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® U.S. Registered Trademark
Copyright © 2001 Honeywell • All Rights Reserved
L8124A,B,C,E,G,L,M
Aquastat® Relays
GENERAL
These immersion type controllers are for use with forced
hydronic heating systems that include domestic hot water
service.
FEATURES
• L8124 Aquastat® Relays provide high limit, low limit,
and circulator control for maintaining boiler
temperatures.
• L8124 Aquastat Relays can provide multizone control
by using a separate circulator and R845 Relay for
each zone.
• All L8124 Aquastat Relays mount directly on the boiler.
• L8124E,G and L have large transformers and extra
terminals for supplying power to low voltage zone
valves.
• L8124M is for use in a wood-coal/gas-oil multifuel
heating system. Circulator is independently controlled
by the thermostat.
General .............................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Wiring ...............................................................................
Operation .......................................................................... 10
Setting And Checkout ....................................................... 10
Checkout .......................................................................... 14
Material Safety Data Sheet (MSDS) ................................. 14
PRODUCT DATA
Contents
1
1
2
2
5
7
60-2061-10
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Table of Contents
Related Manuals for Honeywell Aquastat L8124G
Summarization of Contents
General Product Information
General Description
Overview of immersion type controllers for hydronic heating systems with domestic hot water.
Key Features
Highlights of Aquastat Relays including high/low limit, multizone control, and specific model capabilities.
Product Specifications and Ordering
Detailed Specifications
Technical specifications for Aquastat Relays including limits, differentials, dimensions, and approvals.
Ordering Information
Guidance on how to order replacement products and contact customer support.
Installation Procedures
Fire or Explosion Hazard Warning
Warning about severe injury, death, or property damage during installation.
Electrical Shock Hazard Warning
Warning about severe injury, death, or property damage during installation.
Mounting Standard Models
Instructions for installing standard models on boiler tapping.
TRADELINE Models Installation
Instructions for installing TRADELINE models, including using compound and adapter.
Operation and Settings
High Limit Controller Function
Explanation of how the high limit operates to control burner and water temperature.
Low Limit and Circulator Control
Details on how low limit and circulator controllers manage burner and pump operation.
Setting and Checkout Procedure
Guidance on setting the device and verifying its functionality.
Setting Stop Installation
Instructions for installing a setting stop to limit knob adjustment.
Final Configuration and Verification
Heat Anticipator Setting
Setting the thermostat heat anticipator parameter.
System Checkout Procedure
Verifying all control functions through at least one cycle.
Material Safety Data Sheet (MSDS)
Product and Company Identification
Details about the heat conductive compound and its manufacturer.
Hazards and First Aid Measures
Covers hazard identification, first aid, fire fighting, and release measures for the compound.
Properties and Handling Information
Details physical properties, handling, storage, and exposure controls for the compound.
Stability, Safety, and Disposal
Covers stability, toxicology, ecology, disposal, transportation, and regulatory info.
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