Raypak P926, P1826, P2100, P4001 Temperaturecontrols Highlimits, Pool Stat, LOW Water CUT-OFF

EXTERNAL AUXILIARY BYPASS VALVE (Where Required) 926-1223 Models only

An auxiliary bypass valve should be used when flow rates exceed 120 GPM (usually a high performance pump size larger than two HP will exceed this flow rate). This valve is required to complement the function of the automatic bypass valve, particularly when starting the heater in winter or early spring when the spa or pool temperature is below 55°F. It also serves to eliminate needlesspressuredropthroughtheheaterandaccompa- nying reduction in the flow rate to the spa jets, etc.

BYPASSVALVE

INLET/OUTLET

HEADER

Fig. #8223.0

OPEN POSITION CLOSED POSITION MANUAL BYPASS ADJUSTMENT

FROMTO

HEATERHEATER

TO POOL	TO POOL
	Fig. #8150

AUXILIARY BYPASS VALVE (DO NOT USE GATE VALVE)

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: Do not use a gate valve as an auxiliary bypass valve on any heaters.

Models 926-1223

The heater is also equipped with a manual bypass built into the header. This is in addition to the automatic bypass valve. This may be used with flow rates up to 120 GPM and adjusted as below.

NOTE: Sooting or liming caused by improper bypass adjustment voids the warranty.

Fig. #8222.0

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 discharge 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.

TEMPERATURECONTROLS

HIGHLIMITS

The pool heater is equipped with two high limits. Both high limits, the non-adjustable auto reset high limit and adjustable manual reset high limit are attached to the outlet side of the in/out header.

POOL STAT

The pool heater is equipped with a pool thermostat that is attached to the inlet side of the in/out header to control the pool temperature.

LOW WATER CUT-OFF

Automatically shuts down burner whenever water level drops below probe. 30 second time delay prevents premature lockout due to temporary conditions such as power failure or air pockets. Standard on Cal Code heaters.

Fig. #6043

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