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Installation
WARNING
Hazardous Service Procedures!
Failure to follow all precautions in this manual and on
the tags, stickers, and labels could result in death or
serious injury.
Technicians, in order to protect themselves from
potential electrical, mechanical, and chemical hazards,
MUST follow precautions in this manual and on the
tags, stickers, and labels, as well as the following
instructions: Unless specified otherwise, disconnect all
electrical power including remote disconnect and
discharge all energy storing devices such as capacitors
before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be
inadvertently energized.When necessary to work with
live electrical components, have a qualified licensed
electrician or other individual who has been trained in
handling live electrical components perform these
tasks.
CAUTION
Heavy Object!
Economizer weighs over 50lbs and should be installed
with two people. Failure to follow instructions could
result in minor to moderate injury and equipment
damage.
Field Installed Option
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
NOTICE
Equipment Damage!
Forcibly turning the motor shaft can damage the gear
train and motor beyond repair. Never turn the motor
shaft by hand or with a wrench.
ACC-SVN203C-EN
Economizer and Fresh Air Hood
Installation
1. Remove the filter access panel, unit end panel and
horizontal return panel. See
Figure 3.
Panel removal
HZ
Return
Panel
2. Assemble economizer onto unit. Align edge of both
side of economizer panel flange with LH and RH side
post as shown for positioning and economizer should
rest on return base pan as illustrated in
Figure 4.
Economizer installation
Side Post
Side Post
Should Align
Economizer
Base Pane
Figure
3.
Filter
Access
Panel
End
Panel
Figure
4.
Base Pane
1
Economizer
7
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