9
A variation on this example might be to shift back the set point on the weekend in order to reduce loop
temperature and save energy beginning 5:00PM Friday. In this case Sb# would be -20 for the lead boiler -25 for
the lag boilers. Target operating temperature would shift from 165 to 145°F. See below.
•
Boiler #1 St1=160, E6=17.0, S6=24.0, Sb6= -20
•
Boiler #2 St1=160, E6=17.0, S6=24.0, Sb6= -25
•
Boiler #3 St1=160, E6=17.0, S6=24.0, Sb6= -25
•
Boiler #1 St1=160, E7=0.0, S7=24.0, Sb2= -25
•
Boiler #2 St1=160, E7=0.0, S7=24.0, Sb2= -20
•
Boiler #3 St1=160, E7=0.0, S7=24.0, Sb2= -25
•
Boiler #1 St1=160, E1=0.0, S1=24.0, Sb1= -25
•
Boiler #2 St1=160, E1=0.0, S1=24.0, Sb1= -25
•
Boiler #3 St1=160, E1=0.0, S1=24.0, Sb1= -20
•
Boiler #2 St1=160, E2=0.0, S2=6.0, Sb2= -20
•
Boiler #3 St1=160, E2=0.0, S2=6.0, Sb2= -25
•
Boiler #1 St1=160, E2=0.0, S2=6.0, Sb2= -25
LEAD/LAG CONTROL OPTION 2:
The lead-lag and outdoor reset function is managed by a third party Boiler Management System (BMS) or building
Energy Management System (EMS). This manner of control will only function to enable-disable the EMBLEM
®
boiler
system. Once enable the TempTrac
®
boiler control must be allowed to function independently in order to ensure efficient
operation. If outdoor reset is desired the TempTrac
®
outdoor reset function must be utilized and the programming
function must be identical to the BMS or EMS control.
See the TempTrac
®
Service & Setup Manual (34-81), for addition information on programming the outdoor reset
function.
Terminals R1 & R2 located in the control kiosk provide enable/disable electrical interface. Remove the jumper to
interrupt automatic control of the EMBLEM
®
boiler system.
Riverside Hydronics
®
, LLC - 990 Haltom Road - Fort Worth, Texas 76117 - Tel 1-800-990-5918
Friday
Saturday
Sunday
Monday
