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Install Manual Damper
1- Disconnect all power to the unit.
2- On LGH/LCH/KG/KC/KH units equipped with
factory-installed dampers, go to Outdoor Air Hood -
Motorized Damper section.
LGH/LCH/KG/KC/KH Units
3- Remove and retain screws securing end panel to the
unit. See figure 1. Remove and discard end panel.
4- Insert top of damper assembly. See figure 14. Secure
the bottom of the assembly using retained screws.
Secure the top of the assembly with retained screws.
ZG/ZC/ZH Units
1- Disconnect all power to the unit.
2- Remove and discard unit back panel. Retain screws and
two door brackets which secure panel. See figure 2.
3- Remove filter access panel. Retain panel and screws.
4- Position retained brackets on damper assembly and
install below filter access panel. Secure damper
assembly and brackets to unit using retained screws.
See figure 13.
5- Secure the bottom of the assembly with retained
screws.
6- Replace filter access panel.
FIGURE 13
MANUAL OUTDOOR AIR DAMPER - ZG/ZC/ZH
DAMPER
ASSEMBLY
LOOSEN FOUR
SCREWS TO
SLIDE DAMPER
FILTER ACCESS
PANEL
MANUAL OUTDOOR AIR DAMPER - LGH/LCH/KG/KC/KH
DAMPER
ASSEMBLY
UNIT
FILTER
ACCESS
PANEL
FIT TOP OF
PANEL UNDER
UNIT TOP FLANGE
FIGURE 14
SECURE BOTTOM
SCREWS FIRST
LOOSEN FOUR
SCREWS TO
SLIDE DAMPER
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