WIRInG RelaYs foR avaIlable fUnCTIons
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115vaC
230vaC
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R1 R2 R3
n.o. loaD
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RelaY 2 WIRInG
RelaY 3 WIRInG
RelaY 1 WIRInG
volTaGe sWITCH
PoWeR WIRInG
n.C. loaD
2.2. Wiring
2.2.0. Power Wiring and LED Indication
This control comes pre-wired with a grounded electric cord for
plug-in operation in 115VAC systems. If a modification needs to
be made to the power connection, connect the appropriate Load,
ground and Neutral wires to the connector.
A red LED will light up when power is applied to the board.
Likewise, when the relays have been activated, either by the
controller or manually, a green LED next to the active relay will
show.
2.2.1. Wi-Fi Models: 230 vAc Switch
Optionally, on Wi-Fi controllers, the voltage switch can be adjusted
to handle 230VAC supply (modification of the cord plug may be
necessary). Use caution as this also changes the supply voltage
to the relays. I.E. if the switch is set to 230VAC supply, the pumps
or accessories wired to the relays must also be able to operate on
230VAC. Heliodyne packaged units come default with 115 VAC
pumps, unless specifically ordered otherwise.
2.2.2. relay 1 Wiring and Functionality
Relay 1 has a N.O. and N.C. connection; they share a common
middle neutral connection. For components with a ground wire, a
connection can be made using the relay 1 ground connection.
•
N.O. - Solar Relay: this is the connection for the solar
operation pumps. Both the solar and the tank pumps in dual
pumped systems are connected here.
•
N.C.: this connection can be used to power components
that operate opposite to the solar operation, such as a pool
controller with domestic water heating priority
2.2.3. relay 2 Wiring and Functionality
Relay 2 has only a N.O. connection. For components with a
ground wire, a connection can be made using the relay 2 ground
connection. Relay 2 can have one of two potential uses, depending
on the operating mode (see SETTINgS for more information on
operating modes)
•
Space Heating Mode: Relay 2 can operate a pump or valve
when a thermostat terminal is closed and the set temperature
is reached in the tank sensor (T2 or T3 if installed)
•
Commercial Mode: In dual pumped systems with variable
speed pumps, the control can operate Relay 2 to power the
domestic water circulator independently of the solar loop
circulator.
2.2.4. relay 3 Wiring and Functionality
Relay 3 has only a N.O. connection. For components with a
ground wire, a connection can be made using the relay 3 ground
wire. Relay 3 can have four purposes:
•
Electric Ignition gas Tank Operation: Connect the tank power
cord to this relay.
•
Timer Operation: Turn this relay on and off at a set hour
during each day.
•
Aquastat Operation: Operate this relay when a sensor
reaches a set temperature.
•
Simple Differential Operation: Operate a second differential
using sensors of your choice.
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4
FIg. 2.2.0
FIg. 2.2.1
FIg. 2.2.2
FIg. 2.2.3
FIg. 2.2.4
Ver. 2 board shipped
after Sept 2011
Ver. 1 board discon-
tinued after 2011
NOTE: Contact Heliodyne if you have a Ver. 1 board.
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GReen RelaY leD’s
