Johnson Controls YCD Series User manual

Johnson Controls Ducted Systems 6074816-UIM-A-0421
R-410A OUTDOOR SPLIT-SYSTEM
AIR CONDITIONING
MODELS: 13, 14, AND 17 SEER
YCD, YCE, YCG, YCS, YFD, YFE, TC3, TC4, TC7,
CC7, TW4, TF3, TF4, TCD, TCG, RAC13L, RAC14L,
RAC17L, RAW14L, RAC13F, RAC14F SERIES
INSTALLATION MANUAL
®
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COIL METERING DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
INSTRUCTING THE USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
START-UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
LIST OF FIGURES
Typical Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Alternative Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation of Vapor Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended Distributor Adjustment . . . . . . . . . . . . . . . . . . . . . . . 6
Piston Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TXV Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TXV Bulb and Equalizer line Installations . . . . . . . . . . . . . . . . . . . . . 7
Correct Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Vertical Temperature Bulb Orientation . . . . . . . . . . . . . . . . . . . . . . . . 8
Outdoor Unit Swing Away Control Box . . . . . . . . . . . . . . . . . . . . . . 10
Outdoor Unit Control Box (Single Phase - Smaller Base) . . . . . . . . 11
Outdoor Unit Control Box (Single Phase - Larger Base) . . . . . . . . .11
Outdoor Unit Control Box (Three Phase) . . . . . . . . . . . . . . . . . . . . .11
Typical Field Wiring (Air Handler / Electrical Heat) (Single-Phase) .12
Typical Field Wiring (Air Handler / Electrical Heat) (Three-Phase) . .12
Thermostat Chart - PSC Air Handler with Single Stage
Air Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Thermostat Chart - Single Stage PSC Furnace with Single Stage
Air Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Wiring Diagram - Single Phase 13 SEER and 14 SEER . . . . . . . . .14
Wiring Diagram - Single Phase 17 SEER . . . . . . . . . . . . . . . . . . . . .15
Wiring Diagram - Three Phase 13 SEER . . . . . . . . . . . . . . . . . . . . .16
Wiring Diagram - Three Phase 17 SEER . . . . . . . . . . . . . . . . . . . . .17
LIST OF TABLES
Application Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
SECTION I: GENERAL
These outdoor condensing units are designed to be connected to a
matching indoor coil. They are equipped with a filter-drier located in the
liquid line.
Units with quick-connect coupling connections are factory charged with
refrigerant to be matched with the appropriate pre-charged line set and
indoor coil.
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.
!
!
!

6074816-UIM-A-0421
2 Johnson Controls Ducted Systems
INSPECTION
As soon as a unit is received, you must inspect it for possible damage
during transit. If damage is evident, you must note the extent of the
damage on the carrier’s delivery receipt. Aseparate request for inspec-
tion by the carrier’s agent must be made in writing. See Local Distribu-
tor for more information.
Requirements for installing or servicing R-410A equipment
• Gauge sets, hoses, refrigerant containers, and the recovery sys-
tem must be designed to handle the POE type oils and the higher
pressures of R-410A.
• Manifold sets must be high side and low side with low side retard.
• All hoses must have a 700-psig service pressure rating.
• Leak detectors must be designed to detect HFC refrigerant.
• Recovery equipment (including refrigerant recovery containers)
must be specifically designed to handle R-410A.
• Do not use an R-22 TXV.
LIMITATIONS
You must install the unit in accordance with all national, state, and local
safety codes, and the following limitations:
1. Limitations for the indoor unit, coil, and appropriate accessories
must also be observed.
2. The outdoor unit must not be installed with any duct work in the air
stream. The outdoor fan is the propeller type and is not designed to
operate against any additional external static pressure.
3. The maximum and minimum conditions for operation must be
observed to ensure a system that gives maximum performance with
minimum service.
4. The unit must not be operated at outdoor temperatures below 55°F
without an approved low ambient operation accessory kit installed.
5. The maximum allowable line length for this product is 80 ft. To
install more than the maximum allowable line length, consult the
Piping Application Guide (P/N 247077).
SECTION III: UNIT INSTALLATION
LOCATION
Before starting the installation, select and check the suitability of the
location for both the indoor and outdoor unit. Observe all limitations and
clearance requirements.
The outdoor unit must have sufficient clearance for air entrance to the
condenser coil, air discharge, and service access. See Figures 1 and 2.
If the unit is to be installed on a hot sun-exposed roof or a paved ground
area that is seasonally hot, the unit must be raised sufficiently above
the roof or ground to avoid taking the accumulated layer of hot air into
the outdoor unit.
If the system is being installed during seasonally cold weather of 55°F
or below, the preferred method is to weigh in the charge. For charging
or checking the system charge at 55°F or below, see the Optional Cold
Weather Charging procedures near the end of Section VI: System
Charge. There is an Optional Cold Weather Charging accessory kit to
prevent the outdoor unit from taking in cold air below 55°F. The kit part
number can be found in the list of accessory kits at
www.simplygettingthejobdone.com.
Provide adequate structural support for the unit.
ADD-ON REPLACEMENT OR RETROFIT
When using this unit as a replacement for an R-410A unit, you must
replace the outdoor unit, indoor coil, and metering device. The following
steps must be performed in order to insure correct system operation
and performance. Line set change out is also recommended.
1. Change out the indoor coil to an approved R-410A coil and con-
densing unit combination with the appropriate metering device.
2. Change out the line set when replacing an R-22 unit with an R410-
A unit to reduce cross-contamination of oils and refrigerants. If
change-out of the line set is not practical, then the following precau-
tions must be taken:
• Inspect the line set for kinks, sharp bends, or other restrictions,
and for corrosion.
• Determine if there are any low spots which might be serving as oil
traps.
• Flush the line set with a commercially available flush kit to
remove as much of the existing oil and contaminants as possible.
• Install a suction line filter-drier to trap any remaining contami-
nants and remove after 50 h of operation.
If replacing the outdoor unit due to a compressor burnout, then installa-
tion of a 100% activated alumina suction-line filter-drier in the suction-
line is required, in addition to the factory installed liquid-line drier. Install
the suction-line filter-drier by completing the following steps:
1. Operate the system for 10 h and monitor the suction drier pressure
drop. If the pressure drop exceeds 3 psig, replace both the suction-
line and liquid-line driers.
2. After a total of 10 h run time where the suction-line pressure drop
has not exceeded 3 psig, replace the liquid-line drier and remove
the suction-line drier. Never leave a suction-line drier in the system
longer than 50 h of run time.
Table 1: Application Limitations
Ambient Air
Temperature on
Outdoor Coil (°F)
Air Temperature
on
Indoor Coil (°F)
MODEL Minimum
DB Maximum DB Minimum WB Maximum WB
YCD/TC3/RAC13L 55 115 57 72
YCS/YFE/YCE/TW4/
TF4/TC4/RAC14L/
RAW14L/RAC14F/
YCG/TC7/CC7/RAC17L
55 125 57 72
NOTICE
For multiple unit installations, units must be spaced a minimum of
24 in. (61 cm) apart (coil face to coil face).

6074816-UIM-A-0421
Johnson Controls Ducted Systems 3
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6074816-UIM-A-0421
4 Johnson Controls Ducted Systems
GROUND INSTALLATION
The unit must be installed on a solid base that is 2 in. (5.1 cm) above
grade and will not shift or settle, causing strain on the refrigerant lines
and possible leaks. Maintain the clearances shown in Figures 1 and 2
and install the unit in a level position. The base pad must not come in
contact with the foundation or side of the structure because sound may
be transmitted to the residence.
The length of the refrigerant tubing between the outdoor unit and indoor
coil must be as short as possible to avoid capacity and efficiency
losses. Excessive spacing of the outdoor unit from the home can result
in the refrigerant lines being restricted by trampling or being punctured
by lawn mowers. Locate the outdoor unit away from bedroom windows
or other rooms where sound might be objectionable.
Adverse effects of snow or sleet accumulating on the outdoor coil can
be eliminated by placing the outdoor unit where the prevailing wind
does not blow across the unit. Trees, shrubs, corners of buildings, and
fences standing off from the coil can reduce capacity loss due to wind
chill effect.
Provide ample clearance from shrubs to allow adequate air to pass
across the outdoor coil without leaves or branches being pulled into the
coil.
ROOF INSTALLATION
When installing units on a roof, the structure must be capable of sup-
porting the total weight of the unit, including a pad, lintels, rails or any
components used to minimize the transmission of sound or vibration
into the conditioned space.
WALL MOUNT INSTALLATION
Care must be taken to mount the outdoor unit on a solid base that is
sloped to shed water, secure from settlement, and is isolated from the
structural foundation or walls to prevent sound and vibration transmis-
sion into the living space.
On occasion, site conditions may require direct wall mounted brackets
to be used to locate and support the outdoor unit. In these applications,
care must be taken to address unit base pan support, structural integ-
rity, safe access and serviceability, as well as the possible sound and
vibration transmission into the structure. These applications are best
served by a correctly engineered solution.
LIQUID LINE FILTER-DRIER
The air conditioning unit’s filter-drier is located inside the unit on the liq-
uid line between the outdoor coil and the liquid valve.
PIPING CONNECTIONS
The outdoor condensing unit must be connected to the indoor evapora-
tor coil using field supplied refrigerant grade (ACR) copper tubing that is
internally clean and dry. Units must be installed only with the tubing
sizes for approved system combinations as specified in the Tabular
Data Sheet. The charge given is applicable for total tubing lengths up to
15 ft (4.6 m). Refer to the Piping Application Guide (P/N 24077) for
installing tubing of longer lengths and elevation differences.
PRECAUTIONS DURING LINE INSTALLATION
1. Install the lines with as few bends as possible. Care must be taken
not to damage the couplings or kink the tubing. Use clean hard
drawn copper tubing where no appreciable amount of bending
around obstruction is necessary. If soft copper must be used, care
must be taken to avoid sharp bends, which may cause a restriction.
2. The lines must be installed so that they do not obstruct service
access to the coil, air handling system, or filter.
3. Care must also be taken to isolate the refrigerant lines to minimize
noise transmission from the equipment to the structure.
4. The vapor line must be insulated with a minimum of 1/2-in. foam
rubber insulation (Armaflex or equivalent). Liquid lines that are
exposed to direct sunlight, high temperatures, or excessive humid-
ity must also be insulated.
5. Tape and suspend the refrigerant lines as shown in Figure 3. Do not
allow tube metal-to-metal contact.
6. Use PVC piping as a conduit for all underground installations as
shown in Figure 4. Buried lines must be kept as short as possible to
minimize the build up of liquid refrigerant in the vapor line during
long periods of shutdown.
7. Pack fiberglass insulation and a sealing material such as perma-
gum around refrigerant lines where they penetrate a wall to reduce
vibration and to retain some flexibility.
8. For systems with total line length exceeding 75 ft (22.86 m), refer to
the Piping Application Guide (P/N 24077) for vapor and liquid line
sizing, calibration of liquid line pressure loss or gain, determination
of vapor line velocity, elevation limitations, TXV connections, sys-
tem charging or traps.
CAUTION
Using a granular type drier may result in damage to the equipment.
Filter-Drier Source 1 Part No. Apply with Models
S1-401021 All
!
NOTICE
Using a larger than specified line size could result in oil return prob-
lems. Using too small a line will result in loss of capacity and other
problems caused by insufficient refrigerant flow. Slope horizontal
vapor lines at least 1 in. (2.5 cm) every 20 ft (6.1 m) toward the out-
door unit to facilitate proper oil return. If more than the 80-ft line length
is necessary, facilitate proper refrigerant velocity with adjusted line
diameter in accordance with the Piping Application Guide (P/N
24077).
CAUTION
This system uses R-410A refrigerant, which operates at higher pres-
sures than R-22. No other refrigerant may be used in this system.
Gauge sets, hoses, refrigerant containers, and the recovery system
must be designed to handle R-410A. If you are unsure, consult the
equipment manufacturer.
WARNING
Never install a suction-line filter-drier in the liquid line of an R-410A
system. Failure to follow this warning can cause a fire, injury or death.
Figure 3: Installation of Vapor Line
!
!
Liquid
Line
Incorrect
Correct Tape
Sheet Metal Hanger
Insulated Vapor Line
A0151-001

6074816-UIM-A-0421
Johnson Controls Ducted Systems 5
PRECAUTIONS DURING BRAZING OF LINES
All outdoor unit and evaporator coil connections are copper-to-copper
and must be brazed with a phosphorous-copper alloy material such as
Silfos-5 or equivalent. Do not use soft solder. The outdoor units have
reusable service valves on both the liquid and vapor connections. The
total system refrigerant charge is retained within the outdoor unit during
shipping and installation. The reusable service valves are provided to
evacuate and charge per this instruction.
Serious service problems can be avoided by taking adequate precau-
tions to assure an internally clean and dry system.
PRECAUTIONS DURING BRAZING SERVICE VALVE
Precautions must be taken to prevent heat damage to service valve by
wrapping a wet rag around it as shown in Figure 5. Protect all painted
surfaces, insulation, and the plastic base during brazing. After brazing,
cool the joint with a wet rag.
Open the valve by removing the service valve cap, fully inserting a hex
wrench into the stem, and backing out counterclockwise until the valve
stem just touches the chamfered retaining wall.
Connect the refrigerant lines using the following procedure:
1. Remove the cap and Schrader core from both the liquid and vapor
service valve service ports at the outdoor unit. Connect low pres-
sure nitrogen to the liquid line service port.
2. Braze the liquid line to the liquid valve at the outdoor unit. Be sure
to wrap the valve body with a wet rag. Allow the nitrogen to con-
tinue flowing.
3. Carefully remove the plugs from the indoor coil liquid and vapor
connections at the indoor coil.
4. Braze the liquid line to the indoor coil liquid connection. Nitrogen
must be flowing through the indoor coil.
5. Slide the grommet away from the vapor connection at the indoor
coil. Braze the vapor line to the evaporator vapor connection. After
the connection has cooled, slide the grommet back into original
position.
6. Protect the vapor valve with a wet rag and braze the vapor line con-
nection to the outdoor unit. The nitrogen flow must be exiting the
system from the vapor service port connection. After this connec-
tion cools, remove the nitrogen source from the liquid fitting service
port.
7. Replace the Schrader core in the liquid and vapor valves.
8. Go to SECTION IV for TXV installation.
9. Leak test all refrigerant piping connections, including the service
port flare caps, to be sure they are leak tight. Do not over-tighten
(between 40 in. lb and 60 in. lb maximum).
10. Evacuate the vapor line, indoor coil, and liquid line to 500 microns
or less.
11. Replace cap on service ports. Do not remove the flare caps from
the service ports except when necessary for servicing the system.
Figure 4: Underground Installation
CAUTION
Dry nitrogen must always be supplied through the tubing while it is
being brazed, because the temperature required is high enough to
cause oxidation of the copper unless an inert atmosphere is provided.
The flow of dry nitrogen must continue until the joint has cooled.
Always use a pressure regulator and safety valve to insure that only
low pressure dry nitrogen is introduced into the tubing. Only a small
flow is necessary to displace air and prevent oxidation.
WARNING
This is not a backseating valve. The service access port has a valve
core. Opening or closing valve does not close service access port.
If the valve stem is backed out past the chamfered retaining wall, the
O-ring can be damaged causing leakage or system pressure could
force the valve stem out of the valve body possibly causing personal
injury.
TO INDOOR COIL
TO
O UT DO
OR
U
NI T
LIQUID LIN
E
CAP
PVC
COND
U
IT
IN
SULA
TE D
VAPOR LINE
A0152-001
!
!
Figure 5: Heat Protection
CAUTION
Do not install any coil in a furnace which is to be operated during the
heating season without attaching the refrigerant lines to the coil. The
coil is under pressure which must be released to prevent excessive
pressure build-up and possible coil damage.
NOTICE
Line set and indoor coil can be pressurized to 250 psig with dry nitro-
gen and leak tested with a bubble type leak detector. Then release
the nitrogen charge.
Do not use the system refrigerant in the outdoor unit to purge or leak
test.
CAUTION
Do not connect manifold gauges unless trouble is suspected. Approx-
imately 3/4 oz of refrigerant is lost each time a standard manifold
gauge is connected.
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6074816-UIM-A-0421
6 Johnson Controls Ducted Systems
12. Release the refrigerant charge into the system. Open both the liq-
uid and vapor valves by removing the plunger cap and with an hex
wrench, back out counterclockwise until the valve stem just touches
the chamfered retaining wall. If the service valve is a ball valve, use
a adjustable wrench to turn the valve stem 1/4 turn counterclock-
wise to open. Do not overturn or the valve stem may break or
become damaged. See Precautions during brazing service valve.
13. Replace the plunger cap finger tight, then tighten an additional 1/12
turn (1/2 hex flat). The cap must be replaced to prevent leaks.
See System charge for checking and recording system charge.
SECTION IV: COIL METERING DEVICES
A piston or a TXV is to be installed in the field. There is an installation
manual that comes with the TXV kit. Install the piston or TXV kit before
installing the coil and brazing the line set. Until brazing is completed
and cooled, the TXV sensing bulb must not be installed.
Refer to the outdoor technical guide for outdoor units for the required
piston or TXV on the indoor coil. The piston and the Schrader core are
supplied with the outdoor unit. When using the piston instead of the
TXV, the Schrader core is installed in the suction-line equalizer connec-
tion port and is capped with the supplied plastic cap. The Schrader core
must not be installed if the TXV is installed, because the TXV equalizer
line attaches to the equalizer connection port.
PISTON INSTALLATION
Install Schrader Valve Core and Piston as follows:
1. After the holding charge is completely discharged, remove the
black plastic cap from the equalizer connection port on the vertical
part of the vapor line.
2. Adjust the distributor position to allow the preformed liquid line
assembly to correctly line up with the hole in the tubing access
panel. Raise the distributor body approximately 2 in. toward the top
of the coil or what would be the top of the coil if the coil was in the
upflow position. See Figure 6 and adjust as necessary.
3. Install the Schrader valve core supplied with the outdoor unit into
the equalizer fitting connection port using a valve core tool.
4. Loosen and remove the liquid line connection nut and the sealing
disc from the distributor assembly. Note that the fitting has right-
hand threads.
5. Slide the nut over the liquid line to be installed and discard the seal
disc.
6. Install the required size piston into the distributor. Refer to the Tabu-
lar Data Sheet for the specific piston size and indoor coil match up.
7. Verify that the PTFE washer is still in place in the distributor open-
ing. See Figure 7.
8. After installing the piston, install the liquid line to the top of the pis-
ton or distributor assembly. Hand tighten and turn an additional 1/4
turn to seal. Do not over-tighten the fittings.
9. Replace the black plastic cap on the unused equalizer fitting con-
nection port.
10. After installing the line set, leak test the system.
WARNING
Never attempt to repair any brazed connections while the system is
under pressure. Personal injury could result.
CAUTION
COIL UNDER PRESSURE.
Verify that pressure has been released by depressing the Schrader
valve core.
The coil requires a metering device to be added.
Refer to the outdoor unit documentation for the correct TXV or piston
to be used.
NOTICE
To prevent moisture and contaminates from entering the system, the
coil must not be open to atmosphere for extended periods of time. If
the coil cannot be brazed into the refrigeration system during a rou-
tine installation period, the ends must be temporarily closed or
plugged. For a short term delay, use masking tape over the ends of
the copper tubing to close the tube from the air. For a longer term
delay, use plugs or caps. There is no need to purge the coil if this pro-
cedure is followed.
WARNING
Failure to install the Schrader Valve Core in the vapor line equalizer
connection port for piston applications could result in total refrigerant
loss of the system.
!
!
!
Figure 6: Recommended Distributor Adjustment
Figure 7: Piston Installation
CAUTION
Do not over-tighten. Do not use slip joint pliers. This distorts the alu-
minum distributor and the brass fitting (potentially causing leaks).
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6074816-UIM-A-0421
Johnson Controls Ducted Systems 7
THERMOSTATIC EXPANSION VALVE (TXV)
INSTALLATION
The following are basic steps for installation. For detailed instructions,
refer to the TXV kit Installation Manual. Install the TXV as follows:
1. Relieve the holding charge by depressing the Schrader core on the
suction manifold stub out.
2. After the holding charge is completely discharged, loosen and
remove the Schrader core.
3. Place a backup wrench on the distributor, then loosen and remove
the brass distributor nut. Retain the brass nut for use on the liquid
line. Keep the PTFE washer in place and discard the clear disk.
4. Install the thermal expansion valve to the distributor assembly with
the supplied fittings. Ensure the PTFE washer is seated in the dis-
tributor. Hand tighten and turn an additional 1/4 turn to seal. Do not
over-tighten the fittings. See Figure 8.
5. Slide the nut removed in Step 3 over the supplied liquid line. Place
the supplied PTFE washer from the TXV kit on the TXV, and install
the liquid line to the top of the thermal expansion valve. Adjust the
assembly so the liquid line aligns with the hole in the access panel.
See Figure 9. Hand tighten the liquid line and apply an additional
1/4 turn to seal.
6. Install the TXV equalizer line onto the vapor line by hand tightening
the 1/4-in. SAE coupling nut to the equalizer fitting and apply an
additional 1/3 turn to seal. See Figures 9, 10, and 11.
7. Pass the temperature sensing bulb tube for the TXV through the
tube opening in the split grommet of the access panel.
8. Install the TXV bulb to the vapor line near the cabinet, using the
bulb clamps furnished with the TXV assembly. Ensure the bulb
makes maximum contact. See Figures 9, 10 and 11, and do the fol-
lowing:
a. If possible, install the temperature bulb on a horizontal run of the
vapor line. Ensure that the bulb is installed at a 10 o’clock or 2
o’clock position. See Figure 10.
b. If bulb installation is made on a vertical run, ensure that the bulb
is a minimum of 8 in. (20.3 cm) away from the elbow coming out
of the coil. Position the bulb with the tail of the bulb at the top, so
that the bulb acts as a reservoir. See Figure 11.
c. Insulate the bulb using the thermal insulation provided to protect
it from the effect of the surrounding ambient temperature. Cover
completely to insulate.
9. After the line set is installed, leak test the system.
CAUTION
Outdoor unit model numbers ending with an H have a factory installed
hard start kit which is required when a TXV kit is installed. Outdoor
unit model numbers with no H ending do not require a hard start kit
unless local regulations dictate it.
IMPORTANT: Refer to the Technical Guide for the unit to determine
the proper TXV to be used on this product.
CAUTION
Do not over-tighten. Do not use slip joint pliers. This distorts the alu-
minum distributor and the brass fitting (potentially causing leaks).
Figure 8: TXV Installation
WARNING
The Schrader valve core must not be installed with TXV installation.
Poor system performance or system failure could result.
!
!
TXV / DISTRIBUTOR COUPLING
LIQUID LINE / TXV COUPLING
PTFE WASHER
TXV
PTFE WASHER
DISTRIBUTOR
A0281-003
!
CAUTION
In all cases, mount the TXV temperature sensing bulb after the vapor
line is brazed and sufficiently cooled.
Failure to use a suction-line split grommet may result in TXV failure.
Figure 9: TXV Bulb and Equalizer line Installations
Figure 10: Correct Bulb Location
!
TXV BULB
(Wrap with
insulation.)
VAPOR LINE
LIQUID LINE
TVX
EQUALIZER
LINE
THERMAL EXPANSION
VALVE
(
TXV
)
DISTRIBUTOR
BODY
A0279-002
TXV BULB
(Cover completely
with insulation.)
VAPOR LINE
OF LINE SET
A0269-002
CLAMP
A
DETAIL A
TXV SENSING BULB
(Pass through split hole
in grommet.)
VAPOR
LINE
NUT
NUT
Bulb at
10 o’clock
position.
Bulb at
2 o’clock
position.
SCREW
SCREW
CLAMP

6074816-UIM-A-0421
8 Johnson Controls Ducted Systems
SECTION V: EVACUATION
It is necessary to evacuate the system to 500 microns or less. If a leak
is suspected, leak test with dry nitrogen to locate the leak. Repair the
leak and test again.
To verify that the system has no leaks, close the valve to the vacuum
pump suction to isolate the pump and hold the system under vacuum.
Watch the micron gauge for a few minutes. If the micron gauge indi-
cates a steady and continuous rise, it’s an indication of a leak. If the
gauge shows a rise, then levels off after a few minutes and remains
fairly constant, it’s an indication that the system is leak free but still con-
tains moisture and may require further evacuation if the reading is
above 500 microns.
SECTION VI: SYSTEM CHARGE
To ensure that your unit performs at the published levels, it is important
that the indoor airflow is determined and refrigerant charge is added
accordingly.
MEASURING INDOOR AIRFLOW
To determine rated airflow for a specific match, consult the technical lit-
erature at www.simplygettingthejobdone.com. When attempting to
match this airflow, select the lowest possible speed tap, measure the
actual airflow, and adjust as necessary.
To measure actual airflow, it is not an acceptable method to just
check the jumper pin setting tables and to assume 0.5 in. W.C.
total external static pressure.
To determine indoor airflow, first measure the static pressure with a
manometer between the filter and blower. On a single-piece air handler,
take a second reading after the coil. On a furnace or modular air han-
dler, take the second reading after the heat exchanger but before the
indoor coil. Add the negative return static to the positive supply static to
determine the system total static pressure. Treat the negative return
static as a positive pressure (even though it is a negative reading). If
there is static pressure on the blower return (-0.1), add it to a supply
static (0.4) which equals a (0.5) total system static pressure. Compare
this value to the table for the indoor unit's static pressure against CFM
or to a curve chart.
SYSTEM CHARGING
The factory charge in the outdoor unit includes enough charge for the
unit, a 15 ft (4.6 m) line set, and the smallest indoor coil match-up.
Some indoor coil matches may require additional charge. Refer to the
Tabular Data Sheet for charge requirements.
The total system charge must be permanently stamped on the unit data
plate.
Total system charge is determined as follows:
1. Determine the base charge shipped in the outdoor unit by referring
to the Tabular Data Sheet included with the outdoor unit.
2. Determine the charge adder for the matched indoor unit by referring
to the Tabular Data Sheet.
3. If the line set length is greater than 15 ft (4.6 m), calculate the
charge adder for actual line set length by referring to the Tabular
Data Sheet.
4. Once the charge adders for the matched indoor unit and for the line
set have been weighed in, verify the system operation against the
temperatures and pressures in the charging chart for the outdoor
unit. Refer to the Charging Charts on the outdoor unit or in the Ser-
vice Application Data on www.simplygettingthejobdone.com. Follow
the subcool or the superheat charging procedure in this section
according to the type of indoor metering device in the system, and
allow 10 min after each charge adjustment for the system operation
to stabilize. Record the charge adjustment made to match the
charging chart.
5. Verify that total system charge = base charge (as shipped) + charge
adder for matched indoor unit + charge adder for actual line set
length + charge adjustments to match the charging chart.
6. Permanently stamp the unit data plate with the total system charge
as defined in these instructions.
Use this method whenever additional refrigerant is required for the sys-
tem charge.
Figure 11: Vertical Temperature Bulb Orientation
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NOTICE
For cold weather charging of the system at temperatures of 55°F or
below, see the Optional Cold Weather Charging procedures near the
end of SECTION VI: SYSTEM CHARGE.
CAUTION
R-410A refrigerant cylinders are rose colored.Always charge the
system slowly with liquid R-410 refrigerant.
CAUTION
Do not leave the system open to the atmosphere.
WARNING
Do not attempt to pump the total system charge into the outdoor unit
for maintenance or service. This may cause damage to the compres-
sor or other components. Recover and weigh the system charge into
an appropriate recovery cylinder for any instances requiring evacua-
tion.
WARNING
Do not attempt to pump more than the factory charge and an addi-
tional 15-ft line charge into a tube and fin outdoor unit for mainte-
nance or service. This can cause damage to the compressor or other
components.
CAUTION
Refrigerant charging must only be carried out by a qualified air condi-
tioning contractor.
!
!
!
!
!

6074816-UIM-A-0421
Johnson Controls Ducted Systems 9
If a calibrated charging cylinder or accurate weighing device is avail-
able, add refrigerant accordingly. Otherwise, model-specific charging
charts are provided on the access panel of the unit.
SUBCOOLING CHARGING METHOD - TXV INDOOR
The outdoor unit comes equipped with subcooling charts optimized for
that particular unit. Follow the instructions on the unit. If those instruc-
tions are not readily available, follow the instructions below.
1. Set the system running in cooling mode by setting the thermostat at
least 6°F below the room temperature and operate system for at
least 10 min to 15 min.
2. Refer to the Technical Guide for the recommended indoor airflow
and verify it is correct (it must be between 350 SCFM/ton and
400 SCFM/ton).
3. Measure and record the indoor wet bulb (WB) and the outdoor
ambient dry bulb (DB) temperature.
4. Using the charging chart located on the unit, find the intersection of
the indoor wet bulb and the outdoor dry bulb. This is the recom-
mended liquid pressure (and subcooling value).
5. Measure and record the pressure at the liquid valve pressure port
and compare to the value obtained in step 4.
6. Add charge if the measured liquid pressure is lower than the recom-
mended value. Remove or recover the charge if the measured liq-
uid pressure is above the recommended value.
Condenser subcooling is obtained by calculating the difference of the
saturated refrigerant temperature of the pressure measured at the liquid
base valve and the liquid tube temperature as measured at the liquid
base valve.
Subcooling Saturated Liquid
Temperature (TC) = Temperature (TS) – Temperature (T)
SUPERHEAT CHARGING METHOD - PISTON INDOOR
1. Set the system running in cooling mode by setting the thermostat at
least 6°F below the room temperature and operate the system for
at least 10 min to 15 min.
2. Refer to the Technical Guide for the recommended indoor airflow
and verify it is correct (it must be between 350 SCFM/ton and
400 SCFM/ton)
3. Measure and record the outdoor ambient (DB) temperature and the
suction pressure at the suction service valve.
4. Using the charging chart located on the unit, find the intersection of
the outdoor ambient dry bulb and the suction pressure obtained in
Step 3. This is the recommended suction tube temperature at the
service valve.
5. Measure and record the suction tube temperature at the service
valve and compare to the recommended temperature obtained in
Step 4.
6. Add charge if the measured suction temperature in Step 5 is above
the recommended value. Remove or recover the refrigerant if the
measured suction temperature is below the recommended value.
CAUTION
Compressor damage will occur if system is improperly charged. On
new system installations, charge system per tabular data sheet for
the matched coil and follow guidelines in this instruction.
Example: The liquid pressure listed at the intersection of the indoor
WB and the outdoor DB is 320 psig. The pressure at the liquid valve
is 305 psig. It is necessary to add refrigerant to increase the liquid
pressure to 320 psig.
!
CAUTION
It is unlawful to knowingly vent, release, or discharge refrigerant into
the open air during repair, service, maintenance, or the final disposal
of this unit.
Example: The suction tube temperature listed in the table at the
intersection of the outdoor DB and the suction pressure is 63°F.
The temperature of the suction tube at the service valve is 68°F. It is
necessary to add refrigerant to drop the suction tube temperature to
63°F.
!
Table 2: R-410A Saturation Properties
Temperature
(°F) Pressure (psig) Temperature (°F) Pressure (psig) Temperature (°F) Pressure (psig) Temperature (°F) Pressure (psig) Temperature (°F) Pressure (psig)
45 130 60 170 75 217 90 274 105 341
46 132 61 173 76 221 91 278 106 345
47 135 62 176 77 224 92 282 107 350
48 137 63 179 78 228 93 287 108 355
49 140 64 182 79 232 94 291 109 360
50 142 65 185 80 235 95 295 110 365
51 145 66 188 81 239 96 299 111 370
52 147 67 191 82 243 97 304 112 375
53 150 68 194 83 247 98 308 113 380
54 153 69 197 84 250 99 313 114 385
55 156 70 201 85 254 100 317 115 391
56 158 71 204 86 258 101 322 116 396
57 161 72 207 87 262 102 326. 117 401
58 164 73 211 88 266 103 331 118 407
59 167 74 214 89 270 104 336 119 412

6074816-UIM-A-0421
10 Johnson Controls Ducted Systems
OPTIONAL COLD WEATHER CHARGING
1. Assemble the charging tent.
2. Slide the charging tent over the top of the condenser unit.
3. Position the door zipper over the line set so the charging tent sits
evenly on the ground.
4. Make sure the distance around the condenser inside of the
charging tent is even for airflow.
5. Stake down the edges of the charging tent cover to prevent the unit
fan from blowing the charging tent away.
6. Start the condenser.
7. For better temperature measurement inside the charging tent, use
a thermocouple to monitor temperature readings. Locate the ther-
mocouple monitor approximately 8 in. to 10 in. away from the coil
guard and 2/3 of the way above the bottom of the coil on the oppo-
site side from the control box.
8. Based on the outdoor ambient temperature, begin adjusting win-
dows in order to achieve a stable temperature above 55°F inside
the tent. Note that the colder the outdoor ambient temperature is
the fewer windows need removal.
9. Use the condenser charging chart. Verify that the outdoor ambient
temperature listed on the charging chart is the temperature inside
the charging tent.
10. Carefully adjust the charging tent windows until reaching the
desired temperature, and allow the unit to stabilize for a minimum of
15 min. Check the thermocouple to make sure the temperature is
still maintained at the preferred temperature. If the temperature is
out of range, adjust the windows by opening or closing them.
11. When the condition inside the charging tent is stabilized, follow the
System Charge procedure to adjust charge in the unit.
12. Add or remove charge and adjust the windows to maintain the pre-
ferred temperature inside the tent.
SECTION VII: ELECTRICAL CONNECTIONS
GENERAL INFORMATION AND GROUNDING
The control box cover is held in place with three screws (one screw in
each lower corner and one screw at the top center post). The control
box can swing open by removing the screw from the center of each side
of the control box and allowing the control box to lower 1 in. or so into a
pivotal position.
The control box can then swing open from the left by rotating on the
right side pivots for easy service of refrigeration components. If no wir-
ing is in or routed through the control box, it can be removed from the
unit by lifting slightly, tilting the top hinge out, and lifting the bottom
hinge out. During the installation, route the low voltage wiring for the
thermostat along the unit whip to help facilitate the swing away feature
of the control box. See Figure 12.
Check the electrical supply to ensure it meets the values specified on
the unit nameplate and wiring label.
Power wiring, control (low voltage) wiring, disconnect switches, and
over current protection must be supplied by the installer. Wire size must
be sized following NEC requirements.
The complete connection diagram and schematic wiring label is located
on the inside surface of the unit service access panel.
FIELD CONNECTIONS POWER WIRING
1. Install the correct size weatherproof disconnect switch outdoors
and within sight of the unit.
2. Remove the screws at the top and sides of the corner cover. Slide
the control box cover down and remove from unit.
3. Run power wiring from the disconnect switch to the unit.
4. Route wires from disconnect through power wiring exit provided
and into the unit control box as shown in Figures 12, 13, 14, and 15.
5. Install the correct size time-delay fuses or circuit breaker, and make
the power supply connections.
NOTICE
For better airflow, the size of the charging tent must be at least 70 in.
x 70 in. x70 in. and must have some adjustable flaps or windows to
control the temperature inside the charging tent. The charging tent
must not have a floor or floor covering. Follow the System Charge
procedures from Section VI of this Installation Manual.
NOTICE
A flexible electrical whip must be installed in order to use the swing
away function of the control box. Other type electrical whips require
the wiring to be disconnected in order to swing the control box open.
Figure 12: Outdoor Unit Swing Away Control Box
CAUTION
All field wiring must only use copper conductors and be in accordance
with Local, National, Fire, Safety and Electrical Codes. This unit must
be grounded with a separate ground wire in accordance with the
above codes.
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6074816-UIM-A-0421
Johnson Controls Ducted Systems 11
FIELD CONNECTIONS CONTROL WIRING
1. Route low voltage wiring into bottom of control box as shown in Fig-
ure 13, 14, or 15. Make low voltage wiring connections inside the
low voltage box as shown in Figure 16.
2. The complete connection diagram and schematic wiring label is
located on the inside surface of the unit service access panel.
3. Replace the control box cover removed in Step 2 of the Field Con-
nections Power Wiring procedures.
4. All field wiring to be in accordance with national electrical codes
(NEC) or local city codes.
5. Mount the thermostat about 5 ft above the floor, where it is exposed
to normal room air circulation. Do not place it on an outside wall or
where it is exposed to the radiant effect from exposed glass or
appliances, drafts from outside doors or supply air grilles.
6. Route the 24-V control wiring (NEC Class 2) from the outdoor unit
to the indoor unit and thermostat.
Figure 13: Outdoor Unit Control Box (Single Phase - Smaller Base)
Figure 14: Outdoor Unit Control Box (Single Phase - Larger Base)
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Figure 15: Outdoor Unit Control Box (Three Phase)
NOTICE
A Start Assist Kit is available and recommended for long lineset appli-
cations or in areas of known low voltage problems. The kit may be
required when a TXV is used (refer to the Tabular Data Sheet to
determine if applicable).
NOTICE
To eliminate erratic operation, seal the hole in the wall at the thermo-
stat with permagum or equivalent to prevent air drafts affecting the
operation of in the thermostat.
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6074816-UIM-A-0421
12 Johnson Controls Ducted Systems
Figure 16: Typical Field Wiring (Air Handler / Electrical Heat) (Single-Phase)
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5(48,5('216<67(06
:,7++($7

Figure 17: Typical Field Wiring (Air Handler / Electrical Heat) (Three-Phase)
Figure 18: Thermostat Chart - PSC Air Handler with Single Stage Air Conditioner
$//),(/':,5,1*72%(,1$&&25'$1&(:,7+(/(&75,&&2'(1(&$1'25/2&$/&2'(6
32:(5:,5,1*
&217$&725
7(50,1$/6
&2,/
*1'
/8*
&<5*:
<5*:
32:(5:,5,1*
&21752/:,5,1*
)$&725<:,5,1*
92/7&21752/:,5,1*
0,1,080*$:,5(
1(&&/$66
)851$&(25$,5+$1'/(5
7(50,1$/%/2&.
52207+(50267$7
&21'(16,1*81,7
$//287'225:,5,1*0867%(:($7+(53522)86(&233(5&21'8&725621/<
7(50,1$/:,621/<
5(48,5('216<67(06
:,7++($7


$
$

6074816-UIM-A-0421
Johnson Controls Ducted Systems 13
SECTION VIII: INSTRUCTING THE USER
Assist the user with processing warranty cards or online registration.
Review the User’s Guide, and provide a copy to the user and guidance
on correct operation and maintenance. Instruct the user how to start,
stop, and adjust the temperature setting.
When applicable, instruct the user that the compressor is equipped with
a crankcase heater to prevent the migration of refrigerant to the com-
pressor during the OFF cycle. The heater is energized only when the
unit is not running. If the main switch is disconnected for long periods of
shut down, do not attempt to start the unit until 8 h after the switch has
been connected. This allows sufficient time for all liquid refrigerant to be
driven out of the compressor.
The installer must also instruct the user on correct operation and main-
tenance of all other system components.
MAINTENANCE
1. Do not allow dirt to accumulate on the outdoor coils or other parts in
the air circuit. Clean as often as necessary to keep the unit clean.
Use a brush, vacuum cleaner attachment, or other suitable means.
2. The outdoor fan motor is permanently lubricated and does not
require periodic oiling.
3. If the coil needs to be cleaned, use clean water to wash dust, dirt,
and debris from outdoor condensing coil.
4. Refer to the furnace or air handler instructions for filter and blower
motor maintenance.
5. The indoor coil and drain pan must be inspected and cleaned
regularly to prevent odors and assure proper drainage.
Figure 19: Thermostat Chart - Single Stage PSC Furnace with Single Stage Air Conditioner
$
NOTICE
Do not use coil cleaners to clean outdoor condensing coil. Cleaners
containing hydrogen fluoride (HF), hydroxides, chlorides, and sulfates
can greatly reduce the lifetime of the micro channel coil.
CAUTION
It is unlawful to knowingly vent, release, or discharge refrigerant into
the open air during repair, service, maintenance, or the final disposal
of this unit.
!

6074816-UIM-A-0421
14 Johnson Controls Ducted Systems
SECTION IX: WIRING DIAGRAMS
Figure 20: Wiring Diagram - Single Phase 13 SEER and 14 SEER
C
R
S
S
C
R
FAN
MOTOR
GND
5
2
1
C
HERM
FAN
HIGH VOLTAGE FACTORY WIRING
LOW VOLTAGE FACTORY WIRING
OPTIONAL WIRING
FIELD WIRING, LINE VOLTAGE
DUAL CAPACITOR
HPS
SR
SC
JUNCTION
BOX
TURN OFF ELECTRICAL POWER BEFORE
SERVICING TOPREVENT POSSIBLE DAMAGE
TO THE EQUIPMENT AND POSSIBLE
PERSONAL INJURY.
TO PREVENT ELECTRICAL SHOCK OPEN
REMOTE DISCONNECT SO ELECTRICAL
SUPPLY TO AIR CONDITIONER IS SHUT OFF.
COMPONENTS SHOWN IN DASHED
LINES ARE OPTIONAL.
DUAL CAPACITOR SHOWN SEPARATE
CAPACITORS MAY BE USED ON
ACTUAL UNIT.
WIRING MUST CONFORM TO
NATIONAL AND LOCAL CODES.
IF ANY OF THE ORIGINAL WIRE
SUPPLIED WITH THIS UNIT MUST BE
REPLACED, IT MUST BE REPLACED
WITH TYPE 105°C. THERMOPLASTIC
OR ITS EQUIVALENT.
WHERE POWER SUPPLY HAS ONE (1)
230 VOLT CONDUCTOR AND ONE (1)
NEUTRAL CONDUCTOR, CONNECT L2
OF CONTACTOR TO NEUTRAL.
GND.
24 VAC
CONTROL
CIRCUIT
(20 VA MIN.)
208-230 VAC 60 Hz 1 PHASE SUPPLY
220-240 VAC 50 Hz 1 PHASE SUPPLY
USE
COPPER
CONDUCTORS
ONLY
CONTACTOR
GND.
LUG
HS
CCH
HPS - HIGH PRESSURE SWITCH
LPS - LOW PRESSURE SWITCH
CCH - CRANKCASE HEATER
HS - HEATER SWITCH
SR - START RELAY
SC - START CAPACITOR
CC - CONTACTOR COIL
DANGER - SHOCK HAZARD
CAUTION
1
2
3
4
5
BLK
BLK
BLK
BRN
BLK
RED
RED
BRN
RED
RED
GRN
BRN
BRN
RED
YEL
RED
BLU
BLK
BLK
BLK
T1 T2
L1 L2
CC
COMPRESSOR
MOTOR
BLU
2
5
1
1
1
6074817-UWD-A-0221
LPS
1
BLU
YEL/PNK
OR YEL
YEL/PNK
OR YEL

6074816-UIM-A-0421
Johnson Controls Ducted Systems 15
Figure 21: Wiring Diagram - Single Phase 17 SEER
C
R
S
5
2
1
C
HERM
FAN
HIGH VOLTAGE FACTORY WIRING
LOW VOLTAGE FACTORY WIRING
OPTIONAL WIRING
FIELD WIRING, LINE VOLTAGE
DUAL CAPACITOR
HPS
SR
SC
JUNCTION
BOX
DANGER - SHOCK HAZARD
TURN OFF ELECTRICAL POWER BEFORE
SERVICING TO PREVENT POSSIBLE
DAMAGE TO THE EQUIPMENT AND
POSSIBLE PERSONAL INJURY.
CAUTION
TO PREVENT ELECTRICAL SHOCK OPEN
REMOTE DISCONNECT SO ELECTRICAL
SUPPLY TO AIR CONDITIONER IS SHUT OFF.
COMPONENTS SHOWN IN DASHED
LINES ARE OPTIONAL.
DUAL CAPACITOR SHOWN SEPARATE
CAPACITORS MAY BE USED ON
ACTUAL UNIT.
WIRING MUST CONFORM TO
NATIONAL AND LOCAL CODES.
IF ANY OF THE ORIGINAL WIRE
SUPPLIED WITH THIS UNIT MUST BE
REPLACED, IT MUST BE REPLACED
WITH TYPE 105°C. THERMOPLASTIC
OR ITS EQUIVALENT.
WHERE POWER SUPPLY HAS ONE (1)
230 VOLT CONDUCTOR AND ONE (1)
NEUTRAL CONDUCTOR, CONNECT L2
OF CONTACTOR TO NEUTRAL.
HPS - HIGH PRESSURE SWITCH
LPS - LOW PRESSURE SWITCH
CCH - CRANKCASE HEATER
HS - HEATER SWITCH
SR - START RELAY
SC - START CAPACITOR
CC - CONTACTOR COIL
GND.
24 VAC
CONTROL
CIRCUIT
(20 VA MIN.)
208-230 VAC 60 Hz 1 PHASE SUPPLY
220-240 VAC 50 Hz 1 PHASE SUPPLY
USE
COPPER
CONDUCTORS
ONLY
CONTACTOR
GND.
LUG
HS
CCH
1
2
3
4
5
BLK
BLK
BLK
BRN
RED
RED
BRN
RED
YEL
RED
BLU
BLK
BLK
BLK
T1 T2
L1 L2
CC
COMPRESSOR
MOTOR
BLU
2
5
1
1
1
6074818-UWD-A-0221
LPS
1
BLU
YEL/PNK
OR YEL
YEL/PNK
OR YEL
S
C
R
FAN MOTOR
6
35
PLUG
4
2
1
GRN/YEL
BLU
RED
BLK
BLK
VS
CONTROL
BLU
YEL OR WHT
OR ORG OR PUR
BLK
RED
BLU
SLV
SLV
RED OR
BRN
RED OR BRN

6074816-UIM-A-0421
16 Johnson Controls Ducted Systems
Figure 22: Wiring Diagram - Three Phase 13 SEER
6074819-UWD-A-0221
HIGH VOLTAGE FACTORY WIRING
LOW VOLTAGE FACTORY WIRING
OPTIONAL WIRING
FIELD WIRING, LINE VOLTAGE
TURN OFF ELECTRICAL POWER BEFORE
SERVICING TO PREVENT POSSIBLE
DAMAGE TO THE EQUIPMENT AND
POSSIBLE PERSONAL INJURY.
TO PREVENT ELECTRICAL SHOCK OPEN
REMOTE DISCONNECT SO ELECTRICAL
SUPPLY TO AIR CONDITIONER IS SHUT OFF.
COMPONENTS SHOWN IN DASHED
LINES ARE OPTIONAL.
BLACK WIRE WILL BE REMOVED IF LOW
AMBIENT KIT IS INSTALLED.
WIRING MUST CONFORM TO
NATIONAL AND LOCAL CODES.
IF ANY OF THE ORIGINAL WIRE
SUPPLIED WITH THIS UNIT MUST BE
REPLACED, IT MUST BE REPLACED
WITH TYPE 105°C. THERMOPLASTIC
OR ITS EQUIVALENT.
HPS - HIGH PRESSURE SWITCH
LPS - LOW PRESSURE SWITCH
CCH - CRANKCASE HEATER
HS - HEATER SWITCH
CC - CONTACTOR COIL
FC - FAN CAPACITOR
DANGER - SHOCK HAZARD
CAUTION
1
2
3
4
HPS
JUNCTION
BOX
24 VAC
CONTROL
CIRCUIT
(20 VA MIN.)
BLU
CC
BLU
1
LPS
1
BLU
YEL/PNK
OR YEL
YEL/PNK
OR YEL
GND
C
R
FAN
MOTOR
S
BRN
GRN
RED
BLK
208-230 VAC 60 Hz 3 PHASE SUPPLY
460 VAC 60 Hz 3 PHASE SUPPLY
575 VAC 60 Hz 3 PHASE SUPPLY
USE COPPER CONDUCTORS ONLY
COMPRESSOR
RED
CCH
BLK
HS
BLK
BLK
BLK
FC
BRN
T3 T2
T1
RED
BLK
BRN
RED
BLK
GND
LUG
GND
CONTACTOR 3
BLK
T3 T2 T1
L2 L1
L3
1

6074816-UIM-A-0421
Johnson Controls Ducted Systems 17
Figure 23: Wiring Diagram - Three Phase 17 SEER
RED
6075807-UWD-A-0321
HIGH VOLTAGE FACTORY WIRING
LOW VOLTAGE FACTORY WIRING
OPTIONAL WIRING
FIELD WIRING, LINE VOLTAGE
TURN OFF ELECTRICAL POWER BEFORE
SERVICING TO PREVENT POSSIBLE
DAMAGE TO THE EQUIPMENT AND
POSSIBLE PERSONAL INJURY.
TO PREVENT ELECTRICAL SHOCK OPEN
REMOTE DISCONNECT SO ELECTRICAL
SUPPLY TO AIR CONDITIONER IS SHUT OFF.
COMPONENTS SHOWN IN DASHED
LINES ARE OPTIONAL.
WIRING MUST CONFORM TO
NATIONAL AND LOCAL CODES.
IF ANY OF THE ORIGINAL WIRE
SUPPLIED WITH THIS UNIT MUST BE
REPLACED, IT MUST BE REPLACED
WITH TYPE 105°C. THERMOPLASTIC
OR ITS EQUIVALENT.
HPS - HIGH PRESSURE SWITCH
LPS - LOW PRESSURE SWITCH
CCH - CRANKCASE HEATER
HS - HEATER SWITCH
CC - CONTACTOR COIL
VS - VARIABLE SPEED
DANGER - SHOCK HAZARD
CAUTION
1
2
3
HPS
JUNCTION
BOX
24 VAC
CONTROL
CIRCUIT
(20 VA MIN.)
BLU
CC
BLU
1
LPS
1
BLU
YEL/PNK
OR YEL
YEL/PNK
OR YEL
208-230 VAC 60 Hz 3 PHASE SUPPLY
460 VAC 60 Hz 3 PHASE SUPPLY
575 VAC 60 Hz 3 PHASE SUPPLY
USE COPPER CONDUCTORS ONLY
COMPRESSOR
CCH
BLK
HS
BLK
BLK
BLK
T3 T2
T1
BLK
BRN
RED
BLK
GND
LUG
GND
CONTACTOR 3
BLK
T3 T2 T1
L2 L1
L3
1
S
C
R
FAN MOTOR
6
35
PLUG
4
2
1
GRN/YEL
BLU
RED
BLK
BLK
VS
CONTROL
BLU
YEL OR WHT
OR ORG OR PUR
BLK
RED
BLU
SLV
SLV
RED

6074816-UIM-A-0421
18 Johnson Controls Ducted Systems
NOTES

6074816-UIM-A-0421
Johnson Controls Ducted Systems 19
SECTION X: START-UP SHEET
Air Conditioning and Heating Start-Up Sheet
Proper start-up is critical to customer comfort and equipment longevity
Name Address
City State or Province Zip or Postal Code
Indoor Unit Model # Indoor Unit Serial #
Indoor Coil Model # Indoor Coil Serial #
Upow Downow Horizontal Left Horizontal Right
Unit is level
Venting system properly sized, within the limitations of the charts in the installation instructions.
Condensate drain for indoor coil properly connected
Filter Type
Intake Size
Exhaust Size
# of 90 Degree Ells # 0f 45 Degree Ells Length
Length# 0f 45 Degree Ells# of 90 Degree Ells
Polarity is correct (120vac indoor units) black is L1 (hot), white is N (neutral)Ground wire is connected
Indoor unit (volts AC)
Low voltage values: "R" and "C" at Indoor unit control board (volts AC)
Thermostat Type Other System Equipment and Accessories
Owner Information
Equipment Data
Venting (if applicable)
Electrical: Line Voltage
Outdoor Unit Model # Outdoor Unit Serial #
Filter, Thermostat, Accessories
Filter Location(s)
Connections -- Per Installation Instructions and Local Codes
Gas piping is connected (if applicable)
Supply plenum and return ducts are connected and sealed
Filter Size
Vent system is connected (if applicable)
Thermostat wiring complete
Heat anticipator is set to the recommended value listed in the Installation Instructions
Electrical: Low Voltage
Technician Performing Start-Up Installing Contractor Name
Start-Up Date
Condensate drain for furnace (if applicable)
Refrigerant piping complete and leak tested
Outdoor unit (volts AC) Overcurrent Protection Breaker / Fuses Amperes
"R" and "C" Outdoor unit control board (volts AC)
Heating Set-Up
Natural Gas LP Gas (Requires LP Conversion Kit)Electric Air Handler
LP Gas Conversion Kit Part # Used
LP Kit Installed By
Inlet Gas Pressure (in. w.c.")
Calculated input in btuh - clock the gas meter (Nat Gas Only)
Manifold Gas Pressure (in. w.c.")
Heating Type
Heat anticipator
recommended value
Electric Heat Kit Part # (if applicable) KW installed
Page 1 of 2 (7/5/16)
Rated BTU/H (furnaces)

Subject to change without notice. Published in U.S.A. 6074816-UIM-A-0421
Copyright © 2021 by Johnson Controls. All rights reserved. Supersedes: 1183509-UIM-O-0618
York International Corp.
5005 York Drive
Norman, OK 73069
Supply static after indoor coil (in w.c.")
Return Static (in w.c.") before lter
Total External Static Pressure
Installation debris disposed of and indoor and outdoor areas cleaned up?
Explain operation of system to equipment owner
Low
1 2
Medium Low Medium
3 4
Medium High High
5
A B DC
A B C D
Explain the importance of regular lter replacement and equipment maintenance
Air Side: System Total External Static Pressure
Owner Education
Supply static before indoor coil (in w.c.")
Return Static (in w.c.") after lter (furnace side)
Cooling
Indoor
Blower Set-Up
Clean Up
Provide owner with the owner's manual
Explain thermostat use and programming (if applicable) to owner
Cycle Test
Operate the unit through several heating cycles (if applicable) from the thermostat, noting and correcting any problems
Operate the unit through continuous fan cycles from the thermostat, noting and correcting any problems
Operate the unit through a cooling cycles, noting and correcting any problems
COOL
ADJUST
ECM
X-13
PSC
A B C D
DELAY
Heating
Indoor
Blower Set-Up
ECM
X-13
PSC
A
1 5
High
2 3 4
Low Medium
Low Medium Medium High
D
B C
Maximum Rated ESP (in w.c.")
Page 2 of 2 (7/5/16)
HEAT
Refrigerant Charge and Metering Device
TXV Fixed Orice
R-407C
R-410A
Oz.
# 45s# Elbows
Additional Lineset Length Adder per foot - lbs.
Total Added - lbs. Oz.
Comments Section
Liquid Line Temp Low Side PressureSuction Line TempHigh Side Pressure
Subcooling Superheat
Orice Size
TXV #
Temperature Rise
Return Air:
Dry Bulb
Supply Air:
Dry Bulb Wet BulbWet Bulb
Outside Air:
Dry Bulb
Temperature Drop
Return Air:
Dry Bulb
Supply Air:
Dry Bulb Wet BulbWet Bulb