Carrier WeatherMaster 50HC04 Service And Maintenance Instructions
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Carrier WeatherMaster 50HC04 Service And Maintenance Instructions

Carrier WeatherMaster 50HC04 Service And Maintenance Instructions

Single package rooftop electric cooling unit with puron (r-410a) refrigerant
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See also: Instruction and Installation Manual
Service and Maintenance Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . 2
UNIT ARRANGEMENT AND ACCESS. . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 3
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SUPPLY FAN (BLOWER) SECTION . . . . . . . . . . . . 4
Supply Fan (Direct-Drive) . . . . . . . . . . . . . . . . . . . . 4
Supply Fan (Belt-Drive) . . . . . . . . . . . . . . . . . . . . . . 6
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Identifying Factory Option . . . . . . . . . . . . . . . . . . . 8
Unit Installation with SAV Option . . . . . . . . . . . . . . 8
AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . 8
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replacing the Motor. . . . . . . . . . . . . . . . . . . . . . . . . 9
Changing Fan Wheel Speed . . . . . . . . . . . . . . . . . . 9
COOLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Condenser Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Recommendation. . . . . . . . . . . . . . . . . . . . . . . . 12
Evaporator Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TXV Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Replacing TXV . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PURON® (R-410A) REFRIGERANT. . . . . . . . . . . . 15
Refrigerant Charge. . . . . . . . . . . . . . . . . . . . . . . . . 15
COOLING CHARGING CHARTS . . . . . . . . . . . . . . 15
COMPRESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Replacing Compressor . . . . . . . . . . . . . . . . . . . . . 18
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . 18
Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Condenser-Fan Adjustment . . . . . . . . . . . . . . . . . 18
CONVENIENCE OUTLETS . . . . . . . . . . . . . . . . . . . 20
Convenience Outlets . . . . . . . . . . . . . . . . . . . . . . . 20
Installing Weatherproof Cover . . . . . . . . . . . . . . . 20
Non-Powered Type. . . . . . . . . . . . . . . . . . . . . . . . . 20
Unit-Powered Type. . . . . . . . . . . . . . . . . . . . . . . . . 20
Duty Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fuse on Powered Type . . . . . . . . . . . . . . . . . . . . . 21
ELECTRIC HEATERS . . . . . . . . . . . . . . . . . . . . . . . 21
Completing Heater Installation . . . . . . . . . . . . . . . 22
SMOKE DETECTORS . . . . . . . . . . . . . . . . . . . . . . . 24
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500188-01
Single Package Rooftop Electric Cooling Unit
Printed in U.S.A.
with Puron
®
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Smoke Detector Sensor . . . . . . . . . . . . . . . . . . . . 24
Smoke Detector Locations. . . . . . . . . . . . . . . . . . 25
Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SENSOR AND CONTROLLER TESTS . . . . . . . . . 26
Sensor Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . 26
Controller Alarm Test . . . . . . . . . . . . . . . . . . . . . . 26
Dirty Controller Test . . . . . . . . . . . . . . . . . . . . . . . 27
Dirty Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . 27
Changing the Dirty Sensor Test . . . . . . . . . . . . . 27
Remote Station Test . . . . . . . . . . . . . . . . . . . . . . . 28
Detector Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 28
Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 29
PROTECTIVE DEVICES . . . . . . . . . . . . . . . . . . . . 29
Compressor Protection . . . . . . . . . . . . . . . . . . . . 29
Relief Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Control Circuit, 24-V . . . . . . . . . . . . . . . . . . . . . . . 30
PremierLink™ Control . . . . . . . . . . . . . . . . . . . . . 30
RTU Open Control System. . . . . . . . . . . . . . . . . . 30
ECONOMIZER SYSTEMS . . . . . . . . . . . . . . . . . . . 30
EconoMi$er® IV Standard Sensors. . . . . . . . . . . 36
EconoMi$er IV Control Modes . . . . . . . . . . . . . . . 36
EconoMi$er IV Preparation . . . . . . . . . . . . . . . . . 40
Differential Enthalpy . . . . . . . . . . . . . . . . . . . . . . . 40
Single Enthalpy . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Supply-Air Sensor Input. . . . . . . . . . . . . . . . . . . . 40
EconoMi$er® X (Factory Option) . . . . . . . . . . . . 41
PRE-START-UP/START-UP . . . . . . . . . . . . . . . . . 55
START-UP, GENERAL . . . . . . . . . . . . . . . . . . . . . 55
Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Additional Installation/Inspection . . . . . . . . . . . . 55
Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . 55
Outdoor-Air Inlet Screens . . . . . . . . . . . . . . . . . . 55
Compressor Mounting . . . . . . . . . . . . . . . . . . . . . 55
Internal Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Refrigerant Service Ports. . . . . . . . . . . . . . . . . . . 56
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . 56
Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Heating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Pg 1
WeatherMaster
50HC04-14
(R-410A) Refrigerant
4-19
®

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  • Page 1: Table Of Contents

    ® WeatherMaster 50HC04-14 Single Package Rooftop Electric Cooling Unit with Puron ® (R-410A) Refrigerant Service and Maintenance Instructions CONTENTS System ........24 SAFETY CONSIDERATIONS .

  • Page 2: Safety Considerations

    Ventilation (Continuous Fan) ....56 WARNING START-UP, PREMIERLINK CONTROLS ..56 Perform System Check-Out....56 UNIT OPERATION AND SAFETY HAZARD START-UP, RTU-OPEN CONTROLS .

  • Page 3: Routine Maintenance

    Electric Heating FILTER ACCESS PANEL • Inspect power wire connections • Ensure fuses are operational • Ensure manual reset limit switch is closed Economizer or Outside Air Damper • Check inlet filters condition • Check damper travel (economizer) • Check gear and dampers for debris and dirt Air Filters and Screens COMPRESSOR ACCESS PANEL (04-07 only)

  • Page 4: Supply Fan (Blower) Section

    Supply Fan (Direct-Drive) 17 1/4” For unit sizes 04, 05 and 06, a direct-drive forward-curved cen- trifugal blower wheel is an available option. The motor has taps to provide the servicer with the selection of one of five motor torque/speed ranges to best match wheel performance with attached duct system.
  • Page 5 Position 5 tap, the motor speed is approximately 1050 rpm (17.5 r/s) but varies depending on fan wheel loading. Selecting speed tap The five communication terminals are each programmed to pro- vide a different motor torque output. See Table 1. Factory default tap selection is Position 1 for lowest torque/speed operation.

  • Page 6: Supply Fan (Belt-Drive)

    460, 575-v Units 208/230-v Units Fig. 10 — Direct-Drive Supply Fan Assembly Wiring Diagram Replacing the X-13 ECM Motor BLOWER PULLEY Before removing the ECM belly-band mounting ring from old motor: V--- BELT Measure the distance from base of the motor shaft to the edge of the mounting ring.
  • Page 7 Adjust belt tension by loosening the motor mounting plate front and rear bolts and sliding the plate toward the fan (to re- duce tension) or away from fan (to increase tension). Ensure FAN PULLEY the blower shaft and the motor shaft are parallel to each other MOVABLE (pulleys aligned).

  • Page 8: Staged Air Volume Control - 2 Speed Fan With Variable Frequency Drive (Vfd)

    LOCKING COLLAR T--- 25 TORX SOCKET HEAD CAP SCREW VARIABLE FREQUENCY Fig. 14 — Tightening Locking Collar DRIVE (VFD) STAGED AIR VOLUME CONTROL — 2 SPEED Fig. 15 — VFD Location for Sizes 07-09 FAN WITH VARIABLE FREQUENCY DRIVE (VFD) Staged Air Volume (SAV™) Indoor Fan Speed System The Staged Air Volume (SAV) system utilizes a Fan Speed...

  • Page 9: Motor

    17. Insert four bolts and flat washers through mounting holes MOTOR on the motor into holes on the motor mounting plate. When replacing the motor, use the following steps. See Fig. 18. 18. On one bolt, place a new external-tooth lock washer between the motor and motor mounting band.

  • Page 12: Cooling

    Totaline environmentally balanced coil cleaner is nonflamma- COOLING ble, hypo-allergenic, non-bacterial, and a USDA accepted bio- degradable agent that will not harm the coil or surrounding WARNING components such as electrical wiring, painted metal surfaces, or insulation. Use of non-recommended coil cleaners is strong- UNIT OPERATION AND SAFETY HAZARD ly discouraged since coil and unit durability could be affected.

  • Page 13: Evaporator Coil

    NOTE: Do NOT USE water in excess of 130°F, as the enzymatic activity will be destroyed. Thoroughly apply Totaline environmentally balanced coil cleaner solution to all coil surfaces including finned area, tube sheets and coil headers. Hold garden sprayer nozzle close to finned areas and apply cleaner with a vertical, up-and-down motion.

  • Page 14: Replacing Txv

    flow causes the leaving evaporator temperature to The brass fittings are two-piece high flow valves, with a recep- tacle base brazed to the tubing and an integral spring-closed decrease. This lowers the pressure on the diaphragm and check valve core screwed into the base. See Fig. 23. This check closes the pin.

  • Page 15: Puron® (R-410A) Refrigerant

    Remove charge if below the curve Refrigerant Charge Amount of refrigerant charge is listed on the unit’s nameplate. Refer to Carrier GTAC2-5 Charging, Recovery, Recycling and Reclamation training manual and the following procedures. Unit panels must be in place when unit is operating during the charging procedure.
  • Page 16 CHARGING CHART – R-410A REFRIGERANT 2-Stage 6 Ton Charging Chart R-410A Refrigerant COOLING MODE – OUTDOOR FAN MUST BE RUNNING (Cooling Mode - Compressor at Full Load and Outdoor Fans at High Speed) Add Charge if Above the Curve Add charge if above the curve Remove Charge if Below the Curve Remove charge if below the curve...
  • Page 17 CHARGING CHART – R-410A REFRIGERANT CHARGING CHART – R-410A REFRIGERANT COOLING MODE – ALL OUTDOOR FANS MUST BE RUNNING COOLING MODE – CIRCUIT A & B Add charge if above the curve Add charge if above the curve Remove charge if below the curve Remove charge if below the curve Compressor Discharge Pressure (psig) Compressor Discharge Pressure (psig)

  • Page 18: Compressor

    COMPRESSOR Compressor Rotation Lubrication CAUTION The compressor is charged with the correct amount of oil at the factory. EQUIPMENT DAMAGE HAZARD Failure to follow this caution can result in premature wear and damage to equipment. CAUTION Scroll compressors can only compress refrigerant if rotat- UNIT DAMAGE HAZARD ing in the right direction.
  • Page 19 Fig. 34 — Typical Piping Schematic (Dual Circuit Unit Shown)

  • Page 20: Convenience Outlets

    SIZE 11 UNITS WITH ECM CONDENSER FAN cover cannot be factory-mounted due to its depth. The cover must be installed at unit installation. For shipment, the conve- Shut off unit power supply. Install lockout tag. nience outlet is covered with a blank cover plate. Remove grille.

  • Page 21: Duty Cycle

    ELECTRIC HEATERS The 50HC units can be equipped with field-installed accessory electric heaters. The heaters are modular in design, with heater frames holding open coil resistance wires strung through ce- ramic insulators and control contactor(s), using a combination of 24-v control side break/auto-reset or line-break/auto-reset limit switches and a pilot-circuit/manual reset limit switch to protect the unit against over-temperature situations.

  • Page 22: Completing Heater Installation

    Table 6 — Heater Model Number Bare Heater Model Number Heater Sales Package PNO Includes: Bare Heater Carton and Packing Materials Installation Sheet fuses. Connect power supply conductors to heater conductors and field-supplied base unit power tap leads (see Completing Heater Installation section) inside the empty single point box using UL-approved connectors.
  • Page 23 LOW-VOLTAGE CONTROL CONNECTIONS (ALL LCTB EXCEPT CRHEATER128B00-129B00) Pull the low-voltage control leads from the heater module(s) — CONTL VIO and BRN (two of each if two modules are installed; iden- BOARD tify for module no. 1) — to the 4-pole terminal board TB4 lo- cated on the heater bulkhead to the left of heater 1.

  • Page 24: Smoke Detectors

    TRAN1 FROM POWER SCHEMATIC DUCT SMOKE SENSOR GRN/ 3.2 AMPS CONTROLLER TRAN2 FROM POWER SCHEMATIC GRN/ 3.2 AMPS CONDUIT NUTS NOTE 4 AND 6 (SUPPLIED BY INSTALLER) ELECTRIC CONDUIT SUPPORT PLATE HEAT(ACCESSORY) SEE HEATER LABEL DIAGRAM CONTROLLER HOUSING TERMINAL BLOCK COVER AND ELECTRONICS COVER GASKET (ORDERING OPTION)

  • Page 25: Smoke Detector Locations

    RETURN AIR DETECTOR MODULE (Shipping position shown)* CONTROLLER EXHAUST TUBE DUCT SMOKE SENSOR MODULE EXHAUST GASKET SENSOR HOUSING AND ELECTRONICS SEE DETAIL INTAKE GASKET COVER GASKET (ORDERING OPTION) RETURN AIR DETECTOR TSD-CO2 (ORDERING OPTION) SAMPLING TUBE SENSOR PLUG COVER SAMPLING TUBE (ORDERED SEPARATELY) *RA detector must be moved from shipping position to operating position by installer.

  • Page 26: Fiop Smoke Detector Wiring And Response

    Connect the flexible tube on the sampling inlet to the sam- PREMIERLINK™ AND RTU-OPEN CONTROLS pling tube on the basepan. Unit operating functions (fan, cooling and heating) are termi- For units with an economizer, the sampling tube is inte- nated as described above. In addition: grated into the economizer housing but connecting the HIGHLIGHT D flexible tubing to the sampling tube is the same.

  • Page 27: Dirty Controller Test

    Fig. 56 — Typical Smoke Detector System Wiring Table 7 — Dirty LED Test IMPORTANT: Failure to follow this ALERT can result FLASHES DESCRIPTION in an unnecessary evacuation of the facility. 0-25% dirty. (Typical of a newly installed detector) This test places the duct detector into the alarm state. 25-50% dirty Unless part of the test, disconnect all auxiliary equipment 51-75% dirty...

  • Page 28: Remote Station Test

    Reset the sensor by removing the test magnet then holding IMPORTANT: Failure to follow this ALERT can result in it against the sensor housing again until the sensor’s Alarm an unnecessary evacuation of the facility. LED turns off (approximately 2 seconds). Holding the test magnet to the target area for longer than seven seconds will put the detector into the alarm state and Remote Station Test...

  • Page 29: Troubleshooting

    ALARM STATE Troubleshooting The smoke detector enters the alarm state when the amount of CONTROLLER’S TROUBLE LED IS ON smoke particulate in the sensor’s sensing chamber exceeds the Check the Trouble LED on each sensor connected to the alarm threshold value. (See Table 8.) Upon entering the alarm controller.

  • Page 30: Relief Device

    the suction line near the compressor. The switch is stem- Control Circuit, 24-V mounted. Trip setting is 54 psig ± 5 psig (372 ± 34 kPa). Reset The control circuit is protected against overcurrent conditions is automatic at 117 ± 5 psig (807 ± 34 kPa). by a circuit breaker mounted on control transformer TRAN.
  • Page 31 ECONOMI$ER IV OUTDOOR AIR HOOD CONTROLLER OUTSIDE AIR WIRING TEMPERATURE SENSOR HARNESS LOW AMBIENT ECONOMI$ER2 SENSOR HOOD PLUG ACTUATOR SHIPPING BRACKET GEAR DRIVEN BAROMETRIC DAMPER RELIEF DAMPER Fig. 60 — EconoMi$er IV Component Locations Fig. 62 — EconoMi$er2 Component Locations WIRING HARNESS OUTSIDE AIR TEMPERATURE SENSOR...
  • Page 32 Fig. 63 — RTU Open Overlay for Economizer Wiring...
  • Page 33 Fig. 64 — VFD Overlay for W2770 Controller Wiring...
  • Page 34 FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD-SUPPLIED TIME CLOCK LEGEND — Demand Controlled Ventilation NOTES: — Indoor Air Quality 1. 620 ohm, 1 watt 5% resistor should be removed only when using — Low Ambient Lockout Device differential enthalpy or dry bulb. —...
  • Page 35 BLACK TRANSFORMER GROUND BLUE 500 OHM RESISTOR VIOLET PINK OAT SENSOR ACTULATOR FEEDBACK (2-10VDC) ORANGE ACTULATOR WHITE DIRECT DRIVE 4-20mA SIGNAL CONTROL ACTUATOR (4-20mA) ECONOMI$ER2 PLUG NOTES: 3. 50HJ540573 actuator consists of the 50HJ540567 actuator and a 1. Switch on actuator must be in run position for economizer to operate. harness with 500-ohm resistor.

  • Page 36: Economi$Er® Iv Standard Sensors

    to lock out the compressors below a 42°F (6°C) ambient tem- ® EconoMi$er IV Standard Sensors perature. See Fig. 60. A functional view of the EconoMi$er is shown in Fig. 67. Typ- ical settings, sensor ranges, and jumper positions are also EconoMi$er IV Control Modes shown.
  • Page 37 ECONOMI$ER IV CONTROLLER LED ON ECONOMI$ER IV LED ON LED OFF LED ON LED OFF GROMMET LED ON LED OFF LED OFF RETURN AIR SENSOR DEGREES FAHRENHEIT Fig. 70 — Outside Air Temperature Changeover RETURN DUCT Set Points (FIELD-PROVIDED) Fig. 72 — Return Air Temperature or Enthalpy Sensor Mounting Location 24 Vac Open...
  • Page 38 EXHAUST SET POINT ADJUSTMENT (29) (32) (35) (38) (41) (43) The exhaust set point will determine when the exhaust fan runs based on damper position (if accessory power exhaust is in- CONTROL CONTROL POINT CURVE APPROX. deg. F (deg. C) stalled).
  • Page 39 See Table 10. contacts are closed, the EconoMi$er IV control will be in occu- Use setting 1 or 2 for Carrier equipment. See Table 10. pied mode. When the timeclock contacts are open (removing Press Clear and Mode buttons.

  • Page 40: Economi$Er Iv Preparation

    DEHUMIDIFICATION OF FRESH AIR WITH DCV Ensure terminals AQ and AQ1 are open. The LED for (DEMAND CONTROLLED VENTILATION) CONTROL both DCV and Exhaust should be off. The actuator should be fully closed. If normal rooftop heating and cooling operation is not adequate Connect a 9-v battery to AQ (positive node) and AQ1 for the outdoor humidity level, an energy recovery unit and/or (negative node).

  • Page 41: Economi$Er X (Factory Option)

    Set minimum position, DCV set point, and exhaust poten- Sensor (optional) tiometers to previous settings. The CO sensor can be added for Demand Controlled Ventila- Remove 620-ohm resistor from terminals SR and +. tion (DCV). Remove 1.2 kilo-ohm checkout resistor from terminals SO SPECIFICATIONS and +.
  • Page 42 Exhaust fan, Y1, Y2 and AUX1 O Table 11 — Economizer Module All Relay Outputs (at 30 vac): (Left Hand Terminal Blocks) Running: 1.5A maximum LABEL TYPE DESCRIPTION Inrush: 7.5A maximum Top Left Terminal Block ENVIRONMENTAL 20k NTC Mixed Air Temperature Sensor (Polarity Operating Temperature and COM Insensitive Connection)
  • Page 43 SENSOR (HOT) BLACK YELLOW ANALOG BROWN – ORANGE GREEN SWITCH POWER SUPPLY. PROVIDE DISCONNECT LABEL MEANS AND OVERLOAD PROTECTION AS REQUIRED. Fig. 79 — CO Sensor Wiring SWITCHES INTERFACE OVERVIEW This section describes how to use the EconoMi$er ® user inter- face for: •...
  • Page 44 Press the (Enter) button to display the value of the • ADVANCED SETUP currently displayed item. • CHECKOUT Press the ▲ button to increase (change) the displayed • ALARMS parameter value. NOTE: Some parameters in the menus use the letters MA or Press the ▼...
  • Page 45 Table 15 — W7220 Menu Structure* PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † FIRST STAGE COOLING DEMAND (Y1-IN) ECON 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 46 Table 15 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † EXHAUST STAGE 2 RELAY OUTPUT Output of AUX1 O terminal Displays ON when damper position reaches programmed EXH2 OUT ON/OFF percentage set point.
  • Page 47 Table 15 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † EXHAUST FAN STAGE 1 SETPOINT Set point for OA damper position when exhaust fan 1 is powered 0 to 100%; by the economizer.
  • Page 48 Table 15 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † NONE Used for alarm for when the DA air temperature is too high. Sets 70°F to 180°F DA HI ALM 80°F (27°C) upper range of alarm;...
  • Page 49 Table 15 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † Check if outdoor temperature is below the LOW Temp Lockout on set point menu. Check if Mixed air temperature on STATUS FREEZE ALARM menu is below the Lo Set point on Advanced menu.
  • Page 50 Table 17 — Dry Bulb Operation without DCV (CO Sensor) — 1 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE High 0-v/Off 0-v/Off MIN POS Closed High 24-v/On 0-v/Off MIN POS Closed High...
  • Page 51 Table 20 — Enthalpy Operation with DCV (CO Sensor) — 1 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE High 0-v/Off 0-v/Off Closed VENTMIN High 24-v/On 0-v/Off Closed VENTMIN High 24-v/On 24-v/On...
  • Page 52 Table 22 — Dry Bulb Operation with DCV (CO Sensor) — 2 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I Y1-O Y2-O OCCUPIED UNOCCUPIED SPEED VENTILATION (DCV) ECONOMIZE 0v/Off 0v/Off VENTMIN Closed 24v/On 0v/Off VENTMIN Closed HIGH 24v/On 24v/On VENTMIN Closed...
  • Page 53 Table 24 — Enthalpy Operation with DCV (CO Sensor) — 2 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I Y1-O Y2-O OCCUPIED UNOCCUPIED SPEED VENTILATION (DCV) ECONOMIZE 0v/Off 0v/Off VENTMIN Closed 24v/On 0v/Off VENTMIN Closed HIGH 24v/On 24v/On VENTMIN Closed 0v/Off...
  • Page 54 ECONOMIZING DUAL ENTHALPY AVAILABLE HIGH LIMIT NOT AVAILABLE SINGLE ENTHALPY P2 (T,RH) (T,RH) TEMPERATURE Fig. 81 — Single Enthalpy Curve Boundaries Table 26 — Single Enthalpy and Dual Enthalpy High Limit Curves POINT P1 POINT P2 ENTHALPY TEMP. DRY TEMP. ENTHALPY HUMIDITY HUMIDITY...

  • Page 55: Pre-Start-Up/Start-Up

    You can also navigate to the Alarms menu at any time. Proceed as follows to inspect and prepare the unit for initial start-up: Clearing Alarms Remove all access panels. Once the alarm has been identified and the cause has been re- Read and follow instructions on all WARNING, CAU- moved (e.g.

  • Page 56: Internal Wiring

    Turn off power to the unit and install lockout tag. nal control module. During start-up, the Carrier software can also Reverse any two of the unit power leads.
  • Page 57 START-UP, RTU-OPEN CONTROLS IMPORTANT: SET-UP INSTRUCTIONS Installation, wiring and troubleshooting information for the RTU-OPEN Controller.: “Controls, Start-up, Opera- tion and Troubleshooting Instructions,” “RTU-Open In- stallation and Start-up Guide” and “RTU-Open Integra- tion Guide”. Have a copy of these manuals available at unit start-up.
  • Page 58 --- Powered 115 Volt Convenience Outlet * See Price Page details for specific Humidi-MiZer models. Not all possible options can be displayed above --- see price pages or contact your Carrier Expert for more details Fig. A — Model Number Nomenclature...
  • Page 59 APPENDIX B — PHYSICAL DATA Table A — PHYSICAL DATA (Cooling) 3-5 Tons 50HC*A04 50HC*B04 50HC*A05 50HC*B05 50HC*A06 50HC*B06 Refrigeration System # Circuits / # Comp. / Type 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll...
  • Page 60 APPENDIX B — PHYSICAL DATA Table A — PHYSICAL DATA (Cooling) 3-5 Tons (cont) 50HC*A04 50HC*B04 50HC*A05 50HC*B05 50HC*A06 50HC*B06 Cond. fan / motor Qty / Motor Drive Type 1 / direct 1 / direct 1 / direct 1 / direct 1 / direct 1 / direct Motor HP / RPM...
  • Page 61 APPENDIX B — PHYSICAL DATA Table B — PHYSICAL DATA (Cooling) 6 Tons 50HC*A07 50HC*B07 50HC*D07 50HC*E07 Refrigeration System # Circuits / # Comp. / Type 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / 2-Stage Scroll 1 / 1 /2-Stage Scroll Puron refrigerant (R-410A) charge (lb-oz)
  • Page 62 APPENDIX B — PHYSICAL DATAPHYSICAL DATA Table C — PHYSICAL DATA (Cooling) 7.5-8.5 Tons 50HC*D08 50HC*E08 50HC*D09 50HC*E09 Refrigeration System # Circuits / # Comp. / Type 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll RTPF models R-410A charge A/B (lbs - oz) 9 - 10 / 9 - 10 —...
  • Page 63 APPENDIX B — PHYSICAL DATA Table D — PHYSICAL DATA (Cooling) 10-12.5 Tons 50HC*D11 50HC*E11 50HC*D12 50HC*E12 50HC*D14 50HC*E14 Refrigeration System # Circuits / # Comp. / Type 2/2/Scroll 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll RTPF models R-410A charge A/B (lbs - oz) 12-10/ 13-0...
  • Page 64 APPENDIX C — FAN PERFORMANCE Table E — 50HC Size 04 Single Phase Humidi-MiZer 3-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.13 0.23 0.34 0.47 0.61 0.15 0.25 0.37 0.50 1015 0.64 0.18 0.28 0.40 0.53 1030 0.68 1050 0.20 0.31...
  • Page 65 APPENDIX C — FAN PERFORMANCE Table G — 50HC Size 04 3-Phase Humidi-MiZer 3-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.13 0.23 0.34 0.47 0.61 0.15 0.25 0.37 0.50 1015 0.64 0.18 0.28 0.40 0.53 1030 0.68 1050 0.20 0.31 0.43...
  • Page 66 APPENDIX C — FAN PERFORMANCE Table I — 50HC Size 04 3-Phase Non-Humidi-MiZer 3-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.13 0.23 0.34 0.47 0.61 0.15 0.25 0.37 0.50 1015 0.64 0.18 0.28 0.40 0.53 1030 0.68 1050 0.20 0.31 0.43...
  • Page 67 APPENDIX C — FAN PERFORMANCE Table K — 50HC Size 05 Single Phase Humidi-MiZer 4-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.23 0.34 0.47 0.61 1064 0.76 1200 0.28 0.39 0.52 1007 0.67 1088 0.82 1300 0.33 0.45 0.58 1034 0.73...
  • Page 68 APPENDIX C — FAN PERFORMANCE Table M — 50HC Size 05 3-Phase Humidi-MiZer 4-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.23 0.34 0.47 0.61 1064 0.76 1200 0.28 0.39 0.52 1007 0.67 1088 0.82 1300 0.33 0.45 0.58 1034 0.73 1113...
  • Page 69 APPENDIX C — FAN PERFORMANCE Table O — 50HC Size 05 3-Phase Non-Humidi-MiZer 4-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.23 0.34 0.47 0.61 1064 0.76 1200 0.28 0.39 0.52 1007 0.67 1088 0.82 1300 0.33 0.45 0.58 1034 0.73 1113...
  • Page 70 APPENDIX C — FAN PERFORMANCE Table Q — 50HC Size 06 Single Phase Humidi-MiZer 5-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.33 0.46 0.60 1023 0.75 1101 0.90 1500 0.40 0.54 0.68 1054 0.84 1131 1.00 1625 0.48 0.63 1004 0.78...
  • Page 71 APPENDIX C — FAN PERFORMANCE Table S — 50HC Size 06 3-Phase Humidi-MiZer 5-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.33 0.46 0.60 1023 0.75 1101 0.90 1500 0.40 0.54 0.68 1054 0.84 1131 1.00 1625 0.48 0.63 1004 0.78 1087...
  • Page 72 APPENDIX C — FAN PERFORMANCE Table U — 50HC Size 06 3-Phase Non-Humidi-MiZer 5-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.33 0.46 0.60 1023 0.75 1101 0.90 1500 0.40 0.54 0.68 1054 0.84 1131 1.00 1625 0.48 0.63 1004 0.78 1087...
  • Page 73 APPENDIX C — FAN PERFORMANCE Table W — 50HC Size 07 3-Phase Non-Humidi-MiZer 6-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 1800 0.28 0.46 0.65 0.85 1.08 1950 0.32 0.51 0.71 0.93 1.16 2100 0.38 0.57 0.78 1.01 1.25 2250 0.43 0.64...
  • Page 74 APPENDIX C — FAN PERFORMANCE Table Y — 50HC Size 08 3-Phase Non-Humidi-MiZer 7.5-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.29 0.41 0.54 0.67 0.81 2250 0.35 0.48 0.61 0.75 0.90 2438 0.42 0.55 0.69 0.84 1.00 2625 0.49 0.64 0.78...
  • Page 75 APPENDIX C — FAN PERFORMANCE Table AA — 50HC Size 09 3-Phase Non-Humidi-MiZer 8.5-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.39 0.52 0.66 0.80 0.96 2550 0.47 0.61 0.75 0.91 1.07 2750 0.58 0.73 0.88 1.05 1.22 3000 0.68 0.84 1.00...
  • Page 76 APPENDIX C — FAN PERFORMANCE Table AC — 50HC Size 11 3-Phase Non-Humidi-MiZer 10-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.58 0.73 0.88 1.05 1.22 3000 0.71 0.87 1.04 1.21 1.39 3250 0.86 1.03 1.21 1.39 1.58 3500 1.03 1.21 1.40...
  • Page 77 APPENDIX C — FAN PERFORMANCE Table AE — 50HC Size 12 3-Phase Non-Humidi-MiZer 10-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.58 0.73 0.88 1.05 1.22 3000 0.71 0.87 1.04 1.21 1.39 3250 0.86 1.03 1.21 1.39 1.58 3500 1.03 1.21 1.40...
  • Page 78 APPENDIX C — FAN PERFORMANCE Table AG — 50HC Size 14 3-Phase Non-Humidi-MiZer 12.5-Ton Horizontal Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.48 0.69 0.94 1.23 1.54 3438 0.59 0.80 1.06 1.35 1.67 3750 0.71 0.93 1.19 1.49 1.81 4063 0.84 1.08 1.35...
  • Page 79 APPENDIX C — FAN PERFORMANCE Table AH — 50HC Size 14 3-Phase Non-Humidi-MiZer 12.5-Ton Vertical Supply AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.46 0.66 0.91 1.20 1.53 3438 0.56 0.77 1.01 1.30 1.64 3750 0.67 0.90 1.14 1.43 1.76 4063 0.79 1.04 1.29...
  • Page 80 APPENDIX C — FAN PERFORMANCE X13 MULTI-SPEED/TORQUE MOTOR Table AI — 50HC*A04 Horizontal Unit - Direct Drive Table AJ — 50HC*A04 Vertical Unit - Direct Drive SPEED SPEED (TORQUE) (TORQUE) 0.47 0.21 0.36 0.16 0.38 0.20 0.27 0.16 0.29 0.19 0.18 0.15 1050...
  • Page 81 APPENDIX C — FAN PERFORMANCE X13 MULTI-SPEED/TORQUE MOTOR Table AK — 50HC*A05 Horizontal Unit - Direct Drive Table AL — 50HC*A05 Vertical Unit - Direct Drive SPEED SPEED (TORQUE) (TORQUE) 0.62 0.34 0.57 0.31 1200 1200 0.48 0.32 0.44 0.29 1300 1300 0.35...
  • Page 82 APPENDIX C — FAN PERFORMANCE X13 MULTI-SPEED/TORQUE MOTOR Table AM — 50HC*A06 Horizontal Unit - Direct Drive Table AN — 50HC*A06 Vertical Unit - Direct Drive SPEED SPEED (TORQUE) (TORQUE) 0.63 0.49 0.50 0.44 1500 1500 0.45 0.46 0.32 0.42 1625 1625 0.27...
  • Page 83 Tabular data accounts for pressure loss due to clean filters, unit casing, and wet coils. Factory options and accessories can add static pressure losses. The Fan Performance tables offer motor/drive recommendations. In cases when two motor/drive combinations would work, Carrier recommends the lower horsepower option.
  • Page 84 APPENDIX D — WIRING DIAGRAMS Table AP — Wiring Diagrams 50HC*A04-D14 UNITS STANDARD HUMIDI-MIZER SIZE VOLTAGE CONTROL POWER CONTROL POWER 48TM502523-G 48TM503090-I 230-1-60 (page 93) (page 111) 208/230-3-60 48TM502410-H 48TM503087-K 48TM503097-K A04-A06 460-3-60 (page 85) (page 105) (page 112) 48TM502524-I (page 94) 48TM503131-L 575-3-60...
  • Page 85 APPENDIX D — WIRING DIAGRAMS Fig. B — 50HC*A04-A06 PAC Control Diagram — 208-1-60; 208/230-3-60; 460/575-3-60...
  • Page 86 APPENDIX D — WIRING DIAGRAMS Fig. C — 50HC*A07 PAC Control Diagram — 208/230-3-60; 460/575-3-60...
  • Page 87 APPENDIX D — WIRING DIAGRAMS Fig. D — 50HC*D07 PAC Control Diagram — 208/230-3-60; 460/575-3-60 (6 Ton 2 Stage Cooling)
  • Page 88 APPENDIX D — WIRING DIAGRAMS Fig. E — 50HC*D07 PAC Control Diagram — 208/230-3-60; 460/575-3-60 (6 Ton 2 Stage with Dehumidification)
  • Page 89 APPENDIX D — WIRING DIAGRAMS Fig. F — 50HC*D08-D09 PAC Control Diagram — 208/230-3-60; 460/575-3-60...
  • Page 90 APPENDIX D — WIRING DIAGRAMS Fig. G — 50HC*D11 PAC Control Diagram — 208/230-3-60, 460-3-60, 575-3-60...
  • Page 91 APPENDIX D — WIRING DIAGRAMS Fig. H — 50HC*D12 PAC Control Diagram — 208/230-3-60; 460/575-3-60...
  • Page 92 APPENDIX D — WIRING DIAGRAMS Fig. I — 50HC*D14 PAC Control Diagram — 208/230-3-60, 460-3-60, 575-3-60...
  • Page 93 APPENDIX D — WIRING DIAGRAMS Fig. J — 50HC*A04-A06 PAC Power Diagram — 208/230-1-60...
  • Page 94 APPENDIX D — WIRING DIAGRAMS Fig. K — 50HC*A04-A06 PAC Power Diagram — 208/230-3-60; 460-3-60; 575-3-60...
  • Page 95 APPENDIX D — WIRING DIAGRAMS Fig. L — 50HC*A07 PAC Power Diagram — 208/230-3-60, 460-3-60, 575-3-60...
  • Page 96 APPENDIX D — WIRING DIAGRAMS Fig. M — 50HC*D07 PAC Power Diagram — 208/230-3-60, 460-3-60 (6 Ton 2 Stage with Cooling)
  • Page 97 APPENDIX D — WIRING DIAGRAMS Fig. N — 50HC*D07 PAC Power Diagram — 208/230-3-60, 460-3-60 (6 Ton 2 Stage with Dehumidification)
  • Page 98 APPENDIX D — WIRING DIAGRAMS Fig. O — 50HC*D07 PAC Power Diagram — 575-3-60 (6 Ton 2 Stage with Dehumidification)
  • Page 99 APPENDIX D — WIRING DIAGRAMS Fig. P — 50HC*D08-D09 PAC Power Diagram — 208/230-3-60, 460-3-60, 575-3-60...
  • Page 100 APPENDIX D — WIRING DIAGRAMS Fig. Q — 50HC*D11 PAC Power Diagram 208/230-3-60...
  • Page 101 APPENDIX D — WIRING DIAGRAMS Fig. R — 50HC*D11 PAC Power Diagram 460-3-60, 575-3-60...
  • Page 102 APPENDIX D — WIRING DIAGRAMS Fig. S — 50HC*D12 PAC Power Diagram — 208/230-3-60, 460-3-60, 575-3-60...
  • Page 103 APPENDIX D — WIRING DIAGRAMS Fig. T — 50HC*D14 PAC Power Diagram — 208/230-3-60...
  • Page 104 APPENDIX D — WIRING DIAGRAMS Fig. U — 50HC*D14 PAC Power Diagram — 460-3-60, 575-3-60...
  • Page 105 APPENDIX D — WIRING DIAGRAMS Fig. V — 50HC*A04-A06 PAC Control Diagram — 230-1-60; 230/460/575-3-60 with Humidi-MiZer ® System...
  • Page 106 APPENDIX D — WIRING DIAGRAMS Fig. W — 50HC*A07 PAC Control Diagram — 208/230-1-60; 230/460/575-3-60 with Humidi-MiZer ® System...
  • Page 107 APPENDIX D — WIRING DIAGRAMS ® Fig. X — 50HC*D08-D09 PAC Control Diagram — 208/230-3-60, 460-3-60, 575-3-60 with Humidi-MiZer System...
  • Page 108 APPENDIX D — WIRING DIAGRAMS Fig. Y — 50HC*D11 PAC Control Diagram — 208/230-1-60; 230/460/575-3-60 with Humidi-MiZer ® System...
  • Page 109 APPENDIX D — WIRING DIAGRAMS Fig. Z — 50HC*D12 PAC Control Diagram — 230/460/575-3-60 with Humidi-MiZer ® System...
  • Page 110 APPENDIX D — WIRING DIAGRAMS Fig. AA — 50HC*D14 PAC Control Diagram — 230/460/575-3-60 with Humidi-MiZer ® System...
  • Page 111 APPENDIX D — WIRING DIAGRAMS ® Fig. AB — 50HC*A04-A06 PAC Power Diagram — 208/230-1-60 with Humidi-MiZer System...
  • Page 112 APPENDIX D — WIRING DIAGRAMS ® Fig. AC — 50HC*A04-A06 PAC Power Diagram — 208/230/460-3-60 with Humidi-MiZer System...
  • Page 113 APPENDIX D — WIRING DIAGRAMS ® Fig. AD — 50HC*A04-A06 PAC Power Diagram — 575-3-60 with Humidi-MiZer System...
  • Page 114 APPENDIX D — WIRING DIAGRAMS Fig. AE — 50HC*A07 PAC Power Diagram — 208/230/460-3-60 with Humidi-MiZer ® System...
  • Page 115 APPENDIX D — WIRING DIAGRAMS Fig. AF — 50HC*A07 PAC Power Diagram — 575-3-60 with Humidi-MiZer ® System...
  • Page 116 APPENDIX D — WIRING DIAGRAMS ® Fig. AG — 50HC*D08-D09 PAC Power Diagram — 208/230/460-3-60 with Humidi-MiZer System...
  • Page 117 APPENDIX D — WIRING DIAGRAMS Fig. AH — 50HC*D08-D09 PAC Power Diagram — 575-3-60 with Humidi-MiZer ® System...
  • Page 118 APPENDIX D — WIRING DIAGRAMS ® Fig. AI — 50HC*D11 PAC Power Diagram — 208/230-3-60 with Humidi-MiZer System...
  • Page 119 APPENDIX D — WIRING DIAGRAMS Fig. AJ — 50HC*D11 PAC Power Diagram — 460-3-60, 575-3-60 with Humidi-MiZer ® System...
  • Page 120 APPENDIX D — WIRING DIAGRAMS Fig. AK — 50HC*D12 PAC Power Diagram — 208/230-3-60, 460-3-60, 575-3-60 with Humidi-MiZer ® System...
  • Page 121 APPENDIX D — WIRING DIAGRAMS Fig. AL — 50HC*D14 PAC Power Diagram — 208/230-3-60 with Humidi-MiZer ® System...
  • Page 122 APPENDIX D — WIRING DIAGRAMS ® Fig. AM — 50HC*D14 PAC Power Diagram — 460-3-60 with Humidi-MiZer System...
  • Page 123 APPENDIX D — WIRING DIAGRAMS ® Fig. AN — 50HC*D14 PAC Power Diagram — 575-3-60 with Humidi-MiZer System...
  • Page 124 APPENDIX D — WIRING DIAGRAMS Fig. AO — PremierLink™ System A04-A06 Wiring Diagram...
  • Page 125 APPENDIX D — WIRING DIAGRAMS Fig. AP — RTU Open System Control A04-A06 Wiring Diagram...
  • Page 126 APPENDIX D — WIRING DIAGRAMS Fig. AQ — PremierLink™ System A07 - D14 Wiring Diagram...
  • Page 127 APPENDIX D — WIRING DIAGRAMS Fig. AR — RTU Open A07-D14 Wiring Diagram...
  • Page 128 APPENDIX E — MOTORMASTER® SENSOR LOCATIONS Fig. AU — 50HC*A07 and 50HC*D07 Outdoor Circuiting Fig. AS — 50HC*A04 Outdoor Circuiting Fig. AV — 50HC*A08 Outdoor Circuiting Fig. AT — 50HC*A05/06 Outdoor Circuiting...
  • Page 129 APPENDIX E — MOTORMASTER® SENSOR LOCATIONS SENSOR LOCATION TIE WRAP 9.0” C12492 Fig. AY — 50HC*D08 Motormaster ® Sensor Location Fig. AW — 50HC*A09 Outdoor Circuiting ® — Novation Coils (MCHX) SENSOR SENSOR LOCATION LOCATION SENSOR LOCATION TIE WRAP CIRCUIT A CIRCUIT B Fig.

  • Page 130: Form 50Hc-4-14-02Sm Rev. A

    Smoke detector 27, 28 Wiring overlay 32 VFD overlay 33 © Carrier Corporation 2019 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500188-01 Printed in U.S.A.
  • Page 131 UNIT START-UP CHECKLIST (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 Service and Maintenance Instructions document.
  • Page 132 10. Restore set-points for thermostat and humidistat (Y/N) _____ REPEAT PROCESS FOR 2 COMPRESSOR SYSTEMS. © Carrier Corporation 2019 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500188-01 Printed in U.S.A.

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Weathermaster 50hc14Weathermaster 50hc05Weathermaster 50hc06

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