Viessmann Vitoligno 300-P Service Instructions For Contractors page 22

Commissioning, inspection, maintenance
Further details regarding the individual steps
Pos. Description
6 Temperature sensor
7 Boiler circuit pump and
8 Thermostatic control valve
qP
DHW cylinder
qQ Cylinder temperature sensor STS
qW DHW circulation pump ZP
qE Circulation pump for cylinder heating
UPSB
qR
Cylinder temperature sensor STS
qT High limit safety cut-out STB
wP Solar collectors
wQ Collector temperature sensor
wW Solar-Divicon
wE Solar circuit pump
wR Solar pump line
wT Circulation pump
wZ
Stratification pump
wU Automatic thermostatic mixing valve
wI Vitosolic 200
eP Heating circuit I
eQ Flow temperature sensor
eW Mixer motor DN 20 to 50, R½" to
R1¼"
eW Heating circuit pump M1 (heating cir-
cuit I)
rP Heating circuit II
rQ
Thermostat for underfloor heating sys-
tem
■ Immersion thermostat
■ System thermostat
rW Flow temperature sensor
rR
Mixer motor DN 20 to 50, R½" to
R1¼"
rE Heating circuit pump M2 (heating cir-
cuit II)
rT Solar buffer cylinder
rZ Buffer temperature sensor above
rU Buffer temperature sensor below
22
(cont.)
Control unit connection with
number of heating circuits
1 2 1 with 2 with
solar solar
sL sL
% %
sK sK
sA sA
wIS2 wIS2
wIS1 wIS1
wIR1 wIR1
wIR4 wIR4
wIR5 wIR5
? M1 ? M1
gS M1 gS M1
sÖ M1 sÖ M1
? M2
gS M2
sÖ M2
lª lª
l« l«