Honeywell AQUASTAT L6189A-C User Manual download pdf

PRODUCT DATA

68-0061—1

L4188A,B; L4189A,B; L6188A-C;

L6189A-C Aquastat

Controllers

APPLICATION

Aquastat

Controllers are bulb-type providing operating or

limit control of water temperature in hot water heating systems

and water heaters.

FEATURES

• L4188 and L4189 provide spst switching for high and

low limit control.

• L6188 and L6189 provide spst switching for low limit

and circulator control.

• L4188, L6188 models are direct-mounted.

• L4189, L6189 models are remote bulb.

• Diaphragm-operated switch breaks on temperature

rise (spst and normally closed spdt contacts).

• Compact controller case for application flexibility.

• 3/16 in. diameter bulb for faster response.

• All models available with or without setting knob.

Models without knob are adjusted with screwdriver.

• Choice of manual or auto reset. Auto reset models

available with fixed or adjustable differential.

• 1/4 in. male quick-connects standard; combination

screw and 1/4 in. quick-connects available.

• Field adjustable high or low limit stop available.

• Bracket for surface mounting available on remote bulb

models.

• Capillary on remote bulb models available in several

lengths.

• Immersion well with 1/2 in. NPT spud available as

accessory.

Direct Mount with

Setting Knob

Contents

Application......................................................................... 1

Features ............................................................................ 1

Specifications .................................................................... 2

Ordering Information ......................................................... 2

Installation ......................................................................... 4

Wiring ................................................................................ 6

Operation........................................................................... 7

Adjustments....................................................................... 7

Checkout ........................................................................... 8

Remote Bulb with

Screwdriver Slot

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Controllers

PRODUCT DATA68-0061—1L4188A,B; L4189A,B; L6188A-C;L6189A-C Aquastat® ControllersAPPLICATIONAquastat® Controllers are bulb-type providing operating or

Page 2 - SPECIFICATIONS

L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS68-0061—1 2ORDERING INFORMATIONWhen purchasing replacement and modernization products from

Page 3 - IMMERSION WELLS

L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS3 68-0061—1Ambient Temperature Range: 32° to 158° F (0° to 70° C).Mounting: Must be mounte

Page 4 - INSTALLATION

L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS68-0061—1 4Accessories (order separately): Capillary compression fittings.Part No. 104484A

Page 5 - 5 68-0061—1

L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS5 68-0061—1Mounting Behind Panel-Controller with KnobNOTE: The panel can be up to 5/64 in.

Page 6 - MOUNTING TEMPLATE

L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS68-0061—1 6Fig. 6. Drill holes in the Panel as shown.Mounting on Panel-Controller with Bra

Page 7 - ADJUSTMENTS

L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS7 68-0061—1Fig. 9. High Limit and Low Limit/Circulator Application in an Oil-Fired Hydroni

Page 8 - CHECKOUT

Automation and Control SolutionsHoneywell International Inc. Honeywell Limited-Honeywell Limitée1985 Douglas Drive North 35 Dynamic DriveGolden Valley

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Honeywell AQUASTAT L6189A-C User Manual

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