A.O. Smith GPDL 40, GPDT 50, GPDX 50L, GPDX 75L User Manual

COMMERCIAL-GRADE

RESIDENTIAL GAS WATER HEATERS

PROLINE® XE POWER DIRECT VENT

COMMERCIAL-GRADE RESIDENTIAL

The ProLine® XE Power Direct Vent water heaters have been engineered
to maximize efficiency and deliver a greater Uniform Energy Factor (UEF).

POWER DIRECT VENT DESIGN

• Combined horizontal and vertical vent
runs up to 180 equivalent feet with 4”
diameter venting (ABS, PVC, CPVC and
polypropylene)

• Two-pipe sealed combustion system uses
outside air, eliminating problems caused
by insufficient indoor ventilation

• Reduced NOx emissions comply with air
quality management district regulations

ENERGY STAR® QUALIFIED

• All models (except GPDX 75L) meet the
ENERGY STAR® requirement and may
also qualify for local utility and rebate
programs

• “Environmentally-Friendly” foam
insulation reduces the amount of heat
loss and contributes to overall energy
efficiency

• Built-in heat traps on the water inlet and
outlet reduce the amount of heat lost
through piping

DYNACLEAN™ DIFFUSER DIP TUBE

• Helps reduce lime and sediment buildup
and maximizes hot water output. Made
from long-lasting PEX cross-linked
polymer.

HOT-SURFACE IGNITOR

• More robust and reliable than standing
pilot, and reduces energy consumption.

BLUE DIAMOND® GLASS COATING

• Provides superior corrosion resistance
compared to the industry-standard
glasslining.

USER-FRIENDLY

• State-of-the-art electronic gas control
provides more precise temperature
control

• LED control light displays operation
status and diagnostics information

ENHANCED-FLOW BRASS DRAIN
VALVE

• Our residential water heaters have a
solid brass, tamper resistant, enhanced­flow, ball type, drain valve.

• Uses a standard female hose fitting that
allows for fast and easy draining during
maintenance.

• Designed for easy operation, this valve
includes an integral screwdriver slot that
features a ¼ turn (open/close) radius,
which not only permits full straight­through water flow but also a quick and
positive shut off.

CSA CERTIFIED AND ASME RATED T&P
RELIEF VALVE

DESIGN-CERTIFIED BY CSA
INTERNATIONAL

• Certified at 150 psi working pressure.

• Certified to ANSI Z21.10.1-CSA 4.1
or ANSI Z21.10.3-CSA 4.3 standards
governing storage tank-type water
heaters

AVAILABLE IN NATURAL GAS AND
PROPANE

6-YEAR LIMITED TANK AND PARTS
WARRANTY

(EXCEPT GPDX 75L)

© June 2017 A. O. Smith Corporation. All rights reserved.

www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

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AOSRG45900

COMMERCIAL-GRADE

RESIDENTIAL GAS WATER HEATERS

Model

Number

GPDL 40 200 40 38 74 0.68 40,000 45 58-1/4 49-5/8 22 29-7/8 11 13-1/4 42-1/2 15-1/4 174

GPDT 50 200 50 48 81 0.72 45,000 50 67-1/2 58-3/4 22 29-7/8 11 13-1/4 51-3/4 15-1/4 192

GPDX 50L 200 50 48 118 0.73 62,000** 73 69 60-1/4 22 29-7/8 11 13-1/4 52-3/4 15-1/4 200

† GPDX 75L 210 75 72 129 0.68 76,000 82 70-5/8 61-1/2 26 33-7/8 11 13-1/4 53 15-1/4 277

**Propane (LP) model has input of 58,000 BTU/hr.
For side connect models, add ‘L’ to model number, e.g. GPDT 50L. Side connections available on GPDL and GPDT models.
Side connections are standard on GPDX models.
Natural gas models cited are series 200/210. Propane models are series 201/211
All models rated for installation at altitudes up to 10,100 ft.
† GPDX 75L is not ENERGY STAR® Qualified.

Model Number

GPDL 40 50’ 125’ 180’

GPDT50 50’ 125’ 180’

GPDX 50L N/A 50’ 125’

GPDX 75L N/A 50’ 125’

Nominal

Series

Capacity

Maximum Vent Length Eq. Ft.

Ø2” Ø3” Ø4”

Rated
Storage
Volume

Vent Length

First

Hour

Rating

(Gallons)

UEF

Input

Per Hour

BTU

Recovery

@ 90°F

Rise Gallon

Per Hour

A B C D E F

Dimensions in Inches

D

G H

Approx.

Shipping

Weight (lb)

Optional Vent Kits

Description Part Number

2” Vent Kit- Coupling, sound
suppressor

3” Vent Kit- Coupling, sound
suppressor

2” Concentric Vent Kit 100112869

3” Concentric Vent Kit 100111100

Hi Ambient Kit 100191116

100153232

100153234

F

C

G

H

E

A

B

For technical information call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

www.hotwater.com | 800-527-1953 Toll-Free USA

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AOSRG45900