Johnson Controls Unitary Products
5156631-UIM-G-0417
R-410A OUTDOOR SPLIT-SYSTEM
HEAT PUMP
MODELS: 16 SEER -
YHM, CH16, TH16 SERIES
2 – 5 TONS (1 PHASE)
INSTALLATION MANUAL
®
®
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
INDOOR EXPANSION DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SYSTEM START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
FAULT CODE - INVERTER TROUBLESHOOTING . . . . . . . . . . . . 17
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
LIST OF FIGURES
Typical Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Alternative Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation of Vapor Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
TXV Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
TXV Bulb Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Proper Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Vertical Temperature Bulb Orientation . . . . . . . . . . . . . . . . . . . . . . . . .7
Jumper Location for Charging Mode and Normal Operation Mode . . 9
Outdoor Unit Swing Away Control Box . . . . . . . . . . . . . . . . . . . . . . . . 9
Outdoor Unit Control Box (Single Phase) . . . . . . . . . . . . . . . . . . . . . 10
Typical Field Wiring (Air Handler / Electrical Heat) (Single-Phase) . 11
Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Heat Pump Main Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Defrost Operation Curves (Variables - Defrost Active Variable) . . . . 25
Wiring Diagram - Single Phase (Demand Defrost) . . . . . . . . . . . . . . 28
LIST OF TABLES
Minimum / Maximum Operating Limit Conditions . . . . . . . . . . . . . . . . .3
Allowable Vertical Linesets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
TEST Input Functionality with Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
TEST Input Functionality without Y . . . . . . . . . . . . . . . . . . . . . . . . . .14
Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Operational Mode Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Fault Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
High Pressure Switch (HPS) Fault . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Compressor Inverter Drive Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Outdoor Fan Motor Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Compressor Control Protection Fault . . . . . . . . . . . . . . . . . . . . . . . . 23
Miscellaneous Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SECTION I: GENERAL
The outdoor units are designed to be connected to a matching indoor
coil with sweat connect lines. Sweat connect units are factory charged
with refrigerant for a nominal sized matching indoor coil plus 15 feet of
field-supplied lines.
Matching indoor coils can be used with a thermostatic expansion valve
(TXV). Refer to the Tabular Data Sheet or to the Technical Guide for
the proper selection.
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
.
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.
WARNING
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. Refer to this manual for assis-
tance or for additional information, consult a qualified contractor,
installer or service agency.
CAUTION
This product must be installed in strict compliance with the enclosed
installation instructions and any applicable local, state, and national
codes including, but not limited to building, electrical, and mechanical
codes.
CAUTION
R-410A systems operate at higher pressures than R-22 systems. Do
not use R-22 service equipment or components on R-410A equip-
ment. Service equipment
Must Be Rated
for R-410A.
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