Smartgen Hwp30n Forced Circulation Heater User Manual

HWP30N Forced Circulation Heater
User Manual

HWP30N/HWP40N FORCED CIRCULATION HEATER
USER MANUAL

SmartGen — make your generator smart
SmartGen Technology Co., Ltd.
No.28 Jinsuo Road, Zhengzhou, Henan Province, China
Tel: +86-371-67988888/67981888/67992951
+86-371-67981000(overseas)
Fax: +86-371-67992952
Web: www.smartgen.com.cn/
www.smartgen.cn/
Email: [email protected]

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SmartGen reserves the right to change the contents of this document without prior notice.
Table 1 Software Version

OVERVIEW

HWP30N/HWP40N is a smart forced circulation water heater of an engine. When engine operation temperature is below 4ºC, engine liquid coolant/lubricating oil may be coagulated to a solid state in starting phase and lose lubrication or cooling effects, so that it may damage the engine. Therefore, a heater shall be installed for the engine to ensure normal starting and running.
It has a lamp indication function, which can indicate all kinds of heater statuses. The heating temperature can be set by users, and dry burning prevention and overheating protection are fitted.
This product is suitable for various engines with (15~30)L displacement.

PERFORMANCE AND CHARACTERISTICS

• Microprocessor design is applied for the control part, and precise temperature sampling and heating temperature can be set from the control panel.
• A 4-bit digital tube display is applied, which can display current coolant temperature, user-defined temperature, accumulated running time, accumulated energy consumption, current-voltage parameters, etc.
• The water flow sensor is fitted, which can quickly detect shortage of water, pipe gas gathering, pipe clog, in order to prevent the heater from dry burning, gas gathering, etc. unhealthy phenomenon.
• The circulation pump and heater are controlled separately; the water pump is firstly started before heating, and then the heater starts after a delay of 5s; when it reaches pre-set temperature point, the heater power is disconnected immediately; then the water pump power is cut off after delaying for the 60s; this is to prevent heat gathering so that it can prolong pump life.
• A manual test function is fitted, which can check whether the heating body and water pump are able to operate normally through the panel button.
• Fine cast aluminum material is used for the heater shell. Stainless steel inner heating pipes. A water drain valve is fitted at the bottom of the heater, which can be used on demand.
• This product can work normally at -40ºC temperature.

SPECIFICATION

Table 2 Parameter Specification

HEATER INSTALLATION

Please install the heater vertically according to the diagram before use. Pay attention to the direction of the heater inlet and outlet, and ensure that the heater position is below the lowest water level of the engine and that all the air is exhausted out of the heater. Perfuse the heater with coolant.

Fig.3 Incorrect Pipe Connection Methods
NOTE: If there is a W-shaped bend or reverse U-shaped bend during pipe connection, the air accumulated in the pipe cannot be discharged normally, resulting in the liquid cannot be circulated properly. The air dissolved in the liquid will be precipitated during heating and retained in the bend, so on the condition of an unsmoothed pipeline, even if by the manual exhaust, it will repeat in the next heating process of air collection. To ensure that smooth liquid circulation, the hosepipe with an inner diameter of more than 20mm and pipe joints with an inner diameter of more than 15mm should be selected.

OPERATING INSTRUCTIONS

5.1 BUTTON DESCRIPTION
Table 3 Button Descriptions

Button	Definition	Description
	Heating	Press and if the coolant temperature is below the set cut-off temperature, the heater will transfer to auto status; If the coolant temperature is above the set cut-off temperature, the heater works for 15s and enters auto status after commissioning.
	Stop	Press and heater will stop.
	Set	Press and enter the parameter setting menu.
	Up	Display the last digital cube content and do value adjustments.
	Down	Display the next digital cube content and do value adjustments.

5.2 INDICATOR DESCRIPTION

5.3 DISPLAY ILLUSTRATION

Table 5 Display Illustration

Sign	Definition	Description
	Cut-off Temperature	The set value of target temperature.
	Reset Temperature	The set value of reset temperature.
	Current Voltage Value	It is current power voltage when V indicator is light on.
	Accumulated Running Time	It is total running time when the 10×Hour indicator is light on; the unit is an hour, detailed hours are the displayed number x10; e.g. displayed number is 1234, and the actual hours are 12340.
	Accumulated Energy Consumption	It is total energy consumption when the 10×kWh indicator is light on; unit is kWh; detailed kWh is the displayed number x10; e.g. displayed number is 456.7, and the actual kWh is 4567.
	Dry Burning Temperature Sensor Enable	00: Disable;  01: Enable.
	Voltage Protection Enable	00: Disable;01: Enable.
	Start Mode	00: Power on manual start mode; 01: Power on auto start mode; 02: Keep the work mode before power off.

5.4 FAULT CODE Sign
Table 6 – Fault Code

Sign	Definition	Description
	Fault Code 1	Dry burning/water shortage protection.
	Fault Code 2	Water temperature sensor open circuit.
	Fault Code 3	Dry burning temperature sensor open circuit.
	Over Voltage	Enters standby status when the input voltage is over 264V.
	Under Voltage	Enters standby status when the input voltage is over 200V.

5.5 OPERATION PANEL
5.6 OPERATION DESCRIPTION
5.6.1 PARAMETER CHECK
Press and to switches over the digital cube display and do value adjustment.
5.6.2 COMMISSIONING
If water temperature is above pre-set reset temperature, press and heater will enter commissioning status, and it will transfer to auto status after heating for 10s.
5.6.3 PARAMETER SETTING
Press and enter the parameter setting menu, and it will display (H means the set temperature is a cut-off temperature value, 40ºC is only an example). Press again to enter the setting, and adjust values by and . Press again to move or confirm. Press and it will go back to the main menu. It will also return back to the first page if there is no operation within 1 minute.

USE AND MAINTENANCE

1. After it is connected with power, the heater is at a stop state. Press Auto/Heat and make the heater enter working status.
2. When it needs to be checked/fixed or change pipe or some part, press Stop and make the heater enter stop status.
3. Before starting please confirm whether the heater is fully filled with coolant and make gas in the pipe exhausted by the vent valve.
4. It is strongly suggested to use antifreeze with a corresponding mark number.
5. If ordinary water is used, users must drain the water after stopping when the environment temperature is below 0ºC, in order to prevent the water in the heater from getting frozen and resulting in heater fracture.
6. GND wire must be earth connected.
7. Drain valve: Can be opened or closed using a hexagonal wrench, adjustable wrench, or a cross screwdriver.

Common Faults and Solutions:

1. Overheat protection:
   a. Check the valve to assure whether it is opened and whether the heater is full of water;
   b. Check whether the hosepipe has an obvious W-shaped or reverse U-shaped trend and whether there is an obvious hot and cold alternating area. Solutions: Shorten the hosepipe length and optimize the hosepipe trend.
2. High water outlet temperature: It occurs when the hosepipe is too long, both the inner diameter of the hosepipe and the inner diameter of the fitting joints are too small, as well as the water flow is not smooth so the heat cannot be transferred properly. Solutions: Shorten the hosepipe length, using the hose with an inner diameter of more than 20mm, and the connectors with an inner diameter of more than 15mm.
3. Cannot reach the preheating temperature:
   a. The heater power is not enough;
   b. The cable of the power supply is too long and results in the dividing resistance of the cable.

Solutions:

1. Replace the heater whose power matches the engine;
2. Shorten the power cable as possible and increase the cable diameter.

CASE DIMENSIONS

NOTE: All the inlets/outlet connectors are internal thread G 3/4.

PACKING LIST

Table 7 Pack List

Table 8 Water Gate Accessories

HWP30N/HWP40N Forced Circulation Heater
User Manual

References

• 众智科技
• 众智科技