NTI Trinity Ti 100 Installation And Operation Instructions Manual

NTI Trinity Ti 100 Installation And Operation Instructions Manual Manual pdf 24 page image

247.2.3 Multiple Zones Pump controller(Models Taco SR504, Argo ARM 861 Series)The basic multiple zoned system using circulating pumps. This wiring system is used with the piping as described in 6.2.2 Multiple Zonesusing Pumps and 6.2.3 Multiple Zones with different temperatures.OperationRoom thermostat closes circuit to TT terminals of the pump controller. The controller energizes the appropriate circulating pump andcloses the circuit between terminals T-C on the Sentry control. The Sentry 2100, provides power to the primary pump (C1), once the pumpis on, it turns on the burner.Once the room thermostat is satisfied, it breaks power to the TT terminal of the pump controller, which opens the X –X contacts, whichopens the T-C circuit. The Pumps and burner turn off.Indirectthermostat,or combi flowswitchLegendP1- Primary Pump CB- Trinity Control boxP2- Indirect pump, orCombi Valve