17
INSTALLATION
Step 1 — Place Units in Position
A factory tag is on top of each unit. The tag states riser tier num
-
ber, floor, room number (if furnished), and supply-air arrange
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ment. Check unit for any other labels that apply to installation.
Units should not be installed at locations other than that marked on
the unit identification tag. If no specific detail is shown on tag for
unit location, then determine configuration for the Universal unit
based on information within this manual. Should any questions
arise regarding unit configuration, contact the sales representative
or the factory BEFORE proceeding. Remove unit from pallet and
take directly to assigned space for installation. While all equip
-
ment is designed and fabricated with sturdy materials and may
present a rugged appearance, great care must be taken to assure
that no force or pressure be applied to the coil, risers or piping
during handling. Never use the riser to lift the unit. To maintain the
straight and square cabinet alignment, avoid lifting or supporting
the cabinet only at the top and bottom.
While the manufacturer does not become involved in the design
and selection of support methods and components, it should be
noted that unacceptable system operating characteristics and/or
performance may result from improper or inadequate unit struc
-
tural support. Due to variations in building construction, floor
plans, and unit configurations, each installation is different. The
actual step-by-step method of installation may vary from unit to
unit. However, the risers should be moved as little as possible to
avoid damage to the unit and internal components.
42SG, SH, AND SJ UNITS
1. Begin on lowest floor and progress upward, floor by floor, to
top.
2. Examine drain line (Fig. 3-11). Be sure both ends are in place
and that it forms a trap. Avoid pinching drain line.
3. Tip unit over riser hole in building floor. As unit is righted,
align riser with unit below.
NOTE: The unit must be lowered into the space, taking care to
properly align the risers to engage the riser swaged section on the
unit below. The riser should never be bent or pushed together to be
passed through the floor slot and should never be lifted up or
pulled down to meet the riser on the floor below or above.
4. Install isolator pads beneath the four corners of unit if appli
-
cable.
5. Before anchoring the equipment in place, the unit must be
leveled, and the cabinet must be squared and brought into line
with any adjacent or included walls. The unit may be
anchored in place by bolting directly through the unit floor or
attaching to the cabinet in some location that will not interfere
with drywall or other items such as the supply grille, thermo
-
stat, or return access panel. When attaching to the unit cabi
-
net, care must be taken to not penetrate the cabinet in
locations that may damage internal components or wiring.
The mounting technique is a matter of choice; however, the
unit should always be anchored securely to prevent move
-
ment during construction and riser expansion and contraction.
On certain units, shipping screws or braces must be removed
after the unit is installed. Be sure to check all tags on the unit
to determine which, if any, of these devices need to be
removed.
6. If installing a 42SJ unit, follow Steps a-h. For 42SG and
42SH units, continue to Step 7.
NOTE: The 42SJ ditto and primary/secondary fan coils have been
designed to serve two separate rooms. These products are classi
-
fied by Underwriters Laboratories Inc. for use in penetration
firestop systems, control number 27WL when ordered with 1 hour
rated chase. See UL Fire Resistance Directory for more
information. Figure 15 shows the 42SJ unit with standard risers
and with Siamese risers.
a. Lay out the control lines for the drywall track and studs
in the floor and ceiling (see Fig. 16).
NOTE: Tracking may be installed now or after the unit is set.
b. Position the 42SJ fan coil assembly between two rooms
with the unit drywall separation spotted over the wall
control lines.
Fig. 15 — 42SJA/SJB Unit with Standard and
Siamese Risers
Fig. 16 — 42SJA/SJB Wall Board Installation
c. If not already installed, install the floor and ceiling tracks
up to and over the 42SJ fan coil unit.
d. Position the vertical studs and fasten into each of the stud
pockets formed into the chase side panels (see Fig. 16).
42SJB
42SJA
Standard
(Ditto)
42SJB
42SJA
Siamese
Install Wall
Stud Into
Pocket
Formed By
Chase Side
Panel
Chase
Side
Panel
Drywall
Track And
Stud
Control
Lines
Install Studs From Top Of
Unit To Ceiling (4 Corners)