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Siemens Building Technologies
Basic Documentation QAA73.110 Room unit
CE1P2284en
HVAC Products
Handling
10.07.2002
2.8.1 Overview of OEM parameters
Line
Function
Range
Unit
Resolution
Factory
setting
Space heating OEM
100
Maximum room temperature setpoint (TrwMax)
TRwMin ... 35
°C
0.5
35
101
Minimum room temperature setpoint (TrwMin)
4 ... TRwMax
°C
0.5
10
102
Gain factor of room influence (KORR)
0 ... 20
–
1
4
103
Quick setback constant (KON) (without room sensor)
0 ... 20
–
1
2
104
Boost of room temperature setpoint (DTRSA), boost
heating
0 ... 20
K
1
5
105
Limitation of rate of increase of flow temperature
setpoint
0 ... 15
K/min
0.5
5
106
Measured value correction of room temperature
–3.0 ... 3.0
°C
0.5
0
D.h.w. OEM
130*
Maximum d.h.w. setpoint (TBWmax)
TBWw 80
°C
1
60
131*
Setpoint of legionella function (d.h.w.)
8 ... 95
°C
1
65
132*
Dwelling time legionella function
0...360
min
10
0
133*
Effect of legionella function on circulating pump
No / yes
–
–
Yes
Service functions OEM
150
Info display
Temporary,
continuously
–
–
Temporary
151
Frost warning –.
– = inactive
–10 ... +10
°C
0.5
3.0
152
Operation lock
Locked,
released
–
–
Released
153*
Action occupancy button
On HC1 + HC2,
on HK1
–
–
On HC1+HC2
199
Software version (QAA73)
0 ... 99.9
–
1
–
* These lines are only displayed in OpenTherm Plus mode. Also, the relevant functions must be
supported by boiler control.
2.9 Commissioning
Prior to commissioning the controller, make the following checks:
•
Correct
mounting
•
Correct connection to OpenTherm bus
•
Enduser parameters are set as required
•
Heating engineer parameters are set in compliance with plant requirements
•
OEM parameters are set in compliance with technical requirements
The heating plant is started up via boiler control. To make the functional check, the
individual functions of the room unit are checked in the plant.
Prerequisites
Functional checks
