Hidrotermal HT-BFV17 Installatie- en onderhoudshandleiding - Pagina 5
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Only simple tools (screwdriver and wrenches), plus pipe sealant for plastic adapters, are required to install
and service the filter.
1.The filter should be placed on a reasonably level surface and provide adequate drainage.
Position the filter so that the piping connections, control valve are convenient and accessible for operation and
service ,The filter should be placed as close to the pool as possible to reduce line loss from pipe friction.
2.Loading the sand media. Filter sand media is loaded through the top opening of the filter.
a.Loosen flange clamp and remove filter control valve (if previously installed).
b.Cap internal pipe with plastic cap to prevent sand from entering it.
c.We recommend filling tank approximately half full of water to provide a cushion effect when the filter sand is
poured in. This helpsprotect the under-drain laterals from excessive shock.
d.Carefully pour in correct amount and grade of filter sand. (Be sure center pipe remains centered in
opening.) Sand surface should be leveled and up to about the middle of the filter tank. Remove plastic cap
from internal pipe.
3.Assemble filter control valve to filter tank.
a.Insert filter control valve (with O'ring in place) into the tank neck, beware that the center pipe slips into the
hole in the bottom of the valve.
b.Place two plastic clamps around valve flange and tank flange and tighten just enough so that the valve may
be rotated on tank for final positioning.
c.Carefully screw pressure gauge (with O'ring in place) into tapped hole in valve body. Do not over-tighten.
d. Connect pump to control valve opening marked PUMP. After connections are made, tighten valve flange
clamps with screwdriver,tap around clamp with screwdriver handle to help seat valve flange clamp.
4.Make return to pool pipe connection to control valve opening marked RETURN and complete other
necessary plumbing connections, suction lines to pump, waste, etc.
5.Make electrical connections to pump following pump instructions.
6.To prevent water leakage, be sure all pipe connections are tight.
5 Install/Start up of filter
1. Be sure correct amount of filter sand is in tank and that all connections have been made and secured.
2. Push down control valve handle and rotate to BACKWASH position. (To prevent damage to control valve
seal, always push down handle before turning.)
3. Start pump according to pump instructions (be sure all suction and return lines are open),allowing the filter
tank to fill with water .Once water is flowing out of the remove any impurities or fine sand particles in the sand
media.
4. Stop the pump and set valve to RINSE position. Start pump and operate until water in sight glass is clear,
about 1/2 to 1 minute. Stop the pump and set valve to FILTER position and then restart pump. The filter is
now operating in the normal filter mode, filtering dirt particles from the pool water.
5. Adjust pool suction and return valves to achieve desired flow. Check system and filter for water leaks and
tighten connections,bolts, nuts, as required.
6. Note the initial pressure gauge reading when the filter is clean. (It will vary from each pool depending upon
the pump and general piping system.) As the filter removes dirt and impurities from the pool water, the
accumulation in the filter will cause the pressure to rise and flow to diminish. When the pressure gauge
reading is 150KPa/1.5Kg/cm,higher than the initial "clean" pressure you noted,it is time to backwash the filter
(see BACKWASH under filter and control valve functions).
During initial clean-up of the pool water it may be necessary to backwash frequently
due to the unusually heavy initial dirt load in the water.
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