External Control Wiring Diagrams - Delta Performance PG-25 Installation And Maintenance Manual

External Wiring
4 Wire Zone Valve
Additional zones
3 Wire Zone Valve
Zone 1
Zone 2
Additional zones
Fig. 33: Multiple Zone Field Wiring Using Zone Valves
H
120
V.A.C.
Transformer
(Power)
24
V.A.C.
Room
Thermostat
Zone 1
Room
Thermostat
Zone 2
Zone
Valve
Additional zones may
be added as shown above
H
120
V.A.C.
Transformer
(Power)
24
V.A.C.
Room
Zone Valve
Thermostat
Room
Thermostat
Zone
Valve
Additional zones may
be added as shown above
N
High Voltage
Zone Valve
1
C
To PERFORMANCE
"Room Thermostat"
Snap Set
N
High Voltage
* Isolation relay
To PERFORMANCE
1
"Room Thermostat"
C
46
*Use isolation relay on 3-wire
zone valve with non-isolated
end switch. Transformer and
the PERFORMANCE control
can burn out if isolation relay is
not used.
Snap Set