Carrier 25HPA530H0030010, 25HPA548H0030010, 25HPA560H0030010, 25HPA430A0030010, 25HPA436A0030010 Installation Guide

Installation Instructions

_rn to the Expertg

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock, or

other conditions which may cause death, personal injury, or
property damage. Consult a qualified installer, service agency, or

your distributor or branch for information or assistance. The
qualified installer or agency must use factory-authorized kits or

accessories when modifying this product. Refer to the individual
instructions packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions

thoroughly and follow all warnings or cautions included in
literature and attached to the unit. Consult local building codes

and National Electrical Code (NEC) for special requirements.

Recognize safety information. This is the safety-alert symbol ,/k
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.

Understand these signal words: DANGER. WARNING, and
CAUTION. These words are used with the safety-alert symbol.

DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards

which could result in personal injury or death. CAUTION is
used to identify unsafe practices which may result in minor

personal injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation,

reliability, or operation.

INSTALLATION RECOMMENDATIONS

NOTE: In some cases noise in the living area has been traced
to gas pulsations from improper installation of equipment.

1. Locate unit away from windows, patios, decks, etc. where
unit operation sound may disturb customer.

2. Ensure that vapor and liquid tube diameters are appropri-

ate for unit capacity.

3. Run refrigerant tubes as directly as possible by avoiding
unnecessary turns and bends.

4. Leave some slack between structure and unit to absorb vi-

bration.

5. When passing refrigerant tubes through the wall, seal
opening with RTV or other pliable silicon-based caulk.
(See Fig. 1.)

6. Avoid direct tubing contact with water pipes, duct work,

floor joists, wall studs, floors, and walls.

7. Do not suspend refrigerant tubing from joists and studs
with a rigid wire or strap which conms in direct contact

with tubing. (See Fig. 1.)

8. Ensure that tubing insulation is pliable and completely
surrounds vapor tube.

9. When necessary, use hanger straps which are 1 in. (25.4
mm) wide and conform to shape of tubing insulation. (See

Fig. 1.)

10. Isolate hanger straps from insulation by using metal
sleeves bent to conform to shape of insulation.

NOTE: Avoid contact belween tubing and struclure

ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury

or death.
Before installing, modifying, or servicing system, main

electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out and
tag switch with a suitable warning label.

IMPORTANT: Maximum liquid-line size is 3/8-in. OD for all
residential applications including long line.

IMPORTANT: Always install the factory-supplied liquid-line
filter drier. Obtain replacement filter driers from your distributor

or branch.

THROUGH THE WALL

1' (254 mm)MIN_l I_

SUSPENSION

Fig. 1 - Connecting Tubing Installation

When outdoor unit is connected to factory-approved indoor unit.
outdoor unit contains system refrigerant charge for operation with

ARI rated indoor unit when connected by 15 ft/4.57 m. of
field-supplied or factory accessory tubing. For proper unit

operation, check refrigerant charge using charging information
located on control box cover and/or in the Check Charge section

of this instruction.

LIQUID TUBE

A94028

INSTALLATION

Check Equipment and Job Site
Unpack Unit

Move to final location. Remove carton taking care not to damage
unit.

Inspect Equipment

File claim with shipping company prior to installation if shipment
is damaged or incomplete. Locate unit rating plate on unit corner
panel. It contains information needed to properly install unit.

Check rating plate to be sure unit matches job specifications.

Install on a Solid, Level Mounting Pad

If conditions or local codes require tire unit be attached to pad,
tiedown bolts should be used and fastened through knockouts

provided in unit base pan. Refer to unit mounting pattern in
Fig. 2 to determine base pan size and knockout hole location.

For hurricane tie downs, contact distributor for details and PE
Certification (Professional Engineer), if required.

On rooftop applications, mount on level platform or frame. Place
unit above a load-bearing wall and isolate unit and tubing set
from structure. Arrange supporting members to adequately

support unit and minimize transmission of vibration to building.
Consult local codes governing rooftop applications.

Roof mounted units exposed to winds above 5 mph may require
wind baffles. Consult the Service Manual - Residential Split

System Air Conditioners and Heat Pumps for wind baffle
construction.

NOTE: Unit must be level to within _+2 ° (_+3/8 in./ft.) per
compressor manufacturer specifications.

Clearance Requirements

When installing, allow sufficient space for airflow clearance,
wiring, refrigerant piping, and service. Allow 30 in. (762 mm)

clearance to service end of unit and 48 in. (1219.2 mm) above
unit. For proper airflow, a 6 in. (152.4 mm) clearance on 1 side of

unit and 12 in. (304.8 mm) on all remaining sides must be
maintained. Maintain a distance of 24 in. (609.6 mm) between

units. Position so water, snow, or ice from roof or eaves cannot
fall directly on unit.

3/8-1N DIA. TIEDOWN KNOCKOUTS
tN BASEPAN (2) PLACES

Operating Ambient

The minimum outdoor operating ambient in cooling mode is
55°F/12.78°C without low ambient cooling enabled, and the

maximum outdoor operating ambient in cooling mode is
125°F/51.67°C. The maximum outdoor operating ambient in

heating mode is 66 °F/18.89°C.

Elevate Unit

UNIT OPERATION HAZARD
Failure to follow this caution may result in equipment

damage or improper operation.
Unit must be kept free of an accumulation of water and/or ice

in the basepan.

Elevate unit per local climate and code requirements to provide
clearance above estimated snowfall level and ensure adequate

drainage of unit. If using accessory support feet. use installation
instructions from kit for installation.

EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment

damage or improper operation.
To prevent damage to the unit. ensure that it is located with

the supports such that the unit is stable in all circumstances
including adverse conditions.

Make Piping Connections

PERSONAL INJURY / ENVIRONMENTAL HAZARD

Failure to fnllow this warning could result in personal injury

or death.
Relieve pressure and recover all refrigerant before system

repair or final unit disposal.

Use all service ports and open all flow-control devices,

including solenoid valves.

B

FFtOM TOP

UNIT BASE PAN

DIMENSIONS

in. (mm)

29 1/2 X 33

(749.3 X 838.2)

36 1/2 X 4O

(927.1 X 1016)

TIEDO_ N KNOCKOUT LOCATIONS in.(ram)

z

A B C

10 1/16 5 5/8 23 3/4

(255.6) (142.9) (603.3)

9 5/8 6 13/16 28 3/4

(244.5) (173.0) (730.3)

A05177

Fig. 2 - Tiedown Knockout Requirements

On rooftop applications, locate unit at least 6 in. above roof
surface.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in equipment
damage or improper operation.

If ANY refrigerant tubing is buried, provide a 6 in. (152.4
mm) vertical rise at service valve. Refrigerant tubing lengths
up to 36 in.(914.4 mm) may be buried without further

special consideration. Do not bury lines longer than 36 in.
(914.4 mm).

UNIT DAMAGE HAZARD

Failure to follow this caution may result in equipment
damage or improper operation.

To prevent damage to unit or service valves, observe the
following:

• Use a brazing shield.

• Wrap service valves with wet cloth or use a heat sink
material.

Outdoorunitsmaybeconnectedto indoorsectionusing
accessorytubingpackageorfield-suppliedrefrigerantgrade

tubingofcorrectsizeandcondition.Fortubingrequirements
beyond80ft/24.38m,substantialcapacityandperformance

lossescanoccur.FollowingtherecommendationsintheLong

Pumpswillreducetheselosses.RefertoTable1foraccessory
requirements.RefertoTable2forfieldtubingdiameters.

Ifrefrigeranttubesorindoorcoilareexposedtoatmosphere,they
mustbeevacuatedto500micronstoeliminatecontaminationand

moistureinthesystem.

LineGuidelineforSplit-SystemAir ConditionersandHeat

Table1--AccessoryUsage

ACCESSORY COOLING APPLICATIONS LONG LINE APPLICATIONS* SEA COAST APPLICATIONS

Accumulator Standard Standard Standard

Compressor Start Assist Yes Yes No

Capacitor and Relay

Crankcase Heater Yes Yes No

Evaporator Freeze Thermostat No No

Isolation Relay (for non-Infinity systems only) No No

Liquid Line Solenoid Valve No No

Motor Master@ Control or Yes

Low Ambient Switch (for non-Infinity systems only)

Support Feet Recommended No Recommended

For tubing line sets between 80 and 200 ft (24.38 and 60.96 m) and/or 20 ft (6.09 m) vertical differential, refer to Residential Split-System Long_ine Application Guideline

REQUIRED FOR LOW-AMBIENT REQUIRED FOR REQUIRED FOR

(Below 55°F / 12.8°C) (Over 80 ft. / 24,38 m) (Within 2 miles / 3.22 kin)

Yes

(for non-Infinity systems only)

Yes

See Long- Line Application

Guideline

No No

Table 2--Refrigerant Connections and Recommended Liquid and Va

UNIT SIZE

Connection Diameter

018, 024

030, 036
042, 048

060

Notes:

1 Tube diameters are for total equivalent lengths up to 80 ft (24.38 m)
2 Do not apply capillary tube or fixed orifice indoor coils to these uNts
* For Tubing Set {engths between 80 and 200 ft (24.38 and 60.95 m) horizontal or 20 ft (610 m) vertical differential (250 ft./76.2 re)Total Equivalent Length),

refer to the Longline Guideline- Air Conditioners and Heat Pumps using Puron ® Refrigerant.

3/8
3/8

3/8
3/8

LIQUID

Tube Diameter

3/8
3/8

3/8
3/8

ISO 9001:2000

_or Tube Diameters (In.)

VAPOR

(up to 80 ft/24.38 m)

Connection Diameter Rated Tube Diameter

5/8 5/8

3/4 3/4

7/8 7/8

7/8 1 1/8

Pu ron

the_nvironmertaNysoundrefiigerant

IdealHumidi .

ARI 9_nd_rd _10/240

Unitary Nest P_mp_

@

Thinks. Heats. Saves.

Ready for use in a Hybrid Heat Duet Fuel system

®

This product has been designed and manufactured to
meet Energy Star@ criteria for energy efficiency when

m_ched with appropriate coil components¸ However,
proper refrigerant charge and proper air flow are critical

to achieve rated capacity and efficiency¸ Installation o1
this product should follow all manufactedn 9 refrigerant

charging and air flow instructions¸ Failure 1o confirm
proper charge and air {few may reduce energy

efficiency and shorten equipment life,

Outdoor Unit Connected to Factory Approved
Indoor Unit

These outdoor units are carefully evaluated and listed with
specific indoor coils for proper system performance.

Install Adapter Tube

1. Remove plastic retainer holding outdoor piston in liquid
service valve.

2. Check outdoor piston size with matching number listed on
unit rating plate.

3. Locate plastic bag taped to unit containing adapter tube.

4. Remove Teflon <_seal from bag and install on open end of
liquid service valve. (See Fig. 3.)

5. Remove adapter tube from bag and connect threaded nut
to liquid service valve. Tighten nut finger-tight and then
with wrench an additional 1/2 turn (15 ft-lb). DO NOT

OVER TIGHTEN!

TEFLON ® SEAL

PISTON

A05226

Fig. 3 - Liquid Service Valve with Sweat Adapter Tube

Refrigerant Tubing and Sweat Connections

Connect vapor tube to fitting on outdoor unit vapor service
valves (see Table 2). Connect liquid tubing to adapter tube on

liquid service valve. Use refrigerant grade tubing.

UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment

damage or improper operation.
Service valves must be wrapped in a heat-sinking

material such as a wet cloth while brazing.

UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment

damage or improper operation.
Installation of filter drier in liquid line is required.

Install Liquid Line Filter Drier Indoor

Refer to Fig. 4 and install filter drier as follows:

1. Braze 5 in. (127 mm) liquid tube to the indoor coil.

2. Wrap filter drier with damp cloth.

3. Braze filter drier to 5 in. (127 mm) long liquid tube from
step 1.

4. Connect and braze liquid refrigerant tube to the filter drier.

A05227

Fig. 4 - Liquid Line Filter Drier

Leak Testing

Leak test all joints: indoors, outdoors, and refrigerant tubing.

Evacuate Refrigerant Tubing and Indoor Coil

UNIT DAMAGE HAZARD

Failure to follow this caution may result in equipment

damage or improper operation.

Never use the system compressor as a vacuum pump.

Refrigerant tubes and indoor coil should be evacuated using the
recommended deep vacuum method of 500 microns. An alternate

triple evacuation method may also be used. See Service Manual
for Triple Evacuation Method.

IMPORTANT: Always break a vacuum with dry nitrogen.

Deep Vacuum Method

The deep vacuum method requires a vacuum pump capable of
pulling a vacuum of 500 microns and a vacuum gage capable of

accurately measuring this vacuum depth. The deep vacuum
method is the most positive way of assuring a system is free of air

and liquid water. (See Fig. 5. )

5OOO
4500
4000
3500

3000

e,,,,,

2500

2000

1500
1000

5OO

0 1 2 3 4 5 6

MINUTES

Fig. 5 - Deep Vacuum Graph

VACUUM TIGHT

TOO WET
TIGHT

DRY SYSTEM

A95424