L4191 - L6191 - Honeywell L41.. Product Handbook

L4191 - L6191 DUAL AQUASTAT - DIRECT IMMERSION
Ordering information L4191
O.S. number Application
Controller
L4191A 2002
Limiter
Controller
L4191A 2010
Limiter
Controller
L4191B 2018
Limiter
Controller
L4191B 2042
Limiter
1 =Gold contacts for thermocouple applications, without jumper
2 =High limit stop at 80°C/low limit stop at 60°C
3 =High limit stop at 82°C
4 =Low limit stop at 95°C
5 =Isolated neutral terminal
6 =High limit stop at 95°C
Ordering information L6191
O.S. number Application
Controller
L6191A 2007
Limiter
Controller
L6191A 2015
Limiter
Controller
L6191A 2023
Limiter
Controller
L6191B 2005
Limiter
Controller
L6191B 2013
Limiter
Controller
L6191B 2021
Limiter
Controller
L6191B 2047
Limiter
Controller
L6191B 2054
Limiter
1 =Gold contacts for thermocouple applications, without jumper
2 =High limit stop at 80°C/low limit stop at 60°C
3 =High limit stop at 82°C
4 = Low limit stop at 95°C
5 = Isolated neutral terminal
6 = High limit stop at 95°C
EN2R-9005 0406R3-NE
APPLICATION AND ORDERING INFORMATION
Temperature Switch
range differential (K)
25 ... 95°C 4
25 ... 95°C 4
25 ... 95°C 4
25 ... 95°C 4
70 ... 140°C 4
70 ... 140°C Manual reset
25 ... 95°C 4
25 ... 95°C Manual reset
Temperature Switch
range differential (K)
4 ... 10
40 ... 110°C
(adjustable)
40 ... 110°C 4
25 ... 95°C 4
101°C fixed 4
50 ... 95°C 4
101°C fixed 4
25 ... 95°C 4
40 ... 110°C Manual reset
40 ... 110°C 4
40 ... 110°C Manual reset
4 ... 10
70 ... 140°C
(adjustable)
70 ... 140°C Manual reset
4 ... 10
70 ... 140°C
(adjustable)
70 ... 140°C Manual reset
25 ... 95°C 4
50 ... 95°C Manual reset
Application
L4191 and L6191 are dual units in which two independently
working water temperature thermostats are housed in one
cover. Each thermostat has a separate liquid filled sensing
element which fits into a common immersion well for direct
mounting into a boiler, tank or other vessel. One thermostat,
with external temperature setting dial, acts as a controller
while the other, with internal setting dial, acts as a high limit
control.
Two main types are available, one with controller and auto
recycling high limit and the other with controller and high limit
with manual reset.
Switch type
SPST
SPST
SPST
SPST
SPST
SPDT
SPST
SPDT
7 =With well assembly
8 =High limit stop
9 =With jumper
10 =With push-in plug
11 =Without knob and index
Switch type
SPDT
SPDT
SPDT
SPST
SPDT
SPST
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
7 = With well assembly
8 = High limit stop
9 = With jumper
10 =With push-in plug
11 = Without knob and index
12
Setting means Remarks
(see notes)
External knob 9
Internal screw 9
External knob 7 - 9 - 10
Internal screw 9
External knob 6
Internal screw 1
External knob 5 - 9 - 10
Internal screw 9 - 10
Setting means Remarks
(see notes)
External knob 6 - 7 - 9
Internal screw 9
External knob 3
Internal setting 1
External knob 3
Internal screw 1
External knob 7 - 9 - 10
Internal screw 9
External knob 5 - 6 - 7 - 9
Internal screw 9
External knob 4 - 7 - 9
Internal screw 9
External knob 4 - 7 - 9 - 11
Internal screw 9
External knob 7 - 10
Internal screw