Trane architectural wall fin is ideal for
heating modern commercial,
institutional or industrial buildings.
Attractive styling and wide application
flexibility allow wall fin cabinet designs
to be used for virtually any application.
Available for hydronic or steam heating,
Trane wall fin can also be used in
combination with convectors for smaller
areas, allowing for the use of one source
when designing a radiation heating
system. (See FIN-DS-2 for convector
applications.)
Trane Wall Fin — Simply the Best
Wall fin effectively meets the heating
needs of long, open areas. It counters
cold air downdrafts common to
expansive glass areas used in many of
today’s most prestigious buildings.
Provides continuous heat along room
•
perimeter.
Allows removal of any unit panel for
•
service accessibility.
The front panel never touches the wall
•
— only Trane’s exclusive mounting
strip.
The front panel can be raised or
•
removed without disturbing the unit or
damaging wallpaper, paint or the
plaster seal.
Operates quietly because there are no
•
moving parts.
Type T
Features
and Benefits
An effective heating system for any office. Attractive styling that blends with any
architectural design.
Type S
Type F
Type TA
Controls with the damper or valve
•
individually.
Blends well with any decor.
•
Works effectively with cooling-only
•
VAV and heat recovery systems.
Includes 14 or 16-gauge front panels.
•
Unit vent draft barrier enclosures.
•
Pipe enclosures for use with ForceFlo
•
and Fan Coil Units.
Wall Fin
I=B=R Certified Ratings for Trane Wall
Fin
The I=B=R symbol is the registered
trademark of the Hydronics Institute
which tests and rates in strict accordance
with published standard wall fin
elements and elements with enclosures.
The wall fin heating units must conform
to appropriate test standards to have
certified I=B=R ratings.
Why Hydronics?
Besides the reliability of equipment
ratings, and the well established
reliability of hydronic accessories, there
are many good reasons why hydronic
systems have long been recognized as
the standard method for providing
indoor comfort.
Hydronic heating, whether steam or hot
water, provides positive, controlled
circulation of the heating medium.
Systems are basically self-balancing, and
in larger, more complicated heating
systems, balancing is positively
controlled by familiar valves and
thermostats.
The life of some hydronic equipment
may be measured in decades; some
existing boilers are more than fifty years
old. In addition to the high efficiency of
boilers (some over 85%) the losses
through the distribution system are
extremely low on modern installations.
Temperature control is close to ideal with
hydronics. Any well-designed system
can provide excellent comfort, without
drafts or sharp swings in temperature.
The flexibility of hydronic installations
permits a variety of piping
arrangements, simple or sophisticated
controls, and a large choice of room
distribution units for all comfort
applications.
Hydronic Light Commercial
Slope Top Wall Fin — Model 11S
Features and Benefits
Performance and General Data
Dimensional Data
Cover and Accessory Layout
Mechanical Specifications
85
91
93
96
98
100
101
3
Features and
Benefits
A simple installation designed to last
without visible fasteners — Trane’s
exclusively designed mounting strip
makes it possible.
Cabinet
enclosures
and
accessory
panels
hinge-lock
easily into
mounting
strip.
Roll-formed
indentation
runs full
length of
mounting
strip for
easy bolt
hole
location.
Ribbed steel
enclosure
brackets
provide
element
support base
and brace the
Mounting strip keys entire
installation, attaches to any
wall, and assures the tightest
fit possible — even against
the most imperfect wall.
End Panel
Element/pipe
supports
position in slots
in the enclosure
bracket to allow
two-tier
element and
pipe
installation.
Curved rectangular
metal washers to
assure tight fit against
the wall.
Serves as wall
panel stop.
Cradle and nylon cradle
guides assure exact element
location and allow element
cradles to slide freely and
noiselessly.
Serves as plaster
stop for semirecessed
installations.
Rigid element damper
provides heat
modulation.
Roll-formed front panels hinge
invisibly into the mounting strip.
Locking clip slides over panel lip to hold it
securely to bracket.
Deluxe unit with extruded grille. The grille is
separate and hinges into the mounting strip.
Panel clip and slide bolt fastener for front
panel alignment are hidden from view.
FIN-PRC004-EN4
Features and
Benefits
Hydronic Heating Elements — Copper/
Aluminum and Steel
Copper-Aluminum Elements
3
/4”, 1” and 1 1/4” (19 mm, 25 mm and 32
mm) Copper Tubes With 40, 50 or 58
Aluminum Fins per foot (131, 164 190
per meter).
3
/4” (19 mm)
1” (25 mm)
1
/4” (32 mm)
1
Positive Temperature Control
Efficient element-mounted damper.
•
Reduces unit capacity by 70 percent.
•
Has jam-proof bead chain control
•
system.
Control knob is mounted on the outlet
•
grille.
Steel Elements — Standard options
feature 1
steel fins per foot (171 per meter).
1
1
/4” (32 mm) steel tube with 52
1
/4” (32 mm)
For Models S, F, T & TA
Elements available in copper-
•
aluminum or steel.
Elements are efficient and long lasting.
•
Element tubes mechanically expanded
•
into fin collars.
Fin collars provide even and positive
•
spacing for even air distribution.
The mechanical bond assures an
•
efficient and durable element
assembly.
Fins cannot work loose.
•
5FIN-PRC004-EN
Application
Considerations
A Heating System and Style to Suit Any Application
Wall Mounted
T
Top Outlet
Top Outlet
Extruded
Front Outlet
Wall Mounted Cabinet Options
3
/8”
3
(86 mm)
FS
Slope Top
Outlet
With
Grille
TA
Type EType X
Enclosure styles meet the heating needs
of long, open areas in any interior.
Wall-mounted wall fin enclosures
•
available in depths of four and six
inches (102 mm, 152 mm).
Enclosure depth is determined by the
•
type of element to be used.
See pages 13 through 43 and Tables
•
PD-1 through PD-25 for details.
Front inlet grilles.
•
Bottom inlet grilles.
•
Inverted enclosures for styles S, F and
•
T enclosures only.
Tamperproof fastener option.
•
Pipe Enclosures
•
Tamperproof
Fastener
Ceiling Mounted
Type CS
1
/2” (13 mm) Dia. Mtg. Hole
4 1/2”
(114 mm)
Front Inlet Grille
Floor Mounted
Type E3
Continuous
Sheet Metal
Angle
Type E3-2W
Inverted Enclosure
Type E3A-1W
Pipe EnclosureBottom Inlet Grille
Type E3A-2W
Ceiling-mounted wall fin enclosures
•
available in depths of four and six
inches (102 and 105 mm).
See pages 13, 14, 15 and 49.
•
Pedestal wall fin enclosures available
•
with one or two wide elements.
See pages 36, 37, 42, 53, 54, 55, 56, 57
•
and 58 and Tables PD-24, PD-25, M-1,
M-2, M-3, M-4 and M-5.
FIN-PRC004-EN6
Selection
Procedure
Hydronic/Steam Wall Fin
Selection
Hot Water Systems
The capacity rating of wall fin in a hot
water heating system depends on the
difference between average water
temperature and entering air
temperature, and on the velocity at
which water is circulated through the
tube. The effect of water velocity on the
capacity rating is appreciable (see Chart
S-1) and should be taken into account
when selecting wall fin. Following are
example selections for hot water
systems.
Hot Water Systems
Example 1
Assume a two-pipe system is being used
with 180°F average water temperature,
20°F temperature drop and 65°F entering
air temperature. Assume a calculated
heat loss of 20,000 Btu, for which one
row of 1 1/4” steel element in a Type 12S
enclosure is desired.
From Chart S-1, reading from 20,000 Btu
(under 20°F temperature drop) across to
1
/4” steel element and down, indicates
a 1
a water velocity of approximately .45 ft/
sec. The water velocity correction factor
corresponding to .45 ft/sec is .920. The
radiation is selected so that it would
deliver
20,000 Btu (calculated heat loss)
0.920 (velocity correction factor)
or 21,739 Btu if the water velocity were 3
ft/sec. It will then deliver the required
20,000 Btu at the actual water velocity of
.45 ft/sec.
1
From Table PD-8, the output of 1
steel, Series 52 element in a Type 12S
enclosure is (looking under 180°F
average water, 65°F entering air) 1060
Btu/lineal foot at 3 ft/sec water velocity.
Wall fin required:
21,739 Btu = 20.5 lineal feet.
1060 Btu/ft
Length Selection — Loop Systems
Example 2
If the unit in Example 1 above was part
of a 100,000 Btu loop with a 20°F drop
(across the entire loop) the water
velocity through the loop would be 2.20
ft/sec and the water velocity correction
factor for all units on this loop would be
approximately .987. For the unit being
considered, the radiation would be
selected to deliver 20,300
20,000
/4”
( .987 )
Btu at 3 ft/sec water velocity.
Steam Systems — Selecting Wall Fin
Lengths
The capacity rating of wall fin in a steam
heating system depends upon the
difference between the steam
temperature and the entering air
temperature. For any steam system, to
establish the lineal feet of wall fin
required: divide the heat loss by the
capacity rating per foot at the steam
system and entering air conditions.
Ratings for 1 psi steam and 65°F
entering air can be found on Tables
PD-1 through PD-21. Ratings for other
steam and air conditions can be
obtained by multiplying the 1 psi —
65°F capacity ratings by the proper
steam correction factor from Table S-2.
Example 1
Assume a steam system with 1 psi
steam and 65°F entering air conditions.
Also assume a 15,000 Btu heat loss for
which a 1” copper-aluminum element 40
fins/foot in a Type 10S enclosure is
desired.
Assume a steam system with 20 psi
steam and 55°F entering air conditions.
Also assume a 25,000 Btu heat loss for
which 2 rows of 1
element on 9
without a cover. The capacity rating per
lineal foot from Table PD-3 at 1 psi steam
and 65°F entering air is 2120 Btu/ft.
Multiplying this capacity rating by 1.52
(steam correction factor from Table S-2)
gives a rating of 3222 Btu/ft with 20 psi
steam and 55°F entering air.
Chart S-1 — Water Velocity Correction
Factors — Pressure DropsENGLISH
All Catalog Capacities Based On 3.0
Feet Per Second Water Velocity.*
*Correction Factor =.04
Water Velocity
(3)
SI
FIN-PRC004-EN8
Selection
Procedure
Effect of Temperature Drop On
Fin-Tube Ratings
The effect of temperature drop on heat
output of a wall fin element can be
readily determined. Select the heating
element using average water
temperature (entering water
temperature minus
1
/2 water
temperature drop) and correct for water
velocity as follows:
By use of the relationship,
GPM =
BTU
*500 x Water Temperature Drop
the waterflow rate for a wall fin unit of
the required Btu and at a definite
temperature drop, is easily calculated.
(Many engineers use gallons per minute
as the basis for selecting pipe sizes, since
charts are set up on this basis in the
The heat output of a given wall fin unit
will vary somewhat with different water
velocities, all other conditions being
equal. From Chart S-1, the water velocity
can be found for a wall fin element of the
particular tube size and gpm waterflow
required. The velocity correction factor
can be determined by using Chart S-1.
ASHRAE Guide. Therefore, this would
not be an extra step.)
Table S-1 — Pipe Water Capacities and Quantities Circulated at Velocity of 3* Feet Per Second (.91 m/s)
*For steam pressures and air temperatures other than 1 psi and 65°F (6.895 kPa and 18.3°C). For process applications, deduct heating effect after applying above factor to 1 psi, 65°F (6.895 kPa,
18.3°C air) air rating for desired element arrangement.
Lbs. Per Hour
(Gals. Per Ft.) (3600) (8.3)
Entering Air Temperature
9FIN-PRC004-EN
Selection
Procedure
Table S-3 — Correction Factors for Non-Standard Average Water Temperatures
NOTE: To determine capacity of non-standard conditions, multiply the corresponding factor above by the BTU (Watts/
meter) steam rating found on pages 13-37.
*The weight of a U.S. gallon of water at
60°F is 8.33 pounds. At a flow rate of
1 U.S. gpm, the weight of the water
circulated through the system in one
hour is 1.0 x 8.33 multiplied by 60 minute
= 500 pounds.
Table S-4 — Factors Used to Convert 1 PSI
Steam Ratings to Hot Water Ratings at
Temperatures Indicated
Note: To determine capacity at non-standard conditions,
multiply the corresponding factor above by the BTU
(Watts/meter) steam rating found on pages 13-37.
FIN-PRC004-EN10
Selection
Procedure
Rating Adjustment for Greater Than
Cataloged Installed Height-Heating
Effect
Ratings in Tables PD-1 through PD-25
include the factor shown in Table S-5 for
installed heights recommended.
Installed height defines the installed
location that is the basis for the
published rating and determines the
percentage which may be added to
condensation capacity. If the unit is
installed at a different height than
recommended, the following
computation applies:
Capacity at actual installed height=
(Table S-5 factor for
Rated Capacity x
actual installed height)
(Table S-5 factor for
recom. installed height)
Example
A 12S enclosure is to be installed 6”
above the recommended installed
height. Compute the new capacity rating:
Wall Fin Correction Factors Selection
1
Actual installed height is 19 7/32” (13 7/32”
from Table PD-8 + 6” (152 mm) ).
Interpolating from Table S-5, the heating
effect factor is 1.065.
2
Recommended installed height is 13 7/32
(from Table PD-8). From Table S-5, the
heating effect is 1.075.
3
Actual capacity = rated capacity
(Table PD-8) x 1.065
1.075
Determining Pressure Drop
(Refer To Chart S-1)
One-Row Units
— Read pressure drop
per 100 feet (30.5 m) on one row
assembly below the water velocity.
Two-Row Units, Serpentined (piped in
— All water passes through both
series)
rows, so pressure drop per 100 feet (30.5
m) of assembly is twice the pressure
drop below the water velocity.
Two-Row Units, Headered (piped in
parallel)
— Half the water flows through
each row. The actual water velocity in
each row is one-half the water velocity.
The water velocity correction factor
appears below the actual water velocity.
Pressure drop will be the same for each
row, so the drop per 100 (30.5 m) feet of
assembly appears below the actual
water velocity.
Table S-5 — Heating Effect Factors for Greater Than Cataloged Installed Heights
Type Enclosure457 mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
Installed height is vertical distance from floor to top of upper element for bare element; top of outlet grille for Type F enclosure; center of outlet grille for Type S enclosure; and
underside of the outlet grille for Type T, TA or E unit.
18” Or Less 483508533559584610635660686711737762813864914
19”20”21”22”23”24”25”26”27”28”29”30”32”34”36” or More
Installed Heights (Inches)
11FIN-PRC004-EN
Selection
Procedure
Maximum Installed Lengths
Hot water systems velocity and pressure
drop are two factors that will influence
the maximum installed lengths of wall fin
hot water systems. Velocity in any pipe
size is dependent upon the capacity of
the installed wall fin and the water
temperature drop through the unit. Table
S-6 gives the maximum installed
capacity for any single wall fin unit or
loop based on *5 ft./sec (1.5 m/sec).
velocity through the tube (maximum
recommended for quiet operation) and a
20°F (-6.7°C) water temperature drop.
The maximum recommended installed
length for any element and enclosure
combination can be determined by
dividing the maximum recommended
capacity from Table S-6 by the lineal foot
capacity of the element and enclosure
combination from the capacity table.
For headered two-row element
installations (elements piped in parallel),
the maximum capacity from Table S-6 can
be doubled.
For water temperature drop other than
20°F (-6.7C), the maximum capacity may
be determined as follows:
*For low pressure systems. Based on 1/4 psi (1.7kPa) pressure drop per 100 feet (30.5 m).
Wall fin elements having the smallest
tube sizes and highest velocities will give
the most efficient heat output and the
lowest pipe fitting costs. However, this
should be balanced against lower
pressure drops and perhaps a more
economical circulating pump selection
made possible with large tube sizes or
larger temperature drops.
*Tables based on 3 ft/sec. (.91 m/sec.)
velocity should not exceed 8 ft/sec
(2.4 m/sec.) due to pipe corrosion.
FIN-PRC004-EN12
Selection
Procedure
Provisions For Expansion
Copper tube wall fin elements and
copper tubing, when installed at 40°F
(4.4°C) and operated at 200°F (93°C)
average water temperature, will expand
as much as 1/8” (3.2 mm) in each 10’ (3
m) length. Provisions must be made to
accommodate this expansion at the
heating element supports and at the
ends of the wall fin elements and piping.
Packless expansion joints and flexible
connectors are commercially available
to accommodate expansion in a
horizontal run of wall fin or at the ends
of piping. Manufacturer’s literature
should be consulted for details.
Charts S-2 and S-3 give the total amount
of expansion for various lengths of
copper or steel tube when installed at
40°F (4.4°C) and operated at different hot
water or steam temperatures.
*Based on wall fin installed at 40°F (4.4°C). For wall fin
installed at other temperatures, subtract the installation
temperature from the operating temperature to find the
actual temperature difference. Add this difference to
40°F (4.4°C). Now read in Chart S-2 or S-3 from the
temperature obtained across to installed length and
down to the amount of expansion.
Chart S-2— Expansion in Steel Elements and Steel Pipe
OPERATING
TEMP*5 10 15 20 2530 3540 45 5055 60
INSTALLED LENGTH (IN FEET)ENGLISH
400°F
350°F
300°F
250°F
200°F
0
OPERATING
TEMP*
204°C
177°C
149°C
121°C
93°C
1
/4
1.53.14.66.17.69.110.7 12.2 13.715.2 16.8 18.3
1
/2
AMOUNT OF EXPANSION (IN INCHES)
INSTALLED LENGTH (IN METERS)
3
/411
1
/41 1/21 3/4
SI
06131925323844
AMOUNT OF EXPANSION (IN MILLIMETERS)
Chart S-3 — Expansion in Copper-Aluminum Elements and Copper Tube
OPERATING
TEMP*5 1015202530354045505560
300°F
250°F
200°F
0
1
/4
INSTALLED LENGTH (IN FEET)ENGLISH
1
/2
AMOUNT OF EXPANSION (IN INCHES)
3
/411
1
/41 1/21 3/4
OPERATING
TEMP*
149°C
121°C
93°C
1.53.14.66.17.69.110.7 12.2 13.715.2 16.8 18.3
INSTALLED LENGTH (IN METERS)SI
06131925323844
AMOUNT OF EXPANSION (IN MILLIMETERS)
13FIN-PRC004-EN
Performance
Data
Bare Element Capacities
Table PD-1 — Ratings of Wall Fin Copper/Aluminum Elements Without Enclosures
Fin SeriesHeightEDR104°C99°C93°C88°C82°C77°C71°C66°C60°C54°C49°C43°C38°C
ElementPer Meter TiersmmSq. M Watts/Meter 1.050.950.860.78 0.690.61 0.53 0.450.40 0.33 0.26 0.20 0.15
NOTE: Rating is Btu/hr/ft (Watts/meter) of finned length (for element dimensions see page 49). Hot water ratings determined by applying correction factor to steam ratings, are for
water velocities of 3 ft/sec (.91 m/s) or greater. See page 9, Chart S-1 for correction factors for water velocities other than 3 ft/sec (.91 m/s). For definition of installed height and heating
effect factors, see page 11. For heating ratings at other steam pressures and/or entering air temperatures, see page 10, Table S-2.
19FIN-PRC004-EN
Performance
Sloping
Data
Top
Table PD-5 — Ratings 4” (102 mm) Deep, Type S - Enclosure With Copper/Aluminum Elements
Steam CapacityHot Water Capacity
Per Ft.-1 Psi at 65°F AirBtu/Hr./Ft. — At 65°F Air, Average Water Temperature
Per Meter - 6.895 kPaWatts/Meter — At 18.3°C Air, Average Water Temperature
Fin SeriesHeightEDR104°C99°C93°C88°C82°C77°C71°C66°C60°C54°C49°C43°C38°C
ElementPer Meter Tiers Encl.mmSq. M Watts/Meter 1.05 0.95 0.86 0.78 0.69 0.61 0.53 0.45 0.40 0.33 0.26 0.20 0.15
NOTE: Rating is Btu/hr/ft (Watts/meter) of finned length (for element dimensions see page 49). Hot water ratings determined by applying correction factor to steam ratings, are for
water velocities of 3 ft/sec (.91 m/s) or greater. See page 9, Chart S-1 for correction factors for water velocities other than 3 ft/sec (.91 m/s). For definition of installed height and heating
effect factors, see page 11. For heating ratings at other steam pressures and/or entering air temperatures, see page 10, Table S-2.
FIN-PRC004-EN24
Performance
Front
Data
Outlet
Table PD-10 — Ratings 4” (102 mm) Deep, Type F - Enclosure With Copper/Aluminum Elements
Steam CapacityHot Water Capacity
Per Ft.-1 Psi at 65°F AirBtu/Hr./Ft. — At 65°F Air, Average Water Temperature
Per Meter - 6.895 kPaWatts/Meter — At 18.3°C Air, Average Water Temperature
Fin SeriesHeightEDR104°C99°C93°C88°C82°C77°C71°C66°C60°C54°C49°C43°C38°C
ElementPer Meter Tiers Encl.mmSq. M Watts/Meter 1.05 0.95 0.86 0.78 0.69 0.61 0.53 0.45 0.40 0.33 0.26 0.20 0.15
NOTE: Rating is Btu/hr/ft (Watts/meter) of finned length (for element dimensions see page 49). Hot water ratings determined by applying correction factor to steam ratings, are for
water velocities of 3 ft/sec (.91 m/s) or greater. See page 9, Chart S-1 for correction factors for water velocities other than 3 ft/sec (.91 m/s). For definition of installed height and heating
effect factors, see page 11. For heating ratings at other steam pressures and/or entering air temperatures, see page 10, Table S-2.
29FIN-PRC004-EN
Performance
Top
Data
Outlet
Table PD-15 — Ratings 4” (102 mm) Deep, Type T - Enclosures With Copper/Aluminum Elements
Steam CapacityHot Water Capacity
Per Ft.-1 Psi at 65°F AirBtu/Hr./Ft. — At 65°F Air, Average Water Temperature
Per Meter - 6.895 kPaWatts/Meter — At 18.3°C Air, Average Water Temperature
Fin SeriesHeightEDR104°C99°C93°C88°C82°C77°C71°C66°C60°C54°C49°C43°C38°C
ElementPer Meter Tiers Encl.mmSq. M Watts/Meter 1.05 0.95 0.86 0.78 0.69 0.61 0.53 0.45 0.40 0.33 0.26 0.20 0.15