A.O. Smith ProMax Direct-Vent GDV-50 Bedienungsanleitung

ProMax®Direct-Vent Features

DIRECT-VENT DESIGN

One-pipe, dual-channel closed-combustion system draws all make-up air

from outside the home, eliminating problems caused by insufficient indoor

ventilation, and is FVIR compliant

Horizontal air intake and venting on all models up to 80 inches from

outside wall, with no electrical power needed.

A. O. SMITH DYNACLEAN™ DIFFUSER DIP TUBE

Helps reduce lime and sediment buildup, maximizes hot water output.

Made from long-lasting PEX cross-link polymer.

GREEN CHOICE™ GAS BURNER

Patented “eco-friendly” design reduces NOx emissions up to 33% and

complies with Southern California and Texas requirements.

PUSH BUTTON PIEZO IGNITER

Makes lighting pilot fast and easy with one hand push button spark

ignition.

HEAT TRAP NIPPLES Factory installed.

DURABLE TAMPER-RESISTANT BRASS DRAIN VALVE

A. O. SMITH PERMAGLAS®GLASS COATING

Protects steel tank from rust.

FACTORY-INSTALLED TEMPERATURE & PRESSURE (T&P)

RELIEF VALVE

6-YEAR LIMITED TANK & PARTS WARRANTY

For complete information, consult written warranty or A. O. Smith Water

Products Company.

CODE COMPLIANCE: UBC, CEC, SBCC, CABO, HUD, BOCA

NATIONAL CODES, ASHRAE/IES 90.1-1999 AND 2004 NAECA

DESIGN-CERTIFIED BY CSA INTERNATIONAL

According to ANS Z21.10.1 standards governing storage-type water

heaters.

AOSRG45700

Residential Gas Water Heaters

Page 1 of 2

DIRECT-VENT

Revised April 2008

194454_AOSRG45700 4/14/08 10:58 AM Page 1

www.hotwater.com

For Technical Information and Automated Fax Service, call 800-527-1953. A.O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

MODEL

NUMBER

FIRST

HOUR

RATING

GALLONS

ENERGY

FACTOR GAL.

CAP.

BTU

INPUT

PER HOUR

RECOVERY

90ºF RISE

GALLONS

PER HOUR A B C D E F

VENT

OUTLET*

APPROX.

SHIPPING

WEIGHT

(LBS)

GDV-40 73 .62 40 38,000 41 68 54-3/4 22-1/4 16 12-1/4 45-1/4 Co-Axial 167

GDV-50 87 .60 50 42,000 45 76 63-3/4 22-1/4 16 12-1/4 54 Co-Axial 185

GDVT-50 88 .59 50 50,000 55 76 64-3/4 22-1/4 16-1/4 12-1/2 55-1/2 Co-Axial 187

GDV-75 131 .59 75 55,000 60 76 65-3/4 26-1/4 16-1/4 12-1/2 55-1/2 Co-Axial 310

Recovery capacities based on actual performance tests.

* Dual-channel system has 3˝ vent pipe inside 6˝ air intake pipe, for the 40 & 50 gallon models.

The 75 gallon model uses a 4” x 7” co-axial pipe.

All Models Have 2” Foam Cavity.

Water connection 3/4” male all models.

75 gallon water connections are 12” on center.

DIMENSIONS IN INCHES

FRONT

MAX VENT

EXTERIOR

WALL

6 DIA.

MIN VENT

42°

47°

25-1/4

TOP

DRAIN

T&P

Important! Vent Installation and Termination Requirements

nMaximum horizontal vent distance is 80” to outside of exterior wall.

nMinimum horizontal vent distance is 17” to outside of exterior wall.

nVent pipes may be trimmed (cut) for short vent installations.

nFor vent installation less than 30” the vent restrictor is required.

Place restrictor over the flue outlet on heater before installing the outlet vent

pipe to the heater.

nRecommended installation height for the heater vent pipe should be

68” for 40 gallon models and 76” for the 50-gallon and 75-gallon

models (vent height).

nOffset Vent Arrangement

1. When replacing an existing direct vent model,

the new vent pipe may drop from the minimum

vent height as much as 7 1/4” to exit through the

existing vent opening in the exterior wall.

2. Vent may have one horizontal 90 degree turn before

exiting through exterior wall (Do not combine both

offset vent arrangements in one installation) (See

examples in the installation manual)

nHigh Rise Vent Arrangement

3. When vent termination is more than 80” above the

base of the heater. The horizontal vent run must be

a minimum of 22” from the center of the heater to

the outside exterior wall surface. (See example in the

installation manual)

nVent termination clearance hole through the exterior

wall should be approximately 7” diameter.

nSnow accumulation and drifting should be considered

when locating the termination.

nAn optional wire grill vent cap protector is available

through the parts department. Part number 9006627.

nSee the installation manual for complete installation

and venting requirements.

Residential Gas Water Heaters

DIRECT-VENT

AOSRG45700

Page 2 of 2

Revised April 2008

40 & 50 gal.

25-1/4

75 gal.

29-1/2

6” DIA. on 40 & 50 Gal. Models

7” DIA. on 75 Gal. Models

75 gal. vent

termination

cap is not

interchangeable

with vent cap

on 40 & 50 gal.

models

194454_AOSRG45700 4/14/08 10:58 AM Page 2

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