Taco ZVC406-EXP

TACO ZONE CONTROLS WIRING GUIDE
Pages
Switching Relays – Single Zone Wiring 2 – 2
Switching Relays – Oil Boiler Wiring Safety Notice 2 3– 4
Switching Relays – N
ON EXP Connected Together with Priority 5 – 11
Switching Relays – EXP Connected Together with Priority 12 – 14
Switching Relays – Multiple Indirect Hot Water Heaters 15 – 16
Switching Relays – EXP Connected To Reset Controls (PC700, 702 & 705) 17 – 28
Zone Valve Controls – N
ON EXP Connected Together with Priority 29 – 34
Zone Valve Controls – EXP Connected Together with Priority 35 – 38
Zone Valve Controls – Connected To Reset Controls (PC700, 702 & 705) 39 – 46
Hydro Air Fan Controls (HAFC 101 & 201) 47 – 51
Specialty Thermostat and Zone Valve Wiring 52 – 56
Radiant Mixing Block 57 – 58
X-Pump Block 59 – 61
iSeries Mixing Valves 62 – 63
Low Water Cutoffs and Electric Water Feeders 64 – 79
Aquastat Wiring 80 – 86
Instruction Sheets 87 – 97
Standard Terms and Definitions – 98
Cross Reference 99 – 100
Do it once.
Do it right.
© Taco Catalog No. 100-9.0 Effective Date: July 1, 2010
Supersedes Date: July 1, 2007

Taco ZVC406-EXP Specifications

General

Model	ZVC406-EXP
Type	Zone Valve Control
Voltage	120 VAC
Zones	6
Expandable	Yes
Operating Temperature	32°F to 104°F (0°C to 40°C)
Enclosure Rating	NEMA 1

Summary

TACO ZONE CONTROLS WIRING GUIDE

TACO Zone Control Product Information

SR501 Switching Relay Wiring

SAFETY NOTICE

Switching Relays Wiring Diagrams

SR 504 Wiring

Wiring diagram for SR 504 switching relay with Honeywell L8124.

SR 503 Wiring

Wiring diagram for SR 503 switching relay with Honeywell L8124.

Boiler Reset Controls Wiring Diagrams

PC700 Boiler Reset Control Connected to SR501-EXP Switching Relay

Wiring diagram for PC700 boiler reset control with SR501-EXP relay.

SR501-EXP and PC700 Boiler Reset Control Connected to an Existing Switching Relay

Wiring SR501-EXP and PC700 to an existing switching relay.

Connecting a DHW Heater to an Existing Heating Only Switching Relay Using an SR501-EXP and PC700 Boiler Reset Control

Wiring DHW heater to existing heating relay with SR501-EXP/PC700.

SR501-EXP and PC700 Boiler Reset Control Connected to an Existing Zone Valve Control

Wiring SR501-EXP/PC700 to an existing zone valve control.

Connecting a DHW Heater to an Existing Heating Only Zone Valve Control Using an SR501-EXP and PC700 Boiler Reset Control

Wiring DHW heater to zone valve control with SR501-EXP/PC700.

SR501-EXP and PC700 Boiler Reset Control Connected to an Existing Tankless Coil Boiler - Zoning with Circulators

Wiring SR501-EXP/PC700 to tankless coil boiler with circulators.

SR501-EXP and PC700 Boiler Reset Control Connected to an Existing Tankless Coil Boiler - Zoning with Zone Valves

Wiring SR501-EXP/PC700 to tankless coil boiler with zone valves.

PC700 Boiler Reset Control Connected to EXP Switching Relay

Wiring diagram for PC700 boiler reset control to EXP switching relay.

PC702 2-Stage Boiler Reset Control Connected to EXP Switching Relay

Wiring diagram for PC702 boiler reset control to EXP switching relay.

PC702 2-Stage Boiler Reset Control Connected to 2 EXP Switching Relays

Wiring diagram for PC702 boiler reset control to two EXP switching relays.

PC705 Variable Speed Pump Injection Control Connected to 2 EXP Switching Relays

Wiring diagram for PC705 pump control to two EXP switching relays.

PC700 and PC705 Controls Connected to 2 EXP Switching Relays

Wiring diagram for PC700/PC705 controls to two EXP switching relays.

PC702 and PC705 Controls Connected to 2 EXP Switching Relays

Wiring diagram for PC702/PC705 controls to two EXP switching relays.

Zone Valve Controls Wiring Diagrams

PC700 Boiler Reset Control Connected To EXP Zone Valve Control

Wiring diagram for PC700 boiler reset control to EXP zone valve control.

PC702 2-Stage Boiler Reset Control Connected To EXP Zone Valve Control

Wiring diagram for PC702 boiler reset control to EXP zone valve control.

PC705 Variable Speed Pump Injection Control Connected To EXP Zone Valve Control

Wiring diagram for PC705 pump control to EXP zone valve control.

PC702 2-Stage Boiler Reset Control Connected To 2 EXP Zone Valve Controls

Wiring diagram for PC702 boiler reset control to two EXP zone valve controls.

PC700 Boiler Reset Control Connected To 2 EXP Zone Valve Controls

Wiring diagram for PC700 boiler reset control to two EXP zone valve controls.

PC700 and PC705 Controls Connected To 2 EXP Zone Valve Controls

Wiring diagram for PC700/PC705 controls to two EXP zone valve controls.

PC702 and PC705 Controls Connected To 2 EXP Zone Valve Controls

Wiring diagram for PC702/PC705 controls to two EXP zone valve controls.

Radiant Mixing Block (RMB) and X-Pump Block (XPB)

iSeries Mixing Valve Wiring

Low Water Cutoff (LWCO) and Electric Water Feeder Wiring

Wiring Taco LN and LTA-2 Series LWCOs Using Burner Circuit Power Source

Wiring Taco LN and LTA-2 Series LWCOs Using Power Source Other Than Burner Circuit

Wiring Taco LT Series (1 st gen) LWCOs Using Burner Circuit Power Source

Wiring Taco LT Series (1 st gen) LWCOs Using Power Source Other Than Burner Circuit

Wiring Taco LF Series LWCOs Using Burner Circuit Power Source

Wiring Taco LF Series LWCOs Using Power Source Other Than Burner Circuit

Wiring Taco LF Series LWCO to Taco Electric Water Feeder (Same Voltages)

Wiring Taco LF Series LWCO to Taco Electric Water Feeder (Different Voltages)

Wiring 24 VAC Water Feeder to Taco LFMcDonnellHydrolevel LWCO

Wiring 120 VAC Water Feeder to Taco LFMcDonnellHydrolevel LWCO

Wiring TACO LWCO to McDonnell & Miller WF2 Feeder (24 VAC)

Wiring TACO LWCO to McDonnell & Miller WF2 Feeder (120 VAC)

Wiring Taco LF LWCO to Hydrolevel VXT-24 Feeder (Non-Display)

Wiring Taco LF LWCO to Hydrolevel VXT-120 Feeder (Non-Display)

Wiring TACO LWCO to Hydrolevel VXT-24 Feeder (Display Model)

Wiring TACO LWCO to Hydrolevel VXT-120 Feeder (Display Model)

Aquastat Wiring Diagrams

Aquastat Wiring (Honeywell L8124 A & C)

Wiring diagrams for Honeywell L8124A & C aquastats.

Aquastat Wiring (Honeywell L8124 GL and L8124 M)

Wiring diagrams for Honeywell L8124G/L and L8124M aquastats.

Aquastat Wiring (Honeywell L8148 E and L8148 J)

Wiring diagrams for Honeywell L8148E and L8148J aquastats.

Aquastat Wiring (Honeywell L8124 Series)

Wiring diagrams for Honeywell L8124 series aquastats.

Aquastat Wiring (Honeywell L8148 A and L8182 D)

Wiring diagrams for Honeywell L8148A and L8182D aquastats.

Aquastat Wiring to 24 VAC Low Water Cutoff

Aquastat Wiring to 120 VAC Low Water Cutoff

Instruction Sheets

Instruction Sheet SR501 Switching Relay

Instructions for installing and wiring the SR501 switching relay.

Instruction Sheet SR504 & SR506 Switching Relay

Instructions for installing and wiring the SR504 and SR506 switching relays.

Instruction Sheet SR501-EXP Switching Relay

Instructions for installing and wiring the SR501-EXP switching relay.

Instruction Sheet SR503-EXP, SR504-EXP & SR506-EXP Switching Relay

Instructions for installing and wiring SR503/504/506-EXP switching relays.

Instruction Sheet ZVC403 & ZVC405 Zone Valve Control

Instructions for installing and wiring ZVC403 and ZVC405 zone valve controls.

Instruction Sheet ZVC404 & ZVC406 Zone Valve Control

Instructions for installing and wiring ZVC404 and ZVC406 zone valve controls.

Instruction Sheet ZVC404-EXP & ZVC406-EXP Zone Valve Control

Instructions for installing and wiring ZVC404/406-EXP zone valve controls.

Plug-In PowerPort Card Instruction Sheets

Instruction sheets for PC600, PC605, and PC610 PowerPort cards.