Name: Instant Electric Water Heater DR07B(HYDRAULIC)
No.: DR07B (HYDRAULIC)
Specification:
1. The water heater adjust the power according to different waterfow to keep constant temperature outlet.
2.Special heating type and the efficiency exceed 95%, suitable to use in hotel,cottage etc where require lot of water.
3. Water pipe and cable can be hidden or visible installation.
|
Product parameters |
|
Rated voltage |
400V （240V 3N） |
|
Rated frequency |
50Hz |
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Rated power |
18kW |
21kW |
24 kW |
|
Rated current |
26A |
30A |
40 A |
|
Heating system |
Bare or tank heating element |
|
Diameter of cable |
4m㎡ |
4m㎡ |
6m㎡ |
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Switch on type |
Pressure difference switch |
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Switch on flow |
3L/Min(2.5 L/Min) |
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Temperature range |
Room temperature---65°C |
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System type |
Central water supply design, can supply multi-points at he same time |
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Fit water pressure |
0.1Mpa---0.6MPa |
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Waterproof grade |
IPX4 |
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Protection type |
I |
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Product net weight |
5 KGS |
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Product dimension |
38×23×8 CM |
Container QTY. "1020 PCS/20' 2310 PCS/40' 2310 PCS/40'HQ"
Instruction Manual
Introduction
Thank you for choosing our product.
Please read all of the instructions thoroughly before installing and operating this water heater. It will help you to master the use methods quickly and you can taste the enjoyment which top-quality life brings to you.
Our products have passed the International Quality System ISO9001 and they are in accordance with:IEC 60335-1:2004(Ed4.1) & IEC60335-2-35:2002,and other related standards.
We adopt advanced technology to produce our products and they have the advantages such as super high heating efficiency, high water pressure, safety and durability etc. Back heating design, allow to connect with water valve or water tap directly to the outlet. Our products are suitable for the location need hot water such as household, hotel, saloon, office, school and hospital. Ultra thin body, international fashionable design and beautiful appearance will make you go into the modern life.
Please contact the local dealer or our after-sales service department directly once there is any problem in the process of installation and operation. Our company will improve and innovate the products design and quality in future .If there is any change, it will not be informed.
Content
※Warning safety note ----------------------------------------------------------- 3
※Features and functions -------------------------------------------------------- 3
※Model introduction ------------------------------------------------------------- 3
※Structure introductions -------------------------------------------------------- 4
※Technology parameter and specification ------------------------------------ 5
※Safety information --------------------------------------------------------------- 6
※Installation instructions --------------------------------------------------------- 6
※Application methods ------------------------------------------------------------- 9
※Safety protection function ----------------------------------------------------- 10
※Maintenance --------------------------------------------------------------------- 10
※FAQ--------------------------------------------------------------------------------- 10
* Warning safety note:
Read the instruction manual carefully before instruction!
1.The spray head must be descaled regularly Do not switch on if there is a possibility that the water in the heater is frozen.
2.The outlet must not be connected to any tap or fitting other than those specified.
3.This appliance can be use by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance. Cleaning and user maintenance shall not be made by children without supervision.
4.If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
* Features and functions:
1.Adopt advanced technology. Instant hot water, high heating efficiency, bears high water pressure.
2.Back heating design, allow to connect with water valve or water tap directly to the outlet
3.Multiple safe protections for dry heating, overheating, high water pressure, creepage and so on.
4.Pure resistance load, no inductance, no electromagnetic radiation., environmental protection with no pollution.
5.Energy saving, start heating while the valve open, it is hardly lose any energy and the heating efficiency is up to 96%. Our products can save upwards of 30% electricity over the with tank water heater.
6.Adopt advanced water pressure induction flow switch, no water no heating, and never dry heating.
7.Optional power levels, can meet your seasons requirements, save electricity and economical for life.
8.Ultra thin body, fashionable design, beautiful appearance.
9.Easily to use, no need to reserve water, pre-heating, keep warm or wait. Usable once work.
10.Suitable for the location need hot water such as household, hotel, saloon, office, school and hospital
11.Startup with very low water pressure.
Note：
1.The first capital letter of the product code stand for the business division.
2.The second capital letter of the product code stand for the product category..
3. The third and fourth digits stand for the development time of the product, to distinguish different product from 01~99
4.The fifth capital letter of the product code stand for the difference of the design change,from A~Z.
5.The character in front of the symbol "-" is short for product coding, the character after the "-" is a product design parameters.
* Structure Introduction:
*Technology parameter and specification
|
Model No. |
DR02A-3N180D
DR02A-3N180J
DR07A-3N180D
DR07A-3N180J |
DR02A-3N210D
DR02A-3N210J
DR07A-3N210D
DR07A-3N210J |
DR02A-3N240D
DR02A-3N240J
DR07A-3N240D
DR07A-3N240J |
|
Rated voltage |
AC400V 3N～ |
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Rated frequency |
50Hz |
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Rated power |
18000W |
21000W |
24000W |
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Rated current |
26-30A |
30-32A |
35-40A |
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Waterproofing rate |
IPX4 |
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Switch on flow rate |
≥2.5L/MIN |
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Temperature range |
Normal temperature-75℃ |
Normal temperature-75℃ |
Normal temperature-75℃ |
|
Electric shock
protection class |
I |
I |
I |
|
Water pipe connector |
G1/2〞 |
G1/2〞 |
G1/2〞 |
|
Rated water pressure |
0.6MPa |
0.6MPa |
0.6MPa |
|
Start-up pressure |
0.1MPa |
0.1MPa |
0.1MPa |
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Diameter of cable |
4mm |
4mm |
4mm |
* Safety information:
1.The water heater must connect with earthing secured; it’s forbidden dismantling the earthing device.
2. It is forbidden to install and use the water heater invertedly .
3. The rated current of the power switch can not be less than the rated current of the water heater.
4. The device must be filled with water before power on when use for the first time or discontinued for a long time.
5. If the water in the device may be freezing, do not power on before confirm that the ice in the water heater has been thawy.
6. Shut off the power and turn off the inlet valve when you don't use the water heater.
7. If the power cord is damaged, it must be changed by the manufacturer or maintenance department or the professional person .
8. Shut off the power when the water heater is blocked and clean the inlet filter and outlet shower.
9. If the pressure of tap water exceed 0.6MPa, it should be installed a reducing valve at the inlet.
10. When the water temperature is 15 ℃, the water resistivity should be not less than 1300 Ω * cm.
11.The outlet of the water heater should be connected with an inlet hose according with IEC61770.
* Installation Instruction:
1.Please note following items before installing the water heater:
①Check the ammeter, wire sizes, fuse and the capacity of power switch carefully if they are qualified;
②The water heater must be installed vertically ,it should not be flatwise.
③For the position of the installation, please make sure that the power supply switch must be apart from the area of the showerhead insufflation.
2. Fix the panel.
Press the paper card of water heater on the wall and mark the screw holes by pencil, remove the card and drill the holes , then fix the panel by expansion screws on the wall.
3. Install the water heater
1)Fix the water heater to the 7 holes of the paper card and mark .
2)Drill the holes , and then install the water heater by expansion screws on the wall.
4. Install the inlet and outlet pipes
①Please install a suitable control valve at the outlet of the water heater, then connect the inlet of the valve to the outinlet of the water heater, pleas put a filter at the inlet of the heater to the debris (if water pressure exceed 0.6MPa, please install a reducing valve at the inlet of the device.)
②If the outlet pipe connected to the sprinkler directly, please connect the hosepipe of the sprinkler to the water heater outlet with the sealing ring.
Note: Do not force to connect the inlet and outlet pipe, so as to avoid damage to the water heater.
5. Installation of the power supply
The electric power should be installed by the professional technicist or qualified electrician.
Note： A、The current capacity of the power supply.
B、The maximum current of the ammeter.
C、Rated current of the switch.
D、When install the outer wire, it must be installed a disconnection device in the fixed circuitry, when it’s disconnected, the distance if all connection points should be at least 3 MM.
6. Installation instruction
* Application methods:
Notes:
The device can be use when the installation check is ok, it must be filled with water before power on when use for the first time or discontinued for a long time.
If the water in the device may be freezing, do not power on before confirm that the ice in the water heater has been thawy.
DR07A-3N180D（DR07A-3N210D或DR07A-3N240D）Electric type：
1. Close the external power supply switch, the power indicator light on.
2. Switch on the inlet valve of the tap water, water flow out from the outlet.
3.Press the key "on/off" , the device start working, choose the power gear, the screen will display the current water temperature, you can adjust the gear by key "+" or "-" , according to the need, the heating indicator on, water heater is working.
4.When the device is working, press the key " +" , to turn up the power, ; press the key"-" ,to turn down the power , "1" is for the minimum heating power.
5. Users can choose the gears or control the water flow through the regulating valve to reach the temperature you expect.
6. Switch off the water valve when you are using the device, the water heater will stop working and heating.
7.Open the water valve, water heater will be working again, it do not need to adjust the operating buttons.
DR07A-3N180J（DR07A-3N210J或DR07A-3N240J）Mechanic type：
1. Close the external power supply switch, the power indicator light on.
2. Switch on the inlet valve of the tap water, water flow out from the outlet.
3. This is mechanical type water heater , it use the mechanical gear knob for power regulation , switch clockwise to full power maximum and counterclockwise to the minimum power( 2/3 rated power ).
4. Users can choose the gears or control the water flow through the regulating valve to reach the temperature you expect.
5. Switch off the water valve when you are using the device, the water heater will stop working and heating.
6. Open the water valve, water heater will be working again, it do not need to adjust the operating buttons.
※Safety protection function
1.When the outlet temperature exceed 75℃, the water heater will stop heating until the water temperature drop to below 70℃. If dry heating happened, the protection device will switch off the power supply automatically.
2.Over-pressure protection: If the pressure of inlet is too high, the inlet safety reducing valve start to work automatically, until the water pressure return normal. It is natural phenomena if water drip from the valve.
※Maintenance
To make sure the normal use for the hot water, please pay attention to maintain:
1.For there are many impurities in the tap water, they may deposit in the strainer when it use for a long time, it will lead to waterway blockage, affect the normal use of the water heater and damage it, it is necessary to clean termly.
2.Regularly check the power cord, leakage protection switch are connected well and secured and the earthing is firm and reliable.
3.Cut off the power supply when you do not use the water heater.
4. Do not spray directly when clean the shell, it should switch off the power supply first and wipe gently by soft and wet cloths, then use the dry cloths. Please keep the shell to be dry and clean.
5. Descale:It shall be checked by authorized and qualified technicist once a year. Descaling check is necessary, especially for the local hard water exceeded 12 dH (German standard of water hardness).
※FAQ
|
Problem |
Cause |
Remedy |
|
Water leakage from inlet and outlet. |
The connection of in and out water pipe is not good. |
Connect the pipe again. |
|
Rubber rings damaged. |
Change the Rubber rings. |
|
Cold water from outlet. |
No electricity |
Power on |
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Water temperature is too low. |
Brownout |
Check the voltage is or not too low |
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Water flow is too high. |
Adjust the valve to reduce the water flow. |
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The power is too low |
Select higher power level. |
|
Water temperature is too high. |
Water flow is too low. |
Adjust the valve to increase the water flow. |
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The pipe is blocked. |
Clean the shower, filter and check the pipe. |
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The power is too high. |
Select lower power level. |
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The water come out is decrescent. |
Shower or filter are blocked by impurities. |
Clean the inlet and outlet of the device. |
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Water temperature is unstable |
The voltage or water pressure is unstable |
Wait for the voltage or water pressure become normal. |
|
Power switch trip or fusing |
Power switch is aging or the fuse is too thin |
Replace the power switch or the fuse according to the rated current,or ask the professional technicist to maintain. |
|
Dropping in the water heater |
The inner of the device is humidity. |
Power on again when the inner is absolute dry |
|
Leakage in the device. |
Ask the professional technicist to maintain. | |
