International comfort products RHX036--060 Installation Instructions Manual
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International comfort products RHX036--060 Installation Instructions Manual

International comfort products RHX036--060 Installation Instructions Manual

R--410a single--package rooftop heat pump
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INSTALLATION INSTRUCTIONS
R- -410A Single- -Package Rooftop Heat Pump
NOTE: Read the entire instruction manual before starting
the installation

TABLE OF CONTENTS

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(In Lieu of Curb or Slab Mount)
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  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS R- -410A Single- -Package Rooftop Heat Pump RHX036- -060 NOTE: Read the entire instruction manual before starting the installation TABLE OF CONTENTS SAFETY CONSIDERATIONS ....Step 9 - - Units with Hinged Panels Only .

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS WARNING Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical ELECTRICAL SHOCK HAZARD shock or other conditions which may cause personal Failure to follow this warning could cause personal injury or property damage. Consult a qualified installer, injury or death.

  • Page 3: Rated Indoor Airflow (Cfm)

    Rated Indoor Airflow (cfm) Model Number Full Load Airflow (cfm) RHX036 1225 The table to the right lists the rated indoor airflow used RHX048 1700 for the AHRI efficiency rating for the units covered in this RHX060 1750 document. MODEL NOMENCLATURE MODEL SERIES Position Number R = Rooftop...
  • Page 4 C14288 Fig. 1 - - Unit Dimensional Drawing 516 01 3700 00 Specifications are subject to change without notice.
  • Page 5 C14289 Fig. 1 - - Unit Dimensional Drawing (cont.) 516 01 3700 00 Specifications are subject to change without notice.

  • Page 6: Installation

    C08337 LOCATION DIMENSION CONDITION 48--- in (1219 mm) Unit disconnect is mounted on panel 18--- in (457 mm) No disconnect, convenience outlet option 18--- in (457) mm Recommended service clearance 12--- in (305 mm) Minimum clearance 42--- in (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall) 36--- in (914 mm) Surface behind servicer is electrically non--- conductive (e.g., wood, fiberglass)

  • Page 7: Curb- - Mount Installation

    Table 1 – Operating Weights UNITS LB (KG) UNITS LB (KG) UNITS LB (KG) Base Unit 495 (224) 580 (263) 610 (276) Economizer Vertical 50 (23) 50 (23) 50 (23) Horizontal 80 (36) 80 (36) 80 (36) Cu Fins 25 (11) 43 (20) 56 (25) Unpowered Outlet...
  • Page 8 C13310 Fig. 4 - - Roof Curb Details 516 01 3700 00 Specifications are subject to change without notice.

  • Page 9: Step 5 - Field Fabricate Ductwork

    Step 5 — Field Fabricate Ductwork Step 6 — Rig and Place Unit Cabinet return-air static pressure (a negative condition) Keep unit upright and do not drop. Spreader bars are not shall not exceed 0.35 in. wg (87 Pa) with economizer or required if top crating is left on unit.

  • Page 10: Step 7 - - Convert To Horizontal And Connect Ductwork

    RGX036 RGX048 RGX060 RAX036 RAX048 RAX060 RHX036 RHX048 RHX060 C14249 Fig. 5 - - Rigging Label Step 7 — Convert to Horizontal and Connect Ductwork (when required) Unit is shipped in the vertical duct configuration. Unit without factory- - installed economizer or return air smoke detector option may be field- - converted to horizontal ducted configuration.

  • Page 11: Step 8 - Install Outside Air Hood

    Step 8 — Install Outside Air Hood 4. Carefully lift the hood assembly (with metal tray) through the filter access opening and assemble per the Economizer and Two Position Damper Hood steps outlined in Economizer Hood and Two–Position Package Removal and Setup - - Factory Option Hood, below.

  • Page 12: Step 9 - Units With Hinged Panels Only

    Step 10 — Install External Condensate Trap 4. Insert the hood divider between the hood sides. See Fig. 10 and Fig. 11. Secure hood divider with 2 and Line screws on each hood side. The hood divider is also The unit has one -in.

  • Page 13: Step 11 - Make Electrical Connections

    Step 11 — Make Electrical Connections WARNING WARNING FIRE HAZARD Failure to follow this warning could result in ELECTRICAL SHOCK HAZARD intermittent operation or performance satisfaction. Failure to follow this warning could result in personal Do not connect aluminum wire between disconnect injury or death.

  • Page 14: Units Without Factory- - Installed

    6. Measure from the tip of the shaft to the top surface of All units except 208/230-v units are factory wired for the the black pointer; the measurement should be 3.75 - - voltage shown on the nameplate. If the 208/230-v unit is 3.88 in.

  • Page 15: Units Without Thru- - Base Connections

    COVER – WHILE-IN-USE RECEPTACLE Typical Central WEATHERPROOF NOT INCLUDED Thermostat Terminal Connections Board (Note 2) BASE PLATE FOR O/B/Y2 GFCI RECEPTACLE (Note 1) C09022 Fig. 19 - - Weatherproof Cover Installation Units without Thru- - Base Connections — 1. Install power wiring conduit through side panel Note 1: Typical multi-function marking.

  • Page 16: Electric Heaters

    Electric Heaters DISCONNECT EMT OR RIGID CONDUIT SINGLE CENTER MANUAL RESET MOUNTING (FIELD-SUPPLIED) POINT BOX POST LIMIT SWITCH LOCATION HEATER COVERS RHX units may be equipped with field- - installed accessory electric heaters. The heaters are modular in design, with heater frames holding open coil resistance wires strung through ceramic insulators, line- - break limit switches and a control contactor.

  • Page 17: Single Point Boxes & Supplementary Fuses

    Single Point Boxes and Supplementary Fuses — Low- - Voltage Control Connections — When the unit MOCP device value exceeds 60- - A, Pull the low- - voltage control leads from the heater unit- - mounted supplementary fuses are required for each module(s) - - VIO and BRN (two of each if two modules heater circuit.

  • Page 18: Economi$Er X (Factory- -Installed Option)

    EconoMi$er X (Factory- -Installed Option) For details on operating RGX/RAX/RHX units equipped with the factory- - installed EconoMi$er X option, refer to Factory- - Installed Economizers RGH/RAH/RHH/ RGS/RAS/RHS Rooftop Units, 3 to 27.5 Nominal Tons. Economizer Supplement Related to California Title 24 (Literature number: 50901170301SS, or later).
  • Page 19 Table 3 – RHX036 Unit Wire/Fuse or HACR Breaker Sizing Data ELEC. HTR NO C.O. or UNPWR C.O. NO P.E. w/ P.E. (pwrd fr/unit) TYPE DISC. SIZE DISC. SIZE CRHEATER***A00 FUSE or FUSE or (kW) HACR HACR BRKR BRKR NONE 101A 3.3/4.4 15.9/18.3...
  • Page 20 Table 4 – RHX048 Unit Wire/Fuse or HACR Breaker Sizing Data ELEC. HTR NO C.O. or UNPWR C.O. NO P.E. w/ P.E. (pwrd fr/unit) TYPE DISC. SIZE DISC. SIZE CRHEATER***A00 FUSE or FUSE or (kW) HACR HACR BRKR BRKR NONE 101A 3.3/4.4 15.9/18.3...
  • Page 21 Table 5 – RHX060 Unit Wire/Fuse or HACR Breaker Sizing Data ELEC. HTR NO C.O. or UNPWR C.O. NO P.E. w/ P.E. (pwrd fr/unit) TYPE DISC. SIZE DISC. SIZE CRHEATER***A00 FUSE or FUSE or (kW) HACR HACR BRKR BRKR NONE 102A 4.9/6.5 23.5/27.1...
  • Page 22 Legend and Notes for Tables 3 --- 5 LEGEND: Example: Supply voltage is 230-3-60 BRKR --- Circuit breaker AB = 224 v --- Convenient outlet --- Direct drive (indoor fan motor) BC = 231 v DISC --- Disconnect AC = 226 v --- Full load amps --- Indoor fan motor (224 + 231 + 226)

  • Page 23: Step 12 - Adjust Factory- -Installed Options

    C09302 Fig. 28 - - EconoMi$er IV Wiring Step 12 — Adjust Factory- -Installed Options Step 13 — Install Accessories Smoke Detectors — Available accessories include: Curb Smoke detector(s) will be connected at the Controls Thru- - base connection kit (must be installed before unit Connections Board, terminals marked “Smoke...
  • Page 24 Copyright 2014 International Comfort Products Replaces: NEW Lewisburg, TN 37091 USA 516 01 3700 00 Specifications are subject to change without notice.

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