Unit-Specific Installation Instructions; Small To Medium Cabinet Installation; Check Sales Packages; Disconnect Field Power Supply - Carrier CRHEATER101A00 Installation Instructions Manual

UNIT-SPECIFIC INSTALLATION INSTRUCTIONS

The unit-specific installation instructions are presented in two
sections, grouped by common chassis and control box design.
"SMALL to MEDIUM CABINET installation" on page 11 covers
smaller chassis models. "LARGE CABINET installation" on
page 21 covers the large chassis models. See Table 11 for section
assignment for specific unit types and sizes.
Table 11 — Unit-Specific Installation Instructions
UNIT
SIZE
AC-1 AC-2
04, 036
05, 048
06, 060
07, 072
08, 090
09, 102
11
12, 120
14, 150
16, 180
LEGEND
See Small to Medium Cabinet Installation section for
unit-specific installation instructions.
See Large Cabinet Installation section for unit-specific
installation instructions.

SMALL TO MEDIUM CABINET INSTALLATION

Product Groups/Sizes included in this section:
• AC-1 04-14 (036-150)
• AC-2 04-12 (036-120)
• AC-3 04-07
• HP-1 04-12 (036-120)
• HP-2 04-09 (036-102)

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 info plate.
See Fig. 2 and 3 for typical plate data. If the scheduled heater
usage does not appear on the unit info plate label, STOP. Contact
the project engineer or the local distributor sales office for
clarification.
Open the cartons and inspect for damage.
NOTE: If one heater in a two-heater system needs to be replaced,
both heaters must be replaced with a single module (except for
CRHEATER102A00 + 102A00, CRHEATER117A00 + 117A00,
and CRHEATER110A00 + 117A00). Both heaters need to be
replaced with a single module that is designed to UL1995 5th
edition.

Disconnect Field Power Supply

1. Disconnect power to the unit. Lock-out/tag-out on unit
disconnect switch.
GROUP
AC-3 HP-1 HP-2
2. Remove the outdoor access panel, control box cover, and
indoor access panels from the unit. Save screws.
(See Fig. 4-6.)
3. Use a voltmeter to check that no power is present at unit
terminal block.
4. Remove control box cover and center post. Save screws. (See
Fig. 6.)
5. If unit does not have the factory-installed disconnect or
HACR option or has not had field power wiring connected,
skip to Step 6.
When unit is equipped with factory-installed disconnect or
HACR or has field power wiring connected, disconnect the
power leads at the control box terminals and withdraw the
conductors from the control box.
Disconnect Mounting
Location
Unit Block-off
Panel
Fig. 4 — Typical Access Panel Location
(AC-1/HP-1 04-07/036-072, HP-2 04-06/036-060,
AC-2,3 04-06/036-060)
Disconnect Mounting
Location
Unit
Block-off
Panel
Fig. 5 — Typical Access Panel Location
(AC-1 08-14/090-150, AC-2 07-12/072-120, AC-3 07,
HP-1 08-12/090-120, HP-2 07-09/072-102)
11
Max. Temp/
Static Label
Outdoor
Access Panel
Max. Temp/
Outdoor
Static Label
Access Panel
Indoor
Access
Panel
Indoor
Access
Panel