LAARS SUMMIT SMW-250 - Install and Operating Manual - Manual (Page 15)

SUMMIT BOILER OR WATER HEATER Page 15
5.2 Temperature Control
SMB-200/250 Boiler
NOTE: Connect boiler T-T wires to isolated
contacts on zone valves, circulator relays, sequencing
controls (multiple appliance applications) or other
temperature controlled devices. DO NOT JUMPER.
If connected to a room thermostat set heat anticipator
at 0.9 amps.
5.3 Temperature Control
SMW-200/250 Water Heater
5.3.1 Water Heater Temperature Control
Connect water heater T-T wires to isolated
aquastat contacts, sequencing controls (multiple
appliance applications) or other temperature
controlled devices. DO NOT JUMPER.
5.3.2 Tank Temperature Control
The SMW-200/250 is turned on and off by a
remote tank aquastat. Locate the aquastat above the
cold water inlet fitting in the separate storage tank.
The SMW-200/250 draws water off the bottom of the
tank and pumps hot water back into the tank. When
the hot water level reaches the level of the aquastat,
the aquastat contacts will open and switch off the
SMW-200/250.
Please contact your factory representative if you
have any questions about storage tank application.
5.4 Wiring Diagram
Caution
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing