Brochure

Boiler Boss
SINGLE AND MULTI-ZONE CONTROL RELAYS
FOR CIRCULATORS
The SR Single and Multiple-zone series control relays
incorporate up to six double pole/single throw zone relays to
provide control to a multi-zone hydronic system. Most models
include Priority Plus.
HYDRONIC AIR HANDLER PACKAGE
The WA300 controls up to two heat/cool air handlers or one
heat/cool air handlers plus a radiant fl oor zone with DHW
priority input/output and burner contacts.
Features:
• Domestic hot water priority
zone
• 10 amp replaceable sealed
contact relays
• Auto Test relay testing
• Priority Plus
• ZoneTrak for status indication
Featuring the ZoneTrak™ Window and Priority Plus
Boiler Boss Relays
Boiler Boss relays are the most advanced and reliable single and multiple zone switching relays
on the market today. Simplifi ed wiring and universal compatibility makes installation clear.
Features:
• Domestic hot water priority zone
• Replaceable sealed contact relays
• Selectable 90 or 180 second fan delay
ZONE CONTROL SYSTEM FOR ZONE VALVES, CIRCULAR,
AND BOILER
The VL500 controls up to fi ve zone valves, an indirect system,
a circulator, and boiler control—all in one controller. The
ZoneLink™ feature allows an unlimited amount of controllers to
be linked together.
Features:
• Domestic hot water priority zone
• 10 amp replaceable sealed contact relays
• Priority Plus
• ZoneTrak for status indication
• ZoneLink for priority extension
• 75 VA high capacity transformer
Hydronic Air Handler Package
Model Description
WA300 2 Zone Ht/Cl logic with DHW priority
Zone Control System
Model Description
VL500 5 Zone or 4/1 priority zone with ZoneLink
Single and Multi-Zone Control for Circulators
Model Description
SR100 1 Zone, DPDT, Universal relay
SR100AT 1 Zone, DPDT, Universal relay with Auto Test
SR201 2 Zone relay with Priority Plus
a
SR201AT 2 Zone relay with Priority Plus
a
and Auto Test
SR201B 2 Zone relay Priority
b
SR301 3 Zone relay with Priority Plus
a
SR301AT 3 Zone relay with Priority Plus
a
and Auto Test
SR301B 3 Zone relay Priority
b
SR601 4 to 6 Zone expandable relay with Priority Plus
a
SR601AT 4 to 6 Zone expandable relay
with Priority Plus
a
and Auto Test
SR601B 4 to 6 Zone expandable relay Priority
b
EXP-10 1 Zone expansion for SR Relay replacement
a— In addition to priority only logic, Priority Plus allows non-priority
heating zones to be locked out for up to one hour on a call for priority
domestic hot water heating.
b— Priority only logic locks out non-priority heating zones indefi nitely.
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