38AQS008 Air-Cooled Split System Heat Pump 50/60 Hz

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Step 1 — Complete Pre-Installation Checks . . 1

UNCRATE UNIT

INSPECT SHIPMENT

CONSIDER SYSTEM REQUIREMENTS

Step 2 — Rig and Mount the Unit . . . . . . . . . . . . 2

RIGGING

MOUNTING

COMPRESSOR MOUNTING

Step 3 — Complete Refrigerant Piping

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SIZE REFRIGERANT LINES

FILTER DRIER AND MOISTURE INDICATOR

LIQUID LINE SOLENOID VALVE

SAFETY RELIEF

SUCTION PIPING AT INDOOR COIL AND TXV SENSING BULB LOCATION

Step 4 — Make Electrical Connections . . . . . . . 3

FIELD POWER SUPPLY

ACCESSORY ELECTRIC HEAT

FIELD CONTROL WIRING

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10,11

Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . 10

Evacuate and Dehydrate . . . . . . . . . . . . . . . . . . . 10

Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . 10

Refrigerant Service Ports . . . . . . . . . . . . . . . . . . 10

Sequence of Operation . . . . . . . . . . . . . . . . . . . . 10

Checking Cooling and Heating Control

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Outdoor-Fan Adjustment . . . . . . . . . . . . . . . . . . . 11

Compressor Removal . . . . . . . . . . . . . . . . . . . . . . 11

Cooling Mode Operation . . . . . . . . . . . . . . . . . . . 12

Heating Mode Operation . . . . . . . . . . . . . . . . . . . 12

TROUBLESHOOTING CHART . . . . . . . . . . . . . . 14,15

START-UP CHECKLIST . . . . . . . . . . . . . . . . CL-1,CL-2

SAFETY CONSIDERATIONS

Installing and servicing air-conditioning equipment can be hazardous due to system pressure and electrical compo- nents. Only trained and qualified service personnel should install or service air-conditioning equipment.

When working on air-conditioning equipment, observe pre- cautions in literature and on tags and labels attached to unit.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire ex- tinguisher available. Read these instructions thoroughly. Con- sult local building codes and National Electrical Code U.S.A. (NEC) for special installation requirements.

Before installing or servicing system, always turn off main power to system. There may be more than one dis- connect switch. Electrical shock can cause personal injury.

INSTALLATION

The 38AQS008 unit uses a semi-hermetic compressor. See Tables 1A and 1B for physical data.

The 38AQS008 is approved by Carrier for use only with 40RMQ008 fan cooling units. Use only approved far coils.

The 38AQS008 (60 Hz) is Underwriters’ Laboratories (UL) and Canadian Underwriters’ Laboratories (CUL) approved for use with the 40RMQ008 fan coil only.

Step 1 — Complete Pre-Installation Checks

UNCRATE UNIT (See Fig. 1) — Remove unit packaging except for the top skid assembly and wood bumpers, which should be left in place until after unit is rigged into place.

INSPECT SHIPMENT — File claim with shipping com- pany if shipment is damaged or incomplete.

Fig. 1 — 38AQS008 Unit

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

Book

1

4

 

PC 111

Catalog No. 533-887

Printed in U.S.A.

Form 38AQS-4SI

Pg 1

6-95

Replaces: 38AQS-3SI

Tab

5a

5a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Carrier 38AQS008 specifications Contents, Safety Considerations, Installation

38AQS008 specifications

The Carrier 38AQS008 is a high-performance air conditioning unit that stands out for its innovative technology, design, and efficiency. As part of Carrier's extensive line of HVAC solutions, this model is engineered to deliver optimal indoor comfort while minimizing energy consumption.

One of the main features of the Carrier 38AQS008 is its high SEER rating, which signifies exceptional energy efficiency. This rating ensures that consumers can enjoy lower utility bills and reduced environmental impact, making it an ideal choice for eco-conscious homeowners. The unit's advanced cooling technologies work seamlessly to maintain precise temperature control, ensuring a pleasant environment regardless of the season.

The Carrier 38AQS008 employs a variable-speed compressor, which allows the system to adjust its operation based on the cooling demand. Unlike traditional fixed-speed units that operate at a single speed, the variable-speed technology leads to quieter operation, increased efficiency, and improved dehumidification. As the unit operates at lower speeds, it can effectively reduce energy usage when full cooling capacity is not required, further enhancing overall efficiency.

In addition to its potent cooling capabilities, the Carrier 38AQS008 incorporates a robust filtration system that captures airborne particles, dust, and allergens. This feature not only improves indoor air quality but also ensures that the system operates efficiently by maintaining clean coils. Users can enjoy a healthier living space while also prolonging the lifespan of the air conditioning unit.

Another characteristic of the Carrier 38AQS008 is its durable construction, designed to withstand harsh weather conditions. The unit is equipped with a galvanized steel cabinet that offers corrosion resistance, and its compact design allows for easy installation and integration into various home environments.

Moreover, the Carrier 38AQS008 is compatible with smart home technology, allowing users to control their air conditioning system remotely. This feature enhances convenience and efficiency, as homeowners can adjust settings based on their daily routines and preferences.

Meeting rigorous energy performance standards, the Carrier 38AQS008 exemplifies Carrier's commitment to sustainability and customer satisfaction. With its combination of advanced features, reliable performance, and user-friendly technology, this air conditioning unit is a superior choice for those seeking a dependable and efficient cooling solution.