EAS Electric E150WHK User Manual page 20

Preface
Thank you to choose our product for air source heat pump water heaters
*This manual is to provide relevant important safety, installation, operation and maintenance
information for you. Please read this manual carefully before you open or maintain the unit.
* This unit should be installed by authorized professional personnel. If the users install the
water heater on their own, wrong operation maybe result in fire, electric shock, injury, water
leakage, etc.;
*This unit should be repaired by authorized professional personnel, Please contact local
distributor or our professional repaired personnel if need. If the users repair the water heater
on their own, wrong operation maybe result in fire, electric shock, injury, water leakage, etc.;
*The installer should explain to the user how to operate and maintain the unit according to the
manual when the unit is installed. And ask the user to read the manual carefully, keep the
manual and do the operation in strict accordance with the Manual.
*It is vital that the below instruction are adhered to at all times to keep the warranty.
---Maintenance and operation must be carried out according to the recommended time and
frequency, as stated in this manual.
---Failure to comply with these recommendations will invalidate the warranty.
* The manual will be changed if there is any improvement on the unit, there will not be
advance notice.
*The water should be purified treated, if the water source is from ground water, well water,
river water, sea water, industrial water, all untreated water. Water quality request as follows:
PH Value Total Hardness Electric Conductivity
6.5~8.0 <50ppm <200uV/cm(25℃)
Sulfate ion Silicon Iron content
<50ppm <30ppm <0.3ppm
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Sulfur Ion Chloride ion Ammonia ion
/ <50ppm /
Sodium ion Calcium ion
/ <50ppm
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Contents
1.Safety Precaution ........................................................................................................................3
2.Product instruction.......................................................................................................................7
2.1 Product introduction..................................................................................................................7
2.2 Working Principle......................................................................................................................7
3. Product Instruction......................................................................................................................8
3.1 Appearance...............................................................................................................................8
3.2 Dimension..................................................................................................................................8
3.3 Performance Parameter.........................................................................................................10
4. Installation Instruction................................................................................................................12
4.1 Installation place choose........................................................................................................12
4.2 Installation Instruction..............................................................................................................13
4.2.1 Installation Attention..............................................................................................................13
4.2.2 Product transport..................................................................................................................13
4.3 Pipe connection........................................................................................................................13
4.4 Electrical schematic ................................................................................................................16
5. Operating Instruction..................................................................................................................20
5.1 Usage.........................................................................................................................................20
5.2 Operating guidline....................................................................................................................21
5.2.1 Operation panel introduction................................................................................................21
5.2.2 Panel' s operating guideline.................................................................................................23
5.2.3 Parameter codes..................................................................................................................27
6. Maintenance and faults handling.............................................................................................30
6.1 Unit maintenance.....................................................................................................................30
6.2 Frequently asked question......................................................................................................30
6.2.1 Unit operates..........................................................................................................................30
6.2.2 Safety valve leaks.................................................................................................................30
6.2.3 Heat pump unit noise...........................................................................................................31
6.2.4 P/T valve..............................................................................................................................31
6.2.5 Common problems............................................................................................................32
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