Potterton Eurocondense Plus Installation Manual page 9

GAS CONNECTION / ELECTRICAL CONNECTION
Electrical Supply
Power Requirements
Wire lengths
Circulating pumps
Fuses
Connection
Outside temperature sensor
(included)
Replacing wires
Commissioning
A 230V 50Hz AC single phase electrical supply is required. The incoming
mains supply should be terminated via a double pole fused isolator to the
boiler, see Fig. 17 for wiring details. A fused supply is required. The Boiler
has a 6,3 A internal fuse.
The electrical supply is to feed control circuits and gas vales.
Typical loadings: EC 90
EC 120
EC 160
EC 200
EC 250
All on site wiring shall conform to I.E.E. Regulations.
Wires for sensors or bus information are not fed with mains voltage but
with low voltage. They should not be put parallel to mains wires (this may
lead to disturbances), otherwise screened wires have to be used.
Maximum lengths of wires for all sensors:
– Copper wires upto 20 m: 0,6 mm‡
– Copper wires upto 80 m: 1 mm
– Copper wires upto 120 m: 1,5 mm
Inside the boiler, al cables have to be laid in the cable clips an, when led
out of the boiler, fixed in the strain relief clamps.
The electrical permitted load for each pump output is I
Fuses in the control unit:
- F1 - T 6,3 H 250: mains
The wiring diagram must be followed!
Optional extras must be fitted and connected according to the instructions
provided and the wiring diagram.
Connect to the mains. Check earth continuity and resistance to earth.
The outside temperature sensor is located under the hood of the control
unit. See wiring diagram for connection.
All connecting wires apart from the mains connection must be replaced
when necessary with special wire. When replacing the mains cable only
cables Type H05VV-F complying with BS 6500 Table 16 must be used.
Before commissioning the boiler, read the operating instructions!
The exhaust gas levels must be checked.
The CO content must lie between ¬ 8 - 8.5 % (Natural gas)
2
If the value is not reached, the gas pressure must be adjusted.
Commissioning must be undertaken by C.O.R.G.I. registered installers.
The latter must inform the operator about handling and operation of the
unit and its safety devices and hand over the operating instruction(s) for the
central heating system. These instruction(s) must be kept permanently at
the place of installation.
130 W
150 W
175 W
200 W
320 W
2
2
= 1 A.
N max
9.5 - 10.0% (LPG, EC PLUS 90, 120)
9.0 - 9.5% (LPG, EC PLUS 160,
200, 250).
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