Johnson Controls YXV SERIES Installation Manual

INSTALLATION MANUAL

R-410A VARIABLE CAPACITY
OUTDOOR SPLIT-SYSTEM

AIR CONDITIONING

MODELS: 20 SEER
YXV, AC21, AL21 SERIES
2 - 5 TONS - 1 PHASE
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Typical Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Alternative Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation of Vapor Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Outdoor Unit Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Typical Communicating Field Wiring (Air Handler / Furnace) . . . . . . .7
Demand Response Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Minimum / Maximum Operating Limit Conditions . . . . . . . . . . . . . . . . .2
Allowable Vertical Linesets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
TEST Mode Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Same Priority Fault Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Outdoor Display Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
IMPORTANT
It is recommended before starting the system to connect the
thermostat to Wi-Fi using a local network or portable hot-spot
so the thermostat and system receive the latest software
updates to optimize system performance.
CAUTION
!
The EEV is factory installed but shipped in the closed position.
Prior to any brazing, power must be applied to the Indoor Unit. If
installing a coil furnace match or multi-piece air handler system,
the EEV harness must be plugged into the Comm port prior to
applying power to the indoor unit. Allow
open to allow proper nitrogen flow through the coil and lineset. If
you are not able to power the indoor unit before brazing the line
set, a tool to manually open the EEV is available through Source
1 under part number S1-02649686000.
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.
Johnson Controls Unitary Products
LIST OF SECTIONS
LIST OF FIGURES
LIST OF TABLES
1 minute for the EEV to
®
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
OUTDOOR SCREEN OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 10
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
CHARGING CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
System Charging Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Main Outdoor Control and Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Outdoor Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Ton Inverter Drive LED Location . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 & 4 Ton Inverter Drive LED Location . . . . . . . . . . . . . . . . . . . . . . . 19
5 Ton Inverter Drive LED Location . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Wiring Diagram - 2 Ton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Wiring Diagram - 3-5 Ton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Outdoor Control Faults/Status Code Display . . . . . . . . . . . . . . . . . . 12
Inverter Drive Fault/Status Code Display . . . . . . . . . . . . . . . . . . . . . 16
Thermistor Resistance vs Temperature Table . . . . . . . . . . . . . . . . . 21
Sensor Connector Pin Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Low Suction Pressure Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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 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.
5284792-UIM-D-1017