Carrier 48LC Series Installation Instructions Manual Download | Manualshive

Page: 1 / 64

background image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53480301-01

Printed in U.S.A.

Form 48LC-8-12-07SI

Pg 1

5-2020

Replaces: 48LC-8-12-06SI

Installation Instructions

NOTE: Read the entire instruction manual before starting the

installation.

SAFETY CONSIDERATIONS   . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Rated Indoor Airflow (cfm)  . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Plan for Unit Location . . . . . . . . . . . . . . . . 9

Plan for Sequence of Unit Installation . . 10

• CURB-MOUNTED INSTALLATION

• PAD-MOUNTED INSTALLATION

• FRAME-MOUNTED INSTALLATION

Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . 10

Provide Unit Support . . . . . . . . . . . . . . . . 10

• ROOF CURB MOUNT

• SLAB MOUNT (HORIZONTAL UNITS ONLY)

• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR

Field Fabricate Ductwork . . . . . . . . . . . . . 12

Rig and Place Unit . . . . . . . . . . . . . . . . . . 12

• POSITIONING ON CURB

Convert to Horizontal and Connect

Ductwork (when required) . . . . . . . . . . . . . . . . . . 13

Install Outside Air Hood . . . . . . . . . . . . . . 14

• ECONOMIZER HOOD REMOVAL AND SETUP –

• ECONOMIZER HOOD ASSEMBLY

Install Flue Hood . . . . . . . . . . . . . . . . . . . . 15

Step 10 —

Install Gas Piping . . . . . . . . . . . . . . . . . . 15

• FACTORY-OPTION THRU-BASE CONNECTIONS

(GAS CONNECTION)

Step 11 —

Install External Condensate Trap and

Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Step 12 —

Make Electrical Connections . . . . . . . . . 18

• FIELD POWER SUPPLY

• UNITS WITHOUT FACTORY-INSTALLED NON-

FUSED DISCONNECT OR HACR

• UNITS WITH FACTORY-INSTALLED NON-FUSED

DISCONNECT OR HACR

• CONVENIENCE OUTLETS

• FACTORY-OPTION THRU-BASE CONNECTIONS

(ELECTRICAL CONNECTIONS)

• UNITS WITHOUT THRU-BASE CONNECTIONS

• FIELD CONTROL WIRING

• UNIT WITHOUT THRU-BASE CONNECTION KIT

• HEAT ANTICIPATOR SETTINGS

Humidi-MiZer® System Control Connections

• HUMIDI-MIZER SYSTEM – SPACE RH CONTROLLER

RTU Open Controller (Factory-Installed Option) . . 31

SystemVu™ Controller (Factory-Installed Option)

Integrated Staging Control (ISC) Board . . . . . . . . . .32

• ISC BOARD - SEQUENCE OF OPERATION

EconoMi$er® X (Factory Option)

. . . . . . . . . . . . . . .34

• SYSTEM COMPONENTS

• SPECIFICATIONS

• ENVIRONMENTAL

• ECONOMIZER MODULE WIRING DETAILS

• INTERFACE OVERVIEW

• SETUP AND CONFIGURATION

• ENTHALPY SETTINGS

• TWO-SPEED FAN OPERATION

• TROUBLESHOOTING

Staged Air Volume (SAV™) with Variable Frequency

Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Multi-Speed VFD Display Kit (Field-Installed

Accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

• ALPHA NUMERIC DISPLAY

• NAVIGATION KEYS AND STATUS LEDS

• OPERATION KEYS AND LEDS

• CONNECTING THE KEYPAD TO THE VFD

• PROGRAM THE VFD FOR 3 DISCRETE INDOOR FAN

Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

• COMPLETING INSTALLATION OF RETURN-AIR

• ADDITIONAL APPLICATION DATA

Step 13 —

Adjust Factory-Installed Options . . . . . .60

• SMOKE DETECTORS

Step 14 —

Install Accessories . . . . . . . . . . . . . . . . .60

Step 15 —

Check Belt Tension . . . . . . . . . . . . . . . . .60

• BELT FORCE — DEFLECTION METHOD

• BELT TENSION METHOD

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,

WeatherExpert

®

48LC 08-12

Single Package Rooftop

Gas Heat/Electric Cooling Unit

with Puron

®

(R-410A) Refrigerant

1
2
3
...
»

Summary of Contents for 48LC Series

Page 1: ... Factory Installed Option 31 SystemVu Controller Factory Installed Option 31 Integrated Staging Control ISC Board 32 ISC BOARD SEQUENCE OF OPERATION EconoMi er X Factory Option 34 SYSTEM COMPONENTS SPECIFICATIONS INPUTS OUTPUTS ENVIRONMENTAL ECONOMIZER MODULE WIRING DETAILS INTERFACE OVERVIEW SETUP AND CONFIGURATION ENTHALPY SETTINGS TWO SPEED FAN OPERATION CHECKOUT TROUBLESHOOTING Staged Air Volu...

Page 2: ...ctives ne sont pas suivies cela peut entraîner des blessures graves ou une intoxication au monoxyde de carbone pouvant causer la mort si des produits de combustion s infil trent dans le bâtiment Vérifier que toutes les ouvertures pratiquées dans le mur ex térieur autour du ou des tuyaux d évent et de la prise d air sont scellées de manière à empêcher l infiltration de produits de combustion dans l...

Page 3: ...cy rating for the units covered in this document WARNING FIRE HAZARD Failure to follow this warning could result in severe personal injury and or property damage Manifold pressure tap set screw must be tightened and 1 8 in NPT pipe plug must be installed to prevent gas leaks MANIFOLD GAS VALVE MANIFOLD PRESSURE TAP SET SCREW Table 1 Rated Indoor Airflow cfm MODEL NUMBER FULL LOAD AIRFLOW CFM 48LC ...

Page 4: ...Cu Al Cu B Precoat Al Cu Al Cu C E coat Al Cu Al Cu D E coat Al Cu E coat Al Cu E Cu Cu Al Cu F Cu Cu Cu Cu M Al Cu Al Cu Louvered Hail Guard N Precoat Al Cu Al Cu Louvered Hail Guard P E coat Al Cu Al Cu Louvered Hail Guard Q E coat Al Cu E coat Al Cu Louvered Hail Guard R Cu Cu Al Cu Louvered Hail Guard S Cu Cu Cu Cu Louvered Hail Guard Voltage 1 575 3 60 5 208 230 3 60 6 460 3 60 Design Revisio...

Page 5: ...5 Fig 2 Unit Dimensional Drawing Size 08 Unit ...

Page 6: ...6 Fig 2 Unit Dimensional Drawing Size 08 Unit cont ...

Page 7: ...7 Fig 3 Unit Dimensional Drawing Size 09 and 12 Units ...

Page 8: ...8 Fig 3 Unit Dimensional Drawing Size 09 and 12 Units cont ...

Page 9: ...rces of contaminated air Although unit is weatherproof avoid locations that permit water from higher level runoff and overhangs to fall onto the unit Select a unit mounting system that provides adequate height to al low installation of condensate trap per requirements Refer to In stall External Condensate Trap and Line on page 18 for required trap dimensions ROOF MOUNT Check building codes for wei...

Page 10: ...cessory roof curb in accordance with in structions shipped with the curb NOTE The gasketing of the unit to the roof curb is critical for a watertight seal Install gasket supplied with the roof curb as shown in Fig 6 Improperly applied gasket can also result in air leaks and poor unit performance Curb should be level This is necessary for unit drain to function properly Unit leveling tolerances are...

Page 11: ...11 Fig 6 Roof Curb Details Size 08 12 Units ...

Page 12: ...ging materials under unit cardboard or wood must be re moved PRIOR to placing the unit on the roof curb When using the standard side drain connection ensure the red plug in the alternate bottom connection is tight Do this before set ting the unit in place The red plug can be tightened with a 1 2 in square socket drive extension For further details see Install Ex ternal Condensate Trap and Line on ...

Page 13: ...CRDUCTCV002A00 to cover the vertical supply duct opening Use the return duct cover removed from the unit end panel to cov er the vertical return duct opening Use the screws to install the covers on vertical duct openings with the insulation side down The panels must be inserted into the notches on the basepan to properly seal The notches are covered by the tape used to secure the insulation to the...

Page 14: ...sory 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 hood assembly 1 The indoor coil access panel will be used as the top of the hood If the panel is still attached to the unit remove the screws along the sides and bottom of the panel See Fig 15 Fig 15 Indoor Coil Access Panel Relocation 2 Sw...

Page 15: ...appli ances This unit is factory equipped for use with natural gas fuel at eleva tions up to 2000 ft 610 m above sea level Unit may be field con verted for operation at elevations above 2000 ft 610 m and or for use with liquefied petroleum fuel See accessory kit installation in structions regarding these accessories NOTE In U S A the input rating for altitudes above 2000 ft 610 m must be derated b...

Page 16: ...ce the gasket over the embossed area in the basepan aligning the holes in the gasket to the holes in the basepan See Fig 21 5 Install the connector plate assembly to the basepan using 8 of the washer head screws NOTE If gas and or electrical connections are not going to occur at this time tape or otherwise cover the fittings so that moisture does not get into the building or conduit in the interim...

Page 17: ... Direct Drip Leg Fig 24 Gas Piping with Offset Drip Leg Fig 25 Gas Piping Thru Base Connections When installing the gas supply line observe local codes pertaining to gas pipe installations Refer to the NFPA 54 ANSI Z223 1 NFGC latest edition in Canada CAN CSA B149 1 In the ab sence of local building codes adhere to the following pertinent recommendations 1 Avoid low spots in long runs of pipe Grad...

Page 18: ...pipe size smaller than the unit connection 3 4 in Fig 27 Condensate Drain Pan Side View Fig 28 Condensate Drain Piping Details Step 12 Make Electrical Connections NOTE Field supplied wiring shall conform with the limitations of minimum 63 F 33 C rise FIELD POWER SUPPLY For those units without through the curb power conduit must be used to route the main power from the condenser end via the power e...

Page 19: ... switch or HACR Refer to Table 7 for maxi mum wire size at connection lugs Use copper wire only See Fig 33 NOTE TEST LEADS Unit may be equipped with short leads pigtails on the field line connection points off the optional non fused disconnect switch or HACR These leads are for factory run test purposes only remove and discard before connecting field power wires to unit connection points Make fiel...

Page 20: ...deviation from average voltage AB 227 224 3 v BC 231 227 4 v AC 227 226 1 v Maximum deviation is 4 v Determine percent of voltage imbalance This amount of phase imbalance is satisfactory as it is below the maxi mum allowable 2 All units except 208 230 v units are factory wired for the voltage shown on the nameplate If the 208 230 v unit is to be connected to a 208 v power supply the control transf...

Page 21: ...21 Fig 34 48LC 08 12 Electro mechanical Control Wiring Diagram ...

Page 22: ...22 Fig 35 48LC 08 12 RTU Open Control Wiring Diagram ...

Page 23: ...23 Fig 36 48LC 08 12 SystemVu Control Wiring Diagram ...

Page 24: ...24 Fig 37 48LC 08 12 Typical Power Wiring Diagram Electromechanical and RTU Open Controls 208 230 v Unit Shown ...

Page 25: ...25 Fig 38 48LC 08 12 Typical Power Wiring Diagram SystemVu Control 208 230 v Unit Shown ...

Page 26: ...ig 2 and 3 2 Remove 3 hex screws on the NFD enclosure 2 on the face of the cover and 1 on the bottom see Fig 41 3 Remove the front cover of the NFD enclosure 4 Make sure the NFD shipped from the factory is at OFF position the arrow on the black handle knob is at OFF 5 Insert the shaft with the cross pin on the top of the shaft in the horizontal position 6 Measure the tip of the shaft to the top su...

Page 27: ... a hinged waterproof access cover located on the panel be neath the control box See Fig 44 and 45 Non powered type This type requires the field installation of a general purpose 125 volt 15 A circuit powered from a source elsewhere in the building Observe national and local codes when selecting wire size and conduit requirements fuse or breaker requirements and disconnect switch size and location ...

Page 28: ...ctory mounted due to its depth it must be installed at unit in stallation For shipment the convenience outlet is covered with a blank cover plate The weatherproof cover kit is shipped in the unit s control box The kit includes the hinged cover a backing plate and gasket DISCONNECT ALL POWER TO UNIT AND CONVE NIENCE OUTLET LOCK OUTAND TAG OUTALL POWER Remove the blank cover plate at the convenience...

Page 29: ...ly from the L bracket and discard the L bracket but retain the washer head screws and the gasket located between the L bracket and the connector plate assembly NOTE Take care not to damage the gasket as it is reused in the following step 3 Place the gasket over the embossed area in the basepan aligning the holes in the gasket to the holes in the basepan See Fig 50 4 Install the connector plate ass...

Page 30: ...re that it will not be damaged by con tact with the condenser coil See Fig 52 Fig 52 Thermostat Wire Routing NOTE If thru the bottom connections accessory is used refer to the accessory installation instructions for information on routing power and control wiring HEAT ANTICIPATOR SETTINGS Set heat anticipator settings at 0 14 amp for the first stage and 0 14 amp for second stage heating when avail...

Page 31: ...stat RTU Open Controller Factory Installed Option For details on operating 48LC 08 09 12 units equipped with the factory installed RTU Open option refer to 48 50LC 07 26 Facto ry Installed Option RTU Open Multi Protocol Controller Con trols Start up Operation and Troubleshooting manual SystemVu Controller Factory Installed Option For details on operating 48LC 08 09 12 units equipped with the facto...

Page 32: ...ED05 1 Check Smoke Detector PMR AUX RED Blinking Green LED Note 1 2 Check HPS LPS COFS RED RED 3 Call for Y3 with no call for Y1 Check Y1 wiring RED 4 Call for Y3 with no call for Y1 Y2 Check Y1 wiring RED RED 5 Call for Y2 with no call for Y1 Check Y1 wiring RED RED 6 Call for W2 with no call for W1 Check W1 wiring RED RED 7 Call for heat W1 W2 and cooling Y1 Y2 Y3 Check thermostat wiring RED RED...

Page 33: ...economizer will modu late the outdoor air damper to provide a 50 F 10 C to 55 F 13 C mixed air temperature into the zone and run the indoor fan at high speed As mixed air temperature fluctuates above 55 F 13 C or below 50 F 10 C dampers will be modulated open or close to bring the mixed air temperature back within control Upon more call for cooling Y2 on the thermostat the outdoor air damper will ...

Page 34: ...delay will not change back to 45 seconds unless power is reset to the control ALED indicator is provided on the IGC to monitor operation When additional heat is required W2 closes and initiates power to the second stage of the main gas valve When the thermostat is sat isfied the gas valve closes interrupting the flow of gas to the main burners EconoMi er X Factory Option The EconoMi er X system is...

Page 35: ...perature accuracy 0 F 2 F Temperature and Humidity C7400S1000 optional S Bus 2 wire 18 to 22AWG Temperature range 40 F to 150 F 40 C to 65 C Temperature accuracy 0 F 2 F Humidity range 0 to 100 RH with 5 accuracy NOTE Up to three 3 S Bus sensors may be connected to the W7220 economizer module for outdoor air OA return air RA and discharge supply air DA 4 Binary Inputs 1 wire 24 vac common GND see ...

Page 36: ... BUS S BUS S BUS Sylk Bus Enthalpy Control Sensor Polarity Insensitive Connection Bottom Left Terminal Block IAQ 2 10 2 10 vdc Air Quality Sensor Input e g CO2 sensor IAQ COM COM Air Quality Sensor Common IAQ 24V 24 vac Air Quality Sensor 24 vac Source ACT 2 10 2 10 vdc Damper Actuator Output 2 10 vdc ACT COM COM Damper Actuator Output Common ACT 24v 24 vac Damper Actuator 24 vac Source Table 11 E...

Page 37: ... button causes the display to automatically increment or decrement 1 Press the Enter button to accept the displayed value and store it in nonvolatile RAM CHANGE STORED displays 2 Press the Enter button to return to the current menu parameter 3 Press the Menu Up Exit button to return to the previ ous menu Menu Structure Table 14 illustrates the complete hierarchy of menus and parame ters for the Ec...

Page 38: ... and displays measured discharge temperature Displays _ _ _F if sensor sends invalid value if not connected short or out of range OA TEMP _ _ _ F or _ _ _ C 40 F to 140 F 40 C to 60 C OUTSIDE AIR TEMP Displays measured value of outdoor air temperature Displays _ _ _F if sensor sends invalid value short or out of range OA HUM _ _ 0 to 100 OUTSIDE AIR RELATIVE HUMIDITY Displays measured value of out...

Page 39: ...halpy curves DCV SET 1100ppm 500 to 2000 ppm increment by 100 DEMAND CONTROLLED VENTILATION Displays only if CO2 sensor is connected Set point for Demand Controlled Ventilation of space Above the set point the OA dampers will modulate open to bring in additional OA to maintain a space ppm level below the set point MIN POS 2 8 V 2 to 10 vdc VENTILATION MINIMUM POSITION Displays ONLY if a CO2 sensor...

Page 40: ...c out for second exhaust fan SYS use output as an alarm signal OCC INPUT INPUT or ALWAYS OCCUPIED MODE BY EXTERNAL SIGNAL When using a setback thermostat with occupancy out 24 vac the 24 vac is input INPUT to the OCC terminal If no occupancy output from the thermostat then change program to ALWAYS OR add a jumper from terminal R to OCC terminal FACTORY DEFAULT NO NO or YES Resets all set points to...

Page 41: ...he fully closed position CONNECT Y1 O N A N A Closes the Y1 O relay Y1 O CONNECT Y2 O N A N A Closes the Y2 O relay Y2 O CONNECT AUX1 O N A N A Energizes the AUX output If Aux setting is NONE no action taken ERV 24 vac out Turns on or signals an ERV that the conditions are not good for economizing but are for ERV operation SYS 24 vac out Issues a system alarm CONNECT EXH1 N A N A Closes the power ...

Page 42: ...ed indoor fan with or without DCV see Tables 20 and 21 For enthal py operation with a 2 speed indoor fan with or without DCV see Tables 22 and 23 ALARMS CONT FREEZE ALARM N A N A Check if outdoor temperature is below the LOW Temp Lockout on set point menu Check if Mixed air temperature on STATUS menu is below the Lo Set point on Advanced menu When conditions are back in normal range the alarm will...

Page 43: ...ENTILATION DCV OUTSIDE AIR GOOD TO ECONOMIZE Y1 I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 set No Off Off High 0 v Off 0 v Off VENTMIN Closed On Off High 24 v On 0 v Off VENTMIN Closed On On High 24 v On 24 v On VENTMIN Closed Yes Off Off High 0 v Off 0 v Off VENTMIN Closed On Off High 0 v Off 0 v Off VENTMIN to Full Open Closed to Full Open On On High 24 v On 0 v Off VENTMIN to Full...

Page 44: ...CUPIED UNOCCUPIED Below CO2 set No Off Off High 0 v Off 0 v Off VENTMIN Closed On Off High 24 v On 0 v Off VENTMIN Closed On On High 24 v On 24 v On VENTMIN Closed Yes Off Off High 0 v Off 0 v Off VENTMIN Closed On Off High 0 v Off 0 v Off VENTMIN to Full Open Closed to Full Open On On High 24 v On 0 v Off VENTMIN to Full Open Closed to Full Open Above CO2 set No Off Off High 0 v Off 0 v Off VENTM...

Page 45: ...I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 Set No OFF OFF LOW 0v Off 0v Off VENTMIN Closed ON OFF LOW 24v On 0v Off VENTMIN Closed ON ON HIGH 24v On 24v On VENTMIN Closed Yes OFF OFF LOW 0v Off 0v Off VENTMIN Closed ON OFF LOW 0v Off 0v Off VENTMIN to Full Open Closed to Full Open ON ON HIGH 24v On 0v Off VENTMIN to Full Open Closed to Full Open Above CO2 Set No OFF OFF LOW 0v Off 0v...

Page 46: ...tus to determine the speed of the supply fan and controls the OAdamper to the required posi tion see Table 24 The W heating mode is not controlled by the W7220 but it re quires the status to know where to position the OA damper for minimum position for the fan speed The 2 speed fan delay is available when the system is pro grammed for 2 speed fan in the System Setup menu item The 2 speed fan delay...

Page 47: ...rs 3 Press the Enter button to start the test The unit pauses and then displays IN PROGRESS When the test is complete DONE appears 4 When all desired parameters have been tested press the Menu Up button to end the test The Checkout tests can all be performed at the time of installation or at any time during the operation of the system as a test that the system is operable TROUBLESHOOTING Alarms Th...

Page 48: ...heating operation see Fig 64 and 65 Per ASHRAE 90 1 2016 during the first stage of cooling operation the SAV system will adjust the fan motor to provide 66 of the design airflow rate for the unit When the call for the second stage of cooling is required the SAV system will allow the design airflow rate for the unit established 100 During the heating mode the SAV system will allow total design airf...

Page 49: ...tion in the figure above indicates motor direction The arrow point either clockwise or counter clockwise to show the motor s current direction 5 The position of the triangle indicates the currently selected menu Status Quick Menu or Main Menu Off Reset Hand On Alarm Warn On Com OK B a c k Auto On Status Menu Quick Menu Main Menu 1 20 Motor Power 2 0 12KW 0 16HP Setup 1 ALPHA NUMERIC DISPLAY MENU K...

Page 50: ...le to the VFD 2 Connect the female end of the cable to the back panel of the VFD Remote keypad Secure the cable to the remote keypad using the 2 remaining screws from the kit PROGRAM THE VFD FOR 3 DISCRETE INDOOR FAN SPEEDS NOTE This procedure requires use of the VFD Keypad which is included as part of the field installed Multi Speed VFD display kit PN CRDISKIT002A00 If the VFD keypad is not alrea...

Page 51: ...lowing display appears f Press OK to highlight the number in the bracket g Press Down Arrow until the following display appears h Press OK i Press Off Reset The Alarm indicator disappears 4 Entering Grid Type a Press the Menu key to move the triangle icon so it is positioned over Main Menu The display shows the following b Press OK twice the display changes to c Press Down Arrow three times to rea...

Page 52: ...he and Up and Down Arrow keys to select the number provided in Tables 26 28 Press OK again to set the selected value g Press Down Arrow twice the following display appears h Press OK to highlight the number in the bracket and then use the and Up and Down Arrow keys to select the number provided in Table 26 28 Press OK again to set the selected value i Press the Back key once the following display ...

Page 53: ...e following display appears f Press Down Arrow again the following display appears NOTE Press OK to highlight the Hz value and then use the and Up and DownArrow keys to enter the required values g Press Down Arrow once the following display appears NOTE Press OK to highlight the value and then use the and Up and Down Arrow keys to enter the required value See Tables 26 28 for proper selection of t...

Page 54: ...ghlight the number in the bracket g Use the and Up and DownArrow keys to change the number to 3 for 3 automatic resets and then press OK The display changes to h Press Down Arrow once the following display appears i Press OK to highlight the number of seconds and use the and Up and Down Arrow keys to select 600 sec onds Press OK again to set the selected value j Press the Back key once the followi...

Page 55: ...31N0227 1 132 11 575 60 4 9 1710 ULTRA 208 230V HD60FK658 HK30WA372 131L9797 1 102 13 230 60 13 6 1745 460V HD60FK658 HK30WA379 131L9866 1 122 13 460 60 6 8 1745 575V HD60FE576 HK30WA387 134F0217 1 132 13 575 60 6 0 1745 START DELAY SEC FLYING START MIN SPEED FOR FUNCTION Hz MOTOR THERMAL PROTECTION PRESET REFERENCE Motor Option Voltage 1 71 1 73 1 82 1 90 3 10 0 3 10 1 3 10 2 3 10 3 3 10 4 3 10 5...

Page 56: ...10 0 60 3 600 0 575V 2 10 0 60 3 600 0 HIGH 208 230V 2 10 0 60 3 600 0 460V 2 10 0 60 3 600 0 575V 2 10 0 60 3 600 0 ULTRA 208 230V 2 10 0 60 3 600 0 460V 2 10 0 60 3 600 0 575V 2 10 0 60 3 600 0 Table 27 VFD Unit Parameters 48LC 09 Units REGIONAL SETTINGS GRID TYPE MOTOR POWER MOTOR VOLTAGE MOTOR FREQUENCY Hz MOTOR CURRENT MUST HOLD AMPS MOTOR NOMINAL SPEED RPM Motor Option Voltage Motor P N VFD ...

Page 57: ... 18 DIGITAL INPUT TERMINAL 19 DIGITAL INPUT TERMINAL 27 DIGITAL INPUT TERMINAL 29 DIGITAL INPUT Motor Option Voltage 3 41 3 42 4 18 5 10 5 11 5 12 5 13 STD 208 230V 10 00 10 00 100 8 16 17 18 460V 10 00 10 00 100 8 16 17 18 575V 10 00 10 00 100 8 16 17 18 MID 208 230V 10 00 10 00 100 8 16 17 18 460V 10 00 10 00 100 8 16 17 18 575V 10 00 10 00 100 8 16 17 18 HIGH 208 230V 10 00 10 00 100 8 16 17 18...

Page 58: ...100 100 0 0 0 575V 2 0 1 1 0 4 0 66 50 66 50 100 100 0 0 0 MID 208 230V 2 0 1 1 0 4 0 66 50 66 50 100 100 0 0 0 460V 2 0 1 1 0 4 0 66 50 66 50 100 100 0 0 0 575V 2 0 1 1 0 4 0 66 50 66 50 100 100 0 0 0 HIGH 208 230V 2 0 1 1 0 4 0 66 50 66 50 100 100 0 0 0 460V 2 0 1 1 0 4 0 66 50 66 50 100 100 0 0 0 575V 2 0 1 1 0 4 0 66 50 66 50 100 100 0 0 0 RAMP UP TIME SEC RAMP DOWN TIME SEC CURRENT LIMIT TERM...

Page 59: ...ensor module at unit installation See Fig 74 for the as shipped location COMPLETING INSTALLATION OF RETURN AIR SMOKE SENSOR 1 Unscrew the two screws holding the return air smoke detector assembly See Fig 75 Step 1 Save the screws 2 Turn the assembly 90 degrees and then rotate end to end Make sure that the elbow fitting is pointing down See Fig 75 Step 2 3 Screw the sensor and detector plate into i...

Page 60: ... leys Measure the distance between the motor shaft and the blower shaft 2 Set the tension gage to the desired tension see Table 1 in Fig 76 Place the large O ring at that point 3 Press the tension checker downward on the belt until the large O ring is at the bottom of the straightedge 4 Adjust the belt tension as needed Adjust belt tension by loosing the motor mounting plate front bolts and rear b...

Page 61: ......

Page 62: ...ight to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53480301 01 Printed in U S A Form 48LC 8 12 07SI Pg 62 5 2020 Replaces 48LC 8 12 06SI 2020 Carrier ...

Page 63: ...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 _____ Check fan wheels and propeller for location in housing orifice and verify setscrew is tight Y N _____ Verify that fan sheaves are aligned and belts are properly tensioned Y N _____ Verify that scroll compressors are rotating in the correct direction Y N _____...

Page 64: ...______ PSIG C Entering air temperature _______________ F D Liquid line temperature at outlet 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 _____ 4 Check unit charge per charging chart Y N _____ Jumper 32L Motormaster temperature sensor during this check Remove jumper when complete 5 ...

Reviews:

No comments

Related manuals for 48LC Series

Brand: Samsung Pages: 46

Brand: Panasonic Pages: 8

Brand: Panasonic Pages: 94

Brand: Panasonic Pages: 89

Brand: Argo Pages: 38

Brand: SPX Cooling Technologies Pages: 16

Brand: Pfannenberg Pages: 37

Brand: Danby Pages: 36

Brand: Hatari Pages: 9

Brand: Friedrich Pages: 15

Brand: Comfee Pages: 53

Brand: Airrex Pages: 16

ROCKY SERIES ASH-09AIR

Brand: Sinclair Pages: 27

AIR COOLED CONDENSING UNIT 38EH

Brand: Carrier Pages: 6

Brand: White Rodgers Pages: 8

Brand: Fellowes Pages: 16

Brand: Fellowes Pages: 14

Brand: Samsung Pages: 26

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands