UNGARO BiFuel en ELS34, Руководство пользователя

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10
P1
S2 = Buffer tank probe
P1 = Circulation pump
S2
S1
fig. 11 - Configuration with DHW Tank
When the temperature set is reached, the
stove goes in modulation and then in stand
by. It turns on automatically in base on the
temperature set of the tank.
The forced heated air activates when the
exhaust gasses temperature reaches the
manufacturer’s settings. The hot air flow
depends on the stove power setting.
In case of anomalies or excessive
temperatures, the valve P2 dissi-
pates hot water into the radiators.
Keep the radiators open for extra
security.
3.11 Configuration with buffer tank
In this sheme ( fig.11) the stove is con-
nected to an external vessel. The mother-
board manages the temperature set in the
tank.
Contact the Technical Support in
your area to activate the configura -
tion with buffer tank.
For the buffer tank settings see the chapter
“ Thermostat Settings”
3.12 Additional Components
An additional external expansion vessel
may have to be fitted, based on the water
capacity of the entire heating system.
If the system water capacity is over 150
liters, an anti-condensation system is re-
quired. A pressure compensator must be
installed too to maintain a preset pressu-
re drop. Anti-condensation heater circuit is
required for 2 Fire and Bifuel models.
Install an external properly-sized circula-
ting pump if the prevalence is high and the
built-in circulation pump is not enough to
manage it. An adequate provision in the
system for heat dissipation from the ther-
mostove, especially in the heating systems
with zone valves.