Technical Data
15
MAXXfl o EVO
3.5 SYSTEM SCHEMATIC EXAMPLES (CONTINUED)
Menu
Parameter
Settings
DHW
1660
Pump release
Set the desired option for activation of the circulation pump, normally activated with time
program 4 (DHW) or independent of DHW via time program 5
1661
Pump repeat cycle
When enabled, the circulation pump will switch on and off during the activation period (10
minutes on and then off repeatedly for 20 minutes). This function is particularly useful when
the heat losses on the return pipes are high and the burner works continuously for a long
time, with little or no hot water draw off .
1663
Circulation setpoint
Default set point is 45
O
C. When the B39 sensor is installed, the controller will check the DHW
return temperature during pump activation time. Each time the temperature obtained by the
sensor drops below the circulating setpoint, the pump continues to run until the setpoint is
reached (minimum duty cycle is 10 minutes). During a legionella cycle, the temperature on
the sensor is used to set the dwell time, ensuring that the entire tap water system reaches
the legionella setpoint for the total set dwell time. The dwell time counter is not started until
the temperature on the sensor reaches the legionella setpoint.
Parameter settings table:
EXAMPLES 1 & 2: SINGLE AND PARALLEL MAXXfl o EVO (SETUP)
E
L N PE L N
1 2 3 4
9
Bl
ack
Re
la
y
5 6 7 8
Wh
ite
Re
la
y
CO
NO
NC
CO
NO
NC
(SUPPLIED BY OTHERS)
Содержание MAXXflo EVO CWH 30/201
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