Johnson Controls PCE6 Series Installation Manual

INSTALLATION MANUAL
Single Package
Air Conditioner/Electric Heat
Models: PCE6 Series
2 ton to 5 ton - 208/230 V - Single-Phase
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Model number nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Airflow performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Component location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Unit four-point load weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unit dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Bottom duct dimensions (in.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Rear duct dimensions (in.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical field control wiring diagram for air conditioner models . . . . . . 6
Typical field power wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit limitations - PCE6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Application limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Weights and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unit dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unit clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical data for 208/230-1-60 single source power . . . . . . . . . . . . 7
Electrical data for 208-1-60 multi source power . . . . . . . . . . . . . . . . . 7
Electrical data for 230-1-60 multi source power . . . . . . . . . . . . . . . . . 8
Single-point wiring kit part numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Section I: General information

PCE units are factory assembled air conditioners designed for outdoor
installation on a rooftop or a slab. Field installed electric heater acces-
sories are available to provide electric heat.
The units are completely assembled on rigid, removable base rails. All
piping, refrigerant charge, and electrical wiring is factory installed and
tested. The units require only electric power and duct connections at
the point of installation.

Section II: Safety

This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
Johnson Controls Ducted Systems
List of sections
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Typical wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Start-up sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
List of figures
Single-point wiring kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Indoor blower control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Measuring external static pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Connection wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Ladder wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
R-410A quick reference guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
List of tables
Electric heat blower off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Airflow performance - side duct application . . . . . . . . . . . . . . . . . . . 11
Electric heat performance data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Additional static resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Delay profile descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Thermostat signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Minimum blower speed for electric heat . . . . . . . . . . . . . . . . . . . . . . 14
Enhanced ECM indoor blower control board fault codes . . . . . . . . . 15
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service, or maintenance
can cause injury or property damage. Failure to carefully read and
follow all instructions in this manual can result in furnace mal-
function, death, personal injury, and/or property damage. Only a
qualified contractor, installer, or service agency should install this
product.
This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes,
including but not limited to building, electrical, and mechanical codes.
Assembled at a facility with
an ISO 9001:2015-certified
®
Quality Management
System
WARNING
!
CAUTION
!
6310638-UIM-B-0823