Tekmar Zone Valve Control 304V Installation And Operation Manual

Installation & Operation Manual

304V_D

Zone Valve Control 304V

Zoning

10/19

Replaces: 11/16

Introduction

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 the domestic hot water tank to maximize energy savings. The 304V provides a RoomResponse signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.

Features

• RoomResponse

• Compatible with all 24 V (ac) thermostats

• Compatible with 2, 3 and 4-wire zone valves

• Unlimited zone expansion

• Zone priority

• Priority override

• Pump exercising

• Post purge

signal

•

LED for each zone, priority, end switch and RoomResponse

• Away signal shared between thermostats

• Four ground screws

• Top, bottom and back conduit knockouts

• Fuses protect transformers and pumps

• Two spare fuses included

• CSA approved

Zone Valve Control 304V

Four Zones with Priority

Power

Priority

RoomResponse

System

Pump

Call

Valve Open

Zone 1

Zone 2 Zone 3 Zone 4

Table of Contents

Important Safety Information .............................................2

Installation .........................................................................3

Preparation .................................................................... 3

Location ......................................................................... 3

Installing the Enclosure ................................................. 3

Application 304V–1 ........................................................ 4

Application 304V–2 ........................................................ 5

Application 304V–3........................................................ 6

User Interface ....................................................................7

Indicator LED ................................................................. 7

Sequence of Operation .....................................................7

Technical Data ...................................................................8

Limited Warranty and Product Return Procedure .............8

Important Safety Information

It is your responsibility to ensure that this control is safely installed according to all applicable codes and standards. tekmar is not responsible for damages resulting from improper installation and/or maintenance.

This is a safety-alert symbol. The safety alert symbol is shown alone or used with a signal word (DANGER, WARNING, or CAUTION), a pictorial and/or a safety message to identify hazards. When you see this symbol alone or with a signal word on your equipment or in this manual, be alert to the potential for death or serious personal injury.

This pictorial alerts you to electricity, electrocution, and shock hazards.

This symbol identifies hazards which, if not avoided, could result in death or serious injury.

This symbol identifies hazards which, if not avoided, could result in minor or moderate injury.

This symbol identifies practices, actions, or failure to act which could result in property damage or damage to the equipment.

Read manual and all product labels BEFORE using the equipment. Do not use unless you know the safe and proper operation of this equipment. Keep this manual available for easy access by all users. Replacement manuals are available at tekmarControls.com

•

It is the installer’s responsibility to ensure that this control is safely installed according to all applicable codes and standards.

•

Improper installation and operation of this control could result in damage to the equipment and possibly even personal injury or death.

• This control is not intended for use as a primary limit control. Other controls that are intended and certified as safety limits must be placed into the control circuit.

The control includes fuses and transformer that are serviceable. Do not attempt to service any other parts on the control. Attempting to service the control voids the warranty.

• Strip all wiring to a length of 3/8 in. or 10 mm for all terminals.

• A circuit breaker or power disconnect that provides power to the control should be located nearby and clearly labeled.

• Refer to the current and voltage ratings at the back of this manual before connecting devices to this control.

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Radio Frequency Interference

The installer must ensure that this control and its wiring are isolated and/or shielded from strong sources of electromagnetic noise. Conversely, this Class B digital apparatus complies with Part 15 of the FCC Rules and meets all requirements of the Canadian Interference-Causing Equipment Regulations. However, if this control does cause harmful interference to radio or television reception, which is determined by turning

Installation

Preparation

Tools Required

• tekmar or jeweler screwdriver

• Phillips head screwdriver

Materials Required

• 18 AWG LVT solid wire (low-voltage connections)

• 14 AWG solid wire (line-voltage connections)

Packaging Contents

• 1 Zone Valve Control 304V

• 2 Spare fuses (located in cover)

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the control off and on, the user is encouraged to try to correct the interference by re-orientating or relocating the receiving antenna, relocating the receiver with respect to this control, and/or connecting the control to a different circuit from that to which the receiver is connected.

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

• Needle-nose pliers

• Wire stripper

• Four 1/8" - 1" wood screws

• 1 Installation and Operation Manual 304V_D

Location

• Keep the control dry. Avoid potential leakage onto the control.

• Maintain relative humidity less than 90% in a non-condensing environment.

• Avoid exposure to extreme temperatures beyond 32-122°F (0-50°C).

• Install away from equipment, appliances, or other sources of electrical interference.

• Install to allow easy access for wiring, viewing, and adjusting the display screen.

• Install approximately 5 feet (1.5 m) off the finished floor.

• Locate the control near pumps and/or zone valves if possible.

• Provide a solid backing which the enclosure can be mounted to. Example: plywood or wall studs.

• Use the conduit knockouts provided on the upper, lower, and back of the enclosure for wiring.

Installing the Enclosure

To prevent the risk of personal injury and/or death, make sure power is not applied to the control until it is fully installed and ready for final testing. All work must be done with power to the circuit being worked on turned off.

Please be aware local codes may require this control to be installed or connected by an electrician.

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Application 304V–1

Away

C R Rh W

Away

C R Rh W R W R W

MOD

tN4

T1 T2 T3 T4 T5 T6

DHW CRW

BOILER T-STAT 1T-STAT 2T-STAT 3

tN4

CRW

tN4

CRW

T-STAT 4

tN4

CRW

T-STAT 5

tN4

CRW

T-STAT 6 EXPANSION

tN4

CRW

tN4

BCDE

FUSE 2 FUSE 1

END

SWITCH

MOTOR

POWER

PRIORITYSYS 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 : 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

LNLNLN

OFF OFF OFF

4-20 mA

The Zone Valve Control 304V operates four heating zones. When the thermostat calls for heat, the zone valve opens, the system pump is turned on and the boiler is fired.

Mechanical

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Legend

B1 = Boiler PS = System Pump T1 = WiFi Thermostat 561 or 562 T2 = Thermostat 518 or 519 T3 = Generic Digital Power-Stealing Thermostat T4 = Generic Bi-Metallic Strip Thermostat V1 to V4 = 2-Wire Zone Valves

304V

V1 V2 V3 V4

Electrical

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T2 T3 T4

DIP Switches

Master T-stat 1 Priority = Off Exercising = On Post Purge = On Mod Boiler = depends on boiler System Pump During Priority = On System Pump With Member Calls = Off Zone Valve End Switches = Off

Included 510 Ω resistor must be installed when using power stealing thermostats (e.g. Thermostat T3)

L N

V1 V2 V3 V4

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+ 8 hidden pages

Tekmar Zone Valve Control 304V Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual