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This based on average pool depth of 4' 6" (4.5 ft)
GAS SUPPLY
CONNECTIONS
DANGER: Make sure the gas on which the boiler
will operate is the same type as specified on the
boiler model and rating plate.
Gas piping must have a sediment trap ahead of the
boiler gas controls, and a manual shut-off valve locat-
ed outside the heater jacket. A pounds to inches
Fig. 15: Double Boiler - Pool Application
Table H: ADB Pool Sizing; Indoor or Outdoor
regulator must be installed to reduce to gas supply
pressure to under 14 in. WC. The regulator should be
placed a minimum distance of 10 times the pipe diam-
eter upstream of the boiler gas controls. All gas piping
must be tested after installation in accordance with
local codes. The boiler and its gas connection must be
leak-tested before placing it in operation.
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