TriangleTube 399 Solo - Manual (Page 41)

35
External Wiring
H N
High Voltage
120
V.A.C.
24
V.A.C.
Room
Thermostat
Room
Thermostat
Zone 1
Zone 2
Additional zones
Additional zones may
be added as shown above
To Prestige
24V Terminal Strip
Transformer
(Power)
Zone
Valve
Zone Valve
7 8
To Prestige
24V Terminal Strip
H N
High Voltage
120
V.A.C.
24
V.A.C.
Room
Thermostat
Room
Thermostat
Zone 1
Zone 2
Additional zones
Additional zones may
be added as shown above
Transformer
(Power)
Zone
Valve
Zone Valve
* Isolation relay
7
8
*Use isolation relay on
3-wire zone valve with
non-isolated end switch.
Transformer and the Prestige
MCBA control can burn out
if isolation relay is not used.
NOTICE:
4 Wire Zone Valve
3 Wire Zone Valve
Fig. 22: Multiple Zone Field Wiring Using Zone Valves