Indel Webasto Marine Isotherm VE150, Installation And Usage Instructions

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22
VE150 Cooling Unit
Problems
Reasons Possible Issue /
Check
Solution Notes
The Unit is new
Gas Leakage
1. The electrical
consumption is less
than normal
2. The pressure
on charge valve is
lower than 0 bar
(0 psi) when the
system works
3. The pressure on
charge valve is less
of 1.5 bar (21 psi)
when the system
is off
Where it is possible
close the leak with
welding or remove the
part where is the hole.
Put the system on pressure
with nitrogen gas max 5 bars
(70 psi), search the leakage
with liquid leak detector or
electronic nose for R134a
Presence of humidity
inside the capillary in
the evaporator.
1. The electrical
consumption is
20% less than
normal.
2. The pressure
on charge valve is
lower than 0 bar
(0 psi) when the
system works
3. The pressure on
charge valve is less
of 1.5 bar (21 psi)
when the system
is off
Switch off the system,
wait about 5 minutes,
then heat up the capil-
lary, than turn on the
system, check again
from the beginning. If
pressure keeps going
under 0 bar, heat up
the capillary while the
system is on.
If pressure keeps
going under 0 bar, it
is necessary to bring
the unit back to the
laboratory.
More detailed info can be
requested if needed.
Presence of Humidity
inside the cabinet
Humidity gets
inside the cabinet
by passing through
the gasket or pipes
hole through the
cabinet. /
Ice presence all
over evaporator
Look where the ice is
thicker, usually humid-
ity gets in on that side.
Put back in place the
gasket, by modelling
it by hand, if it is not
possible by using mod-
erate heat source
Replace the gasket
where it is possible or
the door.
Too much gas Low performance
- a bit higher con-
sumption and pres-
ence of ice on pipe
between evapora-
tor and compressor.
Remove gas a bit at a
time, check how pres-
sure works inside the
system.