Technical data

© MHS Boilers Ltd
221106 Draft Copy E&OE
31
QAA73 #
Description Range
150 & 225
Standalone
Defaults
150 & 225
Cascade
Master
Defaults
150 & 225
Cascade Slave
Defaults
H506
Minimum flow setpoint temperature
(20 °C<=TvSmin<=TvSmax)
20 ... 90 °C 25 25 25
H507
Maximum flow setpoint temperature
(TvSmin<=TvSmax<=90 °C)
20 ... 90 °C 90 90 90
H516
Summer / winter changeover temperature
(30 °C: S / W changeover deactivated)
8 ... 30 °C 18 18 18
H532
Heating curve slope heating circuit 1 1 ... 40 32 32 32
H533
Heating curve slope heating circuit 2 1 ... 40 32 32 32
H536
Maximum speed at maximum output in heating
mode
(maximum speed limitation)
0 ... 9950 rpm 7000 7000 7000
H541
Maximum degree of modulation in heating mode
(
LmodTL <= PhzMax <= LmodVL
)
0 ... 100 % 100 100 100
H542
Minimum boiler output in kW
(lower calorific value)
0 ... 9999 kW 15 15 15
H543
Maximum boiler output in kW
(lower calorific value)
0 ... 9999 kW 75 75 75
H544
Overrun time of pumps, max. 210 min
(setting 255: continuous operation of Q1)
0 ... 255 min 10 10 10
H545
Minimum burner pause time
(heat demand-dependent switching hysteresis)
0 ... 3600 s 300 300 300
H551
Constant for quick setback without room influence 0 ... 20 2 2 2
H552
Hydraulic system adjustment 0 ... 255 80 80 80
H554
Setting flags: status code open-circuit sensor for
ANx channel suppressed / not suppressed
0 ... 255
b0=1
b1=0
b2=1
b3=1
b4=0
b5=1
b6=0
b7=0
b0=1
b1=0
b2=1
b3=1
b4=0
b5=1
b6=0
b7=0
b0=1
b1=0
b2=1
b3=1
b4=0
b5=1
b6=0
b7=0
H555
Setting flags 0 ... 255
b0=0
b1=0
b2=0
b3=0
b4=1
b5=0
b6=0
b7=0
b0=0
b1=0
b2=0
b3=0
b4=1
b5=0
b6=0
b7=0
b0=0
b1=0
b2=0
b3=0
b4=1
b5=0
b6=0
b7=0
H558
Setting flags 0 ... 255
b0=1
b1=0
b2=0
b3=0
b4=0
b5=0
b6=1
b7=0
b0=1
b1=0
b2=0
b3=0
b4=0
b5=0
b6=1
b7=0
b0=1
b1=0
b2=0
b3=0
b4=0
b5=0
b6=1
b7=0
H596
Running time of actuator in heating circuit 2
(TimeOpening / TimeClosing)
30 ... 873 s 150 150 150