Carrier Official Installation and Service Manual for the 38AN Heat Pump

Page 1

38AN,BK with 40QN009,012 Cooling Only/Heat Pump Systems

Installation, Start-Up an

Service Instructions

(For Use in High Wall Applications)

 

 

 

CONTENTS

 

 

 

 

 

 

Page

SAFETY CONSIDERATIONS

1

GENERAL

..................................

1,2

INSTALLATION

2-13

Step 1 - Complete Pre-lnstallation Checks

.... 2

UNPACK UNIT

 

 

INSPECT SHIPMENT

 

 

Step 2

-

Select Location

.....................

2

Step 3

-

Mount Mounting

Bracket on Wall .... 3

Step 4

-

Mount Outdoor

Section

9

Step 5

-

Connect Refrigerant Piping

I0

RIGHT REAR AND BOTTOM PIPING CONNECTIONS

RIGHT SIDE PIPING CONNECTIONS

LEFT SIDE PIPING CONNECTIONS

ALL TYPES PIPING CONNECTIONS

Step 6

-

Make Piping Connections

10

Step 7

-

Connect Condensate Drain Line ....

ll

Step 8

-

Make Electrical Connections

11

INDOOR SECTION WIRING

OUTDOOR SECTION WIRING

Step 9 - Install Fan Coil Unit Onto

 

Mounting Bracket

13

START-UP

14-17

40QN Control System

14

Wireless Remote Controllers

14

After Extended Shutdowns

14

 

Page

System Safeties and Interlocks

20

INDOOR FAN FAILURE

COMPRESSOR SHORT-CYCLING PROTECTION

INDOOR COIL FREEZE PROTECTION

INDOOR COIL HIGH-TEMPERATURE PROTECTION

TROUBLESHOOTING

20-27

START-UP CHECKLIST

CL-I, 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.

Untrained personnel can perform basic maintenance func- tions such as cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel.

When working on air conditioning equipment, observe pre- cautions in the 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 extinguisher available. Before installation, read these in- structiens thoroughly. Consult local building codes and Na-

tional Electrical Code (NEC) for special installation requirements.

Seasonal Changeovers

14

To Turn the Unit On and Off

14

Adjusting

Airflow

14

Operating Mode Memory

14

Automatic

Operation (Auto) Mode

14

Operating

Fault Diagnosis

15

Microprocessor Control Operation

15

CLEANING AND MAINTENANCE

18-19

Lubrication

18

To Install or Replace Remote Controller

 

Batteries

18

To Set the Current Time

18

To Remove and Clean or Replace Air Filters .. 18

TO REMOVE AIR FILTERS

TO CLEAN OR REPLACE FILTERS

To Clean Indoor Unit Front Panel

19

To Clean

Indoor Coil

19

To Clean Outdoor Coil (Outdoor Unit)

19

To Clean Condensate Drains

19

SERVICE

...................................

20

Diagnostic

Codes

20

System Tests

20

• THERMISTOR

TESTS

 

• COMPRESSOR

FAILURE

 

• REVERSING VALVE FAILURE (38BK Only)

Electrical shock can cause personal injury or death. Be- fore installing or servicing system, be sure to turn off main power to system. There may be more than one dis- connect switch. Turn off indoor fan coil power as applicable.

GENERAL

The Carrier 40QNHOI 2 heat pump high wall fan coil unh (Fig. 1) comes with supplemental electric heat (40QNE009 heat pump fan coil unit does not have electric heat). If your

application requires heating, heat pump units must be used both outdoors and indoors. See Table 1 for recommended

system combinations.

The matched cooling and heat pump systems consist of an outdoor section (condensing unit or heat pump) and an in- door section (fan coil). The outdoor section (38AN or 38BK) is installed alongside the building structure. It can also be installed on a flat roof, deck, or on an apartment building balcony. The indoor section (40QNB009,012 or 40QNE009, 40QNH012) is mounted high on an interior wall that is con- venient for piping connection to the outdoor section. Two sizes are available: 9,000 and 12,000 Btuh cooling capaci- ties. See Fig. 1 for system components, Table 1 for system

ManuPacturer 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. 535-848

Printed in U.S.A.

Form 38A,BI40Q-1SI

Pg 1

5-99

Replaces: 53AN,BK-1SI

Image 1
Contents Service Instructions System Indoor Outdoor Unit System Combinations for Indoor Outdoor UnitsCooling HeatingLii High Wall Unit Package ContentsPhysical Data, 40QNB Cooling Only High Wall Units Physical Data, 38AN Cooling Only Condensing UnitsUnit 38BK Physical Data, 38BK009,012 Outdoor Heat Pump UnitsRefrigerant Type Physical Data, 40QNEIH Heat Pump High Wall Units Operating WeightUnit Ciso,..5s Unit Weightabc 40QN Dimensional DrawingFig, 6 --Maximum System Line Lengths System Piston Guide Refrigerant ChargesMAX Hi--till/I/IRear Piping Size 009 Shown Wall Hole Location For Fan Coil Unit?q,ElldIi PR ,LI-1,II Flare Nut Tightening TorqueIj i Flare NUT Tube TorqueVoltagerange Compressor FAN Electric Heater DataLRA RLA FLA Service Cover Outdoor Unit InstallFan Coil Unit Onto Mounting BracketIndoor and Outdoor Unit START-UP Wireless Remote Controllers --A wireless remoteHeat Microprocessor Control Operation --This sysWill stop30secondsafterthecompressorstopsAfter Emer --Emergency Outdoorair TemperaturefCleaning and Maintenance Schedule To Install or Replace Remote Controller BatteriesTask Monthly Quarterly Yearly Indoor Unit To Clean Indoor Coil --To clean the coil, remove To Clean Condensate Drains-- Clean all drainsRemovecover SET TimeNO. of Quick System Fault LED Flashes SystemFault CodesProblem Potential Source Action Troubleshooting40QN Thermistor Properties Minimum Nominal Maximum Temp Thermistor Ohms Volts -- DCWall CAP Wireless CONTROLLER*AIRFLOWTo Opendrain IFM JEM-A Aging CAP CH Comp EMI FMC GNDOFM PCB PTC RCVFl I rl Control 38BK009 with 40QNE009 Heat Pump System Wiring Diagram Control PCB A55 Y Page

38AN,BK specifications

The Carrier 38AN,BK is a distinguished model in the world of air conditioning, known for its advanced features, innovative technologies, and exceptional performance. This air conditioning unit is particularly favored for residential and small commercial applications, offering a perfect blend of efficiency, reliability, and comfort.

One of the main features of the Carrier 38AN,BK is its high energy efficiency, which is crucial in today’s eco-conscious environment. With a Seasonal Energy Efficiency Ratio (SEER) rating that often exceeds industry standards, this unit ensures minimal energy consumption while providing powerful cooling capabilities. This not only contributes to lower utility bills but also reduces the overall carbon footprint.

The Carrier 38AN,BK employs advanced cooling technologies that make it a standout choice. One notable feature is its use of a scroll compressor, which operates with fewer moving parts than traditional models, resulting in reduced noise levels and enhanced durability. This compressor design also ensures a smoother operation, translating to consistent temperature control and a more comfortable indoor environment.

Another innovative technology incorporated in the Carrier 38AN,BK is the use of smart controls, allowing users to easily adjust settings and monitor performance through compatible smart devices. This feature adds convenience and flexibility, enabling homeowners to manage their home climate efficiently, even when they are away.

In terms of construction, the Carrier 38AN,BK’s robust design includes a galvanized steel cabinet that is resistant to corrosion and designed to withstand adverse weather conditions. This ensures longevity and reliable performance throughout the year. Additionally, the unit features advanced filtration systems that help improve indoor air quality by reducing allergens and pollutants, further enhancing user comfort.

Furthermore, the Carrier 38AN,BK is designed to operate quietly, making it an ideal choice for bedrooms and other quiet spaces. Its noise reduction features, combined with its energy-saving capabilities, position it as an attractive choice for a wide range of applications.

In summary, the Carrier 38AN,BK air conditioning unit excels in efficiency, advanced technologies, and user-friendly features. Its reliable design and quiet operation make it a top choice for anyone seeking effective and environmentally responsible cooling solutions. As both technology-savvy and eco-friendly, it meets the demands of modern homeowners while delivering exceptional comfort year-round.