Arcoaire PHD4 Manuale di istruzioni

Owner’s Information Manual

A09034

Fig. 1 – Unit PHD4 and WPH4

Our products are designed, tested and built in accordance with DOE standardized procedures; however, actual operating results and efficiencies may

vary based on manufacturing and supplier tolerances, equipment configuration, operating conditions and installation practices.

PHD4, WPH4

14 SEER Single and Three Phase

2-5 Nominal Tons (Sizes 24-60)

Single Packaged Heat Pump System with R-410A Refrigerant

Technician Name

Phone Number

Address

Company Name

Date Installed

NOTE TO EQUIPMENT OWNER:

For your convience, please record the model and serial numbers of your new equipment in the spaces

provided. This information, along with the installation data and dealer contact information, will be

helpful should your system require maintenance or service.

UNIT INFORMATION

ACCESSORIES (List type of model #)

INSTALLATION INFORMATION

DEALERSHIP CONTACT INFORMATION

This manual must be left with the eqipment owner.

NOTE TO INSTALLER:

Model #

Serial #

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 a 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, the current editions of the National

Electrical Code (NEC) NFPA 70.

In Canada refer to the current editions of the Canadian electrical Code

CSA C22.1.

Recognize safety information. This is the safety-alert symbol . 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.

NOTE: Installer: This manual should be left with the equipment user.

Operating Your Unit

The operation of your heat pump system is controlled by the indoor

thermostat. You simply adjust the thermostat and it maintains the indoor

temperature at the level you select. Most thermostats of heat pump

systems have 3 controls: a temperature control selector, a FAN control,

and a SYSTEM or MODE control. Refer to your thermostat owner’s

manual for more information.

To better protect your investment and to eliminate unnecessary service

calls, familiarize yourself with the following facts:

1. During heating, increasing the desired temperature setting more

than 2°F (1.1°C) may cause the supplemental heaters to be turned

on for a short period of time to satisfy the demand. Needless use of

the supplementary heat reduces potential energy savings.

2. Ice or frost tends to form on the coil during winter heating

operation. Your unit is designed to automatically melt the ice. When

in this defrost cycle, it is normal for steam or fog to rise from the

outdoor unit, and for water to drain from the outside of unit. Do not

be alarmed!

To start the unit:

1. Turn on the electrical power supply to unit.

2. Set MODE control to desired mode and select temperature.

To shut off unit:

NOTE: If the unit is being shut down because of a malfunction, call

your dealer as soon as possible.

1. Set system MODE control to OFF.

2. Turn off the electrical power supply to unit.

Cooling Mode

With the SYSTEM or MODE control set to COOL, your unit will run in

cooling mode until the indoor temperature is lowered to the level you

have selected. On extremely hot days, your unit will run for longer

periods at a time and have shorter “off” periods than on moderate days.

Heating Mode

With the SYSTEM or MODE control set to HEAT, your unit will run in

heating mode until the room temperature is raised to the level you have

selected. Of course, your unit will run for longer periods to maintain a

comfortable environment on cooler days and nights than on moderate

ones.

Supplemental Heat

Your unit is your primary heating source. Your system may also be

equipped with a supplemental heating source such as electric heat. On

cold days and nights, your system will automatically turn on the

supplemental heat, as needed, in order to maintain the level of comfort

you have selected.

When your heat pump needs additional heat to keep you comfortable

your thermostat will turn on the supplemental heat (if equipped).

Defrost Mode

When your unit is providing heat to your home or office and the outdoor

temperature drops below 45°F (7.2°C), moisture may begin to freeze on

the surface of the coil. If allowed to build up, this ice would impede

airflow across the coil and reduce the amount of heat absorbed from the

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death,

and/or property damage.

Installation and servicing of this equipment can be hazardous due to

mechanical and electrical components. Only trained and qualified

personnel should install, repair, or service this equipment.

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death or

property damage.

Do not use this unit if any part has been under water. Immediately call a

qualified service technician to inspect the unit and to replace any part of

the control system which has been under water.

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before performing recommended maintenance, be sure the main power

switch to unit is turned off and a lock-out tag is installed. There may be

more than one disconnect switch.

CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury.

Sheet metal parts may have sharp edges or burrs. Use care and wear

appropriate protective clothing, safety glasses and gloves when

handling parts and servicing furnaces.

PHD4, WPH4: Owner’s Information Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

outside air. So, to maintain energy-efficient operation, your unit has an

automatic defrost mode.

The defrost mode starts at a preset time interval of 60 minutes, although,

it may be reset to 30, 90 or 120 minutes. Defrost will start at the preset

time only if the ice is sufficient to interfere with normal heating

operation.

After the ice is melted from the coil, or after a maximum of 10 minutes

in defrost mode, the unit automatically switches back to normal heating

operation.

Do not be alarmed if steam or fog appears at the outdoor unit during

defrost mode. Water vapor from the melting ice may condense into a

mist in the cold outside air.

During certain weather conditions such as heavy snow and freezing rain

it is not uncommon for ice to build up on the unit grille. This is normal

for these weather conditions. Do not attempt to remove the ice from the

unit grille. This condition will not affect the proper function of the unit

and will clear within a few days.

Emergency Heating Mode

In the event of primary unit heat failure, the emergency heat mode

allows your supplemental heating source to keep your home or office

warm until your unit can be serviced. Contact your dealer in the event of

primary unit heat failure.

Maintenance and Service

This section discusses maintenance that should be performed by your

dealer and care you, as the owner, may wish to handle for your new unit.

Routine Maintenance

All routine maintenance should be handled by skilled, experienced

personnel. Your dealer can help you establish a standard procedure.

To assure proper functioning of the unit, flow of condenser air must not

be obstructed from reaching the unit. Clearance from the top of the unit

is 48 in. (1219 mm). Clearance of at least 36 in. (914 mm) is required on

sides except the power entry side (42 in. [1067 mm] clearance) and the

duct side (12 in. [305 mm] minimum clearance).

Maintenance and Care for the Equipment Owner

Before proceeding with those things you might want to maintain

yourself, please carefully consider the following:

Air Filters

The air filter(s) should be checked every 3 or 4 weeks and changed or

cleaned whenever it becomes dirty. Dirty filters produce excessive stress

on the blower motor and can cause the motor to overheat and shut down.

This unit must have an air filter in place before it can be operated. These

filters should be located in at least one of two places. In many

applications, the installer will provide return air filter grilles mounted on

the wall or ceiling of the conditioned structure. In the instance of filter

grilles, the filters can simply be removed from the grille and replaced.

The other typical application is an accessory filter rack installed inside

the unit itself. The following information is given to assist in changing

filters used in these internal filter racks.

Filter kits are available as a purchased accessory or a factory installed

option. The same filter kit is included with the accessory economizers

and factory installed economizers.

To replace or inspect filters in accessory filter rack:

1. Remove the filter access panel (See Fig. 3) using a 5/16-in. nut

driver.

2. Remove the filter(s) by pulling it out of the unit. If the filter(s) is

dirty, clean or replace with a new one.

When installing the new filter(s), note the direction of the airflow arrows

on the filter frame.

If you have difficulty locating your air filter(s) or have questions

concerning proper filter maintenance, contact your dealer for

instructions. When replacing filters, always use the same size and type of

filter that was supplied originally by the installer. See Table 1 for filter

sizes supplied with accessory filter rack.

A09044

Fig. 2 – Accessory Filter Rack Access Panel

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK, CUT

HAZARD

Failure to follow this warning could result in personal injury, death or

property damage.

1. TURN OFF ELECTRICAL POWER TO YOUR UNIT BEFORE

SERVICING OR PERFORMING MAINTENANCE AND

INSTALL A LOCK-OUT TAG. THERE MAY BE MORE THAN

ONE DISCONNECT SWITCH.

2. When removing access panels or performing maintenance

functions inside your unit, be aware of sharp sheet metal parts and

screws. Although special care is taken to reduce sharp edges to a

minimum, be extremely careful when handling parts or reaching

into the unit.

Table 1 – Replacement Filter Sizes

Unit Size Filter Size

24 2 each 20 x 12 x 1

(508 x 305 x 25 mm)

30 2 each 20 x 12 x 1

(508 x 305 x 25 mm)

42-48 1 each 24 x 14 x 1 (610 x 356 x 25 mm),

24 x 16 x 1 (610 x 406 x 25 mm)

36 & 60*

*.Units with bent indoor coil.

1 each 24 x 16 x 1 (610 x 406 x 25 mm),

24 x 18 x 1 (610 x 457 x 25 mm)

WARNING

FIRE AND UNIT OPERATION HAZARD

Failure to follow this warning could result in personal injury, death or

property damage.

Never operate your unit without filters in place. An accumulation of

dust and lint on internal parts of your unit can cause loss of efficiency.

Access Panels

Filter Access Panel

For Accessory Filter Rack

PHD4, WPH4: Owner’s Information Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

A10063

Fig. 3 – Small Chassis Filter Access

Replacing or inspecting filters in units with

economizers

Small Chassis (See Fig. 3)

1. Remove return air duct cover at rear of unit using a 5/16-in. nut

driver.

2. Remove the filter(s) by pulling it out and through the unit duct

opening. If filter is dirty, replace both filters with new ones.

A10062

Fig. 4 – Large Chassis Filter Access

When installing the new filters, note the direction of the airflow arrows

on the filter frame, which should be pointing at the indoor coil.

3. Reinstall duct cover ensuring opening is air and water tight.

Large Chassis (See Fig. 4)

1. Remove filter access door using a 5/16-in. nut driver.

2. Remove the filter(s) by pulling it out and through the unit filter

access door. If filter is dirty, replace both filters with new ones.

Units with bent indoor coils, install 24 x 18 x 1 (610 x 457 x 25 mm)

filter first and then install 24 x 16 x 1 (610 x 406 x 25) filter.

When installing the new filters, note the direction of the airflow arrows

on the filter frame, which should be pointing at the indoor coil.

3. Reinstall filter access door ensuring opening is air and watertight.

Fans and Fan Motor

Periodically check the condition of fan wheels and housings and

fan-motor shaft bearings. Contact your dealer for the required annual

maintenance.

Indoor and Outdoor Coils

Cleaning of the coils should only be done by qualified service personnel.

Contact your dealer for the required annual maintenance.

Condensate Drain

The drain pan and condensate drain line should be checked and cleaned

at the same time the cooling coils are checked by your dealer.

Compressor

All compressors are factory shipped with a normal charge of the correct

type and quantity of refrigeration grade oil.

Condenser Fan

The fan must be kept free of all obstructions to ensure proper cooling.

Contact your dealer for any required service.

Electrical Controls and Wiring

Electrical controls are difficult to check without proper instrumentation.

If there are any discrepancies in the operating cycle, contact your local

dealer and request service.

Refrigerant Circuit

The refrigerant circuit is difficult to check for leaks without the proper

equipment. If inadequate cooling is suspected, contact your local dealer

for service.

Unit Panels

After performing any maintenance or service on the unit, be sure all

panels are fastened securely in place to prevent rain from entering unit

cabinet and to prevent disruption of the correct unit airflow pattern.

Regular Dealer Maintenance (Also refer to Table 2)

In addition to the type of routine maintenance you might be willing to

perform, your unit should be inspected regularly by a properly trained

service technician. An inspection (preferably each year) should include

the following:

1. Inspection and, if required, cleaning of the outdoor and indoor

coils.

2. Inspection and, if required, cleaning of the indoor coil drain pan.

3. Inspection and cleaning of blower wheel housing and motor.

4. Inspection of all supply and return air ducts for leaks, obstructions,

and insulation integrity. Any problems found should be resolved at

this time.

5. Inspection of the unit base to ensure that no cracks, gaps, etc., exist

which may cause a hazardous condition.

6. Inspection of the unit casing for signs of deterioration.

7. Inspection of all electrical wiring and components to assure proper

connection.

8. Inspection for leaks in the refrigerant circuit. Pressure and

temperature check to determine appropriate refrigerant charge.

9. Operational check of the unit to determine working conditions.

Repair or adjustment should be made at this time.

RETURN

DUCT COVER

(Remove for

lter access)

SMALL CHASSIS

LARGE CHASSIS

FILTER

ACCESS

PANEL

WARNING

PERSONAL INJURY AND UNIT DAMAGE HAZARD

Failure to follow this warning could result in personal injury, death or

property damage.

Do not poke sticks, screwdrivers, or any other object into revolving fan

blades.

WARNING

EXPLOSION, BURN AND ENVIRONMENTAL HAZARD

Failure to follow this warning could result in personal injury, death or

property damage.

System under pressure. 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.

PHD4, WPH4: Owner’s Information Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Your servicing dealer may offer an economical service contract that

covers seasonal inspections. Ask for further details.

Complete service instructions can be found in the unit Installation,

Start-up and Service Instructions.

Warranty Certificate

Your unit has a limited warranty. Be sure to read the warranty carefully

to determine the coverage for your unit.

Before you call for service...

...check for several easily solved problems.

If insufficient heating or cooling is suspected:

( ) Check for sufficient airflow. Check the air filter for dirt. Check for

blocked return or supply air grilles. Be sure they are open and

unobstructed. If these checks do not reveal the cause, call your servicing

dealer.

If your unit is not operating at all, check the following list for easy

solutions:

( ) Check to be sure that your thermostat temperature selector is set

below the indoor temperature during the cooling season or above the

indoor temperature during heating season. Be sure the SYSTEM switch

or MODE control is in the COOL or HEAT and not OFF.

( ) If your unit still fails to operate, call your servicing dealer for

troubleshooting and repairs. Specify the model and serial numbers of

your unit. (Record them in this manual in the space provided.) If the

dealer knows exactly which unit you have, he may be able to offer

suggestions over the phone, or save valuable time through

knowledgeable preparation for the service call.

In Case of Trouble

If you perform the steps above and unit performance is still

unsatisfactory, shut off the unit and call your dealer.

A Carrier Company

Edition Date: 08/20 Catalog No: 518022001107

Replaces: 518022001106

PHD4, WPH4: Owner’s Information Manual

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Table 2 – Maintenance Checklist

Monthly maintenance items and outdoor unit rinsing may be performed by the consumer. All other maintenance items and all service work must be

performed by a qualified service technician. Read all Warning labels.

Description of Maintenance Recommended Interval

Consumer specific: Monthly Annual

Inspect, clean, or replace air filter if filter is located indoors in return air duct. X

Clear away debris and vegetation near unit. X

Dealer specific:

Inspect cabinet and basepan for damage. Replace panels, gaskets, and other components that are damaged or severely

rusted. Make sure precipitation has not entered indoor section of unit. X

Inspect electrical disconnect for proper function. Repair or replace as necessary. X

Inspect electrical wiring and connections. Tighten loose connections. Inspect and perform functional test of equipment as

needed to ensure proper function. Repair or replace damaged or overheated components and wiring. X

Inspect electric heater, if installed. Check for signs of overheating of elements, controls, and wiring. Make sure heater

elements are not broken or electically shorted. X

Check refrigerant system subcooling and/or superheat (system dependent). X

Inspect inside of unit. Clean if debris is present. X

Inspect condenser coil. Clean if dust, dirt, or debris is present. Rinse unit with fresh water (see Note 2). X

Inspect condenser motor and fan for damage. Make sure fan spins freely. X

Inspect and clean blower assembly (includes blower housing, wheel, and motor). X

Inspect evaporator coil. Clean if dust, dirt, or debris is present (see Note 2). X

Clean condensate pan and drain lines (more frequent maintenance may be required in humid climates). X

Inspect airflow system (ductwork). Check for leaks and repair as needed. X

Notes:

1. The above list may not include all maintenance items. Inspection intervals may vary depending on climate and operating hours. Consult your HVAC dealer about a service

contract for seasonal inspections.

2. Do not use harsh chemicals or high pressure water on coils. More frequent rinsing is required for units near a sea coast.

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