Johnson Controls 15 SEER - YZE / HC5B / HL5B SERIES Installation Manual

INSTALLATION MANUAL
R-410A
OUTDOOR SPLIT-SYSTEM
HEAT PUMP
MODELS: 15 SEER - YZE / HC5B / HL5B SERIES
2 TO 5 TONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
INSTALLATIONS REQUIRING TXV . . . . . . . . . . . . . . . . . . . . . . . . . .5
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Typical Installation with Required Clearances . . . . . . . . . . . . . . . . . . .3
Tubing Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Typical Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Communications Harness Connection . . . . . . . . . . . . . . . . . . . . . . . . .6
CFM Selection Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Communicating HP with Communicating Air Handler or Furnace . . . .7
Communicating HP with Non-Communicating Air Handler
or Furnace using Communicating Interface Control . . . . . . . . . . . . . . .7
Thermostat Wiring - Two-Stage Heat Pumps -
Two-Stage Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . .8
Defrost Initiate Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
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 matching indoor coil plus 15 feet of field supplied
lines.
Matching indoor coils are available with a thermal expansion valve or
an orifice liquid feed sized for the most common usage. The orifice size
and/or refrigerant charge may need to be changed for some indoor-out-
door unit combinations, elevation differences or total line lengths. Refer
to Application Data covering "General Piping Recommendations and
Refrigerant Line Length" (Part Number 036-61920-001).
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.

TABLE OF CONTENTS

EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LIST OF FIGURES
Thermostat Wiring - Two-Stage Heat Pump -
Two-Stage Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermostat Wiring - Two-Stage Heat Pump -
Variable Speed Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Thermostat Wiring - Two-Stage Heat Pump -
Variable Speed Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermostat Wiring - Two-Stage Heat Pump -
Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . . . . 12
Thermostat Wiring - Two-Stage Heat Pump -
Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . . . . 13
Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Wiring Diagram 16
LIST OF TABLES
R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
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.
R-410A systems operate at higher pressures than R-22 systems.
Do not use R-22 service equipment or components on R-410A
equipment. Service equipment
ISO 9001
Certified Quality
Management System
Must Be Rated
for R-410A.
501054-UIM-A-0909