Viessmann Vitocal 252-A Series - Page 185

185
Hydraulic parameter report
Settings and test values Set value Commissioning Maintenance/
service
Check external heating/cooling circuit pumps
Circulation pump type
Circulation pump stage
Primary circuit commissioning
Air intake temperature °C
Air discharge temperature °C
Temperature differential (air intake/
discharge) ΔT:
■
At secondary circuit flow temperature
= 35 °C and air intake temperature
≤ 15 °C
K 4 to 8
■
At secondary circuit flow temperature
= 35 °C and air intake temperature
> 15 °C
K 4 to 13
Check of mixers, heat pump and cylinder heating
Checked under the following conditions:
Room temperature °C
Outside temperature °C
Cylinder temperature constant? Yes (±1 K)
Secondary circuit flow temperature °C Rising From To From To
Temperature differential ΔT
(Secondary circuit temperature spread)
K 6 to 8
Commissioning/service reports
Commissioning/service reports
6222080
Appendix