Carrier RHV090-120 Installation Instructions Manual
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Carrier RHV090-120 Installation Instructions Manual

Carrier RHV090-120 Installation Instructions Manual

Single package rooftop heat pump with r-410a refrigerant and x-vane fan technology
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . 1
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 10
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 1 - Plan for Unit Location . . . . . . . . . . . 10
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . 10
Step 4 - Provide Unit Support . . . . . . . . . . . . 10
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
HEATERS
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . 12
Ductwork (when required) . . . . . . . . . . . . . . 13
and Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
RHV090-120
Single Package Rooftop Heat Pump
with R-410A Refrigerant
and X-Vane Fan Technology
Installation Instructions
Page
RHV-090-120-01SI
• INPUTS
• 2SP H/C (2 SPEED HEAT/COOL) SPEED FAN
Controller Options . . . . . . . . . . . . . . . . . . . . . . 39
Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . 39
Step 12 - Install Accessories . . . . . . . . . . . . 40
Step 13 - Fan Speed Set Up . . . . . . . . . . . . . 41
Typical Unit Piping . . . . . . . . . . . . . . . . . . . . . . 43
Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . 47
START-UP CHECKLIST. . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock or other conditions which may cause personal injury
or property damage. Consult a qualified installer, service
agency, or your distributor or branch for information or
assistance. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this
product. Refer to the individual instructions packaged with
the kits or accessories when installing.
4-22

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Summary of Contents for Carrier RHV090-120

  • Page 1: Table Of Contents

    RHV090-120 Single Package Rooftop Heat Pump with R-410A Refrigerant and X-Vane Fan Technology Installation Instructions CONTENTS • SINGLE POINT BOXES WITHOUT FUSES • LOW-VOLTAGE CONTROL CONNECTIONS Page • CONTROL AND POWER WIRING DIAGRAMS SAFETY CONSIDERATIONS ....1 EconoMi$er X (Factory-Installed Option) .

  • Page 2: Model Number Nomenclature And

    There may be more than one disconnect switch. Tag all disconnect locations to alert others not to See Fig. 1 for RHV090-120 model number nomenclature. restore power until work is completed. See Fig. 2 and 3 (pages 4-9) for unit dimensional drawings.
  • Page 3 See Specification Sheet for actual field-installed heater capacities. See Specification Sheet for details. Combinations of factory installed options are available, see Specifications Sheet for details. Fig. 1 — RHV090-120 Model Number Nomenclature (Example) RHV-090-120-01SI Specifications subject to change without notice.
  • Page 4 RHV090 RHV102 Fig. 2 — RHV090-102 Unit Dimensional Drawing...
  • Page 5 RHV090 RHV102 Fig. 2 — RHV090-102 Unit Dimensional Drawing (cont)
  • Page 6 Fig. 2 — RHV090-102 Unit Dimensional Drawing (cont)
  • Page 7 RHV120 Fig. 3 — RHV120 Unit Dimensional Drawing...
  • Page 8 RHV120 Fig. 3 — RHV120 Unit Dimensional Drawing (cont)
  • Page 9 Fig. 3 — RHV120 Unit Dimensional Drawing (cont)

  • Page 10: Installation

    INSTALLATION 4. Prepare bottom condensate drain connection to suit planned condensate line routing (refer to Install Jobsite Survey External Condensate Trap and Line on page 15 for details) Complete the following checks before installation. 5. Rig and place unit 1. Consult local building codes and the NEC (National 6.
  • Page 11 4 9/16" ROOFING MATERIAL [115.5] (FIELD SUPPLIED) THIS DOCUMENT AND THE INFORMATION CONTAINED THEREIN IS PROPRIETARY TO CARRIER CORPORATION AND SHALL NOT BE USED OR DISCLOSED TO OTHERS, IN WHOLE OR IN PART, SUPPLY AIR RETURN AIR RIGID INSULATION 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...

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

    "B" Place All Seal Strip In Place Detail "A" 36"-54" Required Before Placing Unit On Roof Curb (914-1371) Spreader Bars Duct End "C" Side "A" See Detail "A" DIMENSIONS MAX WEIGHT UNIT RHV090 1314 88.0 2235 49.5 1255 49.5 1255 RHV102 1341 88.0...

  • 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

    Minimum Pitch 1" (25 mm) Per Base Rail 10' (3m) of Line 3" (76 mm) Open Divider Vent Outside See Note To Roof Hood Drain Cleanable Filter Aluminum Roof Filter Drain Plug Curb Barometric NOTE: Trap should be deep enough to offset maximum unit static Relief difference.

  • Page 16: Field Power Wiring Connections

    NOTE: TEST LEADS - Unit may be equipped with short Units Without Non-Fused Disconnect Option leads (pigtails) on the field line connection points on contac- tor C or optional disconnect switch. These leads are for fac- tory run-test purposes only; remove and discard before connecting field power wires to unit connection points.

  • Page 17: Units Without Factory-Installed Non-Fused Disconnect

    Two types of convenience outlets are offered on RHV mod- els: Non-powered and unit-powered. Both types provide a 125-volt GFCI (ground-fault circuit-interrupter) duplex receptacle rated at 15-A behind a hinged waterproof access cover, located on the end panel of the unit. See Fig. 21. Convenience Outlet GFCI PWD-CO Fuse...

  • Page 18: Factory Option Thru-Base Connections

    GFCI Receptacle Cover — While-In-Use Not Included Weatherproof Gasket Baseplate For GFCI Receptacle Fig. 23 — Weatherproof Cover Installation UNIT CONNECT PRIMARY TRANSFORMER VOLTAGE CONNECTIONS TERMINALS Non-Powered Convenience Outlet L1: RED +YEL H1 + H3 This type requires the field installation of a general- 208, 230 L2: BLU + GRA H2 + H4...

  • Page 19: Units Without Thru-Base Connections

    FIELD CONTROL WIRING NOTE: Take care not to damage the gasket, as it is reused RHV090-120 units requires an external temperature control in the following step. device. This device can be a thermostat (field-supplied) or a 3. Place the gasket over the embossed area in the...

  • Page 20: Unit Without Thru-Base Connection Kit

    If the thermostat contains a logic circuit requiring 24-v Raceway power, use a thermostat cable or equivalent single leads of different colors with minimum of seven leads. If the thermo- stat does not require a 24-v source (no “C” connection re- quired), use a thermostat cable or equivalent with minimum of six leads.
  • Page 21 Fig. 30 — Defrost Control Board Location — RHV090-102 Electro-Mechanical Units Shown Table 4 — RHV Defrost Board I/O and Jumper Configurations POINT NAME TYPE OF I/O CONNECTION PIN NUMBER UNIT CONNECTION NOTE INPUTS G Fan DI, 24 vac P2-3 CTB-G Y1 Cool 1 DI, 24 vac...

  • Page 22: Electric Heaters

    DFT opens or the 10 minute defrost cycle limit is reached. If Main the controlling DFT is open when this mode is initiated, the Optional Single Center Vane Axial Control Factory-Installed Point Post Indoor Fan Defrost cycle will run for 30 seconds. Both modes end at the Disconnect System end of the Defrost cycle.

  • Page 23: Single Point Boxes Without Fuses

    Control Wiring TRAN 1 Foam Power Heater Heater Wiring Relay Mounting Screws BRN BRN Fig. 35 — Typical Single Point Installation Field Connections SINGLE POINT BOXES WITHOUT FUSES Elec Htr Unit heater applications not requiring supplemental fuses require a special single point box without any fuses. The accessory single point boxes contain a set of power taps and pigtails to complete the wiring between the single point box and the unit’s main control box terminals.
  • Page 24 Fig. 37 — Typical Control Wiring Diagram, Electro-Mechanical Controller with W7220 (RHV090-102 230/460/575-3-60 Shown)
  • Page 25 Fig. 38 — Typical Control Wiring Diagram, Electro-Mechanical Controller with W7220 (RHV120 230/460/575-3-60 Shown)
  • Page 26 Fig. 39 — Typical RHV090-102 Power Wiring Diagram, 230/460V-3-60 Shown RHV-090-120-01SI Specifications subject to change without notice.
  • Page 27 Fig. 40 — Typical RHV120 Power Wiring Diagram, 230/460V-3-60 Shown RHV-090-120-01SI Specifications subject to change without notice.

  • Page 28: Economi$Er X (Factory-Installed Option)

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

  • Page 29: Economizer Module Wiring Details

    Storage Temperature: Table 6 — Economizer Module — Left Hand –40°F to 150°F (–40°C to 65°C) Terminal Blocks Shipping Temperature: LABEL TYPE DESCRIPTION –40°F to 150°F (–40°C to 65°C) Top Left Terminal Block Relative Humidity: 20k NTC Mixed Air Temperature Sensor (Polarity 5% to 95% RH non-condensing and COM Insensitive Connection)

  • Page 30: Co2 Sensor Wiring

    Sensor (Hot) Black Yellow Analog Brown – Orange Green Switch Power Supply. Provide Disconnect Label Means and Overload Protection As Required. Fig. 44 — CO Sensor Wiring Switches INTERFACE OVERVIEW This section describes how to use the EconoMi$er ® X user interface for: •...

  • Page 31: Menu Structure

    3. Use the ▲ and ▼ buttons to scroll to the desired IMPORTANT: Table 10 illustrates the complete hierarchy. parameter. Your menu parameters may be different depending on 4. Press the (Enter) button to display the value of your configuration. the currently displayed item.
  • Page 32 Table 10 — 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 YES = outside air being used for 1 stage cooling...
  • Page 33 Table 10 — 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 34 Table 10 — 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 35 Table 10 — 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 36 Table 10 — 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 37: 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 FAN TYPE = 1 SPEED is not used on RHV090-120 units. OA damper for minimum position for the fan speed.

  • Page 38: 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 RHV090-120 units sensor. When the OA temperature, OA humidity and OA dew point are all below the selected boundary, the econo-...

  • Page 39: Checkout

    CHECKOUT The Checkout tests can all be performed at the time of in- stallation or at any time during the operation of the system Inspect all wiring connections at the economizer module’s as a test that the system is operable. terminals, and verify compliance with the installation wiring diagrams.

  • Page 40: Completing Return Air Smoke Sensor Installation

    ADDITIONAL APPLICATION DATA Refer to the application data document “Factory Installed Smoke Detectors for Small and Medium Rooftop Units 2 to Return Air 25 Tons” for discussions on additional control features of Smoke Detetor (As Shipped) these smoke detectors including multiple unit coordination. Step 11 —...

  • Page 41: Step 13 - Fan Speed Set Up

    Step 13 — Fan Speed Set Up UNITS WITH ELECTRO-MECHANICAL CONTROLS The Fan Speed set up controls are located on the lower section of the Unit Control Board (UCB). See Fig. 49 for location. 1. Check the job specifications for the CFM (cubic feet per minute) and ESP (external static pressure) required.
  • Page 42 ESP in. wg Factory Setting: Calculator 9.0 V 1500 Field Setting: 1625 Record field setting here 1750 1875 2000 Switch Range: 2125 10.0 2250 4.1 - 7.5 2375 6.9 - 8.7 2500 7.7 - 10.0 Field Accessories: Economizer * Overlap in A, B, C switch range 1 Stage E Heat designed for maximum field adjustment potential.

  • Page 43: Typical Unit Piping

    Reversing Valve Energized and heating TXVs. RHV090-102 units outdoor coils contain Check Valve A a vapor header check valve. RHV090-120 unit indoor coils Check Valve B Open contain a vapor header check valve. See Fig. 51-56 and Tables 14-19 for typical unit piping schematic parallel coil...
  • Page 44 Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 51 — Piping Schematic — RHV090 Cooling Mode Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 52 — Piping Schematic — RHV090 Heating Mode RHV-090-120-01SI Specifications subject to change without notice.
  • Page 45 Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 53 — Piping Schematic — RHV102 Cooling Mode Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 54 — Piping Schematic — RHV102 Heating Mode RHV-090-120-01SI Specifications subject to change without notice.
  • Page 46 Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 55 — Piping Schematic — RHV120 Cooling Mode Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 56 — Piping Schematic — RHV120 Heating Mode RHV-090-120-01SI Specifications subject to change without notice.

  • Page 47: Pre-Start And Start-Up

    Pre-Start and Start-Up This completes the mechanical installation of the unit. Refer to the unit’s Service Manual for detailed Pre-Start and Start-Up instruc- tions. Download the latest versions from HVAC Partners (www.hvacpartners.com). RHV-090-120-01SI Specifications subject to change without notice.
  • Page 50 © 2022 Carrier Lewisburg, TN 37091 USA Replaces: New RHV-090-120-01SI Specifications are subject to change without notice.

  • Page 51: Start-Up Checklist

    START-UP CHECKLIST RHV090-120 Single Package Rooftop Heat Pump 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 sections of this Installation Instruction document.
  • Page 52 © 2022 Carrier Lewisburg, TN 37091 USA Replaces: New RHV-090-120-01SI CL-2 Specifications are subject to change without notice. 4-22...

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