Carrier 38EYG - User Manual

HEATING & COOUNG
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Heat
38EYG
12 SEER Split-System
Pump with Puron® Refrigerant
Installation and Start-Up Instructions
NOTE: Read the entire instruction manual before starting the
installation.
This symbol _ indicates a change since the last issue.
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 fiactory-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 thor-
oughly 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 Z_ •
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER 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 would result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliablitily,
or operation.
¥!_ tVl:1 :]_l_[d
Before installing, modifying, or servicing system, main elec-
trical 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. Electrical shock can
cause personal injury or death.
r;_[Rr21lii_] iq
Puron_; (R-410A) systems operate at higher pressures than
standard R-22 systems. Be certain that service eqnipment is
rated for Puron:,P¢. Some R-22 service equipment may not be
acceptable. Check with your distributor.
INSTALLATION RECOMMENDATIONS
NOTE: In some cases noise in the living area has been traced to
gas pulsations from improper installation of equipment.
i. Locate unit away from windows, patios, decks, etc. where unit
operation sound may disturb customer.
2. Ensure that vapor and liquid tube diameters are appropriate to
capacity of unit.
A98525
Fig. 1--Model 38EYG
3. Run refrigerant tubes as directly as possible by avoiding
unnecessary tunas and bends.
4. Leave some slack between structure and unit to absorb
vibration.
5. When passing refrigerant tubes through the wall, seal opening
with RTV or other pliable silicon-based caulk. (See Fig. 2.)
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 comes in direct contact with tubing.
(See Fig. 2.)
8. Ensure that tubing insulation is pliable and completely sur-
rounds vapor tube.
9. When necessary, use hanger straps which are 1 in. wide and
conform to shape of tubing insulation. (See Fig. 2.)
10. Isolate hanger straps from insulation by using metal sleeves
bent to conform to shape of insulation.
When outdoor unit is connected to fiactory-approved indoor unit,
outdoor unit contains system refrigerant charge for operation with
indoor unit of same size when connected by 15 ft of field-supplied
or factory accessory tubing. Add (or subtract) 0.6 ozift of 3/8
liquid line for lengths greater (or less) than 15 ft. 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.
IMPORTANT: Maxinmm liquid-line size is 3/8-in. O.D. for all
residential applications including long line.
IMPORTANT: Always install the factory-supplied Puron:R; heat
pump (bi-flow) liquid-line filter drier. If replacing the filter drier,
refer to Product Data Digest for appropriate part number. Obtain
replacement filter driers from your distributor or branch.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 101 Catalog No. 533-80094 Printed in USA Form 38EYG-2SI Pg 1 2-03 Replaces: 38EYG-1SI

Summary

Safety and Hazard Warnings

General Safety Guidelines

Covers hazards, protective gear, and adherence to codes.

Signal Word Definitions

Explains DANGER, WARNING, CAUTION, and NOTE to alert users to potential hazards.

Electrical Disconnect Safety

Emphasizes turning off and locking the electrical disconnect before installation.

Puron Refrigerant Pressure Safety

Warns about higher pressures of Puron® systems and need for rated equipment.

Installation Best Practices

Refrigerant Tubing Installation Tips

Guidance on routing, supporting, and insulating refrigerant tubing to prevent vibration and damage.

Unit Installation Procedures

Equipment Inspection and Site Preparation

Unpacking, inspecting the unit, and checking the rating plate for specifications.

Mounting Pad and Clearance Guidelines

Proper mounting pad, leveling, and clearance specifications for unit installation.

Operating Ambient Temperature Limits

Details minimum and maximum outdoor operating ambient temperatures for cooling and heating.

Refrigerant System Connections

Unit Elevation and Site Drainage

Instructions for elevating the unit to prevent water and ice accumulation.

Indoor Expansion Device (TXV) Requirements

Guidance on installing or verifying the correct TXV for Puron® systems.

Defrost Thermostat Verification

Instructions to ensure the defrost thermostat is properly located and attached.

Long-Line Applications: LSV Installation

Requirements for installing an LSV in long-line applications based on piping length and elevation.

Tubing and Component Installation

Liquid Service Valve Adapter Tube Installation

Steps for installing the adapter tube on the liquid service valve.

Filter Drier Installation Requirements

Importance of filter drier installation to prevent performance loss and compressor failure.

Brazing and Leak Testing Procedures

Procedures for brazing connections and leak testing all system joints.

System Evacuation: Vacuum Methods

Explains deep vacuum and triple evacuation methods for system evacuation.

Electrical Connections and System Start-Up

Field Electrical Wiring

Instructions for making field wiring and control wiring connections safely.

Crankcase Heater Operation

Requirements for operating the crankcase heater, especially in long-line applications.

Initial System Start-Up

Safety precautions and initial steps for starting the unit.

Detailed Start-Up Sequence

Detailed steps for starting the system, including opening valves, setting thermostat, and checking charge.

System Operation and Maintenance

Operational Sequences (Cooling & Heating)

Describes the operational sequences for cooling and heating modes.

Defrost Control and Modes

Details the time/temperature control and selectable Quiet Shift mode for defrost cycles.

System Refrigerant Charge Check

Procedures for checking system refrigerant charge in cooling and heating modes.

Final Installation Checks and Owner Info

Final checks before leaving, securing panels, and providing owner manuals.

Ongoing Care and Maintenance

Guidelines for ongoing maintenance to ensure continued high performance.

Carrier 38EYG Specifications

General

Brand	Carrier
Model	38EYG
Category	Heat Pump
Language	English