Bradford White Powered Direct Vent Series User manual

238-42047-00F REV 10/04
POWERED DIRECT VENT SERIES GAS-FIRED
WATER HEATER
A Spanish language version of these instructions is available by contacting
the company listed on the rating plate.
La version espanola de estas instrucciones se puede obtener al escribile
a la fabrica cuyo nombre aparece en la placa de especificaciones.
WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appliance.
•Do not touch any electrical switch; do not use any
phone in your building.
•Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier's instructions.
•If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
For your family’s comfort, safety and convenience we
recommend Bradford White water heaters to be installed and
serviced by a plumbing professional.
PDX INSTALLATION AND OPERATING
INSTRUCTION MANUAL
FOR YOUR SAFETY
Do not store or use gasoline or other flammable,
combustible, or corrosive vapors and liquids in the
vicinity of this or any other appliance.
WARNING: If the information in these instructions is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or death.
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CONGRATULATIONS!
You have just purchased one of the finest water heaters
on the market today!
This installation, operation and instruction manual will
explain in detail the installation and maintenance of your
new Powered Direct Vent Series Gas-Fired Residential
Water Heater. We at Bradford White strongly recommend
that you contact a plumbing professional for the
installation of this water heater.
We require that you carefully read this manual, as well as
the enclosed warranty, and refer to it when questions
arise. If you have any specific questions concerning your
warranty, please consult the plumbing professional from
whom your water heater was purchased. For your
records we recommend that you write the model, serial
number and installation date of your water heater in the
maintenance section in the back of this manual.
This manual should be kept with the water heater.
At Bradford White we’re committed to providing you with
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TABLE OF CONTENTS page
GENERAL INFORMATION............................................................ 4
INSTALLATION. ............................................................................. 5
Locating The Water Heater.................................................... 5
Minimum Clearances............................................................... 8
Venting...................................................................................... 8
Water Connections.................................................................. 22
Gas Connections..................................................................... 25
Electrical Connections ........................................................... 26
Wiring Diagram .................................................................. 27
GENERAL OPERATION................................................................ 28
Lighting and Shutdown Instructions..................................... 29
Thermostat Adjustment .......................................................... 30
Burner Flame Check............................................................... 31
MAINTENANCE.............................................................................. 32
PARTS LIST AND DRAWING........................................................ 35
BLOWER PARTS LIST AND DRAWING....................................... 36
INSTALLATION INSTRUCTIONS FOR POTABLE WATER AND
SPACE HEATING........................................................................... 37
VENT PIPE PREPARATION AND JOINING................................. 38
NOTES............................................................................................ 40
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GENERAL INFORMATION
This gas-fired water heater’s design is certified by CSA International under the
American National Standard Z21.10.1 -(as indicated on the rating plate) and
CSA 4.1-M-(as indicated on the rating plate).
This water heater must be installed in accordance with local codes or, in the
absence of local codes, the National Fuel Gas Code, ANSI Z223.1-Latest
Edition) and/or in Canada CAN/CGA B149 Installation Codes (Latest Editions).
The warranty for this water heater is in effect only when the water heater is
installed, adjusted, and operated in accordance with these Installation and
Operating Instructions. The manufacturer will not be held liable for any damage
resulting from alteration and/or failure to comply with these instructions.
This water heater is not design certified for installation in a mobile home. Such an
installation may create a hazardous condition and will nullify the warranty.
Do not use this appliance if any part has been submerged in water. You should
contact a qualified service technician to inspect the appliance and to replace any
part of the control system including the combination gas control, which has been
submerged in water.
Make sure that you check the rating plate and combination gas control on the
water heater to be certain that the type of gas being supplied corresponds with
the marking on the rating plate and combination gas control.
CAUTION
Incorrect operation of this appliance may create a hazard to life and
property and will nullify the warranty.
DANGER
Do not store or use gasoline or other flammable, combustible, or
corrosive vapors and liquids in the vicinity of this or any other
appliance.
IMPORTANT
Before proceeding, please inspect the water heater and its components for
possible damage. DO NOT install any damaged components. If damage is
evident then please contact the supplier where the water heater was
purchased or the manufacturer listed on the rating plate for replacement parts.
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General Information continued-
A sacrificial anode is used to extend tank life. The removal of this anode, for any
reason, will nullify the warranty. In areas where water is unusually active, an odor
may occur at the hot water faucet due to a reaction between the sacrificial anode
and the impurities in the water. If this should happen, an alternative anode may
be purchased from the supplier that installed this water heater. This will minimize
the odor while protecting the tank. Additionally, the water heater should be
flushed with appropriate dissolvers to eliminate any bacteria.
INSTALLATION
Locating The Water Heater
DO NOT install the water heater in any location where gasoline or
flammable vapors are likely to be present.
The location of this water heater is of the utmost importance. Before installing
this water heater, read the installation section of these instructions. After reading
these installation and operating instructions, select a location for the water heater
where the floor is level and is easily accessible to gas and water supply lines. DO
NOT locate the water heater where water lines could be subjected to
freezing temperatures. Make sure the cold water pipes are not located
directly above the gas control so that condensate during humid weather
does not drip on the controls.
WARNING
Water heaters are heat-producing appliances. To avoid damage or injury, do not
store materials against the water heater or vent-air intake system. Use proper
care to avoid unnecessary contact (especially by children) with the water heater
and vent-air intake components. UNDER NO CIRCUMSTANCES MUST
FLAMMABLE MATERIALS, SUCH AS GASOLINE OR PAINT THINNER BE
USED OR STORED IN THE VICINITY OF THIS WATER HEATER, VENT-AIR
INTAKE SYSTEM OR IN ANY LOCATION FROM WHICH FUMES COULD
REACH THE WATER HEATER OR VENT-AIR INTAKE SYSTEM.
CAUTION
The National Fuel Gas Code (ANSI Z233.1-or latest edition) and
CAN/CGA (B149.1-or latest edition), expressly prohibits the installation
of a water heater in a garage, unless the unit is installed so that the
burner and ignition devices are at least eighteen (18) inches (46 cm)
above floor level and protected to avoid damage by a moving vehicle.
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Installation (Locating The Water Heater) continued-
Water heater corrosion and component failure can be caused by the heating and
breakdown of airborne chemical vapors. Examples of some typical compounds
that are potentially corrosive are: spray can propellants, cleaning solvents,
refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium
and sodium chloride, waxes and process chemicals. These materials are
corrosive at very low concentration levels with little or no odor to reveal their
presence. NOTE: DAMAGE TO THE WATER HEATER CAUSED BY EXPOSURE
TO CORROSIVE VAPORS IS NOT COVERED BY THE WARRANTY. DO NOT
OPERATE THE WATER HEATER IF EXPOSURE HAS OR WILL OCCUR. DO
NOT STORE ANY POTENTIALLY CORROSIVE COMPOUNDS IN THE
VICINITY OF THE WATER HEATER.
WARNING
Liquefied petroleum gases/propane gases are heavier than air
and will remain at floor level if there is a leak. Basements, crawl
spaces, closets and areas below ground level will serve as
pockets for accumulation of leaking gas. Before lighting, smell
all around the appliance area for gas. Be sure to smell next to
the floor.
IF YOU SMELL GAS:
•Do not try to light any appliance.
•Do not touch any electric switch; do not use any telephone in
your building.
•Immediately call your gas supplier from a neighbor’s
telephone. Follow the gas supplier’s instructions.
•If you cannot reach your gas supplier, call the fire
department.
DO NOT OPERATE APPLIANCE UNTIL THE LEAKAGE IS
CORRECTED!
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Installation (Locating The Water Heater) continued-
The water heater must be located close enough to the outside wall to keep the
venting distance within the maximum distance described in the installation
instructions. Read the venting section in this installation instruction manual
before locating the water heater.
This water heater must be located in an area where leakage of the tank or water
line connections and the combination temperature and pressure relief valve will
not result in damage to the area adjacent to the water heater or to lower floors of
the structure. When such locations cannot be avoided, a suitable drain pan
adequately piped for proper drainage, must be installed under the water heater.
The drain pan must be no greater than 1-½ inches (3.8 cm) deep and have a
minimum length and width of at least four (4) inches (10.2 cm) measured from the
jacket of the water heater. The drain pan, as described above, can be purchased
from your plumbing professional. The drain pan must be piped to an adequate
drain. The piping must be at least 3/4 inch (1.9 cm) in diameter and pitched for
proper drainage.
It is recommended that a minimum clearance of four (4) inches (10.2 cm) be
provided on the side of the water heater for servicing and maintenance of the
combination temperature and pressure relief valve.
WARNING
DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE NOT
CERTAIN OF THE FOLLOWING:
•Liquefied petroleum gases/propane gas and natural gas have an
odorant added by the gas supplier that aids in the detection of the
gas.
•Most people recognize this odor as a “sulfur” or “rotten egg” smell.
•Other conditions, such as “odorant fade” can cause the odorant to
diminish in intensity, or ”fade”, and not be as readily detectable.
•If you have a diminished sense of smell, or are in any way unsure of
the presence of gas, immediately contact your gas supplier from a
neighbor’s telephone.
•Gas detectors are available. Contact your gas supplier, or plumbing
professional, for more information.
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Installation (Minimum Clearances) continued-
Minimum Clearances
This installation must allow access to the front of the water heater and adequate
clearance must be provided for servicing and operating this water heater. The
water heater may be installed on either a combustible or non-combustible floor. If
the water heater is to be installed directly on carpeting, it must be installed on
top of a metal or wood panel extending beyond the full width and depth of the
appliance by at least three (3) inches (7.6 cm) in any direction or, if the appliance
is to be installed in an alcove or closet, the entire floor must be covered by the
panel. The minimum clearances to combustibles for this water heater is: zero (0)
inches (0 cm) from the sides and rear, five (5) inches (12.7 cm) from the front of
the jacket, zero (0) inches (0 cm) from the vent connector and fifteen (15) inches
(38.1 cm) from the jacket top.
Venting
The National Fuel Gas Code ANSI Z223.1-(Latest Edition), CGA/CAN B149
Installation Code, and local codes have specific requirements for the location of
the vent terminals on vertical walls. The guidelines listed below are from the
National Fuel Gas Code. Consult the local codes, and/or National Fuel Gas
Code ANSI Z223.1-(Latest Edition), or CGA/CAN B149 Installation Code to
determine if there are any additions or changes to the following specifications.
(A) The vent terminals must terminate at least 3 feet (.91 m) above any forced
air inlet duct located within 10 feet (3 m). Exception: This provision shall
not apply to the combustion air intake of a direct vent appliance.
(B) The vent terminals must terminate at least 12 inches (.31 m) below, 12
inches (.31 m) horizontally from, or 12 inches (.31 m) above any door,
window, or any gravity air inlet into the building.
(C) The bottom of the vent terminal and the air intake shall be located at least
12 inches (.31 m) above grade.
Note: Must be installed in a location where it will not be blocked by
snow.
(D) The vent terminals must not terminate over a public walkway or over an
area where condensate or vapor could create a nuisance or hazard or
could be detrimental to the operation of regulators, relief valve, or other
equipment.
(E) The water heater location must provide easy access for the entire length
of the vent connector.
WARNING
Failure to adhere to these installation and operating instructions may
create a hazard to life and property and will nullify the warranty.
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Venting continued-
(F) The vent system must be inspected at least once a year to ensure
against leakage of exhaust products.
Exceptions For Installations in Canada:
(A) The vent terminals must be located at least 1 foot (.31 m) from any
window or door, which can be opened in any building, any non-mechanical
air supply inlet to any building, or the combustion air inlet to any other
appliance.
(B) The vent terminals must be located at least 6 feet (1.8 m) from any
mechanical air supply inlet to the building.
(C) The vent terminals must not terminate above a meter/regulator assembly
or within 3 feet (.91 m) horizontally of the vertical centerline of the
regulator and must be at least 6 feet (1.8 m) from any gas service
regulator vent outlet.
(D) The vent terminals must be at least 7 feet (2.1 m) above a paved sidewalk
or a paved driveway located on public property.
(E) The vent terminals must not terminate above a paved sidewalk or a paved
driveway, which is located on adjacent private property.
(F) Underneath a verandah, porch or deck, unless:
(1.) The verandah, porch or deck is fully open on a minimum of two
sides beneath the floor, and
(2.) The distance between the top of the vent-air intake terminal and the
underside of the verandah, porch or deck is greater than 1 ft (30.5
cm).
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Venting continued-
Venting Installation Instructions For Supplied Intake Venting:
1. Refer to Figure 1, “Vent Assembly Illustration” to install intake venting
as described below.
2. Insert one end of the Vertical Pipe into Metal Boot on the lower
backside of the water heater.
3. Slide the Support Bracket over the Vertical Pipe, but do not fasten to
the Jacket Head.
4. Position the Intake Tee on top of the Vertical Pipe so that the short
straight section of the tee faces the Blower Intake Collar, and the
curve of the tee faces upward. Proper orientation of the curved
section of the tee is critical. Be sure it is facing upward. Refer
to “This End Up” label on Intake Tee.
5. Slide the Rubber Intake Elbow over the Blower Intake Collar and over
the short straight section of the Intake Tee.
6. Using a level to ensure that the Vertical Pipe is straight up and down,
secure the Vertical Pipe to the Jacket Head using the Support
Bracket and three (3) self-drilling screws provided. NOTE: Correct
vertical positioning of the Vertical Pipe is Important.
7. After securing the Vertical Pipe to the Jacket Head with the Support
Bracket, tighten the clamps on the Rubber Intake Elbow.
8. Using the RTV sealant provided, place a bead of RTV around the
Vertical Pipe at the Metal Boot location, and at the Intake Tee
location. Smooth out the RTV to provide a seal at both locations.
9. Two 90° end terminal elbows are supplied. These must be installed at
the extreme ends of the intake and exhaust venting outside the
building. The end terminal with the external screen must be installed
on the intake vent as shown in Figure 7.
10. Proceed as necessary to complete the venting installation as
described in the venting section of this manual.
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Venting continued-
Figure 1
Vent Assembly Illustration
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Venting continued-
Venting System Condensation
Condensate formation does not occur in all installations of power vented heaters,
but should be protected against on installations where condensation can form in
the venting system.
Formation of condensation in the venting system of Power Vented water heaters
is dependent upon installation conditions including, but not limited to:
ambient temperature and humidity of installation location;
ambient temperature and humidity of venting space;
vent distance and slope;
and product usage.
In order to effectively control condensate from adversely affecting the mechanical
components of the water heater several methods may be employed:
1. For horizontal installations the vent pipe can be installed with a
downward slope (not less than 1/8" nor greater than ½” per foot
maximum) and away from the blower motor.
2. In order to prevent condensate from draining back into the blower (vertical
or horizontal runs), a fitting and drain hose is available as a condensate
trap kit (see Table 1 for service part numbers). The all rubber fitting with
drain outlet mounts directly to the blower motor outlet and is secured
with two hose clamps (one to the blower motor outlet and the other to the
vent connector). The plastic tubing is provided to drain any accumulated
condensate away from the water heater and to a suitable drain. The kit
comes complete with instructions for proper installation of the fitting.
Table 1
Model Service Part
2” (5.1 cm) Blower Outlet (exhaust) 239-42742-00
3” (7.6 cm) Blower Outlet (exhaust) 239-42743-00
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Venting continued-
3. In order to prevent condensate from draining back into the blower (vertical
or horizontal runs), a drain tee and condensate trap can be installed in
the horizontal vent as close as practical to the blower vent connection
(see Figure 2). The condensate disposal tube should be installed to
drain any accumulated condensate away from the water heater and to a
suitable drain. The drain tee and condensate hose are not available from
Bradford White, but should be available through your local distributor.
Figure 2
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Venting continued-
This water heater is a power direct vented appliance and is designed to intake
and exhaust its products of combustion through 3” (7.6 cm) or 4” (10.2 cm)
diameter Schedule 40 PVC pipe to the outdoors. This water heater may intake
and exhaust either through the wall or vertically through the roof. Use a 3” (7.6
cm) to 4” (10.2 cm) reducer to connect to the intake and outlet when using 4”
(10.2 cm) PVC. Table 2 lists the maximum intake and exhaust lengths for this
water heater using 3” (7.6 cm) PVC. If possible, locate the water heater so that
the venting length and number of elbows are kept to the minimum distance
necessary to reach the outside. If the installation requires venting lengths that
exceed the lengths listed for 3” (7.6 cm) PVC in Table 2, then use 4” (10.2 cm)
PVC for the vent connector. Table 3 lists the venting distances allowed with 4”
(10.2 cm) diameter PVC pipe. When venting with 4” (10.2 cm) PVC, use a 4”
(10.2 cm) to 3” (7.6 cm) reducer to exit through the building wall with 3” (7.6 cm)
PVC. Use the 3” (7.6 cm) vent terminal supplied with the water heater to
terminate on the outside of the building. If the length of the 3” (7.6 cm) PVC
needed to go through the wall is greater than 14” (35.5 cm), use 4” (10.2 cm)
PVC to go through the wall and reduce to 3” (7.6 cm) PVC immediately after
exiting the outside wall. Refer to the venting illustrations on the following pages.
Make sure the vent pipe terminal elbow fittings are at least 1” (2.5 cm) away from
the edge of the wall.
To calculate total equivalent feet
Add up the total number of 90° elbows on the intake and the exhaust, and
multiply by 5 feet (1.5 m) (each 90° elbow is equivalent to 5 feet (1.5 m) of
straight pipe). To this number add the total number of feet of straight pipe on the
intake and the exhaust. This sum (total of all 90° elbows at 5 feet (1.5 m) each,
plus total number of feet of straight pipe) must not exceed 80 feet
(24.4 m). All elbows must be included in the calculation except those on the
extreme ends of the intake and exhaust. 45° elbows may also be used. When
using 45° elbows, take the total number of 45° elbows on the intake and exhaust
and multiply by 2 1/2 feet (.76 m) (each 45° elbow is equivalent to 2 1/2 feet (.76
m) of straight pipe).
Total equivalent feet=
(# of 90° elbows x 5) + (# of 45° elbows x 2 1/2) + (total feet of straight pipe)
Total equivalent meters=
(# of 90° elbows x 1.5) + (# of 45° elbows x .76) + (total meters of straight pipe)
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Venting continued-
EXAMPLE: The exhaust has two 90° elbows and the intake has four 90° elbows.
The total feet of straight pipe on the exhaust is 15 ft. (4.6 m) and the total feet of
straight pipe on the intake is 20 ft (6.1 m).
Figure 3
six 90° elbows x 5 ft. each = 30 ft
Total straight pipe = 11 ft+3 ft+1 ft+3 ft+9 ft+6 ft+2 ft= 35 ft
Total equivalent feet = 65 ft
Total six 90° elbows x 1.5 m each = 9.0m
straight pipe=3.4m+.91m+.31m+.91m+2.7m+1.8m+.61m = 10.6m
Total equivalent meters = 19.6m
IMPORTANT
For 3” (7.6 cm) vent piping, the total equivalent feet of venting (intake
plus exhaust) must not exceed 80 feet (24.4 m) and the total equivalent
feet of venting (intake or exhaust) must not exceed 40 feet (12.2 m). The
total equivalent feet of intake must be within 20 feet (6.1 m) of the total
equivalent feet of exhaust. See Table 2 for common 3” (7.6 cm)vent
lengths.
For 4” (10.2 cm) vent piping, the total equivalent feet of venting (intake
plus exhaust) must not exceed 150 feet (45.7 m) and the total equivalent
feet of venting (intake or exhaust) must not exceed 75 feet (22.9 m).The
total equivalent feet of intake must be within 20 feet (6.1 m) of the total
equivalent feet of exhaust. See Table 3 for common 4” (10.1 cm)vent
lengths.
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Venting continued-
TABLE 2 -VENT CONNECTOR LENGTHS
FOR 3” (7.6 cm) DIAMETER PVC
Total # of 90° elbows
(Intake + Exhaust) Maximum # of feet of straight pipe (Intake + Exhaust)
270 (21.3 m)
365 (19.8 m)
460 (18.3 m)
555 (16.8 m)
650 (15.2 m)
745 (13.7 m)
840 (12.2 m)
TABLE 3 -VENT CONNECTOR LENGTHS
FOR 4” (10.1 cm) DIAMETER PVC
Total # of 90° elbows
(Intake + Exhaust) Maximum # of feet of straight pipe (Intake + Exhaust)
2140 (42.7 m)
3135 (41.1 m)
4130 (39.6 m)
5125 (38.1 m)
6120 (36.6 m)
7115 (35.1 m)
8110 (33.5 m)
NOTE: When using 4” (10.1 cm) PVC, use a 4” (10.1 cm) to 3” (7.6 cm) reducer on
the intake of the “Tee” as shown in Figure 4. When exiting the building wall, use
another 4” (10.1 cm) to 3” (7.6 cm) reducer, and exit the wall with 3” (7.6 cm) PVC.
If the length of 3” (7.6 cm) PVC needed to go the through wall is greater then 14”
(35.5 cm), use 4” (10.1 cm) PVC to go through the wall and reduce to 3” (7.6 cm)
PVC immediately after exiting the outside wall. Terminate the venting with the 3”
(7.6 cm) vent terminals supplied, as shown in Figure 7.
Figure 4
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Venting continued-
NOTE: ABS or CPVC pipes may be substituted for PVC pipe. Do not mix
ABS and PVC pipe in the same installation.
THROUGH THE WALL VENTING:
Cut a 3 1/2 in. (8.9 cm) diameter hole in the wall at the point where the vent
connector is going to pass through the wall. Use the proper cement to secure
the 90° vent terminal provided with the water heater to the vent connector. The
distance between the edge of the 90° vent terminal and the exterior wall (see
Figure 5) must be at least 1 in. (2.5 cm). The exhaust and intake terminals must
not be less than 16 in. (40.6 cm) apart (see Figure 7). The exhaust terminal
must not be mounted below the intake terminal. Use the proper cement and
assembly procedures to secure the vent connector joints between the terminal
and the blower outlet. Provide support brackets for every 3 feet (.91 m) of
horizontal vent.
Figure 5
IMPORTANT
All of the Venting connections must be leak checked with a soap and
water solution upon initial start up of the water heater. Any leaks must
be repaired before continuing operation of the water heater.
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Venting continued-
THROUGH THE WALL VENTING WITH LOW GROUND CLEARANCE:
When venting cannot exit through the wall at a height greater than or equal to 12”
(30.5 cm) above the ground or anticipated snow level, the installation must be
modified as shown below (see Figure 6). Refer to Table 4 for maximum venting
lengths using 3” (7.6 cm) PVC or Table 5 for maximum lengths using 4” (10.1 cm)
PVC.
Figure 6
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Venting continued-
TABLE 4
3” (7.6 cm) PVC VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR
LOW GROUND CLEARANCE INSTALLATIONS
Terminating # of Elbows
(intake + exhaust) Maximum # of Feet of Straight
Pipe
(intake + exhaust)
(2) 90°Elbows with (1) 90°
Elbow 250 ft (15.2 m)
(2) 90°Elbows with (1) 90°
Elbow 345 ft (13.7 m)
(2) 90°Elbows with (1) 90°
Elbow 440 ft (12.2 m)
(2) 90°Elbows with (1) 90°
Elbow 535 ft (10.7 m)
(2) 90°Elbows with (1) 90°
Elbow 630 ft (9.1 m)
(2) 90°Elbows with (1) 90°
Elbow 725 ft (7.6 m)
(2) 90°Elbows with (1) 90°
Elbow 820 ft (6.1 m)
TABLE 5
4” (10.1 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR
LOW GROUND CLEARANCE INSTALLATIONS
Terminating (Reduce 4” to 3”)
(Reduce 10.1 cm to 7.6 cm) #of Elbows (intake + exhaust) Maximum # of Feet of Straight
Pipe
(intake + exhaust)
(2) 90°Elbows with (1) 90°
Elbow 2120 ft (36.6 m)
(2) 90°Elbows with (1) 90°
Elbow 3115 ft (35.1 m)
(2) 90°Elbows with (1) 90°
Elbow 4110 ft (33.5 m)
(2) 90°Elbows with (1) 90°
Elbow 5105 ft (32.0 m)
(2) 90°Elbows with (1) 90°
Elbow 6100 ft (30.5 m)
(2) 90°Elbows with (1) 90°
Elbow 795 ft (29.0 m)
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(2) 90°Elbows with (1) 90°
Elbow 890 ft (27.5 m)
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