Carrier WeatherMaker 50TC07 Series Installation Instructions Manual
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Carrier WeatherMaker 50TC07 Series Installation Instructions Manual

Single package rooftop cooling only with puron (r-410a) refrigerant
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50TC units for installation in the United States contain use of Carrier's Staged Air Volume (SAV™) 2-speed
indoor fan control system. This complies with the U.S. Department of Energy (DOE) efficiency standard of
2018.
50TC units for installation outside the United States may or may not contain use of the SAV 2-speed indoor
fan control system as they are not required to comply with the U.S. Department of Energy (DOE) efficiency
standard of 2018.
For specific details on operation of the Carrier SAV 2-speed indoor fan system refer to the Variable
Frequency Drive (VFD) Factory-Installed Option 2-Speed Motor Control Installation, Setup, and
Troubleshooting manual.
CONTENTS
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . 1-6
Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . . ..2
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-55
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . . . . 6
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . . . . 7
Step 5 - Field Fabricate Ductwork. . . . . . . . . . . . . . . 9
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 9
Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 8 - Install Outside Air Hood . . . . . . . . . . . . . . . 10
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electric Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Supply Air Temperature Sensor . . . . . . . . . . . . . . . . . 37
Field Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Economizer Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
RTU Open Controller System . . . . . . . . . . . . . . . . . . . 43
Field Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Communication Wiring - Protocols . . . . . . . . . . . . 50
Local Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Outdoor Air Enthalpy Control . . . . . . . . . . . . . . . . . . . 52
Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Step 12 - Install Accessories. . . . . . . . . . . . . . . . . . . 54
Step 13 - Check Belt Tension . . . . . . . . . . . . . . . . . . 54
Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
START-UP CHECKLIST . . . . . . . . . . . . . . . . . CL-1, CL-2
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500159-01
Single Package Rooftop Cooling Only
Installation Instructions
Page
Printed in U.S.A.
Form 50TC-7-01SI
®
with Puron
(R-410A) Refrigerant

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, main-
tenance, 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 quali-
fied installer or agency must use factory-authorized kits or ac-
cessories 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. Con-
sult local building codes and appropriate national electrical
codes (in USA, ANSI/NFPA 70, 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, CAU-
TION, 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 signi-
fies hazards which could result in personal injury or death.
CAUTION is used to identify unsafe practices, which may re-
sult in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result in en-
hanced installation, reliability, or operation.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury or death.
Disconnect gas piping from unit when leak testing at pres-
sure greater than 0.5 psig (3450 Pa). Pressures greater than
0.5 psig (3450 Pa) will cause gas valve damage resulting in
hazardous condition. If gas valve is subjected to pressure
greater than 0.5 psig (3450 Pa), it must be replaced before
use. When pressure testing field-supplied gas piping at
pressures of 0.5 psig (3450 Pa) or less, a unit connected to
such piping must be isolated by closing the manual gas
valve.
Pg 1
WeatherMaker
50TC07
WARNING
12-17
Replaces: 50TC-4-7-02SI
®

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Summary of Contents for Carrier WeatherMaker 50TC07 Series

  • Page 1: Table Of Contents

    Puron (R-410A) Refrigerant Installation Instructions 50TC units for installation in the United States contain use of Carrier's Staged Air Volume (SAV™) 2-speed indoor fan control system. This complies with the U.S. Department of Energy (DOE) efficiency standard of 2018.

  • Page 2: Rated Indoor Airflow (Cfm)

    WARNING CAUTION ELECTRICAL SHOCK HAZARD CUT HAZARD Failure to follow this warning could cause personal injury Failure to follow this caution may result in personal injury. or death. Sheet metal parts may have sharp edges or burrs. Use care Before performing service or maintenance operations on and wear appropriate protective clothing, safety glasses and unit, always turn off main power switch to unit and install gloves when handling parts and servicing air-conditioning...
  • Page 3 Position: 9 10 11 12 13 14 15 16 17 18 Example: Unit Heat Type Packaging & Seismic Compliance 50 - Electric Heat Packaged Rooftop 0 = Standard 1 = LTL Model Series - WeatherMaker ® TC - Standard Efficiency Electrical Options A = None C = Non-Fused Disconnect...
  • Page 4 Fig. 2 — Unit Dimensional Drawing — Size 07...
  • Page 5 Fig. 2 — Unit Dimensional Drawing — Size 07 (cont)

  • Page 6: Installation

    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.

  • Page 7: Step 2 - Plan For Sequence Of Unit Installation

    FRAME-MOUNTED INSTALLATION — Frame-mount- Table 1 — Operating Weights ed applications generally follow the sequence for a curb instal- lation. Adapt as required to suit specific installation plan. UNITS LB (KG) 50TC Inspect unit for transporta- Step 3 — Inspect Unit — Base Unit 607 (275) tion damage.
  • Page 8 Fig. 4 — Roof Curb Details — Size 07...

  • Page 9: Step 5 - Field Fabricate Ductwork

    FOR UNITS WITH ACCESSORY ELECTRIC HEAT- ERS — All installations require a minimum clearance to com- bustible 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. NOTE: A 90-degree elbow must be provided in the ductwork to comply with UL (Underwriters Laboratories) code for use with electric heat.

  • 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 50TC–A07 1040 74.5 1890 41.5 1055 NOTES: 1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used. 2.
  • Page 11 assembly’s metal tray is attached to the basepan and also attached to the damper using two plastic tie-wraps. 2. To gain access to the hood, remove the filter access panel. (See Fig. 8.) FILTER ACCESS PANEL PANEL PANEL CAULK HERE INDOOR INDOOR COMPRESSOR...

  • Page 12: Step 9 - Install External Condensate Trap And Line

    All units must have an external trap for condensate drain- age. Install 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 13 Units Without Disconnect Option (1-ph IFM) Disconnect Disconnect 208/230-1-60 208/230-3-60 460-3-60 375-3-60 575-3-60 Units With Disconnect Option Fig. 17 — Location of Non-Fused Disconnect Enclosure To field install the NFD shaft and handle: 1. Remove the unit front panel (see Fig. 2). Optional Factory Disconnect...
  • Page 14 UNITS WITHOUT FACTORY-INSTALLED NON- FUSED DISCONNECT — When installing units, provide a Pwd-CO Transformer disconnect switch per NEC (National Electrical Code) of ade- Convenience Outlet quate size. Disconnect sizing data is provided on the unit infor- GFCI mative plate. Locate on unit cabinet or within sight of the unit per national or local codes.
  • Page 15 COVER – WHILE-IN-USE RECEPTACLE WEATHERPROOF NOT SHOWN BASE PLATE FOR GFCI RECEPTACLE Fig. 21 — Weatherproof Cover Installation Non-powered type: This type requires the field installation of UNIT CONNECT PRIMARY TRANSFORMER a general-purpose 125-volt 15-A circuit powered from a VOLTAGE CONNECTIONS TERMINALS source elsewhere in the building.
  • Page 16 This device can be a ther- mostat (field-supplied) or a PremierLink™ controller (avail- able as factory-installed option or as field-installed accessory, for use on a Carrier Comfort Network or as a stand alone con- ® trol) or the RTU Open Controller for Building Management...

  • Page 17: Electric Heaters

    HEAT ANTICIPATOR SETTINGS — Set heat anticipator settings at 0.14 amp for the first stage and 0.14 amp for second- Ttypical Central stage heating, when available. Thermostat Terminal Corrections Board The 50TC units may be equipped Electric Heaters — with field-installed accessory electric heaters. The heaters are modular in design, with heater frames holding open coil resis- tance wires strung through ceramic insulators, line-break limit switches and a control contactor.

  • Page 18: Humidi-Mizer System Control Connections

    This device may be a separate humidistat control (contact CONTROL closes on rise in space RH above control setpoint) or a combi- nation thermostat-humidistat control device such as Carrier’s BUSHING Edge ®...
  • Page 19 CTB terminal R and the PINK lead to the LTLO switch with field-supplied wire nuts. Refer to the installation instructions included with the Carrier Edge Pro Thermidistat device for more infor- mation. ® Fig. 33 — Edge Pro Thermidistat % RELATIVE HUMIDITY Fig.

  • Page 20: Economi$Er X (Factory-Installed Option)

    Edge Programable Thermostat Unit CTB THERMOSTAT O/W2/B SRTN Humidi-MiZer™ FIOP *Connection not required. Fig. 35 — Typical Rooftop Unit with Humidi-MiZer Adaptive Dehumidification System with Edge Pro Thermidistat Device sor loses communications after it has been detected, the W7220 ® EconoMi$er X (Factory-Installed Option) economizer controller indicates a device fail error on its LCD.
  • Page 21 Relay Digital Output Rating at 30 Vac (maximum power ECONOMIZER MODULE WIRING DETAILS — Use from Class 2 input only) — 1.5A run: Fig. 37 and Tables 3 and 4 to locate the wiring terminals for the Economizer module. 3.5A inrush at 0.45PF (200,000 cycles) or NOTE: The four terminal blocks are removable.
  • Page 22 Table 4 — Economizer Module - Right Hand Table 5 — HH57AC081 Sensor Wiring Terminal Blocks Terminations LABEL TYPE DESCRIPTION TERMINAL TYPE DESCRIPTION Top Right Terminal Blocks NUMBER LABEL AUX2 I 24 vac IN The first terminal is not used. S-BUS Communications S-BUS...
  • Page 23 • Press the (Enter) button to display the first item in the 10. Press the (Menu Up/Exit) button to return to the previous currently displayed menu. menu. MENU STRUCTURE — Table 7 illustrates the complete hi- erarchy of menus and parameters for the EconoMi$er ®...
  • Page 24 Table 7 — 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 25 Table 7 — Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT ACT COUNT 1 to 65535 Displays number of times actuator has cycled. 1 cycles equals 180 deg. of actuator movement in any direction. ACTUATOR OK/Alarm (on Alarm Displays ERROR if voltage or torque is below actuator range.
  • Page 26 Table 7 — Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT INSTALL 01/01/10 Display order = MM/DD/YY Setting order = DD, MM, then YY. UNITS DEG F or C Sets economizer controller in degrees Fahrenheit or Celsius EQUIPMENT CONV Conventional or HP...
  • Page 27 Table 7 — Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT MAT T CAL 0.0°F ±2.5 F SUPPLY AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration temperature sensor. OAS T CAL 0.0°F ±2.5 F OUTSIDE AIR TEMPERATURE CALIBRATION...
  • Page 28 Table 7 — Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT SHUTDOWN ACTIVE AUX2 IN is programmed for SHUTDOWN and 24 V has been applied to AUX2 IN terminal. DMP CAL RUNNING DAMPER CALIBRATION ROUTINE RUNNING If DCV Auto enable has been programmed, when the W7220 is complet- ing a calibration on the dampers, this alarm will display.
  • Page 29 Table 8 — Damper Minimum Position Settings and Readings on Checkout Menu DEMAND CONTROLLED VENTILATION FAN SPEED SETPOINTS CHECKOUT (CO2 SENSOR) MIN POS VMAX–HS MIN POS H VMAX–HS MIN POS L VMAX–LS VENT MIN VMAX–HS VENT MAX VMAX–HS VENT MIN H VMAX–HS VENT MAX H VMAX–LS...
  • Page 30 Table 11 — Enthalpy Operation No DCV (CO Sensor) — 1 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I Y1-O Y2-O OCCUPIED UNOCCUPIED SPEED VENTILATION (DCV) ECONOMIZE HIGH 0v/Off 0v/Off MIN POS Closed NONE HIGH 24v/On 0v/Off MIN POS Closed HIGH 24v/On...
  • Page 31 Table 14 — Dry Bulb Operation With DCV (CO Sensor) — 2 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I Y1-O Y2-O OCCUPIED UNOCCUPIED SPEED VENTILATION (DCV) ECONOMIZE 0v/Off 0v/Off VENTMIN Closed 24v/On 0v/Off VENTMIN Closed HIGH 24v/On 24v/On VENTMIN Closed...
  • Page 32 ECONOMIZING DUAL ENTHALPY AVAILABLE HIGH LIMIT NOT AVAILABLE SINGLE ENTHALPY P2 (T,RH) (T,RH) TEMPERATURE Fig. 41 — Single Enthalpy Curve Boundaries Table 17 — Single Enthalpy and Dual Enthalpy High Limit Curves POINT P1 POINT P2 ENTHALPY TEMP. DRY TEMP. ENTHALPY HUMIDITY HUMIDITY...
  • Page 33 4. Press the button to start the test. 5. The unit pauses and then displays IN PROGRESS. WARNING 6. When the test is complete, DONE appears. Failure to follow this warning could result in personal 7. When all desired parameters have been tested, press the injury, property damage, or death.

  • Page 34: Premierlink Controller (Factory Option)

    CCN service access tools include System The PremierLink controller requires the use of a Carrier Pilot, Touch Pilot and Service Tool. (Standard tier display tools electronic thermostat or a CCN connection for time broadcast Navigator and Scrolling Marquee are not suitable for use with to initiate its internal timeclock.
  • Page 35 Fig. 44 — Typical PremierLink™ Control Wiring Diagram...
  • Page 36 ® Fig. 45 — Typical PremierLink™ Control Wiring Diagram with Humidi-MiZer System Option...

  • Page 37: Supply Air Temperature Sensor

    NOTE: Refer PremierLink Controller Installation, Start-up, Supply Air Temperature (SAT) Sensor — and Configuration Instructions for complete PremierLink con- FIOP-equipped 50TC unit, the unit is supplied with a supply- troller configuration, operating sequences and troubleshooting air temperature (SAT) sensor (33ZCSENSAT). This sensor is a information.
  • Page 38 CCN Gnd (WHT) Digital, 5VDC AUX OUT(Power Exhaust) (Output)Discrete 24VAC CCN —(BLK) Digital, 5VDC LEGEND — Carrier Comfort Network (communication bus) CMPSAFE — Compressor Safety FILTER — Filter Switch — Fire Shutdown — Indoor Air Quality (CO — Outdoor Air Quality (CO —...
  • Page 39 SPACE SENSORS — 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 provides a signal of space temperature to the PremierLink con- troller. T-56 provides same space temperature signal plus it al- lows for adjustment of space temperature setpoints from the face of the sensor by the occupants.

  • Page 40: Economizer Controls

    SPACE THERMOSTAT THERMOSTAT 4-12 J4-10 0-10VDC J4-8 SIG COM 4-20mA J4-6 ALARM RELAY CONTACTS J4-4 H G 24 VAC 24 VDC THERMOSTAT 8 7 6 5 4 3 2 1 Fig. 51 — Space Thermostat Connections If the 50TC unit has an economizer system and free-cooling operation is required, a sensor representing Return Air Tem- perature must also be connected (field-supplied and installed).
  • Page 41 Fig. 56 — Space Relative Humidity Sensor J5-3 Installation 24 VAC The sensor must be mounted vertically on the wall. The Carrier logo should be orientated correctly when the sensor is Fig. 55 — Outdoor CO Sensor Connections properly mounted. SPACE RELATIVE HUMIDITY SENSOR OR HUMIDI- Avoid corner locations.
  • Page 42 Filter Switch (NO, close on rising pressure (high drop)) TB1-7 Thermostat TB1-13 J4-4 Fig. 58 — PremierLink Controller Filter Switch Connection When the filter switch’s NO contact set closes as filter pres- Vin Gnd sure drop increases (indicating dirt-laden filters), the input sig- nal to the PremierLink controller causes the filter status point to read “DIRTY.”...

  • Page 43: Rtu Open Controller System

    FIOP/accessory EconoMi$er2 package. Alpha 2413 or 5463 The RTU Open controller is an integrated component of the American A22503 Carrier rooftop unit. Its internal application programming pro- Belden 8772 vides optimum performance and energy efficiency. RTU Open Columbia 02525...
  • Page 44 Board Power (AO-1) 0-10VDC 4-20mA BO-1 BO-2 BO-3 BO-4 BO-5 VFD Output AO-2 BO-6 (2-10V) BO-6 BO-7 3-Volt (H) Humidimizer Lithium Battery BO-7 (Reversing Valve/High Speed Fan/Y3) BO-8 BO-8 (Power Exhaust) LonWorks Option Card Port Network Comm Example set for BACnet MS/TP and 76.8K baud (1, 2, and 4 ON)
  • Page 45 Fig. 64 — Typical RTU Open Controller Wiring Diagram...
  • Page 46 ® Fig. 65 — Typical RTU Open Controller Wiring Diagram with Humidi-MiZer System Option...
  • Page 47 “Run Enable” status. See Input/Output section for additional instruc- tions. The RTU Open controller requires the use of a Carrier space hole in the flange or duct. Use two field-supplied, self-drilling sensor. A standard thermostat cannot be used with the RTU screws to secure the sensor probe in a horizontal orientation.

  • Page 48: Field Connections

    24 VAC. See Fig. 68 for internal con- SPACE TEMPERATURE (SPT) SENSORS — There are nections at the T-59. Connect the SEN terminal (BLU) to the two types of SPT sensors available from Carrier, resistive input RTU Open controller at J20 1. Connect the COM terminal —...
  • Page 49 mounting the sensor where it is influenced by the supply air; SPACE RELATIVE HUMIDITY SENSOR OR HUMIDI- the sensor gives inaccurate readings if the supply air is blown STAT directly onto the sensor or if the supply air does not have a Humidi-MiZer®...

  • Page 50: Communication Wiring - Protocols

    Fan Status The fan status accessory is a field-installed ac- — cessory. This accessory detects when the indoor fan is blowing J4-1 or J4-4 + 24 VDC air. When installing this accessory, the unit must be configured SUPPLY VOLTAGE  ...

  • Page 51: Local Access

    SW3 Protocol Selection PROTOCOL Select BACnet MS/TP (Master) Unused Select Baud Baud Select Modbus (Slave) Unused Select Baud Baud N2 (Slave) Unused LonWorks Unused NOTE: DS = Dip Switch COMM BACnet MS/TP SW3 example shown OPTION SET TO Baud Rate Selections PORT SET TO MSTP 38.4k...

  • Page 52: Outdoor Air Enthalpy Control

    Access Port LOCAL ACCESS RNET PORT Connect to +12 DVC Rnet- computer’s Rnet+ CR2032 USB port Connect to UI-10 the Local UI-11 Access port USB Link Kit RTU Open Controller Fig. 76 — PC Running Field Assistant Table 25 — LEDs The LEDs on the RTU Open Controller show the status of certain functions If this LED is on...

  • Page 53: Smoke Detectors

    DIFFERENTIAL ENTHALPY CONTROL — Differential Completing Installation of Return Air Smoke Sensor: enthalpy control is provided by sensing and comparing the out- 1. Unscrew the two screws holding the Return Air Smoke side air and return air enthalpy conditions. Install the outdoor Detector assembly.

  • Page 54: Step 11 - Adjust Factory-Installed Options

    Unit Without Economizer or Economizer 2 Position Damper 2 Position Damper Fig. 81 — EconoMi$er ® IV Wiring • Thermostat / Sensors Step 11 — Adjust Factory-Installed Options • CO sensor SMOKE DETECTORS — Smoke detector(s) will be con- • DDC interface (PremierLink™ controller) nected at the Controls Connections Board, at terminals marked •...

  • Page 55: Pre-Start And Start-Up

    BLOWER PULLEY V-BELT MOTOR PULLEY MOTOR BELT DEFLECTION FORCE (LBS) BELT SMALLEST MOUNTING UNNOTCHED CROSS SHEAVE NOTCHED BELTS MOTOR MOUNTING BOLTS (4) BELTS SECTION DIAMETER PLATE USED USED 3.0-3.6 Fig. 83 — Belt Drive Motor Mounting A, AX 3.8-4.8 5.0-7.0 This completes the mechan- Pre-Start and Start-Up —...
  • Page 58 © Carrier Corporation 2017 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500159-01 Printed in U.S.A. Form 50TC-7-01SI Pg 58 12-17 Replaces: 50TC-4-7-02SI...

  • Page 59: Start-Up Checklist

    START-UP CHECKLIST (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 sec- tions of this Installation Instructions document.
  • Page 60 COMPRESSOR AND OUTDOOR FAN STOP; LSV AND DSV SOLENOIDS DE-ENERGIZED 10. RESTORE SETPOINTS FOR THERMOSTAT AND HUMIDISTAT  © Carrier Corporation 2017 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500159-01 Printed in U.S.A.

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