Carrier 38AKS013-024- Installation Manual
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Table of Contents:
- Page 3 – Table 1A; Copeland, Scroll Recip., Semi-Hermetic
- Page 4 – Table 1B; Step 2; CAUTION
- Page 5 – Before starting; Step 3; may; Table 3; Table 4; INSTALL
- Page 6 – – Thermostat Expansion Valve; Step 4 — Install Accessories —; Field install accessories; Step 5 — Complete Electrical Connections; – Location of Fusible Plug; EQUIP GND; NEC
- Page 7 – Table 5- Electrical Data
- Page 8 – Leak Test and Dehydration —; Turn On Crankcase Heater; Turn on the; Preliminary Charge —; at least 80% of the operating charge listed in the
- Page 9 – Ensure that all fans are operating
- Page 10 – When the first stage of the cooling thermostat; SERVICE; suction
- Page 11 – Time Guard II Circuit; This circuit prevents short-cycling by providing a delay; Crankcase Heater —; The heater prevents refrigerant; Compressor Protection; The 38AKS high-pressure; Outdoor Fans —; Each fan is supported by a formed wire; – Outdoor Fan – 38AKS Units; do not use wire brush
- Page 12 – – Pivot and Support Top Cover
- Page 13 – TROUBLESHOOTING; PROBLEM
- Page 14 – I. PRELIMINARY INFORMATION; INDOOR: AIR HANDLER MANUFACTURER; OUTDOOR UNIT
- Page 16 – NOTES
- Page 17 – Sanaye Sarma Afarin Iran; ناریا هیرفآامرس عیانص تکرش
1
38AKS013-024
Air-Cooled Condensing Units
Installation, Start-Up and
Service Instruction
CONTENTS
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . 1
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Step 1
— Complete Pre-Installation
Checks
. . . . . . . . . . . . . . . . . . . . . . . . . . …….. . . . . . . . . . 1
Step 2
— Rig and Mount the Unit
. . . . . . . . . . . . . . . 4
Step 3
— Complete Refrigerant Piping
Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 4
— Install Accessories
. . . . . . . . . . . .. . . . . . . 6
Step 5
— Complete Electrical Connections
. . . . . . 6
PRE-START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
System Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Leak Test and Dehydration
. . . . . . . . . . .. . . . . . . . . . 8
Turn On Crankcase Heater
. . . . . . . . . . . . . . . . . . . . 8
Preliminary Charge
. . . . . . . . . . . . . . . . . . . . . . . . . . ... 8
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 8-10
OPERATING SEQUENCE
. . . . . . . . . . . . . . . . . . . . . . 8
Cooling
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 10
Heating
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 10-12
Capacity Control (38AKS Units)
. . …….. . .. . . . . . . 10
Time Guard II Circuit (38AKS)
. . . . . . . . . ……... . . . 10
Crankcase Heater
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Compressor Protection
. . . . . . . . . . . . . . .. . . . . . . . . 10
Low-Pressure Switches
. . . . . . . . . . . . . . . . . . . . . . . 11
High-Pressure Switches
. . . . . . . . . . . . .. . . . . . . . . . .11
Outdoor Fans
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lubrication
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Coil Cleaning and Maintenance
. . . . . . . . . . . . . . . . 12
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . .13-14
START-UP CHECKLIST
. . . . . . . . . . . ……….... . 14-15
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning
equipment can be hazardous due to system pressures,
electrical components, and equipment location (roofs,
elevated structures, etc).
Only trained, qualified installers and service
mechanics should install, start-up, and service this
equipment.
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
when brazing. Use care in handling, rigging and
setting bulky equipment.
WARNING
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.
INSTALLATION
Step 1
— Complete Pre-Installation Checks
Remove unit packaging after the unit is rigged into its
final location. ( see Fig.1)
INSPECT SHIPMENT — File a claim with shipping
company if the shipment is damaged or incomplete.
CONSIDER SYSTEM REQUIREMENTS
• Consult local building codes and National Electrical
Code for special installation requirements.
Fig. 1 Model 38AKS013
• Allow sufficient space for airflow clearance, wiring,
refrigerant piping, and servicing unit. See Fig. 2 for
unit dimensions and weight distribution data.
• Locate the unit so that the outdoor coil (condenser)
airflow is unrestricted on all sides and above.
• The unit may be mounted on a level pad directly on
the base channels or mounted on raised pads at support
points. See Tables 1A,1B for unit operating weights.
See Fig. 2 for weight distribution based on
recommended support points.
NOTE: If vibration isolators are required for a
particular installation, use the data in Fig. 1-4 to make
the proper selection
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Summary
3 Table 1A – physical Data – 38AKS013-024 Units – 50Hz, English UNIT 38AK 013 016 S024 NOMINAL CAPACITY (tons) 10.6 15 20 OPERATING WEIGHTS (lb) Aluminum-Fin coils (standard) 732 789 900 Copper-Fin Coils (optional) 825 929 1040 REFRIGERANT* R-22 Operating Charge, typical (lb)† 22 23 28 Shipping Char...
4 Table 1B – physical data – 38AKS013-024 Units – 50Hz, SI UNIT 38AK 013 016 S024 NOMINAL CAPACITY (kw) 37.8 50.2 62.5 OPERATING WEIGHTS (kg) Aluminum-fin Coils (standard) 748 818 1106 Copper-Fin Coils (optional) 818 911 1246 REFRIGERANT* R-22 Operating charge, Typical (kg)† 10 11 12.7 COMPRESSOR Co...
5 and top crating. COMPRESSOR MOUNTING — As shipped, the compressor is held tightly in place by self-locking bolts. Before starting the unit, loosen the self-locking bolts until the snubber washer can be moved sideways with finger pressure. Do not remove the shipping bolts. See Fig. 3 . Step 3 — Com...
