iVector S2
Installation manual
iVector S2 • 2022-07-01
US
Control panel connection and setup
5.1 Connection and setup of onboard control panel
The control panel on each unit has the following
connection options:
• Voltage free contact output to chiller
• Voltage free output to boiler
• 2 pipe models – 230V relay output to heat / cool
valve actuator (115V Canada/US)
• 4 pipe models – 230V relay output to heating valve
actuator and 230V relay output to cooling valve
actuator (115V Canada/US)
• Presence detector input.
A 10 kΩ water temperature probe attached to the
heat exchanger controls fan operation. In heating
the fan will operate when the water temperature
reaches 30°C (86 °F), and in cooling the fan will
operate when water temperature drops below
20°C (68 °F).
5.2 Cooling mode additional functionality
The cooling function can be changed using dipswitch B
on the main control board. If dipswitch B is set to ON,
the fan will continue to operate at minimum speed in
cooling, even after the set point is reached. This allows
for more uniform operation of the temperature probe
and prevents layering of the air. When dipswitch B is
set to OFF, the unit will cycle 4 minutes on, 10 minutes
off when the cooling set point is reached (the factory
setting of switch B is off).
5.3 Night time heating additional functionality
The night time heating logic can be changed using
dipswitch C on the main control board.
In the ON position, the fan will always be off and
heating is by radiation and natural convection only.
In the OFF position the fan operates as normal (the
factory setting of switch C is off).
Night time heating can be selected by pressing
on
the control panel
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