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Siemens Building Technologies
Basic Documentation QAA73.110 Room unit
CE1P2284en
HVAC Products
Handling
10.07.2002
2.7.1 Overview of heating engineer parameters
Line
Function
Range
Unit
Resolution
Factory
setting
Service values
51
Current room temperature setpoint HC1
Nominal, reduced or frost protection setpoint
4 ... 35.0
°C
0.5
–
52*
Current room temperature setpoint HC2
Nominal, reduced or frost protection setpoint
4 ... 35.0
°C
0.5
–
53*
Outside temperature attenuated (
is set to actual value by
pressing both buttons -/+ for 3 s
)
–50 ... +50
°C
0.5
–
54*
Outside temperature composite
–50 ... +50
°C
0.5
–
55*
Actual value 2 of d.h.w. temperature
0 ... 127
°C
1
–
56*
D.h.w. flow rate
0 ... 16
l/min
0.5
–
57*
Actual boiler return temperature
–40 ... 127
°C
1
–
58*
Actual value of the flue gas temperature
–40 ... 500
°C
1
–
59*
Actual temperature of solar collector
–40 ... 250
°C
1
–
61*
Actual temperature of solar storage tank
–40 ... 127
°C
1
–
62
OpenTherm mode
Lite, Plus
–
–
–
63
Current flow temperature setpoint HC1
0...100
°C
1
–
64*
Current flow temperature setpoint HC2
0...100
°C
1
–
Frost protection for the plant (HK1 and HK2)
70
Heating curve slope HC1 – –
= HC1 inactive
2.5 ... 40.0
–
0.5
15.0
71
Minimum limitation of flow temperature HC1 (TV1 min)
8 ... TV1max
°C
1
8
72
Maximum limitation of flow temperature HC1
(TV1max)
TV1min ... ...TKmax
°C
1
80
73
Parallel displacement of heating curve HC1
–4.5 ... +4.5
K
0.5
0.0
74*
Type of building construction
Heavy, Light
–
–
Light
75*
Room influence
None, on HC1, on
HC2, on HC1 +
HC2
–
–
on HC1
76
Switching differential of room temperature (switch-off
point)
– – . – = inactive
0.5 ... 4.0
K
0.5
0.5
77
Adaption of the heating curve
Inactive,
active
–
–
Active
78
Optimum start control maximum forward shift
0 ... 360
min
10
100
79
Optimum stop control maximum forward shift
0 ... 360
min
10
30
80*
Heating curve slope HC2 – –.
– = HC2 inactive
2.5 ... 40.0
–
0.5
15.0
81*
Minimum limitation of flow temperature HC2 (TV2min)
8 ... TV2max
°C
1
8
82*
Maximum limitation of flow temperature HC2
(TV2max)
TV2min ... ...TKmax
°C
1
80
83*
Parallel displacement of heating curve HC2
–4.5 ... +4.5
K
0.5
0.0
D.h.w.
90*
Reduced setpoint of d.h.w. temperature (TBWR)
8 ... TBWw
°C
1
40
91
Release of d.h.w. heating
24h/day, TSP HC
– 1h, TSP HC,
TSP d.h.w.
–
–
TSP HC-1h
92*
Legionella function
Off,
weekly,
daily
–
–
weekly
93*
Operating mode selector of d.h.w. heating
Without ECO,
With ECO
–
–
Without
ECO
94*
Control of d.h.w. circulating pump
D.h.w. release
D.h.w. program
Program 2
–
–
D.h.w.
program
