Submittal Sheet

Job __________________________
Designer ______________________
Contact _______________________
304V
_
C
11/16
Zoning Replaces: 10/16
Zone Valve Control 304V
Submittal
© 2016 tekmar 304V
_
C - 11/16 1 of 2
Features --------------------------
• RoomResponse
TM
signal (Patent Pending)
• Compatible with all low voltage thermostats
• Compatible with 2, 3, and 4-wire zone valves
• Unlimited zone expansion
• Zone priority
• Priority override
• Pump exercising
• Post purge
• LED for each zone, priority, end switch and
RoomResponse
TM
• Away signal shared between tekmar thermostats
• Four ground screws
• Top, bottom and back conduit knockouts
• Fuses protect transformers and pumps
• Two spare fuses included
• CSA approved
Specifications -----------------------------------------------------
The Zone Valve Control 304V connects up to four thermostats and operates zone valves to provide heating to a zoned
hydronic heating system. The 304V operates a system pump whenever a zone valve opens. Zone 1 can operate either
a zone valve or a circulator to provide heat to an indirect domestic hot water tank with optional priority over zones 2
through 4. The 304V includes optional exercising to prevent circulator seizure when not in use, and optional post purge
operation of domestic hot water tank to maximize energy savings. The 304V provides a RoomResponse
TM
signal to
modulating-condensing boilers to optimize comfort while improving boiler efficiency.
Zone Valve Control 304V Four Zones with Priority
Literature 304V_C, 304V_D, 304V_J
Control Microprocessor control. This is not a safety (limit) control.
Packaged weight 5.0 lb. (2250 g)
Dimensions 8-3/16" H x 10-11/16" W x 2-3/8" D (208 x 271 x 60 mm)
Enclosure Cover: ABS plastic, Base: galvanized steel, NEMA type 1
Approvals
CSA C US
Ambient conditions Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% non-condensing
Power supply 115 V (ac) ±10%, 60 Hz, 11 A
Transformer
40 VA, expandable to 80 VA with additional transformer
M3069 (sold separately)
Control load 7 VA
Fuses T5 250 V slow blow, two spare fuses included
Zone valve outputs
24 V (ac), 2 A max each, one transformer 33 VA,
two transformer 73 VA
Zone valve end switch 24 V (ac)
Pump relays 230 V (ac), 5 A, 1/3 hp
Boiler XX end switch 24 V (ac), 5 A
DHW end switch 24 V (ac), 5 A
Mod boiler output
0-10 V (dc) 500 Ω min load impedance
4-20 mA 1kΩ max load impedance
Warranty Limited 3 Year (See 304V_D for full warranty)
Front View Side View Inside View
6–7/16"
(164 mm)
1/2" (22 mm) knockout
∅ 3/16"
(4 mm)
2-3/8"
(60 mm)
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 EXPANSI ON
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
9060
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 : 0N
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 PRIORIT Y
L N L N L N
OFF
OFF
OFF
4-20 mA
9"
(229 mm)
8–3/16"
(208 mm)
10-11/16"
(271 mm)
Call
Valve
Open
Zone Valve Control 304V
Four Z ones with Priority
Power
Priority
System
Pump
Zone 1
Zone 2 Zone 3 Zone 4
RoomResponse
TM