Eco Heating Systems CB 105 HW, Installation, Service And User Manual

Page: 7 / 147

E93.1803.901 HW 8
What to do if you smell gas:
▪
Don't use any electrical equipment.
▪
Don't press any switches.
▪
Close the gas supply.
▪
Ventilate the room (open the windows and/or outdoor water heater room doors).
▪
Immediately warn the installer.
The manufacturer/supplier is not liable for any damage caused by inaccurately following of
these mounting instructions. Only original parts may be used when carrying out any repair or
service works.
This appliance can be used by children aged from 8 years and above and persons with re-
duced physical, sensory or mental capabilities or lack of experience and knowledge if they
have been given supervision or instruction concerning use of the appliance in a safe way and
understand the hazards involved.
The protection class for gas appliance type B23(P) is IP20.
Only with the special air inlet (see § 5.1 "Accessories"), the protection class is IPX4D.
Important technical warnings and guidelines
Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or
restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
Maintenance and inspection of the water heater should be carried out at the following conditions:
•
When a number of similar error codes and/or lock-outs appear.
•
At least every 12 months maintenance must be done to ensure safe and efficient operation.
Damage caused by lack of maintenance will not be covered under warranty
The Eco Heating Systems Hot Water systems will, for a long period, comfortably meet your requirement of hot
water of the right temperature at the right hour, provided that a few important conditions have been fulfilled regard-
ing the installation.
Please follow all instructions and recommendations presented in this manual by Eco Heating Systems, especially
the ones concerning the next important topics:
-
Water quality (also see § 8.1)
A first necessary condition is the quality of the water to be heated in the water heater.
Only potable water can be used with this water heater. Do not introduce pool or spa water, or any chemically
treated water into the water heater.
Three values matter: hardness, total amount of dissolved solids and acidity. If water quality does NOT meet
the requirements the system may be seriously damaged in time!

Hardness should not exceed 196 PPM CaCO
3
(11 °dH). If the waterflow is enlarged, a water hardness up
to 250 PPM (14 °dH) is acceptable.
Water hardness leads to scale formation and may affect/damage the water heater. Hard water scaling
must be avoided or controlled by proper water treatment.

TDS (Total Dissolved Solids) should not exceed 450 PPM

Hardness and TDS together should not exceed 450 PPM

pH value should be between 6,5 and 7,5, measured cold.
The actual values can be retrieved at your local water supplier.
If water quality doesn’t meet the above mentioned requirements, a water treatment installation shall be in-
stalled to improve water quality to the required levels.
- Water flow velocity and pump selection
For a given combination of water heaters and tanks, pump selection is very important with respect to the
required flow velocity. Use the water heater exchanger resistance graphs to calculate the pump needed.