Electrical Connections - Slant/Fin VSL II Quick Start Manual

6

Electrical Connections

The boiler has both 24V and 120V terminal strips, pay special at-
tention to properly identify both types of wiring in the system. The
boiler has the ability to power and control three separate pumps:
boiler loop pump, DHW indirect tank pump, and system pump. The
boiler also utilizes an outdoor NTC sensor as well as an indirect
tank NTC sensor when controlling DHW production. These sen-
sors are supplied with the boiler. External alarm contacts as well
Slant/Fin VSL II Quick Start Guide
as external safety devices maybe connected to the boiler. A room
thermostat or TT connection from a zone valve/ pump relay control
must always be connected to the boiler to generate a call for heat.
Additional information about the wiring of the boiler and functionality
may be found in the installation and maintenance manual supplied
with the boiler.
System
Circulator