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Honeywell L41.. Product Handbook

L41/l61 series
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L41../L61.. SERIES
THERMOSTAT (AQUASTAT)
APPLICATION
The L41../L61.. series aquastats are primarily designed for
application on water filled heating systems and systems for hot
water supply, mainly domestic use.
General
Description of device functions ......................................... 2
Description ........................................................................ 3
Overview/selection guide ................................................. 4
Features ............................................................................ 5
Aquastat series
L4188 - L6188 .................................................................. 6
L4189 - L6189 .................................................................. 8
L6190 ............................................................................. 10
L4191 - L6191 ................................................................ 12
L6188A 2044 Tradeline .................................................. 14
Performance .................................................................... 16
Construction .................................................................... 17
Various
Accessories and spare parts ........................................... 18
Quality assurance statement ........................................... 20
Standards and approvals ................................................ 20
Ordering information ........................................................ 21
1
PRODUCTION HANDBOOK
Contents
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  Summary of Contents for Honeywell L41..

  • Page 1: Table Of Contents

    L41../L61.. SERIES THERMOSTAT (AQUASTAT) PRODUCTION HANDBOOK APPLICATION The L41../L61.. series aquastats are primarily designed for application on water filled heating systems and systems for hot water supply, mainly domestic use. Contents General page Description of device functions ......... 2 Description ................ 3 Overview/selection guide ..........
  • Page 2: Description Of Device Functions

    Aquastats thermostats The Micro Switch mechanism is intended to control electrically a burner, a relay, etc. in dependency of the temperature Honeywell manufactures a coprehensive range of water changes in a heating system. temperature thermostats (trade name Aquastat) for controlling...
  • Page 3: Description

    DESCRIPTION The L41../L61.. series aquastats can be divided in the The L41../L61.. series aquastats are sensitive water tempera- following main types: ture control, which are provided with a liquid filled sensing sys- • Controller tem. Controls the water temperature in accordance with the The following main types are available: setting of an external knob (TÜV-type TR) •...
  • Page 4: Overview/Selection Guide

    OVERVIEW/SELECTION GUIDE Application Single Aquastat thermostats Dual Aquastat thermostats Controller or limiter thermostat Controller and limiter thermostat with standard sensing element Direct mount (immersion) L4188A, B, C L6188A, B, C L4191A, B and L6191A, B 25 ... 95°C 25 ... 95°C 25 ...
  • Page 5: Features

    FEATURES • 6.3 mm quick connect terminals for receptacles • Mounting either in a horizontal or vertical position. • Housing is provided with two mounting holes which are suitable for M4 thread forming screws, for mounting on a control panel. •...
  • Page 6: L4188 - L6188

    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. 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.
  • Page 7: Specifications

    L4188 - L6188 SINGLE AQUASTAT - DIRECT IMMERSION Specifications Ambient temperature limits Immersion wells, see page 18 0 ... 70°C Electrical connection 6.3 mm spade terminals Enclosure IP40 Electrical rating SPST SPDT 10 A at 250 Vac, resistive load 2.5 A at 250 Vac, inductive load 15 A at 250 Vac, locked motor Fig.
  • Page 8: L4189 - L6189

    L4189 - L6189 SINGLE AQUASTAT - PANEL MOUNTING (IMMERSION) APPLICATIONS AND ORDERING INFORMATION Application L4189 and L6189 are sensitive, immersion-type water temperature thermostats for controlling and limiting boiler water temperature in hydronic heating systems. These thermostats are designed for panel mounting and are supplied with a remote bulb and a liquid-filled sensing element which fits into an immersion well (order separately) for mounting into a boiler, tank or other vessel.
  • Page 9 L4189 - L6189 SINGLE AQUASTAT - PANEL MOUNTING (IMMERSION) SPECIFICATIONS AND DIMENSIONS Specifications Ambient temperature limits Accessories 0 ... 70°C Immersion wells, see page 18 Electrical connections 6.3 mm spade terminals Enclosure IP40 Electrical rating 10 A at 250 Vac, resistive load SPST SPDT 2,5 A at 250 Vac, inductive load...
  • Page 10: L6190

    L6190 SINGLE AQUASTAT - SURFACE MOUNTING APPLICATION AND ORDERING INFORMATION Application The L6190 is a sensitive water temperature thermostat designed for surface mounting on domestic hot water cylinders or pipe work. The SPDT switching action is accomplished by a snap-action microswitch actuated by the temperature sensing element.
  • Page 11 L6190 SINGLE AQUASTAT - SURFACE MOUNTING SPECIFICATIONS AND DIMENSIONS Specifications Ambient temperature limits Capilliary length 0 ... 70°C 55 mm Electrical connection 6.3 mm spade terminals or screw terminals Enclosure IP40 Electrical rating 10 A at 250 Vac, resistive load SPDT 2,5 A at 250 Vac, inductive load 15 A at 250 Vac, locked motor...
  • Page 12: L4191 - L6191

    L4191 - L6191 DUAL AQUASTAT - DIRECT IMMERSION APPLICATION AND ORDERING INFORMATION 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.
  • Page 13 L4191 - L6191 DUAL AQUASTAT - DIRECT IMMERSION SPECIFICATIONS AND DIMENSIONS Specifications Ambient temperature limits 0 ... 70°C Electrical connection 6.3 mm spade terminals Enclosure IP40 Electrical rating: SPST SPST SPST SPDT 10 A at 250 Vac, resistive load Control Limit Control Limit...
  • Page 14: L6188A 2044 Tradeline

    L6188A 2044 Tradeline Aquastat is a sensitive immersion-type water temperature thermostat for regulating and limiting boiler water temperature in hydronic heating systems. The Honeywell Tradeline technique of using adapters enables the L6188A 2044 Aquatat thermostat to field replace Honeywell Aquastat thermostats as well as many competitive devices (using the existing well*).
  • Page 15 L6188A 2044 TRADELINE SINGLE AQUASTAT - DIRECT IMMERSION SPECIFICATIONS AND DIMENSIONS Specifications Temperature range Accessories 40 ... 110°C Immersion wells, see page 18 Differential 4 ... 10 (adjustable) Limit stops: Low limit: adjustable, factory set at 50°C High limit: adjustable, factory set at 95°C Ambient temperature limits SPDT 0 ...
  • Page 16: Performance

    PERFORMANCE Fixed switch differential Ambient temperature error On controls and recycling limits a fixed differential of: Ratio of ambient error Max. setting Min. setting 4 ± 1.5°C, 8 ± 3°C or With capilliary lenth of 1000 mm 1 : 5.5 1 : 8.5 12 ±...
  • Page 17: Construction

    CONSTRUCTION All aquastats have the following common parts Dual direct mounted Aquastat needs the following extra parts • Thermoplastic housing of mainly rectangular form. This • Two single thermoplastic conduit boxes (a right and a left housing is the carrier of the Micro Switch mechanism, the one) with cable entry.
  • Page 18: Accessories And Spare Parts

    ACCESSORIES AND SPARE PARTS Single well assembly Description Ordernumber Packing qty (pcs) Spud thread: ” BSPT 45.900.409-003 Maximum insertion length (including thread): 105 mm Suitable for Ø 5 mm sensor Spud thread: ” BSPT 45.900.409-006 Maximum insertion length (including thread): 170 mm Suitable for Ø...
  • Page 19 Miscellaneous Description Ordernumber Packing qty (pcs) Knob assembly 45.900.427-002 Scale range: 110 ... 230°F, high limit stop: 180°F Knob assembly 45.900.427-003 Scale range: 40 ... 110°C, high limit stop: 82°C Strap set for L6190 surface mounted aqustat 45.900.443-001 Strap length: 2000 mm Description Part number number...
  • Page 20: Quality Assurance Statement

    Assembly processes are guided by work instructions. Patrol and certified Quality System. inspections form part of the assembly processes. The quality system is described in the Honeywell Combustion At the end of the assembly phase, all aqustats are leakage Controls Center Quality Assurance Programme and its related and performance tested/adjusted.
  • Page 21: Ordering Information

    ORDERING INFORMATION When ordering specify • Setting point(control and limit if necessary) • Type of contact (SPDT/SPST/ electrical rating) • Number of sensing point (single/dual) • Type of mounting (direct immersion/panel/surface) • Differential (adjustable/fixed/manual reset) • Capillary length Ordering Specification number L 4 1 X A 9999 L: Aquastat...
  • Page 22 Home and Building Control Combustion Control Center Europe Honeywell BV Phileas Foggstraat 7 7821 AJ Emmen The Netherlands Tel.: +31 (-)591 695911 Fax: +31 (-) 591 695200 http://europe.hbc.honeywell.com EN2R-9005 0406R3-NE...

This manual is also suitable for:

L61.. seriesL4188L6188L6190L4189L6189 ... Show all