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10 

 

The flow tube does not feel warm: 

 

Due to the high efficiency of your electric heater 

no warmth

 should be detectable from the flow tube 

of the heater.  

 

The most likely causes of the flow tube feeling warm are: 

 

Possible Cause 1: 

 

The heater has been positioned in direct sunlight. 

Possible Cause 2: 

An air pocket is trapped inside the heater particularly if the tank feels 
warmer at the highest point of the tank (as air rises). 

 

 

 

The water entering the pool does not feel much warmer: 
 

The temperature gain of the water after it has passed through the heater will be directly proportional 
to the volume of water being pumped in relation to the power output of the heater. 
 

For example:

 

A  6-kW  heater,  when  connected  to  a  4,000  litre/hour  pump  will 
produce  a  lift  in  temperature  of  approximately  1.2°C  (almost 
undetectable  to  the  human  hand),  however,  as  the  water  being 
heated is re-circulated from a single body of water, the time required 
to  heat  it  remains  unaffected  by  the  volume  of  flow.    A  popular 
misconception is that slowing down the flow rate will speed up the 
heating process. 

 

5. MAINTENANCE 

 

We recommend annual maintenance and cleaning of the heater to ensure proper operation. 

 

WARNING:

   Before performing any maintenance on the unit isolate from the main power supply. 

 
The  heater  should  be  drained,  the  flow  tube  and  heating  elements  should  be  cleaned.  Removing 
scale/sludge and any debris or blockages will extend the life expectancy of the heating element(s) and 
avoid potential failures. 
 
Check that electrical cable connections are properly tightened. 

 

6. DISPOSAL OF ELECTRICAL AND ELECTRONIC EQUIPMENT 

 

DO NOT dispose of this product as an unsorted municipal waste. 

 
This  symbol  on  the  product  or  on  the  packaging  indicates  that  this  product  should  not  be  treated  as 
household waste. Instead it should be handed over to the applicable collection point for the recycling of 
electrical and electronic equipment. 

 

 
By ensuring this product is disposed of correctly you will help prevent potential 
negative  consequences  for  the  environment  and  human  health,  which  could 
otherwise  be  caused  by  inappropriate  waste  handling  of  this  product.    The 
recycling of materials will help to conserve natural resources. 
 
For  more  information  please  contact  your  local  Civic  Office,  household  waste 
disposal service or the retailer where the product was purchased. 
 

 

 
 
 
 

Summary of Contents for Nano SPA Heater

Page 1: ...Nano SPA Heater Installation Operating Manual...

Page 2: ...ion 4 2 2 Pipework 4 2 3 Flow direction 6 2 4 Electrical connection 6 2 5 Power requirements 7 3 OPERATING INSTRUCTIONS 7 3 1 Flow requirements 7 3 2 Water quality 7 4 TROUBLESHOOTING 8 5 MAINTENANCE...

Page 3: ...of trouble free service please read and follow these instructions for proper installation maintenance and use Incorrect installation will affect the warranty WARNING Failure to install the unit correc...

Page 4: ...of the heater The unit must not be covered to allow adequate ventilation The heater must be installed within a dry permanent weather proof area In any case where water or moisture enters the enclosur...

Page 5: ...letely full of water during operation the return pipe which carries the water back to the pool must incorporate a safety loop or kick up in the pipe as close as possible to the heater see Fig 3 NOTE W...

Page 6: ...ecause of the ridges in the pipe it will not squeeze down tight It will need to be sealed with a bathroom type mastic sealant 2 3 Flow direction The heater can accept the flow of water from only one e...

Page 7: ...ax 4 5 mg litre Total Dissolved Solids TDS Calcium hardness 200 1 000 ppm The permitted salt concentration is dependent on the model of heater purchased Incoloy 825 heating element Zero salt content p...

Page 8: ...the test i e with the heater red light On To avoid inaccurate results when performing this test it is important to refrain from using other high current consuming appliances in the property such as tu...

Page 9: ...ble Check both ends of the power supply cable at the distribution box and at the heater terminal block Remedy Contact an Electrician to check installation and protection Heater is tripping circuit bre...

Page 10: ...ocess 5 MAINTENANCE We recommend annual maintenance and cleaning of the heater to ensure proper operation WARNING Before performing any maintenance on the unit isolate from the main power supply The h...

Page 11: ...Proof of purchase may be required The manufacturer will not be liable in cases of incorrect installation of the heater inappropriate use or neglect of the heater Any damages occurred due to shipping m...

Page 12: ...12 8 WIRING DIAGRAMS Nano SPA 1 2 and 3 kW Nano SPA 4 5 and 6 kW Nano SPA 8 kW...

Page 13: ...Hertfordshire SG1 2BH United Kingdom __________________________________________________________________________________ Customer Information ATTACH TO HEATER Company Name Contact Name Daytime Telepho...

Page 14: ...14...

Page 15: ...15 Notes...

Page 16: ...11 Gunnels Wood Park Stevenage Herts SG1 2BH Sales elecro co uk www elecro co uk 44 0 1438 749474 Copyright V01 2019...

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