Carrier RAV090 Installation Instructions Manual
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Carrier RAV090 Installation Instructions Manual

Carrier RAV090 Installation Instructions Manual

Single package rooftop cooling only with r-410a refrigerant
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . 1
Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 10
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 1 - Plan for Unit Location . . . . . . . . . . . . . 10
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . 10
Step 4 - Provide Unit Support . . . . . . . . . . . . . 10
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
Step 5 - Field Fabricate Ductwork . . . . . . . . . . 12
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . 12
Ductwork (when required) . . . . . . . . . . . . . . . 13
Step 8 - Install Outside Air Hood . . . . . . . . . . . 14
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
RAV090-150
Single Package Rooftop
Cooling Only
with R-410A Refrigerant
Installation Instructions
Page
RAV-090-150-01SI Rev. C
EconoMi$er X (Factory Option) . . . . . . . . . . . . 27
Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . 39
Step 12 - Install Accessories . . . . . . . . . . . . . . 40
Step 13 - Fan Speed Set Up . . . . . . . . . . . . . . . 40
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical
components. Only trained and qualified service personnel
should install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance
functions of cleaning coils and filters and replacing filters. All
other operations should be performed by trained service
personnel. When working on air-conditioning equipment,
observe precautions in the literature, tags and labels
attached to the unit, and other safety precautions that may
apply.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
fire extinguisher available for all brazing operations.
It is important to recognize safety information. This is the
safety-alert symbol
. When you see this symbol on the
unit and in instructions or manuals, be alert to the potential
for personal injury.
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the
6-22

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Summary of Contents for Carrier RAV090

  • Page 1: Table Of Contents

    RAV090-150 Single Package Rooftop Cooling Only with R-410A Refrigerant Installation Instructions • LOW-VOLTAGE CONTROL CONNECTIONS CONTENTS • HOT GAS RE-HEAT CONTROL CONNECTIONS Page • TYPICAL UNIT WIRING DIAGRAMS SAFETY CONSIDERATIONS ....1 EconoMi$er X (Factory Option) .

  • Page 2: Model Number Nomenclature And Dimensions

    Rated Indoor Airflow Table 1 lists the rated indoor airflow used for the AHRI efficiency rating for the units covered in this document. Table 1 — Rated Indoor Airflow MODEL NUMBER RATED INDOOR AIRFLOW (CFM) RAV090 2650 RAV102 3400 RAV120 3500...

  • Page 3: Model Series

    A = Economizer control for EconoMi$er IV and all others (except factory-installed EconoMi$er X) B = Economizer control for factory-installed for EconoMi$er X Economizer Control Fig. 1 — RAV090-150 Model Number Nomenclature (Example) RAV-090-150-01SI Rev. C Specifications subject to change without notice.
  • Page 4 Fig. 2 — RAV090-120 Unit Dimensional Drawing...
  • Page 5 Fig. 2 — RAV090-120 Unit Dimensional Drawing (cont)
  • Page 6 Fig. 2 — RAV090-120 Unit Dimensional Drawing (cont)
  • Page 7 Fig. 3 — RAV150 Unit Dimensional Drawing...
  • Page 8 Fig. 3 — RAV150 Unit Dimensional Drawing (cont)
  • Page 9 Fig. 3 — RAV150 Unit Dimensional Drawing (cont)

  • Page 10: Installation

    INSTALLATION 8. Make electrical connections 9. Install other accessories Jobsite Survey PAD-MOUNTED INSTALLATION Complete the following checks before installation. 1. Prepare pad and unit supports 1. Consult local building codes and the NEC (National 2. Check and tighten the bottom condensate drain con- Electrical Code) ANSI/NFPA 70 for special installa- nection plug tion requirements.
  • Page 11 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 12: Slab Mount (Horizontal Units Only)

    FOR UNITS WITH ACCESSORY ELECTRIC HEATERS All installations require a minimum clearance to combustible surfaces of 1-in. (25 mm) from duct for first 12-in. (305 mm) away from unit. Outlet grilles must not lie directly below unit discharge. WARNING PERSONAL INJURY HAZARD Failure follow this...

  • Page 13: Step 7 - Convert To Horizontal And Connect

    Detail "A" 36"-54" Required Before Placing Unit On Roof Curb (914-1371) Spreader Bars Duct End "C" Side "A" See Detail "A" DIMENSIONS UNIT MAX WEIGHT RAV090 1232 88.0 2235 40.0 1015 41.5 1055 RAV102 1353 88.0 2235 49.5 1255 49.5...

  • Page 14: Step 8 - Install Outside Air Hood

    Step 8 — Install Outside Air Hood ECONOMIZER HOOD SETUP NOTE: If the power exhaust accessory is to be installed on ECONOMIZER HOOD PACKAGE REMOVAL the unit, the hood shipped with the unit will not be used and FACTORY OPTION) must be discarded.

  • Page 15: Step 9 - Install External Condensate Trap And Line

    All units must have an external trap for condensate drain- age. Install a trap at least 4-in. (102 mm) deep and protect against freeze-up. If drain line is installed downstream from the external trap, pitch the line away from the unit at 1-in.

  • Page 16: Field Power Wiring Connections

    FIELD POWER WIRING CONNECTIONS 6. Measure from the tip of the shaft to the top surface of the black pointer; the measurement should be 3.75 to Field power wires are connected to the unit at line-side 3.88-in. (95 to 99 mm). pressure lugs on compressor contactor C and indoor fan 7.

  • Page 17: Convenience Outlets

    Provide a ground-fault and short-circuit over-current protec- tion device (fuse or breaker) per NEC Article 440 (or local Convenience codes). Refer to unit informative data plate for MOCP (Max- Outlet GFCI PWD-CO Fuse imum Over-current Protection) device size. Switch All units except 208/230-v units are factory wired for the voltage shown on the nameplate.

  • Page 18: All Units

    ALL UNITS GFCI Receptacle Cover — While-In-Use Test the GFCI receptacle by pressing the TEST button on Not Included Weatherproof the face of the receptacle to trip and open the receptacle. Check for proper grounding wires and power line phasing if the GFCI receptacle does not trip as required.

  • Page 19: Units Without Thru-Base Connections

    THERMOSTAT High Voltage Select an approved accessory thermostat. When electric Conduit Low Voltage Connector heat is installed in the RAV unit, the thermostat must be ca- Conduit Connector pable of energizing the G terminal (to energize the Indoor Fan Contactor) whenever there is a space call for heat (en- ergizing the W1 terminal).

  • Page 20: Unit Without Thru-Base Connection Kit

    UNIT WITHOUT THRU-BASE CONNECTION KIT Main Optional Single Center Vane Axial Pass the thermostat control wires through the hole provided Control Factory-Installed Point Post Indoor Fan Disconnect System in the corner post; then feed the wires through the raceway built into the corner post to the control box. Pull the wires over to the terminal strip on the upper-left corner of the Unit Control Board.

  • Page 21: Low-Voltage Control Connections

    HOT GAS RE-HEAT CONTROL CONNECTIONS Control Wiring Hot Gas Re-Heat – Space RH Controller NOTE: The Hot Gas Re-Heat system is a factory installed option. The Hot Gas Re-Heat dehumidification system requires a field-supplied and field-installed space relative humidity con- trol device.
  • Page 22 Programmable Thermostat Unit Control Board Thermostat Connections O/W2/B SRTN Fig. 35 — Typical Rooftop Unit with Hot Gas Re-Heat Dehumidification System and Programmable Thermostat RAV-090-150-01SI Rev. C Specifications subject to change without notice.
  • Page 23 Fig. 36 — Typical Control Wiring Diagram, Electro-Mechanical with W7220 (RAV090-120 230/460/575-3-60 Unit Shown)
  • Page 24 Fig. 37 — Typical Power Wiring Diagram, for Units with Electro-Mechanical Controllers – RAV090-120, 230/460-3-60 Units Shown RAV-090-150-01SI Rev. C Specifications subject to change without notice.
  • Page 25 Fig. 38 — Typical Control Wiring Diagram, Electro-Mechanical with W7220 – RAV150, 230/460/575-3-60 Units Shown...
  • Page 26 Fig. 39 — Typical Power Wiring Diagram, for Units with Electro-Mechanical Controller RAV150, 230/3/60 Unit Shown RAV-090-150-01SI Rev. C Specifications subject to change without notice.

  • Page 27: Economi$Er X (Factory Option)

    EconoMi$er X (Factory Option) User Interface Provides status for normal operation, setup parameters, The EconoMi$er X system is an expandable economizer ® checkout tests, and alarm and error conditions with a 2-line control system, which includes a W7220 economizer mod- 16 character LCD display and four button keypad.

  • Page 28: Economizer Module Wiring Details

    Storage Temperature Table 5 — Economizer Module - Right Hand Terminal –40°F to 150°F (–40°C to 65°C) Blocks Shipping Temperature –40°F to 150°F (–40°C to 65°C) LABEL TYPE DESCRIPTION Top Right Terminal Blocks Relative Humidity AUX2 I 24 vac IN The first terminal is not used.

  • Page 29: Co2 Sensor Wiring

    Keypad Table 6 — HH57AC081 Sensor Wiring Terminations Use the four navigation buttons (see Fig. 44) to scroll through the menus and menu items, select menu items, TERMINAL and to change parameter and configuration settings. TYPE DESCRIPTION NUMBER LABEL S-BUS Communications S-BUS S-BUS...

  • Page 30: Setup And Configuration

    IMPORTANT: During setup, the economizer module IMPORTANT: Table 8 illustrates the complete hierarchy. is live at all times. Your menu parameters may be different depending on your configuration. The setup process uses a hierarchical menu structure that For example, if you do not have a DCV (CO ) sensor, is easy to use.
  • Page 31 Table 8 — W7220 Menu Structure* PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT † FIRST STAGE COOLING DEMAND (Y1–IN) ECONO AVAIL YES/NO YES = economizing available; the system can use outside air for free cooling when required FIRST STAGE COOLING RELAY OUTPUT ECONOMIZING YES/NO...
  • Page 32 Table 8 — W7220 Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT † MECH COOL ON Displays stage of mechanical cooling that is active. 0, 1, or 2 HEAT STAGES ON Displays the stage of heat pump heating that is active. STATUS SUPPLY FAN SPEED (cont)
  • Page 33 Table 8 — W7220 Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT † 0°F to 50°F ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR ERV OAT SP 32°F (–18°C to 10°C); TEMPERATURE SETPOINT †† increment by 1°F Only displayed when AUX1 O = ERV Exhaust fan set point for single speed units.
  • Page 34 Table 8 — W7220 Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT † COOLING STAGE 3 DELAY 0 min, 5 min, Delay after stage 2 cool has been active. Turns on second stage of 15 min, then cooling when economizer is first stage and mechanical cooling is STG3 DLY 2.0h...
  • Page 35 Table 8 — W7220 Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT † DISCHARGE AIR S-BUS SENSOR ERROR DA SYLK T ERR Discharge air sensor has failed or become disconnected - check wiring then replace sensor if the alarm continues. OUTSIDE AIR TEMPERATURE SENSOR ERROR OA SENS T ERR Outdoor air temperature sensor has failed or become disconnected...

  • Page 36: Standard Or Single Speed Fan Operation

    The W (heating mode) is not controlled by the W7220 but it requires the status to know where to position the OA damp- FAN TYPE = 1 SPEED is not used on RAV090-150 units. er for minimum position for the fan speed.

  • Page 37: 2Sp H/C (2 Speed Heat/Cool) Speed Fan Operation

    The W7220 calculates the enthalpy and dew point using the OA temperature and humidity input from the OA enthalpy FAN TYPE = 2SP H/C is not used on RAV090-150 units sensor. When the OA temperature, OA humidity and OA dew point are all below the selected boundary, the econo-...

  • Page 38: Checkout

    CHECKOUT To perform a Checkout test: 1. Scroll to the desired test in the Checkout menu using Inspect all wiring connections at the economizer module’s the ▲ and ▼ buttons. terminals, and verify compliance with the installation wiring 2. Press the (Enter) button to select the item.

  • Page 39: Smoke Detectors

    Smoke Detectors RETURN AIR Smoke detectors are available as factory-installed options SMOKE DETECTOR on RAV models. Smoke detectors may be specified for sup- (AS SHIPPED) ply air only, for return air without or with economizer, or in combination of supply air and return air. Return-air smoke detectors are arranged for vertical return configurations on- ly.

  • Page 40: Step 11 - Adjust Factory-Installed Options

    Step 11 — Adjust Factory-Installed Options SMOKE DETECTORS Smoke detector(s) will be connected at the Unit Control Board (UCB), at terminals marked “Smoke Shutdown.” ECONOMI$ER X OCCUPANCY SWITCH If external occupancy control is desired, connect a time clock or remotely controlled switch (closed for Occupied, open for Unoccupied sequence) at terminals marked OCCUPANCY.
  • Page 41 ESP in. wg Factory Setting: Calculator 9.0 V 3000 Field Setting: 3250 Record field setting here 3500 3750 4000 Switch Range: 4250 4500 4.1 - 7.5 4750 10.0 6.9 - 8.7 5000 7.7 - 10.0 Field Accessories: Economizer * Overlap in A, B, C switch range designed for maximum field adjustment potential.
  • Page 42 © 2022 Carrier Lewisburg, TN 37091 USA Replaces: New RAV-090-150-01SI Rev. C Specifications are subject to change without notice.

  • Page 43: Preliminary Information

    START-UP CHECKLIST RAV090-150 SINGLE PACKAGE ROOFTOP ELECTRIC COOLING UNITS (Remove and use for job file) NOTE: To avoid injury to personnel and damage to equipment or property when completing the procedures listed in this start-up checklist, use good judgment, follow safe practices, and adhere to the safety considerations/information as outlined in preceding sec- tions of this Installation Instruction document.
  • Page 44 8. Open W1 restore unit to dehumid mode (Y/N) _____ 9. Open humidistat input compressor and outdoor fan stop; LSV and DSV solenoids de-energized (Y/N) _____ 10. Restore setpoints for thermostat and humidistat (Y/N) _____ © 2022 Carrier Lewisburg, TN 37091 USA Replaces: New RAV-090-150-01SI Rev.

This manual is also suitable for:

Rav102Rav120Rav150

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