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liquid refrigerant raises from low pressure side of charging ways to supplement

refrigerants. 除了对已确定的系统可进行称量加注外，确定制冷剂充注量的常用方法之一是观察液体

管道视液镜中制冷剂的流动情况。当液体流动清晰可见时，就可认为制冷剂已正确加注。出现

气泡通常说明制冷剂不足，但也可能是视镜前的液管存在缩放部分或冷凝压力的快速变化使制

冷剂压力下降。因此视液镜可作为一种确定制冷剂加注量的一个有效依据。

In addition to the determined system has been weighted and supplement

refrigerant, commonly used method of filling quantity of fluid is used to watch flow

condition of refrigerant in the level glass of pipeline. When the liquid flows clearly, we

can think refrigerants has correctly supplement. Exsiting air bubbles that usually indicates

insufficient refrigerants, but may also existence of scaling part in the liquid pipe before

level glass or refrigerant pressure drop because of condensing pressure changes quickly. Therefore level glass can be used as a kind of determination of an effective filling station. （三）、应保持清洁干燥，定期清扫风冷冷凝器翅片的灰尘及油污等杂物及传热管内侧的污

垢。

Should maintain clean and dry, regularly clean air-cooled condenser the dust and finned heat

and debris to grease the dirt. （四）、查电控线头及其它部件是否有松动现象，如遇异常应及时维修和更换，检查前务必

切断电源。Check whether the components and other electronic thread is loose, if exsiting any

abnormal phenomenon, should be timely maintenance and replacement, before inspection make

sure cut off supply power . （五）、多联机组停机时，应重点检查每组电磁阀是否关闭严，如果关闭不严将会对压缩机

造成重大的损害 When multi-connecting unit stops, we should check every group

electromagnetic valve whether closed tightly , if not closed will cause major compressor damage

（六）、机组长期停机的操作步骤 Operating steps for unit long time closing down

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关闭供液总阀，打开两到三个库，打开压缩机，将氟利昂抽回至储液器里，关闭 库温

旋钮。然后关闭吸气总阀门，把总电源开关断开。Close supply liquid valve and open one

to two cold rooms, open the compressor, will withdraw the freon to liquid reserviors, close temperature knob. Then close the air intake valve, cut off the total power switch. （七）、机组长期停机后在开机的操作步骤 Starting steps after long time closing down

1) 先合总电源，，预热 12~18 小时，使压缩机曲轴箱或油分的温度周围环境高于

20℃ ，检查除供液阀以外的所有阀门是否处在全开状态。First shut off the total

power, pre-heating 12 to 18 hours, making compressor crankcase or the oil

separator temperature higher 20℃than environment, check all valves except

supply liquid valve whether is in wide open position or not. 2) 查看吸气压力是否过高，如果超过 5Bar 以上，需要开机抽氟步骤是： 打开自动控制

的启动按钮，关闭所有压缩机的旋纽开关，当有压缩机显示启动时，先打开风机和水

泵的旋钮，把任意一台台压缩机的吸气阀门关闭到还剩 3-4 圈后，用这台压缩机缓慢

把压力抽到停机压力。Check the air intake pressure high or not, if above 5Bar, steps for opening and pumping fluorine are: Open the automatic control button

and close all knob switch of compressor, When a compressor display starting up, first open the fan and pump knob, the arbitrary compressor suction valve close to

remained 3-4 laps, use this compressor slowly pumping the pressure to closing

down pressure. 3) 慢慢打开总供液阀（长时间停机要关闭此阀，将氟利昂抽到储液器里）然后看哪个库

房需要降温，就打开那个库的旋钮开关。压缩机会自动开停。Slowly open the total

supplu liquid valve(close this valve for long time stopping machine, pump freon

to liquid reserviors )then watch which house need drop temperature, open the

knob switch of the house. Compressor can be on-off automatically. 20、常见压缩机故障速查表 Common compressor fault look-up table

问题 QUESTION 可能原因 REASON 处理方法 DISPOSAL ROUTR

压缩机不启动 Not starting

of compressor

电脑控制器损坏或压缩机没

有输出开机信号 Computer

controller damaged or

compressor doesn’t delivery

starting signal

电气故障 Electrical fault

保护起作用（高低压压控制

更换电脑控制器或调整压缩机运

行参数 Changing computer

controller or compressor operation

parameter

查明原因进行修复 Finding out

reasons and repairing

查明保护，手动恢复或调整保护

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器、油压、热继电器、电机

保护模块等）

Protetcion(High and low

controller, oil pressure, thermal relay, motor

protection moudle and so on)

值

Finding out protetcion, manual

recovering or adjusting protection

valve

吸气压力高 Air intake

pressure is high

膨胀阀供应过量 Expansion

valve supply in excess

超负荷 Overload

压缩机停机 Compressor

stops

压缩机高低压串气 High and

low volatge blow-by of

compressor

调整膨胀阀 过热度 Adjusting

expansion valve over-heating

degree

减小负荷 Reducing lad

检查控制系统 Checking

controlling system

拆机检修阀片垫片是否损坏

Disassembling and checking valve

sheet and spacer whether damaged

吸气压力低 Air intake

pressure is low

低压控制器保护

Low pressure controller

protection

系统有泄漏或制冷剂少

System has leakage or little

refrigerant

蒸发器结霜多，膨胀阀关闭

Eavoprator frosts too much, Expansion valve is closed. 低压保护值设置不当

Improper low pressure

protection value

膨胀阀堵或损坏 Expansion

valve is blocked or damaged

供液干燥过滤器堵塞 Dry

filter of feeding liquid is

blocked

吸气管过滤器堵塞 Air intake

pipe filter is blocked

压缩机滤网堵塞 Filter screen

of compressor is blocked

检查、修理泄露点或补充制冷剂

Checking, repairing leak point or fill

refrigerant

手动化霜 Manual defrosting

重新设定保护值 Adjusting

protection value again

清洗或更换膨胀阀 Clean or

change expansion valve

更换干燥过滤器 Changing dry

filter

更换过滤器 Changing filter

清洗滤网 Cleaning filter screen

排气压力高 Exhaust

pressure is high

高压控制器保护

High pressure controller

protection

冷凝器风扇不转 Condending

fan is not working

冷凝器脏 Condensing is dirty

环境温度高或通风不良 High

enviromental temperature or

not well ventilation

高压保护值设置不当

Improper high pressure

protection value

系统中有不凝气体 There is

not condensing gas in system

制冷剂过量 Over refrigerant

高压侧堵塞 Side of high

pressure is blocking

吸气压力高 Air intake

检查控制系统/电机 Checking and

controlling system/motor

清理冷凝器 Cleaning condensing

改善环境温度或通风 Improving

enviromental temperature or

ventilation

重新调整保护值 Adjusting

protection value again

排掉不凝气体 Discharging no

condensing gas

排出多余制冷剂 Discharging the

surplus refrigerant

检查 清理 阀 / 管道 Checking

cleaning valve/pipeline

减小系统负荷 Minishing system

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pressure is high load

排气压力低 Exhaust

pressure is low

环境温度低或冷却水温太低

Enviroment temperature is

low or cooling water

temperature is low

压缩机内部机械部件故障

Inside mechanical parts of

compressor fault

制冷剂过少，吸气压力低

Little refrigerant, air intake

pressure is low

可停转风机或水泵 May stop

cooling fan or water pump

拆机检修 Disassembling and

checking

补充制冷剂 Fill refrigerant

螺杆机油流量开关切断

Cutting oil flow switch of

screw compressor

油过滤器脏 Oil filter is dirty

油分离器内油位低 oil level

of oil seperator is low

电磁阀关闭 Closing the

solenoid valve

清理滤油器 Cleaning oil filter

加油 Adding oil

清洗或更换电磁阀 Cleaning or

changing solenoid

油分离器或活塞机曲轴箱

油位降低 Oil seperator or oil

level of piston crankcase box

reducing

管道系统回油不畅Piping

system return oil is not

smooth

系统回液带走冷冻油syetem

return liquid taking away the

refrigerant oil

油没有提前加热，油温低

Oil is not heating in advance, oil temperature is lower

加油量不足 Not enough of

adding oil

按照规范修改管道According to

norm modifying pipeline

正确吸气过热度The correct air

intake heat degree

提前加热，使曲轴箱或油分的温

度周围环境高于 20℃ heating in

advance, making crankbox or oil

seperator temperature higher than

20℃

补充冷冻油 supplying refrigerant

oil

活塞机油压控制器保护

Piston oil pressure controllor

protection

系统太脏，油过滤器堵塞

System is dirty, oil filter is

blocked

系统回液湿运行，油被制冷

剂带走 System return liquid

operating, oil is taken away by

refrigerant

油位低缺少冷冻油

油压控制器或油泵损坏

清洗油过滤器，更换冷冻油

Washing oil filter, changing

refrigeration oil

检查回液原因并加以排除

Checking return liquid reason and

removing

补充冷冻油或检查系统回油状况

Supply refrigerant oil or check

system return oil condition

更换

CIC 模块保护 Module

protection

排气温度高Exhaust

temperature higher

控制线路故障Controlling

circuit fault

模块本身故障Module fault

检查系统是否缺少制冷剂，检查

喷液喷嘴，供液管路是否有堵塞

检查模块电压及控制电路接线方

式 Checking system whether

shortage of refrigerant, checking

hydrojet nozzle, feeding liquid

whether blocking, checking module

voltage and controlling circuit

connecting way

更换 Exchange

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电机保护装置被激活

Electrical protection device

is activited

(SE-E1 或 SE-B1 或 SE-B2)

电气故障导致电机过热

Elecrical fault caused motor

over-heating

机械故障 Mechanical fault

启动次序不对 Wrong order

of starting

吸气温度太高 Air intake

temperature higher

压缩机装配过紧 Compressor

assemble tighten

压缩机油锁定 Compressor

oil is locked

电机埙坏 Motor is damaged

检查电源电压电流，主电源电路

Checking power voltage, current, the main source circuit 接线方式，

conecting way 控制电路接线方

式，controlling circuit way 电器配

置 Electrical equipment

configuration，频繁启动

frequently starting

拆机检查 Disassembling and

checking

检查、调整相序 Checking, adjusting order

降低吸气温度 reducing air intake

temperature

检查压缩机电流 Checking

compressor current

压缩机排油 Compressor oil

extraction

检查电机三相之间阻值是否平

衡，对地阻值是否击穿 Checking

motor three-phase whether equal, whether breakdown the groud

resistivity

机组振动声较大 Vibrant

sound is large

机组放置不平The unit is

placed not in level

管路振动Vibrating of pipe

机组找平 Make level of unit

固定好管路 Fixing the pipeline

压缩机频繁启动 Frequently

starting of compressor

系统中制冷剂少 Little

refrigerant in system

压力或电脑控制器调整不当

Adjusting improper of

pressure or computer

controller

电气控制线路故障 Electrical

controller wire fault

热力膨胀阀调节过小或选型

小 Adjusting thermostatic

expansion valve or type

selection

检漏，充制冷剂 Leakage

detecting, filling refrigerant

重新调整 Readjustment

排除故障 Removal of fault

调整膨胀阀的开启度或更换膨胀

阀 Adjust expansion valve opening

or changing it

压缩机运行时嗡嗡响

Operating of compressor

with annoying buzz

过载继电器失效 Over-load

release losing effectiveness

接触器故障 Contactor faliure

保护装置被激活 Protection

device is activated

压缩机故障 Compressor

faliure

压缩机油锁定 Locking

compressor oil

检查、更换 Checking, changing

检查、更换 Checking, changing

SE-B1、SE-E1 断电重置

Interruption of power supply

检查故障原因 Checking faliure

reason

压缩机排油 Discharging oil of

compressor

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压缩机启动时有嗡鸣声

Starting of compressor

with annoying buzz

端子接线不正确 Wrong

terminal connecting

排气压力高 High exhaust

pressure

启动接触器有问题 Starting

contactor has problem

分线圈启动有问题 Starting

of coil has problem

压缩机装配过紧 Compressor

assembling is too tight

供电错误 Wrong supplying

power

调整接线 Adjusting wiring

调整到合适的排气压力 Adjusting

to proper exhaust pressure

更换有问题的接触器 Changing

problem contactor

检查、调整 Checking, adjusting

更换压缩机 Changing compressor

纠正连接到机组的电压 Correcting

the voltage

压缩机机头结霜太多

Compressor machine frost

too much

膨胀阀开启度过大或选型过

大 Expansion valve open large

or excessive selection

蒸发器结霜太多

Evaporator frost too much

制冷剂过多 Too much

refrigerant

关小膨胀阀或更换膨胀阀

Turn down expansion valve or

change it

停机化霜或检查蒸发器电机风扇

是否损坏 stop machine and defrost

or check the eavoprator cooling fun

whether damage

排出一部分制冷剂 discharge part

refrigerant

21、压缩机电气方面故障分析 Compressor electrical failure analysis

制冷压缩机电机出现故障的原因有很多，从本质上可分为机械和电气两类。以下内容可

以帮助您确认系统中当前电机电气故障的根本原因。

There is many reasons of failure of refrigeration compressor motor, in essence it

can be divided into two kinds of mechanical and electrical. The following content can

help you to confirm the motor system failure. 山东神舟制冷有限公司建议，一旦压缩机电机发生故障，请在修理好或更换的压缩机试

机前，将检查接触器和过载保护器，如有损坏则需要更换新的接触器和过载保护器。

Shandong Shenzhou Refrigeration Equipment Co., Ltd advise that once

compressor motor has failure, befroe repairing or changing, pls checking contactor and

over-load protector, if damage need change new contactor and over-load protector. 压缩机电机故障的主要来源 Main source of compressor motor failure

1、 机械故障引起的电机故障 MECHANICAL FAILURE CAUSED MOTOR FAILURE

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 机械运动的“卡死”造成电机的过载，使电机烧毁

Mechanical movement "dead" caused motor overload and made electrical motor burnning

 金属残渣引起的电机的匝间或相间的短路

Metal scraps caused short circuit of motor. 2、 电气原因引起的电机故障 ELECTRICAL REASON CAUSED MOTOR FAILURE

 三相电源的缺相

Shortage of three-phase power

 三相电源的不平衡

Unbalance of three-phase power

 电源电压的异常

Abnormal of power voltage

 交流接触器的配置

Configurartion of AC contactor

 接线不实

Imperfect connection

 分线圈电机延时时间过长 Coil motor delay for long time

 压缩机频繁启动

Frequently start compressor

3、 其它原因 OTHER REASON

 用压缩机抽真空

Vacuum-pumping uses compressor

 电机冷却 不足，造成排气温度过高

The motor is not enough cooling, which caused higher exhaust temperature

 由于润化油的失效造成的机械故障

Due to lubricating oil losing effectiveness caused mechanical failure

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 制冷系统含有水，含酸性，电机绝缘下降

Refrigeration system contains water, and acidity, insulation of motor decrease

 电机烧毁的现象为：Phenomenon of motor burnning:

单相烧掉 Single phase burnning

指一个三相电机，两相故障而导致剩余一相两个线圈都过热或者烧掉的现象。比如说压缩机

某一相接触器持续连接，通电。

It indicates a three-phase motor, two phase failure caused the rest phase over heat and burnning

phenomenon. For example one phase contactor continuing connecting and power on. 点烧坏 Point burnning

指线圈内、分线圈之间或者线圈对地发生局部烧坏。请检查是否存在金属残渣或之前有机械

损伤。 另外，也可能是由于电涌、电压集中或者高电流而造成该现象。

It indicates inside coil, between coil or coil to ground happening part burnning. Pls

check whether there is metal scraps or before has mechnical damage. Besides, maybe

due to powe surge, voltage focus or high current caused this phenomenon. 端子短路 TERMINAL SHORT CIRCUIT

在端子上安装时扭矩过大非常有可能造成端子连接的绝缘不好，而引起端子短路。也可能

是因为压缩机接线盒受潮。在这种情况下，需确认接线盒的密封圈和进线孔的密封。

In the terminal installation excessive torque is very likely cause bad insulation of

connecting terminals and terminal short-circuit. Also may be because of the compressor

junction box damp. In this case, need to confirm the boxes into the hole sealing and line. 分线圈过热故障 COIL OVER-HEAT FAULT

指分线圈三相电机上的一个分线包由于某接触器动作或者失效而导致过热或烧掉，剩下的

那个线包无电压的现象。如这种情况请确认接触器和启动器的电气联动装置的接触功能是否良

好。

It indictaes that one coil of three-phase motor due to some contactor losing

effectiveness and caused over-heat or burnning, the rest coil has no volatge phenomenon.

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If in this situation please confirm contactor and starter electric interlock contact function

is good. 均匀烧坏 AVERAGE BURNNING

所有的绕组均匀过热或烧掉。原因可能是电压不对或者电压不均衡。同样也需要检查一

下电机是否被适当冷却

All of winding uniform is overheat or burned. The reason may be wrong voltage or

unequal volatge. Also need check whether the motor is proper cooling. 22、压缩机机械方面故障分析 Compressor machinery fault analysis

压缩机的机械故障主要来源于以下几方面：

Compressor machinery fault mainly comes from the following aspects:

 由于液击造成吸排气阀片的损坏

Due to liquid impact caused the damage of absorption and vent valve chips

 由于强烈的液击造成曲轴、活塞连杆组及螺杆机的阴阳螺杆的损坏

Due to strong liquid impact caused bent axle, piston connecting rod and screw machine

damage

 由于回液造成冷冻油的稀释，导致机械运动部件的磨损

Due to return liquid caused dilution of refrigeration oil, caused attrition of mechanical

movement parts.  由于排汽温度过高造成冷冻油的失效导致机械运动部件的磨损

Due to exhaust steam temperature higher caused refrigeration oil lose effectiveness and caused

attrition of mechanical movement parts.  由于缺油运转造成机械运动部件的磨损

Due to shortage of oil operation caused attrition of mechanical movement parts. 23、质 保 服 务 Quality service

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（一）、保修期规定：Warranty period stipulate

1) 在用户遵守产品使用说明书所示各项规定的条件下，从本公司发货之日起12个月内，

产品因质量不良发生不正常工作或损坏，本公司给予免费修理或更换。

Under the conditions of the user comply product specifications as shown by the

provisions, from the date of delivery in 12 months due to poor quality or damage

product does not work normally, the company gives free repair or replacement. 2) 超过保修期规定的时间发生的机器故障，本公司负责修理，修理及配件费用由用户负

责。

Exceed the prescribed warranty time, machine breakdown, our company is

responsible for repair, but repair expenses and accessories for users. （二）不予保修范围：Not warranty range

1) 在保修期内，如因用户安装使用、操作不当引起的故障，本公司负责修理，但修理及

配件费用均由用户支付；

In warranty period, such as the fault of installation and improper operation of users, the company is responsible for repair, but the repair and accessories charges paid by

the users. 2) 产品的外观损坏，如油漆、镀层剥落等不予保修；

Product appearance damage such as painting, coating does not in warranty scope. 3) 在保修期内，产品发生故障后，请通知，由本公司维修人员到现场分析，确定处理意

见，未经本公司允许不应由他人拆装、检修，否则不予包修。

During the warranty period, after the damage of the product, please inform by our

company, maintenance personnel to the site analysis and makes disposal opinion, without the company allowance, others should not open it and repair, otherwise not

in warranty scope.

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4) 客户提供资料失误，选型不合理，所选机组超出其运行范围。

Clients provide fault material, unreasonable selection, beyond the unit machine

scope of operation. 5) 压缩机未安装各种安全保护装置或安全保护系统接线不正确，安全保护包括压缩机过

热保护、油压安全开关、高低压保护（水流控制器）等

The compressor does not install all safety protection devices or safety protection

system connection is not correct, safety protection include compressor overheating

protection, oil safety switch, high and low voltage protection (flow controller), etc

6) 系统配套件选用不当，如膨胀阀选择失误，电磁阀关闭不严或未装曲轴箱加热器，造

成压缩机“湿运行"损坏。

Improper selection system accessories such as improper expansion valves, solenoid

valve is not completely closed or not install crankcase heater may cause "wet

operation" damage. 7) 选用不合格的冷冻油、制冷剂。

Choose unqualified frozen oil, refrigerant. 8) 电压异常或缺相等供电原因。

Abnormal voltage power or supply shortage power reason. 9) 在此特别提醒购买者与使用者：当您购买本公司所出售的冷库设备时，如要自行安装

调试，安装及调试人员必须是专业制冷技术人员，并有一定的安装调试经验。

Here special remind buyers and users: When you purchase this company cold storage

equipments, if you want to install and debug by yourselves, it must need professional and

technical personnel, and refrigeration has certain installation debugging experience.

多联制冷机组说明书

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