Carrier WeatherExpert Puron 50JC04 Installation Instructions Manual
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Carrier WeatherExpert Puron 50JC04 Installation Instructions Manual

Carrier WeatherExpert Puron 50JC04 Installation Instructions Manual

Ultra high efficiency single package rooftop cooling only/electric heat unit r-410a
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . . . 7
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . . . 7
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
Step 5 - Field Fabricate Ductwork . . . . . . . . . . . . . . 9
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . . . . . 9
Ductwork (When Required). . . . . . . . . . . . . . . . . . 10
Step 8 - Install Outside Air Hood . . . . . . . . . . . . . . 11
• ECONOMIZER HOOD PACKAGE REMOVAL AND
(ELECTRICAL CONNECTIONS)
• SPACE TEMPERATURE SENSOR (SPT)
SystemVu™ Controller . . . . . . . . . . . . . . . . . . . . . . . 24
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500274-01
Ultra High Efficiency Single Package Rooftop
Cooling Only/Electric Heat Unit with Puron
Installation Instructions
Printed in U.S.A.
Form 50JC-4-6-01SI
Controller Options . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
• SMOKE DETECTORS
Step 13 - Install Accessories . . . . . . . . . . . . . . . . . .25
Step 14 - Fan Speed Set Up . . . . . . . . . . . . . . . . . . .26
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
building codes and appropriate national electrical codes (in USA,
ANSI/NFPA70, National Electrical Code (NEC); in Canada, CSA
C22.1) for special requirements.
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.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning will result in personal injury
or death.
Before performing service or maintenance operations on
unit, turn off main power switch to unit and install lock(s)
and lockout tag(s). Ensure electrical service to rooftop unit
agrees with voltage and amperage listed on the unit rating
plate. Unit may have more than one power switch.
Pg 1
WeatherExpert
50JC04-06
(R-410A)
®
adjustment,
alteration,
DANGER
5-2020
Replaces: New
®
service,

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Summary of Contents for Carrier WeatherExpert Puron 50JC04

  • Page 1: Table Of Contents

    WeatherExpert ® 50JC04-06 Ultra High Efficiency Single Package Rooftop Cooling Only/Electric Heat Unit with Puron (R-410A) ® Installation Instructions CONTENTS Controller Options ......24 •...

  • Page 2: Model Number Nomenclature And

    WARNING CAUTION UNIT OPERATION AND SAFETY HAZARD PERSONAL INJURY HAZARD Failure to follow this warning could cause personal injury, Failure to follow this caution may result in personal injury. death and/or equipment damage. Sheet metal parts may have sharp edges or burrs. Use care R-410A refrigerant systems operate at higher pressures than and wear appropriate protective clothing, safety glasses and standard R-22 systems.
  • Page 3 Position: 9 10 11 12 13 14 15 16 17 18 – – Example: Unit Heat Type Factory Assigned 50 - Electric/Electric Packaged 0 = Standard Rooftop 1 = LTL ® Model Series - WeatherExpert Electrical Options JC - Ultra High Efficiency A = None B = HACR Breaker C = Non-Fused Disconnect (NFD)
  • Page 4 Fig. 2 — 50JC 04-06 Unit Dimensional Drawing...
  • Page 5 Fig. 2 — 50JC 04-06 Unit Dimensional Drawing (cont)
  • Page 6 Fig. 2 — 50JC 04-06 Unit Dimensional Drawing (cont)

  • Page 7: Installation

    4. Prepare bottom condensate drain connection to suit INSTALLATION planned condensate line routing (refer to Step 10 — Install Jobsite Survey External Condensate Trap and Line on page 12 for details) Complete the following checks before installation. 5. Rig and place unit 1.
  • Page 8 ROOF CURB NOTES: POWER WIRING CONTROL WIRING ACCESSORY CONVENIENCE CONNECTOR PKG. ACC. GAS CONNECTION TYPE GAS FITTING ACCESSORY # 1. ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLED. FITTING FITTING OUTLET WIRING CONNECTOR 2. INSULATED PANELS: 25.4 [1"] THK. POLYURETHANE FOAM, 44.5 [1-3/4] # DENSITY. 14"...

  • Page 9: Slab Mount (Horizontal Units Only)

    UNITS WITH ACCESSORY OR OPTIONAL ELECTRIC HEATERS All installations require a minimum clearance to combustible surfaces 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 10: Step 7 - Convert To Horizontal And Connect

    "B" DETAIL "A" 36"- 54" PLACE ALL SEAL STRIP IN PLACE REQUIRED (914-1371) BEFORE PLACING UNIT ON ROOF CURB. SPREADER BARS DUCT END "C" "A" SEE DETAIL "A" DIMENSIONS MAX WEIGHT UNIT 50JC-*04 74.5 1890 34.8 41.5 1055 50JC-*05 74.5 1890 34.8 41.5...

  • Page 11: Step 8 - Install Outside Air Hood

    SCREWS HOOD PARTS PLASTIC TIE WRAP QTY (2) DUCT COVERS SHEET METAL FACE UP SCREWS FOR METAL TRAY QTY (2) BASEPAN Fig. 10 — Economizer Hood Parts Location 3. Carefully lift the hood assembly (with metal tray) through the filter access opening and assemble per the steps out- lined in the following section, “Economizer Hood”.

  • Page 12: Step 9 - Units With Hinged Panels Only

    PANEL INDOOR COIL COMPRESSOR ACCESS PANEL OUTDOOR COIL DOOR LATCH LEFT HOOD SCREW SIDE 19 1/16” (483mm) Fig. 14 — Compressor Door Latch Location 33 3/8” (848mm) Step 10 — Install External Condensate Trap and Line HOOD DIVIDER The unit has one -in.

  • Page 13: Step 11 - Make Electrical Connections

    All units must have an external trap for condensate drainage. (copper only) per pole on contactors, #2ga AWG (copper only) Install a trap at least 4-in. (102 mm) deep and protect against per pole on optional disconnect or HACR, and 4/0 AWG (cop- freeze-up.
  • Page 14 6. Measure from the tip of the shaft to the top surface of the Units Without Single Point Box, Disconnect or HACR Option black pointer; the measurement should be 3.75 to 3.88-in. (95 to 99 mm). Equip GR Lug 7. Tighten the locking screw to secure the shaft to the NFD. 8.

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

    8. Install the handle on to the painted cover horizontally with single point box. See Fig. 18 and unit label diagram for field power wiring connections. the red arrow pointing to the left. 9. Secure the handle to the painted cover with (2) screws and Provide a ground fault and short circuit over-current protection lock washers supplied.
  • Page 16 5. Remove two slot fillers in the bottom of the cover to per- mit service tool cords to exit the cover. 6. Check for full closing and latching. GFCI RECEPTACLE COVER - WHILE-IN-USE NOT INCLUDED WEATHERPROOF Fig. 24 — Convenience Outlet Utilization Notice Label Installing Weatherproof Cover A weatherproof while-in-use cover for the factory-installed...

  • Page 17: Hacr Amp Rating

    -in. bulkhead connector enables the low-voltage control wires to pass through the basepan. The -in. bulkhead connector allows the high-voltage power wires to pass through the basepan. See Fig. 30. UNIT CONNECT PRIMARY TRANSFORMER VOLTAGE CONNECTIONS TERMINALS L1: RED + YEL H1 + H3 208, 230 L2: BLU + GRA...

  • Page 18: Units Without Thru-Base Connections

    TB5-2 ....... Sensor Common Carrier, resistive input non-communicating (T-55, T-56 and Space Temperature Sensor (T-56) T-59) and Rnet communicating (ZS) sensors.

  • Page 19: Thermostat

    J20-4 ......Sensor +12vdc Power THERMOSTAT O/B/Y2 Select a Carrier-approved accessory thermostat. When electric (Note 1) (Note 2)

  • Page 20: Heat Anticipator Settings

    For wire runs up to 50 ft (15 m), use no. 18 AWG (American Connecting the Carrier Humidistat (HL38MG029) Wire Gage) insulated wire [35°C (95°F) minimum]. For 50 to 1. Route the humidistat 2-conductor cable (field-supplied) 75 ft (15 to 23 m), use no. 16 AWG insulated wire [35°C through the hole provided in the unit corner post.

  • Page 21: Typical Unit Wiring Diagrams

    OPTIONAL FACTORY- MAIN SINGLE CENTER VANE AXIAL CONTROL WIRING INSTALLED CONTROL POINT POST INDOOR FAN DISCONNECT SYSTEM MANUAL RESET LIMIT SWITCH HEATER CONTROL WIRE HEATER MOUNTING TERMINAL BLOCK COVER BRACKET Fig. 40 — Typical Component Location FOAM POWER HEATER HEATER WIRING RELAY MOUNTING SCREWS...
  • Page 22 Fig. 44 — Typical 50JC 04-06 Control Wiring Diagram...
  • Page 23 Fig. 45 — Typical 50JC 04-06 Power Wiring Diagram (208/230, 460V Unit Shown)

  • Page 24: Systemvu™ Controller

    Fig. 46 — Typical 50JC 04-06 Power Wiring Diagram (575V Unit Shown) SystemVu™ Controller Controller Options For details on operating 50JC**04-06 units equipped with the LOW AMBIENT factory-installed SystemVu controller option, refer to the 48/50JC Refer to the 48/58JC 04-06 Single Package Rooftop Units with Series Single Package Rooftop Units with SystemVu Controller SystemVu Controller Controls, Start-up, Operation and Trou- Controls, Start-up, Operation and Troubleshooting manual.

  • Page 25: Smoke Detectors

    Completing Return Air Smoke Sensor Installation Smoke Detectors 1. Unscrew the two screws holding the return-air smoke Smoke detectors are available as factory-installed options on 50JC models. Smoke detectors may be specified for supply air detector assembly. See Fig. 48, Step 1. Save the screws. only, for return air without or with economizer, or in combina- 2.

  • Page 26: Step 14 - Fan Speed Set Up

    2 Stage E Heat Fig. 49 — Example of Fan Speed Set Up Labels for SystemVu™ Controls © 2020 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
  • Page 27 START-UP CHECKLIST FOR 50JC04-06 SINGLE PACKAGE ROOFTOP COOLING ONLY/ELECTRIC HEAT UNIT (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 28 8. Open humidistat input compressor and outdoor fan stop; LSV and DSV solenoids de-energized (Y/N) _____ 9 Restore setpoints for thermostat and humidistat (Y/N) _____ © 2020 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

This manual is also suitable for:

Weatherexpert puron 50jc05Weatherexpert puron 50jc06

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