Nortek R8GE Series Installation Instructions Manual

Single package gas heating / electric cooling
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R8GE SERIES
INSTALLATION INSTRUCTIONS
SINGLE PACKAGE GAS HEATING / ELECTRIC COOLING - 3 PHASE
Premium Model Shown
WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury or property damage.
– Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbors phone. Follow the gas suppliers
instructions.
• If you cannot reach your gas supplier, call the
fire department.
– Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
DO NOT DESTROY THIS MANUAL. READ ALL INSTRUCTIONS IN THIS MANUAL AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
NE PAS DÉTRUIRE. LIRE TOUTES LES INSTRUCTIONS DONNÉE DANS LE MANUEL ET CONSERVER EN UN LIEU SÛR POUR RÉFÉRENCE ULTÉRIEURE.
AVERTISSEMENT
RISQUE D'INCENDIE OU D'EXPLOSION
Si les consignes de sécurité ne sont pas suivies à la
lettre, cela peut entraîner la mort, de graves blessures
ou des dommages matériels.
– Ne pas entreposer ni utiliser de l'essence ni d'autres
vapeurs ou liquides inflammables dans le voisinage
de cet appareil, ni de tout autre appareil.
QUE FAIRE SI UNE ODEUR DE GAZ EST
DÉTECTÉE
• Ne mettre en marche aucun appareil.
• Ne toucher aucun interrupteur électrique; ne pas
utiliser de téléphone dans le bâtiment.
• Quitter le bâtiment immédiatement.
• Appeler immédiatement le fournisseur de gaz
en utilisant le téléphone d'un voisin. Suivre les
instructions du fournisseur de gaz.
• Si le fournisseur de gaz n'est pas accessible, appeler
le service d'incendie.
– L'installation et l'entretien doivent être effectués
par un installateur ou une entreprise d'entretien
qualifié, ou le fournisseur de gaz.
14 SEER

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  • Page 1 R8GE SERIES 14 SEER INSTALLATION INSTRUCTIONS SINGLE PACKAGE GAS HEATING / ELECTRIC COOLING - 3 PHASE Premium Model Shown WARNING AVERTISSEMENT FIRE OR EXPLOSION HAZARD RISQUE D’INCENDIE OU D’EXPLOSION Failure to follow safety warnings exactly could Si les consignes de sécurité ne sont pas suivies à la lettre, cela peut entraîner la mort, de graves blessures...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION ....... 3 START UP & ADJUSTMENTS ..........16 Pre-Start Check List ............16 REQUIREMENTS & CODES ..........4 Start-Up Procedure............16 GENERAL INFORMATION ..........5 Air Circulation ..............16 System Cooling.............. 16 Before you install this unit..........5 System Heating .............
  • Page 3: Important Safety Information

    IMPORTANT SAFETY INFORMATION WARNING: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and any other special These units are fully charged with R-410A refrigerant notes highlighted in the manual. Safety markings are used and ready for installation. When a system is installed frequently throughout this manual to designate a degree or according to these instructions, no refrigerant level of seriousness and should not be ignored.
  • Page 4: Requirements & Codes

    • Consult Table 10 (page 22), and the rating plate for the WARNING: proper circulating air flow and temperature rise. It is important that the duct system be designed to provide the correct flow The information listed below and on the next page rates and external pressure rise.
  • Page 5: General Information

    GENERAL INFORMATION • The hot condenser air must be discharged up and away from the home, and if possible, in a direction with the prevailing The R8GE Single Package Gas Heating / Electric Cooling Unit wind. is designed only for outdoor rooftop or ground level installations •...
  • Page 6: Combustion Air & Venting Requirements

    COMBUSTION AIR & VENTING REQUIREMENTS WARNING: AVERTISSEMENT: CARBON MONOXIDE POISONING HAZARD RISQUE D’INTOXICATION AU MONOXYDE DE CARBONE Failure to follow the steps outlined below for each appliance connected to the venting system Si les étapes décrites ci-dessous ne sont pas suivies pour chacun des appareils raccordés au système de being placed into operation could result in carbon ventilation au moment de sa mise en marche, cela peut...
  • Page 7: Venting Requirements

    WARNING: WARNING: This unit is intended for outdoor installation only. Installation methods other than those described in the following sections must comply with the National Do not vent the unit through a conventional venting system. Fuel Gas Code and all applicable local codes for providing sufficient combustion air to the furnace.
  • Page 8: Circulating Air Supply

    CIRCULATING AIR SUPPLY NOMINAL APPROXIMATE APPROXIMATE RECOMMENDED COOLING AIR FLOW FILTER AREA (SQ. FILTER SIZE (TONS) RANGE (CFM) IN.)* (IN. X IN.) WARNING: 1,100 - 1,300 25 x 25 Products of combustion must not be allowed to 1,400 - 1,800 18 x 24 (2 required) enter the return air ductwork or the circulating air 1,800 - 2,200...
  • Page 9: Unit Installation

    UNIT INSTALLATION Rooftop Rooftop installations must be located according to local building Packaging Removal codes or ordinances and these requirements: Remove the shipping carton and User’s Manual from the • The roof must be capable of handling the weight of the unit. equipment.
  • Page 10: Removing Filters From Filter Rack

    Removing Filters from Filter Rack UNIT SIZE INTERNAL FILTER SIZE (3 Phase Only) (2) 16” x 25” x 1” 1. Remove access panel screws from return air panel. (Hint: R8GE-X36 Loosen the unit’s top panel screws near the top edge of (2) 16”...
  • Page 11: Electrical Wiring

    ELECTRICAL WIRING Line Voltage • The line voltage to the unit should be supplied from a dedicated branch circuit containing the correct fuse or circuit WARNING: breaker for the unit. • An electrical disconnect must be located within sight ELECTRICAL SHOCK, FIRE OR of and readily accessible to the unit.
  • Page 12 VOLTAGE RANGE COMPRESSOR MAXIMUM NOMINAL BLOWER MINIMUM MODEL HEATING INPUT OVER- ELECTRICAL MOTOR CIRCUIT NUMBER (BTUH) AMPS CURRENT MIN. MAX. SUPPLY AMPS AMPACITY PROTECTION 72,000 208/-230/60/3 11.6 1.46 20.9 R8GE-X36C 96,000 208/-230/60/3 11.6 1.46 20.9 96,000 208/-230/60/3 15.3 83.1 1.46 R8GE-X48C 120,000 208/-230/60/3...
  • Page 13: Grounding

    3. Determine the maximum deviation: Checking Heat Anticipator Settings • Add the current draw of the system components. EXAMPLE From the values given in step 1, the BC voltage (460V) is • Measure the current flow on the thermostat R-W circuit the greatest difference in value from the average: after the circulating blower motor has started.
  • Page 14: Gas Supply & Piping

    GAS SUPPLY & PIPING Pressure Adjustment section (page 17) for adjustment instructions. WARNING: • Gas piping must never run in or through air ducts, chimneys, gas vents, or elevator shafts. • Compounds used to seal joints on gas piping must be FIRE OR EXPLOSION HAZARD resistant to the actions of LP propane gas.
  • Page 15: High Altitude Conversion

    • If pressure testing the gas supply lines at pressures LP/Propane Gas Conversion greater than 1/2 psig (14 inches WC), the unit must be WARNING: disconnected from the gas supply piping system to prevent damage to the gas valve. • If the test pressure is less than or equal to 1/2 psig This unit was equipped at the factory for use with (14 inches WC), the unit must be isolated from the gas natural gas only.
  • Page 16: Start Up & Adjustments

    • Check unit for return air filters and condensate trap. Shut-Off Valve • Close all electrical disconnects to energize the system. with 1 /8 NPT Automatic Gas Valve plugged tap (with manual shut-off) Air Circulation Leave the thermostat system mode on OFF, and set the fan mode to ON.
  • Page 17: Verifying & Adjusting Firing Rate

    Verifying Burner Operation The integrated control starts the circulating air blower 30 seconds after the gas valve is opened. The control is factory WARNING: wired to turn the blower motor off 135 seconds after the gas valve is closed. NOTE: The heating blower off delay is factory set at 90 seconds.
  • Page 18: Operating Sequence

    2. Remove the regulator cap. Turn the high fire adjusting screw 13. After the BLOWER OFF timer has been satisfied, the integrated control de-energizes the main circulating blower clockwise to increase the pressure or counterclockwise to reduce the pressure. circuit. 3.
  • Page 19: Cleaning Of Heat Exchanger

    1. Shut off the gas supply to the unit at the meter or at the CAUTION: manual valve in the gas supply piping. 2. Turn off all power to the unit and set the thermostat to the Use care when removing parts from this unit. lowest temperature setting.
  • Page 20: Replacement Parts

    Gas Valve - controls the flow of gas to the burners in both low CAUTION: and high fire. When the gas valve is energized it automatically opens and regulates the gas pressure in the manifold. To prevent damage to the unit or internal components, Pressure Switch - Verifies that the inducer motor is drawing it is recommended that two wrenches be used when the combustion gases through the heat exchanger tubes and...
  • Page 21: Figures & Tables

    FIGURES & TABLES 3/4" NPT Female 24 9/10 Drain Connector DOWNFLOW SUPPLY DUCT OPENING 47 1/2 13 1/2 13 1/2 13 3/10 DOWNFLOW 23 1/2 RETURN DUCT ELECTRIC SUPPLY ENTRY OPENING 1.25 dia. Top View LOW VOLTAGE ENTRY BLOWER .88 dia. ACCESS GAS SUPPLY ENTRY 1.625 dia.
  • Page 22: Airflow Information

    Airflow Information Table 10. Nominal Airflow Rates and Temperature Rises (° F)
  • Page 23: Gas Information

    Gas Information CAPACITY OF BLACK IRON GAS PIPE (CU. FT. PER HOUR) FOR NATURAL GAS (SPECIFIC GRAVITY - 0.60) LENGTH OF PIPE RUN (FEET) NOMINAL PIPE DIAMETER (IN.) 1 1/4 1,050 1 1/2 1,600 1,100 Input To Furnace (Btu/hr) Cubic Feet Per Hour Required = Heating Value of Gas (Btu/Cu.
  • Page 24 FOR YOUR SAFETY READ BEFORE OPERATING POUR VOTRE SÉCURITÉ. À LIRE AVANT L’EMPLOI ATTENTION! L’inobservation de ces instructions peut WARNING: If you do not follow these instructions entraîner un incendie ou une explosion pouvant causer exactly, a fire or explosion may result causing property des dam mages à...
  • Page 25: Wiring Diagrams

    Wiring Diagrams Figure 11. Wiring Diagram for 208/230V / 3 Phase / 60 Hz Unit...
  • Page 26 WHITE GREEN YELLOW BLACK BLACK YELLOW Figure 12. Wiring Diagram for 460V / 3 Phase / 60 Hz Unit...
  • Page 27: Charging Charts

    Charging Charts R8GE - X36C, X48C, & X60C Charging Chart - Cooling REMOVE REFRIGERANT WHEN ABOVE CURVE 4 TON MODEL 3 & 5 TON MODELS ADD REFRIGERANT WHEN BELOW CURVE Liquid Temperature (F) Figure 13. Charging Chart for 3 Ton Units R8GE - X36D, X48D, &...
  • Page 28: Installation Checklist

    Failure to confirm proper charge and airflow may reduce energy efficiency and shorten equipment life. Specifications & illustrations subject to change without notice or incurring obligations (09/18). 10239680 (Replaces 10144340) O’Fallon, MO, © Nortek Global HVAC LLC 2018. All Rights Reserved.

This manual is also suitable for:

R8ge-x36cR8ge-x48cR8ge-x60c

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