Honeywell Electronic Aquastat L7148F, Руководство пользователя

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PRODUCT DATA
68-0189-2
® U.S. Registered Trademark
Copyright © 2001 Honeywell • All Rights Reserved
L7148F
Electronic Aquastat
®
Controller
GENERAL
The L7148F Electronic Aquastat
®
Controller is an immersion
type hydronic controller that provides high limit protection
and controls circulator, gas valve and optional vent damper
equipment. The complete L7148F system requires a sensor,
immersion well and transformer, all of which must be ordered
separately. See Table 1 for sensor specifications.
An external 120 Vac to 24 Vac transformer is required to
power the L7148F. For total external transformer VA
requirements, add the 10 VA requirement for the control,
gas valve load requirement (connections B1, B2), zone valve
connection requirement (see zone valve specifications), vent
damper requirement and VA requirement for any other
equipment. Total low voltage load must not exceed 4A.
FEATURES
• Available with quick connect or AMP
®
plug
connections. T, TV and Z terminals are provided
in a terminal block with screw connections.
• Vent damper plug optional.
• Separate high limit control not required.
• Software defined minimum/maximum limit settings.
• External 120 Vac to 24 Vac transformer, ordered
separately, is field replaceable and upgradable.
• Patented limit rated 209659A,B,C Sensors are
separately replaceable.
• Communications port for future field added advanced
feature modules.
• Flush mounted to sheet metal rather than spud
mounted to sensing well.
• 3/16 in. (5 mm) B1 quick connect and AMP plug
connections meet ANSI miswiring requirements.
• UL353 Limit Controls approval for both U.S. and
Canada.
• Meets UL 1998 Software Safety Standards.
• Diagnostic LED to assist in system troubleshooting.
L7148F WITH QUICK CONNECTS
(SENSOR NOT INCLUDED)
L7148F WITH PLUG CONNECTIONS
(SENSOR NOT INCLUDED)
Contents
General ............................................................................. 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 3
Adjustment ....................................................................... 5
Operation .......................................................................... 5
Checkout .......................................................................... 11
Troubleshooting ................................................................ 11
This is a legacy product document supported by
Resideo. This product is no longer manufactured.