Lochinvar 2072, 502 operation manual Water connections continued, Installation & Operation Manual

Installation & Operation Manual

4 Water connections (continued)

Figure 4-5_Cascaded heaters Within 15 feet of Perpendicular Pool Piping

AUTOMATIC	* POOL	PVC MIN
BYPASS VALVE	RETURN	(SEE TABLE)
	SENSOR
	SECONDARY
	LOCATION	RECOMMENDED
		ISOLATION
		VALVE
		COPPER
		OR CPVC
		(SEE TABLE)	FROM
			POOL

COPPER
OR CPVC
(SEE TABLE)
		110°
		LIMIT
		3'
		MIN
	TO
	POOL
		REQUIRED
		POOL
		RETURN
		SENSOR
MODEL NO	BYPASS PIPE SIZE	LOCATION
CP (N,L) 502-752	2" MIN
CP (N,L) 992-2072	2-1/2" MIN

VALVE	POOL RETURN SENSOR
	PRIMARY LOCATION

*NOTE: IF THE RETURN SYSTEM SENSOR IS LOCATED IN THE SECONDARY LOCATION SHOWN ON THE PIPING DIAGRAM, THE UNIT PUMP MUST RUN CONTINUOUSLY TO ENSURE THE WATER FLOW PAST THE SENSOR IS MAINTAINED.

Figure 4-6_Cascaded Heaters Beyond 15 feet of Pool Piping

* POOL

RETURN

SENSOR SECONDARY LOCATION

3'

MIN

110°

LIMIT

REQUIRED

POOL

RETURN

SENSOR TO

LOCATION POOL

COPPER OR PVC (SEE

TABLE)

MODEL NO	BYPASS PIPE SIZE
CP (N,L) 502-752	2" MIN
CP (N,L) 992-2072	2-1/2" MIN

AUTOMATICFROM

BYPASSPOOL

VALVE

POOL RETURN SENSOR PRIMARY LOCATION

4" PVC

FLOWMETER

3" PVC

RECOMMENDED

ISOLATION

VALVE

*NOTE: IF THE RETURN SYSTEM SENSOR IS LOCATED IN THE SECONDARY LOCATION SHOWN ON THE PIPING DIAGRAM, THE UNIT PUMP MUST RUN CONTINUOUSLY TO ENSURE THE WATER FLOW PAST THE SENSOR IS MAINTAINED.

NOTICE Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.

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