35
A
B
Fig. 33
2.
Insert the plug on connecting cable
A
from the
fuel cell module into the process controller of the
gas condensing module.
3.
Pass LON cable
B
through the left-most cable
entry and plug it into the Vitocom 300 (see
page 33).
To connect the fuel cell module to the LON, see
page 73.
Outside temperature sensor
!
(hard-wired)
Fitting location for outside temperature sensor
■
North or north-westerly wall, 2 to 2.5 m above
ground level; on multi storey buildings, in the upper
half of the second floor
■
Not above windows, doors or vents
■
Not immediately below balconies or gutters
■
Never render over
Outside temperature sensor connection
2-core lead, length up to 35 m with a cross-section of
1.5 mm
2
Note
To fit a wireless outside temperature sensor (wireless
accessories), see page 41.
External demand via switching contact
Connection options:
■
EA1 extension (accessory, see separate installation
instructions)
■
Plug
lH
When the contact is closed, burner operation is load-
dependent. The boiler water is heated to the set value
selected in coding address "9b" in group
"General"/1
.
The boiler water temperature is limited by this set
value and by the electronic maximum limit (coding
address "06" in group
"Boiler"/2
).
!
Please note
Live contacts lead to short circuits or phase fail-
ure.
The external connection
must be floating
and
meet the requirements of protection class II.
Installation sequence
Electrical connections
(cont.)
5775 636 GB
Installation
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 ...
