Viessmann Vitoligno 300-P Service Instructions For Contractors page 26

Commissioning, inspection, maintenance
Further details regarding the individual steps
Pos. Description
7 Boiler circuit pump and
8
Thermostatic control valve
qP Vitocell 340-M/360-M
qQ High limit safety cut-out STB
qW DHW circulation pump ZP
qE Automatic thermostatic mixing valve
qR Three-way diverter valve for cylinder
heating
qT Cylinder temperature sensor STS
qZ Buffer temperature sensor above
qU
Buffer temperature sensor below
qI Cylinder temperature sensor STS
■ with integral solar control unit (sys-
tem with 1 heating circuit with mixer)
■ with external solar control unit
Vitosolic (system with 2 heating cir-
cuits with mixer)
wP Solar collectors
wQ Collector temperature sensor
■ with integral solar control unit (sys-
tem with 1 heating circuit with mixer)
■ with external solar control unit
Vitosolic (system with 2 heating cir-
cuits with mixer)
wW Solar-Divicon
wE
Solar circuit pump
wR Vitosolic 100 (for systems with 2 heat-
ing circuits with mixer)
eP
Heating circuit I
eQ Flow temperature sensor
eE 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
26
(cont.)
Control unit connection with
number of heating circuits
1 2
sL sL
sK sK
sA sA
% %
lª lª
l« l«
? M1 ? M1
gS M1 gS M1
sÖ M1 sÖ M1
1 with 2 with
solar solar
sL sL
sK sK
sA sA
% %
lª lª
l« l«
%Ê
wRS2
&Ê
wRS1
sF wRR1
? M1 ? M1
gS M1 gS M1
sÖ M1 sÖ M1