Daikin LRMEQ5AY1E [11/71] 3 onerous repairs outside scope of warranty coverage

Daikin LRLEQ8AY1 [11/71] 3 onerous repairs outside scope of warranty coverage
English 9
10-3 Onerous Repairs (Outside Scope of
Warranty Coverage)
10-3-1 Accidents Resulting from Use
beyond Standards for Use
Use beyond Limits
Applications other than its designed purpose of
use or modification.
Standards for Use
10-3-2 Selection, Installation, Work Failures
Specified below and Other Failures
Note: Asterisk-marked items show concrete exam-
ples.
1. Model selection failures
A model not suitable for storage applications is
selected.
The cooling of products not reaching the tar-
get storage temperatures.
Cooling overloading or underloading judged by
our dealer.
The frequency of stoppage is 6 or more times
per hour or the set cooling temperature is not
attained.
2. Installation failure (Installation and environ-
mental problems)
The unit is not installed on a stable horizontal
plane.
The unit is not fixed securely.
The environmental conditions of the place of
installation differ from normal atmospheric con-
ditions.
Briny air environment, shore side, oil mist
environment, kitchen exhaust side, other cor-
rosive gas and adhesive mist environment.
The place of installation had poor ventilation
and heat dissipation.
The machine took in exhausted air again.
3. Work failure
The interior of the piping was not vacuum dried
sufficiently.
The clogging of the thin areas of the piping
caused by icing.
The interior of the piping was not sufficiently air-
tight.
Leakage of refrigerant gas.
The interior of the piping was contaminated
with foreign substance.
The clogging of the thin areas of the piping.
The unit was adversely affected by on-site
modification work.
The use of the unit beyond the operating temper-
ature range as a result of on-site modification.
An accident resulted from the improper han-
dling of the unit under installation work.
The loosening or wobbling of the outer panel
or broken or bent damage to the piping.
4. Operational failure
Temperature settings for stored objects were
wrong.
The storage of vegetables at temperatures
below 0°C.
The periodical maintenance of the unit was
neglected.
The clogging of the air heat exchanger, rust
generation from each part, gas leakage, and
icing of the indoor unit (showcase and unit
cooler).
5. Others
Improvements recommended by our dealer in
advance were not accomplished.
The simultaneous starting and stopping of a
number of units.
Accidents were caused by natural disaster or
fire.
Damage to electrical parts caused by lightning.
There were other installation and operational
problems beyond common sense.
The use of the unit without heat insulation
work on the piping.
Work was conducted without keeping the fol-
lowing showcase restrictions.
<Showcase restrictions>
· The installation of the thermostatic expansion
valve and liquid supply solenoid valve (both of
which are for R410A) on a showcase basis.
Thermal insulation of feeler tube of thermo-
static expansion valve must be thermal insu-
lated.
·
Install showcases on the same floor if the show-
cases are connected to a single outdoor unit.
· Make sure that the outlet of piping used for
the heat exchanger is located downward (as
shown on the following figure).
Item Standards for Use
Power supply
Voltage fluctuation
Within ±10% of rated voltage
Outdoor tempera-
ture range
–15°C~43°C
Connecting pip-
ing length
Within 130 m (MT (Medium Temperature))
Within 70 m (LT (Low Temperature))
Height difference
between inside
and outside units
Within 35 m
(within 10 m if the outside unit is lower)
Height difference
between inside
units
Within 5 m
Inlet
(upper side)
Outlet
(lower side)
Heat exchanger
01_EN_3P248411-1.fm Page 9 Tuesday, May 26, 2009 3:48 PM

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