Johnson Controls RHP150 Series Bedienungsanleitung

6255935-UIM-B-0623

York International Corporation, 5005

York Drive, Norman, OK 73069

2023-06-20

Johnson Controls Ducted Systems

Installation Manual: R-410A Outdoor Split-

System Heat Pump - YH2F, THF2, RHP150

Series

Supersedes: 6255935-UIM-A-0922

2 Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series

Johnson Controls Ducted Systems

Contents

ContentsGeneral......................................................................................5

Certification.............................................................................. 5

Safety.........................................................................................5

Inspection........................................................................... 5

Requirements for installing/servicing R-410A

equipment...........................................................................5

Limitations.......................................................................... 5

Unit installation........................................................................ 6

Location...............................................................................6

Add-on replacement/retrofit............................................6

Ground installation............................................................ 8

Roof installation................................................................. 8

Wall mount installation..................................................... 8

Placing the unit...................................................................8

Liquid line filter-drier.........................................................8

Piping connections.............................................................9

Precautions during line installation.................................9

Precautions during brazing of lines...............................10

Precautions during brazing of service valve.................10

Connecting the refrigerant lines.............................. 10

Indoor expansion device.......................................................11

Installing the thermostatic expansion valve (TXV)...... 11

Evacuation...............................................................................13

System charge........................................................................13

Measuring indoor airflow............................................... 13

Charging the unit............................................................. 13

Determining the total system charge............................14

Charging with gauges..................................................... 14

Subcooling charging charts...................................... 15

Heating charging charts............................................24

Electrical connections............................................................31

General information and grounding............................. 31

Field connections power wiring..................................... 31

Field connections control wiring....................................32

Control wiring diagrams........................................... 33

Dehumidification control (typical)................................. 35

Indoor cubic feet per minute (CFM) settings

(typical)..............................................................................35

System start-up...................................................................... 36

Energize crankcase heater (if applicable)..................... 36

System operation...................................................................36

Anti short-cycle delay...................................................... 36

Low voltage detection..................................................... 36

Test input.......................................................................... 36

Fault code display............................................................ 38

Demand defrost......................................................... 39

Operation.................................................................... 39

Defrost curves.............................................................39

Defrost curve selection..............................................39

Defrost cycle initiation...............................................39

Defrost inhibition....................................................... 39

Defrost termination................................................... 40

Cooling operation...................................................... 40

Heating operation......................................................40

Emergency heat......................................................... 40

Pressure switch fault and lockout............................40

Instructing the owner............................................................40

Maintenance.....................................................................41

Wiring diagrams.....................................................................42

Start-up sheet.........................................................................44

Johnson Controls Ducted Systems

Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series 3

4 Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series

Johnson Controls Ducted Systems

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

nominally 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 correct selection.

Certification

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 damage.

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 assistance. 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 equipment. Service

equipment must be rated for R-410A.

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

You must install the unit in accordance with all national,

state, and local safety codes, and the following limitations:

• Limitations for the indoor unit, coil, and appropriate

accessories must also be observed.

• 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.

• The maximum and minimum conditions for operation

must be observed to ensure a system that gives

maximum performance with minimum service.

Table 1: Maximum and minimum operating limit

conditions

Air temperature at

outdoor coil °F

Air temperature at indoor

coil °F

Minimum Maximum Minimum Maximum

cool

heat

cool

heat

cool

heat

cool

heat

55 0 125 75 57 50 72 80

Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series 5

Johnson Controls Ducted Systems

Note:

• Operation below this temperature is permissible

for a short period of time, during morning

warm-up.

• The unit must 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 factory-installed for installations over the

maximum allowable line length.

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 Figure 1 and Figure 2.

NOTICE

For multiple unit installations, units must be spaced a

minimum of 24 in. (61 cm) apart (coil face to coil face).

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 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 . 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/retrofit

About this task:

When using this unit as a replacement for an R-410A

unit, you must replace the outdoor unit, indoor coil,

and metering device. Do the following to ensure correct

system operation and performance. Change out the

refrigeration piping where possible.

1. Change out the indoor coil to an approved

R-410A coil or outdoor unit combination with the

appropriate metering device.

2. Change out the refrigeration piping when replacing

an R-22 unit with an R410-A unit to reduce cross-

contamination of oils and refrigerants.

3. If a change-out of the refrigeration piping is not

practical, then take the following precautions:

- Inspect the refrigeration piping 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 refrigeration piping 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 contaminants, and remove after 50

h 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 field-

installed biflow liquid-line drier. Operate the

system for 10 h. Monitor the suction drier pressure

drop. If the pressure drop exceeds 3 psig, replace

both the suction-line and liquid-line driers. After

a total of 10 h runtime 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.

Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series6

Johnson Controls Ducted Systems

Figure 1: Typical installation clearances

Figure 2: Alternative installation clearances

Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series 7

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

maintaining the clearances shown in Figure 1 and Figure

Normal operating sound levels may be objectionable if

the unit is placed directly under windows of certain rooms

such as a bedroom or study.

Condensate drains from beneath the coil of the outdoor

unit during the defrost cycle. Normally this condensate

may be allowed to drain directly on the ground.

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.

Elevate the unit sufficiently to prevent any blockage of the

air entrances by snow in areas where snow accumulates.

Check with 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 supporting the total weight of the unit,

including a pad, lintels, and rails, which must be 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 transmission 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 integrity, 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.

Placing the unit

NOTICE

Heat pumps 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.

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 filter-drier is packaged and shipped along with the

outdoor unit. Locate the filter-drier outside the unit

next to the service valves or at the indoor coil before the

metering device.

CAUTION

Filter-drier is required to be installed in liquid line. The

recommended location is at the indoor coil before the

refrigerant metering device. It can be installed at the

outdoor unit if desired.

CAUTION

Using a granular type drier may result in damage to

the equipment.

CAUTION

Filter-drier must be wrapped in wet rag while brazing.

NOTICE

Replacements for the liquid line drier must be bi-flow

and an approved replacement from Source 1.

Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series8

Johnson Controls Ducted Systems

R-410A filter-drier Source

1 Part Number

Applicable models

S1-404101 All heat pumps

Piping connections

The outdoor unit must be connected to the indoor coil

using field-supplied refrigerant grade (ACR) copper tubing

that is internally clean and dry. Only install the unit 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 247077)

for installing tubing of longer lengths and elevation

differences.

NOTICE

Using a larger than specified line size could result

in oil return problems. Using too small a line results

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 outdoor unit to facilitate sufficient oil return. If

more than the 80 ft line length is necessary, facilitate

sufficient 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 pressures 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.

Precautions during line installation

• Install the lines with as few bends as possible. Take

care 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, take care to

avoid sharp bends which may cause a restriction.

• Install the lines so that they do not obstruct service

access to the coil, air handling system, or filter.

• Take care to isolate the refrigerant lines to minimize

noise transmission from the equipment to the

structure.

• Insulate the vapor line with a minimum of 1/2 in.

foam rubber insulation (Armaflex or equivalent).

Liquid lines exposed to direct sunlight, high

temperatures, or excessive humidity must also be

insulated.

• Tape and suspend the refrigerant lines as shown. Do

not allow tube metal-to-metal contact. See Figure 3.

• 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.

Figure 3: Installation of vapor line

• Pack fiberglass insulation and a sealing material such

as permagum around refrigerant lines where they

penetrate a wall to reduce vibration and to retain

some flexibility.

• For systems with total line length exceeding 80 ft

(22.86 m), refer to 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, system charging, traps, and crankcase

heater.

Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series 9

Johnson Controls Ducted Systems

Figure 4: Underground installation

Precautions during brazing of lines

All outdoor unit and indoor 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 precautions to assure an internally clean and

dry system.

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 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.

Precautions during brazing of service

valve

Wrap a wet rag around the service valve to prevent heat

damage. See Figure 5. Also, protect all painted surfaces,

insulation, and the plastic base during brazing. After

brazing, cool the joint with a wet rag.

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.

Open the valve by removing the service valve cap and

fully inserting a hex wrench into the stem and backing

out counterclockwise until the valve stem just touches the

chamfered retaining wall.

Connecting the refrigerant lines

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 connections 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 connection 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. See Indoor expansion device.

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. See Evacuation.

Installation Manual: R-410A Outdoor Split-System Heat Pump - YH2F, THF2, RHP150 Series10

Johnson Controls Ducted Systems

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