Install Instructions

20
Seal Bottom Corner
Seal Back Corner
C101085
Foil Tape Locations
Fig. 29 - Seal Strip and Foil Tape Locations
8. Remove the cover from the single point box.
9.
Install the single point box under the control panel
with two screws down through the control panel
(Fig. 28) and one screw (not shown) into the center
post. (See Fig. 28.) Holes have been provided. Foam
wire guides in the center post may have to be
removed. If center post was removed per step 4, the
single point box will have to be screwed into it later.
10.
The single point box kit will contain two rain shield
brackets, a larger bracket with boot seal and a smal-
ler (shorter) bracket without a seal. Remove the seal
from the larger bracket and push the conduit drip boot
seal into the short rain shield bracket. (See Fig. 30.)
Discard the larger bracket.
Conduit Drip Boot
C10167
Rain Shield Bracket
Fig. 30 - Rain Shield Installation
11. Install the rain shield bracket to the left and behind
the single point box using the two screws and holes
provided.
12. Re--install the bushings removed in Step 5.
13. Connect the tap conductors.
a. CRSINGLE047A00, 050A00 and 052A00
Connect the blue, yellow, and black power tap
conductors (pigtails) from the single point box to
the unit’s power terminal block TB-1 per unit
label wiring schematic and per Appendix A or B
and connection figures. A representative installa-
tion of two 480V heaters and corresponding
single point box is shown in Fig. 31, 32, and 33.
b.
CRSINGLE051A00, 053A00 and 054A00 These
kits include two sets of
tap conductors (blue,
yellow and black pigtails) connected at fuse
blocks 1 and 2. Connect these leads in parallel
to the unit’s power terminal block TB-1 per the
unit label wiring schematic and per Appendix A,
B or C and connection figures. (These kits also
include two small terminal blocks (TB10). The
TB10 blocks are not used with large cabinet
units in this section; discard.)
Install CRHEATER288A00--296A00
1. Remove and save the heater covers.
2.
Install heater slide track(s) from the heater kit through
the bottom of the heater mounting hole(s) and fasten
each with the two screws provided. (See Fig. 34.)
3.
Install the heater(s) (Fig. 35, 230V shown) into their
mounting location(s) using the screws provided. Tables
2 and 3 give the correct heater location as a function of
heater size, voltage, and supply air flow direction and
unit supply air opening size.
NOTE 1: Heaters with Restrictor Plates
Heater part numbers CRHEATER288A00, 289A00,
290A00, 294A00, 295A00 and 296A00 have a Restrictor
Plate attached to the heater base plate (see Fig. 36). The
horizontal projection of this plate engages a slot on the
lower left-hand side of Heater Position 2 (right-hand
opening), thus permitting a heater mounting in the right-
hand heater opening and preventing its inadvertent
mounting in the left-hand heater opening.
On certain heater applications in Tables 2 and 3, designated
by a dagger ({) symbol, a heater with a Restrictor Plate
must be installed in the left-hand heater opening. On these
installations ONLY, remove the two screws at the
Restrictor Plate, remove the plate and discard the plate and
screws. Apply foil tape over the open screw holes.
NOTE 2: Heater CRHEATER295A00, Vertical Unit,
Table 3.
The mounting location for heater CRHEATER295A00
differs based on unit type. When this heater is installed in
a unit type AC--1, AC--2 or AC--3 with vertical supply
duct (unit base opening size is approximately 36 x 28
inches), the heater is located in Heater Position 2
(right--hand opening), with Restrictor Plate intact.
When this heater is installed in a unit type HP--1 or HP--2
with vertical supply duct (unit base opening size is
approximately 30 x 16 inches), the heater is located in
Heater Position 1 (left--hand opening) and Restrictor Plate
must be removed. On these installations ONLY, remove
the two screws at the Restrictor Plate, remove the plate
and discard the plate and screws. Apply foil tape over the
open screw holes.