CALORIQUE THERMOLAR THS-106 Installation And Operation Manual - page 7
INST
ALLA
TION
ELECTRICAL CONNECTIONS
1.Measure and record the resistance of each heating element.
Record the measured resistances on the label on the back of the control unit face plate.
2.Route all wiring to the control unit as shown in the following figure.
3.Secure all wiring in place to the side of the tank using duct tape.
4.Connect each heating element and the thermo-sensors to the appropriate terminal connections
of the control unit according to the following diagram.
5.Run power supply cable from the circuit breaker box to the control unit and make the connec-
tions to the power supply connectors inside the control unit.
6.Attach remote alarms, if applicable, to the remote alarm relay points (shown on the wiring
diagram on the next page).
•
Two alarm relays are provided that operate in the event that
either temperature set for over-limit or low-limit is reached.
•
Note that the alarm relays do not generate an alarm signal.
External power for the alarms must be provided.
•
Each relay terminal offers the option of a normally open
(NO) or normally closed (NC) switch. Do not use both set-
tings for the same relay terminal.
Some thermo-sensors cables
may include a ground wire.
Do not connect thermo-sen-
sor ground wires to the com-
mon line voltage ground.
Make sure that power is
turned off before working
with the input power cable.
Do not turn on
power to the sys-
tem unless there
is contents in the
tank.
Note
Cut wires to length, as necessary.
Note
Local codes may require the use of an intermediary junction/switch box.
5
Metal tanks must be properly
grounded before operating
the system.
Do not run power
cords or thermo-
sensor wires over
heating elements.
The over-limit sensor wire may be run
over the heating element to which it is
attached, but only for the shortest dis-
tance possible.
NOTE
When routing the wiring, include the small “J” curves to the lowest point of each wire.
This will help to ensure that any water that penetrates the insulation does not reach
the heating elements.
Input Power