53
A
C
B
D
Fig. 50
The system has three separate water circuits, each
with different requirements in terms of the quality of fill
water, plus the DHW water circuit.
A
Gas condensing module and heating circuits
(page 55)
B
Fuel cell module and heating water buffer cylinder
(page 53)
C
Fuel cell module process circuit (page 70)
D
DHW
Filling the fuel cell module and heating water buffer cylinder
!
Please note
Unsuitable fill water increases the level of
deposits and corrosion. This can cause damage
to the appliance.
■
The fill and top-up water must be softened,
e.g. with a small heating water softener.
■
Total permissible hardness of the fill and top-
up water: < 0.02 mol/m
3
(0.11 °dH)
■
Antifreeze must not be added to the fill or top-
up water.
Commissioning, inspection, maintenance
Overview of water circuits
5775 636 GB
Summary of Contents for C3TB
Page 136: ...136 Troubleshooting Repairs gas condensing module cont 5775 636 GB Diagnosis ...
Page 143: ...143 Parts lists Heat cell assembly 5775 636 GB Components ...
Page 160: ...160 Parts not shown 0009 PCB IU100 B30 Parts lists Fuel cell assembly 5775 636 GB Components ...
Page 161: ...161 Parts lists Fuel cell assembly cont 5775 636 GB Components ...
Page 187: ...187 5775 636 GB ...
