Ariterm 35+, Operating Instructions Manual

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5
The water returning to the boiler must be about 70°C. This is achieved by using a bypass con-
nection in accordance with the circuit diagram. In order to maintain a sufficiently high tempe-
rature during the heating period, the convection surfaces should be kept clean, to ensure highly
efficient burning. The life expectancy of the boiler will also be increased, because corrosive acids
will not be created on the heating surfaces.
INSTALLATION
Part Name
1 Ariterm 35+ boiler
2
3-way valve, underfloor heating
3 3-way valve, radiator heating
4 Heat supply pump, underfloor heating
5 Heat supply pump, radiator heating
6 Underfloor heating system manifold
7 Radiator heating system
8 Expansion vessel
9
Service shut-off valve
10 Safety vent
11 Refill valve
12 Input mixing valve
13 Process water circulation pump
14 Thermal safety device
15
Accumulator switch
Laddomat 21 (LVI-5012912)
16
Warm water accumulator
Connection to boiler top
Ball check valve 1 ¼” IG
Internal thermal valve
Internal pump Wilo RS 25-6/3
Thermometer
Connection to accumulator
tank bottom
Automatic cycle valve
in case of power cut
Easy-to-clean dirt pocket to
prevent operating errors
Connection to boiler bottom
Thermometer
Filling connection R15
Ball check valve 1 ¼” IG
Thermometer
Ball check valve 1 ¼” IG