25
Instructions for the installer
Central heating installation with temperature controlled via a motorized mixing valve.
Domestic hot water with a separate coil type storage tank or plate heat exchanger and dedicated loading pump.
Back-up boiler with buffer function when fire wood is finished or for domestic hot water production during summer.
In summer the D.H.W. production can be supplied only by the back up boiler.
The two boilers are hydraulically connected in parallel and the motorized UV diverting valve, will ‘direct’ the GASOGEN
G3 2S boiler in the system circuit or the auxiliary boiler alongside: in this circuit the heating circuit water will not flow
through the boiler not operating, thereby reducing the heat losses.
The D.H.W. storage tank will necessarily have to be installed and connected according to the diagram below.
IMPORTANT: During the installation phase make sure the jumpers’ settings in the control panel are as indicated in 5.2.
The GASOGEN G3 2S boiler’s control panel automatically
switches off the fan and the recirculation pump if the boiler
temperature, (once 30 minutes have passed from closing the
upper loading door for firing the boiler), does not reach 65°C
(
minimum temperature
).
In this case, or when the fire wood finishes, the back-up boiler
will start firing automatically, provided the selector 22 of the
panel board is on (
0
) and the burner switch 23 is in pos.
II
, 30
minutes after the wood fired boiler temperature falls below 60°C.
The door of the wood fired boiler must be kept closed.
The wood fired boiler, in this case, will be excluded and it will
be possible to restart it after opening the door in order to load
new wood.
If the burner switch 23 is always kept on pos.
0
), the auxiliary
boiler’s burner will be always excluded.
Obviously, to permit operation of the back-up boiler, the control
panel must be in the ON position.
The GASOGEN G3 2S boiler’s control panel (and operation
cycle) can be reset only after the upper door is reopened for a
new restart, or by turning the mains switch 11. OFF and then
ON.
The operation logic of the GASOGEN G3 2S control panel, will
switch off the fan and the recirculation pump once the fire wood
finishes.
The central heating system pump will operate only after the
boiler exceeds the minimum temperature of 65°C.
When the boiler temperature falls below 65°C, the central
heating pump will shut down.
The D.H.W. storage pump will operate in priority compared to
the central heating pump.
The
diverting valve (UV)
, will direct the returns towards the
boiler ready to operate in that moment, thus reducing the heat
losses.
The
flow sensor (Tc)
must be always placed in the boiler’s
bulb holder (
see fig. 17
).
D.H.W production will have priority via the storage tank’s loading
pump (PR), controlled by a changeover thermostat. The D.H.W.
recirculation pump must be connected to the mains
independently from the GASOGEN G3 2S boiler’s control panel.
During summer we recommend that D.H.W. is requested via
the back-up boiler, or with the wood fired boiler provided the
indications given in 6.11, page 59, are strictly followed.
CALDAIA A LEGNA
KKP
VE
MKP
IR
Tc
PR
PRODUTTORE ACQUA
CALDA SANITARIA
B
AB
UV
A
B
AB
VM
A
CALDAIA DI SOCCORSO
GASOLIO/GAS
M
M
fig. 27
WOOD FIRED BOILER
BACK UP BOILER
DOMESTIC HOT
WATER STORAGE TANK
Summary of Contents for Gasogen
Page 1: ...Wood Fired Boiler Gasogen 29 93kW Installation and Servicing Manual ...
Page 66: ...Gasogen notes ...
Page 67: ...notes ...
