Weil-McLain Therma Trim Electric Baseboard Heater Installation guide

Position back panels
Back panels must be positioned correctly to accommodate accessories, as shown below.
Hinged
end cap
Inside
bay corner
Outside
corner
Splice Inside
corner
Plain end cap
or wall end
Min 3 ¾"
Max 4 ½"
Min 1Z\v"
Max 1>|zn"
Min 0"
Max 2 Z|x "
Butt back panels together.
Min 3"
Max 3Z\v"
THERMA TRIM
MODEL TT HYDRONIC BASEBOARD
ASSEMBLY INSTRUCTIONS
Attach back panel to wall
Screw or nail into wall
studs at top and bottom.
No closer than 3 inches
from end of panel.
Bottom of panel must
never be lower than the
surface of the finished
floor or carpet.
Add shim as shown if
necessary.
Shim (if needed)
Finished floor surface
or carpeting.
Install brackets
Position brackets evenly along length of
panel, approximately every 2 feet.
Insert top bracket tab
into top slot in back
panel.
Press bracket flat
against back panel
and slide down so
bottom tab enters
bottom slot in back
panel.
a
b
New
length
Cut element
When a shorter length is needed
Measure from the
female end for the
required length.
Cut copper using
tube cutter and
ream to remove
burrs.
New
length
a
Remove 6 fins on
each side of the
location to be cut.
c
Cut glide rails with
tin snips.
b
d
550-110-762/0400

Weil-McLain
500 Blaine Street
Michigan City, IN 46360-2388
http://www.weil-mclain.com
550-110-762/0400
Support bare tubing
Place return pipe in
cradle provided by
bracket, as shown.
Support bare supply
tubing from bracket
using wire hangers,
(not supplied).
Holes for risers & connectors
Drill 1½" holes for risers or connectors
Solder elements to risers
and to any additional
tubing that may be
required.
When attaching radiant tubing,
solder connectors and let cool
before attaching tubing. Follow all
tubing manufacturer's instructions.
1C\," from wall
1C\," from wall
2 >\zn" above
finished floor
Install damper
Place open end of
damper onto bracket
half rounds.
Press down and inward
to snap onto bracket.
a
b
Install front cover
Hook bottom lip of
front cover under
lower bracket arm
as shown.
If cover does not fit
snugly, bend lower
bracket arm down
and reinstall front
cover.
a
bLift the front cover
until top lip of cover
snaps over top prong
of bracket.
Install element
Place element on
brackets as shown.
Assemble multiple
elements by soldering
the male end on one
element into the female
end of another.
For horizontal runs of
more than 30 feet,
install expansion
joints.
RatingsRatings
Notes: Notes: I=B=R approved water ratings are based on the active (finned) length and
include the 15% addition for heating effect allowed by the I=B=R Testing
and Rating Code for Baseboard Type of Radiation. The active length is 3"
less than the enclosure length. Ratings apply to the assembly with the
damper installed and adjusted to the normally open position.
The heating elements are constructed of 3/4" nominal copper tubing
expanded into 1 7/8" x 2 11/32" aluminum fins, which are spaced 67 to the
foot; fin thickness is .008". Elements are unpainted.
Use of I=B=R ratings at the 4 gpm flow rate is limited to installations in
which the water flow rate through the baseboard unit is equal to or greater
than 4 gpm. Where the water flow rate is not known, the I=B=R ratings at
the standard flow rate of 1 gpm must be used. Flow rates exceeding 6
gpm should be avoided because of possible noise.
Pressure drop through Therma Trim Baseboard is 0.047" of water per
linear foot at the 1 gpm flow rate. At the 4 gpm flow rate, pressure drop is
0.525" of water per linear foot.
Therma Trim Model TT I=B=R Approved Water Ratings
0
Capacities in BTU/Hr. per Linear Foot with 65 F Entering Air
Average Water Temperature ( F)
0
Water Flow Rate
Lbs/Hr
500
2000
1
4
170 180 190 200 210 220
510
540
580
610
650
690
710
750
780
820
850
900
GPM
DimensionsDimensions
8
2-25/32
2-9/16 2
1-1/4
1-11/32
-/ 2
1133
1-3/8