7. Drill the required size mounting holes in the back of the
heater housing and install the housing on the wall using
screws, bolts or anchors (by installer) to suit the wall con-
struction.
Note: Predrilled 1/4” diameter mounting holes are provided in
each junction box. Additional mounting holes will have to be
drilled in the housing to support the weight of long length
heaters (6’ and longer). Do not drill any additional holes in the
junction boxes.
8.
Tighten mounting screws and back off 1/4 to 3/4 turn to
allow for expansion and contraction of the heater.
9.
Following the wiring diagram secured to the heater, make
electrical connections. Ground the heater using the ground
screws provided (Figure 3).
10. Replace front cover and secure with mounting screws. (See
Figure 3).
Installation of Multiple Wall to Wall Units
Note: For ease of installation, it is important that the sequence
of operations indicated below be followed in order.
1. Remove all the front covers from the heaters by removing
mounting screws (Figure 3).
2. Refer to wiring diagram for power supply entry and remove
appropriate electrical knockout (Figure 4) from the heater in
which power supply connections are to be made. The power
supply may be brought in to the end of only one heater and
the remaining heaters may be connected in parallel using the
wireway. Use Table B to size the field installed wiring in the
wireway.
3. If conduit cover (must be purchased separately) is desired,
cut off the appropriate length and install to the wall.
4. If required by plan, install filler section (1), (Figure 1) to either
heater (2) or (3) by means of four #6 screws supplied with
filler section. (Refer to Figure 6.) Discard filler section end
cap in this application.
Note: Heaters may butt against each other, thus eliminating the
filler piece, if so desired.
Note: If a heater has a disconnect switch and / or thermostat
and is to have a filler section or a corner section at the left end,
the section must be mounted to the heater since the thermostat
or disconnect switch will prevent the section from telescoping
into the heater.
5 If the wall run has inside or outside corners, install corner (4
and 5) to the heater (2 and 9) by means of four #6 screws
supplied with corner section. (Refer to Figure 6).
6. Install end caps (6) on the outer end of the last heater(7) and
(9) using four #6 screws supplied with end caps. (Refer to
Figure 5 for details of end cap installation.)
7. Drill the required size mounting holes in all the heater housings.
Note: Predrilled 1/4” diameter mounting holes are provided in
each junction box. These holes may be used only when no slip-
in accessory is to be installed in that end of the heater ( such as
when heater(3 and 7) are butted together as shown in Figure 2).
Additional mounting holes will have to be drilled in the housing
to support the weight of long-length heaters (6’ and longer). Do
not drill any additional holes in junction boxes.
8.
Check for evenness of wall. Do not draw the heaters
against an uneven wall surface. If an uneven wall is
encountered, use shims to keep the heater housing
straight.
9.
Run proper size branch circuit to the junction box through
the selected knockout.
10. Mount the heater (2, Figure 2) on the wall using screws,
bolts or anchors (by installer) to suit the wall construction.
11. Telescope the heater housing (3) over the filler section (1)
by the desire amount and mount the housing to the wall.
12. Telescope the heater housing (8) over the corner section
(4) by the desired amount and mount the housing to the
wall.
13. Mount the remaining heaters as described above, making
sure that the heaters with end caps are installed at the end
of the run.
14. Blank sections, if any are installed in the same manner as
the heaters.
Note: 75ºC field wiring may be run through the blank sections,
filler sections and corner sections.
15. Control sections, if any, are installed in the same manner
as heaters. Refer to wiring diagram on control sections for
connecting the wiring to the heaters
Installation of Mullion to Mullion Units
The back of the heater housing contains no mounting holes
(other than those at the ends) and therefore is ideal for installa-
tion in front of glass curtain walls. The housing back presents
an attractive appearance when viewed from the outside through
the glass wall.
Installation procedures are similar to those for wall-to-wall instal-
lation (Step Six) except for the following differences.
1. Attach the housing to the mullion using the mounting holes
provided in the junction boxes as shown in Figure 7.
2. On horizontal mullion installation, install support brackets as
shown in Figure 8.
5
Figure 6
