Cool Designs Ltd makes every effort to ensure that the information provided within this publication is correct and error free, however we cannot guarantee that it is free of inaccuracies, errors or
omissions. Users should seek to clarify this information for themselves prior to basing any decisions upon such information.
Accessories.
RBC-VML1 VN-M Unit Interface Lead
The lead will allow the VN-M unit to be controlled from volt free contact closures. Separate contacts are required
for on/off, remote controller lock, increased fan speed and damper position.
Installation
The interface lead must be plugged into the;
A)
For the HE models CN705 connector on the main PCB.
B)
For the HE1 model CN61 on the “Control PCB – A”.
If the lead is used with a remote controller it will operate in last one touched mode. If the VN-M units are grouped
the lead can be connected to any VN-M unit in the group. Please see Installation manual supplied with the VN-M
unit for details.
When connected to the HE models, VN-M150, 250, 350, 500, 650 & 800HE
Remove the screws to expose the PCB pass the Interface cable from the Electrical box out through the provided
bushes. Connect the ring crimp terminal to the provided earth screw inside the electrical box.
Ensure the VN-M unit is set to static input SW701 bit Sw1 OFF (This is set at unit shipment from the factory).
The links between the common (Green Cable) and the selected input are to be connected to a volt free contact.
A
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