Note:
For pr
oper operation and maximum efficiency, the RIEL-
LO Burner must be set up exactly as shown on the
enclosed specification sheet. Settings for “Nozzle
Pressure”, “Burner Turbulator Setting”, and “Burner Air
Setting” are shown under each of 4 nozzle selections
that can be used with this furnace. Furnace is shipped
with .50 G.P.H. Nozzle installed and appropriate settings
made on burner to suit this nozzle size.
For complete detail regarding the Riello Burner, read
service manual enclosed with burner.
Fan Contr
ol
The setting of the fan contr
ol will depend upon the par-
ticular house and heating installation. The “Fan Off” set-
ting is factory set at 100 degrees F. This setting should
provide satisfactory operation for most installations. The
“Fan On” temperature is determined by the built in differ-
ential setting of the control.
It is desirable to have the “Fan Off” setting low enough
for extended blower operation. However, a “Fan Off” set-
ting too low will circulate cool air. To alter the “Fan Off”
setting rotate the indicator to the desired position on the
temperature scale.
Adjustments of all controls should only be made by a
competent serviceman. Control settings and blower
speed should be in accordance with the recommenda-
tions of the National Warm Air Heating and Air
Conditioning Association.
Summer Fan Operation
During the summer
, continuous air circulation can be
obtained by turning the manual fan switch from the
“auto” position to the “on” position.
Dual Air Operation
Fur
naces equipped with a dual speed blower system
enable partial air circulation at all times. When the ther-
mostat calls for heat the burner starts, and the high
speed phase quickly distributes warmed air throughout
the house. When the high speed phase ceases, the low
speed phase continues circulating the air to even tem-
peratures throughout the dwelling.
High Limit Contr
ol
The high limit contr
ol may be of a single switch type or
combination type in conjunction with the fan control. A
replacement limit control must be identical to that sup-
plied as original equipment.
Combustion Safety Contr
ol
Operation and checking of the primary contr
ol is outlined
in detail with the enclosed manufacturer literature.
Cleaning Pr
ocedure
Caution:
Do not use any commer
cially available soot remover. Use
extreme care when servicing since the combustion
chamber is fragile. Routine cleaning of the flue passages
does not require cleaning of the combustion chamber. If
for some reason it is necessary to work in the area of the
chamber do not touch or alter the chamber position.
Before cleaning, shut off electrical power supply to the
furnace.
Remove cleanout panel and cap from the front panel.
Loosen soot from the radiator with a cleaning tool or
brush. The tool should bend allowing cleaning around the
curved surfaces of the heat exchanger.
To clean the rear of the radiator remove the chimney flue
pipe from the furnace flue pipe.
Remove the flue baffle from the flue pipe. Loosen the
soot from the rear of the heat exchanger, flue pipe and
baffle.
Replacement Combustion Chamber
Should r
eplacing of chamber become necessary a spe-
cial replacement chamber is available.
Important -
When or
dering replacement combustion
chamber specify furnace model number.
