Lync AEGIS Controller
1: INTRODUCTION
L-OMM-013_A
• 4/20/2022Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST
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The anti-Legionella cycle consists of two phases - in phase 1 the compressor is active, and the
pump modulates as per standard thermoregulation (on
“ALG10 Unit anti-Legionella
set”), while in phase 2 the compressor is inactive, and the pump forced to default speed (on
“ALG11 Unit phase 2 pump set”):
1.9.1. PHASE 1
The "Anti-Legionella active" relay contact is closed.
The set point
“ALG10 Anti-Legionella unit set” is forced (e.g.176-194°F [80-90 ° C]);
Phase 1 ends when the BT1 probe rises above
“ALG08 Phase 1 set BT1” (default = 140°F [60 °
C]) and at the same time the BTL probe reaches at least the
“ALG09 Phase 1 set BTL” (default =
131°F [55 ° C]).
1.9.2. PHASE 2
The "Anti-Legionella active" relay contact remains closed
The "Anti-Legionella phase 1 completed" relay contact is closed
At the end of phase 1 the compressor switches off while the secondary pump is brought to a
fixed speed “ALG11 Unit phase 2 pump set” until the BTL probe reaches the “ALG09 Phase
2 set BTL” (e.g. 70 ° C). The anti-Legionella cycle is considered concluded when this
condition persists for a period of time “ALG12 Min. time phase 2” (e.g. 1 min).
At the end of the cycle, the "Anti-Legionella active" and "Anti-Legionella phase 1 completed"
relay contacts are opened.
NOTE:
The maximum time parameter of the anti-Legionella
cycle “ALG06 Anti-Legionella max
time” is provided (e.g. 120 min.) after which the unit returns to normal operation.
NOTE:
In a defrost cycle, the defrost function has priority over the anti-Legionella function.
