Taco SR506

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 SR506 Specifications

General

Zones	6
Transformer	40 VA
Priority Zone	Yes
Switching	SPDT
Enclosure	Plastic
Type	Zone Control Panel
Voltage	24VAC
Frequency	60 Hz

Summary

Product Information and Safety

Safety Notices

Important safety warnings regarding power connections and system operation for safe installation.

Switching Relays

Instruction Sheet: SR501 Switching Relay

Features, operation, and installation details for the SR501 Switching Relay.

Instruction Sheet: SR501-EXP Switching Relay

Details on the SR501-EXP, including PowerPort options and expansion capabilities.

Instruction Sheet: SR502 & SR503 Switching Relays

Features, operation, and installation for SR502 (2-Zone) and SR503 (3-Zone) Switching Relays.

Instruction Sheet: SR504 & SR506 Switching Relays

Features, operation, and installation for SR504 (4-Zone) and SR506 (6-Zone) Switching Relays.

Instruction Sheet: SR503-EXP, SR504-EXP & SR506-EXP Switching Relays

Information on EXP models for 3, 4, and 6-zone switching relays with PowerPort options.

Zone Valve Controls

Instruction Sheet: ZVC404 & ZVC406 Zone Valve Control

Features, operation, and installation for ZVC404 (4-Zone) and ZVC406 (6-Zone) Valve Controls.

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

Details on EXP models for 4 and 6-zone valve controls with PowerPort options.

Boiler Reset and Pump Controls

PC700 Boiler Reset Control Wiring

PC702 2-Stage Boiler Reset Control Wiring

PC705 Variable Speed Pump Injection Control Wiring

Instruction Sheet: PowerPort Cards (PC600, PC605, PC610)

Instruction sheets for PC600 (Post Purge), PC605 (Priority Protection), and PC610 (Pump Exercise) cards.

Mixing Valves, Pump Blocks, and Aquastats

Low Water Cutoff and Feeder Cross-References