User Guide
15
PN 240010923 Rev. F [07/01/2018]
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Sequence Of Operation
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Field wired thermostats are connected to the
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compatible with either two or three wire thermostats.
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energizing the corresponding zone valve, zone pump
and primary pump terminals. The designated Isolated
End Switch XX terminals will close energizing the
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Note: Activation of XX terminals is dependent on the programming
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Zone Valve Output
Zone valves are wired to designated zone valve
terminals. The control is compatible with two, three
or four wire zone valves. Power to the valve is
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terminal 3 for a three-wire valve.
Note: If a 2-wire zone vale is used, then a jumper wire should be
placed across terminals 3 and 4 of the corresponding zone valve.
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1 and 2 of the corresponding zone valve terminals.
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also be supplied to the primary pump terminals of the
master control.
Note: Refer to the valve manufactures instructions for operation
and wiring.
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programming.
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prevent the primary pump from energizing.
The operation of the primary pump for the priority
zone is also dependent on the primary pump
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will not energize with the priority zone.
Zone Pump Output
Zone pumps are wired to the designated zone pump
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and the primary pump terminals of the master
control.
Note: Refer to the pump manufactures instructions
for operation and wiring.
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programming.
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prevent all pumps from energizing.
The operation of the primary pump for the priority
zone is also dependent on the primary pump
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will not energize with the priority zone.
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exclusive operation over other zones for a designated
time period. For priority operation, priority must be
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may be may be designated priority. Priority times are
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control will then revert to non-priority operation
for an equal time period until the priority call ends.
Non-priority and priority zones will not operate
simultaneously.
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assigned to Isolated End Switch #3 will be given
priority over all other zones. (Priority must be set to
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