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boiler outlet vent, if a direct venting system is used. The inlet hood should be waterproof and
include a bug and bird screen.
In cases where the boiler is installed in an area where exhaust, kitchen or bath ventilation systems
and fans exist, they may create unsatisfactory combustion or venting conditions. Special
consideration should be made for additional air.
All combustion air and ventilation requirements should meet local code and or NFPA Standard 31.
Combustion Air Supply with No Barometric Damper
When no Barometric Damper is used, Table 1 should be used to size the air inlet pipe to the
burner air housing.
NFPA or OEM Burner specifications should take precedence where required.
Piping and Wiring
Once the unit is in its proper location and level with the jacket and controls in place it is ready for
piping and connection to the heating and domestic water systems, fuel system, room
thermostat and 110 Volt 60 cycle AC current.
Assemble and install the oilburner to manufacturer specifications and apply a bead of RTV
silicone between air tube and flange. Mount and level burner and fully tighten all mounting nuts.
Piping
Heat Distribution System
Before connecting the Pensotti Heatline Quatech Series boiler to an existing piping system, the
system should be flushed to prevent scale and sludge from returning to the boiler.
If the present system is being converted from a gravity open system, this is a must item, and a by-
pass must be considered.
The Pensotti Heatline Quatech Series is a low mass boiler and care should be taken to ensure that a
high volume of water should not be allowed to flood the boiler from a high volume standing cast
iron system. The high flow will cause combustion problems from cool surface impingement within
the boiler.
If a high-pressure test of the existing hydronic system is necessary, the boiler itself must not be
exposed to the pressure test. Isolate the boiler during the test.
Pensotti Heatline Quatech Series
Firing Rate Range (gph)
0.75 to 1.00
1.00 to 1.50
1.50 to 2.25
Table 1
Chimney Connector Size
5" round or equivalent
6" round or equivalent
7" round or equivalent
6
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