AL SERIES INSTALL OPERATION MAINTENANCE MANUAL
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INSTALLATION INFORMATION
3.4.3 Drain
The combination drain/overflow pipe outlet must be connected to a drainpipe with sufficient capacity to take the
discharge of water from the reservoir. The pipe must connect to a suitable drain or gutter. Drain must be lower than
base of pad assembly.
Note: Refer to local regulations to ensure discharge of drain / overflow water is in accordance with statutory
requirements.
Figure 14: Drain Configuration
3.4.4 Automatic Drain Valve
An optional automatic dump valve (Auto Drain Kit Installation. AL12-36 DST) is available. The valve either replaces the
Drain or can be installed in addition. The ADV is designed to empty the sump at the end of a cooling operation. There
are multiple configuration options what are explained in detail within the ADV manual. The ADV manual shall be used
to ensure correct installation and operation.
The Auto Drain Kit is supplied with a solenoid to control water flow into the unit. Where a solenoid is installed a back
flow prevention device and/or check valve must not be installed.
3.4.5 Bleed off Valve
To reduce the accumulation of salts and minerals in the re circulated water it is essential to bleed a certain amount of
water to waste, Increased flow of makeup water reduces the salt content. The bleed rate will vary with the water supply
quality, but initially should be set to Table 8: Bleed Off Rate. The bleed line from the flow delivery line inside the unit,
must be suspended through the overflow pipe or into the optional automatic drain valve.
AMI082-A
40MM PVC OVERFLOW
& PLUG
O’RING
40MM DRAIN
1½” BSP CONNECTION
DRAIN RUBBER SEAL
BASE
DRAIN LOCK
