Ingersoll-Rand YSC033G Installation, Operation And Maintenance Manual
  1. Manuals
  2. Brands
  3. Ingersoll-Rand Manuals
  4. Air Conditioner
  5. YSC033G
  6. Installation, operation and maintenance manual
Ingersoll-Rand YSC033G Installation, Operation And Maintenance Manual

Ingersoll-Rand YSC033G Installation, Operation And Maintenance Manual

Rooftop air conditioner
Hide thumbs
Table of Contents

Advertisement

Quick Links

Installation, Operation,
and Maintenance
Packaged Rooftop Air Conditioners
Precedent™ — Cooling and Gas/Electric
3 to 10Tons – 60 Hz
Model Numbers
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing
of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and
training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags,
stickers, and labels that are attached to the equipment.
May 2016
YSC033G - YSC063G
YSC036 - YSC060G
YSC072F - YSC120F
YHC048F - YHC060F
SAFETY WARNING
RT-SVX21U-EN
YHC037E - YHC067E
YHC036E - YHC072E
YHC120F
YHC072F - YHC102F

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the YSC033G and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Ingersoll-Rand YSC033G

Summary of Contents for Ingersoll-Rand YSC033G

  • Page 1 Installation, Operation, and Maintenance Packaged Rooftop Air Conditioners Precedent™ — Cooling and Gas/Electric 3 to 10Tons – 60 Hz Model Numbers YSC033G - YSC063G YHC037E - YHC067E YSC036 - YSC060G YHC036E - YHC072E YSC072F - YSC120F YHC120F YHC048F - YHC060F...
  • Page 2 Introduction Read this manual thoroughly before operating or servicing this unit. WARNING Warnings, Cautions, and Notices Proper Field Wiring and Grounding Required! Safety advisories appear throughout this manual as Failure to follow code could result in death or serious required.Your personal safety and the proper operation of injury.
  • Page 3 Introduction to its content without obligation to notify any person of such revision or change. Trademarks All trademarks referenced in this document are the trademarks of their respective owners. Revision History • Added Air-Fi™ Wireless Communication Interface • Unit start-up, removal of MMC •...

  • Page 4: Table Of Contents

    Table of Contents Model Number Descriptions - 3 to 10 Tons (T/Y) Factory Installed Economizer ..30 Temperature Limit Switch Usage for Gas Model Number Notes ....7 Heat Units .
  • Page 5 Table of Contents Unit Start-Up Clogged Filter Switch ....65 ......51 Verifying Proper Air Flow .

  • Page 6: Model Number Descriptions - 3 To 10 Tons (T/Y)

    Model Number Descriptions - 3 to 10 Tons (T/Y) Digit 1 - Unit Type Digit 11 - Minor Design Digit 18 - Through-the-Base Sequence Provisions DX Cooling DX Cooling, Gas Heat First Sequence Note: Applicable to Digit 1,T orY Second Sequence Digit 2 - Efficiency models NoThrough-the-Base Provisions...

  • Page 7: Model Number Notes

    Model Number Descriptions - 3 to 10 Tons (T/Y) Digit 25 - System Monitoring (T,Y)HC (036, 048, 060, 072, 074, Not Available Controls 092, 102, 120). Standard Efficiency No Monitoring Control 3 to 5 Tons and 10 Ton w/575V 3. Not available with High Efficiency Clogged Filter Switch electromechanical controls.
  • Page 8 Model Number Descriptions - 3 to 10 Tons (T/Y) T/YHC 4, 5, 6, 7½, 8½, 10 ton MCHE high efficiency models (except for 4, 5, 6 ton dehumidification models). 25. Not available on high efficiency 575V. 26. Epoxy coil and epoxy with hail guard options are not available for units with microchannel condenser coil.

  • Page 9: Model Number Descriptions - 3 To 5 Tons (T/Y - 17 Plus)

    Model Number Descriptions - 3 to 5 Tons (T/Y - 17 Plus) Model Number Descriptions - 3 to 5 Tons (T/Y - 17 Plus) Digit 1 - Unit Type Digit 14 - Fresh Air Selection Digit 18 - Through the Base Provisions DX Cooling No Fresh Air...

  • Page 10: Model Number Notes

    Model Number Descriptions - 3 to 5 Tons (T/Y - 17 Plus) Novar Return Air Sensor horizontal configuration. 21. Discharge Air Sensing is also 12,20 (NOVAR 2024) Barometric Relief for horizontal standard equipment on units Novar ZoneTemp Sensor configured units must be ordered with Single Zone and Supply Air 15,20 (NOVAR 3051)

  • Page 11: General Information

    General Information Unit Inspection Compressor Nameplate As soon as the unit arrives at the job site The nameplate for the compressors are located on the side of the compressor. • Verify that the nameplate data matches the data on the sales order and bill of lading (including electrical data).

  • Page 12: System Input Devices & Functions

    General Information Supply Fan Failure Input (Optional) +/- 5% of stroke.The actuator is spring returned to the closed position any time that power is lost to the unit. It is The Fan Failure Switch can be connected to sense indoor capable of delivering up to 25 inch pounds of torque and fan operation: is powered by 24 VAC.

  • Page 13: Low Pressure Control

    General Information Compressor Disable (CPR1/2) Power Exhaust Control (Optional) This input incorporates the low pressure control (LPC) of ReliaTel™ Control each refrigeration circuit and can be activated by opening The power exhaust fan is started whenever the position of a field supplied contact installed on the LTB. the economizer dampers meets or exceed the power If this circuit is open before the compressor is started, the exhaust setpoint when the indoor fan is on.

  • Page 14: Evaporator Frost Control

    General Information Remote Zone Sensor (BAYSENS016*) 40% and 60% by adjusting the DEHUMID setting on the ReliaTel Options Module. See Figure 45, p. This bullet type temperature sensor can be used for Duct Mounted Relative Humidity Sensor outside air (ambient) sensing, return air temperature sensing, supply air temperature sensing, remote (BAYSENS037*) temperature sensing (uncovered).Wiring procedures vary...

  • Page 15: Discharge Line Temp Switch (Dlts)

    General Information closing a field supplied contact installed in parallel with these checks and procedures, refer to the appropriate the FOS. section(s) of the smoke detector Installation and Maintenance Instructions provided with the literature If this circuit is closed before the compressor is started, the package for this unit.

  • Page 16: Unit Dimensions

    Unit Dimensions Figure 1, p. 16 illustrates the minimum operating and Providing less than the recommended clearances may service clearances for either a single or multiple unit result in condenser coil starvation, “short-circuiting” of installation.These clearances are the minimum distances exhaust and economizer airflows, or recirculation of hot necessary to assure adequate serviceability, cataloged condenser air.
  • Page 17 Unit Dimensions Figure 2. 3 to 5 tons standard efficiency Notes: 1. All dimensions are in inches/millimeters. 2. ½ NPT Gas Connection TOP PANEL EVAPORATOR SECTION ACCESS PANEL CONDENSER FAN 40 7/8” 1038 MM 4 1/4” 108 MM ALTERNATE CONDENSATE DRAIN 3/4 - 14 NPT DIA.
  • Page 18 Unit Dimensions Figure 4. 3-5 ton standard efficiency, 3 ton high efficiency - roof curb Note: All dimensions are in inches/millimeters. 44 MM 8 3/8” 213 MM 44 MM 1038 1038 MM 1053 1053 MM Figure 5. 3-5 ton standard efficiency, 3 ton high efficiency - unit clearance and roof opening Note: All dimensions are in inches/millimeters.
  • Page 19 Unit Dimensions Figure 6. 6, 7½ (single) ton standard efficiency, 4-5 ton high efficiency Note: All dimensions are in inches/millimeters. Figure 7. 6, 7½ (single) ton standard efficiency, 4-5 ton high efficiency - roof curb Note: All dimensions are in inches/millimeters. (356 MM) (2130 MM) RT-SVX21U-EN...
  • Page 20 Unit Dimensions Figure 8. 6, 7½ (single) ton standard efficiency, 4-5 ton high efficiency - unit clearance and roof opening Note: All dimensions are in inches/millimeters. Figure 9. 7½ ton (dual) - 10 ton standard efficiency, 6 - 8½ (MCHE) ton high efficiency, 6 ton dehumidification Note: All dimensions are in inches/millimeters.
  • Page 21 Unit Dimensions Figure 10. 7½ ton (dual) - 10 ton standard efficiency, 6 - 8½ (MCHE) ton high efficiency, 6 ton dehumidification roof curb Note: All dimensions are in inches/millimeters. (356 MM) (2130 MM) Figure 11. 7½ ton (dual) - 10 tons standard efficiency, 6 - 8½ (MCHE) ton high efficiency, 6 ton dehumidification unit clearance and roof opening Note: All dimensions are in inches/millimeters.
  • Page 22 Unit Dimensions Figure 12. 10 ton high efficiency Notes: 1. All dimensions are in inches/millimeters. 2. ½ or ¾ NPT Gas Connection INDOOR TOP PANEL OUTDOOR TOP PANEL UNIT CONTROL WIRE 7/8” (22MM) DIA HOLE CONTROL BOX SECTION ACCESS PANEL 50 7/8”...
  • Page 23 Unit Dimensions Figure 14. 10 ton high efficiency- unit clearance and roof opening Notes: 1. All dimensions are in inches/millimeters. 99 11/16” (2532 MM) 63 3/16” (1605 MM) RT-SVX21U-EN...

  • Page 24: Installation

    Installation Pre-Installation WARNING Improper Unit Lift! WARNING Failure to properly lift unit could result in unit dropping Fiberglass Wool! and possibly crushing operator/technician which could result in death or serious injury, and equipment or Exposition to glass wool fibers without all necessary property-only damage.
  • Page 25 Maximum unit & corner weights (lbs) and center of gravity dimensions (in.) - gas/electric models Maximum Model Unit Weights Corner Weights Center of Gravity (in.) Tons Model No. Shipping Length Width YSC033G YSC036G YSC043G YSC048G YSC060G YSC063G YSC072F 7½ YSC090F 7½ YSC092F 8½...

  • Page 26: Foundation

    Installation (a),(b) Table 2. Factory installed options (fiops)/accessory net weights (lbs) YSC033G-063G YHC047E-067E YSC036G-060G YHC048E-060E YSC072F-102F YSC120F YHC036E, YHC037E YHC048F-060F YHC072E/F YHC074F-102F YHC120F Net Weight Net Weight Net Weight Net Weight Net Weight Accessory 3 to 5 Tons 4 to 5 Tons 6 to 8½...

  • Page 27: Ductwork

    Installation Ductwork Figure 20, p. 27 Figure 22, p. 28 illustrate the supply and return air openings in a downflow configuration. Figure 17, p. 27 Figure 19, p. 27 illustrate the supply and Elbows with turning vanes or splitters are recommended return air openings as viewed from the rear of the unit.

  • Page 28: Roof Curb

    Installation instructions carefully to assure proper fit-up when the unit Figure 22. 10 ton high efficiency unit - downflow supply is set into place. & return air openings w/ through-the-base Note: To assure proper condensate flow during utilities operation, as well as proper operation of the 3 5/8”...

  • Page 29: Rigging

    Installation Rigging Figure 25. Fork pockets - all units except 10 ton high efficiency units WARNING Heavy Objects! Failure to follow instructions below or properly lift unit could result in unit dropping and possibly crushing operator/technician which could result in death or serious injury, and equipment or property-only damage.

  • Page 30: Factory Installed Economizer

    Installation • Verify correct model, options and voltage from unit Table 3. TC01 tripping values (continued) nameplate. Unit Model - 6 to 10 Ton TCO1 Tripping Values - • Verify that the installation location of the unit will Standard Efficiency Downflow/ Horizontal provide the required clearance for proper operation.

  • Page 31: Horizontal Discharge Conversion

    Installation (a),(b) Table 4. TC01 tripping values (continued) Figure 27. Duct cover Unit Model - High Efficiency TCO1 Tripping Values - 15 SEER Downflow/ Horizontal YHC120F**(H,Z) 145F/190F (a) BD= Belt drive ID motor (b) DD= Direct drive ID motor RTV Sealant Table 5.

  • Page 32: Horizontal Discharge Conversion

    Installation Figure 30. Duct cover WARNING Hazardous Voltage! Failure to disconnect power before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects before servicing. RTV Sealant Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. 1.

  • Page 33: Tco1 Instructions

    Installation TCO1 Instructions If a unit is to be converted to horizontal discharge, the following conversion must be performed: If the unit being installed is listed in the following list, the 1. If the unit has an economizer, it must be pulled out in limit controlTCO1 must be replaced with the extra limit the operating position.

  • Page 34: Air-Fi™ Wireless Communication Interface

    Installation 2. Remove the screw from the mounting bracket. Refer to Figure 36. Horizontal view 2 downflow view for screw and bracket location. Figure 37. Wireless communication interface - downflow 3. Mount the bracket in the horizontal discharge location. Refer to horizontal view for screw and bracket location. Figure 38.

  • Page 35: Through-The-Base Gas Installation

    Installation Figure 39. Typical through-the-base gas installation WARNING Proper Field Wiring and Grounding Required! Failure to follow code could result in death or serious injury. All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state electrical codes.

  • Page 36: Condensate Drain Configuration

    Installation Condensate Drain Configuration 7. Slide the condensate drain pan back into the unit, align the drain support with the grommeted opening in the rear support panel and push until the support is seated in the grommet. WARNING 8. Replace the front support panel by aligning the panel Hazardous Voltage! with tabs in the raceway.Align the plugged condensate Failure to disconnect power before servicing could...

  • Page 37: Field Installed Power Wiring

    Installation Note: Do not operate the unit without filters. WARNING Field Installed Power Wiring Hazardous Voltage! Failure to disconnect power before servicing could result in death or serious injury. Disconnect all electric WARNING power, including remote disconnects before servicing. Proper Field Wiring and Grounding Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized.

  • Page 38: Field-Installed Control Wiring

    Installation Figure 41. All units except 10 ton high efficiency units WARNING Proper Field Wiring and Grounding Required! Failure to follow code could result in death or serious injury. All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards.

  • Page 39: Controls Using Dc Analog Input/Outputs (Standard Low Voltage Multi Conductor Wire)

    Installation DC Conductors 3. Do not run the AC low voltage wiring in the same conduit with the high voltage power wiring. Table 9. Zone sensor module wiring 4. Route low voltage wiring per illustrations on page 41. Distance from Unit to Control Recommended Wire Size Table 7.
  • Page 40 Installation Figure 44. ReliaTel™ conventional thermostat field Figure 47. ReliaTel™ humidistat (dehumidification wiring diagrams option) RTRM (a) Not compatible with VAV units. Figure 45. ReliaTel™ options module (RTOM board) Figure 46. ReliaTel™ relative humidity sensor (dehumidification option) RT-SVX21U-EN...
  • Page 41 Installation Figure 48. Electromechanical control customer low voltage routing (all units except 10 ton high efficiency) Figure 49. ReliaTel™ control customer low voltage routing (all units except 10 ton high efficiency) RT-SVX21U-EN...
  • Page 42 Installation Figure 50. ReliaTel™ (without TBUE) control customer wire routing (10 ton high efficiency) COMMUNICATION ENTER CONTROL BOX THROUGH HOLE IN INTERFACE (COMM) OUTDOOR DIVIDER PANEL. SECURE FIELD ReliaTel OPTIONS WIRING WITH POP-IN WIRE TIE NEAR MODULE (RTOM) HOLE IN OUTDOOR DIVIDER PANEL. REFRIGERATION MODULE (RTRM) LOW-VOLTAGE...
  • Page 43 Installation Figure 52. Electromechanical (without TBUE) control customer wire routing (10 ton high efficiency) Figure 53. Electromechanical (with TBUE) control customer wire routing (10 ton high efficiency) RT-SVX21U-EN...

  • Page 44: Space Temperature Averaging

    Installation Space Temperature Averaging • Example #1 illustrates two series circuits with two sensors in each circuit wired in parallel.The square of (ReliaTel™ Only) any number of remote sensors is required. • Example #2 illustrates three sensors squared in a Space temperature averaging is accomplished by wiring a series/parallel circuit.
  • Page 45 Installation Figure 55. Typical field wiring diagrams for optional controls (ReliaTel™ only) BAYSENS075* BAYSENS075* BAYSENS108* BAYSENS106* BAYSENS110* BAYSENS119* BAYSENS073* BAYSENS074* BAYSENS075* ASYSTAT669A OPTIONAL REMOTE SENSOR RT-SVX21U-EN...
  • Page 46 Installation Table 10. Temperature vs. resistance Table 12. Iron pipe size (SI) millimeters Temperature Iron Pipe Size (SI) Millimeters Degrees F° Degrees C° Nominal Resistance Length of Pipe 15 mm 20 mm 25 mm 32 mm 40 mm -20° -28.9° 170.1 K - Ohms (Meters) Pipe...

  • Page 47: Pre-Start

    Pre-Start Use the checklist provided below in conjunction with the within the proper tolerances, notify the power company to “General Unit Requirements” checklist to ensure that the correct this situation before operating the unit. unit is properly installed and ready for operation. Excessive three phase voltage imbalance between phases will cause motors to overheat and eventually fail.The WARNING...

  • Page 48: Compressor Crankcase Heaters (Optional)

    Pre-Start • Close the field supplied main power disconnect switch Close the main power disconnect switch and the unit or circuit protector switch that provides the supply mounted disconnect switch, if applicable. power to the unit. Note: Upon closing main power disconnect and the unit Note: Upon closing main power disconnect and the unit mounted disconnect switch or circuit breaker, the mounted disconnect switch or circuit breaker, the...

  • Page 49: Test Modes

    Pre-Start Table 13. Service test guide for component operation Test Multi-Speed Fan Step Mode Econ Comp 1 Comp 2 Heat 1 Heat 2 Resistance Output Output Minimum Position Setpoint 0% Ω 2.2K Minimum Selectable Ventilation Economizer Ω Open 3.3K Test Open Cool Minimum Ω...

  • Page 50: Electromechanical Controls Test

    Pre-Start Electromechanical Controls Test Procedure See unit schematic for correct wire numbers. Fan Test and Minimum Ventilation Connect red thermostat wire (R) to black thermostat wire (G). Economizer Cooling Connect a jumper wire across OTS on Economizer Control (ECA). Connect red thermostat (R) wire to yellow thermostat wire (Y1).

  • Page 51: Unit Start-Up

    Unit Start-Up Verifying Proper Air Flow 2. Use the accessory pressure drop table in the Service Facts, to calculate the total static pressure drop for all of the accessories installed on the unit; i.e., curb, economizer, etc. WARNING Note: Accessory static pressure drop is based on desired Live Electrical Components! CFM and may not be actual static pressure drop.

  • Page 52: Units With Direct Drive Indoor Fan - Electromechanical Control

    Unit Start-Up With the fan operating properly, determine the total Using the ServiceTest Guide in Table 13, p. system airflow (CFM) by (ReliaTel™/Electromechanical): momentarily jump across theTest 1 &Test 2 terminals on LTB1. Repeat process until ServiceTest Mode is at Cool 2 1.

  • Page 53: Plus Units With The Constant Cfm Direct Drive Indoor Fan

    Unit Start-Up 1. Measure the amperage at the supply fan contactor and Once the supply fan has started, determine the total compare it with the full load amp (FLA) rating for the system airflow (CFM) by: evaporator motor stamped on the unit nameplate. 1.

  • Page 54: Vhr Relay Output

    Unit Start-Up Note: With the indoor fan access panel removed, the fan unsuitable conditions, the mechanical cooling will cycle as will operate at a lower RPM because static pressure though the unit had no economizer. is reduced with the door open. Once the panel is Note: The RTRM is designed to maintain a selectable returned the RPM of the indoor fan will increase.

  • Page 55: Supply Duct Static Pressure Control

    Unit Start-Up Supply Air Temperature Reset If the system control is local, the DWU initiation setpoint is 3°F below the MorningWarm-up setpoint.The termination The supply air temperature can be reset by using one of setpoint is equal to the Morning Warm-up setpoint. four DIP switch configurations on the RTAM or through ICS If the system control is remote (Tracer®), the DWU when a valid supply air reset setpoint with a supply air...

  • Page 56: Economizer Start-Up

    Unit Start-Up below. Failure to follow these instructions will prevent the smoke detector from performing its design function. WARNING Live Electrical Components! Economizer Start-Up Failure to follow all electrical safety precautions when exposed to live electrical components could result in WARNING death or serious injury.

  • Page 57: Compressor Start-Up

    Unit Start-Up Dehumidification Option 4. To stop the SERVICETEST, turn the main power disconnect switch to the “Off” position or proceed to the next component start-up procedure. Remove WARNING electromechanical test mode connections (if applicable). Live Electrical Components! Compressor Start-Up Failure to follow all electrical safety precautions when exposed to live electrical components could result in 1.
  • Page 58 Unit Start-Up • Inspect the unit for misplaced tools, hardware, and debris. • Verify that all exterior panels including the control panel doors and condenser grilles are secured in place. • Close the main disconnect switch or circuit protector switch that provides the supply power to the unit’s terminal block or the unit mounted disconnect switch.

  • Page 59: Maintenance

    Maintenance Once the new belts are installed, using a Browning or Gates tension gauge (or equivalent) illustrated in WARNING Figure 58, p. 59, adjust the belt tension as follows; Hazardous Service Procedures! 1. To determine the appropriate belt deflection; Failure to follow all precautions in this manual and on a.

  • Page 60: Monthly Maintenance

    Maintenance Cooling Season Table 16. Belt tension measurement and deflection • Check the unit’s drain pans and condensate piping to Deflection Force (Lbs.) ensure that there are no blockages. Belts Small Cross Super Steel Cable • Inspect the evaporator and condenser coils for dirt, Section Range Gripbelts...

  • Page 61: Coil Cleaning

    Maintenance Round Tube Plate Fin (RTPF) Coils • Clean burner area, verify gas heat system operates properly. To clean refrigerant coils, use a soft brush and a sprayer (either a garden pump-up type or a high-pressure sprayer). Coil Cleaning A high-quality detergent is also required; suggested Regular coil maintenance, including annual cleaning, brands include “SPREX A.C.

  • Page 62: Annual Maintenance

    Maintenance Annual Maintenance 8. Inspect both sides of the coil; if it still appears to be dirty, repeat Step 6 Step • Clean and repaint any corroded surface. 9. Reinstall all of the components and panels removed in Step 1 and any protective covers installed in Step Final Process...

  • Page 63: Troubleshooting

    Troubleshooting 4. Utilizing “Method 1” or “Method 2” in the “System Status Diagnostic” section, check the following: WARNING • System status Hazardous Service Procedures! • Heating status Failure to follow all precautions in this manual and on the tags, stickers, and labels could result in death or •...
  • Page 64 Troubleshooting Service Failure “Off” when the heat cycle terminates or the LED fails. “Flashing” indicates a heating failure. • If the supply fan proving switch has closed, the unit will not operate (when connected to RTOM), check the fan Zone Sensor LED 3 (Cool) motor, belts, and proving switch.

  • Page 65: Resetting Cooling And Ignition Lockouts

    Troubleshooting Fan Failure Switch respective terminal wire (6 through 10) from the Zone Sensor to the unit J6 terminals 6 through 10. When the “Fan Failure” switch is wired to the RTOM, the Note: If the system is equipped with a programmable LED will remain flashing the entire time the fan proving zone sensor, BAYSENS119* the LED indicators will switch is closed, indicating a fan failure, and it will shut the...

  • Page 66: Test 4 - Led Indicator Test

    Troubleshooting terminals 2 and 4 on the Zone Sensor.The possible switch 3. Reconnect wires to terminals J6-11 and J6-12. Measure combinations are listed below with their corresponding voltage again between J6-11 and J6-12, voltage should resistance values. flash high and low every 0.5 seconds.The voltage on the low end will measure about 19 VDC, while the Test 4 - LED Indicator Test, (SYS ON, HEAT, voltage on the high end will measure from...

  • Page 67: Unit Economizer Control (Eca) Troubleshoot

    Troubleshooting Unit Economizer Control (ECA) 3. If the LED is not lit, verify that 24 VAC is present between R and B. If the LED is not lit and 24 VAC is Troubleshooting present replace the IGN. If 24 VAC is not present, check transformer (TNS1).
  • Page 68 Troubleshooting Method 2 To reset the system at the unit, cycle the unit power by turning the disconnect switch “Off” and then “On” . Table 19. Fault detection and diagnostic codes Primary Fault Codes Information Code Temp Mixed Air Outdoor Pressure Space Unit...

  • Page 69: Unit Economizer Control (Eca) Test Proce

    Troubleshooting Unit Economizer Control (ECA) The resistance should be approximately 130 Ohms. Replace the ECA if it is out of range. Test Procedures Troubleshooting procedures for Electromechanical Control Direct Drive Plenum Fan This series of tests will allow you to diagnose, and determine where, and if a problem exists in the system Prior to troubleshooting, verify all wiring and wiring economizer operation.Test 1 determines if the problem is...

  • Page 70: Unit Wiring Diagrams Numbers

    Unit Wiring Diagrams Numbers Note: Wiring diagrams can be accessed using e-Library by entering the diagram number in the literature order number search field or by contacting technical support. Table 21. Unit wiring diagram numbers Schematic Type Drawing Number Description 1213-1641 YSC(033-063)G ReliaTel Controls 4366-7217...
  • Page 71 Unit Wiring Diagrams Numbers Table 21. Unit wiring diagram numbers (continued) Schematic Type Drawing Number Description 1213-1672 YSC(033-063)G3 ReliaTel Controls 4366-7340 YHC(037) (230V) 4366-8247 YHC037E (230V), 17 Plus with Multi-Zone VAV 4366-7342 YHC(047-067) (230V) 4366-8249 YHC(047, 067)E (230V), 17 Plus with Multi-Zone VAV Y(S,H)C(036,048)E/F, YHC060F (1-Phase), ReliaTel 4366-4564 Controls...
  • Page 72 Unit Wiring Diagrams Numbers Table 21. Unit wiring diagram numbers (continued) Schematic Type Drawing Number Description YHC060E/F (460V), Electromechanical Controls, X13 4366-8399 Y(S,H)C(072,090)F (460V,575V), Electromechanical 4366-8389 Controls Connection Electromechanical 460V and/or 575V YSC(092,102)F (460V,575V), Electromechanical 4366-8407 Controls (YSC120,YHC074-120)F (460V), Electromechanical 4366-8401 Controls 4366-8402...

  • Page 73: Limited Warranty

    Limited Warranty Combination Gas Electric Air Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusion or Conditioner limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.This YCD, YCH, YSC and YHC (Parts Only) warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
  • Page 74 Ingersoll Rand (NYSE:IR) advances the quality of life by creating comfortable, sustainable and efficient environments. Our people and our family of brands—including Club Car®, Ingersoll Rand®,Thermo King® andTrane®—work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables; and increase industrial productivity and efficiency.

This manual is also suitable for:

Ysc036Ysc060gYhc036eYhc072eYsc072fYsc120f ... Show all

Table of Contents