Beckett 7600 AquaSmart Boiler Control - Manual (Page 16)

16
Figure 14 - 7600A/B alternate multi-zone connections
with or without a tankless coil
Water Flow:
Control Wiring (Option 1): 7600B only
CAUTION - Always observe proper polarity when connecting multiple transformers in a
system (connect red terminal of external transformer to TR terminal of AquaSmart).
1. Set “DHWP OFF” (default, see programming section for instructions)
2. Set “C1 on TT” (default, see programming section for instructions)
3. Circulator-on delay will affect all zones. Circulator-off delay will have no effect.
4. Up to two 24 VAC zone valves can be powered
with the 7600B. Add an additional transformer
as shown for every two or less valves over the
original two.
5. Ensure there are no jumpers between the
terminals of the zone valves.
SK1003
3
EXPANSION
TANK
HEATING
ZONE
1
AIR
VENT
HEATING
ZONE
2
HEATING
ZONE
3*
Z Z Z ZONE 1
24 VAC
ZONE
VALVE
ZONE 2
24 VAC
ZONE
VALVE
ZONE 3*
24 VAC
ZONE
VALVE
AIR
SEPARATOR
GENERAL
CIRCULATOR
COLD
WATER
INLET
TR
TW
24 VAC GAS
IGNITION SYSTEM
T
Z
TV
SK10021
L2 L1 C1 C2 ZC ZR B1 B2
NEUTRAL
HOT
120 VAC
BLACK
WHITE
CIRCULATOR
120 VAC
GENERAL
CIRCULATOR
Y TR TH
R R
Y
40 VA
TRANSFORMER
ZONE 1
LOW VOLTAGE
THERMOSTAT
ZONE 1
24 VAC
ZONE VALVE
ZONE 2
LOW VOLTAGE
THERMOSTAT
ZONE 3*
LOW VOLTAGE
THERMOSTAT
Taco
550
ZONE 2
24 VAC
ZONE VALVE
ZONE 3*
24 VAC
ZONE VALVE
Honeywell
V8043E, V8044E
Honeywell
V8043F
MTR
MTR
TH/
TR
3 2
1
MTR
FIELD/MFR.
SUPPLIED
SERVICE
SWITCH
CONTINUED ON NEXT PAGE ►
* Additional zones can be added by duplicating the
plumbing and wiring of zone 3, adding additional
transformers as needed.