Carrier 38APS025-050 - Manual
Carrier 38APS025-050 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – Table 1 — Unit Sizes; Comfort; 8AP UNIT SIZE
- Page 3 – Fig. 1 — Component Arrangement — Unit Sizes 025-030
- Page 4 – Fig. 2 — Component Arrangement — Unit Sizes 040-060
- Page 5 – Fig. 3 — Component Arrangement — Unit Sizes 070-100
- Page 14 – Fig. 11 — Field Power Wiring; LEGEND; MAT; Mixed Air Temperature Sensor; RAT; Return Air Temperature Sensor; SAT; Supply Air Temperature Sensor
- Page 15 – †Not required for single circuit units.; Not required for single circuit units.; TRIP; †Not required for single circuit units.; TRIP
- Page 16 – Fig. 17 — Optional Energy Management Module Wiring
- Page 17 – Display Module Usage; Enter Password; MODE; ESCAPE; Fig. 18 — Scrolling Marquee Display; Fig. 19 — Accessory Navigator Display Module
- Page 18 – Table 2 — Scrolling Marquee Display Menu Structure*
- Page 19 – Emergency On/Off Switch —; Fig. 20 — Main Base Board
- Page 20 – Carrier Comfort Network; Table 5 — CCN Communication Bus Wiring; Sensors —; CB; Circuit Breaker; SW —; Switch
- Page 21 – Fig. 22 — 33ZCSENSAT Sensor; Fig. 24 — Space Temperature Sensor
- Page 22 – SPACE TEMPERATURE AVERAGING — 4 SENSOR APPLICATION; Fig. 27 — Space Temperature Averaging; SPACE TEMPERATURE AVERAGING — 9 SENSOR APPLICATION
- Page 23 – CAUTION; Fig. 28 — Energy Management Module
- Page 24 – Table 6 — Unit Capacity Control; CTPT; Space Temperature Set Point
- Page 26 – Head Pressure Control —; Table 9 — Fan Stages
- Page 27 – ss; Fig. 30 — Compressor and Fan Location
- Page 28 – Service Test —; Both main power and control circuit; Operating Modes
- Page 29 – Fig. 32 — Space Temperature Reset
- Page 31 – Demand Limit —; Table 13 — Configuring Demand Limit; fort
- Page 32 – Digital Scroll Option —; Table 14 — Configuration VAV 4 to 20 mA Set Point
- Page 33 – UPPL; Fig. 34 — 4 to 20 mA Supply Set Point
- Page 34 – Adjust Refrigerant Charge
- Page 38 – Circuit B
- Page 39 – Circuit A
- Page 41 – Circuit B
- Page 46 – Sight Glass Locations for 38APD025-100 Dual-Circuit Units; LLS —; Liquid Line Solenoid; TXV —; Thermostatic Expansion Valve; Sight Glass Locations for 38APS025-050 Single-Circuit Units
- Page 47 – Set Point; Fig. 60 — Typical Trio Compressor Assembly; Fig. 59 — Typical Tandem Compressor Assembly
- Page 48 – OPERATION; Table 16 — 38AP Unit Ambient Limitations; Operation Sequence —
- Page 49 – not
- Page 53 – Table 21 — 86K Thermistor vs Resistance (DTT)
- Page 54 – Fig. 62 — Mounted Fan Position
- Page 56 – Table 22 — Fault Codes; Mode; Fig. 63 — Motormaster; MMV; Motormaster V Control
- Page 57 – VOLT ONLY; Fig. 64 — Typical Motormaster
- Page 58 – PARAMETER
- Page 59 – Table 24 — Controller Cross-Reference; Table 25 — Replacement Modules
- Page 61 – Alarms and Alerts —; Fig. 66 — Recommended Minimum Cool Down; Fig. 65 — Advanced Scroll Temperature
- Page 64 – Table 26 — Alarm and Alert Codes
- Page 66 – Table 27 — Example of Reading and Clearing Alarms
- Page 67 – APPENDIX A — DISPLAY TABLES; Run Status Mode and Sub-Mode Directory
- Page 68 – Service Test Mode and Sub-Mode Directory
- Page 71 – Configuration Mode and Sub-Mode Directory
- Page 73 – Time Clock Mode and Sub-Mode Directory
- Page 79 – APPENDIX B — CCN TABLES; Status Tables; DESCRIPTION
- Page 81 – CCN Configuration Tables
- Page 82 – CCN Maintenance Tables
- Page 87 – Design Information; II. Preliminary Equipment Check
- Page 88 – Refrigeration System Check
- Page 89 – Start and Operate Machine. Complete the Following:; YES
- Page 90 – Compressor Running Current —
- Page 91 – CUSTOMER
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53380003-01
Printed in U.S.A.
Form 38AP-1T
Pg 1
210 11-09
Replaces: New
Controls, Start-Up, Operation,
Service, and Troubleshooting
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . 1,2
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CONTROLS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
General
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Conventions Used in This Manual
. . . . . . . . . . . . . . . . 2
Display Module Usage
. . . . . . . . . . . . . . . . . . . . . . . . . . 17
• SCROLLING MARQUEE DISPLAY
• ACCESSORY NAVIGATOR™ DISPLAY MODULE
Main Base Board (MBB)
. . . . . . . . . . . . . . . . . . . . . . . . . 18
Current Sensor Board (CSB)
. . . . . . . . . . . . . . . . . . . . 18
Energy Management Module (EMM)
. . . . . . . . . . . . . 18
Compressor Expansion Module (CXB)
. . . . . . . . . . 19
AUX Board (AUX)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Enable/Off/Remote Contact Switch
. . . . . . . . . . . . . . 19
Emergency On/Off Switch
. . . . . . . . . . . . . . . . . . . . . . . 19
Board Addresses
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Control Module Communication
. . . . . . . . . . . . . . . . . 19
Carrier Comfort Network
®
(CCN) Interface
. . . . . . . 20
OPERATING DATA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-33
Sensors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
• RETURN AIR TEMPERATURE (RAT) ACCESSORY
• SUPPLY AIR TEMPERATURE (SAT) ACCESSORY
• COMPRESSOR RETURN GAS TEMPERATURE
SENSOR (RGT)
• OUTDOOR-AIR TEMPERATURE SENSOR (OAT)
• DISCHARGE TEMPERATURE THERMISTOR (DTT)
• SPACE TEMPERATURE SENSOR (SPT)
Fan Status Input
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Thermostat Input
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Pressure Transducer Inputs
. . . . . . . . . . . . . . . . . . . . . 23
Energy Management Module
. . . . . . . . . . . . . . . . . . . . 23
Control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Head Pressure Control
. . . . . . . . . . . . . . . . . . . . . . . . . . 26
Service Test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Operating Modes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Operation of Machine Based on Control
Method
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Set Point Adjustment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Demand Limit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
• DEMAND LIMIT (2-Stage Switch Controlled)
• EXTERNALLY POWERED DEMAND LIMIT
(4 to 20 mA Controlled)
• DEMAND LIMIT (CCN Loadshed Controlled)
Cooling Set Point (4 to 20 mA)
. . . . . . . . . . . . . . . . . . 32
Digital Scroll Option
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PRE-START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
System Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-49
Preliminary Charge
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Adjust Refrigerant Charge
. . . . . . . . . . . . . . . . . . . . . . 34
Check Compressor Oil Level
. . . . . . . . . . . . . . . . . . . . 47
Final Checks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Page
Oil Charge
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Actual Start-Up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Operating Limitations
. . . . . . . . . . . . . . . . . . . . . . . . . . . 48
• AMBIENT LIMITATIONS
• VOLTAGE (ALL UNITS)
Operation Sequence
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-59
Electronic Components
. . . . . . . . . . . . . . . . . . . . . . . . . 49
• CONTROL COMPONENTS
Thermistors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Pressure Transducers
. . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Condenser Fans
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Motormaster
®
V Controller
. . . . . . . . . . . . . . . . . . . . . . 54
• GENERAL OPERATION
• CONFIGURATION
• DRIVE PROGRAMMING
• EPM CHIP
• LOSS OF CCN COMMUNICATIONS
• TROUBLESHOOTING
• REPLACING DEFECTIVE MODULES
Compressors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
MAINTENANCE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59,60
Recommended Maintenance Schedule
. . . . . . . . . . 59
Microchannel Heat Exchanger (MCHX) Condenser
Coil Maintenance and Cleaning
Recommendations
. . . . . . . . . . . . . . . . . . . . . . . . . . . 60
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . 60-66
Complete Unit Stoppage and Restart
. . . . . . . . . . . . 60
• GENERAL POWER FAILURE
• UNIT ENABLE-OFF-REMOTE CONTACT SWITCH
IS OFF
• FAN STATUS INPUT OPEN
• OPEN 24-V CONTROL CIRCUIT BREAKER(S)
• COOLING LOAD SATISFIED
• THERMISTOR FAILURE
• COMPRESSOR SAFETIES
Alarms and Alerts
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
APPENDIX A — DISPLAY TABLES
. . . . . . . . . . . 67-78
APPENDIX B — CCN TABLES
. . . . . . . . . . . . . . . . 79-84
START-UP CHECKLIST FOR 38AP SPLIT SYSTEM
CONDENSING UNIT
. . . . . . . . . . . . . . . . . . . . CL-1-CL-5
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can be
hazardous due to system pressures, electrical components, and
equipment location (roof, elevated structures, mechanical
rooms, etc.). Only trained, qualified installers and service
mechanics should install, start up, and service this equipment.
GEMINI™ SELECT
38APS025-050,38APD025-100
Commercial Air-Cooled Condensing Units
with
COMFORT
LINK™ Controls
50/60 Hz
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
2 When working on this equipment, observe precautions in the literature, and on tags, stickers, and labels attached to the equipment, and any other safety precautions that apply. Follow all safety codes. Wear safety glasses and work gloves. Use care in handling, rigging, and setting this equipment, ...
3 Fig. 1 — Component Arrangement — Unit Sizes 025-030 LEGEND AUX — Auxiliary C — Contactor CB — Circuit Breaker CCHR — Crankcase Heater Relay CSB — Current Sensor Board EMM — Energy Management Module EQUIP GND — Equipment Ground FB — Fuse Block FC — Fan Contactor LON — Local Operating Network MBB — ...
4 Fig. 2 — Component Arrangement — Unit Sizes 040-060 LEGEND AUX — Auxiliary C — Contactor CB — Circuit Breaker CCH — Crankcase Heater Relay CSB — Current Sensor Board EMM — Energy Management Module EQUIP GND — Equipment Ground FC — Fan Contactor FCB — Fan Circuit Breaker LON — Local Operating Netwo...
