Technical data
7
CTC EcoZenith i250 
General Information
Important to remember!
Check the following points in particular at the time of delivery and installation:
•  The product must be transported and stored in an upright position. 
When moving the product, it can be placed temporarily on its back.
•  Remove the packaging and check before installation that the product 
has not been damaged in transit. Report any transport damage to the 
carrier.
•  Place the product on a solid foundation, preferably made of concrete. 
If the product needs to be placed on a soft carpet, base plates 
must be placed under the adjustable feet.
•  Remember to leave a service area of at least 1 m in front of the 
product.
•  The product must not be placed below floor level either.
•  On installation in a newly built dwelling, the regulations of the Swedish 
National Board of Housing, Building and Planning (Boverket) must be 
adhered to when setting maximum power output. The installer must key 
in the four figure code 8818 under the menu: Service/Factory settings 
coded, within one week – this locks maximum power.
Safety Instructions
The following safety instructions must be observed when handling, installing 
and using the product:
•  Close the safety switch before doing any work on the product.
•  The product must not be flushed with water.
•  When handling the product with a hoist ring or similar device, make 
sure that the lifting equipment, eyebolts, etc. are not damaged. Never 
stand under the hoisted product.
•  Never jeopardize safety by removing bolted covers, hoods or similar.
•  Never jeopardize safety by deactivating safety equipment.
•  Any work done on the product’s electrical system should be done by a 
qualified professional.
•  Safety valve check: 
- The safety valve for the boiler/system and domestic hot water (DHW) 
must be checked on a regular basis. See the chapter on Operation and 
maintenance.
!
If these instructions are not followed when installing, operating and maintaining 
the system, Enertech’s commitment under the applicable warranty terms is not 
binding










