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Carrier WeatherMaker 50FCQ 08 Series Installation Instructions Manual
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Carrier WeatherMaker 50FCQ 08 Series Installation Instructions Manual

Carrier WeatherMaker 50FCQ 08 Series Installation Instructions Manual

Single package rooftop heat pump with puron (r-410a) refrigerant and ecoblue fan technology
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . 10
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . 10
Step 5 - Field Fabricate Ductwork . . . . . . . . . . . . . 12
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . . . 12
Ductwork (when required) . . . . . . . . . . . . . . . . . . 13
Step 8 - Install Outside Air Hood . . . . . . . . . . . . . . 14
and Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• UNIT WITHOUT THRU-BASE CONNECTION KIT
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500296-01
Installation Instructions
Page
Printed in U.S.A.
Form 50FCQ-8-12-01SI
WeatherMaker
Single Package Rooftop Heat Pump
®
with Puron
and EcoBlue™ Fan Technology
Controller Options . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Step 12 - Install Accessories . . . . . . . . . . . . . . . . .42
Step 13 - Fan Speed Set Up . . . . . . . . . . . . . . . . . .43
Typical Unit Piping . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . .49
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Improper
installation,
maintenance, or use can cause explosion, fire, electrical shock or
other conditions which may cause personal injury or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory-authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloths for brazing operations and have a fire
extinguisher available. Read these instructions thoroughly and
follow all warnings or cautions attached to the unit. Consult local
Pg 1
®
50FCQ*08-12
(R-410A) Refrigerant
adjustment,
alteration,
4-22
Replaces: New
service,

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Summary of Contents for Carrier WeatherMaker 50FCQ 08 Series

  • Page 1: Table Of Contents

    ® WeatherMaker 50FCQ*08-12 Single Package Rooftop Heat Pump ® with Puron (R-410A) Refrigerant and EcoBlue™ Fan Technology Installation Instructions CONTENTS EconoMi$er X (Factory-Installed Option) ..30 • PRODUCT DESCRIPTION Page • SYSTEM COMPONENTS SAFETY CONSIDERATIONS ....1 •...

  • Page 2: Model Number Nomenclature And Dimensions

    building codes and appropriate national electrical codes (in USA, ANSI/NFPA70, National Electrical Code (NEC); in Canada, CSA WARNING C22.1) for special requirements. It is important to recognize safety information. This is the safety- PERSONAL INJURY AND ENVIRONMENTAL alert symbol . When you see this symbol on the unit and in HAZARD instructions or manuals, be alert to the potential for personal Failure to follow this warning could cause personal injury or...
  • Page 3 Position: 9 10 11 12 13 14 15 16 17 18 Example: Unit/Series/Model Packaging & Seismic Compliance 50FCQ – Packaged Rooftop Heat Pump 0 = Standard Standard Efficiency with 1 = LTL EcoBlue™ Fan Technology Electrical Options Refrig. Systems Options A = None M = Two Stage Cooling, Single Circuit C = Non-Fused Disconnect (NFD)
  • Page 4 Fig. 2 — 50FCQ 08-09 Unit Dimensional Drawing...
  • Page 5 Fig. 2 — 50FCQ 08-09 Unit Dimensional Drawing (cont)
  • Page 6 Fig. 2 — 50FCQ 08-09 Unit Dimensional Drawing (cont)
  • Page 7 Fig. 3 — 50FCQ 12 Unit Dimensional Drawing...
  • Page 8 Fig. 3 — 50FCQ 12 Unit Dimensional Drawing (cont)
  • Page 9 Fig. 3 — 50FCQ 12 Unit Dimensional Drawing (cont)

  • Page 10: Installation

    Prepare bottom condensate drain connection to suit planned INSTALLATION condensate line routing (refer to Install External Condensate Jobsite Survey Trap and Line on page 15 for details) Complete the following checks before installation. Rig and place unit Consult local building codes and the NEC (National Elec- Install outdoor air hood trical Code) ANSI/NFPA 70 for special installation requirements.
  • Page 11 ROOFING MATERIAL [115.5] (FIELD SUPPLIED) THIS DOCUMENT AND THE INFORMATION CONTAINED THEREIN IS PROPRIETARY TO CARRIER CORPORATION AND SHALL NOT BE USED OR DISCLOSED TO OTHERS, IN WHOLE OR IN PART, SUPPLY AIR RETURN AIR WITHOUT THE WRITTEN AUTHORIZATION OF CARRIER CORPORATION.

  • Page 12: Slab Mount (Horizontal Units Only)

    FOR UNITS WITH ACCESSORY ELECTRIC HEATERS All installations require a minimum clearance to combustible sur- faces of 1 in. (25 mm) from duct for first 12 in. (305 mm) away from unit. Outlet grilles must not lie directly below unit discharge. WARNING PERSONAL INJURY HAZARD Failure to follow this warning could cause personal injury.

  • Page 13: Step 7 - Convert To Horizontal And Connect Ductwork (When Required)

    "B" Place All Seal Strip In Place Detail "A" 36"-54" Required Before Placing Unit On Roof Curb (914-1371) Spreader Bars Duct End "C" Side "A" See Detail "A" DIMENSIONS MAX WEIGHT UNIT 50FCQ*08 1314 88.0 2235 49.5 1255 49.5 1255 50FCQ*09 1341 88.0...

  • Page 14: Step 8 - Install Outside Air Hood

    ECONOMIZER HOOD SETUP Step 8 — Install Outside Air Hood NOTE: If the power exhaust accessory is to be installed on the ECONOMIZER HOOD PACKAGE REMOVAL  unit, the hood shipped with the unit will not be used and must be FACTORY OPTION) discarded.

  • Page 15: Step 9 - Install External Condensate Trap

    All units must have an external trap for condensate drainage. In- stall a trap at least 4 in. (102 mm) deep and protect against freeze- up. If drain line is installed downstream from the external trap, pitch the line away from the unit at 1 in. per 10 ft (25 mm in 3 m) of run.

  • Page 16: Field Power Wiring Connections

    FIELD POWER WIRING CONNECTIONS Tighten the locking screw to secure the shaft to the NFD. Field power wires are connected to the unit at line-side pressure Turn the handle to the OFF position with red arrow pointing lugs on compressor contactor C and indoor fan contactor IFC (see at OFF.

  • Page 17: Convenience Outlets

    Refer to unit informative data plate for MOCP (Maximum Over- Installing Weatherproof Cover current Protection) device size. A weatherproof while-in-use cover for the factory-installed conve- All field wiring must comply with the NEC and local nience outlets is now required by UL standards. This cover cannot requirements.

  • Page 18: Factory Option Thru-Base Connections

    Non-Powered Convenience Outlet FACTORY OPTION THRU-BASE CONNECTIONS This type requires the field installation of a general-purpose This service connection kit consists of a 1/2 in. electrical bulkhead 125-volt 15-A circuit powered from a source elsewhere in the connector and a 3/4 in. electrical bulkhead connector, connected to building.

  • Page 19: Field Control Wiring

    Place the gasket over the embossed area in the basepan, align- controller (available as factory-installed option for use on a Carrier Comfort Network ® or as a stand alone control). ing the holes in the gasket to the holes in the basepan. See Fig.

  • Page 20: Heat Anticipator Settings

    The DFB is located in the main control box of the 50FCQ unit (see Raceway Fig. 31). All connections are factory-made through harnesses to the UCB (unit control board) to the ECM (direct-drive motor), re- versing valve solenoids and to defrost thermostats. Refer to Table 4 for details of DFB Inputs and Outputs.
  • Page 21 Table 4 — 50FCQ Defrost Board I/O and Jumper Configurations POINT NAME TYPE OF I/O CONNECTION PIN NUMBER UNIT CONNECTION NOTE INPUTS G Fan DI, 24 vac P2-3 CTB-G Y1 Cool 1 DI, 24 vac P2-5 CTB-Y1 Y2 Cool 2 DI, 24 vac P2-4 CTB-Y2...

  • Page 22: Electric Heaters

    ELECTRIC HEATERS The 50FCQ units may be equipped with field-installed accessory electric heaters. The heaters are modular in design, with heater frames holding open coil resistance wires strung through ceramic insulators, line-break limit switches and a control contactor. Heater modules are installed in the compartment below the indoor (supply) fan outlet.

  • Page 23: Low-Voltage Control Connections

    LOW-VOLTAGE CONTROL CONNECTIONS Pull the low-voltage control leads from the heater module — WHT, VIO and BRN to the 4-pole terminal board TB4 located on the heater bulkhead to the left of the Heater module. Connect the WHT lead from Heater circuit #1 to terminal TB4-1. For 2 stage heating, connect the VIO lead from Heater circuit #2 to terminal TB4-2.
  • Page 24 Fig. 38 — Typical Control Wiring Diagram, Electro-Mechanical Controller with W7220 (50FCQ*08-09 230/460/575-3-60 Shown)
  • Page 25 Fig. 39 — Typical Control Wiring Diagram, Electro-Mechanical Controller with W7220 (50FCQ*12 230/460/575-3-60 Shown)
  • Page 26 Fig. 40 — Typical Control Wiring Diagram, SystemVu™ Controller (50FCQ*08-09 230/460/575-3-60 Shown)
  • Page 27 Fig. 41 — Typical Control Wiring Diagram, SystemVu™ Controller (50FCQ*12 230/460/575-3-60 Shown)
  • Page 28 Fig. 42 — Typical 50FCQ 08-09 Power Wiring Diagram, 230/460V-3-60 Shown...
  • Page 29 Fig. 43 — Typical 50FCQ 12 Power Wiring Diagram, 230/460V-3-60 Shown...

  • Page 30: Economi$Er X (Factory-Installed Option)

    User Interface EconoMi$er X (Factory-Installed Option) Provides status for normal operation, setup parameters, checkout PRODUCT DESCRIPTION tests, and alarm and error conditions with a 2-line 16 character The EconoMi$er ® X system is an expandable economizer control LCD display and four button keypad. system, which includes a W7220 economizer module (controller) Electrical with an LCD and keypad (see Fig.

  • Page 31: Economizer Module Wiring Details

    Storage Temperature: Table 7 — Economizer Module - Right Hand Terminal –40°F to 150°F (–40°C to 65°C) Blocks Shipping Temperature: LABEL TYPE DESCRIPTION –40°F to 150°F (–40°C to 65°C) Top Right Terminal Blocks Relative Humidity: AUX2 I 24 vac IN The first terminal is not used.

  • Page 32: Co2 Sensor Wiring

    To use the keypad when working with menus: Table 8 — HH57AC081 Sensor Wiring Terminations • Press the ▲ (Up arrow) button to move to the previous menu. TERMINAL TYPE DESCRIPTION • Press the ▼ (Down arrow) button to move to the next NUMBER LABEL menu.

  • Page 33: Setup And Configuration

    SETUP AND CONFIGURATION IMPORTANT: Table 10 illustrates the complete hierarchy. Before being placed into service, the W7220 economizer module Your menu parameters may be different depending on your must be setup and configured for the installed system. configuration. For example, if you do not have a DCV (CO ) sensor, then IMPORTANT: During setup, the economizer module is live none of the DCV parameters appear and only MIN POS will...
  • Page 34 Table 10 — W7220 Menu Structure PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT FIRST STAGE COOLING DEMAND (Y1–IN) ECONO 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 YES = outside air being used for 1 stage cooling...
  • Page 35 Table 10 — W7220 Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT MECH COOL ON Displays stage of mechanical cooling that is active. 0, 1, or 2 HEAT STAGES ON Displays the stage of heat pump heating that is active. STATUS SUPPLY FAN SPEED (cont)
  • Page 36 Table 10 — W7220 Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT 0°F to 50°F ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR ERV OAT SP 32°F (–18°C to 10°C); TEMPERATURE SETPOINT increment by 1°F Only displayed when AUX1 O = ERV Exhaust fan set point for single speed units.
  • Page 37 Table 10 — W7220 Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT COOLING STAGE 3 DELAY 0 min, 5 min, Delay after stage 2 cool has been active. Turns on second stage of 15 min, then cooling when economizer is first stage and mechanical cooling is STG3 DLY 2.0h...
  • Page 38 Table 10 — W7220 Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT DISCHARGE AIR S-BUS SENSOR ERROR DA SYLK T ERR Discharge air sensor has failed or become disconnected - check wiring then replace sensor if the alarm continues. OUTSIDE AIR TEMPERATURE SENSOR ERROR OA SENS T ERR Outdoor air temperature sensor has failed or become disconnected...

  • Page 39: Standard Or Single Speed Fan Operation

    STANDARD OR SINGLE SPEED FAN OPERATION The W (heating mode) is not controlled by the W7220 but it re- quires the status to know where to position the OA damper for FAN TYPE = 1 SPEED is not used on 50FCQ*08-12 units. minimum position for the fan speed.

  • Page 40: 2Sp H/C (2 Speed Heat/Cool) Speed Fan Operation

    2SP H/C (2 SPEED HEAT/COOL) SPEED FAN OPERATION Refer to Table 13 for ENTH CURVE set point values. The W7220 calculates the enthalpy and dew point using the OA FAN TYPE = 2SP H/C is not used on 50FCQ*08-12 units temperature and humidity input from the OA enthalpy sensor.

  • Page 41: Checkout

    CHECKOUT TROUBLESHOOTING Inspect all wiring connections at the economizer module’s termi- Alarms nals, and verify compliance with the installation wiring diagrams. The economizer module provides alarm messages that display on For checkout, review the Status of each configured parameter and the 2-line LCD.

  • Page 42: Completing Return Air Smoke Sensor  Installation

    ADDITIONAL APPLICATION DATA Refer to the application data document “Factory Installed Smoke Detectors for Small and Medium Rooftop Units 2 to 25 Tons” for Return Air Smoke Detetor discussions on additional control features of these smoke detectors (As Shipped) including multiple unit coordination. Step 11 —...

  • Page 43: Step 13 - Fan Speed Set Up

    Step 13 — Fan Speed Set Up UNITS WITH ELECTRO-MECHANICAL CONTROLS The Fan Speed set up controls are located on the lower section of the Unit Control Board (UCB). See Fig. 52 for location. Check the job specifications for the CFM (cubic feet per minute) and ESP (external static pressure) required.

  • Page 44: Units With Systemvu™ Controls

    ESP in. wg Factory Setting: Calculator 9.0 V 1500 Field Setting: 1625 Record field setting here 1750 1875 2000 Switch Range: 2125 10.0 2250 4.1 - 7.5 2375 6.9 - 8.7 2500 7.7 - 10.0 Field Accessories: Economizer * Overlap in A, B, C switch range 1 Stage E Heat designed for maximum field adjustment potential.
  • Page 45 ESP in. wg Calculator 1301 1477 1639 1788 1925 2054 2174 2289 1500 1381 1544 1699 1843 1976 2101 2220 2332 1625 1463 1615 1763 1902 2031 2152 2268 2378 1750 1548 1688 1828 1962 2087 2206 2318 1875 1633 1764 1897 2025...

  • Page 46: Typical Unit Piping

    Typical Unit Piping Table 17 — 50FCQ*12 – Cooling Mode Each heat pump system includes two compressors, a reversing valve, dual-function outdoor and indoor coils, a common liquid COMPONENT STATUS/POSITION line with bi-flow TXV, and dedicated cooling and heating TXVs. Reversing Valve Energized 50FCQ*08 and 09 unit outdoor coils contain a vapor header check...
  • Page 47 Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 55 — Piping Schematic — 50FCQ*08 Cooling Mode Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 56 — Piping Schematic — 50FCQ*08 Heating Mode...
  • Page 48 Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 57 — Piping Schematic — 50FCQ*09 Cooling Mode Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 58 — Piping Schematic — 50FCQ*09 Heating Mode...

  • Page 49: Pre-Start And Start-Up

    Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 59 — Piping Schematic — 50FCQ*12 Cooling Mode Filter Drier LPS/LOC Heating TXV Cooling TXV Reversing Valve Outdoor Coil Indoor Coil Fig. 60 — Piping Schematic — 50FCQ*12 Heating Mode Pre-Start and Start-Up This completes the mechanical installation of the unit.
  • Page 50 © 2022 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500296-01 Printed in U.S.A. Form 50FCQ-8-12-01SI Pg 50 4-22 Replaces: New...

  • Page 51: Preliminary Information

    START-UP CHECKLIST 50FCQ 08-12 Single Package Rooftop Heat Pump 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 52 © 2022 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500296-01 Printed in U.S.A. Form 50FCQ-8-12-01SI Pg CL-2 4-22 Replaces: New...

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