Christie Solaria CP2220 User Manual page 25

STEP 5 - Connect External Exhaust Ducting
The projector emits a constant stream of warm exhaust air, which must
be vented to the outside of the building. Connect the site's pre-
installed, outside-venting ductwork via the 8" diameter exhaust port
on the top of the projector. Confirm that 1) there are no obstructions or
'kinks" within the ducting, 2) all air intake areas of the projector are
clear and exposed, 3) the vane switch at the exit duct is moving freely.
The site's pre-installed outside-venting duct should be rigid at the
projector and must also include a heat extractor/blower that maintains
a minimum of 450 CFM* when the projector is operating at less than
or equal to 25°C ambient and less than 3,000 feet, while measured at
the projector exhaust opening.
WARNING
• *600 CFM is required in projection rooms with ambient
temperature above 25°C or elevation (above sea level)
greater than 3000 feet.
• At minimum, a 10" long, strong metal duct must be in place at the projector to prevent
glass shards from exiting the duct in the event of a lamp explosion.
How to Calculate CFM in the 8" diameter external exhaust duct:
Use an airflow meter to measure the ft/min or ft/sec at the rigid end of the open exhaust duct that will connect
to the projector. Make sure the measurement is taken right at the very end without the projector connected.
Then multiply the reading by the cross-sectional area of the 8" duct to calculate the cubic feet/min airflow. The
formula is:
Table 2.1 Installation Requirement Calculations
Airflow
Temperature
(CFM)
450 CFM
25°C or lower
600 CFM
greater than
and below 35°C
Add an extractor/boosters as needed for your site, as the vane
switch will prevent the projector from operating if there is
insufficient airflow. Do not mount the extractor on the
projector as this may introduce some vibration into the image.
NOTE: If the duct becomes significantly blocked - or if a fan
fails - the projector should trigger an alarm before becoming
overheated or unsafe. Regardless, check airflow regularly.
For instructions refer to Airflow Interlocks, on page 4-6.
Attempting to operate the projector with inadequate airflow can result in dangerous over-
heating of the projector.
CP2220 User Manual
020-100420-06 Rev. 1 (03-2011)
Measured linear ft/min x 0.35 = CFM
Altitude (above sea
level)
at or below 3000 feet
25°C at or below 10 000
feet
Never disable the vane switch.
Section 2: Installation and Setup
Figure 2-5 Connect Exhaust
Ducting
Figure 2-6 Exhaust Duct Vane Switch
Exhaust
Duct to
Outside
450 cfm
required*
Vane Switch
Top View into
Exhaust Duct
2-5