Lifebreath 4TONDHW(T), 60DHW(T), 60VENTAC, 60DHWDF(T) Part D - Proving Required Water Flow, Table D

PART D - PROVING REQUIRED WATER FLOW

D.1 Effective Length Calculation
Fitting	#	EL	Total EL
________________	_________ x ________ = ___________
________________	_________ x ________ = ___________
________________	_________ x ________ = ___________
________________	_________ x ________ = ___________
________________	_________ x ________ = ___________
________________	_________ x ________ = ___________
________________	_________ x ________ = ___________
Measured (Actual) Length			___________
Total Effective Length			___________

PUMP:
D.2	Water Flow Rate	________ US GPM
D.3	Max. Head Press. at Water Flow	________ ft of head
	(from specs)
D.4	Pressure Drop of Water Coil	5	ft of head
D.5	Available Head Press.	________ ft of head
	(D.3 - D.4)
D.6	Total Effective Length	________ eff. ft
	(from D.1)
D.7	Head Loss /100 ft	________ per 100 ft
	(D.5 x 100 ⎟ D.6)
D.8	Pipe Diameter	________ in.
	(Table D 2)

TABLE D 1	EQUIVALENT LENGTHS FOR COPPER PIPE FITTINGS (straight pipe in feet)
FITTING		EQUIVALENT	FITTING	EQUIVALENT
		LENGTH		LENGTH
Gate / Ball Valve (open)		1	long sweep 90o elbow	2￿
Globe Valve (open)		23	45o elbow	1￿
Angle Valve (open)		12	180o close return	6￿
Check Valve (open)		6	standard tee (straight through)	2
Balance Valve		18	standard tee (90o turn)	5￿
Standard Elbow		3	contraction or enlargement	2	￿

TABLE D 2	HEAD LOSS PER 100 FEET OF EQUIVALENT LENGTH
	1/2" inside diameter	5/8" inside diameter	3/4" inside diameter	1" inside diameter
FLOW	HEAD LOSS	HEAD LOSS	HEAD LOSS	HEAD LOSS
(US GPM)	(FT./100FT)	(FT./100FT)	(FT./100FT)	(FT./100FT.)
1	3	2	1	*
1.5	6	4	1	*
2	9	7	2	*
2.5	14	9	3	*	￿
3	19	13	4	1	￿
3.5	25	17	5	1	￿
4	32	22	6	1	￿
4.5	39	27	7	2	￿
5	*	33	9	2
6	*	45	12	3	￿
7	*	*	16	4	￿
8	*	*	21	5	￿
9	*	*	26	6	￿
10	*	*	31	8

39