Beckett 7600 AquaSmart Boiler Control - Manual (Page 21)

21 AquaSmart Boiler Control Manual
L2 L1 C1 C2 ZC ZR B1 B2
TR
TW
SK10024
6
5
4
3
2/N
1/H
T
T
ZONE
RELAY
LOW VOLTAGE
THERMOSTAT
ZONE
1
ZONE
RELAY
T
T
1/H
2/N
3
4
5
6
NEUTRAL
HOT
120 VAC
BLACK
WHITE
P1
CIRCULATOR
120 VAC
P3
CIRCULATOR
120 VAC
4
3
2/N
1/H
T
T
ZONE
RELAY
ZONE
2
LOW VOLTAGE
THERMOSTAT
LOW VOLTAGE
THERMOSTAT
ZONE
3*
ZONE
RELAY
T
T
1/H
2/N
3
4
5
6
CIRCULATOR
120 VAC
P4*
CIRCULATOR
120 VAC
P2
DHW
LIMIT
CONTROL
7600A:
120 VAC BURNER
OR GAS IGNITION
SYSTEM
7600B:
24 VAC GAS
IGNITION SYSTEM
FIELD/MFR.
SUPPLIED
SERVICE
SWITCH
5
6
Figure 16 (continued) - 7600A/B multi-zone connections
with Indirect Domestic Hot Water (DHW)
◄ CONTINUED FROM PREVIOUS PAGE
Control Wiring (Option 2): Circulator-On Delay on All Zones
1. Set “DHWP OFF” (default, see programming section for instructions)
2. Set “C1 on ZR” (see programming section for instructions)
3. Circulator-on delay will affect all zones. Circulator-off delay will have
no effect.
4. DHW zone will not have priority over heating zones.
CONTINUED ON NEXT PAGE ►
* Additional zones can be added by duplicating
the plumbing and wiring of zone 3.