MYPV ELWA Assembly And Operation Manual Download Page 3

ELWA

®

 Assembly- and Operation Manual, 170504 

Exemption of Warranty and Liability

 

Any warranty or liability is exempted for: 

 

Injury to persons and/or damage to property caused by unintended use or in disregard of 
safety- and user instructions 

 

Consequential damage 

 

Unauthorized modification, disassembling or other conversion of the device 

 

Defects caused by lime scale deposits on the heating rod. 

Assembly and Installation Instructions 

The installation of the device must only be carried out by authorized technical staff. 
The storage tank must be drained properly. 
ELWA is intended for horizontal mounting in hot water or storage tanks with 1 ½ inch standard 
female threads. 
The unheated section of the heating rod is 100mm from sealing face, the length of the thread 
pipe must not exceed 90mm. 
Use the O-ring seal supplied. Do not use any grease or lubrication agents. The plastic thread 
must not be sealed with the help of hemp or other sealing material. 
Do not apply force when screwing in the entire device until the seal is slightly pressed. Make 
sure that the O-ring is properly placed in its groove. Then tighten the heating rod with a 60mm 
spanner. Never exceed a torque of 80 Nm. 

 Never tighten the heating rod by turning the metal case of the device! 

If the device is not upright (power cord bottom) after the thread has been tightened, it can be 
turned gently left or right. 
Then tighten the 4 lock nuts to fix the device: 
 

 

Make sure that the heating rod is fully immersed when filling the water tank. Check for leakage. 

 

 

Summary of Contents for ELWA

Page 1: ...l Connection 4 Electrical Connection Stratification Charge 4 Controls and Indicators 5 Operating Status Indicator 5 Start up 5 Normal operation without boost backup AC plug not connected 5 Normal operation with boost backup AC plug connected 5 Adjusting the boost backup target temperature factory preset to 50 C 6 Stratification Charge with two ELWAs 6 Error Displays 6 Maintenance 7 Troubleshooting...

Page 2: ...nstructions Always comply with local regulations for mounting and connection Any damage caused by ignoring the installation and user manual is not covered by the manufacturer s warranty Permanent equipotential bonding of the device and the storage tank is mandatory Never switch on the device if the heating rod is not fully immersed The device is intended for use in a dry environment the enclosure ...

Page 3: ...female threads The unheated section of the heating rod is 100mm from sealing face the length of the thread pipe must not exceed 90mm Use the O ring seal supplied Do not use any grease or lubrication agents The plastic thread must not be sealed with the help of hemp or other sealing material Do not apply force when screwing in the entire device until the seal is slightly pressed Make sure that the ...

Page 4: ...up heating is desired Electrical Connection Stratification Charge 1 Earth ground the storage tank according to local regulations 2 Connect Earth ground wire to the grounding screws of both devices with a minimum wire section of 1 5mm AWG15 Test the ground conductor resistance according to the local regulations Protection Class 1 see above 3 Make sure that both devices are switched off 4 Connect DC...

Page 5: ... ELWA after connecting the DC The green LED flashes Standby 1 Adjust desired solar target temperature 2 Switch on main switch Device starts operating several minutes after the DC has been connected and solar power is available 3 Device returns to normal operation LED yellow on 4 If target temperature reached Device switches off LED green on Normal operation with boost backup AC plug connected Boos...

Page 6: ...ost backup target temperature factory preset to 50 C 1 Switch off main switch 2 Adjust rotary knop to spanner position far left 3 Switch on main switch all 3 LEDs flash Setup Mode 4 Set rotary knob to desired reheat temperature LEDs flash alternately red green and yellow 5 Switch off main switch backup temperature is saved 6 Set rotary knob to desired solar target temperature 7 Switch on main swit...

Page 7: ...limy water can lead to lime scale deposition at the heating rod especially of the target temperature is set above 60 C We recommend an annual check Dismantle device from storage tank and remove lime deposition Never scratch the heating rod surface corrosion might arise Troubleshooting The device does not contain any user serviceable parts Call your installer for service Disposal Keep packaging box...

Page 8: ...wer consumption 0 W at DC operation 2 W at AC operation DC inputs Original MC4 1 string PV panel configuration 4 8 pcs 60 cells polycrystalline MPP efficiency 99 8 General Data Operating pressure max 10 bar 1MPa Overall efficiency 99 at nominal power Protection class IP20 Operating temperature range 5 C to 40 C Operating display 3 LED s Interface Serial IR Interface Dimensions WxHxD 130 x 180 x 60...

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