西克制冷
(
无锡
)
有限公司
文件号
:
20070206
页数
10 of
20
Advisory Defrost Guidelines
除霜指南
SST
饱和吸气温度
-42 -36 -30 -24 -18 -12
DEFROSTS AT MAX. KTD
最大温差下的除霜次数
6 7 7 7 6 6
DEFROSTS AT 6KTD 6K
温差下的除霜次数
6 5 5 4 4 4
DEFROSTS AT MIN. KTD
最小温差下的除霜次数
5 5 4 3 3 4
Advisory defrost timing for -18°C room
建议的除霜时间
(
-18
℃
冷库）
KTD
温差
LIGHT LOAD
轻负荷
HEAVY LOAD
重负荷
LIGHT LOAD
轻负荷
1 2 3
4
5 6 7 8
10 X
X
X
X
X
X
X
8
X
X
X
X X
X
6
X
X
X
X
4
X
X
X
Vacuum must be maintained sufficiently so
as to minimise the occurrence of leaks when
the system is charged. Refrigerant must not
be charged into a system with known leaks.
Should vacuum not be maintained, check for
leaks with Nitrogen gas at a suitable
pressure prior to charging.
Installing a liquid line drier and a sight glass
in a refrigeration system is sound
engineering practice. The liquid line drier will
ensure all refrigerant supplied to the
refrigeration system is clean and dry. The
sight glass is a useful device to ensure
sufficient refrigerant is supplied to the
refrigeration system.
Refrigerant charging shall be in liquid form at
the high-pressure side of the system such as
condenser or liquid receiver. If the refrigerant
charging must be carried out through the
suction side of the compressor, charge in
vapour form only.
系统必须维持足够的真空度，这样在充注制冷
剂时不会出现泄漏现象。如果系统已有泄漏，
决不允许再充注制冷剂。如果系统不能保持真
空状态，那么在充注制冷剂前，用氮气在一定
压力下检漏。
制冷系统中安装液路干燥器和视液镜是比较好
的工程应用。液路干燥器可以确保系统中的制
冷剂是干净及干燥的。视液镜用来检查系统中
是否有足够的制冷剂。
采用液态制冷剂进行充注，一般在系统的高压
侧，比如在冷凝器或储液器。如果必须在压缩
机的吸气侧进行充注，必须以气态的方式充
注。
In order to maximise efficiency and airflow,
the following advisory defrost data has been
compiled. Defrost data is minimum number of
defrosts required per 24 hrs for average
room loads.
为了能使客户在使用我公司蒸发器时得到最高
的效率和最大的风量，建议根据以下除霜参数
进行除霜。
Double-check all field wiring connections and
factory terminals. Factory connections can
vibrate loose during shipment. Ensure
correct fan motor rotation, airflow is induced
from coil side and forced out of fan motor
side.
Check the room thermostat for normal
operation and adjust if necessary.
由于运输可能导致工厂接线松动，请再次确认
出厂前的接线及现场的接线。检查风扇马达的
运转方向是否正确，气流是否是从盘管处吸
入，从风机侧排出。
检查库房的温控器是否运行正常，有必要时可
对参数进行调整。
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