L4081A,B AND L6081A,C MULTIPLE AQUASTAT® CONTROLLERS
60-2105—07
8
The differential adjustment applies to only the low-limit
and/or circulator switch(es). Minimum differential
adjustment provided is 10°F (6°C) nominal; maximum is 25°F
(14°C) nominal. Set as desired.
Setting Stop
Install the 126580 Setting Stop on the adjusting knob to
prevent turning the knob beyond a predetermined point. Fig.
11 shows stops installed on the knob of the high limit switch
to prevent setting higher than 180°F (82°C).
To install the setting stop, proceed as follows:
1.
Turn the knob to the setting that is to be established as
the limit.
2.
Place the setting stop over the knob in position to arm
of setting stop (after the stop is pressed into place)
strikes projection A and prevents turning the knob
beyond the desired limit setting.
3.
Press the setting stop tightly onto the knob so that its
inner teeth securely engage the knob.
4.
Turn knob back and forth several times to make sure
the stop functions properly.
5.
When all settings are made, replace the cover.
Fig. 10. Charts showing switching response to temperature
changes.
LOW LIMIT
SETTING
HIGH LIMIT
SETTING
SWITCH BREAKS ON RISE.
BURNER TURNS OFF.
SWITCH MAKES ON FALL.
BURNER OPERATES ON
A CALL FOR HEAT.
SWITCH BREAKS ON RISE.
(10 F (5.6 C) DIFFERENTIAL).
SWITCH MAKES ON FALL.
BURNER ON.
M8847B
SWITCH BREAKS ON RISE.
(25 F (13.9 C) DIFFERENTIAL).
10 F (5.6 C)
DIFFERENTIAL
25 F (13.9 C)
DIFFERENTIAL
10 F (5.6 C)
DIFFERENTIAL
CIRCULATOR
SETTING
HIGH LIMIT
SETTING
SWITCH BREAKS ON RISE.
BURNER TURNS OFF.
SWITCH MAKES ON FALL.
BURNER OPERATES ON
CALL FOR HEAT.
SWITCH MAKES ON RISE.
(10 F (5.6 C) DIFFERENTIAL).
SWITCH BREAKS ON FALL.
CIRCULATOR OFF.
110 F (43 C)
240 F (116 C)
SWITCH MAKES ON RISE.
(25 F (13.9 C) DIFFERENTIAL).
10 F (5.6 C)
DIFFERENTIAL
25 F (13.9 C)
DIFFERENTIAL
10 F (5.6 C)
DIFFERENTIAL
110 F (43 C)
240 F (116 C)
L4081A
L4081B
10 F (5.6 C)
DIFFERENTIAL
25 F (13.9 C)
DIFFERENTIAL
10 F (5.6 C)
DIFFERENTIAL
LOW LIMIT AND
CIRCULATOR
SETTING
HIGH LIMIT
SETTING
SWITCH BREAKS ON RISE.
BURNER TURNS OFF.
CIRCULATOR OPERATES
ON CALL FOR HEAT.
SWITCH MAKES ON FALL.
BURNER OPERATES ON
CALL FOR HEAT.
SWITCH MAKES R-W AND
BREAKS R-B ON RISE.
(10 F (5.6 C) DIFFERENTIAL)
SWITCH MAKES R-B ON
FALL,BREAKS R-W ON FALL.
BURNER ON,CIRCULATOR
OFF.
110 F (43 C)
240 F (116 C)
SWITCH MAKES R-W AND
BREAKS R-B ON RISE.
25 F (13.9 C) DIFFERENTIAL.
L6081A,C
