15
4-14
8 Electronic expansion valve
●
Model Coil : EBM-MD12MD-30
Body
:
EDM-B804DM-1
This unit adopts an electronic expansion valve.
The electronic expansion valve controls the
optimum refrigerant flow rate automatically,
using the temperature sensor at the evaporator
inlet and outlet pipes.
In case of emergency including controller
malfunctions, refer to the chapter of
troubleshooting, section 6.5, Emergency
operation.
(1) Replacing the coil
q
Loosen the lock nut, then remove the coil
from the body.
w
Install a new coil. The tightening torque for
installation is 6.9 to 16.7 N
m (70 to 170kgf
cm).
e
Restore the binding bands and the lead wire
into the original state.
r
After replacing, carry out refrigerant leakage
check, and make sure that there are no leaks.
e
Body
q
Coil
w
Lock nut
(2) Replacing the body
q
Loosen the lock nut, then remove the coil.
w
Remove the hexagonal head bolts, and cut
the pipe on the body, then remove remaining
pipes from brazing parts.
e
Connect a new body to the pipes. Be sure to
conduct brazing work while cooling the body
below 120˚C (248˚F) by using wet cloths.
r
Fix the body to the mounting base.
t
Remove the cap, and mount the coil with the
tightening torque of 6.9 to 16.7 N
m (70 to
170kgf
cm).
y
After replacing, carry out refrigerant leakage
check, and make sure that there are no leaks.
y
Cap
q
Coil
w
Lock nut
e
Mounting base
r
Hexagon
head bolt
t
Body
u
Apply a sillicon sealant to the lock nut section.
Seal using with
sillicon Sealant
15̲LXE10E-A33.indd 15
15̲LXE10E-A33.indd 15
07.2.1 11:57:36 AM
07.2.1 11:57:36 AM
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Содержание LXE10E-A33
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