Reset
On the back panel, there is a specific reset button, in case it is necessary to retore the initial
settings.
If the date and time are not set after the reset, the controller will operate according to
the factory default settings.
Actuation relays
The circuit board and terminals show the relay contacts used to manage auxiliary equipment
and to report alarms.
•
Relay 1: Circulation pump (
active during disinfection
) Connect Relay 1 in parallel to
time clock or aquastat contacts (whatever switch is controlling recirculation pump).
•
Relay 2: Generic alarm (sensor fault, battery fault, blackout or clock failure).
•
Relay 3: Second thermostat. Wire in parallel to High Temperature thermostat. Use to
increase hot water supply temperature for thermal disinfection.
•
Relay 4: flushing valves
Summary of actuation relay status
Operating Status
Adjustment
Disinfection
Flushing
Thermal shock
Relay
Contact status
Contact status
Contact status
Contact status
Relay 1: recirc pump
Open
Closed
Closed
Closed
Relay 2: generic alarm
Open
Open
Open
Closed
Relay 3: second thermostat
Open
Cloase
Open
Closed
Relay 4: flush valves
Open
Open
Closed
Open
16
Recirculation pump
Relay 1
Storage primary pump
Relay 3
140°F
160°F
Wiring diagram of relay 1 with a clock for
managing the recirculation pump times.
Wiring diagram of relay 3 for connecting the
second thermostat on hot water storage.
