Johnson controls Duct r-410a User manual

Johnson Controls Ducted Systems 5782374-UIM-B-0721

R-410A OUTDOOR SPLIT-SYSTEM

HEAT PUMP

MODELS: 14 SEER -

YEE, TE4B, REP14L SERIES

1.5 TONS TO 5 TONS – 1 PHASE

INSTALLATION MANUAL

LIST OF SECTIONS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INDOOR EXPANSION DEVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SYSTEM START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

INSTRUCTING THE OWNER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

WIRING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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

TXV installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TXV bulb and equalizer line installations . . . . . . . . . . . . . . . . . . . . . . 6

Proper bulb location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Outdoor unit swing away control box . . . . . . . . . . . . . . . . . . . . . . . . .12

Outdoor unit control box (208/230V single phase) . . . . . . . . . . . . . . 12

Outdoor unit control box

(208/230V single phase, (18 and 24 models only) . . . . . . . . . . . . . . 12

Typical field wiring (air handler / electrical heat)

(single and three-phase) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Heat pump flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Demand defrost control module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Defrost operation curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Wiring diagram - single phase - 208/230V (demand defrost) PSC fan

motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

LIST OF TABLES

Maximum / minimum operating limit conditions . . . . . . . . . . . . . . . . . .2

R-410A saturation properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Required subcool adjustment levels for Downflow and

Horizontal-Right Installations for the following equipment . . . . . . . . . .8

1.5 ton subcooling charging chart . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2 ton subcooling charging chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.5 ton subcooling charging chart . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3 ton subcooling charging chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.5 ton subcooling charging chart . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4 ton subcooling charging chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5 ton subcooling charging chart - 7/8 in. suction line set . . . . . . . . . 10

5 ton subcooling charging chart - 1 1/8 in. suction line set . . . . . . . .10

1.5 ton heating charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2 ton heating charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.5 ton heating charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 ton heating charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.5 ton heating charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 ton heating charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 ton heating charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

TEST input functionality with Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

TEST input functionality without Y . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Status code display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Defrost jumper pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

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 ft 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.

5782374-UIM-B-0721

2 Johnson Controls Ducted Systems

INSPECTION

As soon as a unit is received, it must be inspected for possible damage

during transit. If damage is evident, the extent of the damage must be

noted on the carrier’s delivery receipt. A separate request for inspection

by the carrier’s agent must be made in writing. See Local Distributor for

more information.

Requirements For Installing/Servicing R-410A Equipment

• Gauge sets, hoses, refrigerant containers, and recovery system

must be designed to handle the POE type oils, and the higher

pressures of R-410A.

• Manifold sets should be high side and low side with low side

retard.

• All hoses must have a 700 psig service pressure rating.

• Leak detectors should 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

The unit must be installed in accordance with all National, State and

Local Safety Codes and the limitations listed below:

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 will give maximum performance

and service life.

The unit should not be operated in cooling mode at outdoor temperatures below

50°F without an approved low ambient operation accessory kit installed.

The maximum allowable line length for this product is 80 ft. Consult the Piping

Application Guide (P/N 247077) for installations over the maximum allowable

line length. Installation of an accessory crankcase heater is required if not fac-

tory installed for installations over the maximum allowable line length.

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

outdoor coil, air discharge, and service access. See Figures 1 and 2.

If the unit is 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 out-

door 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, refer to 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 on

the UPGNET web site.

Provide adequate structural support for the unit.

ADD-ON REPLACEMENT/RETROFIT

When this unit is being used as a replacement for an R-410A unit, it is

required that the outdoor unit, indoor coil, and metering device all be

replaced. The following steps should be performed in order to insure

proper system operation and performance. Line-set change out is also

recommended.

1. Change-out of the indoor coil to an approved R-410A coil/outdoor

unit combination with the appropriate metering device.

2. Change-out of the line-set when replacing an R-22 unit with an

R410-A unit is highly recommended to reduce cross-contamination

of oils and refrigerants.

3. If change-out of the line set is not practical, then the following pre-

cautions should 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 possi-

ble.

• Install a suction line filter-drier to trap any remaining contami-

nants, and remove after 50 hrs of operation.

4. If the outdoor unit is being replaced due to a compressor burnout,

then installation of a 100% activated alumina suction-line filter drier

in the suction-line is required, in addition to the factory installed bi-

flow liquid-line drier. Operate the system for 10 hrs. Monitor the suc-

tion drier pressure drop. If the pressure drop exceeds 3 psig,

replace both the suction-line and liquid-line driers. After a total of 10

hrs 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 hrs of

run time.

Table 1:

Maximum / minimum operating limit conditions

Air temperature at

outdoor coil, °F Air temperature at

indoor coil, °F

Minimum Maximum Minimum Maximum

Cool DB

Heat DB

Cool DB

Heat WB

Cool DB

Heat WB

Cool DB

Heat

55°F 0°F 125°F 75°F 57°F 50°F 72°F 80°F

Operation below this temperature is permissible for a short period of time,

during morning warm-up.

NOTICE

For multiple unit installations, units must be spaced a minimum of 24

in. (61 cm) apart (coil face to coil face).

5782374-UIM-B-0721

Johnson Controls Ducted Systems 3

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5782374-UIM-B-0721

4 Johnson Controls Ducted Systems

GROUND INSTALLATION

The unit may be installed at ground level on a solid base that will not

shift or settle, causing strain on the refrigerant lines and possible leaks.

The unit must be installed in as level a position as possible while main-

taining the clearances shown in Figures 1 and 2.

Normal operating sound levels may be objectionable if the unit is placed

directly under windows of certain rooms (bedrooms, study, etc.).

Condensate will drain from beneath the coil of the outdoor unit during

the defrost cycle. Normally this condensate may be allowed to drain

directly on the ground.

Elevate the unit sufficiently to prevent any blockage of the air entrances

by snow in areas where there will be snow accumulation. Check the

local weather bureau for the expected snow accumulation in your area.

Isolate the unit from rain gutters to avoid any possible wash out of the

foundation.

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, etc.,

which should be used to minimize the transmission of sound or vibra-

tion 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 properly engineered solution.

UNIT PLACEMENT

1. Provide a base in the pre-determined location.

2. Remove the shipping carton and inspect for possible damage.

3. Ensure that compressor tie-down bolts remain tightened.

4. Position the unit on the base provided.

LIQUID LINE FILTER-DRIER

The heat pumps have a solid core bi-flow filter/drier located on the liquid

line.

PIPING CONNECTIONS

The outdoor unit must be connected to the indoor coil using field sup-

plied refrigerant grade (ACR) copper tubing that is internally clean and

dry. Units should be installed only with the tubing sizes for approved

system combinations as specified in tabular data sheet. The charge

given is applicable for total tubing lengths up to 15 ft (4.6 m). See Piping

Application Guide (P/N 247077) 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 should be installed so that they will 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 will be

exposed to direct sunlight, high temperatures, or excessive humid-

ity must also be insulated.

5. Tape and suspend the refrigerant lines as shown. Do not allow

tube metal-to-metal contact. See Figure 3.

6. Use PVC piping as a conduit for all underground installations as

shown in Figure 4. Buried lines should 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.

WARNING

The outdoor unit must not be installed in an area where mud or ice

could cause personal injury. Remember that condensate will drip from

the unit coil during heat and defrost cycles and that this condensate

will freeze when the temperature of the outdoor air is below 32°F.

NOTICE

Heat pumps will defrost periodically resulting in water drainage. The

unit must not be located where water drainage may freeze and create

a hazardous condition - such as sidewalks and steps.

NOTICE

Replacements for the liquid line drier must be exactly the same as

marked on the original factory drier. See Source 1 for O.E.M. replace-

ment driers.

R-410A filter-drier source 1 Part No. Apply with models

S1-02650625000 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

247077).

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 recovery system must

be designed to handle R-410A. If you are unsure, consult the equip-

ment 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

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5782374-UIM-B-0721

Johnson Controls Ducted Systems 5

8. For systems with total line length exceeding 80 ft (22.86 m), see

Piping Application Guide (P/N 247077) 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, traps, crankcase heater, etc.

PRECAUTIONS DURING BRAZING OF LINES

All outdoor unit and indoor coil connections are copper-to-copper and

should be brazed with a phosphorous-copper alloy material such as Sil-

fos-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 should be taken to prevent heat damage to service valve

by wrapping a wet rag around it as shown in Figure 5. Also, protect all

painted surfaces, insulation, and plastic base during brazing.After braz-

ing, cool joint with wet rag.

The valve can be opened by removing the service valve cap and fully

inserting a hex wrench into the stem and backing out counter-clockwise

until 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 pressure

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 continue

flowing.

3. Carefully remove the plugs from the indoor liquid and vapor con-

nections at the indoor coil.

4. Braze the liquid line to the indoor coil liquid connection. Nitrogen

should 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 indoor coil 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 should be exiting the

system from the vapor service port connection. After this connection

has cooled, 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 and 60 in. - lbs. maximum).

10.Evacuate the vapor line, indoor coil, and liquid line to 500 microns or

less. See Section V.

Figure 4: Underground installation

CAUTION

Dry nitrogen should 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 should 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

LIQUID LIN

CAP

PVC

COND

SULA

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 ounce of refrigerant will be lost each time a standard man-

ifold gauge is connected.

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5782374-UIM-B-0721

6 Johnson Controls Ducted Systems

11. Release the refrigerant charge into the system. Open the liquid line

service valve first. Once system pressures have equalized, open the

vapor line service valve. Valves can be opened by removing the

valve caps and turn the valve counterclockwise using a hex head

wrench. If the service valve is a ball valve, use an adjustable end

wrench to turn valve stem one-quarter turn counterclockwise to

open. Do not overturn or the valve stem may break or become dam-

aged. See “PRECAUTIONS DURING BRAZING SERVICE VALVE”.

12.Replace service valve cap finger tight, then tighten an additional 1/

12 turn (1/2 hex flat). Cap must be replaced to prevent leaks.

13.See “System Charge” section for checking and recording system

charge. See Section VI.

SECTION IV: INDOOR EXPANSION DEVICE

THERMOSTATIC EXPANSION VALVE (TXV)

INSTALLATION

The following are the basic steps for installation. For detailed instruc-

tions, refer to the Installation Instructions accompanying the TXV kit.

Install TXV kit as follows:

1. Relieve the holding charge by depressing Schrader core on the suc-

tion manifold stub out.

2. After holding charge is completely discharged, loosen and remove

the Schrader core.

3. Place a backup wrench on distributor, loosen and remove brass dis-

tributor nut. Retain brass nut for use on liquid line. Keep PTFE

washer in place and discard clear disk.

4. Install the thermal expansion valve to the distributor assembly with

supplied fittings. Ensure PTFE washer is seated in distributor. Hand

tighten and turn an additional 1/4 turn to seal. Do not over-tighten fit-

tings. See Figure 6.

5. Slide the nut removed in Step 3 over the supplied liquid line. Place

supplied PTFE washer from TXV kit in place on TXV, and install liq-

uid line to the top of the thermal expansion valve. Adjust assembly

so liquid line aligns with hole in access panel. 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 Figure 7.

7. Pass the TXV temperature sensing bulb through the suction line

split grommet in 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 is

making maximum contact. See Figures 7 and 8.

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 8.

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.

c. Insulate the bulb using thermal insulation provided to protect

it from the effect of the surrounding ambient temperature.

Cover completely to insulate.

WARNING

Never attempt to repair any brazed connections while the system is

under pressure. Personal injury could result.

IMPORTANT: Refer to the Technical Guide for the unit to determine

the proper TXV kit to be used on this product.

CAUTION

Do not over-torque. Do not use slip joint pliers. This will distort the

aluminum distributor and the brass fitting (potentially causing leaks).

WARNING

Schrader valve core MUST NOT be installed with TXV installation.

Poor system performance or system failure could result.

Figure 6: TXV installation

Figure 7: TXV bulb and equalizer line installations

CAUTION

In all cases, mount the TXV bulb after vapor line is brazed and has

had sufficient time to cool. Failure to use suction line grommet may

result in premature TXV failure.

TXV/distributor coupling

Liquid line/TXV coupling

PTFE washer

TXV

PTFE washer

Distributor

A0281-004

TXV BULB

(Wrap with

insulation.)

VAPOR LINE

LIQUID LINE

TVX

EQUALIZER

LINE

THERMAL EXPANSION

VALVE

(

TXV

)

DISTRIBUTOR

BODY A0279-002

5782374-UIM-B-0721

Johnson Controls Ducted Systems 7

9. After line set is installed, leak test the system.

SECTION V: EVACUATION

It will be 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, simply close the valve to the vac-

uum pump suction to isolate the pump and hold the system under vac-

uum. Watch the micron gauge for a few minutes. If the micron gauge

indicates 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 added

accordingly.

MEASURE INDOOR AIR FLOW

To determine rated air flow for a specific match, consult the technical lit-

erature at www.upgnet.com. When attempting to match this air flow,

select the lowest possible speed tap, measure the actual flow, and

adjust as necessary.

To measure actual air flow, it is not an acceptable method to just

check the jumper pin setting tables and is to assume 0.5 in. water

column total external static pressure.

To determine indoor air flow, first measure the static pressure with a

manometer between the filter and return air opening of the indoor

equipment. On a single-piece or modular air handler, take a second

reading in the supply air ductwork leaving the indoor equipment. On a

gas furnace, take the second reading after the heat exchanger, but

before the indoor coil. Add the negative return static to the positive sup-

ply static to determine the system total static pressure. Treat the nega-

tive return static as a positive pressure (even though it is a negative

reading). If there is static pressure on the blower (i.e. -.10) return, add it

to a supply static (.40) which equals a (.50) total system static pressure.

Compare this value to the indoor blower performance charts ensuring

air flow is between 350 CFM to 450 CFM per ton of cooling.

CHARGING THE UNIT

The factory charge in the outdoor unit includes enough charge for the

unit, 15 ft (4.6 m) of refrigerant piping, and the smallest indoor coil/air

handler match-up. Some indoor coil/air handler matches may require

additional charge.

See Tabular Data Sheet provided in unit Customer Booklet for charge

requirements. The “TOTAL SYSTEM CHARGE” must be permanently

marked on the unit data plate.

TOTAL SYSTEM CHARGE DETERMINED

1. Determine outdoor unit factory charge from Tabular Data Sheet.

2. Determine indoor coil adjustment (if any) from Tabular Data Sheet.

3. Calculate the additional charge for refrigerant piping using the Tabu-

lar Data Sheet if line length is greater than 15 ft (4.6 m).

4. Total system charge = item 1 + item 2 + item 3.

5. Check the unit against the pressure value listed on the cooling chart

on the unit or the appropriate heat charging chart on the following

pages of this Installation Manual. Make any adjustment necessary.

6. Add or subtract refrigerant to obtain the pressure listed on charging

chart. Make sure to adjust the total system charge by the amount

added or removed to obtain charging chart pressures. Permanently

mark the unit data plate with the total amount of refrigerant in the

system.

CHARGING WITH GAUGES

All units include a cooling charging chart for cooling. The heating

charging charts in Table 12 through Table 18 in this document use the

chart corresponding to the installed indoor coil. It can also be obtained

at www.simplygettingthejobdone.com under the Service Application

Data section.

Figure 8: Proper bulb location

CAUTION

If a field installed device is placed in the inner-connecting refrigerant

lines that can store a significant refrigerant charge (ex: refrigerant

mass flow meter, liquid receiver, etc.) the unit may not perform as

designed. If such a performance affecting device is installed and it is

possible to check the unit in heating mode, the unit pressures should

be confirmed in heating mode. Refer to the heating charging charts

located in this installation manual.

CAUTION

Refrigerant charging should only be carried out by a licensed quali-

fied air conditioning contractor.

TXV BULB

(Cover completely

with insulation.)

VAPOR LINE

OF LINE SET

A0269-002

CLAMP

DETAIL A

TXV SENSING BULB

(Pass through split hole

in grommet.)

VAPOR

LINE

NUT

Bulb at

10 o’clock

position.

Bulb at

2 o’clock

position.

SCREW

CLAMP

CAUTION

Always charge in liquid form. Take care not to slug the compressor.

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.

CAUTION

Do not leave the system open to the atmosphere. Unit damage could

occur due to moisture being absorbed by the POE oil in the system.

This type of oil is highly susceptible to moisture absorption.

WARNING

Do not attempt to pump “Total System Charge” into outdoor unit for

maintenance, service, etc. This may cause damage to the compres-

sor and/or other components. Recover and weigh “System Charge”

into an appropriate recovery cylinder for any instances requiring

evacuation.

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.

CAUTION

Refrigerant charging should only be carried out by a qualified air con-

ditioning contractor.

5782374-UIM-B-0721

8 Johnson Controls Ducted Systems

Before using gauges, confirm that your gauges are accurate by

comparing the gauges against a calibrated pressure gauge that

has been calibrated against a national standard. If a calibrated

pressure gauge is not available, place a R-410A virgin refrigerant

container in a conditioned space long enough to come to tempera-

ture equilibrium with the surroundings. Then measure the tem-

perature of the air and the pressure of the refrigerant and compare

it to the following table:

Before measuring the pressures, use the method above to check the air

flow and then consult the table and match the liquid pressure to that air

flow.

Reference the cooling/heating charging charts in Tables 4 - 18.

SUBCOOLING CHARGING CHARTS

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.

Table 2:

R-410A saturation properties

Temp

(°F) Pressure

(psig) Temp

(°F) Pressure

(psig) Temp

(°F) Pressure

(psig)

40 119 75 218 110 365

45 130 80 236 115 391

50 143 85 255 120 418

55 156 90 274 125 447

60 170 95 295 130 477

65 185 100 317 – –

70 201 105 341 – –

Table 3:

Required subcool adjustment levels for Downflow and

Horizontal-Right Installations for the following equipment

Unit

size Indoor

model

Reduce subcooling

value on charging

chart by this amount

18 AE/AVC18B, CF/CM/CU18(A,B),

RFCX18BE 10

24 AE/AVC24B, CF/CM/CU24(B,C),

RFCX24BE 10

30 AE/AVC30B, CF/CM/CU30(A,B,C),

RFCX30BE 6

36 AE/AVC36(B,C), CF/CM/CU36(B,C,D),

RFCX36(B,C)E 6

42 AE/AVC42C, AE/AVC48(C,D),

CF/CM/CU48(C,D),

RFCX42C, RFCX48(C,D)E 9

48 AE/AVC48(C,D), CF/CM/CU48(C,D),

RFCX48(C,D)E 4

60 AE60D, AVC60D, CF/CM64D 3

!Table 4:

1.5 ton subcooling charging chart

Outdoor ambient

DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base value

55 212(12) 215(12) 218(11) 220(10)

60 229(11) 231(12) 234(11) 238(10)

65 247(11) 249(12) 252(11) 256(11)

70 266(11) 269(12) 272(12) 276(11)

75 288(12) 291(13) 294(12) 298(12)

80 311(13) 314(14) 317(13) 321(13)

85 335(13) 338(15) 341(14) 346(14)

90 362(14) 365(15) 368(15) 372(15)

95 390(15) 392(16) 395(16) 400(16)

100 420(15) 422(17) 425(16) 429(16)

105 451(16) 453(17) 456(16) 459(16)

110 484(16) 486(17) 489(17) 491(16)

115 519(16) 521(17) 523(17) 525(16)

120 555(17) 557(18) 559(18) 560(17)

125 593(19) 594(19) 597(19) 596(18)

Table 5:

2 ton subcooling charging chart

Outdoor

ambient DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base valve

55 217(12) 220(12) 223(12) 226(10)

60 235(12) 238(13) 241(12) 245(11)

65 254(12) 258(13) 261(13) 265(12)

70 275(13) 279(14) 282(13) 286(13)

75 297(14) 301(15) 304(14) 308(14)

80 321(15) 325(16) 328(15) 332(15)

85 346(16) 350(17) 353(16) 357(16)

90 372(17) 376(18) 379(17) 384(16)

95 400(17) 404(18) 407(18) 412(17)

100 430(17) 433(18) 437(18) 441(17)

105 460(18) 464(18) 467(18) 471(17)

110 492(18) 496(18) 499(18) 503(17)

115 526(18) 530(19) 533(18) 536(18)

120 561(18) 564(19) 568(19) 571(19)

125 597(19) 601(20) 604(20) 607(20)

5782374-UIM-B-0721

Johnson Controls Ducted Systems 9

Table 6:

2.5 ton subcooling charging chart

Outdoor

ambient DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base valve

55 201(7) 204(8) 205(8) 209(8)

60 217(7) 220(8) 222(7) 225(8)

65 234(7) 237(8) 239(7) 242(8)

70 253(7) 256(8) 258(8) 261(8)

75 273(8) 276(8) 278(8) 281(8)

80 294(8) 297(9) 300(9) 303(9)

85 317(9) 320(10) 323(10) 325(10)

90 341(10) 344(10) 347(10) 349(10)

95 366(10) 369(11) 372(11) 375(11)

100 392(10) 395(11) 399(11) 401(11)

105 420(10) 423(11) 427(11) 429(11)

110 449(10) 452(11) 456(11) 459(10)

115 480(10) 482(11) 486(11) 489(10)

120 511(10) 514(10) 518(11) 521(10)

125 544(10) 546(10) 551(11) 554(10)

Table 7:

3 ton subcooling charging chart

Outdoor

ambient DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base valve

55 195(8) 198(9) 200(10) 207(13)

60 212(8) 214(9) 217(9) 222(11)

65 229(8) 231(8) 234(9) 239(11)

70 248(8) 250(8) 253(9) 257(10)

75 269(9) 270(9) 273(9) 277(10)

80 290(9) 291(9) 294(10) 298(10)

85 313(10) 314(10) 316(10) 320(11)

90 338(11) 337(11) 340(11) 344(11)

95 363(11) 363(11) 366(11) 369(11)

100 390(12) 389(12) 392(12) 395(12)

105 418(12) 417(12) 420(12) 423(12)

110 447(12) 447(12) 449(12) 452(12)

115 478(12) 477(12) 480(12) 483(12)

120 509(12) 509(12) 511(12) 515(12)

125 543(12) 542(12) 544(12) 548(12)

Table 8:

3.5 ton subcooling charging chart

Outdoor

ambient DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base valve

55 211 (12) 211 (12) 214 (12) 217 (12)

60 230 (12) 231 (12) 234 (12) 236 (12)

65 250 (12) 250 (13) 253 (12) 256 (12)

70 269 (12) 270 (13) 273 (12) 276 (12)

75 288 (13) 290 (13) 293 (13) 296 (12)

80 314 (13) 315 (14) 317 (13) 320 (13)

85 340 (13) 340 (14) 342 (13) 345 (13)

90 366 (14) 365 (14) 367 (14) 370 (14)

95 391 (14) 390 (15) 392 (14) 395 (14)

100 424 (15) 423 (15) 426 (15) 428 (15)

105 457 (15) 456 (16) 459 (15) 461 (15)

110 490 (16) 488 (16) 492 (16) 495 (16)

115 523 (16) 521 (17) 526 (16) 528 (16)

120 555 (17) 553 (17) 559 (17) 561 (17)

125 588 (18) 586 (18) 592 (18) 594 (18)

Table 9:

4 ton subcooling charging chart

Outdoor

ambient DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base valve

55 199 (8) 202 (9) 204 (9) 206 (9)

60 218 (8) 221 (9) 223 (9) 225 (9)

65 237 (8) 239 (9) 241 (8) 243 (8)

70 256 (8) 257 (9) 259 (8) 262 (8)

75 275 (8) 276 (9) 278 (8) 280 (8)

80 298 (8) 299 (9) 301 (8) 303 (8)

85 322 (8) 323 (9) 325 (8) 327 (8)

90 345 (9) 346 (9) 348 (9) 350 (8)

95 368 (9) 370 (9) 372 (9) 373 (9)

100 399 (9) 400 (9) 402 (9) 404 (9)

105 429 (9) 430 (10) 432 (9) 434 (9)

110 460 (9) 460 (10) 463 (9) 465 (9)

115 490 (9) 489 (10) 493 (10) 495 (9)

120 520 (10) 519 (10) 523 (10) 526 (10)

125 551 (10) 549 (10) 554 (10) 556 (10)

5782374-UIM-B-0721

10 Johnson Controls Ducted Systems

HEAT CHARGING CHARTS

Table 10:

5 ton subcooling charging chart - 7/8 in. suction line set

Outdoor

ambient DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base valve

55 203 (8) 208 (8) 211 (9) 215 (9)

60 223 (8) 227 (8) 230 (8) 234 (9)

65 242 (8) 246 (8) 249 (8) 253 (9)

70 261 (8) 264 (8) 267 (8) 272 (9)

75 280 (8) 283 (8) 286 (8) 291 (9)

80 304 (9) 307 (9) 310 (9) 314 (9)

85 329 (9) 331 (9) 334 (9) 337 (9)

90 353 (9) 355 (9) 359 (9) 360 (9)

95 377 (9) 379 (9) 382 (9) 384 (9)

100 409 (10) 410 (10) 414 (10) 415 (10)

105 440 (10) 442 (10) 445 (10) 447 (10)

110 472 (10) 473 (10) 476 (10) 479 (10)

115 503 (11) 504 (11) 507 (11) 510 (11)

120 535 (11) 536 (11) 539 (11) 542 (11)

125 566 (12) 567 (12) 570 (12) 574 (12)

Table 11:

5 ton subcooling charging chart - 1 1/8 in. suction line set

Outdoor

ambient DB (F)

Indoor wet bulb (°F) at 80°F dry bulb

57 62 67 72

Pressure (psig) and subcooling (°F) at liquid

base valve

55 205 (9) 209 (9) 212 (9) 216 (10)

60 224 (9) 228 (9) 231 (9) 236 (10)

65 244 (9) 247 (9) 250 (9) 255 (10)

70 263 (9) 266 (10) 269 (10) 274 (10)

75 282 (10) 285 (10) 288 (10) 293 (10)

80 307 (10) 309 (10) 313 (10) 316 (10)

85 331 (10) 334 (10) 337 (10) 340 (10)

90 355 (10) 358 (10) 361 (10) 363 (10)

95 380 (10) 382 (10) 385 (10) 386 (10)

100 412 (11) 413 (11) 417 (11) 418 (11)

105 443 (11) 445 (11) 448 (11) 450 (11)

110 475 (12) 476 (12) 480 (12) 482 (12)

115 507 (12) 508 (12) 511 (12) 514 (12)

120 539 (13) 540 (13) 543 (13) 546 (13)

125 571 (13) 571 (13) 574 (13) 578 (13)

Table 12: 1.5 ton heating charts

CFM

Ambient

temperature (°F) 60 47 40 30 17 10

Indoor

temperature (°F) 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80

450 Liquid pressure

(subcool) 348

(18) 390

(17) 432

(17) 318

(21) 361

(21) 405

(21) 301

(22) 346

(23) 391

(23) 278

(23) 324

(25) 370

(26) 248

(25) 296

(27) 344

(29) 232

(26) 280

(28) 329

(31)

600 Liquid pressure

(subcool) 318

(15) 361

(15) 403

(15) 293

(18) 336

(19) 378

(19) 280

(19) 322

(20) 365

(21) 261

(21) 303

(22) 345

(24) 236

(23) 278

(25) 320

(27) 222

(24) 265

(26) 307

(28)

750 Liquid pressure

(subcool) 289

(12) 332

(13) 375

(14) 269

(15) 310

(16) 351

(17) 259

(17) 299

(18) 339

(19) 243

(19) 282

(20) 320

(21) 223

(21) 260

(22) 297

(24) 213

(22) 249

(24) 284

(25)

-Suction pressure 127 107 95 79 59 48

Table 13: 2 ton heating charts

CFM

Ambient

temperature (°F) 60 47 40 30 17 10

Indoor

temperature (°F) 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80

600 Liquid pressure

(subcool) 353

(17) 396

(17) 445

(19) 329

(20) 370

(21) 416

(23) 316

(22) 356

(23) 401

(24) 297

(24) 336

(25) 379

(27) 272

(26) 310

(28) 350

(29) 259

(27) 296

(29) 335

(30)

800 Liquid pressure

(subcool) 321

(15) 362

(16) 408

(17) 301

(18) 341

(19) 385

(21) 290

(19) 330

(21) 373

(22) 275

(21) 314

(23) 355

(25) 255

(24) 293

(26) 332

(27) 245

(25) 281

(27) 320

(28)

1000 Liquid pressure

(subcool) 288

(12) 328

(13) 372

(14) 273

(15) 312

(16) 354

(18) 265

(16) 304

(18) 345

(20) 253

(18) 291

(21) 332

(22) 239

(21) 275

(23) 315

(25) 230

(22) 267

(25) 305

(27)

-Suction pressure 126 101 88 74 59 49

Table 14: 2.5 ton heating charts

CFM

Ambient

temperature (°F) 60 47 40 30 17 10

Indoor

temperature (°F) 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80

750 Liquid pressure

(subcool) 379

(26) 427

(26) 477

(26) 350

(25) 395

(26) 444

(26) 335

(25) 377(

25) 427

(26) 313

(24) 352

(24) 402

(25) 284

(22) 320

(22) 369

(24) 268

(22) 302

(20) 351

(24)

1000 Liquid pressure

(subcool) 345

(24) 394

(26) 441

(25) 321

(23) 366

(24) 414

(25) 308

(23) 351(

24) 399

(24) 290

(21) 330

(22) 377

(23) 266

(20) 302

(19) 350

(22) 253

(19) 287

(18) 335

(21)

1250 Liquid pressure

(subcool) 311

(22) 360

(24) 406

(24) 292

(21) 337

(23) 383

(23) 282

(20) 325(

21) 371

(22) 267

(19) 307

(19) 353

(21) 248

(17) 285

(17) 331

(19) 238

(16) 272

(15) 319

(18)

-Suction pressure 126 103 92 77 60 51

5782374-UIM-B-0721

Johnson Controls Ducted Systems 11

Table 15: 3 ton heating charts

CFM

Ambient

temperature (°F) 60 47 40 30 17 10

Indoor

temperature (°F) 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80

900 Liquid pressure

(subcool) 401

(36) 455

(37) 509

(37) 372

(39) 425

(40) 479

(41) 356

(40) 409

(41) 462

(43) 333

(40) 384

(42) 435

(44) 304

(39) 352

(42) 399

(44) 289

(38) 333

(41) 378

(43)

1200 Liquid pressure

(subcool) 363

(33) 413

(34) 464

(35) 339

(35) 390

(36) 440

(38) 326

(35) 376

(37) 426

(39) 308

(36) 356

(38) 405

(40) 284

(35) 329

(38) 375

(40) 272

(35) 314

(37) 357

(39)

1500 Liquid pressure

(subcool) 324

(31) 371

(31) 419

(32) 306

(31) 354

(33) 402

(34) 296

(31) 344

(33) 391

(35) 282

(31) 328

(34) 375

(36) 264

(31) 307

(34) 350

(36) 255

(31) 295

(33) 336

(36)

-Suction pressure 123 100 88 73 56 49

Table 16: 3.5 ton heating charts

CFM

Ambient

temperature (°F) 60 47 40 30 17 10

Indoor

temperature (°F) 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80

1150 Liquid pressure

(subcool) 377

(34) 421

(34) 465

(33) 347

(35) 392

(36) 438

(36) 333

(36) 376

(37) 419

(38) 312

(36) 353

(37) 394

(38) 290

(35) 331

(36) 372

(37) 282

(35) 312

(34) 342

(33)

1400 Liquid pressure

(subcool) 342

(32) 385

(32) 428

(31) 318

(32) 362

(33) 406

(33) 306

(33) 349

(34) 392

(35) 288

(32) 329

(33) 369

(34) 270

(32) 312

(33) 353

(33) 265

(32) 300

(32) 335

(32)

1650 Liquid pressure

(subcool) 306

(30) 349

(29) 391

(28) 290

(29) 332

(30) 374

(30) 279

(30) 322

(31) 365

(31) 264

(28) 305

(29) 345

(29) 251

(28) 292

(29) 334

(29) 249

(28) 289

(29) 328

(30)

-Suction pressure 122 99 86 73 56 50

Table 17: 4 ton heating charts

CFM

Ambient

temperature (°F) 60 47 40 30 17 10

Indoor

temperature (°F) 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80

1200 Liquid pressure

(subcool) 357

(14) 404

(15) 451

(16) 334

(17) 379

(18) 424

(19) 299

(17) 357

(20) 415

(24) 304

(26) 350

(27) 395

(28) 257

(22) 295

(23) 332

(25) 249

(24) 284

(24) 319

(24)

1500 Liquid pressure

(subcool) 329

(12) 374

(13) 420

(14) 310

(16) 353

(17) 397

(18) 289

(17) 339

(20) 390

(22) 286

(23) 330

(25) 374

(26) 243

(20) 280

(21) 317

(22) 236

(22) 271

(22) 306

(22)

1800 Liquid pressure

(subcool) 301

(10) 345

(11) 388

(13) 286

(15) 328

(16) 370

(17) 278

(18) 322

(19) 366

(20) 268

(21) 310

(22) 353

(23) 230

(18) 265

(19) 301

(19) 224

(19) 258

(19) 293

(19)

-Suction pressure 121 99 87 72 58 50

Table 18: 5 ton heating charts

CFM

Ambient

temperature (°F) 60 47 40 30 17 10

Indoor

temperature (°F) 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80 60 70 80

1500 Liquid pressure

(subcool) 328

(26) 373

(26) 417

(26) 299

(24) 344

(24) 389

(25) 289

(24) 334

(25) 379

(27) 277

(25) 319

(27) 362

(29) 241

(9) 274

(7) 307

(4) 221

(1) 255

(1) 290

(1)

1750 Liquid pressure

(subcool) 308

(25) 352

(25) 395

(24) 284

(23) 327

(23) 370

(23) 274

(22) 317

(23) 361

(24) 263

(24) 305

(25) 346

(26) 234

(9) 267

(7) 300

(6) 216

(3) 250

(2) 283

(1)

2000 Liquid pressure

(subcool) 289

(24) 331

(23) 373

(23) 269

(22) 309

(21) 350

(21) 259

(21) 301

(21) 344

(22) 250

(24) 291

(23) 331

(23) 226

(9) 260

(8) 293

(7) 212

(5) 244

(3) 276

(1)

-Suction pressure 122 98 83 71 55 47

5782374-UIM-B-0721

12 Johnson Controls Ducted Systems

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 an inch 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, it is recommended to route the low

voltage wiring for the thermostat along the unit high voltage wiring to

help facilitate the swing away feature of the control box. Refer to Figure

Check the electrical supply to be sure that 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 should be

sized per 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 10 and 11.

5. Install the correct size time-delay fuses or circuit breaker, and

make the power supply connections.

NOTICE

Flexible electrical wiring must be installed in order to use the swing

away function of the control box. Rigid type electrical connections

require the wiring to be disconnected in order to swing the control box

open.

Figure 9: Outdoor unit swing away control box

CAUTION

All field wiring must USE COPPER CONDUCTORS ONLY and be in

accordance with Local, National, Fire, Safety and Electrical Codes.

This unit must be grounded with a separate ground wire in accor-

dance with the above codes.

A0336-001

HIGH VOLTAGE

ELECTRICAL WHIP

CONTROL BOX

(Swing away)

Figure 10: Outdoor unit control box (208/230V single phase)

Figure 11: Outdoor unit control box

(208/230V single phase, (18 and 24 models only)

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5782374-UIM-B-0721

Johnson Controls Ducted Systems 13

FIELD CONNECTIONS CONTROL WIRING

1. Route low voltage wiring into bottom of control box as shown in

Figures 10 and 11. Make low voltage wiring connections inside the

low voltage box per Figure 12.

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

CONNECTINS POWER WIRING procedures.

4. All field wiring to be in accordance with national electrical codes

(NEC) and local-city codes.

5. Mount the thermostat about 5 ft above the floor, where it will be

exposed to normal room air circulation. Do not place it on an out-

side 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-volt control wiring (NEC Class 2) from the outdoor

unit to the indoor unit and thermostat.

DEHUMIDIFICATION CONTROL (Typical)

The indoor unit Installation Manual instructions for the air handler or fur-

nace describe the interface with the outdoor heat pump. A dehumidifi-

cation control accessory SI-2HU16700124 may be used with variable

speed air handlers or furnaces in high humidity areas. This control

works with the variable speed indoor unit to provide cooling at a

reduced air flow, lowering evaporator temperature and increasing latent

capacity. The humidistat in this control opens the humidistat contacts as

the humidity increases. Installation instructions are packaged with the

accessory. Prior to the installation of the dehumidification control, the

humidistat jumper must be set to YES on the indoor variable speed air

handler or furnace control board.

During cooling, if the relative humidity in the space is higher than the

desired set point of the dehumidification control, the variable speed

blower motor will operate at lower speed until the dehumidification con-

trol is satisfied. A 40-60% relative humidity level is recommended to

achieve optimum comfort.

If a dehumidification control is installed, it is recommended that a mini-

mum air flow of 325 cfm/ton be supplied at all times.

To see connection diagrams of all UPG equipment, the “Low Voltage

System Wiring” document is available online at www.upgnet.com in the

Product Catalog Section.

INDOOR CUBIC FEET PER MINUTE (CFM) SELEC-

TION BOARD SETTINGS (Typical)

Refer to the indoor unit Installation Manual instructions for the air han-

dler or furnace interface with the outdoor heat pump. Refer to the Out-

door Technical Guide for the recommended indoor air flow settings of

each specific heat pump. For the system to operate correctly, ensure

that the indoor CFM selection control jumpers are properly set. Set the

indoor cooling fan speed per the instructions for the air handler or fur-

nace by selecting the correct COOL and ADJUST (or ADJ) taps. Verify

the indoor airflow by using the LED display on the indoor CFM selection

board.

SECTION VIII: SYSTEM START-UP

ENERGIZE CRANKCASE HEATER

(where applicable)

In order to energize the crankcase heater, set the indoor cooling ther-

mostat to the OFF position. Close the line power disconnect to the unit.

The outdoor unit (where applicable) has a CCH thermostat that opens

at 45°F and closes at 35°F outdoor ambient temperature.

WITH POWER TO UNIT AND THERMOSTAT IN COOLING

POSITION:

1. In the cooling cycle, discharge gas is pumped to the outdoor coil

which is the condenser. The indoor coil is the evaporator.

2. If the fan switch is in ON position, a circuit is made through the

blower relay to provide continuous blower operation.

3. With fan switch in AUTO position, a circuit is made from thermostat

cooling contact through blower relay to provide blower operation.

4. The system will cycle with thermostat demand to provide cooling as

needed.

NOTICE

A Start Assist Kit is available and recommended for long line set

applications or in areas of known low voltage problems. The kit may

be required when a TXV is used (reference 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.

Figure 12: Typical field wiring (air handler / electrical heat)

(single and three-phase)

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An attempt to start the compressor without at least 8 hrs of crankcase

heat may damage the compressor. Installation of an accessory crank-

case heater is required if not factory installed for installations over the

maximum allowable line length.

5782374-UIM-B-0721

14 Johnson Controls Ducted Systems

SECTION IX: SYSTEM OPERATION

ANTI SHORT-CYCLE DELAY

The control includes a 5-minute anti short-cycle delay (ASCD) timer to

prevent the compressor from short-cycling after a power or thermostat

signal interruption. The ASCD timer is applied when the control is first

powered from the indoor unit thermostat and immediately following the

completion of a compressor run cycle. The compressor and the outdoor

fan will not operate during the five minutes that the timer is active.

The ASCD timer can be bypassed by shorting the TEST terminals for

three s while the thermostat is calling for compressor operation (Y input

signal energized).

LOW VOLTAGE DETECTION

The control monitors the transformer secondary (24 VAC) voltage and

provides low voltage protection for the heat pump and its components.

In particular, the control prevents contactor chatter during low voltage

conditions. If the voltage drops below approximately 19 VAC, the con-

trol will continue to energize any relays that are already energized but

will not energize any additional relays until the voltage level increases.

If the voltage drops below approximately 16 VAC, the control will imme-

diately de-energize the relay outputs and will not energize any relays

until the voltage level increases.

TEST INPUT

The control includes a TEST input connector that can be used for vari-

ous testing functions during installation and service. The TEST input

connector is shown in Figure 14. The following table summarizes the

behavior of the control when the two TEST pins are connected. More

detailed descriptions of the various functions are included in other sec-

tions of this document.

Table 19:

TEST input functionality with Y

Duration of connection (seconds) Control behavior with thermostat signals present

< 2 No response

2-5 Bypass ASCD (Reduce timer to zero immediately). If Y1 is present and high-pressure switch is closed,

contactors will be energized.

Clear pressure switch lockout and reset the 6-hr PS timer.

> 5 Initiate defrost cycle ignoring the COIL temp and record that defrost cycle was initiated by TEST short.

Energize Wout and begin defrost cycle immediately upon expiration of timer.

Test pin short removed Terminate defrost as normal.

Test pin short not removed Continue defrost cycle until TEST connection removed.

Table 20:

TEST input functionality without Y

Duration of connection (s) Control behavior with thermostat signals NOT present

< 2 No response

2-5 The control shall sequentially flash, on the STATUS LED, the series of stored error codes (up to the last 5

since active error codes were last cleared) starting with the most recent. If there are no error codes stored

in memory, the STATUS LED shall flash 3 times (0.1 sec ON / 0.1 sec OFF).

> 5 The control shall immediately clear the stored error code array, reset the 6 hour PS timer and flash the

STATUS LED 6 times (0.1 sec ON / 0.1 sec OFF) to indicate that the error memory has been cleared.

Figure 13: Heat pump flow diagram

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5782374-UIM-B-0721

Johnson Controls Ducted Systems 15

FAULT CODE DISPLAY

The control shall provide status codes using the LED. Status codes indi-

cate the state of operation of the unit but do not represent a fault. The

table below describes the LED displays during status codes. Status

codes will not be displayed when a fault code is present.

The control shall provide fault codes using the Status LED. The table

below describes the LED displays during fault codes. Unless otherwise

specified, the control shall provide flashes that are a 1/3 s on and 1/3 s

off for fault codes. The control shall only display a single fault code on

the LED. The control shall display the fault code on the LED repeatedly

with a 2 s off period between repetitions of the fault code. If multiple

fault codes are present at the same time, the LED shall display only the

most recent fault.

Table 22 shows a number that represents the number of flashes for the

specified code. For instance, a flash code entry of 3 indicates that the

control will energize the output for three 1/3 s on, 1/3 s off flashes, wait

two s, then energize the output for three more 1/3 s on, 1/3 s off flashes

and repeat.

Demand Defrost

The control maintains proper airflow through the outdoor coil during

heating operation by melting frost and ice that may form on the coil.

Frost may accumulate unevenly in different sections of the coil because

of the arrangement of the refrigeration circuit within the coil. The control

may initiate a defrost cycle even when the coil is not completely cov-

ered with frost. This is normal operation.

The control regulates the defrost operation of the heat pump based on

accumulated compressor run time, outdoor coil temperature, and out-

door ambient temperature. The control will cause the heat pump unit to

operate in the normal heating mode until it determines that a defrost

cycle is needed.

Figure 14: Demand defrost control module

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Table 21:

Status code display

No power to the control No faults active

Nothing energized OFF

Compressor operation

active No faults active

M energized ON

Control normal operation –

no call for compressor No faults active

Y not present 2s ON/2s OFF

Control normal operation –

in ASCD period

No faults active,

Y present, ASCD

timer not expired 0.1 sec ON/0.1 sec OFF

Table 22:

Status

Description STATUS LED

High-pressure switch fault (not in lockout yet) 2 Flashes

System in high-pressure switch lockout (last mode

of operation was normal compressor operation) 3 Flashes

System in high-pressure switch lockout

(last mode of operation was defrost) 4 Flashes

System in low-pressure switch lockout (last mode of

operation was normal compressor operation) 5 Flashes

Low Voltage (<19.2VAC) preventing further relay

outputs for > 2 s 6 Flashes

Low Voltage (<16VAC) stopped current relay

outputs for > 2 s 7 Flashes

Coil sensor failure (Open or Shorted) 8 Flashes

Outdoor ambient sensor failure (Open or Shorted) 9 Flashes

Control Failure 10 Flashes

5782374-UIM-B-0721

16 Johnson Controls Ducted Systems

Operation

The defrost mode is equivalent to the cooling mode except that the out-

door fan motor is de-energized. The control must do the following to ini-

tiate a defrost cycle.

• De-energize the outdoor fan.

• Energize the reversing valve.

• Energize the auxiliary heat output through the Wout terminal.

• Begin the maximum defrost cycle length timer.

If the call for heating (Y) is removed from the control during the defrost

cycle, it will terminate the defrost cycle and de-energize the compres-

sor. The control will also stop the defrost cycle length timer but not reset

it. When the control receives another call for heating, it will restart the

defrost cycle and the timer at the point at which the call for heating was

removed. This will happen only if the coil sensor temperature conditions

allow defrost to occur.

Defrost Curves

The control uses a set of defrost curve parameters that are selected

using the defrost curve selection jumper. The location of the defrost

curve selection jumper is shown on the Tabular Data sheet or Table 23

for each heat pump model.

Defrost Curve Selection

The second page of the Tabular Data Sheet or Table 23 indicates the

proper jumper setting for the specific heat pump model.

The control only reads the jumper input when the Y and W thermostat

inputs are de-energized. If a jumper position is changed while either of

these inputs is energized, the control will not act upon the jumper

changes until the thermostat calls are de-energized or power (24 VAC)

to the control is cycled.

COOLING CHARGE TABLE IS ON THE INSIDE OF THE CONTROL

BOX COVER.

Defrost Cycle Initiation

The control will allow the heat pump to operate in the heating mode until

the combination of outdoor ambient and outdoor coil temperatures indi-

cate that a defrost cycle is necessary.

The control will initiate a defrost cycle when the coil temperature is

below the initiate point for the measured ambient temperature continu-

ously for 4 1/2 minutes. See Figure 15. This delay eliminates unneces-

sary defrost cycles caused by refrigeration surges such as those that

occur at the start of a heating cycle.

The control will initiate a defrost cycle every 6 hrs (accumulated com-

pressor run time) to recirculate refrigerant lubricants. This forced

defrost timer will be reset and restarted following the completion or ter-

mination of a defrost cycle.

The control shall initiate a defrost cycle when the Defrost Inhibit Time

Limit has elapsed if the previous defrost cycle was terminated based on

the Maximum Defrost Cycle Time. This shall occur regardless of the liq-

uid line (coil) temperature reading. The coil does not have to be cold for

the unit to be forced into defrost. Once the defrost cycle begins the con-

trol shall follow the normal defrost cycle routine.

The control will also initiate a defrost cycle when the TEST terminals

are shorted. This feature allows an installer or service technician to start

a defrost cycle immediately as required. When the TEST terminals are

shorted for more than 5 s with a Y input energized and the pressure

switch input is closed, the ASCD will be bypassed, the reversing valve

will be energized, the ODF will be de-energized and the compressor

and the Wout terminal to auxiliary heat will be energized.

When the TEST inputs are used to force a defrost cycle, the control will

ignore the state of the coil temperature and outdoor ambient tempera-

ture inputs. The coil does not have to be cold and the outdoor tempera-

ture does not have to be within a certain range for the heat pump to be

forced into a defrost cycle. After the TEST input jumper is removed, the

defrost mode will be terminated as normal. The defrost cycle length

timer will not be started until the TEST input is removed. If the TEST ter-

minals remain shorted, the control will keep the unit in defrost mode.

Defrost Inhibition

The control will not initiate a defrost cycle if the liquid line temperature is

above 40°F unless the defrost cycle is forced using the TEST input, or

the previous defrost exited on maximum time (12 minutes).

The control will also prevent a defrost cycle from being initiated too

soon after the initiation of the previous defrost cycle. When power is

applied to the control and after the completion or termination of each

defrost cycle, the control will start a 40-minute timer. When this timer

expires, the control will allow another defrost cycle when needed. The

timer is based on accumulated compressor run time.

Defrost Termination

The control will terminate the defrost cycle immediately after the liquid

line temperature reaches the terminate temperature or after 12 minutes

of defrost operation. See Figure 15.

The control will do the following to terminate a defrost cycle:

• Energize the outdoor fan.

• De-energize the reversing valve.

• De-energize the auxiliary heat output through the Wout terminal.

• Reset and restart the 40-minute defrost inhibit timer.

COOLING OPERATION

During cooling operation, the control will receive thermostat signals at

the Y and O input terminals. The control will energize the M compressor

output terminal. This signal energizes the coil of the compressor con-

tactor causing the compressor to run. The control also delivers power to

the COND FAN terminals causing the outdoor fan to operate. The con-

trol energizes the REV VALVE terminal with 24 VAC to switch the

reversing valve.

HEATING OPERATION

During normal heating mode, the control will receive a thermostat signal

at the Y input terminal. The control will energize the M compressor out-

put terminal. This signal energizes the coil of the compressor contactor

causing the compressor to run. The control also delivers power to the

COND FAN terminals causing the outdoor fan to operate. The reversing

valve is not energized in heating mode.

Table 23:

Defrost jumper pin settings

Outdoor unit 18 24 30 36 42 48 60

Defrost jumper pin setting 2222222

Figure 15: Defrost operation curves

5(*,21&

7(50,1$7(&859(

,1+,%,7&859(

,1,7,$7(&859(

5(*,21$

5(*,21%

5(*,21'

5(*,21(

$0%,(177(03(5$785(

/,48,'/,1(&2,/7(03(5$785(

'HIURVWSUHYHQWHGIURPVWDUWLQJ

1RFDOOIRUGHIURVW

7LPH'HIURVWKRXUSUHYHQWHG

1RFDOOIRU'HIURVW

7LPH'HIURVWKRXUDOORZHG &DOOIRU'HIURVW

'HIURVW7HUPLQDWHG

$

5782374-UIM-B-0721

Johnson Controls Ducted Systems 17

EMERGENCY HEAT

When the thermostat calls for emergency heat operation (W signal with-

out a Y signal), the control will de-energize the compressor and ener-

gize the Wout terminal immediately.

PRESSURE SWITCH FAULT and LOCKOUT

The heat pump is equipped with a high pressure switch and low pres-

sure switch that are connected to the control at the pressure switch ter-

minals. If one of these switches input opens for more than 40

milliseconds, the control will de-energize the compressor. If the switch

closes and a thermostat call for compressor operation is present, the

control will apply the 5-minute anti short-cycle delay timer and start the

compressor when the timer expires.

When the compressor is started following a switch fault, the control will

start a 6-hour timer based on accumulated compressor run time. If the

control senses another opening of the switch before the timer expires, it

will cause a soft lockout condition. The second opening of the switch

must be greater than 160 milliseconds for the lockout to occur. If the

second opening is between 40 and 160 milliseconds, the control will de-

energize the compressor but not cause a soft lockout condition. If the

control does not sense a second switch opening before the 6-hour timer

expires, the timer and counter will be reset.

During the soft lockout mode, the control will de-energize the compres-

sor and energize the LED output with the appropriate flash code.

The control will reset the soft lockout condition when any of the follow-

ing occur after removal of the fault condition.

1. Power is cycled to the R or Y inputs of the control. This will cause

the soft lockout condition to be reset when the thermostat is satisfied

or when the thermostat is set to SYSTEM OFF and back to HEAT or

COOL mode.

2. The TEST terminals are shorted for more than 2 s.

When the soft lockout condition is reset, the control will stop displaying

the fault code and will respond to thermostat inputs normally.

SECTION X: INSTRUCTING THE OWNER

Assist owner with processing warranty cards and/or online registration.

Review Owners Guide and provide a copy to the owner and guidance

on proper operation and maintenance. Instruct the owner or the opera-

tor how to start, stop and adjust temperature setting.

When applicable, instruct the owner that the compressor is equipped

with a crankcase heater to prevent the migration of refrigerant to the

compressor during the OFF cycle. The heater is energized only when

the unit is not running. If the main switch is disconnected for long peri-

ods of shut down, do not attempt to start the unit until 8 hrs after the

switch has been connected. This will allow sufficient time for all liquid

refrigerant to be driven out of the compressor.

The installer should also instruct the owner on proper operation and

maintenance of all other system components.

MAINTENANCE

1. Dirt should not be allowed 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 suit-

able means.

2. The outdoor fan motor bearings are permanently lubricated and do

not require periodic oiling.

3. If the coil needs to be cleaned, it should be washed with Calgon

Coilclean (mix one part Coilclean to seven parts water). Allow solu-

tion to remain on coil for 30 minutes before rinsing with clean water.

Solution should not be permitted to come in contact with painted

surfaces.

4. Refer to the furnace or air handler instructions for filter and blower

motor maintenance.

5. The indoor coil and drain pan should be inspected and cleaned reg-

ularly to prevent odors and assure proper drainage.

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.

5782374-UIM-B-0721

18 Johnson Controls Ducted Systems

SECTION XI: WIRING DIAGRAM

Figure 16: Wiring diagram - single phase - 208/230V (demand defrost) PSC fan motor

BLU OR

BLK/PNK

FAN MOTOR

GND

BRN

RED

BLK

BRN

CAP

RED

USE COPPER

CONDUCTORS

ONLY

208-230 VAC 60 Hz

1 PHASE SUPPLY

CCH

COMPRESSOR

CONTACTOR

SEE UNIT INSTALLATION

INSTRUCTIONS FOR LOW

VOLTAGE TERMINATIONS

BLK

BLU

WHT

/BRN

ORG

YEL

RED

BLU

RED

RED BLK

GRY

RED

BLK

RED

BLK BLK

BLK

YEL 1

BRN

BLK

5603866-UWD-B-1119

BLK

HPS LPS

FIELD WIRING, LINE VOLTAGE

OPTIONAL OR MODEL SPECIFIC

LOW VOLTAGE FACTORY WIRING

HIGH VOLTAGE FACTORY WIRING

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 HEAT

PUMP IS SHUT OFF.

COMPONENTS SHOWN IN DASH 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 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.

LEGEND

AS - AMBIENT SENSOR

CAP - CAPACITOR

CC - CONTACTOR COIL

CCH - CRANKCASE HEATER

HPS - HIGH PRESS SWITCH

HS - HEATER SWITCH

CS - COIL SENSOR

LPS - LOW PRESS SWITCH

RV - REVERSING VALVE

SC - START CAPACITOR

SR - START RELAY

COLOR CODE

BLK - BLACK

BLK/PNK - BLACK w/PINK STRIPE

BLU - BLUE

BRN - BROWN

GRN - GREEN

GRY - GREY

ORG - ORANGE

PNK - PINK

PUR - PURPLE

RED - RED

WHT - WHITE

WHT/BRN - WHITE w/

BROWN STRIPE

YEL - YELLOW

DANGER - SHOCK HAZARD

CAUTION

BLK

YEL

BLU OR

BLK/PNK

C R O Y W Wout HPS LPS RV RVG CMCOIL AMBIENT

HIGH VOLTAGE

COND FAN

DEMAND DEFROST

BOARD

5782374-UIM-B-0721

Johnson Controls Ducted Systems 19

SECTION XII: START UP SHEET

Heat Pump and Supplementary Heat 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)

Supplementary 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

Rated BTU/H (furnaces)

Subject to change without notice. Published in U.S.A. 5782374-UIM-B-0721

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

Low

1 2

Medium Low Medium

3 4

Medium High High

A B DC

A B C D

Air Side: System Total External Static Pressure

Supply static before indoor coil (in w.c.")

Return Static (in w.c.") after lter (furnace side)

Cooling

Heat Pump

Indoor

Blower Set-Up

COOL

ADJUST

ECM

X-13

PSC

A B C D

DELAY

Supplementary

Heating

Indoor

Blower Set-Up

ECM

X-13

PSC

1 5

High

2 3 4

Low Medium

Low Medium Medium

High

B C

Outside Air:

Dry Bulb

Temperature DropReturn Air:

Dry Bulb

Supply Air:

Dry Bulb Wet BulbWet Bulb

Temperature Rise

Defrost Control Board

Demand DefrostYorkGuard VI Time and Temperature

Maximum Rated ESP (in w.c.")

Low Temp Cut Out Balance Point Defrost Curve Y2 Lock FFUEL Switch Point

Hot Heat Pump

Fill in the information ie.. "ON", "OFF" or the appropriate "Value" for the elds that apply to the defrost control board installed

Run Time: Time and Temperature board only 30, 60 or 90 minutesBonnet Sensor Present

HEAT

Refrigerant Charge and Metering Device

TXV Fixed OriceR-410A

Oz.

# 45s# Elbows

TXV #

Orice Size Liquid Line Temp

Subcooling Superheat

High Side Pressure Low Side PressureSuction Line Temp

Additional Lineset Length Adder per foot - lbs.

Total Added - lbs. Oz.

Cycle Test

Operate the unit through several heating cycles 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

Operate the unit through an emergency heating cycles, noting and correcting any problems

Installation debris disposed of and indoor and outdoor areas cleaned up?

Clean Up

Page 2 of 2

Owner Education

Explain operation of system to equipment owner

Explain the importance of regular lter replacement and equipment maintenance

Provide owner with the owner's manual

Explain thermostat use and programming (if applicable) to owner

Comments Section

Return Air:

Dry Bulb

Supply Air:

Dry Bulb Wet BulbWet Bulb

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