General Description; Installation; Operation; Test Mode - Woods EC Box fan Installation And Maintenance Manual

15. CONTROLS FUNCTIONALITY
Suitable for single phase fan motors, for a 230V 50Hz single phase mains supply

16. GENERAL DESCRIPTION

• IP65 rated enclosure
• Fascia isolator
• Individual fan motor fuses
o MCB for 3 phase fan motors
• Illuminated Indication
o Panel live indicator
o Fan run indicator
o Fan fault indicator
o Boost indicator
• Customer connections
o VFC BMS enable
o VFC BMS boost
o Fan fault BMS link
o Remote 0-10V speed control

17. INSTALLATION

The controller is supplied fitted to the unit, pre-wired to fan motors and mains isolator and is suitable for internally
& externally mounted units.
The enclosure is opened with a flat-head screwdriver to release the hinge, and 2 Philips head screws beneath the
open hinge.

18. OPERATION

18.1 DIAGNOSTIC (FOR TWIN FAN)
• On initial power-up the fault relay will be energized into the normal "No Fault" condition.
• Fan 2 will run for 30 seconds to allow the control to monitor the correct running of the fan.
• If no fan fault is detected the control will switch from Fan 2 to Fan 1
• If Fan 2 is found to be faulty the control will go into fault mode and Fan 1 will run
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18.2 RUN MODES
• The controller is intended to operate the unit as duty-share auto-changeover - NORM
o Duty-share time period (1-12 hours) is defined by pot - C/O TIME
o Auto-changeover activated upon failure of running fan
• Either fan can be forced to run continually, bypassing the duty-share & auto changeover operations, if required –
OVERIDE
• Both fans can be forced to run continually, bypassing duty-share auto changeover operation, in duplex mode if
required - OVERIDE
18.3 FAN SPEED CONTROL
TRICKLE V – Trickle speed 0% - 100%
BOOST V – Boost speed 0% - 100%
RUN ON TIME – Boost run-on time 0 – 20 minutes
18.4 BMS
• VFC Enable – shipped linked
• VFC Boost – Fan will run at Trickle set-point until the link is closed. Fan will continue to run at Boost set-point
as long as the link is closed or for the duration of the run-on time. Boost LED remains solidly illuminated when
activated, and flashes during run-on period.
• Remote Speed – A 0-10V signal can remotely vary the fan speed between the Trickle & Boost set-points as
minimum and maximum limits
• Fault Relay – To prevent false positives, a continual fault of 30 seconds is required before a fault condition is
reported. Upon a fault condition the relevant fan LED will flash and relay will switch to fault condition. Faults are
reset upon a power cycle. Relay rated for 12A / 250Vac
19. LED'S
POWER – Solid illumination when controller has power applied
FAN1 – Solid illumination when active, flashing when in fault
FAN2 – Solid illumination when active, flashing when in fault
BOOST - Solid illumination when active, flashing when in run-on period

20. TEST MODE

All unit are test run before dispatch to confirm correct operation of the above functions.
There is a factory test mode to aid troubleshooting. Contact us if assistance is required with troubleshooting.
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