Carrier 39E - Manual (Page 8)

Text continued from page I.
Install remote indicator light box shipped with
outdoor automatic sections per job plans. Indicator
light box on indoor automatic units is fastened
above control box. Where a specific equipment
room application requires it, this box may be re­
located to a similar location on left-hand end of RFS
to permit easier visibility of indicator lights. Mount­
ing holes are factory provided for this. Use field-
supplied wiring of type and color corresponding to
type and color of factory wiring. Use factory-
supplied plug button to close hole in junction box
resulting from relocation of light box. Do not re­
locate junction box.
Where additional indicator lights are required,
use 1 / 2-watt (maximum) lights of correct voltage.
Connect field-supplied media runout light to ter­
minal board 2, terminals 1 and 2; operating light to
terminal board 2, terminals 3 and 4. Enclose these
and all wires in rigid or flexible conduit. Follow
NEC and all other applicable codes.
To check that RFS is properly wired:
1. Check that media runout switch is closed (supply
media roll in place).
2. Turn on power supply at fused disconnect.
3. Set media switch (MS) at ON.
4. Automatic section — set manual override switch
(MOS) at MANUAL (automatic only).
5. Set power switch (SW) at ON. Take-up spool
should turn in direction shown in Fig. 2. Amber
operating light (automatic units) should be on.
6. Set on-off switch at OFF. Take-up spool will
stop; operating light will go out. If operation is
incorrect, review wiring procedure or refer to
Service, Operational Checks described later as
required.
Step 7 — Install Roll Filter Media — The follow­
ing procedure applies to installation of initial roll
filter media as shipped with section. If replacing
dirty filter media, refer to section entitled Replacing
Dirty Filter Media.
1. Open take-up side access door. Set power switch
at OFF, set manual override switch at MAN­
UAL (Fig. 2). Open supply side access door. Set
media switch at ON.
2. Begin with lower assembly on dual roll sections.
Lift supply spool shaft upper retainer, swing
out upper end of spool shaft.
3. Install media roll on spool shaft. Note correct
position of roll so that as media unwinds, fluff
side of media will be facing into airstream
(Fig. 2).
4. Untie and remove plastic wrapper from media
roll. Replace upper end of spool shaft in
retainer.
5. Remove threading rod from its storage clips on
supply compartment bulkhead.
6. Locate eyelet end of threading wire lying in
Fig. 7 — Threading Details (Step 6)
Fig. 8 — Paper Leader Installed on
Take-Up Core (Step 9)
media track. Install threading rod on filter
media paper leader so that threading rod eyelet
is trapped at about midpoint of leader (Fig. 7).
7. Pull take-up end of threading wire so that filter
media passes around supply side idler shaft and
traverses airway from supply side to take-up
side. Be sure that threading rod, paper leader
and filter media pass thru supply side seals with­
out force. Check that threading operation
follows route shown in Fig. 2 so that media
emerges thru take-up side seals and around
take-up side idler shaft without wrinkling or
tearing.'
8. Remove threading rod and wire from paper
leader. Replace threading rod on its storage
clips on supply side. Threading wire may be
discarded.
9. Insert leader behind strap on take-up core
(cardboard tube) and fold it over itself as shown
in Fig. 8.