Honeywell L4189A- Manual
Honeywell L4189A– Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 4 – INSTALLATION; CAUTION; Location; Insert Sensing Bulb in Well
- Page 6 – Mounting on Panel-Controller with Bracket; WIRING
- Page 7 – To Set Temperature
- Page 8 – CHECKOUT
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
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Summary
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L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS 68-0061—1 6 Fig. 6. Drill holes in the Panel as shown. Mounting on Panel-Controller with Bracket 1. Using controller bracket as a template, mark and drill two holes in the panel. 2. Mount controller with terminals down. 3. Run capillary ne...
L4188A,B; L4189A,B; L6188A-C; L6189A-C AQUASTAT® CONTROLLERS 7 68-0061—1 Fig. 9. High Limit and Low Limit/Circulator Application in an Oil-Fired Hydronic System with domestic hot water. Fig. 10. High Limit and Separate Low Limit and Circulator Application in an Oil-Fired Hydronic System with Domesti...
