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13
AquaSmart Boiler Control Manual
Figure 13 - 7600A/B multi-zone connections
with or without a tankless coil
Water Flow:
Control Wiring (Option 1): Circulator-On and -Off Delays on Zone 1 ONLY
1. Set “DHWP OFF” (default, 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 zone 1
CONTINUED ON NEXT PAGE ►
L2 L1 C1 C2 ZC ZR B1 B2
TR
TW
SK10020
6
5
4
3
2/N
1/H
T
T
ZONE
RELAY
ZONE
2
LOW VOLTAGE
THERMOSTAT
NEUTRAL
HOT
120 VAC
BLACK
WHITE
ZONE
1
LOW VOLTAGE
THERMOSTAT
P1
CIRCULATOR
120 VAC
P2
WHITE
RED
7600A:
120 VAC BURNER OR
GAS IGNITION SYSTEM
7600B:
24 VAC GAS
IGNITION SYSTEM
FIELD/MFR.
SUPPLIED
SERVICE
SWITCH
CIRCULATOR
120 VAC
6
5
4
3
2/N
1/H
T
T
ZONE
RELAY
ZONE
3*
LOW VOLTAGE
THERMOSTAT
P3*
CIRCULATOR
120 VAC
SK10031
P1
COLD
WATER
INLET
EXPANSION
TANK
HEATING
ZONE
1
AIR
SEPARATOR
AIR
VENT
HEATING
ZONE
2
P2
P3*
HEATING
ZONE
3*
* Additional zones can be added by duplicating
the plumbing and wiring of zone 3.