Carrier WeatherMaker 50FC 16 Series Installation Instructions Manual
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Carrier WeatherMaker 50FC 16 Series Installation Instructions Manual

Carrier WeatherMaker 50FC 16 Series Installation Instructions Manual

Single package rooftop cooling only with puron® (r-410a) refrigerant and ecoblue™ fan technology
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . 2
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . . 6
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . . 7
Step 5 - Field Fabricate Ductwork . . . . . . . . . . . . . . 7
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . . . . 9
Step 8 - Install Outside Air Hood . . . . . . . . . . . . . . 10
Electric Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500349-01
Installation Instructions
Page
Printed in U.S.A.
Form No. 50FC-16-02SI Rev. A
WeatherMaker
Single Package Rooftop Cooling Only
with Puron
and EcoBlue™ Fan Technology
• DEHUM/MECH COOLING (SUBCOOLING) MODE
EconomizerONE (Factory Option) . . . . . . . . . . . . . .27
Step 12 - Install Accessories . . . . . . . . . . . . . . . . .49
Step 13 - Fan Speed Set Up . . . . . . . . . . . . . . . . . .49
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . .CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified service personnel should install, repair, or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of
cleaning coils and filters and replacing filters. All other operations
should be performed by trained service personnel. When working
on air-conditioning equipment, observe precautions in the
literature, tags and labels attached to the unit, and other safety
precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguisher
available for all brazing operations.
It is important to recognize safety information. This is the
safety-alert symbol
. When you see this symbol on the unit and
in instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices, which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability,
or operation.
Pg 1
®
50FC-*16
®
(R-410A) Refrigerant
4-24
Replaces: 50FC-16-01SI

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Summary of Contents for Carrier WeatherMaker 50FC 16 Series

  • Page 1: Table Of Contents

    ® WeatherMaker 50FC-*16 Single Package Rooftop Cooling Only with Puron ® (R-410A) Refrigerant and EcoBlue™ Fan Technology Installation Instructions • DEHUM/MECH COOLING (SUBCOOLING) MODE CONTENTS • DEHUMIDIFICATION (HOT GAS REHEAT) MODE Page • REHEAT CONTROL SAFETY CONSIDERATIONS ....1 EconomizerONE (Factory Option) .

  • Page 2: General

    DANGER CAUTION ELECTRICAL SHOCK HAZARD PERSONAL INJURY HAZARD Failure to follow this warning will result in personal injury or Failure to follow this caution may result in personal injury. death. Sheet metal parts may have sharp edges or burrs. Use care and Before performing service or maintenance operations on unit, wear appropriate protective clothing, safety glasses and gloves turn off main power switch to unit and install lock(s) and...
  • Page 3 Position: 9 10 11 12 13 14 15 16 17 18 Example: Unit Heat Type Packaging & Compliance 50 = Cooling with Optional Electric Heat 0 = Standard Packaged Rooftop 1 = LTL Electrical Options Model Series - WeatherMaker ® A = None FC = Standard Efficiency (EcoBlue™...
  • Page 4 Fig. 2 — 50FC-*16 Unit Dimensional Drawing...
  • Page 5 Fig. 2 — 50FC-*16 Unit Dimensional Drawing (cont)

  • Page 6: Installation

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

  • Page 7: Curb-Mounted Installation

    CURB-MOUNTED INSTALLATION SLAB MOUNT (HORIZONTAL UNITS ONLY) Install curb Provide a level concrete slab that extends a minimum of 6 in. (150 mm) beyond unit cabinet. Install a gravel apron in front of Install field-fabricated ductwork inside curb condenser coil air inlet to prevent grass and foliage from obstruct- Install accessory thru-base service connection package ing airflow.
  • Page 8 Fig. 5 — 50FC-*16 Roof Curb Details...

  • Page 9: Step 6 - Rig And Place Unit

    Place All Gasket in Place Before Placing Unit on Roof Curb. (914-1371) “B” 36”-54” “C” Detail “A” Duct End “A” “A” See Detail “A” DIMENSIONS MAX WEIGHT UNIT 50FC-*16 2088 116.0 2945 53.0 1345 59.5 1510 NOTE(S): 1. Dimensions in () are in millimeters. 2.

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

    Step 7 — Convert to Horizontal and Connect 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 using accessory CRDUCTCV002A00. To convert to horizontal config- uration, remove screws from side duct opening covers and remove Remove Hood Parts...

  • Page 11: Economizer And Two-Position Damper Hood Setup

    ECONOMIZER AND TWO-POSITION DAMPER HOOD SETUP Panel NOTE: If the power exhaust accessory is to be installed on the unit, the hood shipped with the unit will not be used and must be discarded. Save the aluminum filter for use in the power exhaust Indoor Coil hood assembly.

  • Page 12: Step 10 - Make Electrical Connections

    Minimum Pitch 1 in. (25 mm) Per Base Rail 10 ft (3 m) of Line 3 in. (76 mm) Open Vent See Note To Roof Drain Roof Drain Plug Curb NOTE: Trap should be deep enough to offset maximum unit static difference.

  • Page 13: Field Wiring

    Electric Disconnect Switch Copper Wire Only Aluminum Wire Fig. 22 — Disconnect Switch and Unit Units Without Disconnect Option Fig. 20 — Mounting Position for Field Disconnects Disconnect (over 100A) 208/230-3-60 460-3-60 575-3-60 Units With Disconnect Option Optional Factory Disconnect Wiring Switch Disconnect factory test leads;...

  • Page 14: Units With Factory-Installed Non-Fused  Disconnect

    Fig. 24 — Location of Non-Fused Disconnect Enclosure Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Carrier warranty. UNITS WITH FACTORY-INSTALLED NON-FUSED  DISCONNECT The factory-installed optional non-fused disconnect (NFD) switch is located in a weatherproof enclosure located under the main con- trol box.

  • Page 15: Units Without Factory-Installed Non-Fused Disconnect

    UNITS WITHOUT FACTORY-INSTALLED NON-FUSED heads at the keyhole slots and align with the gasket; tighten the two screws until snug (do not over-tighten). DISCONNECT Mount the weatherproof cover to the backing plate as shown in When installing units, provide a disconnect switch per NEC Fig.

  • Page 16: All Units

    1/2 in. Electrical Bulkhead Connector 1-1/2 in. Electrical Bulkhead Connector Fig. 30 — Thru-the-Base Option, Shipping Position Remove the “L” bracket assembly from the unit. Remove connector plate assembly from the “L” bracket UNIT CONNECT PRIMARY TRANSFORMER and discard the “L” bracket, but retain the washer head VOLTAGE CONNECTIONS TERMINALS...

  • Page 17: Electric Heaters

    Set heat anticipator settings at 0.14 amp for the first stage and 0.14 This device can be a thermostat (field-supplied) or a SystemVu™ amp for second-stage heating, when available. controller (available as factory-installed option for use on a Carrier Comfort Network or as a stand-alone control). All filed added ®...

  • Page 18: Single Point Boxes And Supplementary Fuses

    Single Center Vane Axial Point Box Post Indoor Fan System Control Box Non-Fused Disconnect* Manual Reset Convenience Limit Switch Outlet* Heater Mounting Bracket Control Wire Heater * Factory-Installed Option. Terminal Block (Cover Removed) Fig. 34 — Component Location Heater Module Fig.

  • Page 19: Low-Voltage Control Connections

    RH above control setpoint) or a com- Pull the low-voltage control leads from the heater module — bination thermostat-humidistat control device such as Carrier’s WHT, VIO and BRN to the 4-pole terminal board TB4 located on Edge ®...

  • Page 20: Typical Unit Wiring Diagrams

    Connecting the Carrier Humidistat (HL38MG029) Connecting the Thermidistat device (33CS2PPRH-01) Route the humidistat 2-conductor cable (field-supplied) Route the Thermidistat multi-conductor thermostat cable through the bushing the unit’s louvered end panel. (field-supplied) through the bushing the unit’s louvered end panel. Route the cable through the snap-in wire tie and up to the Route the cable through the snap-in wire tie and up to the web bushing near the control box.
  • Page 21 Fig. 42 — 50FC-*16 Typical Control Wiring Diagram, Electro-Mechanical with POL224 Controller...
  • Page 22 Fig. 43 — 50FC-*16 Typical Control Wiring Diagram, SystemVu™ Controller...
  • Page 23 Fig. 44 — 50FC-*16 Typical Power Wiring Diagram – 208/230, 460-3-60 Unit Shown...
  • Page 24 Fig. 45 — 50FC-*16 Typical Power Wiring Diagram – 575-3-60 Unit Shown...

  • Page 25: Humidi-Mizer Dehumidification System

    Humidi-MiZer Dehumidification System  DEHUM/MECH COOLING (SUBCOOLING) MODE (Optional) This mode increases the latent heat removal and decreases sen- sible cooling compared to normal cooling. This occurs when Units with the factory-installed Humidi-MiZer system option there is a cooling and dehumidification demands. are capable of providing multiple modes of improved dehu- midification as a variation of the normal cooling cycle.
  • Page 26 Indoor Supply Valve 3-Way Valve Condenser Coil Hot Gas Reheat Coil Outdoor Air Expansion Valve (TXV) Compressor Evaporator Coil = Closed Valve = Open Valve Indoor Return Air = 3-Way Valve Fig. 47 — Subcooling Mode – Humidi-MiZer System for 50FC**16 Indoor Supply Valve 3-Way...

  • Page 27: Economizerone (Factory Option)

    LED Indication EconomizerONE (Factory Option) NOTE: If different faulty events occur at the same time, the ECONOMIZER SETTINGS sensor/DAC LED lights up following this priority: Red  Interface Overview Yellow  Off. For example, if there is a humidity sensor error and air temperature failure at the same time, the sensor LED EconomizerONE turns red rather than yellow.
  • Page 28 Table 4 — LED Indication FREE SENSOR Power STATUS COOLING DAC LED Yellow Yellow Yellow Commissioning mode Blinking Blinking Blinking Power start-up Yellow On Yellow On Yellow On Free cooling is running Green On — — Free cooling is available Green —...
  • Page 29 Table 5 — Free Cooling Functions CONTROL MODE SENSORS USED ENABLE FREE COOLING? The outside air dry bulb temperature is compared with the set temperature OA (Outside Air) temperature sensor Control Mode 1 shutoff set point. • Fixed Dry Bulb If the outside air dry bulb temperature is below the temperature shutoff set MA (Mixed Air) temperature sensor point, then the outside air is used to meet all or part of the cooling demand.
  • Page 30 Table 6 — 1 and 2-Stage Cooling Stage I/O Logic Table 9 — Different Fan Speeds with Different Configured Outputs ECONOMIZER COOLING COOLING CONDITION MET STAGE 1 STAGE 2 FAN TYPE 1-SPEED COOLING 2-STAGE COOLING • Spd H (regardless of •...
  • Page 31 Table 11 — Different Damper Position Setting with Different Configured Outputs (DCV is Enabled) FAN TYPE 1-STAGE COOLING 2-STAGE COOLING • 2VENTMIN H to 2VENTMAX H (regardless of • 2VENTMIN H to 2VENTMAX H (regardless of 1-SPEED FAN cooling demand, OCC=Yes) cooling demand, OCC=Yes) 2VENTMIN L to 2VENTMAXL ...
  • Page 32 • If Exhaust Fan 2 is connected and configured, then Fault Detection and Diagnostics Exhaust Fan 2 parameter group (L, M, and H) is available, The economizer controller can detect and diagnose free cool- depending on fan configuration. ing faults, sensor operation faults, and damper modulating •...

  • Page 33: Wiring

    WIRING WARNING Failure to follow this caution may result in damage to equipment. Be sure to allow enough time for compressor startup and shutdown between checkout tests so that the compressors do not short-cycle.  Mounting Devices Connected to the Economizer Controller Devices like damper actuators, sensors (temperature sensor, hu- midity sensor, combination temperature and humidity sensor, CO...
  • Page 34 Table 13 — Economizer Control Wiring Settings LABEL TYPE DESCRIPTION RS485 Modbus A Line A RS485 Modbus B Line B ¬ GND_ISO Earth Ground Type II NTC 10K or 0-10 vdc Mixed or Discharge Air Temperature Sensor Mixed or Discharge Air Temperature Sensor Common Type II NTC 10K or 0-10 vdc Outside Air Temperature Sensor 0-10 vdc or 4-20mA...
  • Page 35 Connecting Peripheral Devices to the Economizer Controller See Fig. 56-60 for wiring details. • Outside Air: Connect to the Mixed or Discharge Air Temperature Sensor OAT and COM terminals of the Outside Air Temperature Sensor device. • Return Air (Differential): Return Air Temperature Sensor Connect to the RAT and S-COM...
  • Page 36 • Outside Combination Temperature/ Humidity: Connect Combo Temperature and Humidity Sensor to the OAT, COM, and OAH terminals of the device. • Combo Temperature and Humidity Sensor Return Combination Temperature/ Humidity: Connect to the RAT, S-COM, and RAH terminals of the device. Fig.

  • Page 37: Setup And Configuration

    SETUP AND CONFIGURATION NOTE: Parameters and display menus may display differently/dynamically if different applications are config- ured. See Tables 14-21. IMPORTANT: Before setup and configuration, it is recom- mended to obtain some location-based values, such as shutoff points, or utilize the location services in the Climatix ™...
  • Page 38 Table 14 — Status Display PARAMETER DESCRIPTION VALUE 1FREECOOL Indicates if the system can use outdoor air for free cooling. 1ECON ENAB Indicates if outdoor air is being used for the first stage of cooling. Indicates if the space is occupied. If users choose ALWAYS for 6OCC when configuring I/Os, the parameter value is YES;...
  • Page 39 Table 15 — Parameter Settings — Basic PARAMETER DESCRIPTION RANGE DEFAULT Temperature shutoff set point can be obtained automatically if a smartphone or tablet is connected to the network provided by a Wi-Fi/WLAN stick 2 TEMP OFF plugged into the Economizer Controller and the mobile application is 48...80°F;...
  • Page 40 Table 16 — Parameter Settings — Advanced PARAMETER DESCRIPTION VALUE/RANGE DEFAULT 3FREEZE POS Anti-freeze protection damper position (closed or minimum). 3SD ACT POS Damper position during shutdown (open or closed). MAT sensor location: • Choose MAT if the sensor is installed before the DX (Direct Expansion) coil. 3DIF T LOC •...
  • Page 41 Table 17 — Parameter Settings — I/O Configurations (cont) PARAMETER DESCRIPTION VALUE DEFAULT Choose ACT FB if feedback signal is available from the connected damper ACT FB 6AUX-AI2 ACT FB actuator. Otherwise, choose NONE. NONE Choose “COOL 2” if Cooling Stage 2 is available (another compressor is COOL 2 6Y2O COOL 2...

  • Page 42: Installing Optional Hh57Lw001 Single Outside Air Enthalpy Sensor

    Table 20 — Enter Running State PARAMETER DESCRIPTION 8RUN STATE Change to Running State. Press Enter to confirm the change. 8ENTER RUN? Confirm the change to Running State. Perform factory reset. Press Enter to confirm the reset. (This action resets the controller 8FACTORY DEF password to default: OneBT.) 8DEF CONFIRM?
  • Page 43 Fig. 61 — HH57LW001 Dimensional, Connection and Switching Information Fig. 62 — HH79NZ039 Dry Bulb and Mixed Air Sensor Wiring Economizer Actuator Outside Air (This End) Damper Wiring Harness Return Air Damper Fig. 63 — EconomizerONE System Component Locations Fig. 64 — California Title 24 Zones...
  • Page 44 U.S. and Canada I-Codes / ASHRAE Zones Climate Zone 1 Climate Zone 5 and Marine Climate Zone 2 Climate Zone 6 Climate Zone 3 Climate Zone 7 and 8 Climate Zone 4 (Except Marine) Fig. 65 — U.S. and Canada Climate Zones Table 22 —...
  • Page 45 Economizers are shipped standard with an HH79NZ039 outside Table 23 — California Title 24 Regional High Limit air dry bulb sensor (refer to Fig. 62). System default setting (high Dry Bulb Temperature Settings temp limit) is 63°F (17°C) and has a range of 48°F to 80°F (9°C to REQUIRED HIGH LIMIT 27°C).

  • Page 46: Checkout

    CHECKOUT NOTE: All settings are stored in non-volatile flash memory. Status Inspect all wiring connections at the economizer module’s termi- nals, and verify compliance with the installation wiring diagrams. Use the Status menu (refer to Table 14) to check the parameter For checkout, review the Status of each configured parameter and values for the various devices and sensors configured.

  • Page 47: Troubleshooting

    TROUBLESHOOTING For EconomizerONE troubleshooting issues, see Table 25. Table 25 — Operating Issues and Concerns SYMPTOM REASON SOLUTION An alarm is displayed on the Sensor, damper, or the whole working Check sensor, damper, or the whole working system following the detailed alarm information. system may not work properly DAC LED is blinking RED Damper slippage...

  • Page 48: Systemvu™ Controller (Factory Option)

    ADDITIONAL APPLICATION DATA SystemVu™ Controller (Factory Option) For details on operating 50FC-*16 units equipped with the Refer to the application data sheet titled “Factory-Installed Smoke factory-installed SystemVu controller option, refer to the FC/GC Detector, for Small and Medium Rooftop Units 2 to 25 Tons” for Series Single Package Rooftop Units with SystemVu Controller discussions on additional control features of these smoke detectors Controls, Start-up, Operation and Troubleshooting manual.

  • Page 49: Step 11 - Adjust Factory-Installed Options

    Then add vdc for any accessories installed per the “Field Step 11 — Adjust Factory-Installed Options Accessories” section of the label. SMOKE DETECTORS NOTE: The Fan Speed Set Up labels are located on the High Smoke detector(s) will be connected at the Unit Control Board Voltage cover in the Control Box.
  • Page 50 ESP in. wg Factory Setting: Calculator 9.0 V 3000 Field Setting: 3250 Record field setting here 3500 3750 4000 Switch Range: 4250 4500 4.1 - 7.5 4750 10.0 6.9 - 8.7 5000 7.7 - 10.0 Field Accessories: Economizer * Overlap in A, B, C switch range designed for maximum field adjustment potential.

  • Page 51: Units With Systemvu™ Controls

    UNITS WITH SYSTEMVU™ CONTROLS Use the DOWN arrow key highlight the UNIT CONFIGU- RATIONS menu then press ENTER. On units equipped with the factory-installed SystemVu control- ler, the Fan Speed settings are accessed through the SystemVu Highlight UNIT CONFIGURATIONS then press ENTER. interface.
  • Page 54 © 2024 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500349-01 Printed in U.S.A. Form No. 50FC-16-02SI Rev. A Pg 54 4-24 Replaces: 50FC-16-01SI...

  • Page 55: Start-Up Checklist

    START-UP CHECKLIST 50FC**16 Single Packaged Rooftop Electric Cooling 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 56 (Y/N) _____ 10. Restore setpoints for thermostat and humidistat (Y/N) _____ © 2024 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500349-01 Printed in U.S.A.

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