Tempra® Technical Data

Tempra® Model		12		15		20		24		29		36**
Phase		1		1		1		1		1		1
Voltage	V	208	240	208	240	208	240	208	240	208	240	208	240
Wattage	kW	9	12	10.8	14.4	14.4	19.2	18	24	21.6	28.8	27	36
Amperage	A	44	50	52	60	70	80	88	100	105	120	132	150
Min. required circuit breaker size	A	60	60	2x40	2x40	2x50	2x50	2x60	2x60	3x50	3x50	3x60	3x60
Recommended wire size	AWG COPPER	6	6	2 x 8	2 x 8	2 x 8	2 x 8	2 x 6	2 x 6	3 x 8	3 x 8	3 x 6	3 x 6
Maximum temp. increase	@1.50 GPM	41	54	49	65	66	88	82	92	92	92	92	92
above ambient water temp.	@2.25 GPM	27	36	37	43	44	58	54	73	66	87	82	92
	@3.00 GPM	20	27	25	33	33	44	41	54	49	66	61	82
	@4.50 GPM	-	-	-	-	22	29	27	37	33	44	41	55
Min. water flow to activate unit	GPM / Lmin	0.29 / 1.1		0.58 / 2.2		0.58 / 2.2		0.58 / 2.2		0.87 / 3.3		0.87 / 3.3
Weight	Lb / Kg	15 / 6.8		18 / 8.1		21 / 9.5		18 / 8.1		24.25 / 11		24.25 / 11
Nominal water volume	Gal / L	0.13 / 0.5		0.26 / 1.0		0.26 / 1.0		0.26 / 1.0		0.39 / 1.5		0.39 / 1.5
Width	inch / cm	14 9/16 / 37								21 3/4 / 55.2		21 3/4 / 55.2
Height	inch / cm	14 1/2 / 36.7
Depth	inch / cm	4 5/8 / 11.6
Working pressure	PSI / BAR	150 / 10
Tested to pressure	PSI / BAR	300 / 20
Water connections		3 / 4" NPT
* Tempra™ 36 requires a 300A minimum electrical service * Suitable for supply with up to 107° F / 42° C * Tankless water heaters are considered a non-continuous load * Conductors should be sized to maintain a voltage drop of less than 3% under load ** Tempra™ 36 requires a 300A minimum electrical service