Viessmann VITOCELL 360-M Installation And Service Instructions Manual page 7

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(cont.)
A Heating water flow 1 (HV1) from the
heat source/ventilation (EL)
B DHW/DHW circulation (Z)
C Thermometer sensor retainer
D Sensor well for cylinder temperature
sensor 1 (SPR1)
E Heating water flow 2 (HV2)/heating
water return 1 (HR1)
Central heating backup
F Sensor well for cylinder temperature
sensor 2 (SPR2) and thermometer
sensor
G Heating water return 2 (HR2)
Central heating backup
H Sensor well for thermometer sensor
and cylinder temperature sensor 3
(SPR3)
K Heating water return 3 (HR3)
to the heat source
L Cold water (KW)
M Drain (E)
N Heating water flow solar (HVs)/drain
solar (EL)
O Thermometer sensor retainer
P Heating water return solar (HRs)
Preparing for installation
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