REMEHA Gas 210 ECO, Руководство пользователя

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8
Remeha
Gas 210 ECO
GENERAL
These user guidelines contain useful and important
information for the correct operation and maintenance
of the Remeha Gas 210 ECO. Furthermore, important
instructions are given to ensure safe and trouble-free
boiler operation. Read these instructions carefully before
putting the boiler into operation, familiarize yourself with
its operation and control and strictly observe the
instructions given. Your installer usually supplies user guidelines for
the entire installation. Follow at first these
guidelines (if available).
Remark: As a user you are not allowed to change
any part of the boiler.
fig. 01 Cut away view of Remeha Gas 210 ECO (160
kW model shown)
PRINCIPLE OF THE BOILER OPERATION
On the inlet side of the fan (7) a specially designed IMS
gas / air ratio control unit (6) is located. The letters IMS
stands for Integrated Mixing System, a mechanical
mixing system in which air and gas are mixed in a fixed
proportion.On heat demand the IMS opens and the fan
starts to pre-purge. Combustion air is drawn into the
closed air box through the air inlet
(1) . The incoming air
is mixed optimally in the IMS-system with the gas from
the gas valve multiblock
(11) . The homogeneous gas /
air mixture is being brought to the burner (8) by the fan.
Depending on demand (under the dictates of flow/return
sensor and other external/internal control inputs) the
boiler output is controlled.
The mixture is initially ignited by the combined ignition/
ionisation probe
(9) which monitors the state of the
flame. The products of combustion in the form of hot
flue gases are forced through the cast aluminium heat
exchanger
(12) transfering their heat to the system
water (the flue gas temperature is reduced to approxi-
mately 5°C above the temperature of the system return
water). If the return temperature decreases below dew
point (55°C) the water vapour in the flue gases will
begin to condense out in the boiler, transfering it's latent
heat into the system water, increasing the output of the
boiler without increasing the gas consumption.
Condensation formed within the boiler and flue system
is discharged from the boiler to an external drain via the
drain pan / siphon
(18) supplied. The flue gases turn in
the drain pan (17) and are discharged vertically through
the flue gas connection (2) to atmosphere.