Customer Service Telephone 1.800.304.6563
Customer Service Facsimile 1.800.426.0804
Robertshaw®, Ranco®, Paragon® and Uni-Line® are
trademarks of Robertshaw, its subsidiaries and/or
affiliated companies. All other brands mentioned
may be the trademarks of their respective owners.
For Technical Service
Telephone 1.800.445.8299
Facsimile 1.630.260.7294
www.uni-line.com
www.robertshaw.com
©2014 Robertshaw
08/14 –1-110 RevB
DIAL ASSEMBLY
Insert “D’’ stem dial sleeve into front of control and snap in place.
The dial bushing adapts the dial to any of the four control mounting
positions. Assemble bushing into dial as follows.
Note stem flat position of dial sleeve. Hold dial with “OFF” position at
the top and press dial bushing into back of dial so that “D” open ing in
bushing will match position of stem flat on dial sleeve. See illustration
of bushing assembly at right.
If it is necessary to reposition bushing after it is pressed into dial, push
out metal-insert on front of dial with small screwdriver. This will allow
bushing to be pushed out the back of the dial.
When addition stem length is required, use the stem length adaptors
as follows:
1. Place adaptor on ‘’D’’ stem and place dial on adaptor.
2. To determine correct adaptor length measure distance from
back of dial edge to front of panel. Cut this amount from small
end of adaptor.
3. If a tighter dial fit is desired spread the end of the “D” stem and
stem length adaptor slightly.
BEZEL INSTALLATION
Bezel and sleeve are installed by sliding center sleeve over dial guide on
the front of the control.
If standard sleeve is too short, remove from bezel. Use pliers to apply
light pressure and squeeze the adaptor slightly to disengage locking
tabs. Install correct length sleeve in bezel.
Bezel index position can be changed to match manifold mounting
position of control. Snap sleeve out of bezel as described above, rotate
to required position, end snap into bezel.
OPERATING INSTRUCTIONS
ADJUSTMENTS
To adjust pilot: (on many applications the pilot is plugged and
adjustment is located on safety valve or manifold.)
1. Push dial inward, turn to 300° mark and light the burner.
2. Remove dial. Dial is keyed into place - do not twist or turn it. Grasp
the diaI at the outer edge and pull straight out.
3. With a screwdriver, turn Pilot Adjusting Key counterclockwise to
increase the flame, clockwise to decrease it, until the flame is
approximately 3/4” long.
4. Replace dial, turning clockwise until it locks in the “Off” position.
To Adjust By-Pass Flame: (Minimum burner flame)
When the unit reaches the temperature at which the dial is set, the
control cuts down the flow of gas to the amount required to keep the
unit at that temperature. Always, however, the control must by-pass
enough gas to keep the entire burner lit: To main tain this minimum
flame, the by-pass must be set carefully and accurately as follows:
1. Light the burner, then turn dial to “High”.
2. After 5 minutes, turn dial clockwise to point slightly beyond first
mark on dial.
3. Remove dial.
4. With a screwdriver, turn by-pass adjusting key counterclockwise
to increase the flame, clockwise to decrease it, until there is a
flame approximately 1/8” high over the entire burner.
5. Replace dial, turning clockwise until it locks in the “Off”
position.
SERVICE INSTRUCTIONS
To recalibrate control:
This control is a precision instrument. It is carefully calibrated at the
factory that is, it is adjusted so that dial settings match actual
tempertures. Field recalibration is seldom necessary, and should not
be resorted to unless considerable experience with cooking re sults
definitely proves that the control is not maintaining the temperatures
to which the dial is set.
Recalibration should not be undertaken, however, until the by-pass
flame has been adjusted.
To check temperatures when recalibrating, use a test instrument or a
reliable mercury thermometer. Place the thermocouple lead of test
instrument in the middle of the oven. Use surface type thermo couple
lead for griddles.
If Recalibration is required, use tha following procedure:
1. Set dial to 400° mark and light oven burner. (300° for griddles)
2. After burner has been on about 15 minutes, check temperature.
Oven door should be open for as short a time as possible. Use a
flashlight, if necessary, to see the thermometer reading clearly.
3. Continue to check temperature, at 5-minute intevals, until
two successive readings are within 5 degrees of each other.
If recalibration is required, the additional steps to be taken are these:
4. Remove dial assembly with “D” type stem.
5. Push calibration stem (in center of gas cock stem) inward with
screwdriver, while holding calibration stem firmly in, turn slot
clockwise to obtain a lower temperature or counterclockwise for
a higher temperature. Each mark on retainer represents 25
degrees. Replace “D” type stem with dial.
6. Check temperature again, as instructed in (2) and (3).