Viessmann Vitocal 242-S Installation And Service Instructions Manual page 112

Commissioning/service reports
Hydraulic parameter report
Setting and test values
Testing the external heating circuit pumps
Circulation pump type
Circulation pump stage
Overflow valve setting
Commissioning, primary circuit
Air intake temperature
("Diagnosis" "System overview")
Ó
Air discharge temperature
("Diagnosis" "System overview")
Ó
Temperature differential (air intake/
discharge) T:
Δ
At secondary circuit flow temperature
■
= 35 °C and air intake temperature
15 °C
≤
At secondary circuit flow temperature
■
= 35 °C and air intake temperature
15 °C
>
Testing the mixer, heat pump and cylinder heating
Checked under the following conditions:
Room temperature
Outside temperature
Temperature "Cylinder temp. top" con-
stant?
Secondary circuit flow temperature
Temperature differential
Δ
"Flow temp. secondary" / "Return temp.
sec."
112
°C
°C
K
K
°C
°C
°C
T K
Setpoint Commissioning
4 to 8
4 to 13
Yes ( 1 K)
±
Rising From
6 to 8
Maintenance/
Service
Open From Open