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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

Printed in U.S.A.

Form 50JC-4-6-01SI

Pg 1 

5-2020

Replaces: New

Installation Instructions

CONTENTS

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1
MODEL NUMBER NOMENCLATURE AND 

DIMENSIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Step 1 — Plan for Unit Location

. . . . . . . . . . . . . . . . . 7

• ROOF MOUNT

Step 2 — Plan for Sequence of Unit Installation

. . . . 7

• CURB-MOUNTED INSTALLATION

• PAD-MOUNTED INSTALLATION

• FRAME-MOUNTED INSTALLATION

Step 3 — Inspect Unit

 . . . . . . . . . . . . . . . . . . . . . . . . . 7

Step 4 — Provide Unit Support

. . . . . . . . . . . . . . . . . . 7

• ROOF CURB MOUNT

• SLAB MOUNT (HORIZONTAL UNITS ONLY)

• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR 

SLAB MOUNT)

Step 5 — Field Fabricate Ductwork

 . . . . . . . . . . . . . . 9

• UNITS WITH ACCESSORY OR OPTIONAL ELECTRIC 

HEATERS

Step 6 — Rig and Place Unit

. . . . . . . . . . . . . . . . . . . . 9

• POSITIONING ON CURB

Step 7 — Convert to Horizontal and Connect 

Ductwork (When Required). . . . . . . . . . . . . . . . . . 10

Step 8 — Install Outside Air Hood

 . . . . . . . . . . . . . . 11

• ECONOMIZER HOOD PACKAGE REMOVAL AND 

SETUP (FACTORY OPTION)

• ECONOMIZER HOOD

Step 9 — Units with Hinged Panels Only

. . . . . . . . . 12

Step 10 — Install External Condensate Trap and

Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Step 11 — Make Electrical Connections

 . . . . . . . . . 13

• FIELD POWER SUPPLY

• UNITS WITH FACTORY-INSTALLED NON-FUSED 

DISCONNECT OR HACR

• UNITS WITHOUT FACTORY-INSTALLED 

NON

-

FUSED DISCONNECT OR HACR

• ALL UNITS

• CONVENIENCE OUTLETS

• HACR AMP RATING

• FACTORY OPTION THRU-BASE CONNECTIONS

• UNITS WITHOUT THRU-BASE CONNECTIONS 

(ELECTRICAL CONNECTIONS)

• FIELD CONTROL WIRING

• SPACE TEMPERATURE SENSOR (SPT)

• THERMOSTAT

• HEAT ANTICIPATOR SETTINGS

• HUMIDI-MIZER® CONTROL CONNECTIONS

• ELECTRIC HEATERS

• TYPICAL UNIT WIRING DIAGRAMS

SystemVu™ Controller

 . . . . . . . . . . . . . . . . . . . . . . . 24

Controller Options  . . . . . . . . . . . . . . . . . . . . . . . . . . .24

• LOW AMBIENT

Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Step 12 — Adjust Factory-Installed Options

 . . . . . .25

• SMOKE DETECTORS

Step 13 — Install Accessories

. . . . . . . . . . . . . . . . . .25

Step 14 — Fan Speed Set Up

. . . . . . . . . . . . . . . . . . .26

• SYSTEMVU™ CONTROLS

START-UP CHECKLIST  . . . . . . . . . . . . . . . . . . . . .CL-1

SAFETY CONSIDERATIONS

Improper  installation,  adjustment,  alteration,  service,

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.

DANGER

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.

WeatherExpert

®

50JC04-06

Ultra High Efficiency Single Package Rooftop

Cooling Only/Electric Heat Unit with Puron

®

 (R-410A)

Содержание WeatherExpert Puron 50JC04

Страница 1: ...lation adjustment alteration service 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 ind...

Страница 2: ...e R 22 service equipment or components on R 410A refrigerant equipment WARNING PERSONAL INJURYAND ENVIRONMENTAL HAZARD Failure to follow this warning could cause personal injury or death Relieve pressure and recover all refrigerant before system repair or final unit disposal Wear safety glasses and gloves when handling refrigerants Keep torches and other ignition sources away from refriger ants an...

Страница 3: ...Guard S Cu Cu Cu Cu Louvered Hail Guard Voltage 1 575 3 60 5 208 230 3 60 6 460 3 60 Design Revision Factory Design Revision Base Unit Controls 3 SystemVu Controls Standard all units Air Intake Exhaust Options A None B Temperature EconoMi er 2 w Barometric Relief F Enthalpy EconoMi er2 w Barometric Relief U Ultra Low Leak Temperature EconoMi er2 w Barometric Relief W Ultra Low Leak Enthalpy EconoM...

Страница 4: ...4 Fig 2 50JC 04 06 Unit Dimensional Drawing ...

Страница 5: ...5 Fig 2 50JC 04 06 Unit Dimensional Drawing cont ...

Страница 6: ...6 Fig 2 50JC 04 06 Unit Dimensional Drawing cont ...

Страница 7: ...8 Make electrical connections 9 Install other accessories PAD MOUNTED INSTALLATION 1 Prepare pad and unit supports 2 Check and tighten the bottom condensate drain connection plug 3 Rig and place unit 4 Convert unit to side duct connection arrangement 5 Install field fabricated ductwork at unit duct openings 6 Install outdoor air hood 7 Install condensate line trap and piping 8 Make electrical conn...

Страница 8: ... ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS SIZE DRAWING NUMBER REV T 005 Y 002 DRAFTER CHECKER D 48TC400427 B WEIGHT MMC 06 17 11 SHEET 5 OF 5 SURFACE FINISH MFG PURCH MODEL INTERNAL USE ONLY NEXT DRAWING SCALE DISTRIBUTION PURCH N A MMC NOTES 1 ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLED 2 INSULATED PANELS 25 4 1 THK POLYURETHANE FOAM 44 5 1 3 4 DENSITY 3 DIMENSIONS IN ARE IN MILLIMETERS ...

Страница 9: ...ing unit frame as a reference See Table 2 on page 7 and Fig 5 for additional information Lifting holes are provided in base rails as shown in Fig 5 Refer to rigging instructions on unit Rigging materials under the unit cardboard or wood to prevent base pan damage must be removed PRIOR to placing the unit on the roof curb Before setting the unit onto the curb recheck gasketing on curb POSITIONING O...

Страница 10: ...ld be secured to the flanges In sulate and weatherproof all external ductwork joints and roof or building openings with counter flashing and mastic in accor dance with applicable codes Do not cover or obscure visibility to the unit s informative data plate when insulating horizontal ductwork Fig 6 Horizontal Conversion Panels Fig 7 Location of Notches DETAIL A PLACE ALL SEAL STRIP IN PLACE BEFORE ...

Страница 11: ...nomizer 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 ECONOMIZER HOOD 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 ho...

Страница 12: ...ate pan and an alternate connection on the bot tom See Fig 15 Unit airflow configuration does not deter mine which drain connection to use Either drain connection can be used with vertical or horizontal applications Fig 15 Condensate Drain Pan Side View When using the standard side drain connection ensure that the red plug in the alternate bottom connection is tight Do this be fore setting the uni...

Страница 13: ...nnect or HACR and 4 0 AWG cop per only see Fig 17 per pole on terminal or fuse blocks on units with single point box See Fig 18 and unit label diagram for field power wiring connections NOTE Unit may be equipped with short test leads pigtails on the field line connection points on contactor C or optional discon nect switch These leads are for factory run test purposes only re move and discard befo...

Страница 14: ... Location Fig 20 NFD Handle and Shaft Assembly Field Install the HACR Shaft and Handle 1 Remove the control box access panel The HACR enclo sure is located below the control box see Fig 21 2 Remove 3 cap head screws that secure the HACR enclo sure 2 on the face of the cover and 1 on the left side cover See Fig 22 3 Remove the front cover of the HACR enclosure 4 Make sure the HACR shipped from the ...

Страница 15: ... size NOTE Units ordered with factory installed HACR do not need an additional ground fault and short circuit over current protective device unless required by local codes All field wiring must comply with the NEC and local requirements All units except 208 230v units are factory wired for the voltage shown on the nameplate If the 208 230v unit is to be connected to a 208v power supply the control...

Страница 16: ... box access panel See Fig 23 The primary leads to the convenience outlet transformer are not factory connected Selection of primary power source is a customer option If local codes permit the transformer primary leads can be connected at the line side terminals on the unit mounted non fused disconnect or HACR breaker switch this will provide service power to the unit when the unit disconnect switc...

Страница 17: ... pass through the basepan The 1 2 in bulkhead connector allows the high voltage power wires to pass through the basepan See Fig 30 Fig 29 Thru the Base Fitting Assembly Shown in Shipping Position Fig 30 Thru Base Connection Fittings 1 Remove the L bracket assembly from the unit 2 Remove connector plate assembly from the L bracket and discard the L bracket but retain the washer head screws and the ...

Страница 18: ...e button set point adjustment a LCD screen combination of humidity or CO2 sensing and communication tie in Space temperature can be also be written to from a building network or zoning system Figure 31 shows the wiring connections from the accessory space temperature sensors to the SystemVu MBB Fig 31 Typical Low Voltage SPT Connections Resistive Non Communicating Sensor Wiring For sensor with set...

Страница 19: ...r there is a space call for heat energizing the W1 terminal The accessory thermostats listed on the unit price pages can provide this signal but they are not configured to enable this signal as shipped Install the accessory thermostat according to installation in structions included with the accessory Fig 34 Typical Rnet Communication Sensor Wiring Locate the thermostat accessory on a solid wall i...

Страница 20: ...ntrol contact closes on rise in space RH above control setpoint See Fig 37 The humidistat is normally used in applications where a tem perature control is already provided units with SystemVu control Fig 37 Accessory Field Installed Humidistat Connecting the Carrier Humidistat HL38MG029 1 Route the humidistat 2 conductor cable field supplied through the hole provided in the unit corner post 2 Feed...

Страница 21: ...e field installed electric heat accessory All fuses on 50JC units are 60 A Note that all heaters are qualified for use with a 60 A fuse regardless of actual heater ampacity so only 60 A fuses are necessary Fig 42 Typical Single Point Installation Low Voltage Control Connections Pull the low voltage control leads from the heater module VIO and BRN two of each if a two circuit heater module is in st...

Страница 22: ...22 Fig 44 Typical 50JC 04 06 Control Wiring Diagram ...

Страница 23: ...23 Fig 45 Typical 50JC 04 06 Power Wiring Diagram 208 230 460V Unit Shown ...

Страница 24: ... to the 48 50JC Series Single Package Rooftop Units with SystemVu Controller Controls Start up Operation and Troubleshooting manual Controller Options LOW AMBIENT Refer to the 48 58JC 04 06 Single Package Rooftop Units with SystemVu Controller Controls Start up Operation and Trou bleshooting manual for details on adjusting Cooling Lock Out setting and configure for the specific job requirements ...

Страница 25: ... that the elbow fitting is pointing down See Fig 48 Step 2 3 Screw the sensor and detector plate into its operating posi tion using screws from Step 1 See Fig 48 Step 3 4 Connect the flexible tube on the sampling inlet to the sam pling tube on the basepan Additional Application Data Refer to the application data document Factory Installed Smoke Detectors for Small and Medium Rooftop Units 2 to 25 ...

Страница 26: ...ght UNIT CONFIGURATIONS then press ENTER 7 Highlight INDOOR FAN and then press ENTER 8 Refer to the job specifications to set the following deter mining the values per the RPM Calculator label see Fig 49 Use the UP and DOWN arrow keys and the BACK key to set the values Press ENTER after setting each value to continue to the next selection IDF VENT SPD IDF HEAT SPD IDF LOW COOL SPD IDF HIGH SPD IDF...

Страница 27: ...Y N _____ Verify that all electrical connections and terminals are tight Y N _____ Check that indoor air filters are clean and in place Y N _____ Check that outdoor air inlet screens are in place Y N _____ Verify that unit is level Y N _____ Verify that fan assembly is free of obstructions and rotor spins freely Y N _____ Verify that scroll compressors are rotating in the correct direction Y N ___...

Страница 28: ...tlet or reheat coil _______________ F E Confirm correct rotation for compressor Y N _____ F Check for correct ramp up of outdoor fan motor as condenser coil warms Y N _____ 3 Switch unit to high latent mode sub cooler by closing humidistat with Y1 closed Y N _____ 4 Check unit charge per charging chart Y N _____ OBSERVE A Reduction in suction pressure 5 to 7 psi expected Y N _____ B Discharge pres...

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