CHIEF SL220 - Manual (Page 14)

SL220 Installation Instructions
14
CAUTION: KEEP SL220 OPEN WHILE PROJECTOR IS
RUNNING OR IN COOLING MODE! Premature bulb failure
or damage to electrical components may occur if lift closes.
Replacing Ceiling Pan
1. Line up small peg on ceiling pan with hole in leg of projector
cradle. (See Figure 25)
2. Attach spring on projector cradle to hook on ceiling pan.
(See Figure 25)
3. Repeat for all four corners of the ceiling pan.
4. Replace power cord.
Figure 25
OPERATING MODES
Projector Shutdown Mode (Optional)
IMPORTANT ! :
The SL220 has a shutdown feature which
removes power from the projector when the lift is retracted. This
prevents possible damage to the projector if the SL220 is
inadvertently closed while the projector is on.
By default, this feature is disabled. To enable or disable this
feature, use the rocker switch directly above the IEC outlet. To
enable depress the blank side of rocker switch. To disable
depress the white dot side of rocker switch. The projector
MUST be plugged into the IEC outlet in order for this feature to
function. (See Figure 26)
IMPORTANT ! : Select projector cord (U or V) suitable for
projector. If neither supplied cord is suitable for projector, use a
projector cord that has an attachment plug on one end that
meets IEC-60320 and on the other end is appropriate for use
with the projector being used with the lift.
NOTE: Projector MUST be plugged into the IEC outlet located
within the lift. (See Figure 26)
NOTE: Enabling this feature may have an adverse effect on
projector bulb life.
Current Sense Mode (Optional)
IMPORTANT ! :
The SL220 MUST be extended when this
process is started.
NOTE: Projector MUST be plugged into the IEC outlet located
within the lift. (See Figure 26)
IMPORTANT ! : Select projector cord (U or V) suitable for
projector. If neither supplied cord is suitable for projector, use a
projector cord that has an attachment plug on one end that
meets IEC-60320 and on the other end is appropriate for use
with the projector being used with the lift.
Figure 26
1. Extend lift.
2. Make sure Projector Shutdown Mode is disabled. (See
Figure 26)
3. Flip DIP switch #8 (See Figure 24) to activate the Current
Sense mode.
4. Turn on the projector so that the lift will learn the normal
current draw of the projector.
NOTE: Allow projector to fully warm up.
5. Turn off projector.
In most cases, the lift will be able to detect the fan on the
projector shutting off. However, the lift cannot detect this on all
projector models.
If a fan shutoff was not detected by the lift within 5 minutes
(default setting) of the projector turning off, the lift will
automatically close assuming that the fan turning off was
undetected.
The amount of time the lift waits between when it senses the
projector turn off and when the lift assumes the fan turn-off was
missed is adjustable. (See Table 1)
Table 1: EQUIPMENT COOLDOWN
Ceiling
Pan Leg
Ceiling Pan
Spring
Equipment Cooldown
Time
Dipswitches 5 & 6
5 Minutes 5 Off; 6 Off (Default)
3 Minutes 5 On; 6 On
2 Minutes 5 Off; 6 On
1 Minute 5 On; 6 Off
IEC outlet
Shutdown mode
rocker switch
Shutdown feature
disabled when
this side of
switch pressed
Shutdown feature
enabled when
this side of
switch pressed