Supplied By www.heating spares.co Tel. 0161 620 6677
Page 46
Page 47
GULFSTREAM
2000
APPENDIX A
GULFSTREAM 2000 - SP MODELS ONLY
The CA backflow prevention valve assembly
is supplied complete with a tundish for
connection to the discharge pipe.
The construction of the valve is such that the
mains cold water cannot discharge through
the tundish even when the mains side check
valve is faulty. This is because the sliding piston,
which opens the main port also closes the vent
(i.e. tundish) port. The valve will therefore only
discharge if the check valve on the appliance/
system side is faulty and the mains pressure is
less than the pressure in the appliance/system.
The discharge pipe must have a continuous fall
throughout its length. The method of sizing
the pipe is shown opposite. A 22mm minimum
diameter discharge pipe is recommended, (the
discharge pipe diameter must be at least one
size larger than the cold water inlet).
NOTE : DO NOT open the control/isolating
valves (C.V.) for the CA backflow prevention
valve until the heating system is complete.
ANTI-VACUUM VALVE
Details of where to fit the anti-vacuum valve
are shown in the diagram of the appliance on
page 1.
WARRANTY
Please note that the CA valve and anti-vacuum
valve MUST be fitted with the SP model to
enjoy the full benefits of the Warranty.
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DISCHARGE PIPE DIAMETERS
Summary of Contents for GC2000/120/E
Page 30: ...Supplied By www heating spares co Tel 0161 620 6677 Page 30 FAULT FINDING ...
Page 31: ...Supplied By www heating spares co Tel 0161 620 6677 Page 31 GULFSTREAM 2000 FAULT FINDING ...
Page 35: ...Supplied By www heating spares co Tel 0161 620 6677 Page 35 GULFSTREAM 2000 FAULT FINDING ...
Page 36: ...Supplied By www heating spares co Tel 0161 620 6677 Page 36 FAULT FINDING ...
Page 37: ...Supplied By www heating spares co Tel 0161 620 6677 Page 37 GULFSTREAM 2000 FAULT FINDING ...
Page 50: ...Supplied By www heating spares co Tel 0161 620 6677 ...
Page 51: ...Supplied By www heating spares co Tel 0161 620 6677 ...
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