一. grille-ceiling mount, 二. external control system, Installation instruction – Grandview LF-MIRCII(Recessed-Ceiling Series) User Manual

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1.Choose a position according to the required space, and then take apart the ceiling (figure 1). Please measure the

distance H between concrete roof and ceiling surface correctly (figure 2).

一.

Grille-Ceiling Mount

Take apart the ceiling

Fi gur e 2

Concrete Roof

Roof Surface

Ceiling Surface

Grille-ceiling

Fi gur e 1

H

2.This screen equips bracket, and build up the hanging bracket using the hook, M12 nut and M12 bar. Cut the length

of M12 bar to H minus 100mm(H is the distance between concrete roof and ceiling surface) (Note: H is 500mm, the

length of hanging bracket is 400m which is 500mm minus 100mm) (figure 3).

figur e 3

Ceiling

Concrete Roof

Low Bar

L minus 26mm

The width of groove

L(

The length of screen

M12 Bar

Screen

Screen Fabric

Hook

1

0

0

Hanging Board

This number of bars can
be four and two according
to different installation.

158(

The width of groove

170(

The length of screen

12

Caution

1.The shortest distance between receiver and emitter is 50cm。

2.Controller will work within 30 degree away horizontally from the center

of receiver point within 8 meters from the screen。

3.The controller will not work if the signal is covered by somthing。

4.Keep the controller far away from high temperature and humid situation。

5.Please change the battery when the signal is weak。

6.Please take the battery out if the controller was not being used for long

time。

Controller Battery Installation

1.Turn the controller around,push to open the cover as guide arrow.

2.Put the battery in according to the guide of cathode anode。

3.Close the cover。

二. External Control System

Four control systems are available

for motorized screen

(1)Manual Control

(2)Infrared Remote Control (IR)

(3)Dry Contact

(4)Switch

EXT CTRL

TRIG

EXT IR

Trigger

Dry Contact/RS232

External Infrared Receiver

B. Infrared Remote Control:

Because of the recessed mount, the

external infrared EXT lr input must be in

serted by external infrared receiver, then

please fix it in eyes for control.

External Infrared Input

A.Manual Control:

The manual control button is under

power box:

(Close to power line)Cyclic Control

Cyclic Control

Up

Stop

Down

Stop

C. Trigger :

1. Please connect 2,5mm plug of trigger to

the TRIG input on the screen; connect 3.5mm

plug to the output on trigger (only for the equip

ments which have trigger function)

2. The projection screen will automatically

lower when the projector is on. It will automatically

retract when the projector is turned off

Trigger Line

Projector

TRIGGER

This screen needs to be recessed into the ceiling, and this instruction manual shows us the grille-ceiling and
wood-ceiling as example. Please install the screen according to different applications. This screen needs to be
recessed at the best viewing angle in order to improve the image. Take out all the parts from the packaging and
follow the accessories guideline to ensure you have all parts.

M12 Bar

M12 Nut

Hook

Brooch

H

1

0

0

m

m

m

in

u

s

100. 0

Mz2 Screw (4pcs)

A

p

p

ro

x

im

a

te

ly

1

5

0

m

m

Installation Instruction

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