MUNDO CLIMA H9A Series, Installation And Owner'S Manual

Page: 97 / 336

7
P re p arations and P recautions
Air and f oreign m a tt er in t he re f rigeran t circui t
can cause a b nor m al rises in pressure , which
can da m age t he air condi t ioner , reduce i t s
e f ficiency , and cause injury . Use a vacuu m pu m p
and m ani f old gauge t o evacua t e t he re f rigeran t
circui t , re m oving any non-condensa b le gas and
m ois t ure f ro m t he sys t e m.
Evacua t ion should b e per f or m ed upon ini t ial
ins t alla t ion and when uni t is reloca t ed .
BEFORE PERFOR MI NG EVA CU AT I ON
† Check t o m ake sure t ha t b o t h high-
pressure and low-pressure pipes b e t ween
t he indoor and ou t door uni t s are
connec t ed properly in accordance wi t h t he
Re f rigeran t Piping Connec t ion sec t ion o f
t his m anual .
† Check t o m ake sure all wiring is connec t ed
properly .
E vacuation Instructions
Be f ore using t he m ani f old gauge and vacuu m
pu m p , read t heir opera t ion m anuals t o f a m iliarize
yoursel f wi t h how t o use t he m properly .
M
anifold Gauge
Compound gauge
-76cmHg
Low pressure valve
High pressure
valve
Pressure hose /
Charge hose
Charge hose
Vacuum
pump
Pressure gauge
Low pressure valve
1 . Connec t t he charge hose o f t he m ani f old
gauge t o service por t on t he ou t door uni t ’s
low pressure valve .
2 . Connec t ano t her charge hose f ro m t he
m ani f old gauge t o t he vacuu m pu m p .
MC MC
A
ir
E
vacuation
AIR EVACUATION
97
Fig. 7.1
This unit must be installed by a professional according RD 795/2010, RD 1027/2007 and RD 238/213