A.O. Smith DEL-6, DEL-10, DEL-15, DEL-20 User Manual

Commercial Electric

Water Heaters

DURA-POWER™

Designed for use as a recovery heater having its own storage tank. Available in upright standard models (DEN) and lowboy models (DEL).

	GLASSLINED TANK	CSA CERTIFIED AND ASME RATED
	• Thirteen sizes; 6 thru 119 gallon	T&P RELIEF VALVE
	capacity. Tank interior is coated with	SIMPLIFIED CIRCUITRY, COLOR
	glass specially designed by A. O. Smith	CODED FOR EASE OF SERVICE
	for water heater use.	ANODE ROD FOR MAXIMUM
	ELEMENTS
		CORROSION PROTECTION
	• Zinc plated copper sheaths for longer	CABINET HAS BONDERIZED
	life. Medium watt density means lower
		UNDERCOAT WITH BAKED
	surface temperature to minimize scale
		ENAMEL FINISH
	build-up and more surface to heat
		TOP INLET AND OUTLET OPENINGS
	water. Element sizes from 1.5 to 6 KW.
	Maximum input 12 KW (see chart).	DRAIN VALVE
	STANDARD VOLTAGES	(EXCLUDES DEL 6-20)
	• 120, 277 single phase and 208, 240	UL APPROVED FIELD CONVERSION
	and 480V unbalanced three-phase	PROGRAM
	delta; easily converted to single-phase at	COMPLIANCE
	terminal block (except 208V with 5500
	watt elements). Single element heaters,	• Meets the standby loss Requirements
	single-phase only.	of the U.S. Department of Energy and
	TERMINAL BLOCK	current edition of ASHRAE/IES 90.1.
		LIMITED WARRANTY OUTLINE
	• Factory-installed. Just bring the service
			DEN-40
	to heater and connect to block. Terminal	• If the tank should leak any time during
	block not supplied on 120V & 277 volt	the first three years, under the terms of	DEL-30
	models. (No junction box on DEL6-20)	the warranty, A. O. Smith will furnish a
	CONTROLS	replacement heater; installation, labor,
		handling and local delivery extra. THIS
	• Temperature control (adjustable	OUTLINE IS NOT A WARRANTY. For
	through a range of 130° to 170°F on	complete information consult the written
	single element and 120° to 181°F on	warranty or A. O. Smith Water Products
	dual element) and manual reset high	Company.
	temperature cutoff per element

© March 2019 A. O. Smith Corporation. All rights reserved.	Page 1 of 4
www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015	AOSCE15400

Commercial Electric

Water Heaters

ALTERNATE OUTLET

OUTLET

3/4” (FEMALE) NPT

3/4” (FEMALE)

HOT WATER OUTLET DEL-6

NPT

3/4” NPT

RELIEF VALVE

OPENING

ELECTRICAL

“B”

“C”

“A”

CONNECTION

INLET

TOP VIEW

3/4” (FEMALE)

DEL 6/10/15/20

NPT

FRONT VIEW

ROUGH-IN DIMENSIONS

DEL 6/10/15/20

*(NO SIDE OUTLET AVAILABLE FOR DEL-6 MODELS)

Model Number

No. of

Tank Capacity

A

B

C

D

Shipping Weight

Elements

US Gals

Litres

Inches

mm

Inches

mm

Inches

mm

Inches

mm

lbs.

Kg.

DEL-6

1

6

23

15-1/2

394

14-1/4

362

11

279

N/A

N/A

35

15.9

DEL-10

1

10

38

18-1/4

464

18

457

12-1/2

318

N/A

N/A

54

24.5

DEL-15

1

15

57

26

660

18

457

20-1/2

521

N/A

N/A

58

26.3

DEL-20

1

20

76

22-1/4

565

21-3/4

552

15-3/8

391

N/A

N/A

73

33.1

* No side outlet available on DEL-6 Model

		OUTLET																		INLET				OUTLET																INLET
		3/4” (FEMALE)																3/4” (FEMALE)						3/4” (FEMALE)															3/4” (FEMALE)
		NPT									“D”									NPT				NPT									“D”								NPT
		2 1/2”																																					3/4” NPT
																																							RELIEF VALVE
		(63.5 mm)																																					OPENING
		JUNCTION						TOP VIEW																	JUNCTION						TOP VIEW								2 1/2”
			BOX					DEL 30/40/50																		BOX				DEN 30 - 120								(63.5 mm)
										“B”																						“B”
										3/4” NPT
								RELIEF VALVE
										OPENING																													“A”
										BRASS								“C” “A”								DRAIN
										DRAIN																VALVE
										VALVE
		3 3/4” (95.25 mm)																						3 3/4” (95.25 mm)
							FRONT VIEW																						FRONT VIEW
							DEL 30/40/50																							DEN 30-120
ROUGH-IN DIMENSIONS
Model	No. of	Tank Capacity													A							B							C											D			Shipping Weight
Number	Elements	US Gals		Litres						Inches								mm				Inches		mm		Inches						mm						Inches				mm	lbs.	Kg.
DEL-30	2	30		114				30-7/8										784				21-3/4		552		24-1/8				613								8				203	100	45.4
DEL-40	2	40		151				32-1/4										819				24		610		25-9/16				649								8				203	125	56.7
DEL-50	2	50		189				32-1/4										819				26-1/2		673		25-1/8				638								8				203	166	75.3
DEN-30	2	30		114				34-1/2										876				20-1/2		521		21				533								8				203	98	44.5
DEN-40	2	40		151				45-1/8										1146				20-1/2		521		N/A						N/A						8				203	113	51.3
DEN-52	2	50		189				54-7/8										1394				20-1/2		521		N/A						N/A						8				203	131	59.4
DEN-66	2	66		250				60-3/4										1543				21-3/4		552		N/A						N/A						8				203	176	79.8
DEN-80	2	80		303				59-3/8										1508				24		610		N/A						N/A						8				203	211	95.7
DEN-120	2	119		450				62-7/16										1586				29-3/8		746		N/A						N/A						8				203	326	147.9

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AOSCE15400