Ingersoll-Rand Precedent WSC036H Installation, Operation And Maintenance Manual
  1. Manuals
  2. Brands
  3. Ingersoll-Rand Manuals
  4. Heat Pump
  5. Precedent WSC036H
  6. Installation, operation and maintenance manual

Ingersoll-Rand Precedent WSC036H Installation, Operation And Maintenance Manual

Precedent series packaged rooftop air conditioners
Hide thumbs Also See for Precedent WSC036H:
Table of Contents

Advertisement

Quick Links

Installation, Operation,
and Maintenance
Packaged Rooftop Air Conditioners
Precedent™ — Heat Pump
3 to 10 Tons — 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.
April 2018
WSC036H-WSC060H
WSC072H, WSC090E, WSC102H & WSC120H
W/DHC036H-W/DHC060H
SAFETY WARNING
RT-SVX23M-EN

Advertisement

Table of Contents
loading

Related Manuals for Ingersoll-Rand Precedent WSC036H

Summary of Contents for Ingersoll-Rand Precedent WSC036H

  • Page 1 Installation, Operation, and Maintenance Packaged Rooftop Air Conditioners Precedent™ — Heat Pump 3 to 10 Tons — 60 Hz Model Numbers WSC036H-WSC060H WSC072H, WSC090E, WSC102H & WSC120H W/DHC036H-W/DHC060H SAFETY WARNING 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.
  • Page 2 Introduction Read this manual thoroughly before operating or servicing this unit. WARNING Proper Field Wiring and Grounding Warnings, Cautions, and Notices 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: Revision History

    Introduction WARNING Follow EHS Policies! Failure to follow instructions below could result in death or serious injury. • All Ingersoll Rand personnel must follow Ingersoll Rand Environmental, Health and Safety (EHS) policies when performing work such as hot work, electrical, fall protection, lockout/tagout, refrigerant handling, etc.

  • Page 4: Table Of Contents

    Table of Contents Model Number Descriptions Condensate Drain Configuration ....6 ..28 Model Number Notes ....7 Filter Installation .
  • Page 5 Table of Contents Variable Air Volume Applications (Single Heating Season .....55 Zone VAV) ......44 Coil Cleaning .

  • Page 6: Model Number Descriptions

    Model Number Descriptions Digit 1 - Unit Type Digit 14 - Fresh Air Selection Digit 19 - Disconnect/Circuit Breaker (three-phase only) W Packaged Heat Pump No Fresh Air Dual Fuel Heat Pump Manual Outside Air Damper 0-50% No Disconnect/No Circuit Breaker Motorized Outside Air Damper Unit Mounted Non-Fused Digit 2 - Efficiency...

  • Page 7: Model Number Notes

    Model Number Descriptions Sensing Tube and Condensate exhaust. Do not order the return Drain Pan Overflow Switch air smoke detectors when using Clogged Filter Switch, Fan Failure this type of accessory. Switch, Discharge Air Sensing and Condensate Drain Pan Overflow 9.

  • Page 8: 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 9: System Input Devices & Functions

    General Information RLCI - ReliaTel™ LonTalk® Communication panel if the pressure differential across the filters is at least 0.5" w.c. The contacts will automatically open when the Interface (Optional) pressure differential across the filters decreases to This module is used when the application calls for an approximately 0.4"...

  • Page 10: High Pressure Control

    General Information manual reset required to restart the compressor. On dual It has dual temperature selection with programmable start compressor units only the affected compressor circuit is time capability. locked out. The occupied cooling set point ranges between 45 and 98 degrees Fahrenheit.
  • Page 11 General Information Fahrenheit or Celsius temperature display. Included with • Periodic checks and maintenance procedures must be the wireless zone sensor will be a receiver that is to be performed on the smoke detector to insure that it will mounted inside the unit, a mounting bracket, and a wire function properly.

  • Page 12: Pre-Installation

    Pre-Installation WARNING Fiberglass Wool! Exposition to glass wool fibers without all necessary PPE equipment could result in cancer, respiratory, skin or eye irritation, which could result in death or serious injury. Disturbing the insulation in this product during installation, maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic fibers known to the state of California to cause cancer through inhalation.

  • Page 13: Dimensions And Weights

    Dimensions and Weights Figure 1. Typical installation clearances for single & multiple unit applications WSC036-048H, W/DHC036H Units WSC060-120E/H, W/DHC048-060H Units RT-SVX23M-EN...
  • Page 14 Dimensions and Weights WARNING WARNING Heavy Objects! Improper Unit Lift! Failure to follow instructions below or properly lift unit Failure to properly lift unit could result in unit dropping could result in unit dropping and possibly crushing and possibly crushing operator/technician which could operator/technician which could result in death or result in death or serious injury, and equipment or serious injury, and equipment or property-only damage.
  • Page 15 Dimensions and Weights Figure 2. Rigging and center-of-gravity data (a),(b) Table 2. Factory installed options (fiops)/accessory net weights (lbs) WSC036H-048H, WSC060H, W/DHC036H W/DHC048-060H WSC072H-120E/H W/DHC120H Net Weight Net Weight Net Weight Net Weight Accessory 3 to 4 Tons 4 to 5 Tons 6 to 10 Tons 10 Tons 460V/575V IDM Transformer...
  • Page 16 Dimensions and Weights Figure 3. Heat pump - 3 to 4 tons standard efficiency, 3 Figure 6. Heat pump - 3 to 4 tons standard efficiency, 3 ton high efficiency ton high efficiency - unit clearance and roof opening Note: 2” electrical connection: single point power when heat installed (WSC, W/DHC) CLEARANCE TOP PANEL...
  • Page 17 Dimensions and Weights Figure 9. Heat pump - 3 to 4 tons standard efficiency, 3 Figure 11. Heat pump - 3 to 4 tons standard efficiency, 3 ton high efficiency - economizer, manual or ton high efficiency - swing diameter for motorized fresh air damper;...
  • Page 18 Dimensions and Weights Figure 14. Heat pumps - 5 to 10 tons standard efficiency, Figure 17. Heat pumps - 5 to 10 tons standard efficiency, 4 to 5 ton high efficiency - horizontal airflow 4 to 5 ton high efficiency - downflow duct supply and return connections field fabricated Note: Reference tabular information for duct clearance to combustible...
  • Page 19 Dimensions and Weights Figure 20. Heat pumps - 5 to 10 tons standard efficiency, Figure 23. Heat pump - 10 tons high efficiency 4 to 5 ton high efficiency - swing diameter for Note: 2" Electrical Connection: Single Point Power When Heat Installed. hinged door(s) option INDOOR TOP PANEL OUTDOOR TOP PANEL...

  • Page 20: Installation

    Installation Foundation Figure 27. Heat pumps - 5 to 10 tons standard efficiency, 4 to 5 ton high efficiency - horizontal airflow Horizontal Units supply and return If the unit is installed at ground level, elevate it above the snow line. Provide concrete footings at each support location with a “full perimeter”...

  • Page 21: Roof Curb

    Installation Figure 29. Heat pumps - 5 to 10 tons standard efficiency, WARNING 4 to 5 ton high efficiency - downflow airflow Combustible Materials! supply/return - through-the-base utilities 3 5/8” Failure to maintain proper clearance between the unit 92 MM 17 1/2”...

  • Page 22: Rigging

    Installation A Rigging illustration and Center-of-Gravity dimensional Figure 32. View for base to roof curb alignment data table is shown in the weights section. Refer to the WSC120E, W/DHC120H on 60 x 84 roof curb typical unit operating weights table before proceeding. 1.

  • Page 23: General Unit Requirements

    Installation • Install and connect a condensate drain line to the Figure 34. Fork lift pockets (W/DHC120H) evaporator drain connection. Note: Condensate Overflow Switch (if equipped) will not work if unit is not level or slightly sloped toward switch. Factory Installed Economizer •...

  • Page 24: Horizontal Discharge Conversion Wsc060H- 120E/H, W/Dhc048-120H

    Installation 4. Slide SUPPLY DUCT COVER into duct openings until Figure 37. Supply duct cover inward edge of duct cover engages with the 2 retaining clips on the duct flanges. Secure the outward edge of Supply Duct Cover each duct cover with 2 screws. Figure 36.

  • Page 25: Tco-A Instructions

    Installation TCO-A Instructions Figure 40. TCO-A location If the unit being installed is listed in the following table and is equipped with the corresponding model number of factory installed electric heater package in the table, the limit control TCO-A must be replaced with the extra limit control shipped in the heater compartment.

  • Page 26: Air-Fi™ Wireless Communication Interface

    Installation Air-Fi™ Wireless Communication Figure 41. Downflow view Interface The factory installed wireless communications interface is installed in the downflow discharge position. If a unit is to be converted to horizontal discharge, the following conversion must be performed: 1. If the unit has an economizer, it must be pulled out in the operating position.

  • Page 27: Main Electrical Power Requirements

    Installation Main Electrical Power 3. Using pipe sealant, attach the 90° elbow to the gas supply line. Requirements 4. Disconnect the 5" pipe nipple and union from the “Through-the-Base Gas” kit assembly. 5. Using pipe sealant, attach the 6½” nipple and gas WARNING shutoff assembly to the 90°...

  • Page 28: Electric Heat Requirements

    Installation Electric Heat Requirements To convert drain condensate through-the-base of unit: • Verify that the power supply complies with the electric heater specifications on the unit and heater nameplate. 1. Remove evaporator access panel and supply air access panels. • Inspect the heater junction box and control panel;...

  • Page 29: Filter Installation

    Installation Care must be taken so the wire does not catch on the otherwise, connect at the Compressor Contactor bottom of indoor coil or any protrusion. (CC1). Refer to the customer connection diagram that is shipped with the unit for specific termination points. Note: When reversing the drain pan, on some units, the condensate overflow switch will need to be moved 2.

  • Page 30: Field Installed Control Wiring

    Installation Figure 48. WSC120E, W/DHC120H 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. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. The transformer is located in the control panel.
  • Page 31 Installation when interconnecting the DC binary output devices Figure 50. ReliaTel™ refrigeration module and the system components utilizing a DC analog input/output signal to the unit. Note: Resistance in excess of 2.5 ohms per conductor can cause deviations in the accuracy of the controls. 2.
  • Page 32 Installation Figure 51. Customer control low voltage routing (all units except W/DHC120H) REFRIGERATION COMMUNICATION COMMUNICATION REFRIGERATION MODULE INTERFACE MODULE INTERFACE UNPOWERED CONVENIENCE OUTLET ReliaTel™ CONVENTIONAL WIRING ReliaTel™ ROUTE FIELD WIRING AS SHOWN TBU WIRING SECURE FIELD AND SECURE WITH 2 WIRE TIES ROUTE FIELD WIRING AS SHOWN INSTALLED WIRING AND SECURE WITH 3 WIRE TIES...

  • Page 33: Space Temperature Averaging (Reliatel™ Only)

    Installation Figure 53. ReliaTel™ (with TBUE) control customer wire routing (W/DHC120H) Space Temperature Averaging (ReliaTel™ only) Space temperature averaging is accomplished by wiring a number of remote sensors in a series/parallel circuit. Using the BAYSENS016* or BAYSENS077*, at least four sensors are required to accomplish space temperature averaging.
  • Page 34 Installation Figure 54. Examples Note: Wiring pin numbers are for reference only. There are multiple smoke detector systems that could have differently numbered pins. For correct wiring details, please refer to the specific smoke detector literature that accompanied this unit. RT-SVX23M-EN...
  • Page 35 Installation Figure 55. Typical field wiring diagrams for optional controls BA YSENS075* BA YSENS075* BA YSENS108* BA YSENS106* BA YSENS110* BA YSENS119* BAYSENS073* BAYSENS074* BAYSENS075* ASYSTAT669A OPTIONAL REMOTE SENSOR RT-SVX23M-EN...
  • Page 36 Installation Table 8. Iron pipe size (SI) millimeters Table 6. Temperature versus resistance (temperature vs. resistance is negative) Iron Pipe Size (SI) Millimeters Length of Pipe 15 mm 20 mm 25 mm 32 mm 40 mm Temperature (Meters) Pipe Pipe Pipe Pipe Pipe...

  • Page 37: Pre-Start

    Pre-Start Use the checklist provided below in conjunction with the 100 X AV - VD “General Unit Requirements” checklist to ensure that the % Voltage Imbalance = where; unit is properly installed and ready for operation. WARNING Volt 1 + Volt 2 + Volt 3 AV (Average Voltage) = Hazardous Voltage w/Capacitors! Failure to disconnect power and discharge capacitors...

  • Page 38: Compressor Crankcase Heaters

    Pre-Start • Turn the field supplied disconnect switch that provides Close the main power disconnect switch and the unit power to the main power terminal block or to the mounted disconnect switch, if applicable. “Line” side of the optional factory mounted disconnect ReliaTel™...

  • Page 39: Test Modes

    Pre-Start Table 9. Service test guide for component operation Multi-Speed Fan Test Step Mode Econ Comp1 Comp 2 Heat 1 Heat 2 Ohms Output Minimum Position Setpoint 0% 2.2K Minimum Selectable Ventilation Economizer Test Open 3.3K Open Minimum Cool Stage 1 4.7K Position Minimum...
  • Page 40 Pre-Start Table 11. Heat Pump with Single Zone VAV Fan Control CV Fan Speed Test Step Mode Heat 1 Heat 2 SOV1 Econ S Fan Command Fan On Min. Min Speed Econ 100% Min Speed Cool 1 Norm Norm Min. 57% or 70% Cool 2 Norm...

  • Page 41: Unit Start-Up

    Unit Start-Up Sequence of Operation Units are offered with two control options, the low pressure control (LPC2), high pressure control electromechanical or ReliaTel™. (HPC2) and discharge line thermostat (TDL 2) are closed. When the CC2 contacts close, compressor (CPR2) starts to Note: Refer to the unit nameplate: If the 9th digit of the maintain the zone temperature to within ±...

  • Page 42: Reliatel™ Control Evaporator Fan Operation (For Cooling Only Units)

    Sequence of Operation Multi-Speed Indoor Motor When the unit is equipped with the optional clogged filter switch, wired between terminals J7-3 and J7-4 on the Note: Multi-speed indoor fan available only on 6, 7.5 (dual ReliaTel™ options module (RTOM), the RTRM produces an compressor) &...

  • Page 43: Supply Air Static Pressure Limit

    Sequence of Operation The supply fan will accelerate or decelerate as required to is low and the building cooling load is low, the supply air maintain the supply static pressure setpoint. setpoint can be raised, thereby preventing subcooling of critical zones. This reset can lower usage of primary Supply Air Static Pressure Limit cooling and result in a reduction in primary cooling energy usage There are two user-defined parameters that are...

  • Page 44: Variable Air Volume Applications (Single Zone Vav)

    Sequence of Operation energized for at least 6 minutes to drive all boxes open, the potentiometer (DACR) adjacent to the RTOM with a supply fan is commanded to full speed, and full heat (gas range of 40- 70°F . or electric) is energized. When MWU is activated the •...

  • Page 45: Reliatel™ Control Dehumidification

    Sequence of Operation Dehumidification Coil Purge Cycle modes (Economizer Only, Economizer +1st Stage Cooling, or Economizer + 1st/2nd Stage Cooling). On multiple circuit units with dehumidification/reheat The ECA continues to modulate the economizer damper configured, a purge cycle will be active for compressor open/closed to keep the mixed air temperature that is reliability.

  • Page 46: Economizer Set-Up

    Sequence of Operation ReliaTel™ Control Heating Operation (for relay (F) is energized and allows mechanical cooling operation. Cooling Only Units) When the unit is equipped with the optional fan failure When the system switch is set to the “Heat” position and switch, wired between terminals J7-5 and J7-6 on the the zone temperature falls below the heating setpoint RTOM, the RTRM will stop all cooling functions and...

  • Page 47: Drain Pan Condensate Overflow Switch (Optional)

    Sequence of Operation 1. Opening for 3 seconds and closing the main power disconnect switch. 2. Switching the “Mode” switch on the zone sensor to “OFF” and then to the desired position. 3. Allowing the ignition control module to reset automatically after one hour.

  • Page 48: Sequence Of Operation - Heat Pumps

    Sequence of Operation - Heat Pumps Heating Operation temperature (ODT) + 27ºF . The defrost termination temperature (DTT) will typically be between 37ºF and 52ºF . When the system switch is set to the “Heat” MODE, the Emergency Heat Operation RTRM energizes relay (K3).

  • Page 49: Units With Belt Drive Indoor Fan

    Sequence of Operation - Heat Pumps The indoor fan motors are specifically designed to operate • To Increase Fan RPM; Loosen the pulley adjustment set within the BHP parameters listed in the fan performance screw and turn sheave clockwise. tables of the unit service facts. •...

  • Page 50: Reliatel™ Units Equipped With Direct Drive Indoor Plenum Fan (Optional Except For 10 Ton Units)

    Sequence of Operation - Heat Pumps To adjust airflow on a 17 Plus/WHC/DHC unit, the Service Indoor Fan Speed output to the direct drive plenum fan. If Test mode must be used for accurate results. Additionally, installed, before starting the SERVICE TEST disable the airflow adjustments should be made in either “Cool Stage Economizer by disconnecting the 4 pin power connector 2”...

  • Page 51: Return Air Smoke Detector

    Sequence of Operation - Heat Pumps Economizer Start-Up table value), change indoor fan speed and repeat Step Step • Stop the SERVICE TEST, turn the main power WARNING disconnect switch to the “Off” position and reconnect Live Electrical Components! Economizer 4-pin power connector if disconnected for this procedure.

  • Page 52: Compressor Start-Up

    Sequence of Operation - Heat Pumps Compressor Start-Up WARNING Live Electrical Components! WARNING Failure to follow all electrical safety precautions when Live Electrical Components! exposed to live electrical components could result in Failure to follow all electrical safety precautions when death or serious injury.

  • Page 53: Final System Setup

    Sequence of Operation - Heat Pumps 1. Clamp an amp meter around one of 1 stage heater power wires at the heater contactor. 2. Momentarily jump across the Test 1 & Test 2 terminals on LTB one additional time if continuing from previous component start-up or until the desired start-up component Test is started.

  • Page 54: Maintenance

    Maintenance Once the new belts are installed, using a Browning or Gates tension gauge (or equivalent) illustrated in WARNING Figure 58, p. 54; 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 55: Monthly Maintenance

    Maintenance according to the instructions described in “Coil Table 18. Belt tension measurement and deflection Cleaning” later in this section. ranges • Manually rotate the condenser fan(s) to ensure free Deflection Force (Lbs.) movement and check motor bearings for wear. Verify Super Steel Cable that all of the fan mounting hardware is tight.

  • Page 56: Coil Cleaning

    Maintenance Coil Cleaning 3. Straighten any bent coil fins with a fin comb. Mix the detergent with water according to the Regular coil maintenance, including annual cleaning, manufacturer’s instructions. If desired, heat the solution to enhances the unit’s operating efficiency by minimizing: 150°F maximum to improve its cleansing capability.

  • Page 57: Final Process

    Maintenance Final Process Wiring Diagram Numbers (from unit control panel) _____________________________________________________ For future reference, you may find it helpful to record the Schematics unit data requested below in the blanks provided. _____________________________________________________ Complete Model Number Connections _____________________________________________________ _____________________________________________________ Unit Serial Number _____________________________________________________ Table 19.

  • Page 58: Troubleshooting

    Troubleshooting 4. If a System failure is indicated, recheck Step 1 Step 2. If the LED is not lit in Step 1, and 24 VAC is present WARNING Step 2, the RTRM has failed. Replace the RTRM. Hazardous Service Procedures! 5.

  • Page 59: Resetting Cooling And Heating Lockouts

    Troubleshooting Zone Sensor LED 4 (Service) Test Mode = voltage alternates between 32 VDC & 0.75 “On” indicates a clogged filter. Heat Failure “Off” during normal operation. Measure the voltage between terminals J6-7 & J6-6. “Flashing” indicates an evaporator or condensate overflow switch failure.

  • Page 60: Zone Temperature Sensor (Zts) Service Indicator

    Troubleshooting Zone Temperature Sensor (ZTS) Table 20. Cooling (CSP) and heating setpoint (HSP) Zone Nominal ZTEMP Nominal CSP or Service Indicator Temperature Resistance HSP Resistance 50°F 10.0 C° 19.9 K-Ohms 889 Ohms The ZSM SERVICE LED is a generic indicator, that will 55°F 12.8 C°...

  • Page 61: Programmable & Digital Zone Sensor Test

    Troubleshooting Programmable & Digital Zone Unit Operation without a Zone Sensor Sensor Test This procedure is for temporary operation only. The economizer and condenser fan cycling functions are Testing Serial Communication Voltage disabled. WARNING WARNING Live Electrical Components! Hazardous Voltage! Failure to follow all electrical safety precautions when Failure to disconnect power before servicing could exposed to live electrical components could result in...
  • Page 62 Troubleshooting Table 21. Fault detection and diagnostic codes Primary Fault Codes Information Code Temp Mixed Air Outdoor Pressure Space Unit Economizer RTEM Sensor Airflow Unit Fails Damper Temp Temp Dead band Press Dead Economizing Failures Actuator Comm Fail Sensor Fail Position % Sensor Sensor...

  • Page 63: Mixed Air Temperature Low Limit Diagnostic

    Troubleshooting Unit Economizer Control (ECA) Refer to RT-SVB90*-EN for a comprehensive troubleshooting guide. Troubleshooting ReliaTel Control Verify Economizer Status by Economizer Actuator (ECA) LED indicator: OFF: No Power or Failure ON: Normal, OK to Economize Slow Flash: Normal, not OK to Economize Fast Flash - 1/2 Second On / 2 Seconds Off: Error Code: Communications Failure...

  • Page 64: Wiring Diagrams

    Wiring Diagrams 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 23. Unit wiring diagram numbers Schematic Type Voltage Drawing Number Description 208-230, Control 4366-1007 6 to 7.5 Ton Heat Pump...
  • Page 65 Wiring Diagrams Table 23. Unit wiring diagram numbers (continued) Schematic Type Voltage Drawing Number Description Connection - 208-600V 4366-1096 6.0 KW - 208-600v/60hz/3ph BAYHTRR306*, BAYHTRR406*, BAYHTRRW06* Electric Heat Connection - 9.0 & 18 KW - 480-600v/60hz/3ph BAYHTRS409*, BAYHTRSW09*, BAYHTRS418*, 208-600V 4366-1097 Electric Heat BAYHTRT418*, BAYHTRSW18*, BAYHTRTW18*...

  • Page 66: Limited Warranty

    Limited Warranty Heat Pump WCD, WCH, WSC, WHC and where the end purchaser uses the product for other than personal, family or household purposes. DHC (Parts Only) **A 5 year limited warranty is provided for the optional Models Less Than 20 Tons for Commercial "Low Leak"...
  • Page 68 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® and Trane®—work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables;...

This manual is also suitable for:

Precedent wsc048hPrecedent wsc072ePrecedent wsc090ePrecedent wsc092hPrecedent wsc072hPrecedent wsc090h ... Show all

Table of Contents