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INSTALLATION, START-UP AND
SERVICE INSTRUCTIONS

38VTA

50Hz

AIR-COOLED CONDENSING UNIT

CONTENTS

Safety Considerations

1

Dimensional Drawing

2

Specifications

3

Installation

4

Refrigerant Piping

4

Filter Drier

5

Piping Insulation

5

Complete Electrical Connections

5

Schematic Wiring Diagram

6

Start-Up

7

Refrigerant Charging

7

Service and maintenance

8

Superheat Charging Table

9

Trouble-Shooting Guide

10

FIG. 1    38VTA040/050/060

SAFETY CONSIDERATIONS

Installation and servicing of air conditioning equipment can
be hazardous due to system pressure and electrical
components. Only trained and qualified service personnel
should install, repair or service air conditioning equipment.
Observe precautions in the literature, tags and labels
attached to the unit and other safety codes.
Wear safety glasses and gloves. Use quenching cloth and
have fire extinguisher available for all brazing operations.

RECEIVING

38VTA condensing units (Fig.1) are shipped individually
packed in carton boxes. When cartons are individually off
loaded from truck, do not roll, nor throw, or drop the
carton, to avoid damages to the content. Store boxes
upright as the symbols or the boxes indicate. Do not stack
units more than 2 high.

INSPECTION

Check the shipment against shipping list and remove unit
from the carton and take off protective covering. If the unit
has been damaged, file claim with transportation company
and notify Carrier immediately.

PROTECTION

Protect unit from damage caused by job site debris. Do
not allow dust, debris and water get into the unit. These
will damage unit’s component and unit’s performance will
be affected.

WARNING

Before installing or servicing system always turn off main
power supply. There may be more than one disconnect
switch. Electrical shock can cause personal injury.

A United Technologies Company

Carrier
International
Sdn. Bhd.
Malaysia

®

Summary of Contents for 38VTA040

Page 1: ...cloth and have fire extinguisher available for all brazing operations RECEIVING 38VTA condensing units Fig 1 are shipped individually packed in carton boxes When cartons are individually off loaded f...

Page 2: ...2 FIG 2 38VTA040 050 060 DIMENSIONAL DRAWING...

Page 3: ...l Oil charged l 1 36 1 95 1 77 LRA 50 0 65 5 74 0 RLA 7 9 10 0 10 0 Power Supply 400 3 50 CONDENSER FAN Type Propeller Number 1 Blade dia mm 609 Speed rpm 710 Drive Direct Drive FAN MOTOR Type Permane...

Page 4: ...tubes as directly as possible avoiding unnecessary turns and bends Condensing unit may be connected to evaporator sections using field supplied tubing of refrigerant grade correct size and condition S...

Page 5: ...electrical connection Ensure the ground cable is 20mm longer than others Do not bypass or vary the protective device setting since unit damage may result and the guarantee would be invalidated The ins...

Page 6: ...6 SCHEMATIC WIRING DIAGRAM FIG 10 38VTA040 050 060 c w 40LX040 050 060 FIG 11 38VTA040 050 060 c w 42AR ARM 036 048 060 38VTA040 050 060 c w 42GX 040 050 060...

Page 7: ...E FULLY SEATED TO CLOSE SERVICE PORT THERE IS NO SCHRADER VALVE AT THE SERVICE PORT AND FAILURE TO BACKSEAT THE VALVE COULD RESULT IN LOSS OF SYSTEM CHARGE OR PERSONAL INJURY REFRIGERANT CHARGING CAUT...

Page 8: ...setscrews Adjust fan depth as shown in Fig 14 Tighten setscrew and replace fan grille FIG 13 CLEANING COIL WITH WATER FIG 14 FAN POSITION MOUNTING SERVICE AND MAINTENANCE CAUTION BEFORE PERFORMING REC...

Page 9: ...41 43 45 47 49 51 2 37 39 41 43 45 47 49 51 53 4 39 41 43 45 47 49 51 53 55 6 41 43 45 47 49 51 53 55 57 8 43 45 47 49 51 53 55 57 59 10 45 47 49 51 53 55 57 59 61 12 47 49 51 53 55 57 59 61 63 14 49...

Page 10: ...GH OR LOW COMPRESSOR BEARINGS LOW REFRIGERANT CHARGE HIGH SUPERHEAT LOOSE LEAD AT FAN MOTOR MOTOR DEFECTIVE INCORRECT OUTDOOR FAN MOTOR CAPACITOR LOW SUCTION PRESSURE DIRTY AIR FILTERS DUCT RESTRICTED...

Page 11: ...11 MEMO...

Page 12: ...pecifications or designs without notice and without incurring obligations 38VTA502 001 03 04 38 VTA NEW Carrier International Sdn Bhd 3385 T Lot 4 Jalan P 6 43650 Bandar Baru Bangi Selangor Malaysia T...

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