STEP 1:
Immediately upon receipt, all cartons and contents
should be inspected for transit damage. Units with
damaged cartons should be opened immediately.
If damage is found, it should be noted on the
delivery papers and a damage claim filed with the
last carrier. Compare carton(s) contents to
PACKAGE CONTENTS List (
TABLE 1
) above to
note any missing items.
STEP 2:
Remove SUPPLY COVER, RETURN COVER, PANEL
– TOP LEFT, and PANEL – LEFT BOTTOM SECTION
from the unit and retain for reuse
(SEE FIGURE 1)
.
Retain screws.
STEP 3:
Fasten RETURN COVER
(SEE FIGURE 2)
over
bottom return opening using 2 retained screws.
Fasten SUPPLY COVER over bottom supply opening
using 2 retained screws.
STEP 4:
Remove screws from 3 sides of ROOF PANEL so that it
can be raised during economizer insertion.
STEP 5:
R e m o v e j u m p e r p l u g a n d s l i d e e c o n o m i z e r
i n t o u n i t r e tu r n a i r s e c t i o n
( S E E F I G U R E
2 )
. A f t e r t h e e c o n o m i z e r i s i n s t a l l e d ,
c o n n e c t u n i t E C O N O M I Z E R P L U G t o
e c o n o m i z e r m a t i n g p l u g . R e i n s t a l l j u m p e r
p l u g P L 7 t o P L 2 1 ( l o c a t e d o n e c o n o m i z e r ) .
2
FIGURE 1
FIGURE 2
ST-A1230-02
ST-A1230-01
REMOVE LEFT PANEL - LOWER
(TO BE REPLACED AFTER
ECONOMIZER INSERTION)
RE MOVE LEFT PANEL - UP PER
(TO BE USED IN ECONOMIZER
RAIN HOOD AS SEM BLY)
RE MOVE SUP PLY AIR COVER
(TO BE MOVED TO
DOWNFLOW OPEN ING)
RE MOVE RE TURN AIR COVER
(TO BE MOVED TO
DOWNFLOW OPEN ING)
LEAVE TOP PANEL TOP
SCREWS ENGAGED
REMOVE REMAINING SCREWS ON
SIDES OF TOP PANEL SO AS TO
LIFT TOP PANEL SLIGHTLY TO
ALLOW ECONOMIZER TOP FLANGE
TO GO UNDER TOP PANEL FLANGE
SLIDE ECONOMIZER INTO RE TURN
AIR OPEN ING AS SHOWN. PLUG IN
WIRE HAR NESS TO MATCHING PLUG
INSTALL RETURN AIR COVER
OVER DOWNFLOW OPENING
INSTALL SUPPLY AIR COVER
OVER DOWNFLOW OPENING
