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空气源热泵常见故障分析

添加时间：2017/9/2 17:37:11 浏览次数：

相序、缺相、逆相保护
Phase sequence, lack phase, inverse phase protection
故障分析：
Failure analysis:

1、用万用表检测电路板进电的3相电源相与相之间是否都有380V电压，如有则故障可能是逆相保护,将接入机组的电源相邻的两根进线对调即可；
1, the multimeter test circuit board into electricity whether have between three phase power supply phase phase 380 v voltage, if there are faults may be inverse phase protection, will access unit power switch adjacent into thread;

2、否则故障可能是缺相保护，检查接入电源或接入线是否可靠。
2. Otherwise the failure may be lack of phase protection and check whether the access power or access line is reliable.

3、在电网维修后或自备发电设备输电品质不佳时也会有此故障出现(电源相与相电压应在380V±10％范围内）。
3. It will also occur when the power transmission quality of power generation equipment is not good after maintenance of the power grid (power supply phase and phase voltage shall be within 380V plus or minus 10%).

水流保护
Water protection
故障分析：
Failure analysis:

1、检查水流开关工作是否正常；
1. Check whether the water switch work is normal;

2、未安装水流开关的检查短接线是否正常。
2. Check whether the short wiring of the current switch is normal.

出水过热保护
Water overheat protection
故障分析：
Failure analysis:

1、水箱实际温度是否超过设定温度；
1. Whether the actual temperature of the tank exceeds the set temperature;

2、水箱传感器放置位置不正确或水箱传感器与盲管壁没有接触紧密。
2. The position of the tank sensor is incorrect or the water tank sensor is not close to the blind wall.

3、水箱温度传感器连线断线或温度传感器阻值漂移。
The temperature sensor of the tank is disconnected or the temperature sensor is drifting.

高压保护
High voltage protection
故障分析：
Failure analysis:
通过压力表确认系统高压压力确实过高，则水路有故障：
The pressure gauge confirmed that the pressure of the system was too high.

1、循环水泵实际流量偏小。
1. The actual flow of circulating pump is small.

2、水路中阀门或过滤器堵塞。
2. Blocked valves or filters in waterways.

3、阀门没完全打开。
The valve is not fully open.

4、水温设置过高。
4. Excessive water temperature setting.

5、换热器结垢堵塞。
5. The heat exchanger has fouled up.

6、水系统中有空气。
There is air in the water system.

7、水系统中缺水。
Lack of water in the water system.

通过压力表确认系统高压压力没达到报警压力，则检查压力开关接线是否可靠，将接线插重新拔插可靠。停机后用万表用检测高压压力开关是否导通，如不导通则可能是压力开关坏。
The pressure gauge is confirmed to ensure that the pressure of the pressure is not met, then check whether the connection of the pressure switch is reliable. After the stop, use ten thousand meters to check whether the high-pressure pressure switch is connected, if not guide, the pressure switch may be bad.

低压保护
Low voltage protection
故障分析：
Failure analysis:

1、检查机组是否化霜不良，机组翅片结霜严重。
1. Check whether the unit is defrosted and the aircrew has severe frost.

2、低于0.5MPa 重点查找氟路是否有泄漏点或堵塞。
2. Lower than 0.5mpa to find out whether the fluorine path has leaks or blockages.

3、高于0.5MPa 重点检查低压保护开关及膨胀阀。停机后用万表用检测低压压力开关是否导通，如不导通则可能是压力开关坏。
3. Higher than 0.5 MPa to check the low pressure protection switch and expansion valve. After the stop, use ten thousand meters to check whether the pressure switch with low pressure is connected, if not guide, may be the pressure switch is bad.

排气温度过高保护
Excessive exhaust temperature protection
故障分析：
Failure analysis:

1、机组运转状态下，查询排气温度是否超过120℃：排气温度不高可能是排气温度传感器坏、接触不良或者是电路板损坏
1, the unit operation condition, the query whether the exhaust temperature over 120 ℃, the exhaust temperature is not high probably exhaust temperature sensor, poor contact, or a bad is the damage of circuit board

2、排气温度过高，则检查高低压是否正常、膨胀阀是否微堵或制冷剂微漏（漏点处一般有油渍）,必要时更换膨胀阀或重新补焊。
2. If the exhaust temperature is too high, check whether the high and low pressure is normal, whether the expansion valve is micro-blocked or the refrigerant microleak (the leakage point is generally oily), replace the expansion valve or resolder when necessary.

水位开关故障
Water level switch failure
故障分析：
Failure analysis:

1、高低水位接反。
1. The high and low water level will reverse.

2、低水位装置接线接触不良。
2. Poor connection of low water level device.

3、主板故障。
3. Main board failure.

通讯故障
Communication failures
故障分析：
Failure analysis:

1、屏蔽线中途断开、两端接插时接触不良。可通过重新插拔、更换控制面板、屏蔽线、电路板判断故障点。
1. Disconnection of the shield line and the contact at both ends. The fault point can be determined by replugging, replacing control panel, shielding wire and circuit board.

2、控制板受潮所致。
2. The control board was caused by moisture.

3、通讯线不是用的铜芯线
3. The communication line is not used for copper conductor

温度传感器故障
Temperature sensor failure
故障分析：
Failure analysis:

1、此故障表明相应温度传感器要么短路、要么断路。检查相对应传感器探头电阻，在温度为25℃ 时此传感器正常阻值为5kΩ左右（排气温度传感器为80℃，50kΩ）。
1. This fault indicates that the corresponding temperature sensor can either short-circuit or break down. Check the corresponding sensor probe resistance, in normal temperature is 25 ℃ when the sensor resistance is about 5 k Ω (exhaust temperature sensor is 80 ℃, 50 k Ω).

2、如阻值正常再重新插拔确认无误后还不行则可判断为电路板故障。
2. If the resistance is normal and reinserted after confirmation, it can be judged as a circuit board failure.

控制面板显示屏上无显示
No display on the control panel display
故障分析：
Failure analysis:

1、电源故障，没有电 —— 检查电源，排除故障。
1. Power failure, no power - check power, troubleshooting.

2、电控板变压器故障 —— 更换同规格变压器。
2. Transformer fault of electronic control board -- replace the same specification transformer.

3、机组保险丝熔断 —— 更换同规格保险丝。
3. Fuse of the unit fuse - replace the same size fuse.

4、低水位没闭合 —— 将水补到超过低水位，使其闭合。
4. The low water level is not closed - the water is filled to exceed the low water level to make it close.

5、如主板电源正常，则需检查通讯线是否为断路。主板或显示板零部件损坏。
5. If the main power supply is normal, it is necessary to check whether the communication line is broken. Damage to the main board or display board parts.

水温上升缓慢
Water temperature rise slowly
故障分析：
Failure analysis:

1、保温层安装质量不合格；隐蔽保温部分没有做好；保温不连续；回水常开。——引起热量流失大。
1. The installation quality of insulation layer is unqualified; The hidden insulation part is not well done; The insulation is discontinuous; Backwater often opens. -- causes heat loss.

2、热水用水量过大引起大量冷水补入，导致机组能力跟不上水温上升的需求。
2. Excessive water consumption caused a lot of cold water to fill in, resulting in the ability of the crew to keep up with the rising temperature.

3、机组系统不正常，检查系统各参数是否正常
3. The unit system is not normal, check whether the system parameters are normal

主机不运转
Main engine not running
故障分析：
Failure analysis:
1、电源故障——查明原因解决电源问题
1. Power failure - identify the cause of power supply problems

2、压缩机接触器坏——更换接触器
2. The compressor contact device is broken - replace the contactor

3、接线松脱 ——紧固松脱点
3. Loose connection - tighten loose point

4、压缩机过热保护 ——查明热因后开机
4. Compressor overheat protection - find out the hot cause after starting up

5、水流量不足——清洗过虑器，排出空气等
5. Insufficient water flow -- cleaning the filter and discharging air

机组制热能力偏低
The thermal power of the unit is low

故障分析：
Failure analysis:

1、空气换热器散热不良 ——清洗空气换热器
1. The air heat exchanger is not cool - clean the air heat exchanger

2、水流量不足——清洗过滤器
2. Insufficient water flow -- cleaning strainer

3、制冷剂注入量不足——检漏并注入定量工质
3. Inadequate injection of refrigerant - leakage and injection of quantitative work

4、风机电机坏，蒸发器结霜严重。
4. The fan motor is broken and the evaporator is frosted.

除霜不干净
Defrost is not clean

故障分析：
Failure analysis:

1、盘管探头脱落 ,检查盘管探头感温位置是否准确,是否损坏。
1. The coil probe is off, and check whether the temperature of the probe is accurate and not damaged.

2、除霜参数设置不准确,重新调整好除霜参数。
2. The defrost parameter setting is inaccurate and the defrost parameters are adjusted.

3、系统缺少冷媒。
3. The system lacks cold media.

风扇不转
Fan does not turn

故障分析：
Failure analysis:

1、风扇紧固螺钉松脱——紧固松脱螺钉
1. Fan fastening screw loose - fastening loosen screw

2、风扇电机烧毁 ——更换或修理风机
2. Fan motor burn - replace or repair the fan

3、接触器坏——更换接触器
3. The contactor is broken - replace the contactor

4、风机电容坏 ——更换电容
4. The fan capacitance is broken - replace capacitance

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