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ULTRAMAX PB 65 - 120
47 L290 ©MHS Boilers 13/12/2010
Display
or
QAA73 #
Function / Description
Range
Default Values
65
85
100
120
H90
Reduced Temperature for DHW
8….60
10
10
10
10
H91
DHW Production Control
(0=Time control 1=Constant)
0…1
0
0
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
H501
Minimum room set point
(10 °C<=TrSmin<=TrSmax)
10 ... 30 °C
10
10
10
10
H502
Maximum room set point
(TrSmin<=TrSmax<=30 °C)
10 ... 30 °C
25
25
25
25
H503
Minimum boiler set point temperature
(20 °C<=TkSmin<=TkSmax)
20 ... 90 °C
20
20
20
20
H504
Maximum boiler set point temperature
(TkSmin<=TkSmax<=90 °C)
20 ... 90 °C
85
85
85
85
H505
Boiler set point at design outside
temperature
20 ... 90 °C
80
80
80
80
H506
Minimum flow set point temperature
(20 °C<=TvSmin<=TvSmax)
20 ... 90 °C
20
20
20
20
H507
Maximum flow set point temperature
(TvSmin<=TvSmax<=90 °C)
20 ... 90 °C
80
80
80
80
H508
Minimum DHW set point temperature
(10 °C<=TbwSmin<=TbwSmax)
10 ... 80 °C
10
10
10
10
H509
Maximum DHW set point temperature
(TbwSmin<=TbwSmax<=80 °C)
10 ... 80 °C
65
65
65
65
H510
Flow temperature set point boost with
DHW heating
0 ... 30 °C
15
15
15
15
H511
Boiler frost protection switch-on
temperature
(5 °C<=TkSfrostEin<TkSfrostAus)
5 ... 50 °C
5
5
5
5
H512
Boiler frost protection switch-off
temperature
(TkSfrostEin<TkSfrostAus<=50 °C)
5 ... 50 °C
25
25
25
25
H513
Switch-off temperature for pump overrun
(after DHW heating)
20 ... 90 °C
70
70
70
70
H514
Boiler temperature set point boost with
mixing circuit
0 ... 30 °C
5
5
5
5
H515
Maximum limitation of boiler temperature
(TL function 1)
0 ... 100 °C
95
95
95
95
H516
Summer / winter changeover temperature
(30 °C: S / W changeover deactivated)
8 ... 30 °C
20
20
20
20
H517
Maximum control differential; when
exceeded, minimum pause time will be
aborted
0 ... 90 K
20
20
20
20
H518
Maximum temperature gradient of boiler
set point ramp in heating mode
(0: no set point ramp)
0 ... 255 K/min
0
0
0
0
H519
Design outside temperature
(for sizing the heating plant)
-50 ... 20 °C
-1
-1
-1
-1
H520
Reduction of room set point when using
time switch (dTrAbsenk=0: acting on
heat demand)
0 ... 10 K
10
10
10
10
H521
Delta flow / return temperature at
TiAussenNorm, 2. 5 <=...<= dTkTrMax
2.5 ... 20 K
20
20
20
20
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  • What is the fault code 153 on ultramax pb 120 boiler Submitted on 10-12-2021 at 10:53

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