PRODUCT DATA
® 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
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