Figure 14 (continued) - 7600A/B alternate multi-zone connections with or without a tankless coil
*Additional zones can be added by duplicating the plumbing and wiring of zone 3, adding additional transformers as needed.
◄CONTINUED FROM PREVIOUS PAGE
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.
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.
SK10046
TW
TR
| L2 L1 C1 C2 ZC ZR B1 B2 | |
NEUTRAL WHITE |
| |
120 VAC | BLACK | GENERAL |
| ||
HOT FIELD/MFR. | CIRCULATOR | |
| SUPPLIED | CIRCULATOR |
| SERVICE | 120 VAC |
| SWITCH |
|
| ZONE 1 |
| ZONE 2 |
|
| ZONE 3* |
| LOW VOLTAGE | LOW VOLTAGE |
| LOW VOLTAGE | ||
| THERMOSTAT | THERMOSTAT |
| THERMOSTAT | ||
ZONE 1 |
| ZONE 2 |
| ZONE 3* |
|
|
24 VAC |
| 24 VAC |
| 24 VAC |
|
|
ZONE VALVE | ZONE VALVE |
| ZONE VALVE |
| ||
Taco |
| Honeywell |
| Honeywell |
| |
550 |
| V8043E, V8044E | V8043F |
|
| |
| 1 | Y MTR | Y | TR | TH | TH/ |
| MTR | TR | ||||
|
|
| MTR | |||
|
|
|
| |||
|
|
|
|
| ||
3 | 2 | R | R |
|
|
|
40 VA TRANSFORMER
120 VAC |
| |
BURNER OR | 40 VA | |
GAS IGNITION | ||
TRANSFORMER | ||
SYSTEM | ||
|
16
