R6GP - 072/090/120 Series, A Revision Installation Instructions Single Package Gas Heating / Electric Cooling Rooftop Units R6GP-090 Shown WARNING: FIRE OR EXPLOSION HAZARD • Failure to follow safety warnings exactly could result in serious injury or property damage. • Installation and service must be performed by a qualified installer, service agency or the gas supplier. • Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
TABLE OF CONTENTS Important SAFETY INFORMATION........................3 REQUIREMENTS & CODES........................................4 GENERAL INFORMATION...........................................5 About the Rooftop Unit...............................................5 Before You Install This Equipment..............................5 Locating the Unit........................................................5 Heating Load..............................................................5 COMBUSTION AIR & Venting...
important SAFETY INFORMATION Please read all instructions before servicing this equipment. Pay attention to all safety warnings and any other special notes highlighted in the manual. Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and should not be ignored. WARNING indicates a potentially hazardous situation that if not avoided, could result in personal injury or death.
should also be given to the accessibility of fuel, electric power, service access, noise, and shade. • The installer should become familiar with the units wiring diagram before making any electrical connections to the unit. See the unit wiring label or Figures 15 & 16 (pages 38 & 39). • Use caution when handling this appliance or removing components. Personal injury can occur from sharp metal edges present in all sheet metal constructed equipment.
GENERAL INFORMATION About the Rooftop Unit Single Package Gas Heating / Electric Cooling Rooftop Units are designed only for outdoor rooftop or ground level installations and can be readily connected to the duct system of a building. This unit has been tested for capacity and efficiency in accordance with AHRI Standards and will provide many years of safe and dependable comfort, providing it is properly installed and maintained.
Combustion Air & Venting WARNING: Installation methods other than those described in the following sections must comply with the National Fuel Gas Code and all applicable local codes for providing sufficient combustion air to the furnace. Provisions must be made during the installation of this unit that provide an adequate supply of air for combustion. • Instructions for determining the adequacy of an installation can be found in the current revision of the NFGC (ANSI Z223.1 / NFPA54).
• Make sure the exhaust gases will not impinge on windows or building surfaces, which may be compromised or damaged by condensation. • Do not install the unit in a location where exhaust from the vent termination will be directed into windows, stairwells, under decks, or other recessed areas. CIRCULATING AIR SUPPLY WARNING: Do not allow combustion products to enter the return air ductwork or the circulating air supply.
Air Filter Requirements FACTORY FILTER SIZE QTY R6GP-072*-(100/166)C 16x20x2 4 R6GP-090*-200C 16x20x2 4 R6GP-120*-235C 16x25x2 4 UNIT WARNING: Never operate the unit without a filter in place. Dust and lint could accumulate on internal parts, resulting in loss of efficiency, equipment damage and possible fire. Table 1. Filter Sizes & Quantities UNIT INSTALLATION All return air must pass through the filters before entering Packaging Removal the unit.
B, or C roof covering material as long as the following requirements are met: • If using side supply with return air ducts, the horizontal discharge kit must be installed prior to unit installation. • If using bottom discharge with return air ducts a roof curb must be installed prior to unit installation. See Rigging and Hoisting section on page 8 for setting of the unit.
Condensate Drain GAS SUPPLY & PIPING The method for disposing of condensate varies according to local codes. Consult your local code or authority having jurisdiction. Condensate is drained from the unit through a 3/4” (19mm) PVC pipe located on the front side of the unit (Figure 8). For proper drainage, install a 3” (8cm) Min. trap between the drain line and an open vent of the same size. Avoid areas where condensate drainage may cause problems.
IMPORTANT NOTES: • All gas piping must be installed in compliance with local codes and utility regulations. In the absence of local codes the gas line installation must comply with the latest edition of the National Fuel Gas Code ANSI Z223.1 or CAN/CGA B149 Installation Codes. • Some local codes require the installation of a manual main shut-off valve and ground joint union external to the furnace. The shut-off valve should be readily accessible for service and/or emergency use See Figure 9 (page 12).
Piped Gas Supply Piped Gas Supply Tubing Gas Supply Drop Drop Horizontal Horizontal Gas Valve Riser 3 in. Minimum 3 in. Riser Min. Gas Valve Gas Valve 3 in. Minimum NOTES: 1. All piping must comply with local codes, ordinances, and/or National Fuel Gas Codes. 2. A manual shutoff valve must be installed within 6 feet of this equipment. 3. Always include a drip leg in piping. Figure 9.
ELECTRICAL WIRING WARNING: ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury or property damage. Improper servicing could result in dangerous operation, serious injury, death or property damage. • Before servicing, disconnect all electrical power to furnace. • When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly. • Verify proper operation after servicing.
Unbalanced 3-Phase Supply Voltage Voltage unbalance occurs when the voltages of all phases of a 3-phase power supply are no longer equal. This unbalance reduces motor efficiency and performance. Some underlying causes of voltage unbalance may include: Lack of symmetry in transmission lines, large single-phase loads, and unbalanced or overloaded transformers. A motor should never be operated when a phase imbalance in supply is greater than 2%.
CAUTION To avoid personal injury or property damage, make certain that the motor leads do not make contact with any uninsulated metal components of the unit. To change the blower speed: 1. Disconnect all electrical power to the unit and remove the blower access panel. 2. Loosen the motor tension bars to allow removal of the blower belt from the motor sheave. 3. Loosen top set screw on motor sheave and turn clockwise to close (increases blower speed), or counterclockwise to open (decreases blower speed). 4.
Verifying & Adjusting Temperature Rise Verify the temperature rise through the unit is within the range specified on the unit data label. Temperature rises outside the specified range could result in premature heat exchanger failure. 1. Place thermometers in the return and supply air stream as close to the unit as possible. The thermometer on the supply air side must be shielded against direct radiation from the heat exchanger to avoid false readings. 2.
• • • • Example: Time for 1 revolution of a gas meter with a 1 cubic foot dial = 40 seconds. From Table 17 read 90 cubic feet gas per hour. Local heating value of the gas (obtained from gas supplier) = 1,040 Btu per cubic foot. Input rate = 1,040 x 90 = 93,600 Btuh. Manifold Pressure Adjustment The manifold pressure for both HIGH and LOW firing rates must be set to the appropriate value for your installation.
to run through the blower off delay of approximately 150 seconds. 8. If the unit fails to prove flame after fifteen ignition attempts, it will go into a soft lockout. The unit will reattempt the start-up procedure every hour until the thermostat is satisfied or 24 VAC power is removed from the unit for a minimum period of 5 seconds. NOTE: See Troubleshooting section (page 21) for a complete list of heating operation fault codes. Blower Mode 1.
Electrical WARNING: This unit may have more than one electrical supply.To avoid risk of electrical shock, personal injury, or death, disconnect all electrical power to the unit before performing any maintenance or service. CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Inspect the electrical connections for tightness at the beginning of each heating and cooling season. Service as necessary.
WARNING: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. 3. Disconnect the wires from the gas valve, ignitor, and flame sensor. 4. Using two wrenches, separate the ground-joint union in the gas supply piping at the unit. 5. Remove the piping between the gas valve and the ground-joint union, if necessary. 6. Remove the four screws securing the burner assembly to the unit. 7. Carefully remove the burner assembly from the unit.
Model R6GP-120C235C Shown Evaporator Coils Quick Release Filter Panel Condenser Fan Assemblies Durable Pre-Coat Paint Easy Access Control Panel Electrical Disconnect Mounting Panel + Control Wiring Entry Condenser Coils Power Wiring Entry Exhaust Vent High/Low Pressure Switch Protection Permament Baserail No Need for Removal with Roof Curb High Efficiency Compressors with Crankcase Heaters Liquid Line Filter Driers Knockout for Bottom Power Entry Gas Line Inlet Belt Drive Blower Motor Knockout 3/4”
FIGURES & TABLES physical Dimensions Dimensions shown in inches (mm) A Corner “D” Corner “A” Heat Exchanger CG Condenser Fans Top View B Corner “C” Corner “B” Blower Assembly HIGH VOLTAGE CONNECTIONS 101 1/2 (2578) GROUND CONNECTIONS LOW VOLTAGE CONNECTIONS INDOOR BLOWER COMBUSTION AIR INLET 4 (102) INDUCER EXHAUST OUTDOOR COMPARTMENT Front View FLAME OBSERVATION PORT RECOMMENDED DISCONNECT MOUNTING LOCATION 4 (102) BOTTOM POWER KIT MOUNTING LOCATION 2 (51) CONDENSATE DRAIN 30 3/4 Hor
INDUCER EXHAUST 57 1/2 (1460) RATING LABEL RECOMMENDED LOCATION FOR UNIT DISCONNECT COMBUSTION AIR LOUVERS 43 (1092) Heat Exchanger End GAS INLET 14 5/8 (371) UNIT BASERAIL 6 5/64 (154) Airflow Airflow Compressor Condenser End 7 (178) Return Air Opening 7 (178) 5-3/4 (146) 16 1/2 (419) 30 1/2 (775) 16 1/2 (419) Bottom Pan Top View 30 1/2 (775) Discharge Air Opening 8 3/4 (222) † Power Entry 62 (1575) 101 1/4 (2572) Figure 12 Continued 23
Dimensions shown in inches (mm) A Corner “A” Corner “D” Heat Exchanger CG Condenser Fans Top View B Corner “B” Corner “C” Blower Assembly 16 (406) 101 1/2 (2578) Optional Hail Guard Hood 4 (102) Field Wiring (†)Electric Element Access Control Access Blower Access Front View Condesate Drain 4 (102) 2 (51) 30 3/4 (781) Horizontal Discharge Air Opening* *Shown with optional horizontal duct panels Filter Access 4 (102) 30 (762) 16 1/2 (419) Condenser Coil Horz.
INDUCER EXHAUST 57 1/2 (1460) RATING LABEL RECOMMENDED LOCATION FOR UNIT DISCONNECT COMBUSTION AIR LOUVERS Heat Exchanger End 43 (1092) GAS INLET 14 5/8 (371) UNIT BASERAIL 6 5/64 (154) Airflow Airflow Compressors (x2) Condenser End 7 (178) Return Air Opening 7 (178) 5-3/4 (146) 16 1/2 (419) 30 1/2 (775) 16 1/2 (419) 30 1/2 (775) Discharge Air Opening Bottom Pan Top View 8 3/4 (222) † Power Entry 62 (1575) 101 1/4 (2572) Figure 13 Continued 25
Dimensions shown in inches (mm) A Corner “A” Corner “D” Filters (x4) Evaporator Heat Exchanger Condenser Fans Top View B Corner “C” Corner “B” Blower Assembly 16 (406) 4 (102) 101 1/2 (2578) Optional Hail Guard Hood Control Access Inducer Exhaust Recommended Unit Disconnect Mounting Location Combustion Air Inlet Blower Access Front View Condensate Drain 4 (102) 2 (51) Compressor Electric Supply Entries *Shown with optional horizontal duct panels Horizontal Discharge Air Opening* Heat E
Airflow 57 1/2 (1461) Airflow 18 1/2 (470) Optional Fresh Air Intake Hood Condenser Coil Compressors (2) 9 7/8 (250) Optional Relief Hood 8 (203) Gas Inlet 4 (102) Heat Exchanger End Condenser End 7 (178) Return Air Opening 7 (178) 5-3/4 (146) 16 1/2 (419) 16 1/2 (419) 30 1/2 (775) 30 1/2 (775) Bottom Pan Top View Discharge Air Opening 8 3/4 (222) † Power Entry 62 (1575) 101 1/4 (2572) Figure 14 Continued Unit Weight ‡ Shipping Weight Center of Gravity Inches (mm) Corner Weights B
BLOWER PERFORMANCE DATA This equipment is outfitted with a belt driven blower assembly in order to accommodate a large variety of duct configurations and airflow selections. The blower has been factory inspected for proper alignment, operation and rotational direction prior to the drive motor being situated in the shipping position. The blower drive belt is located with these instructions and must be installed by the service technician.
R6GP-072(C/D)-100C Factory Standard: 1Hp Down-flow Performance Chart ‡ Indicates Factory Sheave Setting Adjustable Motor Sheave Setting External Operating Unit @ 230 or Static 460 Volts (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW Fully Closed 1/2 Turn Open 1 Turn Open 1.5 Turns Open 2 Turns Open 2.5 Turns Open 3 Turns Open 2975 824 0.
R6GP-072(C/D)-100C Factory Standard: 1Hp Horizontal Performance Chart ‡ Indicates Factory Sheave Setting for Pre-configured Units Adjustable Motor Sheave Setting External Operating Unit @ 230 or Fully Static 460 Volts Closed (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW 1/2 Turn Open 1 Turn Open 1.5 Turns Open 2 Turns Open 2.
R6GP-072(C/D)-166C Factory Standard: 1Hp Downflow Performance Chart ‡ Indicates Factory Sheave Setting Adjustable Motor Sheave Setting External Operating Unit @ 230 or Fully Static 460 Volts Closed (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW 1/2 Turn Open 1 Turn Open 1.5 Turns Open 2 Turns Open 2.5 Turns Open 3 Turns Open 3.
R6GP-072(C/D)-166C Factory Standard: 1Hp Horizontal Performance Chart ‡ Indicates Factory Sheave Setting for Pre-configured Units Adjustable Motor Sheave Setting External Operating Unit @ 230 or Fully Static 460 Volts Closed (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW 1/2 Turn Open 1 Turn Open 1.5 Turns Open 2 Turns Open 2.
R6GP-090(C/D)-200Ca Factory Standard: 1.5Hp Down-flow Performance Chart ‡ Indicates Factory Sheave Setting Adjustable Motor Sheave Setting External Operating Unit @ 230 or Static 460 Volts (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW Fully Closed 1/2 Turn Open 1 Turn Open 1.5 Turns Open 2 Turns Open 2.
R6GP-090(C/D)-200Ca Factory Standard: 1.5Hp Horizontal Performance Chart ‡ Indicates Factory Sheave Setting for Pre-configured Units Adjustable Motor Sheave Setting External Operating Unit @ 230 or Fully Static 460 Volts Closed (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW 1/2 Turn Open 1 Turn Open 1.5 Turns Open 2 Turns Open 2.
R6GP-120(C/D)-235Ca Factory Standard: 1.5Hp Down-flow Performance Chart ‡ Indicates Factory Sheave Setting Adjustable Motor Sheave Setting External Operating Unit @ 230 or Static 460 Volts (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW Fully Closed 3551 814 1.41 3204 818 1.28 4 Turns Open 4.5 Turns Open 5 Turns Open 5.
R6GP-120(C/D)-235Ca Factory Standard: 1.5Hp Horizontal Performance Chart ‡ Indicates Factory Sheave Setting for Pre-configured Units Adjustable Motor Sheave Setting External Operating Unit @ 230 or Static 460 Volts (in-Wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW CFM RPM kW Fully Closed 1/2 Turn Open 3.5 Turns Open ‡ 4 Turns Open 4.5 Turns Open 5 Turns Open 5.
ELECTRICAL INFORMATION Model Number 2,3 R6GP- Nominal Unit Voltage 1 High Static Kit # Compressors Outdoor Motors (2) ea. Qty RLA LRA FLA 1 ea. 1 ea. 2 ea. 2 ea. 2 ea. 2 ea. 19 9.7 13.1 6.1 16.0 7.8 123 62 83.1 41 110 52 1.5 0.8 2.3 1.2 2.3 1.2 19 9.7 19 9.7 13.1 6.1 13.1 6.1 16.0 7.8 123 62 123 62 83.1 41 83.1 41 110 52 1.5 0.8 1.5 0.8 2.3 1.2 2.3 1.2 2.3 1.
C R Compressor 2 Compressor 1 Figure 15. Ladder Diagram - 072 / 090 / 120 Series L2 L1 CC1 Aux. CC1 Switch (N.C.) CC2 Aux. Switch (N.C.) CC2 IBC IC-L1 OFC Transformer L3 8 flashes Field Supplied 9 flashes Disconnect (3Phase Power Only) 10 flashes Steady On 2 flashes 3 flashes Unit Terminal 4 flashes Block 5 flashes 6 flashes 7 flashes Status Light (Red) See Note 5 Flame Rollout Switch Upper Scndry Limit Max Temp.
Figure 16.
GAS INFORMATION GAS PIPE CAPACITIES Length of Pipe Run (Feet) Nominal Pipe Diameter (IN.) 10 1/2 130 90 75 65 3/4 280 190 150 130 1 520 350 285 245 1 1/4 1,050 730 590 1 1/2 1,600 1,100 890 20 30 40 50 60 70 80 55 50 45 40 115 105 95 90 215 195 180 170 500 440 400 370 350 760 670 610 Input To Furnace (Btu/hr) Cubic Feet Per Hour Required = Heating Value of Gas (Btu/Cu. Ft.
GAS FLOW RATES TIME FOR ONE REVOLUTION (SECONDS) GAS FLOW RATES CUBIC FEET PER REVOLUTION OF GAS METER CUBIC FEET PER REVOLUTION OF GAS METER 1 5 10 TIME FOR ONE REVOLUTION (SECONDS) 1 5 10 10 12 360 300 1,800 1,500 3,600 3,000 66 68 55 53 273 265 545 529 14 257 1,286 2,571 70 51 257 514 16 225 1,125 2,250 72 50 250 500 18 200 1,000 2,000 74 49 243 486 20 180 900 1,800 76 47 237 474 22 164 818 1,636 78 46 231 462 24 150 750 1,500 80 45 225 45
R6 CHARGING CHARTS Application notes on the use of Charging Charts: This equipments cooling systems contain refrigerant under high pressure, always use safe practices when servicing the unit. Always review the factory literature and safety warnings prior to servicing. All R6GP-072/090/120 units are shipped from the factory with the proper amount and type of refrigerant. Always inspect the unit rating label to determine the units information prior to working on the system.
R6GP-090*-200C - Charging Chart - Cooling Operation Two stage refrigeration system - See Application Notes for use 580 555 530 505 R e m o ve re frig e ra n t w h e n a b o ve cu rve 480 Liquid Pressure (psig) 455 430 405 380 355 330 305 280 A d d re frig e ra n t w h e n b e lo w cu rve 255 230 205 180 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Temperature (F) Figure 18.
R6 gAS vALVE iNFORMATION FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. POUR VOTRE SÉCURITÉ. À LIRE AVANT L’EMPLOI ATTENTION! L’inobservation de ces instructions peut entraîner un incendie ou une explosion pouvant causer des dammages à votre propriété à votre personne, ou la mort. A. This appliance does not have a pilot.
White Rogers - Model 36H64 - 10 Ton Units - (P/N 624695) IMPORTANT NOTE: When converting to LP/Propane gas from natural gas, both springs from the gas valve must be replaced by the white springs included in the kit. The LP Propane springs for HIGH and LOW fire are the same size, shape, and color. 1. Remove both regulator cover screws. See Figure 21. 2. Remove both regulator adjustment screws from the gas valve (located beneath the cover screws). 3.
2-STAGE WHITE ROGERS VALVE 2-STAGE HONEYWELL VALVE Manifold Pressure Tap (Outlet) Inlet Pressure Tap ON/OFF Switch Manifold Pressure Tap (Outlet) ON/OFF Switch Model 36H64 Model VR9205Q1127 Figure 23.
INSTALLATION / PERFORMANCE CHECK LIST GAS SYSTEM INSTALLATION ADDRESS: Gas Type: (circle one) CITY_________________________ STATE_________________ UNIT MODEL #_________________________________________ UNIT SERIAL #________________________________________ Unit Installed within the Minimum clearances specified on page 10? YES NO Gas pipe connections leak-tested? Natural Gas Propane YES NO Gas Line Pressure:_____________________________ (in - W.C.
