NTI Ti100-200 Installation And Operation Instructions Manual page 40

Trinity │Installation and Operation Instructions
Figure 11-5 Zone Circulator Systems
Legend
P1 - Primary Pump
P2 - Indirect pump or Combi Valve
CB - Trinity Control box
Indirect Aqua-
stat or Combi
flow switch
Zone Circulator System – w/Zone Controller
Figure 11-5 illustrates a typical wiring configuration required for a heating system using zone circulators with a zone circulator
controller (Example shows a Taco model SR504).
Operation - Room thermostat closes circuit to TT terminals of the zone controller. The controller energizes the appropriate zone
pump and closes the circuit between terminals T-C at the Trinity Ti Low Voltage field connection (See Table 11-2 and Figures 11-
1 and 11-2). The Sentry 2100 provides power to the primary pump (P1) via the C1 (blue) pump output, see Table 11-1 and Figures
11-1 and 11-2. The controller then operates the burner to maintain the Space Heat set-point (HI), see Section 12.0.
40
Ti Series