White Rodgers 11B18-101 Well Immersion Hydronic Control Catalog Page
HYDRONIC
CONTROLS
WELL IMMERSION SINGLE CONTROL
Types for use as High Limit, Reverse Action or SPDT Switching
Action: May Be Mounted Either Horizontal or Vertical.
FEATURES
•Extracapillarylengthforextendedshankwells.
•Specialscrewterminalswith“ears”securelyholdsolidandstrandedwires.
•Screwdriver-adjustabledifferentialwithdirect-readindicator.
•Knockoutsontopandbottomandplentyofwiringroom.
•Hydraulicactionelement—fastacting.
SPECIFICATIONS
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . 53/8”H + 25/16” coil x 29/16”D
Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . . Grey
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. listed and C.S.A. approved
11D18-1
PARTS AND ACCESSORIES See end of this section for additional parts and accessories
•F145-0163—Tubeheatconductivecompound
•Immersionwells—seepage107
Full
Motor Rating
Valves and
Model
Switch
Electrical
(Full Load)
Relays
Number
Range
Differential
Action
Rating
120 VAC
240 VAC
24 VAC
0.3-12v DC
11D18-1 ➀
100 to 240°F
5 to 45°F
Open on Rise
HTV
10.0A
6.0A
6.0A
1.0A
(38 to 116°C)
(3 to 25°C)
See page 416
11D31-1
100to240°F
7to45°F
SPDT
HH
7.4A
3.7A
2.9A
—
(38 to 116°C)
(4 to 25°C)
See page 416
➀
HasU.L.approvedadjustabledialstop,factorysetat150°Fmaximum.
TYPES WITH BULBS DIRECTLY INTERCHANGEABLE WITH HONEYWELL (39/16” x 3/8”) No wells included.
SPDT Contact Structure
HH Rated Controls
Switch Action
R-B Open on Rise
R-W Close on Rise
Full
Motor Rating
Valves and
Model
Switch
Electrical
(Full Load)
Relays
Number
Range
Differential
Action
Rating
120 VAC
240 VAC
24 VAC
0.3-12v DC
1131-102 ➀
100to240°F
7to45°F
SPDT
HH
7.4A
3.7A
2.9A
—
(38 to 116°C)
(4 to 25°C)
See page 416
11B18-101 ➀
100 to 240°F
5 to 45°F
Open on Rise
HTV
10.0A
6.0A
6.0A
1.0A
(38 to 116°C)
(3 to 25°C)
See page 416
➀
HasU.L.approvedadjustabledialstop,factorysetat150°Fmaximum.
TYPES WITH TAPERED BULBS (27/16” x 7/16”) All types include 1/2” standard shank well, unless otherwise specified.
CONTRACTOR TIP:
TESTING AUTOMATIC TEMPERATURE CONTROLS To verify a control is opening and closing properly, disconnect
all power before testing. Testing must be performed with the sensing element at a temperature within the setting range of the control. For
mosthydroniccontrolswitharangeof100to240°F,apanofhotwaterissufficienttoreachthecontrolrange.
Attach an ohmmeter or continuity tester across the Open on Rise contacts. Lower the temperature setting dial to the lowest setting.
If the lowest setting is below the temperature of the sensing element minus the differential of the control, the contacts should be open.
Raise the temperature dial slowly. When the setting is raised above the temperature of the sensor, the contacts should close.
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HYDRONIC / APPLIANCE
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