Vutec LARGE SCREEN Series User manual

LECTRIC2CMDF-INST.doc 01/25/2018
Installation Instructions
LARGE SCREEN SERIES
LECTRIC 2-C MDF
SINGLE MOTOR 120VAC OR 220VAC
VIDEO PROJECTION SCREENS

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IMPORTANT SAFETY INSTRUCTIONS
Basic safety precautions should always be followed; including the following:
♠Read and understand all instructions before proceeding with the installation and
operations.
♠Be certain that the supporting structure is sound and capable of carrying the weight as
required.
♠Seek qualified electricians to perform electrical requirements.
♠This permanently connected projection screen must be protected by a fuse or circuit
breaker. Make sure that there is a readily disconnect device incorporated on the building
installation wiring.
♠Obtain proper lifting mechanism to raise and hold the unit steady for installation.
♠Plan ahead so the installation can go smoothly and efficiently.
IMPORTANTWARNINGSANDCAUTIONS!
WARNING:AWARNINGALERTSTHEPOSSIBILITYOFSERIOUSINJURYORDEATHIFTHEINSTRUCTIONSARENOTFOLLOWED.
CAUTION:ACAUTIONALERTSTHEPOSSIBILITYOFDAMAGEORDESTRUCTIONOFEQUIPMENTIFTHEINSTRUCTIONSARENOT
FOLLOWED.
WARNING:FAILURETOREAD,THOROUGHLYUNDERSTAND,ANDFOLLOWALLINSTRUCTIONSCANRESULTINSERIOUS
PERSONALINJURY,DAMAGETOEQUIPMENT,ORVOIDINGOFFACTORYWARRANTY!ITISTHEINSTALLER’S
RESPONSIBILITYTOMAKESUREALLCOMPONENTSAREPROPERLYASSEMBLEDANDINSTALLEDUSINGTHE
INSTRUCTIONSPROVIDED.
WARNING:FAILURETOINSTALLELECTRICALREQUIREMENTSACCORDINGTONATIONAL/LOCALELECTRICALCODESAND
REGULATIONSMAYCAUSEPREMATUREFAILURE,FIREHAZARD,ELECTRICALSHOCK,UNSAFEPRACTICEAND
REVOCATIONOFUSE.
DISCLAIMER
Vutec Corporation intends to make this manual accurate and complete. However, Vutec makes no claim that the
information contained herein covers all details, conditions or variations, nor does it provide for every possible
contingency in connection with the installation for use of this product. The information contained in this document
is subject to change without notice. Vutec makes no representation of warranty, expressed or implied, regarding the
information contained herein. Vutec assumes no responsibility for accuracy, completeness or sufficiency of the
information contained in this document.
PRE- INSTALLATION
1) Carefully cut and remove packing materials.
2) Carefully unpack and inspect the unit for sign of damages.
3) Be sure to recheck and measure all pertinent dimensions before installation.
4) Most basic tools are required for installation.
SAVE THESE INSTRUCTIONS

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MECHANICAL INSTALLATION
The LECTRIC 2-C MDF large screen series weight approximately 300lbs to 550lbs depending on the size
of the screen (200” to 285” diagonal). Carefully determine the lifting and transporting methods for
bringing the screen to the mounting location.
Warning: The mounting location must be structurally sound, rigid and capable of carrying at
least 4 times the weight of the screen. Safety cable attachment is strongly
recommended for additional security.
As shown in Figure 1, there are five mounting brackets for the screen. Use 1/2 inch or 12mm diameter
threaded rods (not supplied) to hang the screen. The spaces between the brackets are varied according to
the size of the screen; to be sure, take measurements from actual unit.
Note: The two end brackets are tied to the screen roller brackets inside. These two brackets must be
used to install the screen.
Figure 1
Warning:
Thebottomweightbarisbeingsecureby
3screwstothebackoftheboxfor
shippingpurpose.
Besuretoremovethescrewstofreethe
weightbarbeforeuse.

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Profile dimensions shown in figure 1 vary according to the size of the screen ordered, see figure 2 below:
Figure 2

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ELECTRICAL CONNECTIONS
1. Be certain the power is OFF before making electrical connections. All wiring are required to comply
with National and/or Local electrical codes and regulations.
2. The standard LECTRIC 2-C MDF screen operates on 120VAC, 60Hz power supply. Control of the
screen is usually by a SPDT toggle switch with center ‘OFF’ position. Optionally, an IR (Infrared) or
RF (Radio Frequency) remote control or 12VDC-trigger relay can also operate the screen. Please
consult the dealers for details.
Note: The switch’s contacts or relay’s contacts must meet the minimum specification below.
Contact Rating: 10A @ 120VAC, 6A @ 250VAC, 1/4 HP.
3. Refer to the Wiring Diagram at the end of this manual and make connections as required. All wiring
should be made using a minimum 18-gauge wire.
For installations with 220VAC motor, the equivalent wire colors for the motor are as follow:
120VAC motor 220VAC motor Description
Green Yellow/Green Ground
White Blue Neutral
Red Black Screen up direction
Black Brown Screen down direction
For any 220VAC installation that equipped with a 120VAC motor, a step down transformer is
provided for this application. Simply follow the Wiring Diagram and connect the transformer as
shown. Be sure to place the transformer in a safe and well-ventilated location.

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FOR UNITS WITH 4 1/2” ROLLER OR 9 1/2”SQ PROFILE
UPPER LIMIT ADJUSTMENT
The upper limit for the screen is when the bottom weight bar stop just inside the housing. Do not change
the screen upper limit unless absolutely necessary.
LOWER LIMIT ADJUSTMENT
WARNING:UNLESSOTHERWISESPECIFIEDANDORDERED,STANDARDLEADERDROPIS12INCHESMAXIMUM.EXCEEDINGTHE
MAXIMUMMAYCAUSETHESCREENTOFALLOFFTHEROLLERANDVOIDTHEWARRANTY.
HEX SOCKET LIMIT SWITCH
Key features of the hex socket (Figure 6) limit switch:
⇒Each full turn (360 degrees) of the hex socket cause the screen to travel approximately 3/4 inch.
⇒Follow the label affixed to the electrical cover plate for turning of the hex sockets.
⇒As the hex socket is turning, the screen will move only in the direction of increasing travel.
Hint: Going down direction (lower limit) will see the screen move as more down being adjusted
but not the opposite.
MORE SCREEN DROP
Send the screen down to the lower limit and it should stop automatically. Leave the control switch on.
Turn the White hex socket in the + direction (see label on electrical cover plate) to make the screen come
down more. Stop turning when the screen reaches the desired lower limit.
LESS SCREEN DROP
Send the screen down to the lower limit and it should stop automatically. Leave the control switch on.
Determine the number of turns required to stop the screen above the desired lower limit.
Turn the White hex socket in the - direction the number of turns that has been determined to make it stop
above the desired lower limit.
Send the screen up half way and stop. Send it down and expect it to stop above the desired lower limit.
Repeat until the screen has stopped above the desired lower limit.
When the screen stops above the desired lower limit; proceed to MORE SCREEN DROP part to lower the
screen to the desired lower limit.
Figure 3
Limit Switch Sockets

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FOR UNITS WITH 6” AND 8” ROLLER OR 10 1/2” AND 13”SQ PROFILE
OPERATIONS
Refer to Figure 4, the Upper and Lower limit switches are built-in motor limit switches and have been
preset at the factory. Remove the yellow protective cap and check that both the yellow and white buttons
are out. The white button controls the Lower limit of the screen. The yellow button controls the Upper
limit of the screen.
Figure 4
It is important that the first cycle up and down of the screen be performed under control of an
attendant. The motor limit switches might have become disengaged during shipping and may not stop
the screen automatically resulting in damage to the screen.
1 - Send the screen down to its lower limit, observing the screen roller as it unwraps the screen fabric.
The screen should stop at the correct amount of leader specified or approximately 12 inches for
standard leader. If the screen stop as conditions mentioned, skip to step 3.
2 - If the screen continues to operate past the conditions mentioned, stop the screen and do not let it go
into reverse wrapping. Send the screen up and stop when the leader disappears into the roller. Send
the screen down and stop at the amount of leader desired. Press the white button to set it in, press
again to bring it out. The screen lower limit is defined.
3 - Send the screen up, observing the screen fabric as it being takes up by the screen roller. Stop when
the screen bottom just rolls up inside the screen housing and disappears from normal viewing
location. Press the yellow button to set it in, press again to bring it out. The screen upper limit is
defined.
4 - Test run the screen up and down again to ensure proper operations, replace the yellow protective cap
of the limit switches.
NOTE: The motor is protected by a Thermal Overload device! Operate the screen too often without
allowing sufficient off time could result in the thermal overload becomes engaged. If this occurs, the
motor will shut down for cooling off until enough time has passed for it to return to normal
operating temperature (approximately 15 minutes).