Carrier 50LCH Series Start-Up Instructions
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Carrier 50LCH Series Start-Up Instructions

Carrier 50LCH Series Start-Up Instructions

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Installation, Controls, and Start-up
IMPORTANT: Read the entire instruction manual before start-
ing the installation.
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . 11
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . 11
Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . 12
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
Step 5 - Field Fabricate Ductwork . . . . . . . . . . . . . 14
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . . . 14
Step 8 - Relocate SAT Sensor . . . . . . . . . . . . . . . . 16
Step 9 - Install Outside Air Hood . . . . . . . . . . . . . . 17
Trap and Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500316-01
Electric Cooling Packaged High Outdoor Air System
Instructions
Printed in U.S.A.
Form No. 50LCH-7-12-01SI
with Puron
Page
Step 13 - Install Accessories . . . . . . . . . . . . . . . . .31
Startup Checklist . . . . . . . . . . . . . . . . . . . . . . . . . .31
CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Main Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Control Quick Setup . . . . . . . . . . . . . . . . . . . . . . . . .40
WeatherExpert
50LC*H 07-12
®
(R-410A) Refrigerant
Pg 1
4-24
®
Replaces: NEW

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  • Page 1: Table Of Contents

    ® WeatherExpert 50LC*H 07-12 Electric Cooling Packaged High Outdoor Air System with Puron ® (R-410A) Refrigerant Installation, Controls, and Start-up Instructions • UNITS WITHOUT FACTORY-INSTALLED NON- FUSED DISCONNECT OR HACR IMPORTANT: Read the entire instruction manual before start- • UNITS WITH FACTORY-INSTALLED NON-FUSED ing the installation.

  • Page 2: Safety Considerations

    • STEP 9 — CONFIGURE THE COOLING SYSTEM It is important to recognize safety information. This is the • STEP 10 — CONFIGURE THE DEHUMIDIFICATION safety-alert symbol . When you see this symbol on the unit and SYSTEM in instructions or manuals, be alert to the potential for personal •...

  • Page 3: General

    GENERAL Table 1 — Application Ranges Overview 50LCH UNIT SIZE DESCRIPTION APPLICATION RANGE Table 1 lists the typical application ranges for the equipment cov- Min. Airflow 1300 ered in this document. This document contains guidance for the Min. Full Load Airflow 1050 1400 mechanical and basic electrical installation for the 50LC*H pack-...
  • Page 4 Fig. 2 — Unit Dimensional Drawing, Size 07, Single-Zone Electric Cooling with Electric Heat...
  • Page 5 Fig. 2 — Unit Dimensional Drawing, Size 07, Single-Zone Electric Cooling with Electric Heat (cont)
  • Page 6 Fig. 2 — Unit Dimensional Drawing, Size 07, Single-Zone Electric Cooling with Electric Heat (cont)
  • Page 7 Fig. 3 — Unit Dimensional Drawing, Sizes 08-12, Single-Zone Electric Cooling with Electric Heat...
  • Page 8 Fig. 3 — Unit Dimensional Drawing, Sizes 08-12, Single-Zone Electric Cooling with Electric Heat (cont)
  • Page 9 Fig. 3 — Unit Dimensional Drawing, Sizes 08-12, Single-Zone Electric Cooling with Electric Heat (cont)
  • Page 10 Fig. 3 — Unit Dimensional Drawing, Sizes 08-12, Single-zone Electric Cooling with Electric Heat (cont)

  • Page 11: Installation

    TYPICAL CURB-MOUNTED INSTALLATION INSTALLATION (VERTICAL SUPPLY/RETURN) Jobsite Survey Inspect unit. Complete the following checks before installation. Install curb. Consult local building codes and the NEC (National Elec- Install field-fabricated ductwork inside curb. trical Code) ANSI/NFPA 70 for special installation Install supply air temperature sensor. requirements.

  • Page 12: Step 4 - Provide Unit Support

    Step 4 — Provide Unit Support IMPORTANT: If the unit’s electric and control wiring is to be ROOF CURB MOUNT routed through the basepan and the unit is equipped with the Accessory roof curb details and dimensions are shown in Fig. 5. factory-installed thru-the-base service option, see the following Assemble and install accessory roof curb in accordance with in- section:...
  • Page 13 THIRD ANGLE DIMENSIONS ARE IN INCHES PROJECTION TOLERANCES ON: THIS DOCUMENT AND THE INFORMATION CONTAINED THEREIN IS PROPRIETARY TO CARRIER CORPORATION AND SHALL NOT 1 DEC 2 DEC 3 DEC BE USED OR DISCLOSED TO OTHERS, IN WHOLE OR IN PART, MATERIAL WITHOUT THE WRITTEN AUTHORIZATION OF CARRIER CORPORATION.

  • Page 14: Step 5 - Field Fabricate Ductwork

    Step 5 — Field Fabricate Ductwork Cabinet return-air static pressure (a negative condition) shall not CAUTION exceed 0.35 in. wg (87 Pa) with economizer or 0.45 in. wg (112 Pa) without economizer. PROPERTY DAMAGE HAZARD For vertical ducted applications, secure all ducts to roof curb and Failure to follow this caution may result in damage to roofing building structure.

  • Page 15: Positioning On Curb

    POSITIONING ON CURB HORIZONTAL TO VERTICAL SUPPLY CONVERSION (7.5 TO 10 TON UNITS) For full perimeter curbs CRRFCURB074A00 and CRRF- CURB075A00, the clearance between the roof curb and the front The accessory CRDUCTCV002A00 supply duct cover is required and rear base rails should be 1/4 in. (6.4 mm). The clearance be- to covert from vertical to horizontal supply.

  • Page 16: For All Converted Units

    FOR ALL CONVERTED UNITS Screws Ensure the covers are inserted into the notches on the base pan. The notches are covered by the tape used to secure the insulation to the basepan and are not easily seen. See Fig. 10 for position of the notches in the basepan.

  • Page 17: Step 9 - Install Outside Air Hood

    Remove Hood Parts Cut Plastic Ties (2 Places) Economizer Fig. 12 — SAT Sensor Install Locations Step 9 — Install Outside Air Hood ECONOMIZER HOOD REMOVAL SETUP Fig. 14 — Economizer Hood Package Location (FACTORY OPTION) ECONOMIZER HOOD ASSEMBLY The hood is shipped in knock-down form and located in the return NOTE: If the power exhaust accessory is to be installed on the air compartment.

  • Page 18: Step 10 - Install External Condensate

    Step 10 — Install External Condensate  Trap and Line The unit has one 3/4 in. condensate drain connection on the end of Panel the condensate pan and an alternate connection on the bottom. (See Fig. 18.) Unit airflow configuration does not determine which drain connection to use.

  • Page 19: Step 11 - Make Electrical Connections

    Step 11 — Make Electrical Connections WARNING ELECTRIC SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur.
  • Page 20 To TB4-5 PWR from OARH SARH To PL18-1 To TB4 - 7 To J1 8-1 RARH OARH To J1 8-2 To TB4-5 ERVWHEEL To SARH BYP_DAMP BLK BLK Heat Heat Alarm Enable Service Terminal To TB4-6 9 10 11 12 13 9 10 11 12 13 Block To TB4-5...
  • Page 21 To TB4-5 PWR from OARH SARH To PL18-1 To TB4 - 7 To J1 8-1 RARH OARH To J1 8-2 To TB4-5 ERVWHEEL To SARH BYP_DAMP BLK BLK Heat Heat Alarm Enable Service Terminal To TB4-6 Block 9 10 11 12 13 9 10 11 12 13 To TB4-5 MARH...
  • Page 22 Fig. 25 — 50LC*H 07 Power Wiring Diagram (208/230-v, 460-v, 575-v Units)
  • Page 23 Units Without Single Point Box, Disconnect or HACR Option Equip GR Lug Disconnect Ground (GR) 208/230-3-60 460-3-60 575-3-60 Units With Disconnect or HACR Option Fig. 26 — Mounting Position for Field Disconnects (over 100A) Optional Disconnect Switch Factory or HACR Wiring Ground (GR)

  • Page 24: All Units

    Refer to unit informative data plate for MOCP (Maximum Over- Operation on improper line voltage or excessive phase current Protection) device size. imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Carrier warranty. UNITS WITHOUT FACTORY-INSTALLED NON-FUSED Electric DISCONNECT OR HACR Disconnect...

  • Page 25: Units With Factory-Installed Non-Fused Disconnect Or Hacr

    UNITS WITH FACTORY-INSTALLED NON-FUSED DISCONNECT OR HACR The factory-installed option disconnect switch is located in a weatherproof enclosure located under the main control box (see Fig. 30 and 31). The manual switch handle is shipped in the dis- connect or HACR enclosure. Assemble the shaft and handle to the switch or HACR at this point.

  • Page 26: Convenience Outlets

    To field install the HACR shaft and handle: Remove the unit front panel (refer to Fig. 2 and 3). PWD-CO Remove 3 hex screws on the HACR enclosure (2 on the Fuse face of the cover and 1 on the bottom). Switch Remove the front cover of the HACR enclosure.
  • Page 27 WARNING ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death. Using unit-mounted convenience outlets: Units with unit- mounted convenience outlet circuits will often require that two disconnects be opened to de-energize all power to the unit. Treat all units as electrically energized until the convenience outlet power is also checked and de-energization is confirmed.

  • Page 28: Hacr Breaker (Option)

    HACR BREAKER (OPTION) Install the connector plate assembly to the basepan using 8 of the washer head screws. The amp rating of the HACR factory-installed option is based on the size, voltage, indoor motor, and other electrical options of the NOTE: If electrical connections are not going to occur at this time, unit as shipped from the factory.

  • Page 29: Unit Without Thru-Base Connection Kit

    UNIT WITHOUT THRU-BASE CONNECTION KIT Pass the control and communication control wires through the bushing on the unit end panel. Route the wire through the snap-in wire tie and up to the web bushing near the control box. Route the wire through the bushing and into the bottom left side of the con- trol box after removing one of the two knockouts in the corner of the box.
  • Page 30 Identify the total length between the unit and the pressure measur- ing location. For applications up to 100 ft, use 3/16 in. ID (inside Return Air dimensions) pneumatic tubing. For applications up to 200 ft, use Smoke Detector 1/4 in. ID pneumatic tubing. Connect the pneumatic tubing to the (As Shipped) pressure pickup port in the duct and route it to the high side pres- sure pickup port of the transducer.

  • Page 31: Building Pressure Transducer

    BUILDING PRESSURE TRANSDUCER Step 13 — Install Accessories The unit can be equipped with factory wired and installed building Available accessories include: pressure transducer for variable speed supply fan operation based • Smoke Detectors on zone static pressure (100% OA only) or variable speed exhaust •...

  • Page 32: Controls

    If so, use the advanced menu op- tion on the web browser to acknowledge and accept the connec- tion. LEGACY CONTROL INTERFACES The SmartVu controls are not compatible with legacy Carrier con- Fig. 49 — RARH Sensor Location trol interfaces, such as the Navigator ™...
  • Page 33 Lock Clip 167.4 167.4 USB J1 M5 0.8 X 20 mm Flat Tip Set Screw Torque 0.45 - 0.56 Nm 64.8 64.8 Dimensions are in mm Dimensions are in mm Fig. 52 — Carrier SmartVu Touchscreen Display Interface and Connections...
  • Page 34 Table 6 — Navigation Buttons BUTTON NAME ACTION Home Button Goes to the home screen. Back Button Goes back to the previous screen. Main Menu Button Goes to the main menu screen. Login Button Goes to the login screen. Start/Stop Button Goes to the start/stop screen.

  • Page 35: Navigation Convention

    NAVIGATION CONVENTION pressing the system configuration icon on the main menu screen), then go to the Cooling Configuration screen (by pressing the This manual provides guidance to access specific screens to per- cooling configuration icon on the system configuration screen). form specific functions.

  • Page 36: Data Entry

    DATA ENTRY Most screens contain data that is editable or selectable between multiple options, such as setpoints and configurations. See Table 7 for interface buttons related to data entry. NOTE: Sufficient access level may be required to modify set- points and settings. Editable data is indicated by a number with a box around it or letters/characters with a box or oval .
  • Page 37 Table 7 — Data Buttons VIEW NAME ACTION View Only Data None. The data is not editable. Editable Data Brings up the keypad or keyboard for data entry. Password Entry Brings up the keyboard to allow password entry. Inactive Bubble The indicated option is not active.

  • Page 38: Main Screens

    Main Screens WELCOME SCREEN The welcome screen is the first screen shown after Carrier Con- troller is powered on and will be shown for 2-3 minutes. See Fig. 58. The welcome screen will automatically change to the Home screen when the controller has completed initialization.

  • Page 39: Status Screen

    Includes all User access, plus access to advanced setpoints and settings. Password is only available to factory Service Rolling trained personnel. See Advanced Controls, Operation, and Troubleshooting Guide for information on obtaining the service password or contact your local Carrier sales office for emergency service password access. Factory Rolling Factory use only.

  • Page 40: Control Quick Setup

    Fig. 63 — Status Screen Fig. 67 — Controller ID Screen Fig. 64 — Setpoint Screen Fig. 68 — Start/Stop Screen Table 9 — Start/Stop Functions FUNCTION DESCRIPTION Off – unit operation is disabled when power is cycled. Auto Reset On –...

  • Page 41: Step 2 - Login With User Access Level

    Controls, Operation, and Troubleshooting manual for trouble- right of the month and year to increase or decrease the month or shooting steps or contact your Carrier sales office. click on the month/year to bring up a drop-down list. Once the cal- endar is at the correct month and year, click on the current date to Table 10 —...
  • Page 42 Table 11 — Daylight Savings Time Configurations CONFIGURATION VALUE DESCRIPTION Daylight savings time is enabled, the system time will automatically Enable be adjusted based on the DST DST Enable configuration. Disable Daylight savings time is not used. Start Month Jan. to Dec. The month that DST will start. The week of the month that DST Start Week 1 to 5...
  • Page 43 The system does not monitor the COFS input. SZ A/C 0=Not Used Auxiliary relay is not used. 1-Alarm The auxiliary relay indicates alarm status. Commonly used with Carrier VRF ERV Auxiliary Relay Status controllers. 2= Occ Status The auxiliary relay indicates occupancy status.

  • Page 44: Step 6 - Configure Equipment For Field- Installed Sensors

    STEP 6 — CONFIGURE EQUIPMENT FOR FIELD- INSTALLED SENSORS Navigate to the Sensor Configuration screen (Main Menu   System Config Sensor Config). Review the sensor listing and enable or configure any field-installed sensors. See Fig. 74 for Sensor Configuration screen layout. When finished, click the save changes button at the bottom of the page.
  • Page 45 Table 13 — Sensor Configurations by Application CONFIGURATION VALUE DESCRIPTION APPLICATION The system monitors a local space temperature sensor input. Required for Enable SZ A/C applications where the cool/heat demand source is configured for SPT. SPT Sensor Disable The system does not monitor the local space temperature sensor input. Enable The system monitors a local space temperature sensor offset.
  • Page 46 Table 14 — Indoor Fan Configurations by Application CONFIGURATION VALUE DESCRIPTION APPLICATION The indoor fan operates at the IDF high cool speed with a cool, vent, or dehum. demand, and the IDF high heat speed with a heat demand. CV IDF control is common 0 = Constant Volume 100% OA for 100% OA applications, can be used in select single-zone A/C applications (where...

  • Page 47: Step 8 - Configure Outdoor Air Damper

    Table 14 — Indoor Fan Configurations by Application (cont) Configuration VALUE DESCRIPTION APPLICATION IDF Low Heat 0 to 100%, IDF low heat speed is only used as part of SAV demand or SAV capacity IDF control SZ A/C Speed 66% default for units with a heat source.
  • Page 48 Table 15 — Outdoor Air Damper Configurations by Application CONFIGURATION VALUE DESCRIPTION APPLICATION Ventilation is not performed. This configuration should only be used on 0 = None SZ A/C equipment without an economizer (OAD). The OAD ventilation position is modulated linearly based on the indoor fan speed and IDF/OAD vent positions 1-4 configurations.
  • Page 49 STEP 9 — CONFIGURE THE COOLING SYSTEM Navigate to the Cooling Configuration screen (Main Menu   System Config  Cooling Config). Configure the cool/heat demand source for OAT for 100% OA applications or SPT or TSTAT for SZ A/C applications. See Fig. 77 for cooling configu- ration screen layout.
  • Page 50 Table 16 — Cooling Configurations by Application CONFIGURATION VALUE DESCRIPTION APPLICATION 0 = None (Default) Cooling and heating is disabled. None The control compares the space temperature sensor (SPT) reading to the occupied/ unoccupied cooling (and heating) setpoints to determine if there is a cooling (or 1 = SPT SZ A/C heating) demand.
  • Page 51 STEP 11 — CONFIGURE THE HEATING SYSTEM (OPTIONAL) For units with a heat source, navigate to the Heating Configuration screen (Main Menu  System ConfigHeating Config). The heater configuration screen will only show if the unit is equipped with a heat source. Set the heater configurations based on the ap- plication requirements.
  • Page 52 Table 19 — Exhaust Fan Configurations by Application CONFIGURATION VALUE DESCRIPTION APPLICATION 0 = None The unit does not have an exhaust fan The exhaust fan stages between off and two discrete speeds based on outdoor air damper position. Requires the outdoor air damper and exhaust fan to be enabled in the equipment configuration.
  • Page 53 STEP 14 — SET INDOOR FAN SETPOINTS (OPTIONAL) If the unit is configured for SP or ZP IDF control, navigate to the Indoor Fan Setpoint screen (Main Menu Setpoints  Indoor Fan Setpoints). Adjust fan setpoints as needed based on applica- tion requirements.
  • Page 54 STEP 16 — SET DEHUMIDIFY SETPOINTS Navigate to the Dehumidify Setpoints screen (Main Menu  Setpoints Dehum Setpoints). Adjust the dehumidify setpoints based on application requirements. See Fig. 84 for Dehumidify Setpoint screen layout. When finished, click the save changes button at the bottom of the screen.
  • Page 55 STEP 18 — SET EXHAUST FAN SETPOINTS WITH BP application requirements. When finished, click the home button to exit to the home screen. Then click the save changes button EXHAUST FAN CONTROL (OPTIONAL) the bottom of the screen. Navigate to the Exhaust Fan Setpoint screen (Main Menu  Up to eight different local schedules can be configured.
  • Page 56 indoor fan (IDF) is on (occupied period), the demand is set to vent. 100% OUTDOOR AIR OPERATION When the unit is off (unoccupied period), the demand is set to Overview none. During the occupied period, the indoor fan (IDF) and exhaust fan Dehumidify Demand Source (EXF, if equipped) turn on and the outdoor air damper (OAD) opens to its maximum position.
  • Page 57 outdoor air operation by component for the occupied period and Sequence of Operation (100% Outdoor Air) Table 35 for the unoccupied period. Operation may additionally be The control sequence of operation depends on the occupancy limited by service lockouts. period, component configuration, and demand level (cooling, heating, and dehumidify).
  • Page 58 Table 35 — 100% OA Unoccupied Sequence of Operation by Configuration INDOOR FAN (IDF) OCCUPANCY DEMAND UNOCC IDF IDF CONTROL OPERATION Unoccupied None Disabled The IDF is off. OUTDOOR AIR DAMPER (OAD) OCCUPANCY DEMAND OAD CONTROL OPERATION Unoccupied None 100% OAD enabled The OAD is closed.
  • Page 59 Table 36 — SPT Occupied Demand Determination (SZ A/C) DEMAND START CONDITION STOP CONDITION The IDF is configured for demand during the occupied period, and the SPT is below the Occupied Cooling setpoint plus the Low Cool On deadband and above the Occupied Heating None setpoint minus the Low Heat On deadband.
  • Page 60 Table 37 — SPT Unoccupied Demand Determination (SZ A/C) DEMAND START CONDITION STOP CONDITION The IDF is configured for disabled during the unoccupied period. The IDF is configured for demand during the unoccupied period and SPT is below the Unoccupied Cooling setpoint plus the Low Cool On deadband and above the Unoccupied None Heating setpoint minus the Low Heat On deadband, and the...
  • Page 61 Table 38 — TSTAT Occupied Demand Determination (SZ A/C) DEMAND START CONDITION STOP CONDITION The IDF is configured for demand operation during the None Y1, Y3, and W1 inputs become active. occupied period and no inputs are active. The IDF is configured for continuous operation during the Vent Y1, Y3, or W1 inputs become active.
  • Page 62 and dehumidify). See Tables 40-45 for the typical 100% out- Sequence of Operation door air operation by configuration for the occupied period. (Single-Zone AC Operation See Tables 46-51 for the unoccupied period. Operation may The control sequence of operation depends on the occupancy peri- additionally be limited by service lockouts.
  • Page 63 Table 42 — SZ A/C Cool/Dehumidify Occupied Sequence of Operation by Configuration COOL/HEAT DEHUM DEMAND OCCUPANCY DEMAND SOURCE DEMAND OPERATION SOURCE CONFIG. CONFIG. None The compressors and HGRH are off. If the MAT is above the Vent SAT setpoint minus the Vent deadband the compressors and HGRH are off.
  • Page 64 Table 44 — SZ A/C Heat (If Equipped) Occupied Sequence of Operation by Configuration COOL/HEAT DEHUM DEMAND OCCUPANCY DEMAND SOURCE DEMAND OPERATION SOURCE CONFIG. CONFIG. None The heat source is off. If the MAT is above the Vent SAT setpoint minus the Vent deadband the compressors and HGRH are off.
  • Page 65 Table 46 — SZ A/C Indoor Fan (IDF) Unoccupied Sequence of Operation by Configuration IDF CONTROL UNOCCUPIED IDF OCCUPANCY DEMAND OPERATION CONFIG. CONFIG. Disabled The IDF is off. None The IDF is off. Constant Volume (CV) Demand The IDF operates at the constant volume (CV) speed All Other configuration.
  • Page 66 Table 49 — SZ A/C Exhaust Fan (EXF) Unoccupied Sequence of Operation by Configuration OCCUPANCY EXF CONTROL DEMAND OPERATION Unoccupied The EXF is off. Table 50 — SZ A/C Heat (If Occupied) Sequence of Operation by Configuration COOL/HEAT DEHUM DEMAND OCCUPANCY DEMAND OPERATION...
  • Page 67 (OAD) or exhaust fan, are missing from this screen, refer to the Configure Equipment section of the controls quick start guide. If a factory-installed component is missing from this screen, such as the indoor fan, HGRH valve, contact your local Carrier sales rep- Fig. C — Crankcase Heater Test Example resentative.
  • Page 68 APPENDIX A — START-UP CONTROL OPERATION (cont) Step 4 — Enable Service Run Mode Step 6 — Restore Unit Operation Service can be used to enable and test systems, such as cooling, Navigate back to the Start/Stop screen. Press disable unit to pre- dehumidification, and heating.
  • Page 69 APPENDIX B — AIR BALANCE INSTRUCTIONS nent off. See Fig. I for an example of the indoor fan turned on and Overview requested at 20% speed in test mode. This section provides basic guidance on using component test to test the air system and details on key air system configurations and Step 4 - Record Required Test Values, Set Con- setpoints.
  • Page 70 APPENDIX B — AIR BALANCE INSTRUCTIONS (cont) Table A — Indoor Fan Configurations CONFIGURATION VALUE DESCRIPTION   (Main Menu System Config IDF Config) Minimum speed the IDF can operate at, typically during vent mode. Used for SAV Demand, SAV Capacity, SP, IDF Min.
  • Page 71 APPENDIX B — AIR BALANCE INSTRUCTIONS (cont) Table D — Exhaust Fan Configurations CONFIG./SETPOINT VALUE DESCRIPTION   (Main Menu System Config IDF Config) The maximum speed the EXF can operate at, based on the max design exhaust airflow (usually during free EXF Max Speed cooling).
  • Page 72 © 2024 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500316-01 Printed in U.S.A. Form No. 50LCH-7-12-01SI Pg 72 4-24 Replaces: NEW...
  • Page 73 (The pre-start-up checklist must be completed by installing contractor. For Carrier factory start-up, the prestart-up checklist must be submit- ted to the Carrier start-up team prior to arranging start-up. Please review to the unit submittal or air balance report for airflow information.)
  • Page 74 Verify packing materials have been removed from the unit. (Y/NA) _____ Verify the unit is free of damage. If damage exists, contact your local Carrier sales representative. (Y/NA) _____ Verify the unit has been installed in accordance with the service clearances in the installation instructions.
  • Page 75 III. CONTROL CONFIGURATION Fill in the table to indicate the unit control configurations that are set as part of the prestart-up setup. Control and configuration setup are not included in factory start-up. Schedule Outdoor Air Damper Configurations CONFIGURATION VALUE APPLICATION CONFIGURATION VALUE ...
  • Page 76 Dehumidify Configurations Exhaust Fan Configurations CONFIGURATION VALUE CONFIGURATION VALUE     (Main Menu System Config Dehum Config) (Main Menu System Config Exhaust Fan Config) 0=None 0 = None 1 = HSTAT 1 = 2-Stage Exhaust Fan Control Demand Source 2 = RARH 2 = Third-Party 3 = SPRH...
  • Page 77 IV. CONTROL SETPOINTS Fill in the table to indicate the unit control setpoints that are set as part of the prestart-up setup. Control and setpoint setup not included in factory start-up. Free Cooling Setpoints Dehumidify Setpoints     (Main Menu System Config Free Cool Config)
  • Page 78 START-UP CHECKLIST To be completed by installing contractor or Carrier Factory Service. A copy of the checklist, start-up checklist, and log must be provided to the Carrier start-up team after start-up has been completed. WARNING: To avoid injury to personnel and damage to equipment or...
  • Page 79 START-UP LOG ELECTRICAL Incoming Voltage L1-L2_____________ L1-L3_____________ L2-L3_____________ Average Voltage L1 _________________ (L1-L2+L1-L3+L2-L3)/3 Voltage Tolerance L1 _________________(Average Voltage-Nameplate Voltage)/Nameplate Voltage Voltage Imbalance L1 _________________(Maximum Deviation Voltage/Average Voltage) x 100 The Maximum Deviation Voltage is the voltage that is furthest away from the Average Voltage. IMPORTANT: Do not proceed with start-up if voltage tolerance or imbalance exceeds 10%.
  • Page 80 ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ © 2024 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500316-01 Printed in U.S.A. Form No. 50LCH-7-12-01SI Pg CL-8...

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