Carrier 38AE014 User Manual download pdf

Installation, Start-Up and

Service Instructions

CONTENTS

Page

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

INSTALLATION ..............................1-8

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

Step 2 — Rig and Mount the Unit .............6

Step 3 — Complete Refrigerant Piping

Connections .................................6

Step 4 — Install Accessories .................7

Step 5 — Complete Electrical Connections ....7

PRE-START-UP ..............................9

Evacuate and Dehydrate ......................9

Leak Test ....................................9

Turn On Crankcase Heaters ..................9

Add Preliminary Charge ......................9

Before Starting Unit ..........................9

START-UP .................................9-13

To Start Unit .................................9

Oil Charge ...................................9

Refrigerant Charge ...........................9

Check Operation ............................13

OPERATING SEQUENCE ....................13

Cooling .....................................13

Heating .....................................13

Fan Cycling .................................13

Winter Start Control .........................13

SERVICE ..................................13,14

Capacity Control ............................13

Head Pressure Control ......................13

Time GuardT II Circuit .......................13

Winter Start Control .........................13

Crankcase Heater ...........................13

Outdoor Fan ................................14

Lubrication .................................14

Cleaning Coils ..............................14

TROUBLESHOOTING ......................15,16

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

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning equip-

ment can be hazardous due to system pressures, electrical

components, and equipment location (roofs, elevated struc-

tures, etc.).

Only trained, qualiﬁed installers and service mechanics

should install, start-up, and service this equipment (Fig. 1).

Untrained personnel can perform basic maintenance func-

tions such as cleaning coils. All other operations should be

performed by trained service personnel.

When working on the equipment, observe precautions in

the literature and on tags, stickers, and labels attached to the

equipment.

Follow all safety codes. Wear safety glasses and work gloves.

Keep quenching cloth and ﬁre extinguisher nearby when

brazing. Use care in handling, rigging and setting bulky

equipment.

ELECTRIC SHOCK HAZARD

Separate power sources (main and control

power circuits) are used for these units. Be

sure both main and control power circuits are

disconnected before servicing.

INSTALLATION

Step 1 — Complete Pre-Installation Checks

UNCRATE UNIT — Remove unit packaging except for the

top skid assembly, which should be left in place until after

the unit is rigged into its ﬁnal location.

INSPECT SHIPMENT — File claim with shipping com-

pany if shipment is damaged or incomplete.

CONSIDER SYSTEM REQUIREMENTS

• Consult local building codes and National Electrical Code

(NEC, U.S.A.) for special installation requirements.

• Allow sufficient space for airﬂow clearance, wiring, re-

frigerant piping, and servicing unit. See Fig. 1. See

Fig. 2 for unit component locations.

• Locate unit so that outdoor coil (condenser) airﬂow is un-

restricted on all sides and above.

• Unit may be mounted on a level pad directly on the base

channels or mounted on raised pads at support points. See

Table 1A-1D for unit operating weights. See Table 2 for

weight distribution based on recommended support points.

NOTE: If vibration isolators are required for a particular

installation, use the data in Table 2 to make the proper

selection.

38AE012,014,016

38AKS024

Air-Cooled Condensing Units

50/60 Hz

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

Book 1 4

Tab 3a 2a

PC 111 Catalog No. 563-746 Printed in U.S.A. Form 38A-4SI Pg 1 4-94 Replaces: 38AE-17SI

1 2 ... 20

Summary of Contents

Page 1 - Service Instructions

Installation, Start-Up andService InstructionsCONTENTSPageSAFETY CONSIDERATIONS ...1INSTALLATION ...1-8Step

Page 2 - Fig. 1 — Dimensions (ft-in.)

Fig. 9 — 38AE012 and 38AKS024 Charging Chart10

Page 3 - 812 91011

Fig. 10 — 38AE014 Charging Chart11

Page 4

Fig. 11 — 38AE016 Charging Chart12

Page 5

Check Operation — Verify operation of all safety con-trols. Replace all service panels. Be sure that control panelcover is closed tightly.OPERATING SE

Page 6 - Connections

Outdoor Fans — Each fan is supported by a formed-wire mount bolted to the fan deck and covered with a wireguard. The exposed end of the motor shaft is

Page 7

TROUBLESHOOTINGPROBLEM SOLUTIONCOMPRESSOR DOES NOT RUNContactor Open1. Power off. 1. Restore power.2. Fuses blown in ﬁeld power circuit. 2. After ﬁndi

Page 8

TROUBLESHOOTING (cont)PROBLEM SOLUTIONCOMPRESSOR CYCLES ON LOW-PRESSURE SWITCH (cont)Airﬂow Restricted1. Coil iced up. 1. Check refrigerant charge.2.

Page 9 - (06D COMPRESSOR)

Page 10

PACKAGED SERVICE TRAININGOur packaged service training programs provide an excellent way to increase your knowledge of theequipment discussed in this

Page 11

START-UP CHECKLISTA. Preliminary InformationOUTDOOR: MODEL NO. SERIAL NO.INDOOR: AIR HANDLER MANUFACTURERMODEL NO. SERIAL NO.ADDITIONAL ACCESSORIESB.

Page 12

LEGENDA—11⁄4-in. (32) diameter knockout for5⁄8-in. (16) ODM liquid line connectionB—13⁄4-in. (44.5) diameter knockout for suction line connections of

Page 13

C. Start-UpCHECK EVAPORATOR FAN SPEED AND RECORD.CHECK CONDENSER FAN SPEED AND RECORD.AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEA

Page 14 - Lubrication

132 4567812 91011LEGEND1—Low-Voltage Fuse 5—No. 2 Fan 9—Compressor2—No. 1 Fan 6—Terminal Block 1 (Unit Power) 10 — Low-Pressure Switch3—High-Pressure

Page 15 - TROUBLESHOOTING

Table 1A — Physical Data (English, 60 Hz)UNIT 38AE012 38AE014 38AE016 38AKS024OPERATING WEIGHT (lb) 732 779 789 900REFRIGERANT* R-22COMPRESSOR Recipro

Page 16 - TROUBLESHOOTING (cont)

Table 1C — Physical Data (English, 50 Hz)UNIT 38AE012 38AE014 38AE016 38AKS024OPERATING WEIGHT (lb) 732 779 789 900REFRIGERANT* R-22COMPRESSOR Recipro

Page 17

Table2—Weight DistributionUNITWEIGHT — lb (kg)TotalOperatingSupport PointAB C D38AE012 732 (333) 142 (65) 138 (63) 225 (102) 227(103)38AE014 779 (354)

Page 18 - PACKAGED SERVICE TRAINING

INSTALL FILTER DRIER(S) AND MOISTURE INDICA-TOR(S) — Every unit should have a ﬁlter drier and liquid-moisture indicator (sight glass). In some applica

Page 19 - B. Pre-Start-Up

Table 5A — Electrical Data (3 Ph/60 Hz)UNITUNIT COMPR FAN MOTORS (Single Phase)ModelVoltsMCA ICFMOCP(Fuse)RLA LRATotalFansFLA (ea)Fan No.kWNameplateSu

Page 20 - C. Start-Up

PRE-START-UPEvacuate and Dehydratethe entire refrigerant sys-tem by either of the methods described in Carrier StandardService Techniques Manual, Chap

Related models: 38AE016

Comments to this Manuals

No comments

Carrier 38AE014 User Manual

Browse online or download User Manual for Conditioners Carrier 38AE014. Carrier 38AE014 User Manual

Summary of Contents

Related models: 38AE016

Comments to this Manuals

Related products and manuals for Conditioners Carrier 38AE014