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L7224U OIL AND ELECTRIC BOILER ELECTRONIC AQUASTAT
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.
OPTIONAL FEATURE ON SELECT MODELS.
2
3
REFER TO DEVICE LABEL FOR WIRE COLOR CODE.
4
VALVE IS OPTIONAL ON SPECIFIED MODELS.
Fig. 12. L7224U single zone system with circulator, indirect water tank and EnviraCOM™ thermostat.
MATERIAL SAFETY DATA SHEET
Section 1. Product And Company Identification
Product Name: Heat Conductive Compound
MSDS ID: DS9021
Synonyms: MS1699
Product Use: Heat conductive material used to enhance
contact and heat transfer in temperature sensor
applications.
Resideo Technologies, Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
69-1720EFS—13
3
2
TH9421C
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
®
CONTROLLER
W8735Y1000 OR
W8735S1000
1
1 2 3 OT OT
C7089U1006
6
OUTDOOR
SENSOR
L1
2
3
1
(HOT) L2
1
L7224
SENSOR
7
ZR
L1
LINE
VOLTAGE
L2
CIRCULATOR
4
C2
B2
C1
B1
ZC
5
ENVIRACOM™ TERMINAL 3 IS ALSO THE FIRST THERMOSTAT TERMINAL.
6
OPTIONAL OUTDOOR RESET MODULE AND OUTDOOR SENSOR.
W8735S1000 WIRED OUTDOOR RESET MODULE SHOWN.
7
DUU MUST BE SET TO "ON" ON THE AQUASTAT.
Date Released: October 8, 1999
Customer Response Center: 800-328-5111
Emergency Telephone Information: 888-809-3787
NFPA Ratings:
Health 0; Flammability 1; Reactivity 0; Personal
Protection B
14
LINE VOLTAGE
INDIRECT
TANK AQUASTAT
INDIRECT
TANK
CIRCULATOR
L2
T
T 3
2
1
M32025B
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