Gas Supply/Electrical Supply - gledhill GC2000/120/E-OV Design, Installation & Servicing Instructions

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Figure 6 Schematic Diagram
PRE-MIX BURNER (MODULATES
1/1 AIR/GAS RATIO)
ELECTRONIC CONTROL
BOILER OVERHEAT
THERMOSTAT
PRESSURE EXPANSION
RELIEF
VESSEL
VALVE
STORE
LIMIT
T'STAT
PRIMARY TEMP
CONTROL 82 ± 2˚C
SENSOR
BOILER
THERMAL STORE
PUMP
CONDENSATE
DRAIN
P.R. VALVE
DISCHARGE
CH CH
FLOW RETURN
Not fitted to models suitable for open vented
heating systems
Figure 7 Appliance Hydraulic and Control System
Supplied By www.heating spares.co Tel. 0161 620 6677
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SYSTEM
ELECTRIC BOILER
MODELS2000/120/E
AND/130/E ONLY
DHW PUMP
CH
PUMP
PLATE
HEAT EXCHANGER
HEAT EXCHANGE
DRAIN
SENSOR
DHW
DHW
HOT COLD
OUT
IN
DESCRIPTION
GAS SUPPLY
1. The Local Gas Supplier should be consulted
at the installation planning stage in order
to establish the availability of an adequate
supply of gas.
2. An existing service pipe MUST NOT be used
without prior consultation with the Gas
Supplier.
3. A gas meter can only be connected by the
Local Gas Supplier or by his Contractor.
4. An existing meter should be of sufficient size
to carry the maximum boiler input plus the
demand of any other installed appliance,
(BS 6891 : 1988). See section Technical Data
for the gas required for each specific model.
Table 1.
5. A minimum of 22mm diameter pipework
to within 1 metre of the appliance gas cock
should be fitted.
6. The governor at the meter must give a
constant outlet pressure of 20mbar when
the appliance is running.
7. The gas supply line should be purged.
WARNING: before purging open all doors
and windows,also extinguish any cigarettes,
pipes, and any other naked lights.
8. The complete installation must be tested
ELECTRICAL SUPPLY
1. The mains supply required is 230V
50Hz. All GulfStream 2000 models are fused
internally. Minimum external fuse rating
INDEPENDENT
and the mains supply cable specification
POWER SUPPLY
will vary according to model type. Refer to
''Electrical Wiring'' for complete details. All
9kW
fuses must be ASTA approved to BS 1362.
THE APPLIANCE MUST BE EARTHED.
2. All external wiring to the boiler must be
in accordance with the latest I.E.E. Wiring
Regulations,and any local regulations which
apply.
3. There must be only one common isolator for
the boiler and its control system,and it must
provide complete electrical isolation via a
fused double pole isolator with a contact
DHW
SENSOR
separation of at least 3mm in both poles.
4. In the event of an electrical fault after
DHW PLATE
installation of the appliance, preliminary
electrical systems checks must be carried
out i.e. Earth Continuity, Short Circuit,
Polarity, and Resistance to Earth.
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