Carrier 38AK024-044 User Manual

Browse online or download User Manual for Conditioners Carrier 38AK024-044. Carrier 38AK024-044 User Manual

  • Download
  • Add to my manuals
  • Print
  • Page
    / 13
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 0
HEATING A COOLING
38AK024-044
Air-Cooled Condensing Units
Installation, Start-Up and Service Instructions
50- and 60-Hertz Air-Cooled Packages
CONTENTS
Page
SAFETY CONSIDERATIONS
.........................................
1
BEFORE INSTALLATION
.............................................
1-3
Rigging ...........................................................................l
Placing Unit .................................................................. 3
Mounting Unit
...............................................................
3
Compressor Mounting
.................................................
3
INSTALLATION
..........................................................
3-10
Refrigerant Piping Connections ..................................3
Single Pumpout Control
...............................................
3
Filter Drier and Moisture Indicator...............................3
Receiver .........................................................................3
Piping Procedure ...........................................................3
Power Supply .................................................................5
Power Wiring..................................................................5
START-UP ................................................................11-16
Initial Check...................................................................11
Leak Test and Dehydration
.........................................
11
Preliminary Charge
......................................................
11
Start Unit .......................................................................11
Page
Charge System .........................................................11
Operation ..................................................................11
Timer Functions ........................................................16
Sequence of Operation.............................................16
Complete Unit Stoppage
.........................................
16
SERVICE
..............................................................
17-19
Access for Servicing ................................................17
Fan Adjustment ........................................................18
Oil Charge
.................................................................
18
Liquid Shutoff/Charging Valve
...............................
18
Capacity Control .......................................................18
Oil Pressure Safety Switch (OPS)
..........................
19
Compressor Protection
............................................
19
High-Pressure Switch ..............................................19
Low-Pressure Switch ...............................................19
Winter Start Control
.................................................
19
Head Pressure Control
............................................
19
TROUBLESHOOTING .20
SAFETY CONSIDERATIONS
Installing, starting up and servicing air conditioning
equipment can be hazardous due to system pressures,
electrical components and equipment location (roofs, ele
vated structures, etc.)
Only trained, qualified installers and service mechanics
should install, start-up and service this equipment (Fig. 1).
Untrained personnel can perform basic maintenance
functions 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.
See Table 1 for Physical Data.
ELECTRIC SHOCK HAZARD
Cm
Open all remote disconnects before
tr
servicing this equipment.
BEFORE INSTALLATION
Rigging — Preferred method is with spreader bars
from above the unit. Use 2-in. (50 mm) OD pipe or
hooks in lifting holes. Rig with 4 cables and spreader
bars. All panels must be in place when rigging. See
rigging label on unit for details concerning shipping
weights, distance between lifting holes, center of
gravity and spreader bar dimensions. See Fig. 2.
If overhead rigging is not possible, place chiller on
skid or pad for rolling or dragging. When rolling, use
minimum 3 rollers. When dragging, pull the pad. Do
not apply force to the unit When in final position, raise
from above to lift unit off pad.
A CAUTION
All panels must be in place when rigging. Do not fork
units if no skid is supplied. If unit has skid, truck from
sides only.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obiigations.
Book 1
Tab
I
3a
PC111
Catalog No 563-915
Printed in U S A Form 38AK-1SIM
Pgi
11-89
Replaces: New
Page view 0
1 2 3 4 5 6 ... 12 13

Summary of Contents

Page 1

HEATING A COOLING38AK024-044 Air-Cooled Condensing UnitsInstallation, Start-Up and Service Instructions50- and 60-Hertz Air-Cooled PackagesCONTENTSPag

Page 2

ESS DOORBOXDIA.UIT WIRING8' OIA. ^PLY.coMip« secirioN(FAN No. 1No. 2TOP VIEWFIELD CONTROL POWER ENTRYinsional Drawing, 38AK028,034SIDE VIEW

Page 3

NOTES:1. THERE MUST BE £1220 ram] 4 Ft FOR SERVICE AND FOR UNRESTRICTED AIRFLOW ON ALL SIDES OF UNIT.2. THERE MUST BE MINIMUM £2440 mm] 8 ft CLEAR A

Page 4

FAN No. 1FAN No. 2FAN No. 3TOP VIEW)1A.CONTROLENTRYing. 38AK044SIDE VIEW

Page 5

OR DIA HOLE [92 I] 3 5/8"NOTES:1 Factory wiring in accordance with National Electricai Code (NEC) Any fieid modifications or additi

Page 7

3/4-IN (19mm) NOTCHES IN END OR SPREADERSFig. 1 - Model 38AK (024 shown)Fig. 2 — Rigging with Spreader Bars (Field Supplied) Table 1A — Physical Data

Page 8

Placing Unit — There must be 4 ft (1220 mm) for service and for unrestricted airflow on all sides of unit, and a minimum of 8 ft (2440 mm) c

Page 9

Table 2 — Refrigerant Piping SizesSINGLE SUCTION RISERSLENGTH OF INTERCONNECTING PIPING (FT)MODEL38AK16-2526-5051-7576-100101-200LS L SLSLSL S024 5/8

Page 10

Power Supply — Electrical characteristics of available power supply must agree with unit nameplate rating. Supply voltage must be within limits

Page 11

4. Maximum field wire sizes allowed by lugs on terminal block are:350 MCM for models 38AK028 (208/230-3-60), 38AK034 (208/230-3-60, 230-3-50), and 38

Page 12

HINGED ACCESS DOOR•NOTES: 13.THERE MUST BE [1220 mm] 4 ft FOR SERVICE AND FOR UNRESTRICTED AIRFLOW ON ALL SIDES OF UNIT. THERE MUST BE MINIMUM C2440 m

Page 13

ECimONPAM No. 25/8' DIA. LY[22.2] 7/8' DIA.FIELD CONTROL CIRCUIT WIRINGTOP VIEW10'-7 13/16'SIDE VIEW1 Drawing, 38AK024

Page 14

NOTES:1. THERE MUST BE [1220 mm] 4 Ft FOR SERVICE AND FOR UNRESTRICTED AIRFLOW ON ALL SIDES OF UNIT.2. THERE MUST BE MINIMUM [2440 mm] B ft CLEAR AI

Comments to this Manuals

No comments