CHM-DCY

WARNING

1.Earthing:
*Please ensure that the power outlet socket is properly earthed for maximum safety.

*Explosion hazard. Do not ground to a gas supply line. (as shown the figure)

2.For safety, always disconnect the pump from the mains for repair or maintenance .

3.The pump is strictly prohibited from immersing into the water. The antifreeze shall be applied if water temperature is below 4°C.

4.Never move the water pump by pulling or holding the power cord as it will cause breakage and short circuit. Please carry the water pump with both hands.

5.The water pump is designed to pump clear water only that is free from explosive substances and solid particles or fibre. Never use the pump for pumping flammables and /or explosive liquid such as gasoline, alcohol, etc. as it will cause explosion.

6.Installation and maintenance must be carried out by qualified personnel . Improper repair may cause personal injury and damage to the equipment. In addition, the product warranty shall be void due to wrong application.

7.If the power cord is to be extended or replaced, use only the same or higher wire specification. Please make sure connection is secured, waterproofed and fully insulated.

8.The manufacturer will not assume any liability in case of any modification to the water pump.

9. DO NOT DRY RUN (WITHOUT WATER SUPPLY) !

1. INFORMATION ON THE PUMP

Thanks for using our pump. Please read this user manual before installation. Installation and operation must comply with local regulations and accepted codes of good practices. Children shall not handle the appliance. Cleaning and maintenance shall not be made by unauthorized personnel.

Intelligent inverter pump provides constant water pressure for a variety of domestic and light commercial applications. The booster pump consists of pump, permanent-magnet VFD motor, diaphragm tank, pressure sensor and intelligent controller. The intelligent controller is integrated with motor speed control, all-in-one pump control, fault protection, and display screen. It is easy to install and to operate.

You can set your desired requirement on the control panel of our intelligent inverter pump. The pump can supply constant water pressure so that the user is no longer bothered by water pressure fluctuation due to a rise or fall in demand, or from start / stop function. The variable speed motor will save energy and noise reduction. Please keep this manual after reading it along with warranty card as reference.

1. Performance

1. Model

CHM4-2DCLW

CHM-Series Number
4- Rated Q.(m3/H)
2- Impeller Qty.
DC- Permanent magnet motor
L- LED touch screen
W- Wifi function

CHM2-2ZE

CHM-Series Number
2- Rated Q.(m3/H)
2- Impeller Qty.
Z- Self-priming
E- Withou top cover
L- LED touch screen
W- Wifi function

* LW means LED touch screen + WIFI, otherwise is button type controller without WIFI

WORKING CONDITIONS

PH Value: 5-8
Ambient Temperature : 0-40 °C
Ambient humidity : max. 85% (RH)
Liquid Temperature : 0-40 °C
(The maximum temperature of liquid shall not be over than 75 °C）

INSTALLATION DIMENSION

Guide to fill pump body with water
For newly installed pumps, make sure to completely fill the pump body and inlet with water before starting the pump.
Fill water to the pump body by following the instruction before starting the new pump.
“A. Open up the priming screw or outlet of pumps, fill the pump body until it is completely full.”
“B. Turn the power on to start the water pump. At this moment, do not have to tighten the priming screw as to accelerate discharge the air of the water pump. Generally the water pump can operate normally after 3 minutes. Then, tighten the priming screw.”
“C. If the water pump fails to pump water, the water inside the pump body may not be enough, In this case repeat the above operation.”

CHM-Z: Make sure the pump body is completely fill with water from priming screw or outlet
CHM-DC: Make sure the pump body and inlet pipe are completely fill with water from outlet when the outlet check valve is lifted.

7 APPLICATION

Pump water from well or main pipe

8 CONTROLLER PANEL

Button Type Controller panel

1. Display Screen
2. On/Off Button
3. Setting Button
4. Adjustment Button
5. Manual Stop Indicator
6. Running Indicator

Reminders

After the pump is powered on, no operation for five minutes will automatically lock the button (except the start/stop button). Please press the plus or minus button at the same time to unlock it.

Note: The default values of the pump parameters are the optimal values to meet the majority of customers, usually do not need to modify the settings, if necessary, should be carried out under the guidance of professionals, otherwise some of the losses caused by the user to bear their own.

Button/ Indicator	Function
Display screen	A sequential fast showing of factory settings will be displayed.  “Factory code (PLD)” > “Power” > Control board version number (such as u01) > Display board version number (such as U01) at the beginning when power is turn on.
	(e.g. :PLD > 0.75 > u01>U01).
	1. at Automatic mode, the real-time pressure value of the water pipe is displayed. (e.g.: 2.00 means 2bar)
	2. at Manual mode, the frequency value is displayed. (e.g.: L50 means 50HZ)
	3. The setting item or parameter value is displayed during setup.
	4. Warning code is displayed when the pump or controller is faulty
	1. Switch on/off the pump manually.
	2. Press and hold for 3 seconds to switch the working mode of manual/automatic.
	2.1 Manual mode is displaying the frequency (e.g.: L50 means 50HZ)
	2.2 Automatic mode is displaying the real-time pressure (e.g.: 2.00 means 2bar)
SET	1.  Enter setting menu.
	2.  Selection of the setting ( b1 to b17) display on the screen.
	3.   Save the setting value.
+  –	1.  Lock/unlock the controller panel: press + and – together at the same time.
	2.  Set the working pressure: press + or – to adjust the working pressure value at automatic working mode.
	3.  Set the motor speed: press + or – to adjust the motor speed value as frequency at manual working mode.
	4.  Toggle setting items on setup menu.
Manual Stop Indicator	The indicator light flashes to indicate that the pump has been manually stopped.
	Therefore, the pump must be started manually when the indicator light is flashing.
	The indicator light is always on when the pump is running or in automatic working mode.
RUNNING INDICATOR	RUN:
	Light permanently on: Pump is running and the pressure is same as the set working pressure value;
	Light flashing on: Pump is running but the pressure lower than the set working pressure value;
	Light off : Pump is not running.

CONTROLLER SETTING AND OPERATION
A. Press + and – together to unlock/lock the controller.
B. Press the + or – to set the working pressure of the pump. Then the pump can automatically work according to set pressure.
C. Press SET enter setup menu.
D. Press SET to save setting value.

Range : Setting value range
FS: Factory Setting

	b01 [Range : 10-90%, FS:80%]
	Set the start pressure value.
	The pump will be automatically started at the percentage below the  working pressure value.
	E.g.: the pressure setting is 2bar, the start pressure is 2barx80%=1.6bar.
	Navigation: Press         > “b01” >            > Adjust digit [10~90] >          to save or wait for 20s it will be saved automatically
	泵的启动工作压力与泵设定工作压力的百分比可设定  (设置范围在10 -90%之间)   ， 按加减键一 次数值变化1； 出厂设定值为80；
	b03 : [Range: 0-Start pressure, FS:0.5 bar]
	Water shortage protection value, if the working pressure falls lower than the set value, pump will stop functioning.
	After shortage protection, the pump will start at interval of 1H,2H,4H,8H.
	The pump will start immediately when the main pipe restore water supply.
	Navigation: Press  “SET”      > “ + ”     or   “  – ”    >  “b03” >    “SET”     > Adjust digit [ 0 ~ start pressure] > “SET”    to save or wait for 20s it will be saved automatically
	管 路 缺 水 判 定 的 压 力 值 可 设 定 ，按 加减键 一 次 数 值 变 化 为0 . 05kg f/c m²，   出 厂 设 定 值 为0 . 5 kgf/cm²；设置值为0时 ，缺水判定功能失效  (注：持续缺水 ，缺水后重   启时间分别为1小时、2小时、4小时、8小时；   自来水管道来水立即重启)   ；
	b04 : [Range:10-180 second, FS:180]
	The time taken for pump to stop working when it is dry run.
	Navigation: Press  “SET”     >  “ + ”     or   “  – ”   >  “b04” >   “SET”     > Adjust digit [10 ~ 180] >  “SET”    to save or wait for 20s it will be saved automatically
	缺水判定时间值可设定(设定范围为10 – 180秒可调)，  按加减键一 次数值变化1秒， 出厂设定值为180秒；
	b05 : [00 : ON 01: OFF FS :00]
	Open or close the automatic protection function when the pump working pressure has erratic fluctuation.
	Navigation: Press “SET”    > “ + ”     or   “  – ”   >  “b05” >   “SET”     > Adjust digit [00 or 01] > “SET”      to save or wait for 20s it will be saved automatically
	00–通过压力波动判断缺水有效 ，01–取消压力波动大判定缺水 ， 出厂设定值为00；
	b06 : [ 00 : Pressure (Bar)  01 : Head (Meter), 02 :Motor Speed（RPM) ,03:Water Temperature(℃) ,04: Power (kw),  FS:00 ]
	Set the real-time displaying item.
	Navigation: Press “SET”     > “ + ”     or   “  – ”   >  “b06” >    “SET”     > Adjust digit [00 ~ 04] > “SET”     to save or wait for 20s it will be saved automatically
	00–管路实时压力 ，01–实时扬程  (单位：m)  02–实时转速  (单位：r/min)   ， 03–实时水温  (单位：℃)   ，04–实时功率 ，显示为Px.xx  (单位：kW)   ；
	b07 : [Range : 10-50, FS:30]
	This setting should be reduced when the water outlet of the pump is closed and not easy to stop, and increased when the pump is stopped by mistake during operation.
	Navigation: Press “SET”     >“ + ”     or   “  – ”   >  “b07” >  “SET”      > Adjust digit [10 ~ 50] >  “SET”     to save or wait for 20s it will be saved automatically
	当电泵出水端关闭不易停机时， 需减小该设置值； 当电泵运行过程中出现误判停 机时， 需增大该设置值 ，调节范围10 – 50， 出厂设定值为30。
	B14 : [00 : OFF 01: ON FS :01]
	Switch the function of anti-freeze protection.
	Navigation: Press “SET”    > “ + ”     or   “  – ”   >  “b14” >   “SET”     > Adjust digit [00 or  01] >   “SET”      to save or wait for 20s it will be saved automatically
	防冻功能开启/停用 。00 –停用 ，01 –开启 ，出厂设定值为01；
	B15:[Range: -10 ℃ ~ +10 ℃  FS: 5 ℃ ]
	To set the starting temperature of anti-freezing protection.
	The pump will automatically start when the water temperature in pump body drop to this setting value and stop when the temperature up to B16 setting.Prevent the water in pump from freezing to broken pump body. It is based B14 setting Enable (“00”)
	Navigation: Press  “SET”     > “ + ”     or   “  – ”  ” >  “b15” >    “SET”     > Adjust digit [-10  ~  15] > “SET”      to save or wait for 20s it will be saved automatically
	低水温电泵运转控制参数， 防冻功能开启时可以修改 ，调节范围为- 10℃至10℃ ， 出厂默认值为5℃ ，当水温低于该值时 ，①电泵在保压待机或手动停机情况下强制 启动以1800r/min转速持续运转 ，直至泵腔温度达到b1 6  ( 20℃至40℃)  设置的阀 值 ，泵转为停机状态 。②电泵在“泵工作状态”情况下 ，维持“泵工作状态”不变。
	B16:[Range: +20 ℃ ~ +40 ℃  FS: +30 ℃ ]
	Set the stop temperature of anti-freezing protection.
	When the pump is started due to the activation of anti-freezing protection. It will automatically stop when the water temperature is up to this setting value. It is based B14 setting Enable (“00”)
	Navigation: Press “SET”     > “ + ”     or   “  – ”   >  “b16” >  “SET”      > Adjust digit [20  ~  40] >   “SET”     to save or wait for 20s it will be saved automatically
	电泵停机温度参数 ，防冻功能开启时可以修改 ，调节范围为20℃至40℃ ，出厂默认 值为30℃ ，当水温达到该值时 ，泵转为停机状态；
	B17 [Range: 40℃ ~ 130 ℃  FS: 75 ℃ ]
	Setting the protection of water temperature.
	When the water temperature exceeds this setting, the pump will stop for protection.After protection, the pump will automatically start when the water temperature is dropped 2℃ from the protection temperature.
	Navigation: Press “SET”     > “ + ”     or   “  – ”   >  “b17” >    “SET”     > Adjust digit [40  ~  130] >  “SET”      to save or wait for 20s it will be saved automatically
	泵腔保护温度值 ，调节范围【 40 , 130】   ，默认75℃； 当泵腔温度超过此设定值时， 停机； 当泵腔温度比该设定值小2℃时， 电泵恢复运行。

LED touch screen controller panel

Button/ Indicator	Function
Display screen	A sequential fast showing of factory settings will be displayed.  “Factory code (PLD)” > “Power” > Control board version number (such as u01) > Display board version number (such as U01) at the beginning when power is turn on.
	(e.g. :PLD > 0.75 > u01>U01).
	1. at Automatic mode, the real-time pressure value of the water pipe is displayed. (e.g.: 2.00 means 2bar)
	2. at Manual mode, the frequency value is displayed. (e.g.: L50 means 50HZ)
	3. The setting item or parameter value is displayed during setup.
	4. Warning code is displayed when the pump or controller is faulty
	1.Click to select working mode:
	Booster-Up  Booster-Down  Filling the tank.
	2.Press MODE for 3 seconds, all factory set parameters shall be restored.
	1.  Enter setting menu.
	2.  Selection of the setting ( b1 to b7) display on the screen.
	3.  Save setting parameters.
	4.  WIFI connection button
	1.  Lock/unlock the controller panel: press + and – together at the same time.
	2.  Set the working pressure: press + or – to adjust the working pressure value.
	3.  Toggle setting items on setup menu.
	1. Switch on/off the pump manually.
	2. Long press for continuous running of the pump.
	3. Resetting.
	Select the mode filling the tank. Then make selection on time interval.
	Selection of time interval for filling the tank.
	Light off : Timing mode is turned off.
	Power indicator
	Light on indicates the power is on.
	Light off indicates the power is off.
	RUN:
	Light permanently on: Pump is running and the
	pressure is same as the set working pressure value;
	Light flashing on: Pump is running but the pressure
	lower than the set working pressure value;
	Light off : Pump is not running.
	FAULT: Warning light
	Light on means the pump has fault or working abnormally.
	The screen will display the warning code. When you have
	eliminated the fault or the fault disappears by itself, the
	light will be turned off automatically.
	DRY RUN (Lack of water supply)
	Light on means the pump stopped with no water supply.
	When you have eliminated the fault or the fault disappears
	by itself, the light will be turned off automatically.
	Working Mode Indicator:
	Light on indicate the current working mode.
	Light on means the outlet pipe has leakage. It is a
	warning light and the pump is still working normally.
	When you have eliminated the fault or the fault
	disappears by itself, the light will be turned off
	automatically.
	b01 [Range : 10-90%, FS:80%]
	Set the start pressure value.
	The pump will be automatically started at the percentage below the  working pressure value.
	E.g.: the pressure setting is 2bar, the start pressure is 2barx80%=1.6bar.
	Navigation: Press “SET”   > “b01” >   “SET”   > Adjust digit [10~90] >  “SET”     to save or wait for 20s it will be saved automatically
	泵的启动工作压力与泵设定工作压力的百分比可设定  (设置范围在10 -90%之间)   ， 按加减键一 次数值变化1； 出厂设定值为80；
	B02 : [00 : Positive 01 : Reverse, FS:00]
	Adjust motor rotating direction. This parameter setting must stop the motor to adjust.
	Positive rotation for WZB and LDB-Z series are clockwise when view from fan cover side.
	Positive rotation for CHM and LDB-M series are counterclockwise when view from fan cover side.
	Navigation: Press  “SET”      > “ + ”     or   “  – ”    >  “b03” >    “SET”     > Adjust digit [ 0 ~ start pressure] > “SET”    to save or wait for 20s it will be saved automatically
	b03 : [Range: 0-Start pressure, FS:0.5 bar]
	Water shortage protection value, if the working pressure falls lower than the set value, pump will stop functioning.
	After shortage protection, the pump will start at interval of 1H,2H,4H,8H.
	The pump will start immediately when the main pipe restore water supply.
	Navigation: Press  “SET”      > “ + ”     or   “  – ”    >  “b03” >    “SET”     > Adjust digit [ 0 ~ start pressure] > “SET”    to save or wait for 20s it will be saved automatically
	管 路 缺 水 判 定 的 压 力 值 可 设 定 ，按 加减键 一 次 数 值 变 化 为0 . 05kg f/c m²，   出 厂 设 定 值 为0 . 5 kgf/cm²；设置值为0时 ，缺水判定功能失效  (注：持续缺水 ，缺水后重   启时间分别为1小时、2小时、4小时、8小时；   自来水管道来水立即重启)   ；
	b04 : [Range:10-180 second, FS:180]
	The time taken for pump to stop working when it is dry run.
	Navigation: Press  “SET”     >  “ + ”     or   “  – ”   >  “b04” >   “SET”     > Adjust digit [10 ~ 180] >  “SET”    to save or wait for 20s it will be saved automatically
	缺水判定时间值可设定(设定范围为10 – 180秒可调)，  按加减键一 次数值变化1秒， 出厂设定值为180秒；
	b05 : [00 : ON 01: OFF FS :00]
	Open or close the automatic protection function when the pump working pressure has erratic fluctuation.
	Navigation: Press “SET”    > “ + ”     or   “  – ”   >  “b05” >   “SET”     > Adjust digit [00 or 01] > “SET”      to save or wait for 20s it will be saved automatically
	00–通过压力波动判断缺水有效 ，01–取消压力波动大判定缺水 ， 出厂设定值为00；
	b06 : [ 00 : Pressure (Bar)  01 : Head (Meter), 02 :Motor Speed（RPM) ,03:Water Temperature(℃) ,04: Power (kw),  FS:00 ]
	Set the real-time displaying item.
	Navigation: Press “SET”     > “ + ”     or   “  – ”   >  “b06” >    “SET”     > Adjust digit [00 ~ 04] > “SET”     to save or wait for 20s it will be saved automatically
	00–管路实时压力 ，01–实时扬程  (单位：m)  02–实时转速  (单位：r/min)   ， 03–实时水温  (单位：℃)   ，04–实时功率 ，显示为Px.xx  (单位：kW)   ；
	b07 : [Range : 10-50, FS:30]
	This setting should be reduced when the water outlet of the pump is closed and not easy to stop, and increased when the pump is stopped by mistake during operation.
	Navigation: Press “SET”     >“ + ”     or   “  – ”   >  “b07” >  “SET”      > Adjust digit [10 ~ 50] >  “SET”     to save or wait for 20s it will be saved automatically
	当电泵出水端关闭不易停机时， 需减小该设置值； 当电泵运行过程中出现误判停 机时， 需增大该设置值 ，调节范围10 – 50， 出厂设定值为30。
	B14 : [00 : OFF 01: ON FS :01]
	Switch the function of anti-freeze protection.
	Navigation: Press “SET”    > “ + ”     or   “  – ”   >  “b14” >   “SET”     > Adjust digit [00 or  01] >   “SET”      to save or wait for 20s it will be saved automatically
	防冻功能开启/停用 。00 –停用 ，01 –开启 ，出厂设定值为01；
	B15:[Range: -10 ℃ ~ +10 ℃  FS: 5 ℃ ]
	To set the starting temperature of anti-freezing protection.
	The pump will automatically start when the water temperature in pump body drop to this setting value and stop when the temperature up to B16 setting.Prevent the water in pump from freezing to broken pump body. It is based B14 setting Enable (“00”)
	Navigation: Press  “SET”     > “ + ”     or   “  – ”  ” >  “b15” >    “SET”     > Adjust digit [-10  ~  15] > “SET”      to save or wait for 20s it will be saved automatically
	低水温电泵运转控制参数， 防冻功能开启时可以修改 ，调节范围为- 10℃至10℃ ， 出厂默认值为5℃ ，当水温低于该值时 ，①电泵在保压待机或手动停机情况下强制 启动以1800r/min转速持续运转 ，直至泵腔温度达到b1 6  ( 20℃至40℃)  设置的阀 值 ，泵转为停机状态 。②电泵在“泵工作状态”情况下 ，维持“泵工作状态”不变。
	B16:[Range: +20 ℃ ~ +40 ℃  FS: +30 ℃ ]
	Set the stop temperature of anti-freezing protection.
	When the pump is started due to the activation of anti-freezing protection. It will automatically stop when the water temperature is up to this setting value. It is based B14 setting Enable (“00”)
	Navigation: Press “SET”     > “ + ”     or   “  – ”   >  “b16” >  “SET”      > Adjust digit [20  ~  40] >   “SET”     to save or wait for 20s it will be saved automatically
	电泵停机温度参数 ，防冻功能开启时可以修改 ，调节范围为20℃至40℃ ，出厂默认 值为30℃ ，当水温达到该值时 ，泵转为停机状态；
	B17 [Range: 40℃ ~ 130 ℃  FS: 75 ℃ ]
	Setting the protection of water temperature.
	When the water temperature exceeds this setting, the pump will stop for protection.After protection, the pump will automatically start when the water temperature is dropped 2℃ from the protection temperature.
	Navigation: Press “SET”     > “ + ”     or   “  – ”   >  “b17” >    “SET”     > Adjust digit [40  ~  130] >  “SET”      to save or wait for 20s it will be saved automatically
	泵腔保护温度值 ，调节范围【 40 , 130】   ，默认75℃； 当泵腔温度超过此设定值时， 停机； 当泵腔温度比该设定值小2℃时， 电泵恢复运行。

7、 Working pressure setting

Calculation of Working Pressure Value:
P– Working Pressure Value (Pump Head)
H– The vertical height between the pump outlet and the highest point of use; ( 1.0kgf/cm² ≈ 10m)
P=H/10+1.0kgf/cm2

PRECAUTIONS
“1. Whenever possible, install the water pump in shady, cool and dry area. If the water pump is to be used in the open area, don’t expose it to direct sunlight. Otherwise it will cause damage to the water pump and cause electrical hazard.”
“2. When used in shady area, it is recommended to install Y Type filter onto the suction pipe to prevent the sand from entering the pump body.”
“3. In winter freezing areas, make sure to turn on the anti-freeze function and keep the pump connected to the power supply. Do not cover the fan cover and heat sink of the motor with insulation material, which will cause poor ventilation and heat dissipation and cause a fire. When the pump is out of use, the water in the pump should be drained.”
4. When there is a heating system in the water supply line, it will produce a certain amount of water vapor, which may affect the use of the pump, it is recommended to install a pressure relief valve.

OPERATION AND MAINTENANCE
“1. Before starting the water pump, ensure that the power cord is properly connected, the voltage is correct, and all suction pipe and discharge pipe are well connected and sealed.”
“2. The relevant technical data of the water pump are indicated on the nameplate for reference.”
“4. If the pump is not used for long time, disconnect the power supply, drain the water and clean the pump body, store the water pump in shady, cool and dry area. When restart, if the water pump can’t operate normally, remove the fan cover and turn the fan manually until the fan can rotate smoothly”
“5. After 2000 hours of normal use, the pump should be maintained.”
“6. Rust-proof function: If the pump is in the power-on state and the pump has not been used for a long time, it will automatically run for 30 seconds every 24 hours to avoid pump body rust jamming the impeller.”

COMMON FAULTS AND TROUBLE SHOOTING METHODS

SPECIAL NOTE

1.The pump will be automatically protected and shut down when the pipeline is shortage of water during the operation. When the water supply is restored , it will restart and continue to work automatically.

2.The controller is used to pressurize the tap water pipeline. When the pipeline pressure is higher than the starting pressure of the pump, pump does not start. When the pipeline pressure is less than the pump starting pressure, the pump starts to work.