D)
INSTALLING YOUR SYSTEM ELECTRICALLY
Installation should only be carried out by a qualified electrical engineer.
Ensure that the dryer is connected to a suitably rated AC supply with means of external fused isolation.
The dryer must only be used on alternating current (AC) at the voltage shown on the rating plate (fixed
to the instrumentation shroud) and MUST BE EARTHED.
i)
SM MODELS
GENERAL
The dryer must be powered from an externally fused electrical supply.
The suggested electrical supply cable is 3 core 1.5mm
2
(16AWG).
The dryer must be earthed/grounded.
ELECTRICAL CONNECTION (See Figure 3)
Open the control shroud (9 - Figure 2) and locate the control enclosure (See Figure 4 for general appearance).
Remove a blanking grommet from one of the shroud supports and feed the main supply cable (1) through so it
exits the dryer body. Connect the cable to a suitable rated AC supply with means of external fused isolation.
OPTIONAL CONNECTION
For remote fault indication, a volt free relay (3) is provided. To access this feature remove the lid. Feed the cable
through the unused hole in a shroud support and through the unused gland (4) into the control enclosure.
Terminate the cable with suitable crimp terminals and connect to the relay to achieve the desired signal. Tighten
the cable gland and replace the box lid.
In normal operation, the relay is permanently energised and will de-energise in the event of a power failure or
fault condition. The relay is designed to provide a fault signal and is rated at 250VAC, 1A maximum.
12
Figure 3 - CONTROL ENCLOSURE
4
2
1
3
ELECTRICAL CONNECTION
Core marked ‘1’ = Live
Core marked ‘2’ = Neutral
Green / Yellow = Earth / Ground
N/C
N/O
2 Fault
3 Okay
4 Common
