Page 1 (CCN) Interface ..22 ® Carrier Comfort Network • MINUTES OFF TIME ComfortLink Control Boards......23 •...
Page 2: Table Of Contents
CONTENTS (cont) WARNING Page DO NOT VENT refrigerant relief valves within a building. MAINTENANCE ........161 Outlet from relief valves must be vented outdoors in Recommended Maintenance Schedule.
Page 3: General
38AP condensing units with ComfortLink controls. The 38AP names in text. air-cooled condensing units are intended for commercial com- The CCN (Carrier Comfort Network ® ) point names are also fort-cooling applications. Multiple scroll compressors are referenced in the local display tables for users configuring the staged to provide capacity control.
Page 4 Table 2 — Component, Power, and Control Drawings UNIT DESCRIPTION LOCATION Component Arrangement Fig. 1, page 5 38APS025 Power Wiring Schematic Fig. 5, page 9 Control Wiring Schematic Fig. 11, page 15 Component Arrangement Fig. 1, page 5 38APD025 Power Wiring Schematic Fig.
Page 9 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. a38-7409 Fig. 5 — Power Wiring Schematic — 38APD,APS025-030 (Typical)
Page 10 NOTE: Typical drawing shown. Refer to a38-7410 unit wiring diagram label for specific unit. Fig. 6 — Power Wiring Schematic — 38APS040,050 (Typical)
Page 11 a38-7411 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. Fig. 7 — Power Wiring Schematic — 38APD040-060 (Typical)
Page 12 a38-7414 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. Fig. 8 — Power Wiring Schematic — 38APS065 (Typical)
Page 13 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. a38-7412 Fig. 9 — Power Wiring Schematic — 38APD070-100 (Typical)
Page 14 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. a39-7413 Fig. 10 — Power Wiring Schematic — 38APD115,130 (Typical)
Page 15 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. a38-7417 Fig. 11 — Control Wiring Schematic — 38APS025-050 (Typical)
Page 16 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. a38-7415 Fig. 12 — Control Wiring Schematic — 38APD025-060 (Typical)
Page 17 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. a38-7418 Fig. 13 — Control Wiring Schematic — 38APS065 (Typical)
Page 18 a38-7416 NOTE: Typical drawing shown. Refer to unit wiring diagram label for specific unit. Fig. 14 — Control Wiring Schematic — 38APD070-130 (Typical)
Page 19 Legend and Notes for Fig. 5-14 LEGEND NOTES: 1. Factory wiring is in accordance with UL (Underwriters Labora- ACCSY — Accessory tories) 1995 standards. Any field modifications or additions — Alarm must be in compliance with all applicable codes. AMPS —...
Page 20 a38-7122 LEGEND b. Incoming wire size range for terminal block with MCA from 175.1 amps to 420 amps is 2 AWG to 600 kcmil. EQUIP GND — Equipment Ground c. Incoming wire size range for non-fused disconnect with MCA up to —...
Page 21: Display Module Usage
attached to the back of the display hold the display module to Display Module Usage any sheet metal panel to allow hands-free operation. The dis- SCROLLING MARQUEE DISPLAY — This device is the keypad interface used for accessing unit information, reading play module has a NEMA (National Electrical Manufacturers sensor values, and testing the unit.
Page 22: Changing The Display Language
LEDs and display all pixels in the ENTER ® Carrier Comfort Network (CCN) Interface — view screen. Pressing the up and down arrow keys simultane- The 38AP units can be connected to the CCN if desired. The ously allows the user to adjust the display brightness.
Page 23: Comfortlink Control Boards
(for example, a marquee display only. laptop computer running Service Tool). Yellow LED — The Main Base Board has one yellow LED. The Carrier Comfort Network (CCN) LED will blink during ® IMPORTANT: A shorted CCN bus cable will prevent some times of network communication.
Page 24: Aux Board
Addressing — The board address is set by the DIP switch S1 The MBB also controls several outputs. Information is trans- as follows: mitted between modules via a 3-wire communication bus or LEN. The CCN (Carrier Comfort Network ® ) bus is also sup- SWITCH NUMBER/POSITION ported.
Page 25 DIP SWITCH LOCATION OF SERIAL NUMBER STATUS SIO (LEN) CH13 CH10 CH12 CH11 Fig. 20 — AUX Board CEBD430350-09-RA SST-A (J4) (J3) STATUS DIP SWITCH S1 LEN LED STATUS Fig. 21 — Compressor Expansion Board (CXB)
Page 26: Inputs
ENERGY MANAGEMENT MODULE (EMM) — The EMM module (Fig. 22) is a factory-installed option or field-in- Several inputs are used for status signals and safe- Inputs — stalled accessory that provides inputs for various energy man- ties. See Table 6. agement or unit control functions as listed below: CURRENT SENSING BOARD (CSB) —...
Page 27: Emergency On/Off Switch
Table 7 — Current Sensing Board (CSB) Input Connections 38AP CURRENT SENSING BOARD CONNECTION UNIT CSB-A1 CSB-A2 CSB-A3 CSB-B1 CSB-B2 CSB-B3 38APD025 MBB-J9 — — MBB-J9 — — 38APS025 MBB-J9 MBB-J9 — — — — 38APD027 MBB-J9 — — MBB-J9 — — 38APS027 MBB-J9 MBB-J9 —...
Page 28: Enable/Off/Remote Contact Switch
If a broadcast is not received for 3 minutes a thermis- Table 8 — Pressure Transducer Identification tor failure alert will be generated. The broadcast should write to the CCN point, RETURN_T. Even though the MAT/RAT tem- PRESSURE CARRIER BODY perature is being broadcast, a thermistor type Configuration TRANSDUCER RANGE,...
Page 29: Thermistors
Table 9 — Thermistors WIRING DIAGRAM FIELD CONTROLLER REFERENCE THERMISTOR COMMENTS DESIGNATION CONNECTION CONNECTION VOLTAGE Discharge Temperature Factory AUX-J6 CH11 5.0 vdc Digital compressor units only Thermistor Outside Air Factory MBB-J8-7, 8 4.0 vdc Temperature Return Air LVT-19, -20 MBB-J8-11, 12 4.0 vdc Temperature Return Gas...
Page 30 Supply Air Temperature (SAT) — A supply air temperature In lieu of wiring a sensor to the 38AP controls, the SAT sen- sensor is required for certain control types discussed in the sec- sor reading can be broadcast to the unit. It is recommended tion Capacity Control, beginning on page 64.
Page 31 Return Gas Temperature (RGT) — These sensors are factory installed in a friction fit well located in the suction line of each circuit. The sensor is a 5,000 at 77 F (25 C) thermistor con- nected to the main base board. These thermistors are used in the suction superheat calculations.
Page 32: Sensor Locations
To connect the space temperature sensor (Fig. 30): 1. Use a 20 gage wire to connect the sensor to the controller. The wire is suitable for distances of up to 500 ft (152 m). Use a three-conductor shielded cable for the sensor and SENSOR set point adjustment connections.
Page 33 WITH CORK INSULATION TAPE LEGEND DPT — Discharge Pressure Transducer — Discharge Temperature Thermistor — Outside Air Temperature Thermistor OFM — Outdoor Fan Motor RGT — Return Gas Thermistor — Suction Pressure Transducer Fig. 33 — 38APS025, 027, 030 Sensor Locations...
Page 34 DPT-A (RED) HPS-B HPS-A DPT-B (RED) RGT-B—INSULATE WITH CORK INSULATION TAPE SPT-B LEGEND (YEL) DPT — Discharge Pressure Transducer — Discharge Temperature Thermistor SPT-A HPS — High Pressure Switch (YEL) — Outside Air Temperature Thermistor OFM — Outdoor Fan Motor RGT —...
Page 35 RGT-A—INSULATE WITH CORK INSULATION TAPE RGT-B—INSULATE SPT-A WITH CORK (YEL) INSULATION HPS-A TAPE DPT-A SPT-B (RED) (YEL) HPS-B DPT-B (RED) LEGEND DPT — Discharge Pressure Transducer — Discharge Temperature Thermistor HPS — High Pressure Switch — Outside Air Temperature Thermistor RGT —...
Page 36 RGT-A—INSULATE WITH CORK INSULATION TAPE SPT-A (YEL) DPT-A (RED) HPS-A LEGEND DPT — Discharge Pressure Transducer — Discharge Temperature Thermistor HPS — High Pressure Switch RGT — Return Gas Thermistor — Suction Pressure Transducer Fig. 38 — 38APD070,080 Sensor Locations, Circuit A RGT-B—INSULATE WITH CORK INSULATION...
Page 37 RGT-A—INSULATE WITH CORK INSULATION TAPE SPT-A (YEL) HPS-A DPT-A (RED) LEGEND DPT — Discharge Pressure Transducer — Discharge Temperature Thermistor HPS — High Pressure Switch RGT — Return Gas Thermistor — Suction Pressure Transducer Fig. 40 — 38APD090, 100 Sensor Locations Circuit A RGT-B—INSULATE WITH CORK INSULATION...
Page 38 RGT-A—INSULATE WITH CORK INSULATION SPT-A TAPE (YEL) HPS-A DPT-A (RED) LEGEND DPT — Discharge Pressure Transducer — Discharge Temperature Thermistor HPS — High Pressure Switch RGT — Return Gas Thermistor — Suction Pressure Transducer Fig. 42 — 38APD115, 130 Sensor Locations Circuit A RGT-B—INSULATE SPT-B WITH CORK...
Page 39 CONTROL BOX INTERIOR (NOT TO SCALE) a38-7346 TO A1 HPS-A DIG. COMP. SPT-B DPT-A - DUS DPT-B SPT-A - DTT OAT (ATTACHED TO OUTSIDE BACK OF CONTROL BOX) LEGEND DPT — Discharge Pressure Transducer — Discharge Temperature Thermistor DUS — Digital Unloaded Solenoid HPS —...
Page 40: Controls
LVT-1 and LVT-2. gized for at least 24 hours. See the Oil Charge section on For alarm relay specifications see the appropriate machine con- page 147 for Carrier-approved oils. trol type wiring diagrams. 5. Electrical power source must agree with unit nameplate.
Page 41: Start-Up
IMPORTANT: Before beginning Pre-Start-Up or Start-Up, 38AP UNIT SIZE CIRCUIT A CIRCUIT B review Start-Up Checklist at the back of this publication. 38APS025 24 (10.9) — The checklist assures proper start-up of a unit and provides a 38APD025 12 (5.6) 12 (5.6)
Page 42 With all fans operating and all compressors on the circuit being serviced operating at full capacity, adjust the refrigerant CAUTION charge in accordance with the unit charging charts in Fig. 50- 76. It is recommended that the full load superheat be between Never charge liquid into the low pressure side of system.
Page 43 As conditions get close to the point on the chart, add or remove charge in 1/4 lb (0.11 kg) increments until complete. Ensure that all fans are on and all compressors are running when using charging charts. Fig. 51 — Charging Chart — 38APS025, 50/60 Hz Circuit A or B...
Page 44 Single Circuit 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE LIQUID PRESSURE AT LIQUID VALVE (PSIG) a38-7172 1500 4000 2000 2500 3000 3500 LEGEND...
Page 45 Single Circuit 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE LIQUID PRESSURE AT LIQUID VALVE (PSIG) a38-7174 1500 4000 2000 2500 3000 3500 LIQUID PRESSURE AT LIQUID VALVE (kPag)
Page 46 Circuit B 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE a38-7176 LIQUID PRESSURE AT LIQUID VALVE (PSIG) 1500 4000 2000 2500 3000 3500 LEGEND...
Page 47 Circuit A 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE a38-7178 LIQUID PRESSURE AT LIQUID VALVE (PSIG) 1500 4000 2000 2500 3000 3500 LEGEND...
Page 48 Single Circuit 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE LIQUID PRESSURE AT LIQUID VALVE (PSIG) a38-7180 1500 4000 2000 2500 3000 3500 LEGEND...
Page 49 Circuit B 130.0 130.0 50 SST 50 SST 40 SST 40 SST 120.0 120.0 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE 110.0 110.0 100.0 100.0 90.0 90.0 REDUCE CHARGE IF BELOW CURVE REDUCE CHARGE IF BELOW CURVE 80.0 70.0 60.0...
Page 50 Circuit A 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE LIQUID PRESSURE AT LIQUID VALVE (PSIG) a38-7183 1500 4000 2000 2500 3000 3500 LEGEND...
Page 51 Circuit A 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE a38-7185 LIQUID PRESSURE AT LIQUID VALVE (PSIG) 1500 4000 2000 2500 3000 3500 LEGEND...
Page 52 Circuit A 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE LIQUID PRESSURE AT LIQUID VALVE (PSIG) a38-7187 1500 4000 2000 2500 3000 3500 LIQUID PRESSURE AT LIQUID VALVE (kPag)
Page 53 Circuit A 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE LIQUID PRESSURE AT LIQUID VALVE (PSIG) a38-7189 1500 4000 2000 2500 3000 3500 LEGEND...
Page 54 Circuit A 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE a38-7189 LIQUID PRESSURE AT LIQUID VALVE (PSIG) 1500 4000 2000 2500 3000 3500 LEGEND...
Page 55 Circuit A 50 SST 50 SST 40 SST 40 SST 30 SST 30 SST ADD CHARGE IF ABOVE CURVE ADD CHARGE IF ABOVE CURVE REDUCE CHARGE IF BELOW CURVE LIQUID PRESSURE AT LIQUID VALVE (PSIG) a38-7189 1500 4000 2000 2500 3000 3500 LEGEND...
Page 56 SOLENOID VALVE† SECTION 1 LIQUID LINE SECTION 2 SOLENOID VALVE† *Field-supplied. †Field-supplied when required. Must be controlled by 38AP unit control. Fig. 78 — Required Location of Solenoid Valves and Recommended Filter Drier and Sight Glass Locations for 38APS025-050,065 Single-Circuit Units...
Page 57: Check Compressor Oil Level
Values listed are estimates IMPORTANT: Oil level should only be checked when the only. See Adding Oil section on page 147 for Carrier-approved compressors are off. oils. After operating the compressor for a period of time, the oil level should be between of the oil sight glass.
Page 58 UP to 7.5 m 7.5 to 15 m 15 to 22.5 m 22.5 to 30 m 30 to 37.5 m 37.5 to 45 m 45 to 52.5 m 52.5 to 60 m 38APD025 38APS025 Single 38APD027 38APS027 Single 38APD030 38APS030 Single 1283...
Page 59: Operation
UP to 7.5 m 7.5 to 15 m 15 to 22.5 m 22.5 to 30 m 30 to 37.5 m 37.5 to 45 m 45 to 52.5 m 52.5 to 60 m 38APD025 38APS025 Single 38APD027 38APS027 Single 38APD030 38APS030 Single 38APD040...
Page 60: Control Methods
Table 16 — Time Required Configuration TIME CLOCK MODE SUBMODE ITEM DISPLAY ITEM DESCRIPTION COMMENT 24-hour format TIME HH.MM XX.XX Hour and Minute Range: 00.00 to 23.59 Table 17 — Day and Date Required Configurations TIME CLOCK MODE SUBMODE ITEM DISPLAY ITEM DESCRIPTION COMMENT...
Page 61: Occupancy Schedule
temperature is satisfied, the Control Mode 9 (SPT Satisfied) automatically adjust the time for daylight savings time. See the will be displayed. section Daylight Savings Time on page 59. OCCUPANCY SCHEDULE — With the control method set If holidays are to be used, they must be configured. Thirty to Occupancy, CTRL=2 (Occupancy), the Main Base Board holidays are provided as part of the local schedules, HD.01 will use the operating schedules as defined under the Time...
Page 62 Table 21 — Occupancy Schedule Required Configurations TIME CLOCK MODE SUB- SUBMODE ITEM DISPLAY ITEM DESCRIPTION COMMENT SUBMODE Default: 0 SCH.N Schedule Number XX Range: 0 to 99 Example = 1 Default: 00.00 OCC.1 XX.XX Period Occupied Time Range: 00.00 to 23.59 Example = 06.00 Default: 00.00 UNC.1...
Page 63 MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY HOLIDAY 12:00 AM 3:00 AM 6:00 AM 9:00 AM 12:00 PM 3:00 PM 6:00 PM 9:00 PM 12:00 AM LEGEND — Occupied Fig. 79 — Example Schedule CCN Global Schedule — Schedule Numbers, Time Clock Modes MODE MD06, Timed Override in Effect will be SCH.N from 65 to 99 indicate operation under a CCN Global...
Page 64: Capacity Control
pushed. This item has a range of 0 to 4 hours and should be set Units controlled via communications by a separate third- to the limit desired for the override period. See Table 24. party building automation system through a translator or UPC Open Controller must be set to CCN Control, CTRL=3.
Page 65 38AP LVT TERMINAL STRIP DEMAND LIMIT STEP 1 DEMAND LIMIT STEP 2 4-20 mA – SIGNAL DEMAND GENERATOR LIMIT SIGNAL 4-20 mA – SIGNAL TEMPERATURE GENERATOR RESET SIGNAL SAT (REQUIRED) REMOTE ON/OFF MAT/RAT (REQUIRED) LLSV-B (38APD) LLSV-A2 (38APS) or LLSV-B2 (065) LLSV-A or LLSV-B (065) FIELD-SUPPLIED...
Page 66 Table 25 — C.TYP=1 (VAV) Required Configuration CONFIGURATION MODE SUBMODE ITEM DISPLAY ITEM DESCRIPTION COMMENT Default: 0 Range: 0 to 2 Must be set for appropriate value: RAT.T RAT Thermistor Type 0 = 5 k 1 = 10 k 2 = None OPT1 Default: 0 Range: 0-2...
Page 67: C.typ = 3 (Tstat Multi
As the capacity requirement begins to decrease, the ma- Required Configurations — Table 27 lists the configurations chine controls will reduce the unit’s capacity to maintain the required for proper operation. Control Point. If the unit is equipped with Minimum Load Recommended Settings —...
Page 68 38AP LVT TERMINAL STRIP DEMAND LIMIT STEP 1 DEMAND LIMIT SIGNAL 4-20 mA – SIGNAL DEMAND LIMIT STEP 2 GENERATOR TEMPERATURE RESET SIGNAL 4-20 mA – SIGNAL GENERATOR THERMOSTAT (REQUIRED) SAT (REQUIRED) REMOTE ON/OFF MAT/RAT (REQUIRED) LLSV-B (38APD) LLSV-A2 (38APS) or LLSV-B2 (065) LLSV-A or LLSV-B (065)
Page 69 On power up or changing from Off to Enabled, the machine As the capacity requirement begins to decrease, the ma- will remain off until Minutes Off Time (Configuration chine controls will reduce the unit’s capacity to maintain the OPT2 DELY) timer has expired. See Minutes Off Time on Control Point.
Page 70 38AP LVT TERMINAL STRIP DEMAND LIMIT STEP 1 DEMAND DEMAND LIMIT STEP 2 THERMOSTAT LIMIT SIGNAL (REQUIRED) 4-20 mA – SIGNAL GENERATOR REMOTE ON/OFF LLSV-B (38APD) LLSV-A2 (38APS) or LLSV-B2 (065) LEGEND — Air-Handling Unit LLSV-A ALM R — Alarm Relay or LLSV-B (065) —...
Page 71: C.typ = 5 (Spt Multi
Sequence of Operation — The MBB monitors the thermostat intervals until the unit’s capacity is as close as possible to 50% inputs to make a determination of capacity stage. When Y1 without exceeding it. If additional capacity requires the lag cir- closes, no more than 50% of the unit’s capacity will be ener- cuit to start, the lag circuit’s lead compressor will be deter- gized.
Page 72 Recommended Applications — This control scheme is rec- If a T56 or T59 space temperature offset sensor is in- ommended for constant volume applications and is compatible stalled, it is possible to configure the range of the slider by ad- with both standard and digital compressor operation.
Page 73 38AP LVT TERMINAL STRIP DEMAND LIMIT STEP 1 DEMAND LIMIT SIGNAL 4-20 mA – DEMAND LIMIT STEP 2 SIGNAL GENERATOR TEMPERATURE RESET SIGNAL 4-20 mA – SIGNAL GENERATOR SAT (REQUIRED) REMOTE ON/OFF MAT/RAT (REQUIRED) SPT (REQUIRED) LLSV-B (38APD) LLSV-A2 (38APS) or LLSV-B2 (065) LEGEND ALM R...
Page 74 Sequence of Operation — The MBB monitors the space tem- which time the Control Point will change to CSP.1. CSP.1 will perature input together with the unit configurations to make a remain the Control Point until the Space Temperature falls be- determination of Control Point Run Status VIEW CTPT.
Page 75 For mechanical cooling, the unit’s Control Method (Con- Compressor Staging on page 112. If the lead compressor is a figuration OPT2 CTRL) and inputs must allow the ma- digital compressor and is enabled, the compressor will start chine to run. See Control Methods on page 60 for additional fully loaded for 90 seconds prior to starting to cycle between information.
Page 76 Table 33 — C.TYP=7 (Pct Cap) Required Configuration CONFIGURATION MODE SUBMODE ITEM DISPLAY ITEM DESCRIPTION COMMENT Default: 0 Range: 0 to 2 Must be set for appropriate value: RAT.T RAT Thermistor Type 0 = 5 k 1 = 10 k 2 = None* OPT1 Default: 0...
Page 77 Sequence of Operation — Capacity control is determined by For specific information on Time Guard, see MDTG - Time the signal provided by the Building Management System. The Guard Active on page 135. field-supplied 4 to 20 mA signal is converted to a linear scale In this Control Type, Space Temp Control Mode, Run for percent capacity vs.
Page 78 38APS Units — On a call for cooling, the Indoor Fan Status seconds. During operation, the controls will stage the condens- Cir A (Inputs GEN.I ID.F.A) is checked. The switch must er fans to maintain head pressure. See Head Pressure Control be closed before the capacity routine will start.
Page 79 a38-7348 Fig. 88 — Capacity Loading, C.TYP=7 38APD,APS025-030, Digital, Equal (Default) or Staged Circuit Loading, Circuit A (38APD Only) Leads a38-7349 Fig. 89 — Capacity Loading, C.TYP=7 38APD040, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 80 a38-7350 Fig. 90 — Capacity Loading, C.TYP=7 38APD040, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads a38-7351 Fig. 91 — Capacity Loading, C.TYP=7 38APD040, Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 81 a38-7352 Fig. 92 — Capacity Loading, C.TYP=7 38APD040, Non-Digital, Staged Circuit Loading, Circuit A Leads a38-7353 Fig. 93 — Capacity Loading, C.TYP=7 38APD040, Non-Digital, Staged Circuit Loading, Circuit B Leads...
Page 82 a38-7354 Fig. 94 — Capacity Loading, C.TYP=7 38APD040, Digital, Staged Circuit Loading, Circuit A Leads a38-7355 Fig. 95 — Capacity Loading, C.TYP=7 38APD050, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 83 A38-7356 Fig. 96 — Capacity Loading, C.TYP=7 38APD050, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads a38-7357 Fig. 97 — Capacity Loading, C.TYP=7 38APD050, Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 84 a38-7358 Fig. 98 — Capacity Loading, C.TYP=7 38APD050, Non-Digital, Staged Circuit Loading, Circuit A Leads a38-7359 Fig. 99 — Capacity Loading, C.TYP=7 38APD050, Non-Digital, Staged Circuit Loading, Circuit B Leads...
Page 85 a38-7360 Fig. 100 — Capacity Loading, C.TYP=7 38APD050, Digital, Staged Circuit Loading, Circuit A Leads a38-7361 Fig. 101 — Capacity Loading, C.TYP=7 38APD060, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 86 38AP-7362 Fig. 102 — Capacity Loading, C.TYP=7 38APD060, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads a38-7363 Fig. 103 — Capacity Loading, C.TYP=7 38APD060, Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 87 a38-7364 Fig. 104 — Capacity Loading, C.TYP=7 38APD060, Non-Digital, Staged Circuit Loading, Circuit A Leads a38-7365 Fig. 105 — Capacity Loading, C.TYP=7 38APD060, Non-Digital, Staged Circuit Loading, Circuit B Leads...
Page 88 a38-7366 Fig. 106 — Capacity Loading, C.TYP=7 38APD060, Digital, Staged Circuit Loading, Circuit A Leads a38-7367 Fig. 107 — Capacity Loading, C.TYP=7 38APD070, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 89 a38-7368 Fig. 108 — Capacity Loading, C.TYP=7 38APD070, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads a38-7369 Fig. 109 — Capacity Loading, C.TYP=7 38APD070, Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 90 A38-7370 Fig. 110 — Capacity Loading, C.TYP=7 38APD070, Non-Digital, Staged Circuit Loading, Circuit A Leads a38-7371 Fig. 111 — Capacity Loading, C.TYP=7 38APD070, Non-Digital, Staged Circuit Loading, Circuit B Leads...
Page 91 a38-7372 Fig. 112 — Capacity Loading, C.TYP=7 38APD070, Digital, Staged Circuit Loading, Circuit A Leads A38-7373 Fig. 113 — Capacity Loading, C.TYP=7 38APD080, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 92 a38-7374 Fig. 114 — Capacity Loading, C.TYP=7 38APD080, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads a38-7375 Fig. 115 — Capacity Loading, C.TYP=7 38APD080, Digital, Equal (Default) or Staged Circuit Loading, Circuit A Leads...
Page 93 a38-7376 Fig. 116 — Capacity Loading, C.TYP=7 38APD080, Non-Digital, Staged Circuit Loading, Circuit A Leads a38-7377 Fig. 117 — Capacity Loading, C.TYP=7 38APD080, Non-Digital, Staged Circuit Loading, Circuit B Leads...
Page 94 a38-7378 Fig. 118 — Capacity Loading, C.TYP=7 38APD090, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads a38-7379 Fig. 119 — Capacity Loading, C.TYP=7 38APD090, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads...
Page 95 a38-7380 Fig. 120 — Capacity Loading, C.TYP=7 38APD090, Digital, Equal (Default) Circuit Loading, Circuit A Leads a38-7381 Fig. 121 — Capacity Loading, C.TYP=7 38APD090, Non-Digital, Staged Circuit Loading, Circuit A Leads...
Page 96 a38-7382 Fig. 122 — Capacity Loading, C.TYP=7 38APD090, Non-Digital, Staged Circuit Loading, Circuit B Leads a38-7383 Fig. 123 — Capacity Loading, C.TYP=7 38APD090, Digital, Staged Circuit Loading, Circuit A Leads...
Page 97 a38-7384 Fig. 124 — Capacity Loading, C.TYP=7 38APD100, Non-Digital, Equal (Default) or Staged Circuit Loading, Circuit A or B Leads a38-7385 Fig. 125 — Capacity Loading, C.TYP=7 38APD100, Digital, Equal (Default) or Staged Circuit Loading, Circuit A Leads...
Page 98 A38-7386 Fig. 126 — Capacity Loading, C.TYP=7 38APD115, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads a38-7387 Fig. 127 — Capacity Loading, C.TYP=7 38APD115, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads...
Page 99 a38-7388 Fig. 128 — Capacity Loading, C.TYP=7 38APD115, Digital, Equal (Default) Circuit Loading, Circuit A Leads a38-7389 Fig. 129 — Capacity Loading, C.TYP=7 38APD115, Non-Digital, Staged Circuit Loading, Circuit A Leads...
Page 100 a38-7390 Fig. 130 — Capacity Loading, C.TYP=7 38APD115, Non-Digital, Staged Circuit Loading, Circuit B Leads a38-7391 Fig. 131 — Capacity Loading, C.TYP=7 38APD115, Digital, Staged Circuit Loading, Circuit A Leads...
Page 101 A38-7392 Fig. 132 — Capacity Loading, C.TYP=7 38APD130, Non-Digital, Equal (Default) Circuit Loading, Circuit A Leads a38-7393 Fig. 133 — Capacity Loading, C.TYP=7 38APD130, Non-Digital, Equal (Default) Circuit Loading, Circuit B Leads...
Page 102 a38-7394 Fig. 134 — Capacity Loading, C.TYP=7 38APD130, Digital, Equal (Default) Circuit Loading, Circuit A Leads a38-7395 Fig. 135 — Capacity Loading, C.TYP=7 38APD130, Non-Digital, Staged Circuit Loading, Circuit A Leads...
Page 103 a38-7396 Fig. 136 — Capacity Loading, C.TYP=7 38APD130, Non-Digital, Staged Circuit Loading, Circuit B Leads a38-7397 Fig. 137 — Capacity Loading, C.TYP=7 38APD130, Digital, Staged Circuit Loading, Circuit A Leads...
Page 104 a38-7398 Fig. 138 — Capacity Loading, C.TYP=7 38APS040-065, Non-Digital, Equal (Default) or Staged Circuit Loading, Circuit A Leads (38APS040-050), Circuit B Leads (38APS065) a38-7399 Fig. 139 — Capacity Loading, C.TYP=7 38APS040-050, Digital, Equal (Default) Circuit Loading, Circuit A Leads...
Page 105 C.TYP = 8 (DUAL TSTAT) — This configuration allows for On power up or changing from Off to Enabled, the machine the connection and control of a single 38APD unit to two sepa- will remain off until Minutes Off Time (Configuration rate air handlers.
Page 106 FIELD-SUPPLIED TRANSFORMER 38AP LVT (REQUIRED) TERMINAL STRIP AHU1 (CIRCUIT A) THERMOSTAT 24 VAC (REQUIRED) SECONDARY T2-Y1 DEMAND (REQUIRED) LIMIT T2-Y2 SIGNAL 4-20 mA (REQUIRED) – SIGNAL GENERATOR T1-Y1 REMOTE ON/OFF AHU2 (CIRCUIT B) THERMOSTAT (REQUIRED) T1-Y2 (REQUIRED) (REQUIRED) LLSV-B LLSV-A LEGEND —...
Page 107 Table 36 — Space Temperature Control Mode Response for C.TYP=8 Y1 STATUS Y2 STATUS INDOOR FAN STATUS CIR A ID.F.A SPACE TEMPERATURE CONTROL MODE STAT AND/OR AND/OR AND/OR CONTROL MODE Y3 STATUS Y4 STATUS INDOOR FAN STATUS CIR B SPT.M ID.F.B 1 (Off Local) Off or On...
Page 108 Table 37 — C.TYP=9 (VAV Setpoint) Required Configuration CONFIGURATION MODE SUBMODE ITEM DISPLAY ITEM DESCRIPTION COMMENT Default: 0 Range: 0 to 2 Must be set for appropriate value: RAT.T RAT Thermistor Type 0 = 5 k 1 = 10 k 2 = None Default: 0 Range: 0 to 2...
Page 109 38AP LVT TERMINAL STRIP DEMAND LIMIT STEP 1 DEMAND LIMIT STEP 2 4-20 mA – DEMAND SIGNAL LIMIT GENERATOR SIGNAL 4-20 mA – TEMPERATURE SIGNAL RESET GENERATOR SIGNAL REQUESTED 4-20 mA – COOLING SIGNAL SETPOINT GENERATOR SIGNAL (REQUIRED) SAT (REQUIRED) REMOTE ON/OFF MAT/RAT (REQUIRED) LLSV-B (38APD)
Page 110 a38-7285 CL.MA (4-20 mA COOLING SETPOINT INPUT), mA Fig. 142 — Active Setpoint (English) 30.0 25.0 20.0 15.0 10.0 a38-7286 CL.MA (4-20 mA COOLING SETPOINT INPUT), mA Fig. 143 — Active Setpoint (SI) CAPACITY CONTROL ALGORITHMS — Three types of Return Air Temperature Temperatures UNIT RAT and capacity control are available for the 38AP units.
Page 111: Field Configurable Controls
If the unit is equipped with a digital compressor, it is nor- The CCN Point ALRM_CNT is the variable and can be mally the first compressor started. If the lead compressor is a modified with ComfortVIEW software or Network Service digital compressor, and is enabled and available (not in alarm Tool only.
Page 112 COMPRESSOR STAGING — Several factors determine set at equal (Configuration OPT2 LOAD=1). The control which circuit and compressor to start: determines the order in which the steps of capacity for each circuit are changed. Set to equal, the unit will alternate starting Lead/Lag Determination (38APD Units) —...
Page 113 38APD130 A1, A2, B1, B2 A1, A2, B1, B2 A1, A2, A3, B1, B2 A1, A2, B1, B2, B3 A1, A2, A3, B1, B2, B3 A1, A2, A3, B1, B2, B3 38APS025-030 — — A1, A2 38APS040-050 A1, A2 —...
Page 114 38APD130 A1, A2, A3, B1 A1, B1, B2, B3 A1, A2, A3, B1, B2 A1, A2, B1, B2, B3 A1, A2, A3, B1, B2, B3 A1, A2, A3, B1, B2, B3 38APS025-030 — — A1, A2 38APS040-050 A1, A2 —...
Page 115 DEADBAND MULTIPLIER — The user configurable 20 mA input signal. The third type uses the CCN loadshed Deadband Multiplier (Configuration SLCT Z.GN) has a module and has the ability to limit the current operating capaci- default value of 1.0. The range is 1.0 to 4.0. When set to a ty to maximum and further reduce the capacity if required.
Page 116 4-20 mA Controlled Demand Limit — To configure demand limit for 4 to 20 mA control, set the Demand Limit Select CAUTION (Configuration RSET DMDC) to 2. Then configure the Demand Limit at 20 mA (Configuration RSET DM20) to To avoid unit damage, care should be taken when interfac- the maximum loadshed value desired.
Page 117 CCN Loadshed Demand Limit — To configure Demand for 11 seconds, the compressor will be operating at approxi- Limit for CCN Loadshed control, set the Demand Limit Select mately 25% of its capacity. Capacity is the time-averaged sum- (Configuration RSET DMDC) to 3. Then configure the mation of loaded and unloaded states, and its range is Loadshed Group Number (Configuration RSET SHNM), continuous from 10% to 100%.
Page 118 The common fans are controlled by the circuit with the 38APS025-065 — For 38APS025-065 units, when the circuit highest SCT. If the next fan stage is a common fan stage and SCT is greater than F.ON, then an additional stage of fan will one circuit’s SCT is greater than F.ON, the next fan stage will...
Page 119 Table 46 — 38APD,APS040-050 Fan Staging OFM1 OFM3 OFM2 UNIT OPERATING CIRCUIT FAN STAGE OUTPUT POINT NAME* CONTACTOR FANS ENERGIZED FAN1 OFM3 38APD040,050 A (38APS) FAN2 OFM1, OFM2 38APS040,050 A or B (38APD) FAN1 OFM3 ® Without Motormaster Controller FAN2 OFM1, OFM2 FAN1 OFM3†...
Page 120 Table 48 — 38APD070 Fan Staging CKT B CKT A OFM1 OFM3 OFM4 OFM2 UNIT OPERATING CIRCUIT FAN STAGE OUTPUT POINT NAME* CONTACTOR FANS ENERGIZED FAN2 OFM1** 1† FAN4 OFM2 FAN1 OFM3** FAN1 OFM3** FAN3 OFM4 FAN1 OFM3** 1† FAN3 OFM4 38APD070 FAN2...
Page 121 Table 50 — 38APD090, 100 Fan Staging CKT B CKT A OFM1 OFM5 OFM3 OFM6 OFM2 OFM4 UNIT OPERATING CIRCUIT FAN STAGE OUTPUT POINT NAME* CONTACTOR FANS ENERGIZED FAN4 FC4† OFM3 FAN1 OFM5 FAN1 OFM5 FAN4 FC4† OFM3 FAN3 FC3† OFM2, OFM4, OFM6 FAN4 FC4†...
Page 122 Table 50 — 38APD090, 100 Fan Staging (cont) CKT B CKT A OFM1 OFM5 OFM3 OFM6 OFM2 OFM4 UNIT OPERATING CIRCUIT FAN STAGE OUTPUT POINT NAME* CONTACTOR FANS ENERGIZED FAN1 OFM5** FAN1 OFM5** FAN4 FC4† OFM3 FAN1 OFM5** FAN3 FC3† OFM2, OFM4, OFM6 FAN1 OFM5**...
Page 123 Table 51 — 38APD115 Fan Staging CKT B CKT A OFM1 OFM3 OFM7 OFM5 OFM2 OFM8 OFM4 UNIT OPERATING CIRCUIT FAN STAGE OUTPUT POINT NAME* CONTACTOR FANS ENERGIZED FAN1 OFM5 FAN5 OFM7 FAN1 OFM5 FAN5 OFM7 FAN1 OFM5 FAN4 FC4† OFM3, OFM8 FAN5 OFM7...
Page 124 Table 52 — 38APD130 Fan Staging CKT B CKT A OFM1 OFM3 OFM5 OFM7 OFM8 OFM2 OFM6 OFM4 UNIT OPERATING CIRCUIT FAN STAGE OUTPUT POINT NAME* CONTACTOR FANS ENERGIZED FAN1 FC1† OFM5 FAN5 OFM7 FAN1 FC1† OFM5 FAN5 OFM7 FAN1 FC1†...
Page 125 Table 53 — Motormaster Required Configurations 38APD025-060 units, the highest circuit SCT controls the speed signal to the Motormaster V controller to try to maintain CONFIGURATION M.MST it at 105 F (40.6 C). On 38APD070-130 and 38APS025-065 ITEM EXPANSION COMMENTS...
Page 126 The Motormaster V display indicates speed in Hz. connection diagram. See Table 55 for Operating Mode drive parameters and default values. Once the drive is powered, it Motormaster V ® Drive Configuration — The Motormaster will change to the mode selected according to the inputs. See V controller is configured for 1 of 12 operation modes based Fig.
Page 127 MODE 7 MODE 8 Line Voltage: 01 = low line, 02 = high line Carrier Freq: 01 = 4 kHz, 02 = 6 kHz, 03 = 8 kHz Startup mode: flying restart Stop mode: coast to stop Standard Speed source: 01= keypad,...
Page 128 It is strongly recommended that the user NOT change any controls have the ability to provide a reminder for service per- programming without consulting Carrier service personnel. sonnel that regularly scheduled condenser coil maintenance is Unit damage may occur from improper programming.
Page 129 C.TYP=9 (VAV Setpoint). This feature is not available for If Temperature Reset is active, the control will indicate Op- Machine Control Types C.TYP=4 (2 Stg Tstat), C.TYP=7 (Pct erating Mode, Temperature Reset (Operating Modes Cap) and C.TYP=8 (Dual Tstat). MODE MD14 will indicate YES). If the unit is in a cooling mode and configured for ramp NOTE: Temperature Reset is available for a Control Type loading, the control makes 2 comparisons before deciding to...
Page 130: Temperature Reset
RM.F=68.0 °F Remote - Full Reset Temp RM.DG=6.0 ΔF Remote - Degrees Reset RM.NO=72.0 °F Remote - No Reset Temp SPACE TEMPERATURE, °F a38-7300 Fig. 149 — Space Temperature Reset, °F (CRST=4) RM.F=20.0 °C Remote - Full Reset Temp RM.DG=3.3 ΔC Remote Degrees Reset RM.NO=22.2 °C Remote - No Reset Temp...
Page 131 Outside Air Temperature Reset — The 38AP units are The Outside Air Temperature Reset example shown in Table shipped with an outside air sensor, so no additional sensors are 60 and Fig. 151 and 152 provides 0° F (0° C) reset to the required.
Page 132 RM.F=55.0 °F Remote - Full Reset Temp RM.DG=6.0 ΔF Remote Degrees Reset RM.NO=85.0 °F Remote - No Reset Temp A38-7302 OUTSIDE AIR TEMPERATURE, °F Fig. 151 — Outside Air Temperature Reset, °F (CRST=2) RM.F=12.8 °C Remote - Full Reset Temp RM.DG=3.3 ΔC Remote Degrees Reset RM.NO=29.4 °C...
Page 133 4-20 mA Temperature Reset — The energy management The 4-20 mA input temperature reset example shown in Ta- module (EMM) must be used for temperature reset using a 4 to ble 61 and Fig. 153 and 154 provides 0° F (0° C) reset to the 20 mA signal.
Page 134 MA.DG = 6.0 ΔF 4-20 - Degrees Reset A38-7304 4-20 mA INPUT SIGNAL, RSET Fig. 153 — 4-20 mA Temperature Reset, °F (CRST=1) MA.DG = 3.3 ΔC 4-20 - Degrees Reset A38-7305 4-20 mA INPUT SIGNAL, RSET Fig. 154 — 4-20 mA Temperature Reset, °C (CRST=1)
Page 135: Operating Modes
Control will automatically unload the unit if The unit capacity may exceed system requirements. For more necessary. information, contact your Carrier representative. MD18 (High Temperature Cooling) — When this mode is L.OUT (OAT Below Lockout Temp) — When this mode is active (Operating Modes MODE MD18=YES) unit is ON active (Operating Modes MODE L.OUT=YES) the unit is...
Page 136 Table 62 — Operating Modes MODE ITEM EXPANSION DESCRIPTION SYSTEM EFFECT Digital compressor has been running Digital compressor will load completely. below standard Maximum A1 Unload supply air temperature may be lower than D.OIL Digital Oil Recover Mode Time (Configuration UNIT MAX.T) for Control Point (Run Status VIEW more than 30 minutes.
Page 137: Compressors
Compressors CAUTION WARNING Do not manually operate contactors. Serious damage to the machine may result. Do not supply power to unit with compressor cover removed. Failure to follow this warning can cause a fire, Figure 155 shows the location of each compressor within the resulting in personal injury or death.
Page 138: Enabling And Disabling Compressors
a38-7307 Saturated Suction Temperature (°F) Fig. 156 — Compressor Operating Envelope, °F Saturated Suction Temperature (°C) Fig. 157 — Compressor Operating Envelope, °C ENABLING AND DISABLING COMPRESSORS — Compressors in the 38AP units can be enabled or disabled in the controls. To enable or disable a compressor, toggle the value in the Configuration SERV menu for each individual compressor.
Page 139: Motor Overload Protection
while the motor continues to run. After the compressor runs for some time without pumping gas, the motor overload protector CAUTION will open. The longer the compressor runs unloaded, the longer it must cool before the bi-metal disk resets. See Fig. 159 for ap- Restoring the compressor sooner may cause a destructive proximate reset times.
Page 140: Service
1. De-energize control circuit and module power. Remove CoreSense Replacement of Kriwan Motor Protection the control circuit wires from the module (terminals M1 Module — The Kriwan module has been replaced by the Core- and M2). Connect a jumper across these control circuit Sense communication module for motor protection.
Page 141 BLACK WHITE INSTALL IN THIS HOLDING ORIENTATION THERMISTOR WIRE HARNESS PLUGGED INTO 2X2 SOCKET BLACK WHITE A38-7313 HOLDING BLUE Fig. 164 — CoreSense Communication Module Mounting CoreSense Communications Module Troubleshooting — Copeland models with a "TE" in the electrical code (i.e., ZP182KCETED) have a motor overload system that consists A38-7311 of an external CoreSense communication electronic control...
Page 142 The CoreSense module communicates warning codes via a • Code 2 – Open/Shorted Motor Thermistor: The module green flashing LED. Warning codes do not result in a trip or will flash the red Alert LED 2 times indicating the motor lockout condition.
Page 143 Table 63 — CoreSense Communication Module DIP Switch Settings COPELAND DIP SWITCH ELECTRICAL CODE “TE” “TW”* *Settings for Kriwan retrofit. See “CoreSense Replacement of Kriwan Motor Protection Module” on page 140. Table 64 — CoreSense Communication Module LED Flash Codes FAULT CODE TROUBLESHOOTING LED STATUS...
Page 144: Compressor Functional Check
Compressor Discharge Check Valve — A disk-type check valve in the discharge of the compressor prevents high pressure WARNING discharge gas from flowing rapidly back through the compres- sor at shutdown. This same check valve prevents a high to low Electrical shock can cause personal injury and death.
Page 145: Crankcase Heater Mounting
14. Before moving the compressor into its final location, in- stall the mounting grommets on the compressor. 15. Carefully move the compressor into place on the unit. All compressors must be lifted by the lifting rings. Use care and extreme caution when lifting and moving com- pressors.
Page 146 Fig. 173 — Copeland ZP236,296 Crankcase 38APD115 Heater Location SSN 1714Q Fig. 171 Fig. 173 PSN 1714Q Fig. 171 Fig. 174 38APD115 SSN 1714Q Fig. 171 Fig. 173 38APS025 — Fig. 170 — 38APS027 — Fig. 171 — 38APS030 — Fig. 171 — 1.57-1.97 in.
Page 147: Oil Charge
Puron systems use a polyolester (POE) oil. Use only Carrier Totaline ..... .3MAF POE P903-1601 ®...
Page 148 SUCTION RGT B SPT B SCHRADER B SPT A RGT A SUCTION SCHRADER A HPS A DPT A OIL EQUALIZER LINE HPS B DPT B DTT A a38-7323 OIL EQUALIZER LINE OIL SIGHT LEGEND GLASS DPT — Discharge Pressure Transducer —...
Page 149: Control Module Service
Control Module Service avoid electrostatic discharge. LOSS OF COMMUNICATION — Loss of communication 4. Package the defective module in the carton of the new issues can be found on the Carrier Comfort Network ® (CCN) module for return to Carrier.
Page 150: Condenser Fans
CONDENSER FAN MOTOR PROTECTION — Each con- AEROACOUSTIC (LOW SOUND) FANS — Two ™ denser fan motor is internally protected against overtempera- signs have been used for this option and can be distinguished ture. They are also protected against a severe overcurrent con- by the mounting bolt color.
Page 151 TORQUE BOLTS 15 ± 2 ft-lb (20 ± 2.6 N-m) FAN CAP FAN DECK 7.00 in. (178 mm) MIN. A38-7338 Fig. 178 — Aeroacoustic Fan (Gray Bolt) Mounted Position a38-7326 a38-7327 Fig. 179 — Aeroacoustic Fan (Black Bolt) Fan Hub Keyway Fig.
Page 152: Filter Drier
TROUBLESHOOTING — The drive is programmed to re- This is a required field supplied and in- Filter Drier — start automatically after a fault and will attempt to restart three stalled device. Replace whenever the moisture/liquid indicator times after most faults (the drive will not restart after CF, cF, shows moisture in the system.
Page 153 ® Table 71 — Motormaster V Troubleshooting Parameters PARAMETER DESCRIPTION COMMENTS Fault History This parameter lists the last 8 faults that tripped the drive. Use the up and down arrow buttons to scroll through the faults. The left hand digit of the display is the fault number.
Page 154: Pressure Transducers
® Table 72 — Motormaster V Fault Codes FAULT CODE DESCRIPTION SOLUTION High Temperature Fault: Ambient temperature is too Check cooling fan operation. high; cooling fan has failed (if equipped). Control Fault: A blank EPM or an EPM with corrupted Perform a factory reset using Parameter P48 - PRO- data has been installed.
Page 155: Temperature Relief Devices
Use caution when removing the transducer. Use a back-up wrench to secure the fitting while removing and installing the pressure transducer. Be sure to loop cable and secure with a wire tie to create a strain relief as shown in Fig. 48 on page 40. WARNING Care should be exercised while removing any device, pres- sure sensing device or cap from an access fitting.
Page 156 TROUBLESHOOTING — To perform a thermistor-tempera- Outdoor Air Thermistor (OAT) — This thermistor for ture sensor check, a high quality digital volt-ohmmeter is re- 38APD/APS025-060 units is mounted close to the base of the quired. unit. It must be mounted off the base rail for an accurate out- door ambient temperature.
Page 157 Table 73 — 5K Thermistor Temperatures (°F) vs. Resistance/Voltage Drop VOLTAGE VOLTAGE VOLTAGE TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE DROP DROP DROP (OHMS) (OHMS) (OHMS) 1.982 7,686 0.511 1,190 –25 3.699 98,010 1.956 7,665 0.502 1,165 –24 3.689 94,707 1.930 7,468 0.494 1,141...
Page 158 Table 74 — 5K Thermistor Temperatures (°C) vs. Resistance/Voltage Drop VOLTAGE VOLTAGE VOLTAGE TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE DROP DROP DROP (OHMS) (OHMS) (OHMS) 1.982 7,855 0.506 1,158 –32 3.705 100,260 1.935 7,499 0.490 1,118 –31 3.687 94,165 1.889 7,161 0.475 1,079...
Page 159 Table 75 — 10K Thermistor Temperature (°F) vs. Resistance/Voltage Drop VOLTAGE VOLTAGE VOLTAGE TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE DROP DROP DROP (OHMS) (OHMS) (OHMS) –25 4.758 196,453 2.994 14,925 0.890 2,166 –24 4.750 189,692 2.963 14,549 0.876 2,124 –23 4.741 183,300 2.932...
Page 160 Table 76 — 10K Thermistor Temperature (°C) vs. Resistance/Voltage Drop VOLTAGE VOLTAGE VOLTAGE TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE DROP DROP DROP (OHMS) (OHMS) (OHMS) –32 4.762 200,510 3.056 15,714 0.940 2,315 –31 4.748 188,340 3.000 15,000 0.913 2,235 –30 4.733 177,000 2.944...
Page 161: Maintenance
(Run Status PM COIL C.L.MN), by toggling the value MAINTENANCE from NO to YES. The fol- Recommended Maintenance Schedule — 1. Remove any foreign objects or debris attached to the core lowing are recommended guidelines only. Jobsite conditions face or trapped within the mounting frame and brackets. may dictate that maintenance schedule be performed more of- 2.
Page 162: Troubleshooting
RESETTING ALARMS — Before resetting any alarm, first TROUBLESHOOTING determine the cause of the alarm and correct it. After determin- Table 78 is an abbreviated list of symptoms, probable ing and correcting the cause of the alarm, toggle causes, and potential remedies. Alarms RCRN (Reset All Current Alarms) from NO to YES.
Page 163 Table 79 —Alarm and Alert Codes ALARM/ ALARM OR ACTION TAKEN RESET DETAILS PAGE DESCRIPTION ALERT CODE ALERT BY CONTROL METHOD REFERENCE If communications between the scrolling marquee and the Main Base Board (MBB) are lost, unit may continue to run. If the Automatic once commun- COMM FAIL Alert...
Page 164 Table 79 —Alarm and Alert Codes (cont) EXPLANATION ALARM/ ALARM OR ACTION TAKEN RESET DESCRIPTION PAGE ALERT CODE ALERT BY CONTROL METHOD REFERENCE Circuit A Suction Pressure T092 Alert Circuit is shut down Automatic Transducer Failure Circuit B Suction Pressure T093 Alert Circuit is shut down...
Page 165 Table 79 —Alarm and Alert Codes (cont) ALARM/ ALARM OR ACTION TAKEN RESET DETAILS PAGE DESCRIPTION ALERT CODE ALERT BY CONTROL METHOD REFERENCE Illegal Configuration - AUX Board Incorrect Revision Illegal Configuration - AUX Board Soft- ware Rev Must be 3 or Higher Illegal Configuration - AUX Board should be AUX1, Not AUX2 Illegal Configuration - Control Type...
Page 166 ALARM AND ALERT DETAILS Possible Causes: If this condition is encountered, check the following items: COMM FAIL — Communication Failure • Check for a welded compressor contactor. Criteria for Trip: This alarm is generated any time the LEN • Check for a faulty Current Sensing Board. (Local Equipment Network) communication is lost.
Page 167 that is shipped with the compressor, but not installed. with the Control Mode, Run Status VIEW STAT=9 (SPT The 115-volt module must be removed and replaced with Satisfied) and Space Temp Control Mode, Run Status the 24-volt module shipped with the compressor. Failure VIEW SPT.M=0 (Cool Off).
Page 168 Possible Causes: If this condition is encountered, check the average or the lowest suction pressure readings over the period following items: of time. This has the tendency to artificially increase the • Check the wiring for the discharge temperature thermis- reported superheat, since the lowest suction pressure (saturated tor (DTT).
Page 169 At least one compressor in the circuit must be ON and one of • Check the operation of the liquid line solenoid valves, if the following conditions must be true: equipped. Be sure that the correct valve operates for the circuit.
Page 170 • Check to be sure that the long line check valve assembly calculations. These are shown graphically in Fig. 187 and is mounted correctly. The arrows indicate direction of 188. flow. a. If circuit saturated suction temperature is greater • Check the Discharge Pressure Transducer for accuracy. than or equal to –20.0 F (–28.9 C) but less than P122 - Circuit A High Pressure Trip Pre-Alert –10.0 F (–23.3 C) and circuit saturated condensing...
Page 171 a38-7400 Fig. 187 — Maximum Saturated Condensing Temperature ( °F) a38-7401 Fig. 188 — Maximum Saturated Condensing Temperature ( °C) A140 — Reverse Rotation Detected The example below lists sample suction pressures of a starting circuit. Figures 189 and 190 show reverse rotation detection Criteria for Trip: The alarm criterion is checked when the first for this example.
Page 172 a38-7402 Fig. 189 — Reverse Rotation Detection (psig) a38-7403 Fig. 190 — Reverse Rotation Detection (kPa)
Page 173 MUST BE 3 OR HIGHER The -03 indicates Revision 03. Check the part number of the AUX Board. It should have the Carrier Part Number 32GB500442EE (UTEC Part Number CEPL130567-03). This board is required for the digital AUX BOARD SHOULD BE AUX1, NOT AUX2 compressor output as well as the Motormaster drive signal.
Page 174 A152 — Unit Down Due to Failure T170 — Loss of Communication with the Compressor Expansion Module Criteria for Trip: This alarm is generated if both circuits are off due to alerts and/or alarms. Criteria for Trip: This alert is generated when the Main Base Board (MBB) cannot establish communication with the Com- Action To Be Taken: The unit is not allowed to start.
Page 175 A175 — Loss of Communication with AUX board • Check airflow switch circuit wiring. • If no airflow switch is used, confirm the jumper is in Criteria for Trip: A communication problem with the AUX place between LVT-16 and LVT-18. Board has been detected by the Main Base Board.
Page 176 APPENDIX A — DISPLAY TABLES Scrolling Marquee Display Menu Structure MENU ITEM VIEW (Auto Display) RUN (Unit Run Hours and Start) HOUR (Circ and Comp Run Hours) RUN STATUS STRT (Compressor Starts) PM (Preventative Maintenance) VERS (Software Version Numbers) TEST (Service Test Mode) OUTS (Outputs) SERVICE TEST CMPA (Circuit A Compressor Test)
Page 177 APPENDIX A — DISPLAY TABLES (cont) Run Status Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT AUTO VIEW OF RUN STATUS XXX.X °F (°C) Return Air Temperature XXX.X °F (°C) Supply Air Temperature SETP XXX.X °F (°C) Active Set Point CTPT XXX.X °F (°C) Control Point...
Page 178 APPENDIX A — DISPLAY TABLES (cont) Run Status Mode and Sub-Mode Directory (cont) SUB- SUB- SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT ITEM SUB-ITEM COMPRESSOR STARTS ST.A1 XXXX Compressor A1 Starts ST.A2 XXXX Compressor A2 Starts STRT ST.A3 XXXX Compressor A3 Starts ST.B1 XXXX Compressor B1 Starts...
Page 179 APPENDIX A — DISPLAY TABLES (cont) Temperatures Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT ENTERING AND LEAVING UNIT TEMPERATURES XXX.X °F (°C) Return Air Temperature See Note 1 UNIT XXX.X °F (°C) Supply Air Temperature See Note 1 XXX.X °F (°C) Outside Air Temperature See Note 1...
Page 180 APPENDIX A — DISPLAY TABLES (cont) Setpoints Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT COOLING SET POINTS Range: 40 to 80 F (4.4 to 26.7 C) CSP.1 XX.X °F (°C) Cooling Set Point 1 Default: 60 F (15.6 C) Range: 40 to 80 F (4.4 to 26.7 C) CSP.2 XX.X °F (°C)
Page 181 APPENDIX A — DISPLAY TABLES (cont) Inputs Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT GENERAL INPUTS STST STRT/STOP Start/Stop Switch ID.F.A ON/OFF Indoor Fan Status-CIRA ON/OFF Y1 Thermostat Input ON/OFF Y2 Thermostat Input GEN.I ID.F.B ON/OFF Indoor Fan Status-CIRB ON/OFF Y3 Thermostat Input ON/OFF...
Page 182 APPENDIX A — DISPLAY TABLES (cont) Configuration Mode and Sub-Mode Directory DISPLAY COMMENT SUB-MODE ITEM METR=OFF ITEM DESCRIPTION METR=OFF (METR=ON) (METR=ON) DISPLAY CONFIGURATION TEST ON/OFF Test Display LEDs Default: OFF METR ON/OFF Metric Display Default: OFF Range: 0 to 3 0 = English 1 = Espanol DISP...
Page 183 APPENDIX A — DISPLAY TABLES (cont) Configuration Mode and Sub-Mode Directory (cont) SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT UNIT OPTIONS 1 HARDWARE Default: YES = Factory Equipped MLV.S YES/NO Minimum Load Valve Select NO = Not Equipped CSB.E ENBL/DSBL CSB Boards Enable Default: ENBL SPT.S ENBL/DSBL...
Page 184 APPENDIX A — DISPLAY TABLES (cont) Configuration Mode and Sub-Mode Directory (cont) SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT MOTORMASTER Default: MMR.S YES/NO Motormaster Select YES = Factory Equipped NO = Not Equipped Range: –20 to 20 P.GAN Head Pressure P Gain Default: 1.0 M.MST Range: –20 to 20...
Page 185 25 TONS 25 TONS 38APD130 (14 tons) (14 tons) (14 tons) (23 tons) (23 tons) (23 tons) 12 TONS 12 TONS 38APS025 (11 tons) (11 tons) 13 TONS 13 TONS 38APS027 (12 tons) (12 tons) 15 TONS 15 TONS 38APS030...
Page 186 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT TIME OF DAY TIME 24-Hour Format HH.MM XX.XX Hour and Minute Range 00:00 - 23:59 MONTH, DATE, DAY, AND YEAR Range: 1 to 12 MNTH Month of Year 1 - 12 (1 = January,...
Page 187 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT HOLIDAY SCHEDULE 03 Range: 0 to 12 0 = No Holiday Holiday Start Month 1 = January 2 = February, etc. Default: 0 HD.03 Range: 0 to 31...
Page 188 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT HOLIDAY SCHEDULE 09 Range: 0 to 12 0 = No Holiday Holiday Start Month 1 = January 2 = February, etc. Default: 0 HD.09 Range: 0 to 31...
Page 189 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT HOLIDAY SCHEDULE 15 Range: 0 to 12 0 = No Holiday Holiday Start Month 1 = January 2 = February, etc. Default: 0 HD.15 Range: 0 to 31...
Page 190 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT HOLIDAY SCHEDULE 20 Range: 0 to 12 0 = No Holiday Holiday Start Month 1 = January 2 = February, etc. Default: 0 HD.20 Range: 0 to 31...
Page 191 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT HOLIDAY SCHEDULE 26 Range: 0 to 12 0 = No Holiday Holiday Start Month 1 = January 2 = February, etc. Default: 0 HD.26 Range: 0 to 31...
Page 192 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE SUB-SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT Range: 0 to 99 0=No Schedule SCH.N Schedule Number 1 to 64=Local Schedule 65 to 99=CCN Global Schedule Default: 0 LOCAL OCCUPANCY SCHEDULE OCCUPANCY PERIOD 1 24-Hour Format...
Page 193 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE SUB-SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT OCCUPANCY PERIOD 5 24-Hour Format OCC.5 XX.XX Period Occupied Time Range: 00.00 to 23.59 Default: 00.00 24-Hour Format UNC.5 XX.XX Period Unoccupied Time Range: 00.00 to 23.59 Default: 00.00...
Page 194 APPENDIX A — DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory (cont) SUB-MODE SUB-SUB-MODE ITEM DISPLAY ITEM DESCRIPTION COMMENT SCHEDULE OVERRIDE Range: 0 to 4 OVR.T X hrs Timed Override Hours Default: 0 Range: 0 to 4 OVR.L X hrs Override Time Limit Default: 0 SPT.O...
Page 195 APPENDIX B — CCN TABLES Status Tables A_UNIT (General Unit Parameters) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS 0 = SERVICE 1 = OFF Local 2 = OFF CCN 3 = OFF Time Control Mode 4 = Emergency STAT Read Only 5 = ON Local 6 = ON CCN 7 = ON Time...
Page 196 APPENDIX B — CCN TABLES (cont) Status Tables (cont) CIRCADIO (Circuit A Discrete Inputs/Outputs) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS CIRC.A DISCRETE OUTPUTS Compressor A1 Relay OFF/ON K_A1_RLY Read Only Comp A1 Load Percent NNN.n DIGITAL% Read Only Compressor A2 Relay OFF/ON K_A2_RLY Read Only...
Page 197 APPENDIX B — CCN TABLES (cont) Status Tables (cont) OPTIONS (Unit Parameters) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS FANS Fan Stage Circuit A FANSTGEA Read Only Fan Stage Circuit B FANSTGEB Read Only Fan 1 Relay OFF/ON FAN_1 Read Only Fan 2 Relay OFF/ON FAN_2...
Page 198 APPENDIX B — CCN TABLES (cont) Maintenance Tables ALARMS (Active Alarms) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS Active Alarm #1 ALARM01C Read Only Active Alarm #2 ALARM02C Read Only Active Alarm #3 ALARM03C Read Only Active Alarm #4 ALARM04C Read Only Active Alarm #5 ALARM05C...
Page 199 APPENDIX B — CCN TABLES (cont) Maintenance Tables (cont) LEARNFNS NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS SCT Delta for Comp A1 NNN.N F ( C) A1SCTDT Read Only SCT Delta for Comp A2 NNN.N F ( C) A2SCTDT Read Only SCT Delta for Comp B1 NNN.N F ( C)
Page 200 APPENDIX B — CCN TABLES (cont) Maintenance Tables (cont) RUNTEST NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS Percent Total Capacity CAPA_T Read Only Percent Available Cap. CAPA_A Read Only Discharge Pressure NNN.n psig (kPa) DP_A Read Only Suction Pressure NNN.n psig (kPa) SP_A Read Only...
Page 201 APPENDIX B — CCN TABLES (cont) Maintenance Tables (cont) STRTHOUR (Starts and Run Hours) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS Machine Operating Hours NNNNNN hours HR_MACH Read Only Machine Starts NNNNNN CY_MACH Read Only Circuit A Run Hours NNNNNN hours HR_CIRA Read Only...
Page 202 APPENDIX B — CCN TABLES (cont) Maintenance Tables (cont) OCCDEFM/OCCPC01S NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS Range: Current Mode (1=Occup.) MODE Read Only 0 = Unoccupied 1 = Occupied Current Occup. Period # PER-NO Read Only Range: 0 to 8 Timed-Override in Effect No/Yes OVERLAST...
Page 203 APPENDIX B — CCN TABLES (cont) Configuration Tables (cont) HPB (Head Pressure Circuit B) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS SCT Delta for Comp B1 NNN.n F ( C) B1SCTDT Configuration SCT Delta for Comp B2 NNN.n F ( C) B2SCTDT Configuration OPTIONS1 (Options 1 Configuration)
Page 204 APPENDIX B — CCN TABLES (cont) Configuration Tables (cont) OPTIONS2 (Options 2 Configuration) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS Range: 1 = VAV 2 = Invalid 3 = Tstat Multi 4 = Tstat 2 Stg Machine Control Type CTRLTYPE Configuration 5 = SPT Multi 6 = Invalid...
Page 205 APPENDIX B — CCN TABLES (cont) Configuration Tables (cont) RESTCON (Temperature Reset and Demand Limit) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS COOLING RESET Range: 0 = No Reset 1 = 4-20 mA Input Cooling Reset Type CRST_TYP Configuration 2 = Out Air Temp 3 = Not Supported 4 = Space Temp Default: 0...
Page 206 APPENDIX B — CCN TABLES (cont) Configuration Tables (cont) SCHEDOVR (Timed Override Set Up) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS Range: 0 to 99 Schedule Number 0 = No Schedule SCHEDNUM Read/Write 1 to 64 = Local Schedule 65 to 99 = CCN Global Schedule Override Time Limit Range: 0 to 4 hours...
Page 207 APPENDIX B — CCN TABLES (cont) ALARMDEF/ALARMS01 (Alarm Configuration) NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS NNNNNNNN Range: Alarm Routing Control ALRM_CNT Read/Write 00000000 to 11111111 Default: 00000000 Equipment Priority Range: 0 to 7 EQP_TYPE Read/Write Default: 4 Comm Failure Retry Time Range: 1 to 240 RETRY_TM Read/Write...
Page 208 APPENDIX B — CCN TABLES (cont) Service Table SERVICE NETWORK DESCRIPTION VALUE UNITS POINT NAME ACCESS COMPRESSOR ENABLE Enable Compressor A1 ENABLEA1 Read/Write Enable Compressor A2 ENABLEA2 Read/Write Default: Depends on Unit Enable Compressor A3 ENABLEA3 Read/Write Model. If Compressor Size is greater than 0, value is Enable Compressor B1 ENABLEB1...
Page 209 APPENDIX B — CCN TABLES (cont) Time Schedule Tables OCCPC01S a38-7335...
Page 210 APPENDIX C — BACNET COMMUNICATION OPTION The following section is used to configure the UPC Open con- troller which is used when the BACnet* communication option is selected. The UPC Open controller is mounted in the 10's main control box per unit components arrangement diagrams. TO ADDRESS THE UPC OPEN CONTROLLER —...
Page 211 The example in Fig. C shows the BAS Port DIP Switches due to echoing. See Fig. A, D, and E. set for 76.8k (Carrier default) and MS/TP. To wire the UPC Open controller to the BAS network: Set the BAS Port DIP Switches DS2 and DS1 for the appro- 1.
Page 212 NOTE: The BT485 terminator has no polarity associated with user is concerned about abrasion. The Halar jacket is also less likely to crack in extremely low temperatures. To order a BT485 terminator, contact your Carrier represen- NOTE: Use the specified type of wire and cable for maximum tative.
Page 213 APPENDIX C — BACNET COMMUNICATION OPTION (cont) Table D — Open System Wiring Specifications and Recommended Vendors WIRING SPECIFICATIONS RECOMMENDED VENDORS AND PART NUMBERS CONNECT AIR CONTRACTORS WIRE TYPE DESCRIPTION BELDEN RMCORP INTERNATIONAL WIRE AND CABLE 22 AWG, single twisted shielded pair, low capacitance, CL2P, TC foam FEP, plenum rated.
Page 214 TROUBLESHOOTING — If there are problems wiring or addressing the UPC Open controller, contact your Carrier rep- To determine when to replace the battery, measure the volt- resentative.
Page 215 APPENDIX C — BACNET COMMUNICATION OPTION (cont) Table G — Network Points List READ/ UNITS DEFAULT BACNET BACNET POINT DESCRIPTION CCN POINT NAME RANGE WRITE VALUE OBJECT ID OBJECT NAME 4-20 Cooling Demand COOL_MA 0-20 AV:6 cool_ma_1 4-20 mA Demand Signal LMT_MA 0-20 AV:36...
Page 216 APPENDIX C — BACNET COMMUNICATION OPTION (cont) Table G — Network Points List (cont) CCN POINT READ/ UNITS DEFAULT BACNET BACNET POINT DESCRIPTION RANGE NAME WRITE VALUE OBJECT ID OBJECT NAME Cooling Demand Level AV:9006 cool_demand_level_1 Cooling Ramp Loading CRAMP °F 0.2-2.0 AV:56...
Page 217 APPENDIX C — BACNET COMMUNICATION OPTION (cont) Table G — Network Points List (cont) READ/ UNITS DEFAULT BACNET BACNET POINT DESCRIPTION POINT NAME RANGE WRITE VALUE OBJECT ID OBJECT NAME 1 = VAV 2 = Invalid 3 = Tstat Multi MSV Point for i-Vu / 4 = Tstat 2 Stg BACnet based on...
Page 218 APPENDIX C — BACNET COMMUNICATION OPTION (cont) Table G — Network Points List (cont) READ/ DEFAULT BACNET BACNET POINT DESCRIPTION POINT NAME UNITS RANGE WRITE VALUE OBJECT ID OBJECT NAME Temperature Reset MODE_14 ON_OFF BV:40 mode_14_1 Time Guard Active MODE_TG ON_OFF BV:67 mode_tg_1...
Page 219 APPENDIX D — PIPING AND INSTRUMENTATION DIAGRAMS NOTE: Discharge check valve located inside each compressor. a38-7339 Fig. G — 38APD025-030 Piping and Instrumentation...
Page 220 APPENDIX D — PIPING AND INSTRUMENTATION DIAGRAMS (cont) a38-7340 NOTE: Discharge check valve located inside each compressor. Fig. H — 38APD040-060 Piping and Instrumentation...
Page 221 APPENDIX D — PIPING AND INSTRUMENTATION DIAGRAMS (cont) a38-7341 NOTE: Discharge check valve located inside each compressor. Fig. I — 38APD070,080 Piping and Instrumentation...
Page 222 APPENDIX D — PIPING AND INSTRUMENTATION DIAGRAMS (cont) a38-7342 NOTE: Discharge check valve located inside each compressor. Fig. J — 38APD090-130 Piping and Instrumentation...
Page 223 APPENDIX D — PIPING AND INSTRUMENTATION DIAGRAMS (cont) a38-7343 NOTE: Discharge check valve located inside each compressor. Fig. K — 38APS025-030 Piping and Instrumentation NOTE: Discharge check valve located a30-7344 inside each compressor. Fig. L — 38APS040-050 Piping and Instrumentation...
Page 224 APPENDIX D — PIPING AND INSTRUMENTATION DIAGRAMS (cont) a38-7345 NOTE: Discharge check valve located inside each compressor. Fig. M — 38APS065 Piping and Instrumentation...
Page 225 APPENDIX E — CONTROL METHODS WITH INPUTS FOR CONTROL MODE COMPARISON ENABLE- INDOOR FAN OFF- OCCUPANCY CHIL_S_S EMSTOP SATISFIED CTRL DESCRIPTION STATUS ALARM STAT REMOTE SCHEDULE VALUE VALUE (C.TYP=3 SWITCH SWITCH OR 5) Enable Closed 5 (ON LOCAL) Enable Closed 9 (SPT SATISFIED) Enable Enable...
Page 226 APPENDIX E — CONTROL METHODS WITH INPUTS FOR CONTROL MODE COMPARISON (cont) ENABLE- INDOOR OFF- OCCUPANCY CHIL_S_S EMSTOP SATISFIED CTRL DESCRIPTION ALARM STAT REMOTE SCHEDULE VALUE VALUE STATUS (C.TYP=3 SWITCH SWITCH OR 5) Enable Closed 6 (ON CCN) Enable Closed 9 (SPT SATISFIED) Start Enable...
Page 227 Digital oil recover mode (D.OIL), OAT below lockout temp mode C.TYP=8 (DUAL TSTAT), Discharge Temperature thermistor (L.OUT), C.TYP=9 (VAV SETPOINT), (DTT), Occupancy schedule Carrier Comfort Network (CCN), Mounting, CCN global, Tables, Door hinges, lubricating, Holidays, Wiring, Emergency On/Off switch, Local schedule,...
Page 228 38APD115,130 Circuit A, Battery, testing and replacing, 38APD115,130 Circuit B, Configuring, 38APS025,027,030, LEDs, 38APS040,050, Local access, 38APS065, Wiring, CCN, Wiring, Carrier Comfort Network OAT, (CCN), Service, Wiring schematics, control Service test, 38APD025-060, Sizes, unit, 38APD070-130, Slow change override mode 38APS025-050,...
Page 229 START-UP CHECKLIST FOR 38AP SPLIT SYSTEM CONDENSING UNIT (Remove and use for Job File) I. Project Information JOB NAME ______________________________________________________________________________ ADDRESS _______________________________________________________________________________ CITY __________________________________________ PROVINCE/STATE ________ ZIP______________ INSTALLING CONTRACTOR ________________________________________________________________ SALES OFFICE ___________________________________________________________________________ START-UP PERFORMED BY ________________________________________________________________ DESIGN INFORMATION SYSTEM INFORMATION EVAPORATOR COIL OUTDOOR AIR SUPPLY AIR...
Page 230 AIR-HANDLING UNIT(S): MARK FOR: _______________________________ _______________________________________ MANUFACTURER __________________________ _______________________________________ UNIT MODEL ______________________________ _______________________________________ SERIAL _________________________________ ________________________________________ II. PRELIMINARY EQUIPMENT CHECK A. CONDENSING UNIT 1. IS THERE ANY PHYSICAL DAMAGE? DESCRIPTION _______________________________________________________________________________________ ______________________________________________________________________________________________________ WILL THIS DAMAGE PREVENT START-UP? 2. UNIT IS INSTALLED LEVEL AS PER THE INSTALLATION INSTRUCTIONS. 3.
Page 231 B. AIR-HANDLING UNIT 1. ALL SERVICE VALVES OPEN. 2. ALL PIPING IS PROPERLY CONNECTED. 3. ONLY BLEED PORT TXVS ARE INSTALLED. CIRCUIT A CIRCUIT B PART NUMBER PART NUMBER 4. TXVS ARE PROPERLY INSTALLED, EQUALIZER LINES PROPERLY LOCATED, BULBS PROPERLY LOCATED AND INSULATED. 5.
Page 232 C. REFRIGERATION CIRCUIT (cont) 5. ADDITIONAL OIL ADDED TO THE CIRCUITS, IF REQUIRED. CIRCUIT A ________________________________________ CIRCUIT B ________________________________________ 6. OIL IS VISIBLE IN THE COMPRESSOR SIGHTGLASSES, AT LEAST FULL, AFTER CRANKCASE HAS BEEN ENERGIZED FOR A MINIMUM OF 24 HOURS 7.
Page 233 III. SYSTEM START-UP (to be completed by the start-up technician) A. PRE-START CHECK 1. ALL SERVICE VALVES OPEN. 2. COMPRESSOR OIL LEVEL IS CORRECT. 3. VERIFY COMPRESSOR MOUNTING BOLT TORQUE IS 10 TO 14 ft-lbs (13.5 TO 18.9 N-m) 4. LOCATE, REPAIR, AND REPORT ANY LEAKS. _______________________________________________ ________________________________________________________________________________________ 5.
Page 234 B. START AND OPERATE THE SYSTEM. Complete the following: 1. COMPLETE COMPONENT TEST. 2. CHECK REFRIGERANT AND OIL CHARGE. 3. TRIM REFRIGERANT PER CHARGING CHART. CIRCUIT A FINAL REFRIGERANT CHARGE CIRCUIT B FINAL REFRIGERANT CHARGE PRELIMINARY CHARGE PRELIMINARY CHARGE TRIM CHARGE TRIM CHARGE TOTAL CHARGE TOTAL CHARGE...
Page 235 B. START AND OPERATE THE SYSTEM (cont): 6. RECORD CONFIGURATION MODE SETTINGS. SUBMODE ITEM ITEM DESCRIPTION VALUE DISPLAY CONFIGURATION TEST Test Display LEDs METR Metric Display DISP LANG Language Selection PAS.E Password Enable PASS Service Password UNIT CONFIGURATION SIZE Unit Size NCKT Number of Refrig Ckts SZ.A1...
Page 236 6. RECORD CONFIGURATION MODE SETTINGS (cont) SUBMODE ITEM ITEM DESCRIPTION VALUE UNIT OPTIONS 1 HARDWARE MLV.S Minimum Load Valve Select CSB.E CSB Boards Enable SPT.S Space Temp Sensor OPT1 SP.O.S Space Temp Offset Enable SP.O.R Space Temp Offset Range RAT.T RAT Thermistor Type SAT.T SAT Thermistor Type...
Page 237 6. RECORD CONFIGURATION MODE SETTINGS (cont) SUBMODE ITEM ITEM DESCRIPTION VALUE RESET COOL TEMP CRST Cooling Reset Type MA.DG 4-20 — Degrees Reset RM.NO Remote - No Reset Temp RM.F Remote - Full Reset Temp RM.DG Remote - Degrees Reset RT.NO Return - No Reset Temp RT.F...
Page 238 6. RECORD CONFIGURATION MODE SETTINGS (cont) SUBMODE ITEM ITEM DESCRIPTION VALUE SERVICE CONFIGURATION EN.A1 Enable Compressor A1 EN.A2 Enable Compressor A2 EN.A3 Enable Compressor A3 SERV EN.B1 Enable Compressor B1 EN.B2 Enable Compressor B2 EN.B3 Enable Compressor B3 REV.R Reverse Rotation Enable TCOM Two Comp Ckt Oil Mgmt BROADCAST CONFIGURATION...
Page 239 7. RECORD SETPOINTS MODE SETTINGS SUBMODE ITEM ITEM DESCRIPTION VALUE COOLING SET POINTS CSP.1 Cooling Setpoint 1 CSP.2 Cooling Setpoint 2 SPS.P Space T Cool Setpoint SPT.O Space Temperature Offset COOL ST.P.O Space T SP Plus Offset P.CAP Percent Cap. Requested L.C.ON Lo Cool On Setpoint H.C.ON...
Page 240 8. RECORD OPERATING TEMPERATURES AND PRESSURES WHEN STABLE OPERATION HAS BEEN CONFIRMED. UNIT DATA CONTROL POINT (Run Status VIEW CTPT) TOTAL CAPACITY (Run Status VIEW CAP) RETURN AIR TEMPERATURE (Temperature UNIT RAT)* SUPPLY AIR TEMPERATURE (Temperature UNIT SAT)* OUTSIDE AIR TEMPERATURE (Temperature UNIT OAT) SPACE TEMPERATURE (Temperature UNIT SPT) CIRCUIT A DATA SATURATED CONDENSING TEMP (Temperature CIR.A SCT.A)
Page 241 9. PROVIDE OPERATING INSTRUCTIONS TO OWNER’S PERSONNEL. INSTRUCTION TIME _____ HOURS 10. AFTER 20 MINUTES OF OPERATION, OIL LEVEL IS CORRECT IN SIGHTGLASS. 11. RECORD OIL LEVELS BELOW. COMPRESSORS MUST BE OFF. COMP A1 COMP A2 COMP A3 COMP B1 COMP B2 COMP B3 a38-7404...
Page 242 ADDRESS _________________________________ __________________________________________ CITY, STATE/PROVINCE: __________________________________________ DATE _____________________________________ © Carrier Corporation 2015 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53380010-01 Printed in U.S.A. Form 38AP-2T...

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