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50KC
Single Package Rooftop
Cooling Only
with Puronr (R---410A) Refrigerant
Sizes: 04, 05, 06
NOTE: Read the entire instruction manual before starting
the installation
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
Rated Indoor Airflow (cfm)
INSTALLATION
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Step 1 - - Plan for Unit Location
Roof Mount
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Step 2 - - Plan for Sequence of Unit Installation
Curb- - Mount Installation
Pad- - Mount Installation
Frame- - Mount Installation
Step 3 - - Inspect Unit
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Step 4 - - Provide Unit Support
Roof Curb Mount
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Slab Mount (Horizontal Units Only)
Alternate Unit Support
(In Lieu of Curb or Slab Mount)
Step 5 - - Field Fabricate Ductwork
For Units with Accessory Electric Heaters
Step 6 - - Rig and Place Unit
Positioning on Curb
Step 7 - - Convert to Horizontal and Connect
Ductwork
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Step 8 - - Install Outside Air Hood
Economizer and Two Position Damper Hood
Package Removal and Setup — Factory Option
Economizer Hood and Two- - Position Hood
Step 9 - - Units with Hinged Panels Only
Step 10 - - Install External Condensate Trap
and Line
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Step 11 - - Make Electrical Connections
Field Power Supply
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Units with Factory- - Installed
Non- - Fused Disconnect
Units without Factory- - Installed
Non- - Fused Disconnect
Installation Instructions
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All Units
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Convenience Outlets
Factory- - Option Thru- - Base Connections
Units without Thru- - Base Connections
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Field Control Wiring
3
Thermostat
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6
Unit without Thru- - Base Connection Kit
6
Heat Anticipator Settings
6
Electric Heaters
6
Single Point Boxes & Supplementary Fuses
7
Single Point Boxes without Fuses
7
Low- - Voltage Control Connections
7
Humidi- - MiZer
7
Humidi- - MiZer - - Space RH Controller
7
EconoMi$er X (Factory- - Installed Option)
7
PremierLinkt (Factory Option)
7
Supply Air Temperature (SAT) Sensor
Outdoor Air Temperature (OAT) Sensor
7
EconoMi$er2
9
Field Connections
9
Space Sensors
9
Connect Thermostat
9
Configure the Unit for Thermostat Mode
Economizer Controls
10
Indoor Air Quality (CO
11
Outdoor Air Quality Sensor
11
Space Relative Humidity Sensor or
Humidistat Connections
11
Smoke Detector/Fire Shutdown (FSD)
12
Filter Status Switch
12
Supply Fan Status Switch
13
Remote Occupied Switch
13
Power Exhaust (output)
CCN Communication Bus
13
RTU Open Control System
Supply Air Temperature (SAT) Sensor
14
Outdoor Air Temperature (OAT) Sensor
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Control Connections
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Related Manuals for Carrier Weathermaker 50KC
Summary of Contents for Carrier Weathermaker 50KC
- Page 1 50KC Single Package Rooftop Cooling Only with Puronr (R---410A) Refrigerant Sizes: 04, 05, 06 Installation Instructions NOTE: Read the entire instruction manual before starting All Units ....... . the installation Convenience Outlets .
- Page 2 EconoMi$er2 ......WARNING Field Connections ......Space Temperature (SPT) Sensors .
- Page 3 Rated Indoor Airflow (cfm) Model Number Full Load Airflow (cfm) 50KC*A/B04 1050 This table lists the rated indoor airflow used for the AHRI 50KC*A/B05 1400 efficiency rating for the units covered in this document. 50KC*A/B06 1750 Position: 9 10 11 12 13 14 15 16 17 18 Example: –...
- Page 4 C14251 Fig. 2 - - Dimensional Drawing...
- Page 5 C14252 Fig. 2 - - Unit Dimensional Drawing (cont.)
- Page 6 C08337 LOCATION DIMENSION CONDITION 48--- in (1219 mm) Unit disconnect is mounted on panel 18--- in (457 mm) No disconnect, convenience outlet option 18--- in (457) mm Recommended service clearance 12--- in (305 mm) Minimum clearance 42--- in (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall) 36--- in (914 mm) Surface behind servicer is electrically non--- conductive (e.g., wood, fiberglass)
- Page 7 Table 1 – Operating Weights UNITS LB (KG) UNITS LB (KG) UNITS LB (KG) 50KC ---* Base Unit 445 (201) 499 (226) 552 (250) Economizer Vertical 50 (23) 50 (23) 50 (23) Horizontal 80 (36) 80 (36) 80 (36) Humidi--- MiZer System 50 (23) 50 (23)
- Page 8 C13310 Fig. 5 - - Roof Curb Details...
- Page 9 Step 5 — Field Fabricate Ductwork Step 6 — Rig and Place Unit Cabinet return-air static pressure (a negative condition) Keep unit upright and do not drop. Spreader bars are not shall not exceed 0.35 in. wg (87 Pa) with economizer or required if top crating is left on unit.
- Page 10 C14240 Fig. 6 - - Rigging Label Step 7 — Convert to Horizontal and Connect Ductwork (when required) 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.
- Page 11 Step 8 — Install Outside Air Hood 4. Carefully lift the hood assembly (with metal tray) through the filter access opening and assemble per the Economizer and Two Position Damper Hood steps outlined in Economizer Hood and Two–Position Package Removal and Setup - - Factory Option Hood, below.
- Page 12 Step 10 — Install External Condensate Trap 4. Insert the hood divider between the hood sides. See Fig. 11 and Fig. 12. Secure hood divider with 2 and Line screws on each hood side. The hood divider is also The unit has one -in.
- Page 13 Step 11 — Make Electrical Connections Units Without Non-Fused Disconnect Option WARNING (1-ph IFM) ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Disconnect Disconnect Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur.
- Page 14 Units Without Factory- - Installed Non- - Fused Disconnect — When installing units, provide a disconnect switch per NEC (National Electrical Code) of adequate size. Disconnect sizing data is provided on the unit informative plate. Locate on unit cabinet or within sight of the unit per national or local codes.
- Page 15 Non- - powered type: This type requires the field Pwd-CO Transformer installation of a general- - purpose 125- - volt 15- - A circuit Convenience Outlet powered from a source elsewhere in the building. Observe GFCI national and local codes when selecting wire size, fuse or breaker requirements and disconnect switch size and Pwd-CO location.
- Page 16 PremierLink controller (available as factory- - installed Factory- - Option Thru- - Base Connections — option or as field- - installed accessory, for use on a Carrier Comfort Network or as a stand alone control) or the RTU...
- Page 17 For wire runs up to 50 ft. (15 m), use no. 18 AWG RACEWAY (American Wire Gage) insulated wire [35_C (95_F) minimum]. For 50 to 75 ft. (15 to 23 m), use no. 16 AWG insulated wire [35_C (95_F) minimum]. For over 75 ft. (23 m), use no.
- Page 18 Single Point Boxes and Supplementary Fuses — DISCONNECT MOUNTING LOCATION When the unit MOCP device value exceeds 60- - A, unit- - mounted supplementary fuses are required for each heater circuit. These fuses are included in accessory Single Point Boxes, with power distribution and fuse blocks.
- Page 19 (units with PermierLinkt control). To connect the Carrier humidistat (HL38MG029): ® 1. Route the humidistat 2- - conductor cable (field- - supplied) through the hole provided in the unit corner post.
- Page 20 C14254 Fig. 34 - - Typical Humidi- - MiZer Adaptive Dehumidification System Humidistat Wiring EDGE Pro THERMIDISTAT Unit CTB THERMOSTAT O/W2/B SRTN Humidi-MiZer™ FIOP *Connection not required. C09298 Fig. 35 - - Typical Rooftop Unit with Humidi- - MiZer Adaptive Dehumidification System with EDGE Pro Thermidistat Device...
- Page 21 EconoMi$er X (Factory- -Installed Option) For details on operating 50KC units equipped with the factory- - installed EconoMi$er option, refer Factory- - Installed Economizers for TC/TCQ/HC/HCQ/ LC/KC/KCQ Rooftop Units, 3 to 27.5 Nominal Tons. Economizer Supplement Related to California Title 24 (Catalog No.
- Page 22 FIOP/accessory EconoMi$ert2 package. function of the standard unit control board. CCN service The PremierLink controller requires the use of a Carrier access tools include System Pilot (TM), Touch Pilot (TM) electronic thermostat or a CCN connection for time and Service Tool.
- Page 23 C14257 Fig. 39 - - PremierLink Wiring Schematic...
- Page 24 C14258 Fig. 40 - - PremierLink Wiring Schematic with Humidi- - MiZer...
- Page 25 Supply Air Temperature (SAT) Sensor — NOTE: The sensor must be mounted in the discharge airstream downstream of the cooling coil and any heating On FIOP- - equipped 50KC unit, the unit is supplied with a devices. Be sure the probe tip does not come in contact supply- - air temperature (SAT) sensor (33ZCSENSAT).
- Page 26 LEGEND: --- Space Temperature Sensor FSD --- Fire Shutdown --- Space Temperature Sensor IAQ --- Indoor Air Quality (CO --- Carrier Comfort Network (communication bus) OAQ --- Outdoor Air Quality (CO CMPSAFE --- Compressor Safety RH --- Relative Humidity FILTER...
- Page 27 Space Sensors — J6-7 The PremierLink controller is factory- - shipped configured for Space Sensor Mode. A Carrier T- - 55 or T- - 56 space sensor must be used. T- - 55 space temperature sensor J6-6 provides a signal of space temperature to the PremierLink Jumper control.
- Page 28 Economizer Controls IAQ Sensor J5-5 Indoor Air Quality (CO Sensor — The indoor air quality sensor accessory monitors space J5-3 carbon dioxide (CO ) levels. This information is used to 24 VAC monitor IAQ levels. Several types of sensors are available, C08636 Fig.
- Page 29 Space Relative Humidity Sensor or Humidistat The sensor must be mounted vertically on the wall. The Connections — Carrier logo should be orientated correctly when the sensor is properly mounted. NOTE: The accessory space relative humidity sensor and Avoid corner locations. Allow at least 4 ft between the humidistat are not available for size 04- - 06 single phase sensor and any corner.
- Page 30 4000 ft, with no more than 60 total J4-6 devices on any 1000- - ft section. Optically isolated RS- - 485 repeaters are required every 1000 ft. C08118 Fig. 54 - - PremierLink Wiring Fan Pressure Switch NOTE: Carrier device default is 9600 band. Connection...
- Page 31 Communications Bus Wire Specifications: The CCN Connecting CCN bus: Communication Bus wiring is field- - supplied and NOTE: When connecting the communication bus cable, field- - installed. It consists of shielded 3- - conductor cable a color code system for the entire network is with drain (ground) wire.
- Page 32 RTU Open Control System The RTU Open controller is an integrated component of the Carrier rooftop unit. Its internal application programming provides optimum performance and energy efficiency. RTU The RTU Open control is factory- - mounted in the 50KC Open enables the unit to run in 100% stand- - alone control unit’s main control box, to the left of the CTB.
- Page 33 C14259 Fig. 59 - - RTU Open System Control Wiring Diagram...
- Page 34 C14260 Fig. 60 - - RTU Open System Control Wiring Diagram with Humidi- - MiZer...
- Page 35 Refer to the input configuration and accessory sections of the RTU Open Multi ---Protocol Controller Controls, Start ---Up, Operation and Troubleshooting manual for more detail. The RTU Open controller requires the use of a Carrier Outdoor Air Temperature (OAT) Sensor —...
- Page 36 Space Temperature (SPT) Sensors — for internal connections at the T- - 59. Connect the SEN There are two types of SPT sensors available from Carrier, terminal (BLU) to RTU Open J20- - 1. Connect the COM resistive input non-communicating (T55, T56, and T59) terminal (BRN) to J20- - 2.
- Page 37 Space Relative Humidity Sensor or Humidistat — Do not mount the IAQ sensor in drafty areas such as near supply ducts, open windows, fans, or over heat sources. NOTE: The accessory space relative humidity sensor and Allow at least 3 ft (0.9 m) between the sensor and any humidistat are not available for size 04- - 06 single phase corner.
- Page 38 J4-1 or J4-4 + 24 VDC Supply Voltage J4-2 or J4-5 (-)4 to 20 mA Current Loop Output to RTU Open Relative Humidity Sensor (Polarized Male Connector) SPAN ZERO 4-20 GND 0-5V 0-10V C12756 Fig. 67 - - Duct Relative Humidity Sensor Typical Wiring Humidistat: The accessory humidistat provides the RTU Fan Status: The fan status accessory is a field- - installed Open insight to the relative humidity in the space.
- Page 39 Communication Wiring - - Protocols The RTU Open can be set to communicate on four different protocols: BACnet, Modbus, N2, and LonWorks. Switch 3 (SW3) on the board is used to set protocol and General — baud rate. Switches 1 and 2 (SW1 and SW2) are used to Protocols are the communication languages spoken by set the board’s network address.
- Page 40 Local Access Field Assistant Field Assistant is a computer program included with the Wall Mounted Equipment Touch purchase of the Tech Tool Kit (USB-TKIT). This is a field Tech Tool to set-up, service, or download application The Equipment Touch is a wall mounted interface used to software to the RTU Open controller and includes a USB connect to the RTU Open to access the control Link Cable.
- Page 41 Table 9 – LEDs The LEDs on the RTU Open show the status of certain functions If this LED is on... Status is... Power The RTU Open has power The RTU Open is receiving data from the network segment The RTU Open is transmitting data over the network segment The binary output is active The Run and Error LEDs indicate control module and network status If Run LED shows...
- Page 42 Return Air Enthalpy Sensor — Return Air Smoke Detector (as shipped) Mount the return- - air enthalpy sensor (33CSENTSEN) in the return- - air section of the economizer. The return air sensor wired enthalpy controller (33CSENTHSW). See Fig. 73. PL6-1 (24-V) –...
- Page 49 Legend and Notes for Table 10 LEGEND: Example: Supply voltage is 230-3-60 BRKR --- Circuit breaker AB = 224 v --- Convenient outlet --- Direct drive (indoor fan motor) BC = 231 v DISC --- Disconnect AC = 226 v --- Full load amps --- Indoor fan motor (224 + 231 + 226)
- Page 50 HVAC Partners (www.hvacpartners.com). Catalog No:50KC ---4---6---01SI Copyright 2014 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 10/14 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 51 UNIT START-UP CHECKLIST (Remove and Store in Job File) MODEL NO.: SERIAL NO.: I. PRE-START-UP j VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT j VERIFY INSTALLATION OF OUTDOOR AIR HOOD j VERIFY INSTALLATION OF FLUE EXHAUST AND INLET HOOD j VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS j VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT j CHECK THAT INDOOR- - AIR FILTERS ARE CLEAN AND IN PLACE...
- Page 52 10. RESTORE SETPOINTS FOR THERMOSTAT AND HUMIDISTAT Catalog No:50KC ---4---6---01SI Copyright 2014 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 10/14 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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