Willo Instruction Manual
2
INTRODUCTION
The Willo cabinet facilitates the requirements for outdoor UPS applications such as Wireless
ISPs, CCTV, environmental monitoring etc in a one box solution. It’s IP45 rating and double skin
are designed to ensure equipment inside is protected from the elements.
The cabinet contains 3 tiers, the bottom tier suitable for housing up to 3x 12V 100Ah batteries.
The middle tier houses customer equipment, or can be used for an additional battery tier. The
upper tier houses the UPS and / or further customer equipment housed behind a door
containing the electrical protection by means of circuit breakers with power distribution.
The unit has a lockable door and can be bolted to the floor for added stability and security. A
thermostatically controlled integrated AC fan is also present in order to prevent excessive heat
build up within the cabinet.
⚠WARNINGS
1. Installation of the cabinet should only be undertaken by trained and competent
personnel.
2. Hazardous AC Voltages appear within the Willo Cabinet. Although the risk of accidental
contact is minimised with the use of covers, access to the cabinet should only be
performed by personnel trained in the risks involved.
3. The Willo cabinet is designed to hold high capacity batteries. Depending upon the
configuration this may involve DC voltages in excess of 50V which may have exposed
terminals. Access to the cabinet should only be performed by personnel trained in the
risks involved.
4. High Capacity batteries impose a very real risk of burns or fire if accidentally short
circuited. Extreme caution must be taken during installation. Please bear the following
safety points in mind when installing batteries:
a. Keep the battery terminal covers on until making the electrical connection.
b. Use a single ended insulated spanner to tighten the battery terminals. If not
available, a good idea is to ensure that the spanner length is less than the battery
width to remove the possibility of contact with an already installed battery.
c. Connect each battery one at a time. Do not have multiple people connecting
batteries in case of accidental shorting through the Willo chassis.
d. Take care when installing and removing batteries to ensure that the terminals do
not short against the shelf above the batteries.
e. Never transport the Willo Cabinet with batteries in-situ.
5. The batteries are heavy. Observe proper handling procedures and take extra care not to
trap fingers.
