Raypak X94, Инструкция по установке и эксплуатации

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MODEL PIPE SIZE MIN. GPM MAX. GPM*
410 1-1/4”–1-1/2” - 2”
40
(151.4 LPM)
125
(473.2 LPM)
*When flow rates exceed maximum GPM an external auxiliary
bypass valve is required. See external auxiliary bypass valve sec-
tion for details.
FLOW RATES
EXTERNAL AUTOMATIC BYPASS VALVE
An external automatic bypass valve is provided with
the heater. The bypass valve automatically responds
to changes in water flow in the piping system. The
proper amount of water flow is maintained through the
heater under varying system flows dictated by the con-
ditions of the pump and filter.
An auxiliary bypass valve should be used when flow
rates exceed 125 GPM (473.2 LPM). Usually a high-
performance pump larger than two horsepower will
exceed this flow rate. This valve is required to comple-
ment the function of the automatic bypass valve, par-
ticularly when starting the heater in winter or early
spring when the spa or pool temperature is below 50°F
(10ºC). It also serves to eliminate needless pressure
drop through the heater and accompanying reduction
in the flow rate to the spa jets, etc.
EXTERNAL AUXILIARY BYPASS VALVE
(Where Required )
From Heater To Heater
From
Pool/Spa
To
Pool/Spa
AUXILIARY BYPASS VALVE
(DO NOT USE GATE VALVE)
PRESSURE RELIEF VALVE PIPING
The heater is supplied with a pressure relief valve,
sized for the maximum output of the heater, and set at
125 psig. The pressure relief valve outlet must be
plumbed to a safe point of discharge.
Fig. 17: PRV Piping
AUXILIARY BYPASS VALVE ADJUSTMENT
To set bypass: With clean filter, adjustment is made by
feeling the inlet and outlet pipes at the heater. Outlet
pipes should be slightly warmer than inlet and comfort-
able to the touch. If pipe is hot, close bypass; if cold,
open bypass.
NOTE: To avoid water damage or scalding due to
valve operation, drain pipe must be connected to
valve outlet and run to a safe place of discharge.
Drain pipe must be the same size as the valve dis-
charge connection throughout its entire length and
must pitch downward from the valve. No shut-off
valve shall be installed between the relief valve and
the drain line. Valve lever should be tripped at
least once a year to ensure that waterways are
clear.
Fig. 15: External Automatic Bypass Valve
Table 10: Flow Rates
Fig. 16: Auxiliary Bypass Valve