gledhill TORRENT DIRECT Design, Installation & Servicing Instructions page 46

COMMISSIONING
DO - Check the incoming mains water pressure. If it exceeds 3.5 bar at any point
in the 24 hour cycle then a pressure limiting valve set at 3.5 bar should be
fi tted where the cold supply enters the property.
DO - Check that all connections are in accordance with the labelling on the
thermal store.
DO - Fill the cistern manually or adjust the ballvalve so that the water in the F &
E cistern is set to the correct level.
DO - Restrict the ballvalve fi ll rate when full so that the overfl ow pipe can cope
with the fi ll rate in the event of a ballvalve failure.
DO - Make sure there is adequate clearance above the F & E cistern to service
the valve.
DO - Ensure that range-rated appliances are set to the specifi ed design heat
input and the boiler thermostat is set to maximum for all boilers.
DO - Ensure that the water level in the expansion cistern is at least 250mm
above the highest point on the radiator circuit and satisfi es the boiler head
required.
DO - Insulate any exposed pipework in the Torrent cupboard.
DO - Plumb the overfl ow warning pipe in 20mm minimum internal diameter
tubing to discharge in a conspicuous external position, using high
temperature uPVC or copper.
DO - Check the pump setting. This should be set as high as possible (consistent
with not creating noise) so as to give a small temperature difference across
the boiler, i.e. not greater than 11°C.
DON'T - Use a combined feed and vent on Torrent indirect installations.
DON'T - Use tube smaller than 28mm between boiler and Torrent when the boiler
exceeds 60,000 Btu (17kW) output.
DON'T - Use dipped fl ow and return pipes between boiler and Torrent unless the
boiler is fi tted with an overheat switch.
DON'T - place any clothing or other combustible materials against or on top of this
appliance.
Page 46