PS Magazine - TB 43-PS-738
PS, The Preventative Maintenance Monthly
ISSUE 738
MAY 2014
49
PS 738
MAY 14
WARNING
The IECU’s storage compartment
has a top cover that weighs 40 pounds.
It’s a two-person lift. Do not open the
cover beyond a 45-degree angle. Use
the support rod and cotter pin to hold
the cover in the open position.
T
he upper condenser section of your 60,000-BTU improved environmental control
unit (IECU), NSN 4120-01-543-0741, has an open compartment that houses an
electrical enclosure. That same compartment also stores the IECU’s components:
•±
Flexible air supply and
air return ducts
•±
Power supply cable
•±
Pigtail power cable
•±
Remote control box and cable
•±
Return air duct fange
•±
Condensation drain hose
•±
TM 9-4120-431-14 (Jul 10)
±or the IECU
CAUTION
When packing components in the storage compartment, be careful not to damage
the condenser coils and electrical wiring.
Follow these steps and refer to the drawing for perfect packing:
1.±
Operate the IECU in VENT mode ±or 1 hour. That drains condensation ±rom the IECU.
It also dries out the filter, ducts and inner coils.
2.±
Collapse the two fexible air ducts. Secure them with their straps. Put them in the
compartment.
3.±
Coil the power supply cable and store it inside the right compressed duct.
4.±
Coil the pigtail power cable and store it inside the le±t duct.
5.±
Coil the cable attached to the remote control box. Put the box and cable in the
compartment.
6.±
Put the return air duct fange in the compartment.
7.±
Make sure the condensation drain hose is dry. Coil the hose and store it inside the
return air duct fange.
60K-BTU
IECU…
A Story of Storage
Use±support±rod±to±hold±up±cover
Protect
components
from damage
or loss.
Pack them the
right
way for
shipment and
storage.
oh, boy!
storY TiMe!
today, I’ve goT
a SToRy I think
You’Ll AlL liKE.
it’s about the
RighT
waY to Store
COMPONents.
all right!
That’S MY
FavoriTE!
Remote
control box
and cable
Store
compressed
air ducts
Coil power supply
cable. Store inside right
compressed duct.
Coil pigtail power
cable. Store inside le±t
compressed duct.
Store return
air duct fange
as shown
Coil cable attached to
remote control box. Store
box and cable as shown.
Coil condensation
drain hose. Store inside
return air duct fange
738 48-49.indd
1-2
3/24/14
5:41 PM
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