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Honeywell L7224A Installation Instructions Manual page 14

Oil and electric boiler electronic aquastat controllers
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L7224A,C; L7248A,C,L OIL AND ELECTRIC BOILER ELECTRONIC AQUASTAT
W8735Y1000 OR
W8735S1000
1 2 3 OT OT
8
R7184/R7284
5
ENVIRACOM™
TERMINAL
TO REMOTE
ALARM
2
CIRCUIT
LEGEND
SCREW TERMINAL
SOLDERLESS WIRE CONNECTION
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2
OPTIONAL FEATURE ON SELECT MODELS.
3
REFER TO DEVICE LABEL FOR WIRE COLOR CODE.
4
VALVE IS OPTIONAL ON SPECIFIED MODELS.
5
ENVIRACOM™ TERMINAL 3 IS ALSO THE FIRST THERMOSTAT TERMINAL.
Fig. 12. L7224/L7248 multizone system with Outdoor Reset and Domestic Hot Water Modules (indirect tank
68-0281—16
W8735S1008
1 2 3 TS TS
C7089U
7
6
OUTDOOR
SENSOR
32003971-003
TEMPERATURE
SENSOR
T
LIMIT
T 3
L1
L2
2
1
3
BURNER
BURNER
MOTOR
MOTOR
3
IGNITER
IGNITER
3
VALVE
VALVE
CAD
CAD
CELL
CELL
JUNCTION
BOX
1/4 IN. (6 MM) QUICK CONNECT TERMINAL
L1
(HOT) L2
1
L7224
SENSOR
ZR
L1
LINE
VOLTAGE
L2
CIRCULATOR
4
C2
B2
C1
B1
ZC
6
OPTIONAL OUTDOOR RESET MODULE AND OUTDOOR SENSOR.
W8735S1000 WIRED OUTDOOR RESET MODULE SHOWN.
7
OPTIONAL DOMESTIC HOT WATER MODULE.
8
WIRE ONLY THE ENVIRACOM TERMINALS (1, 2, 3) ON OIL PRIMARY
IF CONNECTING TO REMOTE DIAGNOSTICS, OTHERWISE CONNECT
A JUMPER BETWEEN THE TT TERMINALS.
9
ZONE PANEL TERMINALS MAY HAVE DIFFERENT LABEL. CHECK
PANEL MANUFACTURER SPECIFICATIONS FOR WIRING INSTRUCTIONS.
applications).
14
®
CONTROLLERS
MULTI-ZONE
RELAY PANEL
T T
9
T
T 3
2
1
M32024A

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This manual is also suitable for:

L7224cL7248lL7248aL7248c