HP H2H3, N2H3 User Manual

INSTALLATION INSTRUCTIONS

3-phase R-22 Split System Heat Pump

Product Family: N2H3, H2H3

These instructions must be read and understood completely before attempting installation.

Safety Labeling and Signal Words

DANGER, WARNING, CAUTION, and NOTE

The signal words DANGER, WARNING, CAU‐ TION, and NOTE are used to identify levels of haz‐

ard seriousness. The signal word DANGER is only used on product labels to signify an immediate haz‐ ard. The signal words WARNING, CAUTION, and NOTE will be used on product labels and through‐ out this manual and other manuals that may apply to the product.

DANGER - Immediate hazards which will result in severe personal injury or death.

WARNING - Hazards or unsafe practices which could result in severe personal injury or death.

CAUTION - Hazards or unsafe practices which may result in minor personal injury or product or

property damage.

NOTE - Used to highlight suggestions which will result in enhanced installation, reliability, or opera‐ tion.

Signal Words in Manuals

The signal word WARNING is used throughout this manual in the following manner:

WARNING

The signal word CAUTION is used throughout this manual in the following manner:

Signal Words on Product Labeling

Signal words are used in combination with colors and/or pictures on product labels.

WARNING

CAUTION

TABLE OF CONTENTS

Inspect New Unit 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Considerations 2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Location 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clearances 2 - 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unit Support 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Refrigeration System 4 - 9. . . . . . . . . . . . . . . . . . . . . . . .

Electrical Wiring 9 - 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Defrost System 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Start-up Procedure 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Refrigerant Charge 12 - 13. . . . . . . . . . . . . . . . . . . . . . . .

Sequence of Operation 13. . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Comfort Alertt Diagnostics Codes 15. . . . . . . . . . . . . .

DEATH, PERSONAL INJURY, AND/OR PROPERTY DAMAGE HAZARD

Failure to carefully read and follow this warning could result in equipment malfunction, property damage, personal injury and/or death.

Installation or repairs made by unqualified per‐ sons could result in equipment malfunction, prop‐ erty damage, personal injury and/or death.

The information contained in this manual is in‐ tended for use by a qualified service technician fa‐ miliar with safety procedures and equipped with the proper tools and test instruments.

Installation must conform with local building codes and with the National Electrical Code NFPA70 current edition or Canadian Electrical Code Part 1 CSA C.22.1.

WARNING

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INSTALLATION INSTRUCTIONS 3-phase R-22 Split System Heat Pump

INSPECT NEW UNIT

After uncrating unit, inspect thoroughly for hidden damage. If damage is found, notify the transportation

SAFETY CONSIDERATIONS

Consult a qualified installer, service agency, or the dealer/distributor for information and assistance. The qualified installer must use factory authorized kits and accessories when modifying this product. Refer to the individual instructions packaged with the kit or accessory when installing.

The weight of the product requires careful and proper handling procedures when lifting or moving to avoid personal injury. Use care to avoid contact with sharp or pointed edges.

Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use a heat sinking material such as a wet rag - during brazing operations. Keep a fire extinguisher available. Consult local codes and the National Electric Code (NEC) for special requirements.

LOCATION

Check local codes for regulations concerning zoning, noise, platforms, and other issues.

Locate unit away from fresh air intakes, vents, or bedroom windows. Noise may carry into the openings and disturb people inside.

Locate unit in a well drained area, or support unit high enough so that water runoff will not enter the unit.

Locate unit away from areas where heat, lint, or exhaust fumes will be discharged onto unit (as from dryer vents).

company immediately and file a concealed damage claim.

Improper installation, adjustment, alteration, service or maintenance can void the warranty.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in per‐ sonal injury or death.

Before installing, modifying or servicing system, turn OFF the main (remote) electrical disconnect device. There may be more than one disconnect device.

Locate unit away from recessed or confined areas where recirculation of discharge air may occur (refer to CLEARANCES section of this document).

Roof-top installation is acceptable providing the roof will support the unit and provisions are made for water drainage and noise/vibration dampening.

NOTE: Roof mounted units exposed to wind may require wind baffles. Consult the manufacturer for additional information.

WARNING

CLEARANCES

Nominal minimum clearances are 48 inches above unit for discharge air and 18 inches on each side of the coil for intake air. Clearance on any one side of the coil (normally between unit and structure) may be reduced to 6 inches. Nominal minimum clearances are based on a solid parallel object such as a wall or roof overhang.

The clearance may be reduced for a single object with small surface area, such as the end of a wall, outside corner of a wall, fence section, post, etc. As a general rule, the minimum clearance from the unit should equal the width of the object. For example, a 6 inch fence post should be a minimum of 6 inches from the unit.

Do not install unit under roof overhangs unless gutters are present. A minimum vertical clearance of 48 inches is required to the overhang.

Inside corner locations on single story structures require evaluation. Large overhanging soffits may cause air recirculation in a corner area even though recommended minimum clearances are maintained. As a guide, locate the unit far enough out so that half of the discharge grille is out from under the soffit.

When placing two or more units side-by-side, provide a minimum of 18 inches between units.

Provide minimum service clearance of 24 inches from control box corner and side service panel.

Refer to Figure 1.

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INSTALLATION INSTRUCTIONS 3-phase R-22 Split System Heat Pump

Figure 1 Clearances (various examples)

24”

Service

Wall

6”

18”

Wall

6”

18”

Wall

24”

Service

Wall

6”

18”

Wall

6”

24”

Service

18”

24”

Service

4”

18”

4” wide fence

Wall

24”

Service

24”

Service

18”

6”

6” Post

24”

Service

18”

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INSTALLATION INSTRUCTIONS 3-phase R-22 Split System Heat Pump

UNIT SUPPORT

NOTE: Unit must be level | 2 degrees (a inch rise or fall

per foot of run) or compressor may not function properly.

A. GROUND LEVEL INSTALLATION

The unit must be level and supported above grade by beams, platform, or a pad. Platform or pad can be of open or solid construction but should be of permanent materials such as concrete, bricks, blocks, steel, or pressure- treated timbers approved for ground contact. Soil conditions must be considered so that the platform or pad does not shift or settle and leave the unit partially supported. Minimum pad dimensions are shown in Figure

2. If beams or an open platform are used for support, it is

recommended that the soil be treated or area be graveled to reduce the growth of grasses and weeds.

To minimize vibration or noise transmission, it is recommended that supports not be in contact with the building structure. However, slabs on grade constructions with an extended pad are normally acceptable.

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in proper‐ ty damage.

Top surface of platform must be above estimated snowfall level to prevent snow blocking coil and to allow water melt to drain from unit.

B. ROOF TOP INSTALLATION

This type of installation is not recommended on wood frame structures where low noise levels are required.

Supporting structure or platform for the unit must be level. If installation is on a flat roof, locate unit minimum 6 inches above roof level.

Place the unit over one or more load bearing walls. If there are several units, mount them on platforms that are self-supporting and span several load bearing walls. These suggestions are to minimize noise and vibration transmission through the structure. If the structure is a home or apartment, avoid locating the unit over bedrooms or study.

NOTE: When unit is to be installed on a bonded guaranteed roof, a release must be obtained from the building owner to free the installer from all liabilities.

CAUTION

C. FASTENING UNIT DOWN

If conditions or local codes require the unit be attached in place, remove the knockouts in the base pan and install tie down bolts through the holes (refer to Figure 2).

Contact local distributor for hurricane hold-down details and the P.E. (Professional Engineer) certification, when required.

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in proper‐ ty damage.

Inadequate unit support may cause excessive vibration, noise, and/or stress on the refrigerant lines, leading to refrigerant line failure.

Figure 2 Tie Down Knockouts

Base Pan

Width x Depth

@%w” ~ @^c” (8” $v” @!4” @^ X~ @^2” #!x” ~ #@v” (8” ^b” @$n” #!2 ~ #@2”

#%” ~ #^b” (8” ^b” @*v” #%” ~ #^2”

CAUTION

a” dia. Tie Down Knockouts In Base Pan (2 places)

VIEW

FROM

TOP

Base Pan Width

Tie Down

Knockouts

A B C

Base

Pan

Depth

Minimum

Mounting Pad

Dimensions

REFRIGERATION SYSTEM

A. COMPONENT MATCHES

Check to see that the proper system components are in place, especially the indoor coil.

R-22 outdoor units can only be used with R-22 specific indoor coils. If there is a refrigerant mis-match, consult the indoor coil manufacturer to determine if a refrigerant conversion kit is available for the indoor coil.

4 506 01 5001 00

This outdoor unit is designed for use only with indoor coils that utilize a hard shut-off TXV refrigerant metering device. If any other type of metering device is installed on the indoor coil, consult the indoor coil manufacturer to determine if a hard shut-off TXV conversion kit is available.

INSTALLATION INSTRUCTIONS 3-phase R-22 Split System Heat Pump

B. REFRIGERANT LINE SETS

PRODUCT DAMAGE HAZARD

Failure to follow this caution may result in product damage.

Indoor coil and outdoor unit must be listed as a certified combination (match) in the ARI Unitary Directory of Certified Products. Indoor coil must have R-22 specific, hard shut-off TXV refrigerant metering device.

When installing a hard shut-off TXV on an indoor coil, follow the instructions provided with the new TXV.

A typical hard shut-off TXV installation is shown in Figure

Figure 3 Typical TXV Installation

EQUALIZER TUBE

SENSING BULB

HARD SHUT-OFF TXV

SENSING BULB (EITHER SIDE)

8 O'CLOCK 4 O'CLOCK

CAUTION

INDOOR

COIL

SUCTION

TUBE

SUCTION TUBE

LIQUID TUBE

STRAP

The refrigerant line set must be properly sized to assure maximum efficiency and proper oil circulation. Select line set tube diameters as specified in Figure 4.

NOTE: If the line set actual length is to exceed 80 feet, or if there is more than 20 feet vertical separation between outdoor and indoor units, refer to the Long Line Application Guidline document for additional instructions.

NOTE: Line set actual length must not exceed 200 feet. NOTE: A crankcase heater must be used when the

refrigerant line length exceeds 80 feet. If it is necessary to add refrigerant line in the field, use

dehydrated or dry, sealed, deoxidized, copper refrigeration tubing. Do not use copper water pipe.

Do not remove rubber plugs or caps from copper tubing until connections are ready to be made.

Be extra careful when bending refrigeration tubing. Tubing can “kink” easily, and if this occurs, the entire length of tubing must be replaced.

PERSONAL INJURY HAZARD

Failure to follow this warning could result in per‐ sonal injury and/or death.

Relieve pressure and recover all refrigerant before servicing existing equipment, and before final unit disposal. Use all service ports and open all flow-‐ control devices, including solenoid valves.

UNIT OPERATION HAZARD

Failure to follow this caution may result in improp‐ er product operation.

Do not leave system open to atmosphere any lon‐ ger than absolutely required for installation. Inter‐ nal system components - especially refrigerant oils - are extremely susceptible to moisture con‐ tamination. Keep ends of tubing sealed during installation until the last possible moment.

WARNING

CAUTION

Figure 4 R-22 Line Set Tube Diameter (Liquid Tube Always a"” dia.)

Service Valve Fittings Line Set < 80 feet long Line Set 80 - 200 feet long

Model Size

36 (3 ton) a” w” w” d”

42 (32 ton), 48 (4 ton) a” d” d” !8”

60 (5 ton) a” d” !8” !8”

506 01 5001 00 5

Liquid Suction Suction Line Diameter Suction Line Diameter

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