POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
SECTION 3
PARAMOUNT
PAGE 11
GAS CONNECTION
Factory Settings: The PARAMOUNT is set at the
factory to a maximum heat load either for
- G20 gas (natural gas type H, Wobbe index
WoN = 15.0 k Wh/m
3
) or
- optional extra PARAKLPG.
LPG Version: In case error message “133” appears
Table 13, Page 54) the cause can be gas error
message “133” insufficiency. In this case check the
LPG gas tank.
Supply Pressure: The supply pressure should be
between the following values:
for natural gas - min. 17 mbar - max. 25 mbar
for LPG - nominal 37 mbar
The supply pressure should be read off as the flow
pressure at the measuring point on the gas valve.
The PARAMOUNT should never be put into
operation at supply pressures outside the specified
range. Advise the gas company if insufficient
pressure available.
CO
2
Content: During initial operation and regular
maintenance of the PARAMOUNT measure the CO
2
content in the flue gas.
The CO
2
content should be as follows:
with natural gas: between 8.3% and 8.8%
with LPG: between 9.5% and 10.0%
Exceptionally high CO
2
values can lead to incorrect
combustion (high CO values) and damage to the
burner. CO
2
values which are too low can lead to
ignition problems. The CO
2
value can be set by
adjusting the gas pressure on the gas valve.
ELECTRICAL CONNECTION
Electrical Connection (General):
Supply power 1/N/PE
AC230 V + 10% - 15%, 50 Hz max. 140 W, fuse: 6A
Observe the IEE and local regulations
The electrical connection should be made so that the
polarity cannot be mixed up and is connected
correctly.
Electrical Supply: A 230V 50 Hz AC single phase
electrical supply is required. The incoming mains
supply should be terminated via a double pole fused
isolator to the boiler, see wiring diagram for wiring
details. A fused supply is required. The boiler has a
6.3A internal fuse.
Cable Lengths: Cables for sensors of bus cables do
not carry mains voltage, but low voltage. They
should not be put parallel to mains wires (this may
lead to disturbances) otherwise screen cable should
be used.
Maximum lengths of wires for all sensors:
- Copper wires up to 20 m 0.6 mm dia
- Copper wires up to 80 m 1 mm
2
- Copper wires up to 120m 1.5 mm
2
Inside the boiler, all cables have to be laid in the
cable clips and when led put of the boiler, fixed in the
strain clamps.
Circulation Pumps: The electrical permitted load for
each pump output is I
Nmax
= 1A.
If pump has higher load a contactor should be used.
Fuses: Fused in control unit:
F1 – T 6.3 H 250; line
Connecting Sensors/Components: Observe wiring
diagram. Install and connect optional extras
according to the instructions enclosed. Complete
supply power connection. Check protective earth.
Connect optional extras according to wiring diagram.
Outdoor Temperatures Sensor (Supplied): The
outdoor temperature sensor is included in a separate
package. Connect according to wiring diagram.
Replacing Wires: All connection wires apart from
the mains connection must be replaced when
necessary with correct connection wiring. When
replacing the mains cable, only cables Type H05VV-
F complying with BS6500.
Contact Protection: After opening the
PARAMOUNT, refasten, the covering parts to be
screwed on with the appropriate screws to ensure
that no one can touch conductive parts on the inside
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