PENSOTTI PCH 50B-H, Инструкция по эксплуатации

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INSTALLATION INSTRUCTION
22
3.6 Domestic Hot Water Circuit
The cold water supply pressure at the inlet to the boiler must be between 7.25 psi (0.5 bar) and 87 psi (6
bar).
In areas with higher water inlet pressure a pressure reducing valve must be fitted before the boiler.
The frequency of the heat exchanger coil cleaning depends on the hardness of the main water supply and
the presence of residual solids or impurities, which are often present in the case of a new installation. If the
characteristics of the main water supply are such that require it to be treated, then the appropriate treatment
devices must be installed, while in the case of residues, an in-line filter should be sufficient.
Central Heating circuit
In order to prevent scaling or deposits in the primary heat exchanger, the main supply water to the heating
circuit must be treated according to the requirements of local standards.
This treatment is indispensable in the case where the circuit is frequently topped-up or when the system is
often either partially or fully drained.
The boiler must be installed on a plumb/level surface to avoid improper operation.
In order to safeguard all waterside components, the supplied Fernox Commissioning Kit Must be
used in its entirety.
Condensate drain
Refer to the city, town or municipality have jurisdiction for codes regarding the proper discharge of
condensate
.
The condensate drain flexible pipe supplied with the boiler must be connected to a proper condensate trap.
The condensate discharge into the drainage system is allowed providing a condensate trap (siphon) is
installed.
Any condensate discharge pipe work external to the building (or in an unheated part of it) must be insulated
to protect against frost. Before switching the boiler On, check the correct condensate discharge.
3.7 Piping Diagrams
Expansion Tank Capacity
Max. System Operating
Temperature (°F)
Maximum System Water
Content (Gals.) *
100 114
110 85
120 65
130 52
140 43
150 36
160 30
170 26
180 24