel; it should stop the
unit when it hits the object. After testing you can adjust the setting to meet your needs by adding
or removing turns. Clockwise will decrease the sensitivity and counterclockwise will increase the
sensitivity.
c) After power is applied to the module. Drive the door both directions. If a current meter is available
measure the motor current. The normal current range for the motor is 6 to 8 Amps. Balance the
up/down motor currents by adjusting the operator spring tension see Tension adjustment in the
appendix. If a current meter is not available check the spring tension by lowering the lifting the
door manually, checking for approximately equal closing and opening forces. Another method of
balancing the forces is to time the opening and closing times and adjusting until the times are
approximately the same.
Fig. 12
