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Fujitsu FO20R Series Installation Instructions Manual page 10

Variable speed r-410a heat pump outdoor units
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4.0 INSTALLATION
4.3.3 Elevating Unit
WARNING:
its elevating stand in order to prevent tipping. Failure to
do so may result in severe personal injury or death.
If elevating the heat pump, either on a flat roof or on a
slab, observe the following guidelines.
• If elevating a unit on a flat roof, use 4" x 4"
[10.2 cm x 10.2 cm] or equivalent stringers positioned
to distribute unit weight evenly and prevent noise and
vibration.
• Where snowfall is anticipated, raise the unit above
the base pad to prevent ice buildup and coil damage.
Mount the unit high enough to be above the average
accumulated area snowfall. See "Ground Snow Depth"
chart below for representative snow depths.
4.3.4 Ground Snow Depth Table
ALABAMA
INDIANA
Huntsville
7
Evansville
ARIZONA
Fort Wayne
Flagstaff
48
Indianapolis
Prescott
3
South Bend
Winslow
7
IOWA
ARKANSAS
Burlington
Fort Smith
5
Des Moines
Little Rock
6
Dubuque
CALIFORNIA
Sioux City
Blue Canyon
25
Waterloo
Mt. Shasta
69
KANSAS
COLORADO
Concordia
Alamosa
15
Dodge City
Colorado Springs 14
Goodland
Denver
15
Topeka
Grand Junction
16
Wichita
Pueblo
7
KENTUCKY
CONNECTICUT
Covington
Bridgeport
23
Lexington
Hartford
29
Louisville
New Haven
15
MAINE
DELAWARE
Caribou
Wilmington
13
Portland
GEORGIA
MARYLAND
Athens
5
Baltimore
Macon
8
MASSACHUSETTS
IDAHO
Boston
Boise
6
Nantucket
Lewiston
9
Worcester
Pocatello
7
MICHIGAN
ILLINOIS
Alpena
Chicago O'Hare
18
Detroit City
Chicago
22
Detroit Airport
Moline
17
Detroit – Willow Run 21
Peoria
16
Flint
Rockford
25
Grand Rapids
Springfi eld
23
Houghton Lake
Lansing
Marquette
Muskegon
Sault Ste. Marie 80
NOTICE: Local records and experience must be considered when establishing the unit installation height. There is a 2% probability that
the ground snow depth shown in this table will be exceeded annually. Drifts have not been considered. This data represents 184
National Weather Service locations at which measurements are made and assumes a nationwide snow density of 12 lb./ft.
10
Secure an elevated unit and
GROUND SNOW DEPTH – INCHES
MINNESOTA
12
Duluth
17
International Falls
21
Minneapolis/St. Paul 50
44
Rochester
St. Cloud
17
MISSISSIPPI
22
Jackson
38
MISSOURI
33
Columbia
36
Kansas City
St. Louis
23
Springfi eld
12
MONTANA
14
Billings
19
Glasgow
11
Great Falls
Havre
12
Helena
12
Kalispell
11
Missoula
NEBRASKA
100
Grand Island
62
Lincoln
Norfolk
17
North Platte
Omaha
30
Scottsbluff
18
Valentine
35
NEVADA
Elko
53
Ely
9
Reno
17
Winnemucca
NEW HAMPSHIRE
28
Concord
37
NEW JERSEY
56
Atlantic City
42
Newark
53
43
NOTICE:
bottom of unit.
• If unit must be elevated because of anticipated
snowfall, secure unit and elevating stand such that
unit and/or stand will not tip over or fall off. Keep in
mind that someone may try to climb on unit.
NEW MEXICO
PENNSYLVANIA
64
Albuquerque
4
Allentown
43
Clayton
10
Erie
Roswell
8
Harrisburg
NEW YORK
Philadelphia
50
53
Albany
25
Pittsburgh
Binghamton
35
Scranton
3
Buffalo
42
Williamsport
NYC – Kennedy Airport
18
RHODE ISLAND
21
NYC – LaGuardia Airport
18
Providence
18
Rochester
38
SOUTH CAROLINA
16
Syracuse
35
Columbia
14
NORTH CAROLINA
Greenville
Asheville
12
SOUTH DAKOTA
17
Cape Hattaras
5
Aberdeen
17
Charlotte
10
Huron
16
Greensboro
11
Rapid City
24
Raleigh-Durham
10
Sioux Falls
18
Wilmington
9
TENNESSEE
53
Winston-Salem
17
Bristol
23
NORTH DAKOTA
Chattanooga
Bismarck
25
Knoxville
30
Fargo
34
Memphis
20
Williston
25
Nashville
29
OHIO
TEXAS
15
Akron-Canton
15
Abilene
20
Cleveland
16
Amarillo
11
Columbus
10
Dallas
22
Dayton
11
El Paso
Mansfi eld
17
Fort Worth
20
Toledo Express
8
Lubbock
9
Youngstown
12
Midland
11
OKLAHOMA
San Antonio
6
Oklahoma City
5
Wichita Falls
Tulsa
8
UTAH
66
OREGON
Milford
Burns City
24
Salt Lake City
11
Eugene
17
Wendover
15
Medford
8
VERMONT
Pendleton
11
Burlington
Portland
10
Salem
7
Do not block drain openings on
VIRGINIA
23
Dulles Airport
19
Lynchburg
23
National Airport
16
Norfolk
22
Richmond
16
Roanoke
20
WASHINGTON
Olympia
21
Quillayute
Seattle-Tacoma
12
Spokane
4
Stampede Pass
Yakima
42
WEST VIRGINIA
43
Beckley
14
Charleston
38
Elkins
Huntington
8
WISCONSIN
6
Green Bay
8
La Crosse
5
Madison
8
Milwaukee
WYOMING
6
Casper
10
Cheyenne
3
Lander
5
Sheridan
6
10
2
3
5
16
8
3
37
19
16
18
9
12
17
24
24
14
41
51
25
51
20
21
15
36
32
32
32
10
15
20
25
3

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