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High Limit Aquastat Controller
High Limit Aquastat Controller

L4006E1125/U

High Limit Aquastat Controller

Find Equivalent or Replacement Products.

This product is available in the US only.

  • Product Info
  • Literature

Overview

Aquastat® Controllers from Resideo are immersion type devices for limiting or regulating the temperature of liquids in boilers, storage tanks, and other applications where temperature control is required. L4006 are used in applications that utilize the existing wells

Features

  • Totally enclosed Micro Switch™ snap-acting switches operate on temperature rise to setpoint.
  • Visible control point scale and external adjustment screw permit easy setting.
  • Horizontal or vertical insertion of the sensing element.
  • Direct or well immersion of the sensing element.
  • Models available for strap-on mounting.
  • Remote bulb model may be used to sense air temperature in ducts and in outside air sensing applications.
  • Select models include heat-conductive compound.
  • Select models have wells.
  • UL limit rated device.

Product Specifications

Hazmat Information
UN 1294, TOLUENE, 3, II
Application
High Limit; Manual Reset
Dimensions (in.)
Case--5 5/8 in. high x 2 in. wide x 2 1/8 in. deep
Dimensions (mm)
Case--143 mm high x 51 mm wide x 54 mm deep
Temperature Range (F)
Maximum--150 F
Temperature Range (C)
Maximum--66 C
Mounting
Horizontal or Vertical
Electrical Ratings
Millivolt--0.25 A @ 0.25 to 12 Vdc; At Full Load-- 8A @ 120 Vac: 5.1A @ 240 Vac; At Locked Rotor-- 48A @ 120 Vac: 30.6A @ 240 Vac
Approvals, Underwriters Laboratories Inc.
UL Component Recognized: File No. MP466, Vol. 6, Sec.1, Guide No. MBPR2
Approvals, Canadian Standards Association
Certified: File No. LR95329-1
Operating Temperature Range (F)
100 F to 200 F
Operating Temperature Range (C)
38 C to 93 C
Bulb Size (in.)
3/8 in. x 2 7/8 in. copper
Bulb Size (mm)
10 mm x 73 mm copper
Differential Temperature (F)
Manual Reset
Differential Temperature (C)
Manual Reset
Switching Action
SPST, contacts break on temperature rise.
Approvals, American Gas Association
AGA Certified
Capillary Length (in.)
3 in.
Capillary Length (mm)
76 mm

Marketing Collateral

Sales/Promotional Materials-Resideo Hydronic Heating Solutions Brochure (French)

Sales/Promotional Materials-Resideo Hydronic Heating Solutions Brochure (English)

Sales/Promotional Materials-Cross Reference Guide for Residential Combustion Heating and Cooling Parts (English)

Wiring-Typical oil-fired gravity system

Wiring-Typical systems with 120 volt electric heat primaries

Wiring-Typical oil-fired hydronic heating system

Wiring-Typical gas-fired system with domestic hot water

Wiring-Operation of L6008G

Wiring-Operation of L4008L

Wiring-L6008A used to control cooling equipment and indicating light.

Wiring-Typical wiring hookup

Wiring-Typical connection diagram for an oil fired hydronic heating system

Wiring-Typical oil-fired hydronic system with domestic hot water.

Wiring-Oil & Hydronic Training

Wiring-Oil & Hydronic Training

Wiring-Oil & Hydronic Training

Wiring-Oil & Hydronic Training

Wiring-Oil & Hydronic Training

Dimension-Approximate immersion well dimensions in in. (mm) for all models except L4006C a

Dimension-Approximate boiler fitting and bulb dimensions in in. (mm) for L4006C and L6006B

Dimension-Approximate installation dimensions in in. (mm) for remote bulb models

Dimension-Approximate case installation dimensions in in. (mm) for direct insertion models

Dimension-Approximate installation dimensions in in. (mm) for surface mount models.

Dimension-Aquastat(r) Controller

Technical Documents

Product Data and Specifications-Product Data for L4006,7,8; L6006,7,8 Aquastat® Controllers (English)

Installation Materials-Installation Instruections for L4006, L4007 Aquastat Controllers (English, French)

Installation Materials-Installation Instructions for L4006 L4006A, L4006B, L4006E, L4006H, Regulateurs Aquastat (French)

Installation Materials-Installation Instructions for L4006 L4006A, L4006B, L4006E, L4006H Aquastat Controllers (English)

Maintenance/Product Reference Materials-Residential Combustion Application Selection and Cross-Reference Guide (English)