Watts Tekmar Zone Valve Control 304V, Installation And Operation Manual

Page: 6 / 12

6 of 12 © 2019 tekmar 304V_D - 10/19
Application 304V–3
Mechanical ---------------------------------------------------------------------------------------------
Electrical -----------------------------------------------------------------------------------------------
A1 = DHW Tank Aquastat
B1 = Modulating Condensing Boiler
BP = Boiler Pump
PS = System Pump
Away
C R Rh W
Away
C R Rh W
+ T T -
Away
C R Rh 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
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
PS L
L
N
N
P1
V1 V2 V3 V3 V4 V5 V6
A1
T1
T4 T5
T6
T7
T2 T3
N L N
Power
L N
B1
P1
A1
Expansion
PS
V2 V1 V3 V4 V5 V6 V7
BP
304V 304V
Two Zone Valve Control 304V operate seven heating zones and a domestic hot water tank. When a thermostat calls for heat,
the zone valve opens. The hot water tank is heated using a pump when the tank aquastat calls for heat. The master control
operates the system pump and the boiler when there is a call for heat on either the master or member control.
Master
T-stat 1 Priority = On
Exercising = On
Post Purge = On
Member
T-stat 1 Priority = Off
Exercising = On
Post Purge = On
Mod Boiler = depends on boiler
System Pump During Priority = Off
System Pump With Member Calls = On
Zone Valve End Switches = On
Mod Boiler = depends on boiler
System Pump During Priority = Off
System Pump With Member Calls = Off
Zone Valve End Switches = On
End switch jumper required for Zone 1 when using a
pump and Zone Valve End Switch DIP = On
Legend
P1 = Zone 1 DHW Tank Pump
T1 to T3 = WiFi Thermostat 561 or 562
T4, T5 = Thermostat 518 or 519
T6 = Generic Digital Power-Stealing Thermostat
T7 = Generic Bi-Metallic Strip Thermostat
V1 to V7 = 4-Wire Zone Valves
DIP Switches - Master DIP Switches - Member