Brivis AD BAL AD56, Installation Manual

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Brivis 23 Evap AC IM
12. BRIVIS AD WATER CONNECTION
12.1 INLET CONNECTION
The water inlet connection point is in the Cooler base, which should be positioned on the low side of the roof� The
connection is a 12 mm copper tube union (flare).
12.2 BRIVIS AD FLOAT VALVE SETTING
DETAILS
The Float Valve has been factory set so that the water fills
initially to a level between the minimum and maximum
level marks on the overflow pipe. The float valve may
require re-adjustment due to varying water pressures�
It is important that the correct float level is checked during
installation� An incorrect setting can cause the water to
overflow or starve the circulating pump of water during
initial start up of the Cooler�
NOTE
The NORMAL water level, after the unit has been shutdown, is approximately 10 mm above the
initial water level setting as water returns to the tank from the pads.
12.3 BRIVIS AD BLEED OFF
To ensure the water in the tank is clean and fresh, a small amount continuously flows from the unit during operation.
This is called “bleed off”. This prevents a build up of salts and minerals in the tank (which can accelerate filter pad
and component deterioration) by constantly topping it up with fresh water�
The rate of bleed off depends on the local water quality, the capacity of the Cooler and local weather conditions.
Poor water quality and high temperatures require a higher bleed rate to ensure that the water remains consistently
fresh and clean�
12.4 BRIVIS AD BLEED RATE SETTINGS
The bleed rate has been factory set to a nominal rate to suit the model� However, the bleed rate should be adjusted
within the following range to suit local conditions�
NOTE
If the unit is fitted with a Dump Valve these bleed rates may be reduced by up to 50%.
Brivis AD Models Litres per hour
AD56 BAL 35 – 60
AD66 35 – 60
AD66 BAL 35 – 65
AD86 35 – 70