TACO Zone Control Product Information
Switching Relays
Product No. Description
SR501 1 Zone Switching Relay
SR501-845RP 1 Zone Switching Relay Replacement PC Board for
Honeywell R845, RA89A, RA832 or Comparable Relay
SR502 2 Zone Switching Relay with Priority
SR503 3 Zone Switching Relay with Priority
SR504 4 Zone Switching Relay with Priority
SR506 6 Zone Switching Relay with Priority
Switching Relays with PowerPort Options and Expandable to 20 Zones
Product No. Description
SR501-EXP 1 Zone Switching Relay
SR503-EXP 3 Zone Switching Relay with Priority and 3 PowerPorts
SR504-EXP 4 Zone Switching Relay with Priority and 3 PowerPorts
SR506-EXP 6 Zone Switching Relay with Priority and 3 PowerPorts
Zone Valve Controls
Product No. Description
ZVC403 3 Zone Valve Control
ZVC404 4 Zone Valve Control with Priority
ZVC405 5 Zone Valve Control
ZVC406 6 Zone Valve Control with Priority
Zone Valve Controls with PowerPort Options and Expandable to 20 Zones
Product No. Description
ZVC404-EXP 4 Zone Valve Control with Priority and 2 PowerPorts
ZVC406-EXP 6 Zone Valve Control with Priority and 2 PowerPorts
Plug-In PowerPort Cards (For use with all -EXP controls)
Product No. Description
PC600 Post Purge Timer Plug-In Card
PC605 Priority Protection Plug-In Card
PC610 Universal Timer/Pump Exercise Plug-In Card
Add-On Power Controls (For use with all -EXP controls)
Product No. Description
PC700 Boiler Reset Control
PC702 2-Stage Boiler Reset Control
PC705 Variable Speed Pump Injection Mixing Control
Fan Controls
Product No. Description
HAFC101 Hydro Air Fan Control
HAFC201 Hydro Air Fan Control with Optional Time Delays
Do it once.
Do it right.
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