Carrier 38AKS009 - Manual
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Table of Contents:
- Page 4 – Table 2 — Weight Distribution; Step 2 — Rig and Mount the Unit; If it is necessary to roll unit into position, mount unit on; Table 3A — Refrigerant Piping Sizes — 60 Hz; Be sure unit panels are securely in place prior to rigging.
- Page 5 – Fig. 3 — Rigging Label
- Page 6 – Step 4 — Make Electrical Connections; Fig. 4 — Typical Compressor Mounting; Fig. 5 — Power Wiring Connections
- Page 7 – Table 5 — Electrical Data
- Page 8 – Fig. 7 — Field Control Wiring Raceway
- Page 9 – Fig. 8A — Cooling Charging Chart — 38AK007
- Page 11 – Fig. 11 — Propping Up Top Panel
- Page 12 – Fig. 14 — Compressor Capacity Control Unloader
- Page 13 – TROUBLESHOOTING GUIDE
- Page 14 – Fig. 15 — Typical Component Arrangement
- Page 15 – I. Preliminary Information; OUTDOOR UNIT
- Page 16 – CHECK VOLTAGE IMBALANCE
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 533-80003
Printed in U.S.A.
Form 38A-9SI
Pg 1
5-01
Replaces: 38A-8SI
Book 1
4
Tab
3a 2a
Installation, Star t-Up and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Step 1 — Complete Pre-Installation Checks
. . . . . . 1
• UNCRATE UNIT
• INSPECT SHIPMENT
• CONSIDER SYSTEM REQUIREMENTS
Step 2 — Rig and Mount the Unit
. . . . . . . . . . . . . . . . . 4
• RIGGING
• COMPRESSOR MOUNTING
Step 3 — Complete Refrigerant Piping
Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
• SIZE REFRIGERANT LINES
• FILTER DRIER AND MOISTURE INDICATOR
Step 4 — Make Electrical Connections
. . . . . . . . . . . 6
• FIELD POWER SUPPLY
• FIELD CONTROL WIRING
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Preliminary Checks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Rotation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Evacuate and Dehydrate
. . . . . . . . . . . . . . . . . . . . . . . . . 9
Refrigerant Charge
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Overload
. . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cycle-LOC™ Device (CLO)
. . . . . . . . . . . . . . . . . . . . . . 10
Low-Pressure/Loss-of-Charge Switch (LPS)
. . . . . 10
High-Pressure Switch (HPS)
. . . . . . . . . . . . . . . . . . . . . 10
High Flow Valves
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Refrigerant Service Ports
. . . . . . . . . . . . . . . . . . . . . . . 10
Cooling
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sequence of Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . 10
Oil Charge
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11,12
Cleaning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lubrication
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Condenser-Fan Adjustment
. . . . . . . . . . . . . . . . . . . . . 11
Capacity Control — Unit 38AKS012 Only
. . . . . . . . 12
Compressor Removal
. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Crankcase Heater (Except 38AK007)
. . . . . . . . . . . . 12
TROUBLESHOOTING GUIDE
. . . . . . . . . . . . . . . . . .13,14
START-UP CHECKLIST
. . . . . . . . . . . . . . . . . . CL-1, CL-2
SAFETY CONSIDERATIONS
Installing and servicing air-conditioning equipment can be
hazardous due to system pressure and electrical components.
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.
NOTE: Ensure voltage listed on unit data plate agrees with
electrical supply to unit.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for brazing operations. Have fire
extinguisher available. Read these instructions thoroughly.
Consult local building codes and National Electrical Code
(NEC) (U.S.A. Standard) for special installation requirements.
INSTALLATION
The 38AK007, 008, and 012 units use hermetic compres-
sors. The 38AKS008, 009, and 012 units use semi-hermetic
compressors. See Table 1A or 1B for physical data.
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 company
if shipment is damaged or incomplete.
Before installing or servicing system, always turn off main
power to system and install lockout tag on disconnect.
There may be more than one disconnect switch. Electrical
shock can cause personal injury.
38AK007,008,012
38AKS008,009,012
Air-Cooled Condensing Units
50/60 Hz
Fig. 1 — Model 38AK (Size 007 Shown)
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Summary
4 CONSIDER SYSTEM REQUIREMENTS• Consult local building codes and NEC for special instal-lation requirements. • Allow sufficient space for airflow clearance, wiring,refrigerant piping, and unit servicing. See Fig. 2. • Locate unit so that condenser airflow is unrestricted onall sides and above. Refer...
5 UNIT 38 DIM. A DIM. B DIM. C DIM. D DIM. E DIM. F AK007 1 ′ -6 1 / 2 ″ [470.0] 1 ′ -2 3 / 4 ″ [375.0] —— 1 ′ -2 1 / 4 ″ [362] 1 ′ -4 5 / 16 ″ [415] 2 ′ -9 5 / 16 ″ [846.5] AK008 1 ′ -8 ″ [508.0] 1 ′ -6 1 / 2 ″ [470.0] —— 1 ′ -3 ″ [381] 2 ′ - 5 / 16 ″ [613] 3 ′ -5 7 / 16 ″ [1052.5] AK012 1 ′ -9 ″ [...
6 FILTER DRIER AND MOISTURE INDICATOR — The fil-ter drier is factory installed. Moisture indicator is field-suppliedand should be installed just after liquid line shutoff valve. Donot use a receiver; there is none provided with unit and oneshould not be used.NOTE: Unit is shipped with R-22 holding c...
