Page 1
507030−01
*P507030-01*
05/12
*2P0512*
INSTALLATION INSTRUCTIONS FOR ECONOMIZERS AND OUTDOOR AIR HOODS
USED WITH LG/LC 036, 048, 060, 072 UNITS
Litho U.S.A.
507030−01
5/2012
Supersedes 506197−01
2012
E1ECON ECONOMIZERS
ECONOMIZERS
Note − Disregard economizer installation section when
dampers are factory−installed.
Shipping and Packing List
Package 1 of 1 contains:
1− Economizer damper assembly
A
1− GED
B
(gravity exhaust / barometric relief damper)
assembly
1− Exhaust hood kit containing:
1−Exhaust hood top
A
2−Hood sides
C
1− Outdoor air hood kit containing:
1−Outdoor air hood top
A
2−Hood sides
D
1− Birdscreen
D
1− GED seal
D
2− Birdscreen brackets
D
1− Bag assembly containing:
#10−32 X 1/2 Self−drilling screws
#10−16 X 5/8 Self−drilling screws
A
Already in place when economizer is factory−installed.
B
Optional GED already in place when economizer is
factory−installed; shipped separately when PEF is
factory−installed.
C
Shipped under the exhaust air cover when economizer
is factory−installed.
D
Shipped in the blower section when economizer is
factory−installed.
Package 1 of 1 (ordered separately) contains:
Used in horizontal airflow applications only
1− Return air cover
Order Of Installation:
Return air cover (horizontal airflow)
Economizer
Mixed air sensor (R1)
Remove GED (horizontal airflow and PEF options)
Optional OA/RA sensors
Power exhaust fans
GED seal in unit (PEF option)
GED in lower hood (horizontal and PEF options)
RA Transition (horizontal airflow)
RA duct (horizontal airflow)
Lower outdoor air hood
Upper outdoor air hood
WARNING
Improper installation, adjustment, alteration, ser-
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser-
vice must be performed by a qualified installer, ser-
vice agency or the gas supplier
CAUTION
Danger of sharp metallic edges. Can cause injury.
Take care when servicing unit to avoid accidental
contact with sharp edges.
Application
The E1ECON economizer is used with LG/LC units in
downflow and horizontal air discharge applications.
See table 1. See table 2 for the optional gravity exhaust
kit. The economizer uses outdoor air for free cooling
when temperature and/or humidity is suitable.
Optional field−provided sensors may be used instead
of unit sensors to determine whether outdoor air is
suitable for free cooling. Refer to Economizer Board
Settings section and table 3.
TABLE 1
Economizer
Unit Part No.*
036, 048 90W59 609258−01
060, 072 90W60 609258−02
*Kits include GED and hoods.
TABLE 2
Gravity Exhaust Kit
Description Unit Part No.
*Used when power ex-
haust is either field−
installed or not installed.
036, 048 74W38 606568−01
060, 072 74W39 606568−02
Used when power ex-
haust is factory−installed.
036, 048 74W89 605993−01
060, 072 72W90 605993−02
*Kits include hoods.
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