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

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E93.1803.901 HW 48
The air supply duct can be made of PVC, PP or Stainless steel
10.1.2 C
OMBUSTION AIR QUALITY
Combustion air must be free of contaminants. For example: chlorine, ammonia and/or alkali agents, dust, sand
and pollen. Remind that installing a water heater near a swimming pool, a washing machine, laundry or chemical
plants does expose combustion air to these contaminants.
10.1.3 A
IR SUPPLY THROUGH HUMID AREAS
When the supply duct will be placed in a water heater room with moist air (for example: greenhouses), a double
walled supply duct or an insulated duct must be used to prevent the possible condensation at the outside of the
duct. It is not possible to insulate the internal air pipes of the water heater and therefore condensation at the
internal air canals must be prevented.
When roof mounted, the air supply duct needs to be protected against rain, so no water will be entering the boiler.
10.1.4 A
IR INLET PIPE MATERIALS
The air inlet pipe(s) must be sealed. Choose acceptable combustion air inlet pipe materials from the following list:
- PVC or PP
- Flexible propylene air intake
- Galvanized steel vent pipe with joints and seams sealed as specified in this section.
Room air
Commercial applications utilizing the water heater may be installed with a single pipe carrying the flue products
to the outside while using combustion air from the equipment room. In order to use the room air venting option,
the following conditions and considerations must be followed.
• The equipment room MUST be provided with properly sized openings to assure adequate combustion air. These
vents must be open and may not be closed or blocked. Requirements in accordance with national and local
standards, e.g. NEN 3028 and BS 6644.
• There will be a noticeable increase in the noise level during normal operation from the inlet air opening.
• Vent system and terminations must comply with the standard venting instructions set forth in this manual.
10.1.5 A
IR CONTAMINATION
Pool and laundry products and common household and hobby products often contain fluorine or chlorine com-
pounds. When these chemicals pass through the boiler, they can form strong acids. The acid can eat through the
water heater wall, causing serious damage and presenting a possible threat of flue gas spillage or water leakage
into the building.
Please read the information given in the list below, with contaminants and areas likely to contain them. If contam-
inating chemicals will be present near the location of the water heater combustion air inlet, have your installer pipe
the water heater combustion air and vent to another location, per this manual.
The water heater may never be located in a laundry room or pool facility, for example, these
areas will always contain hazardous contaminants.
To prevent the potential of severe personal injury check for areas and products listed in the
list below, with contaminants before installing the water heater or air inlet piping.
If contaminants are found, you MUST: - remove contaminants permanently.
or - relocate air inlet and vent terminations to other areas.
The installation room has to have sufficient air supply vents. These vents must be open and
shall not be closed or blocked. Requirements in accordance with national and local stand-
ards, e.g. NEN 3028 and BS 6644.
WARNING