White-Rodgers 11B18 Instructions D'installation page 2

CONVERTIBLE CONTROLS CONT.
NOTE
To convert from Vertical to Horizontal model, remove
Knockout Plug and Plate. Remove Hex Nut (inside con-
trol) and swing capillary upward into back knockout. Place
Knockout Plate beneath Hex Nut on back of control and
tighten Hex Nut (inside control). If bottom knockout is not
used for wiring, insert Knockout Plug.
EXTENDING CAPILLARY
Some controls have excess stored capillary which may be
extended for use with an extended shank well. Use reason-
able care when straightening and forming the capillary.
INSTALLATION
If the boiler manufacturer recommends a control location,
follow such recommendations. If none is offered, the
following information gives suggested locations.
When used for high limit service, the control should be
installed in the riser close to the boiler, or in a boiler
tapping that is near the top or hottest section of the boiler.
If the boiler is also used to heat domestic hot water, make
sure that the high limit control is not located in the section
of the boiler that contains the heat exchanger or piping for
domestic hot water.
When used for low limit or operator service, the control
should be located near that section of the boiler that
WIRING
All wiring should be done in accordance with local and national electrical codes and ordinances.
If the boiler or burner manufacturer recommends a wiring
diagram, then follow such recommendations.
If none is offered, these diagrams show suggested cir-
cuits.
HIGH
LIMIT
THERMOSTAT
AUX
TRANSFORMER
2 3
TH TR
1 4
SILENT KNIGHT
COIL
GAS VALVE
PLUG-IN
PILOT
All manuals and user guides at all-guides.com
Used as high limit control
with Silent Knight gas
valve with plug-in pilot
TO
LINE
HEX NUT
MOUNTING STEM
CAPILLARY
BULB
Convertible Control converted to Vertical Model.
With the capillary fully extended, the bulb should slide all
the way to the end of the well.
contains the heat exchanger or piping for domestic hot
water.
To remove the well from the control, loosen the set screw
in the large nut, then slide the well off to expose the bulb.
Screw the well into the proper tapping. Slide the bulb back
into the well, making sure that the bulb enters the well as
far as it will go and tighten the set screw.
CAUTION
Do not dent or bend the bulb as this will prevent
it from fitting into the well properly.
LINE
INTERMITTENT IGNITION
GND HOT
OIL BURNER CONTROL
FUSED
LINE
SWITCH
Used as high limit
control with
oil burner control
DIAPHRAGM
GAS VALVE
THERM PILOT TRANS
THERMOSTAT
LIMIT
AUTOMATIC
CONTROL
PILOT
2
KNOCKOUT PLUG
KNOCKOUT PLATE
THERMOSTAT
LIMIT
CONTROL
1 2
T T
TRANS
MOTOR
Used as high limit
control with
diaphragm gas valve
TRANSFORMER
TO
LINE
IF AUTOMATIC PILOT IS NOT USED,
CONNECT A JUMPER BETWEEN
THE PILOT TERMINALS
STACK
3 4