Install Instructions

19
SECTION 2
INSTALLATION, LARGE CABINET
Product Groups/Sizes included in this section:
AC--1 16 (180)
AC--2 14 (150)
AC--3 08--12
HP--1 14 (150)
HP--2 12 (120)
Check sales packages – Following the project drawing
schedule tables or submittal documents, select the
scheduled heaters and single point boxes (if used) and
place at each unit.
Compare the sales package number(s) for scheduled
heater modules against the approved usage table on the
unit’s infoplate. See Fig. 1 and 2 for typical plate data. If
the scheduled heater usage does not appear on the unit
infoplate label, STOP. Contact the project engineer or the
local distributor sales office for clarification.
Open the cartons and inspect for damage.
Disconnect field power supply
1.
Disconnect power to the unit. Lock-out/tag-out
on unit disconnect switch.
2. Open and remove the access panel and cover to the
main control box.
3. Use a voltmeter to check that no power is present at
unit terminal block.
Install Single Point Box (CRSINGLE047A00,
049A00, 050A00-054A00)
1. Remove kits from boxes and verify that all of the
correct parts have arrived undamaged.
2.
If power is already connected to unit, disconnect all
power to the unit per correct lock-out/tag-out
procedures. Disconnect field power wiring or optional
factory-installed disconnect or HACR power leads at
TB1 and withdraw the wiring from the unit control box.
3.
Remove outdoor access, control box, and left indoor
access panels from the unit and save screws. See Fig. 26.
Fig. 27 shows the unit with the panels already removed.
4. Optional – The center post may be removed to facil-
itate wiring.
5.
Remove the bushings and plug from the control panel
per Fig. 28. Save the bushings and discard the plug.
6. Add seal strip to the rear bottom corner of the con-
trol panel as shown in Fig. 29.
7.
Foil tape open screw holes on the back of the single
point box as shown in Fig. 29. Different single point
boxes will have different screw holes open.
HEATER
COVERS
HEATER
MOUNTING
BRACKET
HEATER
MODULE
(LOCATION 2)
HEATER
MODULE
(LOCATION 1)
MAIN
CONTROL
BOX
SINGLE POINT BOX
(NOT SHIPPED WITH
UNIT)
CENTER
POST
C11515
(AC-1 16/180, AC-2 14/150, AC-3 08-12, HP1 14/150, HP-2 12/120)
Fig. 26 - Typical Component Location
Fig. 27 - Typical Unit with Access Panels Removed
C10170
Fig. 28 - Single Point Box Installation Details
C10169