Beckett 7600 AquaSmart Boiler Control - Manual (Page 20)

20
Figure 16 (continued)- 7600A/B multi-zone connections
with Indirect Domestic Hot Water (DHW)
Control Wiring (Option 1): Circulator-On and -Off Delays on DHW Zone Only
1. Set “DHWP on TT” (see programming section for instructions)
2. Set “C1 on TT” (default, see programming section for instructions)
3. Circulator-on and -off delays will only affect DHW zone.
7600A:
120 VAC BURNER OR
GAS IGNITION SYSTEM
7600B:
24 VAC GAS
IGNITION SYSTEM
L2 L1 C1 C2 ZC ZR B1 B2
TR
TW
SK10022
6
5
4
3
2/N
1/H
T
T
ZONE
RELAY
ZONE
1
LOW VOLTAGE
THERMOSTAT
LOW VOLTAGE
THERMOSTAT
ZONE
2
ZONE
RELAY
T
T
1/H
2/N
3
4
5
6
NEUTRAL
HOT
120 VAC
BLACK
WHITE
P1
CIRCULATOR
120 VAC
P2
CIRCULATOR
120 VAC
CIRCULATOR
120 VAC
P3
P4*
CIRCULATOR
120 VAC
4
3
2/N
1/H
T
T
ZONE
RELAY
ZONE
3*
LOW VOLTAGE
THERMOSTAT
DHW
LIMIT
CONTROL
FIELD/MFR.
SUPPLIED
SERVICE
SWITCH
5
6
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* Additional zones can be added by duplicating
the plumbing and wiring of zone 3.