Step 13 - Remove Supply-Fan Shipping Bracket; Screws; Step 14 - Remove Pe Shipping Bracket Screws; Step 15 - Remove Return-Fan Shipping Brackets - Carrier WeatherExpert 48N2 Installation Instructions Manual
Packaged rooftop cooling units with gas heat and comfortlink controls
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LEGEND
BP
— Building Pressure
DP
— Duct pressure
OACFM
— Outdoor air CFM
Fig. 25 — Auxiliary Control Box Arrangement
Step 13 — Remove Supply-Fan Shipping Bracket
Screws
Supply-fan shipping bracket screws must be removed from each
corner of the fan sled before starting unit. See Fig. 26.
1.
To remove shipping bracket screws, raise fan sled by turning
adjusting bolt counterclockwise until spring is compressed
slightly.
SHIPPING BRACKET
SCREWS (4)
EACH SPRING
SPRING
SUPPORT
Fig. 27 — Supply Fan and PE Fan Shipping Bracket Bolts
2.
Remove screws holding shipping bracket to spring support.
NOTE: It is not necessary to remove the shipping bracket,
only remove the screws.
3.
After removing all shipping bracket screws, level fan sled
using the adjusting screws.
RETURN FAN SHIPPING
BRACKET BOLTS
Fig. 26 — Return Fan Shipping Bracket Bolts
Step 14 — Remove PE Shipping Bracket Screws
Optional (PE) power exhaust shipping bracket screws must be re-
moved from each corner of the fan sled before starting unit.
1.
To remove shipping bracket screws, raise fan sled by turning
adjusting bolt counterclockwise until spring is compressed
slightly.
2.
Remove screws holding shipping bracket to spring support.
NOTE: It is not necessary to remove the shipping bracket,
only remove the screws.
3.
After removing all shipping bracket screws, level fan sled
using the adjusting screws.
Step 15 — Remove Return-Fan Shipping Brackets
Optional return fan shipping brackets must be removed from each
corner of the fan sled before starting unit. See Fig. 27.
To remove shipping brackets, remove 2 screws holding each
bracket to the cross rail. There are 4 brackets per unit.
After removing all shipping brackets, level the fan using the ad-
justment screws.
33
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