Honeywell Aquastat L8148J User Manual

PRODUCT DATA
60- 2278- 9
® U.S. Registered Trademark
Copyright © 2001 Honeywell • All Rights Reserved
L8148A,E,J
Aquastat® Relays
APPLICATION
The L8148 Aquastat® Relays are immersion type hydronic
controllers that combine high limit protection with switching
relay control of burner and circulator motors.
FEATURES
• All models are used with a 24 Vac thermostat.
• Models include special terminals for adding remote,
low limit temperature control.
• L8148E,J have terminals for adding zone valve system
wiring.
• L8148E models are available with plug for connecting
Aquastat¨ Relay directly to D892/M892 Vent Dampers.
• All devices include transformer to provide power for
the low voltage control circuit. Different models
provide switching of line, low, or millivoltage burner
circuit.
• Case available for horizontal or vertical mounting.
• Combinations of two insulation and two insertion well
lengths are available.
Horizontal
Mounting
Vertical
Mounting
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 4
Setting and Adjustments .................................................. 12
Operation .......................................................................... 12
Checkout .......................................................................... 12
http://waterheatertimer.org/Contactors-relays.html

Honeywell Aquastat L8148J Specifications

General

Type	Aquastat Relay
Voltage	120 VAC
Mounting	Vertical
Application	Boiler Control
Switch Type	SPDT
Electrical Connections	Screw Terminal
Approvals	UL, CSA
Temperature Range	100°F to 240°F
Differential	10°F

Summary

Specifications

TRADELINE Models

Models selected and packaged for ease of handling, stocking, and maximum replacement value.

Additional Features

Specific features like heat-conductive compound, mounting options, and dial stop.

Standard Models

Information on standard model availability and specifications.

Electrical Ratings

Details on circulator and burner control circuit electrical ratings.

Immersion Well Dimensions

Specifications for immersion well fittings and depth.

Maximum Bulb Temperature

Specifies the maximum permissible temperature for the sensing bulb.

Maximum Ambient Temperature

Maximum ambient temperature limits for the device operation.

Installation

Mounting (Standard Models)

Procedure for mounting standard models, including boiler tapping and well installation.

Mounting (TRADELINE Models)

Procedure for mounting TRADELINE models using adapters.

Wiring

Setting and Adjustments

Setting

Instructions for setting the high limit switch and adjusting models with an optional dial stop.

Operation

Checkout