Issue: 01.03.2016
Page 9
9.
Installation
Electrical Connection & Probe Positioning
1.
Cable glands are provided for the mains supply cable and the cellar temperature probe cable on the right hand side of the
unit. Use the M20 gland for the mains supply cable and the M12 gland for the cellar temperature probe.
2.
The cellar temperature probe
is coiled up in the control box. Remove the front lower panel on the unit to gain access to the
control box.
3.
The ambient temperature probe
is coiled and stored behind the air damper on the rear of the unit.
4.
Connect the mains supply cable (provided) to the unit as per the diagram on page 12.
Do not switch on the supply yet.
5.
Isolate the main cellar cooler supply and break the control circuit as per the diagram on page 12. Using a 2 core cable,
connect the control circuit from the main cellar cooler to terminal A on the JABC unit and return via terminal B to feed either
the main cellar cooler contactor coil or the solenoid valve.
6.
Position the JABC cellar temperature probe unit in a suitable position within the cellar (ideally next to the temperature sensor
for the main cellar cooler). The probe cable length is 3m but this can be extended if required.
7.
Position the JABC ambient temperature probe. This can be run down the inside of the air inlet ducting and secured within the
external air inlet grille. Ensure sensor is protected from direct sunlight which may affect the temperature reading and the
operation of the unit.
Item Description
1
CONTROLLER (AMBIENT)
2
CONTROLLER (CELLAR)
3
MCB
4
RELAYS
5
CABLE GLANDS
6
PILOT LAMPS
Important Notes:
1.
Ensure that all power supplies have been isolated before starting any electrical work.
2.
Only a qualified electrician should carry out any electrical work.
3.
Ensure that indoor cellar unit is fully isolated before carrying out this section.
4.
Make sure that the supply to the JABC-1 unit and the control circuit from the main cellar cooler
are using the same electrical phase, otherwise there is potential for 400V at the JABC-1 unit.
5.
The main cellar unit evaporator fan(s) should run when the JABC unit is running to ensure proper
air circulation within the cellar. This may require a wiring change on the main cellar unit.
Important Note:
The mains electrical supply to the JABC-1 unit must be via a suitably rated isolator and circuit breaker
or fuse. There is no isolator fitted to the unit. It requires a 230 volt / 1 phase / 50Hz supply which must
include a Neutral and Earth. It is not suitable for any other supply voltages (other than a deviation of
+/- 10% of the above values) and is not suitable for 60 Hz supplies.
