5. Maintenance
1112
13) Clearance
of
refrigerant
when
maintain
,
scrap
and
recycle
the
equipment
Refrigerant should be cleared when maintain
,
scrap and recycle the equipment
.
Discharge the
refrigerant in open and ventilated area
.
After discharging
,
vacuum the system with a vacuum pump
to ensure clearance of residual refrigerant.
When
maintain
a
unit
with
potential
leakage,
lock
the
service valves of outdoor unit and then disconnect
refrigerant pipes
.
Release the refrigerant in indoor unit to the atmosphere
.
Please be noted that it is
prohibited to recover refrigerant when unit is working in order to prevent the air from going into
compressor
.[
For split type of equipment
]
14) Requirement
about
storage of
R32 refrigerant
●
The refrigerant storage tank should be placed separately in the environment with ambient
temperature between-10
～50℃
and
with good ventilation.
Warning labels should be placed in
this area or on the tanks
.
●
For service tools
in
contact
with
the
refrigerant, they
should
be
stored
and
used
separately.
And the service tools designed for different refrigerants can not be mixed in usage or storage
.
15) Operation specification
about
equipment
dismounting
●
Before dismounting,
check and ensure safety at service area and keep good ventilation
(open doors and windows). Ignition sources are prohibited at the place where equipment is dismounted
and
the combustible materials
should
be
isolated
.
●
Please clear the refrigerant in equipment before dismounting.[For
split
type
of
equipment]
●
Try to move the refrigerant pipes along with indoor unit
.
If the refrigerant pipes
are
too
long,
cut it
from a position outside the house for easier removal
.
When the pipes are going to be used again
,
connect
them with additional extension pipes by soldering
.[
For split type of equipment
]
●
For
transportation,
loading
and
unloading
of
equipment,
please
be
careful
and
collision
and
drop
are
not
allowed.
It is forbidden to store the unit in a confined space or a space with ignition
sources.
