MHG Heating Ltd ©
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre Waterfield Tadworth Surrey KT20 5LR
Phone: 0845 6448802 Fax: 0845 6448803 Email:
010911
Level Two Engineer Parameters
#
Description Range
16 & 27 H
(16 & 27 HS)
27 S
[47 S]
45,75,77 H
75 & 77 HM
{Cascade Slave
Boilers}
H90
Reduced Temperature for DHW
8….60
10
10
10
10
H91
DHW Production Control
(0=Time control 1=Constant)
0…1
0
1 0 0
H93
DHW Production Control 0=Non Eco 1=Eco
0…1
0
0
0
0
H94
DHW Secondary Pump Control
(0= As H91. 1= As HWS Time Switch)
(K2, X2:03, H615:6)
0…1
0
0 0 0
H503
Minimum boiler setpoint temperature
(20 °C<=TkSmin<=TkSmax)
20 ... 90 °C
20
20
20
20
H504
Maximum boiler setpoint temperature
(TkSmin<=TkSmax<=90 °C)
20 ... 90 °C
90
90
90
90
H505
Boiler setpoint at design outside temperature
20 ... 90 °C
85
85
85
85
H506
Minimum flow setpoint temperature
(20 °C<=TvSmin<=TvSmax)
20 ... 90 °C
25
25
25
25
H507
Maximum flow setpoint temperature
(TvSmin<=TvSmax<=90 °C)
20 ... 90 °C
90
90
90
90
H516
Summer / winter changeover temperature
(30 °C: S / W changeover deactivated)
8 ... 30 °C
18
18
18
18
H532
Heating curve slope heating circuit 1
1 ... 40
32
32
32
32
H533
Heating curve slope heating circuit 2
1 ... 40
1
1
1
1
H536
Maximum speed at maximum output in heating
mode
(maximum speed limitation)
0 ... 9950 rpm
5000
5000
[7000]
7000 7000
H541
Maximum degree of modulation in heating
mode
(LmodTL <= PhzMax <= LmodVL)
0 ... 100 %
65
65
[100]
100 100
H542
Minimum boiler output in kW
(lower calorific value)
0 ... 9999 kW
6
6
[15]
15 15
H543
Maximum boiler output in kW
(lower calorific value)
0 ... 9999 kW
25
25
[75]
75 75
H544
Overrun time of pumps, max. 210 min
(setting 255: continuous operation of Q1)
0 ... 255 min
10
10
10
10
H545
Minimum burner pause time
(heat demand-dependent switching hysteresis)
0 ... 3600 s
300
300
300
300
H551
Constant for quick setback without room
influence
0 ... 20
2
2
2
2
H552
Hydraulic system adjustment
0 ... 255
67
70
66
80
554
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
b0=1
b1=0
b2=1
b3=1
b4=0
b5=1
b6=0
b7=0
