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Taco Comfort Solutions ZVC403 Instruction Sheet

5 zone valve control
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SUPERSEDES: NEW
Plant ID No. 9300-4101
OVERVIEW:
The "ZVC40X-5" refers to a model number where "X" represents the number of control zones. Model number "ZVC406-5" is used for reference
in this document. The ZVC506-5 is a six zone switching relay that can have up to 6 thermostats connected and will operate up to 6 zone
circulators, plus 2 auxiliary outputs (AUX) to control circulators in boiler and primary loops, for example.
The ZVC406-5 has a priority zone option, allowing zone 1 to operate and deactivate zones 2 through 6 during a priority call; this is ideal
when using an indirect water heater.

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5. Product & Application Diagrams
Instruction Sheet
ZVC403/404/405/406-5 Zone Valve Control
EFFECTIVE:10/11/24
The ZVC406-5 includes timing options for
Post Purge, Pump Exercise and Priority
Protection. The ZVC406-R-5 also includes
an energy saving program that can
adjust the temperature of a modulating-
condensing boiler or conventional On/Off
boiler to increase the comfort level and
use less fuel, without the need to install an
outdoor sensor. It also supports Outdoor
Reset (Weather Compensation) when
separately purchased outdoor sensor is
connected (or separately purchased Plug-
In Reset Control for standard ZVC406
model).
For information on the Taco Zone Valve
Controls
(ZVCs)
including
instruction sheets, submittal data sheets,
and our highly praised Zone Controls
Wiring Guide, scan the QR code below
or visit www.TacoComfort.com.
102-575
catalog,
1

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Summary of Contents for Taco Comfort Solutions ZVC403

  • Page 1: Table Of Contents

    It also supports Outdoor Reset (Weather Compensation) when separately purchased outdoor sensor is connected (or separately purchased Plug- In Reset Control for standard ZVC406 model). For information on the Taco Zone Valve Controls (ZVCs) including catalog, instruction sheets, submittal data sheets,...

  • Page 2: Warnings And Safety Information

    1. WARNINGS & SAFETY INFORMATION: FCC Regulatory Statements This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the Federal Communication Commission (FCC) rules.

  • Page 3: Location And Installation

    2. LOCATION & INSTALLATION: Planning: Included in Package: ZVC40X-5 zone valve control Quick Start Guide 2 Spare fuses attached to inner cover ZVC40X-R-5 zone valve control also includes; Strap-on temperature sensor Tools & Material Needed: Small straight blade screwdriver Screws or hardware for mounting Phillips screwdriver Electrical connectors for field wiring Torpedo level...

  • Page 4: Operation & Dip Switch Settings

    Pump Exercise Operation: When the DIP switch (#5) is set to ON, the solid state timer cycles all the AUX circulating pump outputs that are attached to the Zone Valve Control to run for 30 seconds every 2 weeks. More adjustments are available when using the Taco Control mobile app.

  • Page 5: Wiring Procedure

    4. WIRING PROCEDURE: End Switches (Low Voltage Dry Contacts): Main - The main end switch closes when any zone thermostat calls for heat and connects to T-T on boiler operating control. Priority - The priority end switch closes only when the priority zone thermostat or aquastat is calling for heat and connects to DHW T-T on boiler (optional).
  • Page 6 DHW Recirculation using SmartPlus Logic SmartPlus Recirc Logic Sensor • Mount the strap-on sensor on domestic hot water supply pipe on water heater using wire tie or pipe clamp and insulate sensor with pipe insulation. • The sensor must be strapped to metal piping. A short piece of copper or brass tube should be added into non metallic systems for sensor attachment.

  • Page 7: Mechanical Diagram

    5. PRODUCT & APPLICATIONS DIAGRAMS: PA01V – ZVC406-5 with 5 Zone Valves & Indirect DHW; Supply & Return Headers Mechanical Diagram C-ZV LEGEND Electrical Diagram Note 3 Note 3 DIP Switch Settings 1. OFF - Master 2. ON - Priority 3.
  • Page 8 PA02V – ZVC406 with 5 Zone Valves & Indirect DHW; Primary/Secondary Mechanical Diagram Mod/Con Boiler Note 3 LEGEND Note 3 Electrical Diagram 120 VAC DIP SWITCH SETTINGS DIP SWITCH SETTINGS DIP SWITCH SETTINGS DIP SWITCH SETTINGS Note 3 Note 3 DIP Switch Settings 1 2 3 1 2 3...
  • Page 9 PA03V – High & Low Temperature Zones + Indirect DHW; Primary/Secondary Electrical Diagram...
  • Page 10 PA04V – Boiler with Tankless Coil; Supply & Return Headers Mechanical Diagram LEGEND Electrical Diagram 70 70 70 70 70 70 70 120 VAC 70 70 70 70 70 70 Note 3 1 2 3 1 2 3 DIP Switch Settings 1.
  • Page 11 PA05V – Legacy Zone Controls – ZVC406-EXP-4 (Master) Connected to ZVC406-5 (Expansion) Electrical Diagram...
  • Page 12 PA06V – Legacy Zone Controls – ZVC406-5 (Master) Connected to ZVC406-EXP-4 (Expansion) Electrical Diagram...
  • Page 13 PA07V – Legacy Zone Controls – ZVC406-5 (Master) Connected to ZVC406-EXP-2 (Expansion) Electrical Diagram...

  • Page 14: Reset Control Setup & Wiring

    Control Setup: The Taco Control mobile app is required to set type of reset control and parameters to operate. Wiring of Reset Control: Make all sensor and analog output connections to the small Plug-In Reset Control on ZVC406-R-5.

  • Page 15: Troubleshooting & Faqs

    7. TROUBLE SHOOTING & FAQS For your convenience, the Taco Tech Support team is available Mon-Fri 8am-5pm EST. Just call 401-942-8000 for help. Problem: Digital thermostats do not work correctly when connected to a zone valve control. Solution: Some thermostats are a “Power Stealing” type which means they are powered by the switching relay with just 2 wires (R &...

  • Page 16: Specifications

    -58°F to 230°F (-50°C to110°C) 24 VAC, 1A, DIP Switch Timing Settings: Expansion Terminals: Low voltage, 3-wire polarity- Post Purge: 2 minutes; adjustable with Taco Control sensitive, digital communications that links other mobile app Switching Relays (SR-5), Zone Valve Controls (ZVC- 5) and other Modbus equipment.

  • Page 17: Warranty

    11. WARRANTY Taco, Inc. will repair or replace without charge (at the company’s TACO OFFERS THIS WARRANTY IN LIEU OF ALL OTHER option) any product or part which is proven defective under EXPRESS WARRANTIES. ANY WARRANTY IMPLIED BY normal use within three (3) years from the date code.

This manual is also suitable for:

Comfort solutions zvc404Comfort solutions zvc405Comfort solutions zvc406

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