Specifications

Riverside Hydronics
®
, LLC – 34-160 10/11
990 Haltom Road - Fort Worth, Texas 76117 - Tel [phone] Page | 9
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TheTIER1menushouldbethefirstmenuused.ThismenuwillapplytosingleTierboilersystemswhere
allofthe boilers areofthesametype,suchasallcondensingorallnon‐condensing.Itwillalsobeused
tosetupthefirstTierofthe
twoTier(Front‐EndLoadedSystem).
 ThefirstentrybuttonistitledFIRSTTIERBOILERS.Pressthisbuttonandyouwillbepromptedto
enter the number of first Tier boilers in your system. If all your boilers are of one type, this
parameterwillbethetotalnu mber 
ofboilersinyoursystem.
 The CYCLE PERIOD parameter will
define the interval at which
OnTrac®
will change assignment of the lead
boiler position. This value can be from
(1to7days).Thecycleper iodwillbegin
to the count down at the time of
commissioning.
 CURRENT LEAD BOILER shows which
boiler is  currently assigned the lead
boilerposition.
 SYSTEM DIFFERENTIAL allows the user
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to define the temperature  range over which the
OnTrac® will seek to maintain temperature 
control.Range(5to15°F).GotoLEAD/ LAG2toadjustthisparameter.
 CYCLEOCCURSdefinesthetimeofdaythe
OnTrac® willchangetheleadboiler assignment.Go
toLEAD/LAG2toadjustthisparameter.
 CHANGE LEAD BOILER allows the user to immediately  change assignment if the lead boiler
position.
 SYSTEM SETPOINT allows  the user to choose the temperature at which
OnTrac® will seek to
maintaintheboilersystem.
 ADJUSTED SETPOINT displays the set point after a reset function such as Outdoor Reset,
ScheduledSetbackorRemoteSetpointadjustmenthavebeenmade.
 SYSTEMTEMPERATUREdisplaysthecurrentsystemtemperature.
 TURNONSYSTEMSENSORwillenableordisablethesensorprobe.
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THE TIER 1 MENU