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Honeywell L7224A User Manual
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L7224A,C; L7248A,
C,L OIL AND ELEC
TRIC BOILER ELECTRONIC AQ
UASTAT
®
CONTROLLERS
68-0281—16
8
Fig. 8. L7224A,
C; L7248L single hea
t zone with indirec
t water tank and cir
culator
s. Optional Outdoor Res
et
Module.
C1
B1
ZC
L2
LINE
C2
ZR
L1
B2
T
T3
2
1
M32023A
L1
(HOT)
SENSOR
LINE
VOLT
AGE
CIRCULA
TOR
LINE
VOLT
AGE
OIL BURNER
RELA
Y
L2
OUTDOOR RESET MODULE IS OPTIONAL.
W8735S1000 WIRED OUTDOOR
RESET MODULE SHOWN.
FOR BEST PERFORMANCE SET DUU=”ON”.
1
1 2 3 OT O
T
C7089U
OUTDOOR
SENSOR
1
W8735Y1000 OR
W8735S1000
INDIRECT
T
ANK
CIRCULA
TOR
LINE VOL
T
AGE
INDIRECT
T
ANK AQU
AST
A
T
L1
(HOT)
L2
2
2
7
9
Table of Contents
Specifications
1
Installation Instructions
1
Installation
2
Flush-Mounted Aquastat Replacement
3
Well-Mounted Aquastat Replacement
3
New Installation
3
Replacement Sensor Installation
4
Fuse
4
Wiring
4
Operation
4
Adjusting Settings
5
High/Low Limit Controller
6
Anti Short-Cycle Feature
6
High Limit Controller
6
Frost Protection
7
Thermal Purge Settings
7
Troubleshooting
7
Controller Operating Sequence
9
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Honeywell L7224A Specifications
General
Brand
Honeywell
Model
L7224A
Category
Controller
Language
English
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