Honeywell 1EN2R-9005 0406R3-NE User Manual
EN2R-9005 0406R3-NE
6
L4188 - L6188 SINGLE AQUASTAT - DIRECT IMMERSION
APPLICATIONS AND ORDERING INFORMATION
Application
L4188 and L6188 are sensitive, immersion-type water
temperature thermostats for controlling and limiting boiler
water temperature in hydronic heating systems.
temperature thermostats for controlling and limiting boiler
water temperature in hydronic heating systems.
The thermostat has a liquid-filled sensing element which fits
into an immersion well (order separately) for direct mounting
into a boiler, tank or other vessel.
into an immersion well (order separately) for direct mounting
into a boiler, tank or other vessel.
Ordering information
1 = High limit stop
2 = High limit stop at 60°C
3 = Capilliary length 1500 mm and mounting bracket
4 = Without cover and conduit box
5 = Quick connect terminals only
6 = With well assembly
7 = With push-in plug
2 = High limit stop at 60°C
3 = Capilliary length 1500 mm and mounting bracket
4 = Without cover and conduit box
5 = Quick connect terminals only
6 = With well assembly
7 = With push-in plug
O.S. number
Application
Temperature
range
range
Switch
differential (K)
differential (K)
Switch type
Setting means
Remarks
(see notes)
(see notes)
L4188A 2015
Controller
25 ... 95°C
4
SPST
External knob
-
L4188A 2023
Controller
40 ... 110°C
4
SPST
External knob
5
L4188A 2031
Controller
25 ... 95°C
4
SPST
External knob
5
L4188B 2005
Controller
40 ... 110°C
4
SPST
Internal screw
4 - 5
L4188B 2013
Controller
25 ... 95°C
4
SPST
Internal screw
4 - 5
L6188A 2002
Controller
25 ... 95°C
4 ... 10
(adjustable)
(adjustable)
SPDT
External knob
6
L6188A 2010
Controller
40 ... 110°C
4 ... 10
(adjustable)
(adjustable)
SPDT
External knob
6
L6188A 2028
Controller
25 ... 95°C
4 ... 10
(adjustable)
(adjustable)
SPDT
External knob
3
L6188A 2036
Controller
70 ... 140°C
4 ... 10
(adjustable)
(adjustable)
SPDT
External knob
6
L6188A 2044
Controller
40 ... 110°C
4 ... 10
(adjustable)
(adjustable)
SPDT
External knob
Tradeline 1 - 7
L6188B 2000
Controller
25 ... 95°C
4
SPDT
Internal screw
4
L6188B 2018
Controller
70 ... 140°C
4 ... 10
(adjustable)
(adjustable)
SPDT
Internal screw
3 - 7
L6188B 2026
Controller
40 ... 110°C
4 ... 10
(adjustable)
(adjustable)
SPDT
Internal screw
L6188B 2034
Controller
25 ... 95°C
4 ... 10
(adjustable)
(adjustable)
SPDT
Internal screw
6 - 7
L6188B 2042
Controller
25 ... 95°C
4
SPDT
Internal screw
L6188C 2008
Limiter
70 ... 140°C
Manual reset
SPDT
Internal screw
7
L6188C 2016
Limiter
25 ... 95°C
Manual reset
SPDT
Internal screw
6 - 7