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Figure 14 (continued) - 7600A/B alternate multi-zone connections
with or without a tankless coil
Control Wiring (Option 2): 7600A 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 delay will affect all zones. Circulator-off delay will have no effect.
4. 24 VAC zone valves cannot be powered directly with the 7600A. Add an additional transformer for every two
or less valves.
5. Ensure there are no jumpers between the terminals of the zone valves.
◄ CONTINUED FROM PREVIOUS PAGE
TR
TW
120 VAC
BURNER OR
GAS IGNITION
SYSTEM
SK10046
L2 L1 C1 C2 ZC ZR B1 B2
NEUTRAL
HOT
120 VAC
BLACK
WHITE
CIRCULATOR
120 VAC
GENERAL
CIRCULATOR
Y
TR TH
RR
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
32
1
MTR
FIELD/MFR.
SUPPLIED
SERVICE
SWITCH
40 VA
TRANSFORMER
* Additional zones can be added by duplicating the
plumbing and wiring of zone 3, adding additional
transformers as needed.