Sentinel
7
ELECTRICAL WIRING
DANGER:
Before wiring, always turn off electric power
supply,
1. Power Supply
A separately fused circuit is recommended. Use a standard
15 Amp. fuse or breaker and 14 gauge conductors in BX
cable or circuit.
Provide disconnect means and overload protection as
required. See boiler wiring diagram (Figure 7).
Boiler must be electrically grounded in accordance with
requirements of the authority having jurisdiction, or, in the
absence of such requirements, with the National Electrical
Code, ANSI/NFPA 70-latest edition.
2. Power Connection
Connect hot and neutral to L1 and L2 terminal of the boiler
control (See figure 7).
Connect ground wire to ground screw inside boiler control.
3. Thermostat Connections
Thermostat connections must be to T and TV screw termi-
nals of boiler temperature control (See Figure 4).
4. Multi Zoning
For pump zoning system, see Figures 8 and 9, for zone
valve system, see Figure 10. DO NOT use boiler trans-
former to power external accessories like zone valve and
relays, overload and/or burned-out transformer and boiler
malfunction can result.
Figure 7
ELECTRICAL CONTROLS AND
WIRING
A. The electrical power to the
boiler must be on a separate-
ly fused and live circuit.
B. If an external electrical source
is utilized, the boiler, when
installed, must be electrically
grounded in accordance with
the requirements of the
authority having jurisdiction
or, in absence of such
requirements, with the Cana-
dian Electric Code – CSA-
C22.1, Part 1 – latest edition.
C. Basic control wiring diagrams
are supplied. Other control
systems may be factory sup-
plied, see User's Information
Manual and Instructions
packed with control system
supplied.
D. After placing the boiler in
operation, the safety shutoff
device must be tested. See
page 16 safety check.
CAUTION:
LABEL ALL WIRE PRIOR TO DISCONNCTION WHEN SERVICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
"VERIFY PROPER OPERATION AFTER SERVICING".
: PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED
WITH THE APPLIANCE MUST BE REPLACED.
IT MUST BE REPLACED WITH TYP 105 OR
ITS EQUIVALENT.
IGNITER CABLE
PILOT GAS PIPE
ELECTRIC
IGNITION
PILOT
CIRCULATOR
L2
L1
C1
C2
B1
HONEYWELL IGNITION MODULE
24V(GND)
24V
I2
B2
VENT DAMPER
HARNESS
I1
WIRE LEGEND:
FACTORY WIRED
FIELD WIRED, FIELD SUPPLIED
I
MV PV
MV
GND
PV
MV/PV
MV
GAS VALVE
GND
(BURNER)
PV
ECONOMY
HI TEMP
Z
T
TV
HYDROLEVEL HYDROSTAT CONTROL
MODEL 3200
PLUG
LO TEMP
24V
THERMOSTAT
I
120V
HOT
NEUTRAL
46 1014 000
BLOCKED VENT
SAFETY SWITCH
ROLL-OUT
SWITCH
RED
WHITE
BLK
BLUE
B
LA
C
K
WHITE
BLACK
GREEN
GREEN
RED
W
H
TE
RED
RED
RED
WIRING DIAGRAM FOR SENTINEL(SE) BOILERS
