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

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E93.1803.901 HW 66
Ad 4. Combine all air intake terminals of the heaters
Combine all air intake terminals of the heater, which do not necessarily have to be connected to the outside of the
room. The purpose of a combined air intake is to have a controlled airflow towards the heaters and improve the
air exchange in the room.
11.2 Existing common venting guidelines
Do not common vent the CB water heater with the vent pipe of any other boiler or appliance. However, when an
existing water heater is removed from an existing common venting system, the common venting system is likely
to be too large for proper venting of the appliances remaining connected to it. At the time of removal of an existing
water heater, the following steps shall be followed with each appliance remaining connected to the common vent-
ing system placed in operation, while the other appliances remaining connected to the common venting system
are not in operation:
1) Seal any unused openings in the common venting system.
2) 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.
3) Insofar as is practical, close all building doors and windows and all doors between the space in which the
appliances remaining connected to the common venting system are located and other spaces of the build-
ing. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any
exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do
not operate a summer exhaust fan. Close fireplace dampers.
4) Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so
appliance will operate continuously.
5)
Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame
of a match or candle, or smoke from a cigarette, cigar, or pipe.
6) After it has been determined that each appliance remaining connected to the common venting system
properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers
and any other gas-burning appliance to their previous condition of use.
Any improper operation of the common venting system must be corrected so the installation conforms with the
National standards.
When resizing any portion of the common venting system, the common venting system must be resized to ap-
proach the minimum size as determined using the appropriate tables in the Standards and this manual.
Common air intake