©
2010 D
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The control is mounted in accordance with the instructions
in the Data Brochure D 001.
Step Two — Mounting
Step Three — Rough-in Wiring
The wiring terminates in the two wiring chambers on the
control. Determine whether the low voltage wiring enters
the wiring chamber through the back or the bottom of the
control. The wiring is roughed-in prior to installation of the
control (see Brochure D 001). Standard 18 AWG solid wire
is recommended for all low voltage wiring, and multi-strand
16 AWG wire is recommended for 120 V (ac) wiring.
Power must not be applied to any of the wires during
the rough-in wiring stage.
Install the Source Sensor 085 and Storage Sensor 071
according to the instructions in the Data Brochures D 085
and D 070, and run the wiring back to the control.
Run wires from the 24 V (ac or dc) power to the control.
Use a clean power source to ensure proper operation.
•
•
Step Four — Testing the Wiring
The following tests are to be performed using standard
testing practices and procedures, and should only be
carried out by properly trained and experienced persons.
A good quality electrical test meter, capable of reading from
at least 0 - 300 V (ac) and at least 0 - 2,000,000 Ohms, is
essential to properly test the wiring and sensors.
Test the Sensors
In order to test the sensors, the actual temperature at
each sensor location must be measured. A good quality
digital thermometer with a surface temperature probe is
recommended for ease of use and accuracy. Where a
digital thermometer is not available, a spare sensor can be
strapped alongside the one to be tested, and the readings
compared. Test the sensors according to the instructions
in the Data Brochures D 085 and D 070.
Test the Power Supply
Make sure exposed wires and bare terminals are not in
contact with other wires or grounded surfaces.
If a 24 V (ac) transformer is used, make sure the voltmeter
is set to AC. Turn on the power and measure the voltage
across the 24 V (ac) power supply. The reading should be
between 22 and 26 V (ac).
Class 2
Transformer
L
N
R
C
If a DC power source is used, make sure the voltmeter
is set to DC. Turn on the power and measure the voltage
across the 24 V (dc) power supply. The reading should be
between 20 and 28 V (dc).
24 V (dc)
Battery
+
-
Test the Outputs
Relay (terminals 3 & 4)
Make sure the power to the pump circuit is off and install
a jumper between terminals 3 & 4. When the pump circuit
is powered up, the pump should turn on. If the pump fails
to operate check the wiring between the terminals and
the pump and refer to any installation or troubleshooting
information supplied with the pump. If the pump operates
correctly, disconnect the power and remove the jumper.
Pump
L
N
3
4
Relay
