Manual de instrucciones de Carrier 48/50PM C16-28

Manual de instrucciones del aparato Carrier 48/50PM C16-28

Aparato: Carrier 48/50PM C16-28
Categoría: Aparato de aire acondicionado
Fabricante: Carrier
Tamaño: 9.71 MB
Fecha de añadido: 12/5/2013
Número de páginas: 188
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Resúmenes de contenidos
Resumen del contenido incluido en la página 1

48/50PG C03-14
48/50PM C16-28
Single Package Rooftop Units
With COMFORTLink Controls Version 5.x
and PURON (R-410A) Refrigerant
Controls, Start-Up, Operation, Service
and Troubleshooting Instructions
IMPORTANT: This literature covers 48/50PG03−14 and Thermidistat Control ................................ 9
48/50PM16−28 models with Comfortlink Software version 5.x.
Space Humidistat Control ............................ 9
The 48/50PG C16−28 (15 – 25 ton) model reference has been
Relative Humidity

Resumen del contenido incluido en la página 2

TROUBLESHOOTING .............................. 37 APPENDIX D − ADDITIONAL START−UP DATA ...... 169 Complete Unit Stoppage ............................ 37 CONTROL SET POINT AND CONFIGURATION LOG... 180 Restart Procedure .................................. 37 INDICATE UNIT SETTINGS BELOW ................ 180 Alarms and Alerts ................................. 37 UNIT START−UP CHECKLIST ...................... 188 Control Module Communication ...................... 44 Communication Failures .........

Resumen del contenido incluido en la página 3

The ComfortLink control system is easy to access through the use of a unit-mounted display module. There is no need to bring a ! WARNING separate computer to this unit for start-up. Access to control menus is simplified by the ability to quickly select from 11 menus. A FIRE, EXPLOSION HAZARD scrolling readout provides detailed explanations of control Failure to follow this warning could result in personal information. Only four, large, easy-to-use buttons are required to injury, death and/or pro

Resumen del contenido incluido en la página 4

ComfortLink Alarm Status N A V I G A T O R 1 2 . 5 8 5 4 . 6 ° F 4 4.1 ° F 4 4 . 0 ° F M O D E E S C ENTER Run Status Service Test Temperatures Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms TIME EWT LWT SETP Pressing the ESCAPE and ENTER keys simultaneously will scroll Accessory Navigator Display an expanded text description across the display indicating the full The accessory hand-held Navigator display can be used with the meaning of each display point. Pre

Resumen del contenido incluido en la página 5

Table 2 – Scrolling Marquee Mode and Menu Display Structure RUN SERVICE TIME OPERATING TEMPERATURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURATION ALARMS STATUS TEST CLOCK MODES Auto View Service Test Air Thermostat Fan Display Time of Control Reset All Configuration Day of Mode Temperatures Inputs Outputs Modes Current Run Status (TEST) (AIR.T) (STAT) (FANS) (DISP) (TIME) (MODE) Alarms ↓ ↓ ↓ ↓ ↓ ↓ ↓ (VIEW) (R.CURR) Unit ↓ Test Indepen­ Refrigerant General In­ Cool Month, Cool Mode ↓ Configura

Resumen del contenido incluido en la página 6

Conventions Used in This Manual Compressor Rotation The following conventions for discussing configuration points for the local display (Scrolling Marquee or Navigator accessory) will ! CAUTION be used in this manual. Point names will be written with the Mode name first, then any UNIT DAMAGE HAZARD submodes, then the point name, each separated by an arrow symbol Failure to follow this caution may result in unit damage. (→). Names will also be shown in bold and italics. As an example, Improper w

Resumen del contenido incluido en la página 7

CONTROL BOX AND COMPRESSOR ELECTRICAL OPTIONS PANEL INDOOR MOTOR ACCESS DOOR OUTDOOR AIR SCREEN (HIDDEN) CONDENSER COIL ACCESS PANEL GAS SECTION ACCESS FILTER ACCESS DOOR BASEPAN CONNECTIONS ACCESS PANEL C07002 Fig. 4 − 48/50PG03−14 Size Units, Panel and Filter Locations (48PG03−07 Unit Shown) OUTDOOR AIR SCREEN (HIDDEN) PEM 1 & 2 CONTROL BOX CONVENIENCE OUTLET CO SENSOR 2 GAS SECTION FILTER ACCESS RETURN SMOKE DOOR DETECTOR SMOKE CONTROL MODULE C08076 Fig. 5 − 48/50PM16−28 Size Units, Panel

Resumen del contenido incluido en la página 8

MANUAL SHUT OFF Condenser Fans and Motors (FIELD SUPPLIED) Condenser fans and motors are factory set. Refer to Condenser-Fan GAS Adjustment section as required. SUPPLY Return−Air Filters Check that correct filters are installed in filter tracks (see Physical PRESSURE TAP (1/8˝ NPT PLUG) Data table in Installation Instructions). Do not operate unit without return-air filters. NOTE: For units with 4-in. filter option, units are shipped with TO standard 2-in. filters. To install 4-in. filters, the

Resumen del contenido incluido en la página 9

Space Temperature Sensor Control − Direct Wired Space Humidistat Control (T−55 or T−56 or T−59) For units with the factory Humidi-MiZer option, the humidistat input is provided on the field connection Wire accessory space temperature sensor(s) to the T-55 terminals terminal board. The Space Humidity Switch configuration, on the field connection terminal board located at the unit control Configuration→UNIT→RH.SW, identifies the normally open or box. Refer to Field-Installed Accessories section f

Resumen del contenido incluido en la página 10

NOTE: On standard units, the fire shutdown input is the terminals To create a schedule, perform the following procedure: Fire Shutdown 1 and 2. On Humidi-MiZer units, the fire 1.Scroll to the Configuration mode, and select CCN shutdown connections are at PL19. CONFIGURATION (CCN). Scroll down to the Schedule Number (Configuration→CCN→SCH.O=SCH.N). If Outdoor Enthalpy password protection has been enabled, the user will be If an Outdoor Enthalpy accessory was field installed, the unit must promp

Resumen del contenido incluido en la página 11

Table 3 – Setting an Occupied Time Schedule — Weekdays Only for 7:30 to 22:30 DISPLAY SUB‐SUB KEYPAD ITEM DISPLAY ITEM EXPANSION COMMENT MENU MODE ENTRY TIMECLOCK ENTER Local Occupancy Schedule SCH.L PER.1 ENTER OCC.1 Period Occupied Time ENTER Scrolling stops 00.00 ENTER Hours Flash 00.00  Select 7 07.00 ENTER Change accepted, minutes flash 07.00  Select 30 07.30 ENTER Change accepted 07.30 ESCAPE Item/Value/Units scrolls again OCC.1 07.30 Period Occupied Time  UNC.1 00.00 Period Unoccupied

Resumen del contenido incluido en la página 12

Humidi−MiZer Test SERVICE TEST The Service Test function can be used to verify proper operation of For units with the factory Humidi-MiZer option, the Humidi-MiZer (HZMR) submenu is used to change the output compressors, heating stages, Humidi−MiZer System, indoor fan, status to operate the circuits in different Humidi−MiZer modes or outdoor fans, power exhaust fans, economizer, crankcase heaters, to separately test the Humidi−MiZer valve operations. Refer to the and the alarm relay. Use of S

Resumen del contenido incluido en la página 13

Heating Test Fire Shutdown The heating (HEAT) submenu is used to change output status for The fire shutdown input is provided for unit shutdown in response the individual heat stages, gas or electric. The fans (FANS) and to a fire alarm or smoke detector. The Fire Shutdown Switch cooling (COOL) service test outputs are reset to OFF for the configuration, Configuration→UNIT→FS.SW, identifies the heating service test. Indoor and outdoor fans are controlled normally open or normally closed status o

Resumen del contenido incluido en la página 14

FS.SW = 1 (NO) FS.SW = 2 (NC) C09346 Fig. 8 − 48PG/PM Humidi−MiZer − Third Party Smoke Detector Wiring Economizer Monitoring CONTROLS OPERATION On field terminal board (TB1), terminals 8, 9, and 10 can be used Display Configuration to monitor economizer position from a third party control system. The Configuration→DISP submenu is used to configure the local See economizer operation section for additional information. display settings. NOTE: Terminal 8 will not represent economizer position if

Resumen del contenido incluido en la página 15

Thermostat Control Type (T.CTL) Space Humidity Switch (RH.SW) This configuration applies only if Unit Control Type is Thermostat This configuration identifies if a space relative humidity switch is (Configuration→Unit→U.CTL = 2). The value determines installed on the ENTHALPY input, and what status (normally alternative cooling and Humidi-MiZer circuit staging. See the open, normally closed) the input is when the space humidity is Cooling and Humidi-MiZer sections for more information. The LOW.

Resumen del contenido incluido en la página 16

When thermostat control is enabled (Configuration→UNIT HVAC Operation Disabled (HV.DN) →U.CTL = 1), the unit will operate based on discrete input Allow disabling of HVAC mode. This is only available on a commands (G, Y1, Y2, W1, and W2) and there is a one minute network connection and shows if the unit has been forced into the time delay between modes and when re−entering a mode. The G disabled status. command calls for ventilation, the Y1 and Y2 commands call for Cool Setpoint In Effect (EFF.C

Resumen del contenido incluido en la página 17

local schedule and therefore changing this number only Occupancy Determination changes the title of the schedule table. The building’s occupancy is affected by a number of different 3. (Configuration→CCN→SCH.O→SCH.N = 65−99) factors. When the unit is operating with a space temperature sensor Follow the global programmed schedule. If the unit is (T−55, T−56, T−58 or T−59), occupancy affects the unit set points configured as a Global Schedule Broadcaster and the operation of the economizer. If

Resumen del contenido incluido en la página 18

T.CTL = 0 (Adaptive Control) Cooling Operation Stage timers, Supply air trend, and supply air temperature limits The 48/50PG and 48/50PM unit’s cooling operation consists of: apply when determining the request for stages. The first request demand, mode determination, staging request to satisfy the (REQ.C=1) comes immediately when the Y1 input is active. The demand, and handling a request with the unit’s resources. These Cool Stage Increase Time (Configuration→COOL→C.INC) or resources can inclu

Resumen del contenido incluido en la página 19

Space Sensor Control Outdoor Fan Control Space sensor staging control is an adaptive anticipation control that Each unit has a means for variable outdoor airflow to control weighs the actual space demand against the trend of that demand condenser pressure control within an acceptable range by and the trend of the supply air. It also honors stage time guards responding to varied operating modes and ambient temperatures. and supply air limits. The demand for cooling in the space is This is imple

Resumen del contenido incluido en la página 20

For 48/50PG03−07 units, one outdoor fan is controlled in all For 48/50PG20−28 and 48/50PM16−28 units, contactor OFC1 modes by the Motormaster sensing on circuit A. controls power to the Motormaster which controls OFM1 and For 48/50PG08−14 units, 2 outdoor fans are controlled in all OFM4. Contactor OFC2 controls the remaining two fans (16 and modes by the Motormaster sensing on circuit A. 20 size) or remaining 4 fans (24 and 28 sizes). For 48/50PG16 units, 3 outdoor fans are controlled in normal


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