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Application 305V-1
Mechanical
Electrical
The Zone Valve Control 305V operates five heating zones. When the thermostat calls for heat, the zone valve opens,
the system pump is turned on and the boiler is fired.
Legend
B1 = Boiler
PS = System Pump
T1 = WiFi Thermostat 561, 562 or 563
T2, T3 = Thermostat 518 or 519
T4 = Generic Digital Power-Stealing Thermostat
T5 = Generic Bi-Metallic Strip Thermostat
V1 to V5 = 2-Wire Zone Valves
DIP Switches
Master
T-stat 1 Priority Off
Exercising On
Post Purge On
Mod Boiler - not applicable
System Pump During Priority Off
System Pump With Member Calls Off
Zone Valve End Switches Off
I n c l u d e d 510 Ω
resistor must be
i n s t a l l e d w h e n
u s i n g p o w e r
stealing thermostats
(e.g. Thermostat T4)
N
B1
PS
305V
V1
V2
V3
V4
V5
Away
C R Rh W
Away
C R Rh W
Away
C R Rh W
R W
R W
MOD
X X
tN4
T1
T2
T3
T4
T5
T6
A
DHW
C R W
BOILER
T-STAT 1
T-STAT 2
T-STAT 3
-
+
tN4
A C R W
tN4
A C R W
T-STAT 4
tN4
A C R W
T-STAT 5
tN4
A C R W
T-STAT 6
EXPANSION
tN4
A C R W
tN4
A B C D E
FUSE 2 FUSE 1
END
SWITCH
MOTOR
POWER
PRIORITY
SYS PUMP
ROOM
RESPONSE
ZONE 1
70 80
90
60
50
100
MOD MAX %
END
SWITCH
MOTOR
ZONE 2
END
SWITCH
MOTOR
ZONE 3
END
SWITCH
MOTOR
ZONE 4
END
SWITCH
MOTOR
ZONE 5
END
SWITCH
MOTOR
ZONE 6
MASTER
MEMBER
OFF
OFF
OFF
T-STAT 1 PRIORITY : ON
EXERCISING : ON
POST PURGE : ON
MOD BOILER : 0-10V
SYSTEM PUMP DURING PRIORITY: ON
SYSTEM PUMP WITH MEMBER CALL: ON
ZONE VALVE END SWITCHES: ON
RESERVED
120 VAC
POWER
PUMP
PUMP 1
SYSTEM
PRIORITY
L
N
L
N
L
N
OFF
OFF
OFF
4-20 mA
B1
T1
T2
T3
T4
T5
PS
V1
V2
V3
V4
V5
L N
