Carrier 40QQ Series Installation Instructions Manual Download

Page: 1 / 55

40QQ

VRF Rooftop

Heat Recovery and Heat Pump

Sizes: 036, 048, 060

Installation Instructions

TABLE OF CONTENTS

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . .

NOMENCLATURE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DIMENSIONS

3- 4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CENTER OF GRAVITY

. . . . . . . . . . . . . . . . . . . . . . . . .

RECOMMENDED SERVICE CLEARANCE

. . . . . . . .

ELECTRICAL DATA

. . . . . . . . . . . . . . . . . . . . . . . . . . .

INSTALLATION

7- 13

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

HORIZONTAL AND VERTICAL ECONOMI$ER X

ACCESSORY INSTALLATION INSTRUCTIONS 14- 30

CRHEATER ACCESSORY INSTALLATION

INSTRUCTIONS

31- 38

. . . . . . . . . . . . . . . . . . . . . . . . . .

FS BOX INSTALLATION INSTRUCTIONS

39- 41

. . . .

CONNECTOR SPECIFICATIONS OF P.C. BOARD

MCC- 1570

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ADVANCED CONTROL

. . . . . . . . . . . . . . . . . . . . . . .

FUNCTION CODE (DN CODE) SETTING

. . . . . . . .

ELECTRIC HEATER CONTROL SETTING

45- 46

. . . .

TEST RUN

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . . . .

CHECK CODES AND PARTS TO BE CHECKED 49- 51

WIRING DIAGRAMS

52- 53

. . . . . . . . . . . . . . . . . . . . . .

STARTUP REPORT

. . . . . . . . . . . . . . . . . . . . . . . . . . .

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,

maintenance, or use can cause explosion, fire, electrical

shock or other conditions that 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/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,

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.

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

Catalog No. 18- 40QQ001- 01

Printed in U.S.A

Form 40QQ- 3SI

11- 18

Replaces: 40QQ- 2SI

40Q

Summary of Contents for 40QQ Series

Page 1: ...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 NFPA 70 National Electrical Code NEC in Canada CSA ...

Page 2: ...RD 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 refrigerants and oils WARNING CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sha...

Page 3: ...3 DIMENSIONS 1 2 3 Fig 2 Dimensional Drawing 40QQ ...

Page 4: ...4 DIMENSIONS CONT Fig 3 Dimensional Drawing 40QQ ...

Page 5: ...5 CENTER OF GRAVITY Fig 4 Center of Gravity Drawing 40QQ ...

Page 6: ...cer is electrically non conductive e g wood fiberglass NOTE The Unit is not designed to have overhead obstruction Contact Application Engineering for guidance on any application planning overhead obstruction or for vertical clearances ELECTRICAL DATA TABLE 2 VRF RTU Tonnage Model Number Voltage MCA A MOCP A 3 40QQ 036AAA3 0A0 208 230 1 60 8 00 15 40QQ 036AAAC 0A0 460 1 60 4 00 15 4 40QQ 048AAA3 0A...

Page 7: ... the steps of unit installation For example on curb mounted units some accessories must be installed on the unit before the unit is placed on the curb Review the following for recommended sequences for installation steps Curb Mounted Installation 1 Install curb 2 Install field fabricated ductwork inside curb 3 Prepare bottom condensate drain connection to suit planned condensate line routing refer...

Page 8: ...e unit is set on the roof curb NOTE Gasketing of the unit to the roof curb is critical for a watertight seal Install the gasket supplied with the roof curb as shown in Fig 6 Improperly applied gasket can also result in air leaks and poor unit performance Slab Mount Horizontal Units Only Provide a level concrete slab that extends a minimum of 6 inches 150 mm beyond unit cabinet Install a gravel apr...

Page 9: ...TITLE 1041738 CURB ASY ROOF ENGINEERING MANUFACTURING 004 007 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 ...

Page 10: ...D Failure to follow this warning could cause personal injury For vertical supply and return units tools or parts could drop into ductwork and cause an injury Install a 90 turn in the return ductwork between the unit and the conditioned space If a 90 elbow cannot be installed a grille of sufficient strength and density should be installed to prevent objects from falling into the conditioned space D...

Page 11: ...11 Fig 8 Rigging Label 40QQ ...

Page 12: ... with counter flashing and mastic in accordance with applicable codes Do not cover or obscure visibility to the unit s informative data plate when insulating horizontal ductwork Step 8 Install External Condensate Trap and Line Unit has one 3 4 inch condensate drain connection on the end of the condensate pan and an alternate connection on the bottom See Fig 10 Unit airflow configuration does not d...

Page 13: ..._F 33_C rise Field Installed Smoke Detector Field installed Smoke Detector by 3rd party When smoke detector is required by the building codes it must be installed and wired by a 3rd party vendor Carrier offers the Totaline 4 Wire Duct Smoke detector model P270 3000PL Recommended wiring requires using the dry contacts to cut power to the L1 or L2 power wiring coming into TB1 Typical Sequence of ope...

Page 14: ...compressor and PMV when the outdoor air temperature is too warm integrating the compressor and PMV with outdoor air when free cooling is available and closing the PMV when outdoor air temperature is too cold Demand control ventilation is supported The EconoMi er X system utilizes gear drive technology with a direct mount spring return actuator that will close upon loss of power The EconoMi er X sy...

Page 15: ...conoMi er X to the far left side of the opening See Fig 18 7 Slide the EconoMi er X all the way back into the unit until it locks into the horizontal opening of the unit 8 Secure the EconoMi er X mounting flanges to the unit with the screws provided See Fig 17 9 Install a screw through the pre punched hole in the EconoMi er X into the flange on the horizontal duct opening See Fig 18 10 Remove the ...

Page 16: ... the orange and brown wires in the wire bundle in the indoor fan section Connect the orange and brown wires to the corresponding connections on the mixed air temperature sensor See Figs 78 and 79 Reinstall the indoor fan motor access panel Mixed Air Temperature Sensor Mounting Location Mixed Air Temperature Sensor To Unit Control Box Fig 20 Mixed Air Sensor Placement 14 While everything is open in...

Page 17: ...ed so remove and discard it The controller is also shipped with two harnesses which will not be used so disconnect them from the W7220 and discard them 19 Install the controller in the top left corner of the unit control box as show in the wiring diagram See Fig 78 and 79 Attach it with 2 screws 20 The harness that connects to relays to the right side of the W7220 is screwed to the control box par...

Page 18: ...ndard serrated screws along bottom of panel for all units 25 Replace the indoor fan motor access panel 26 Install the hood filter by opening the filter clips which are located underneath the hood top Insert the aluminum filter into the bottom filter rack hood divider Push the filter into position past the open filter clips Close the filter clips to lock the filter into place See Fig 21 and 22 Econ...

Page 19: ...noMi er X assembly into the rooftop unit positioning the EconoMi er on the bottom left of the opening 7 Secure the EconoMi er X mounting flanges to the unit with the screws provided See Fig 28 Follow the instructions for the horizontal economizer from step 10 onwards HH79ZZ007 Outside Air Temperature Sensor Actuator Hidden Wiring Harness HH57AC081 Enthalpy Accessory Location Field Installed Fig 26...

Page 20: ...eypad when working with menus S Press Up arrow button to move to previous menu S Press Down arrow button to move to next menu S Press Enter button to display first item in currently displayed menu S Press Menu Up Exit button to exit a menu s item and return to the list of menus Using the Keypad with Settings and Parameters To use the keypad when working with Setpoints System and Advanced Settings ...

Page 21: ...e of measured mixed air from MAT sensor Displays _ _ _ F if not connected short or out of range DA TEMP __ _ F 0 to 140 F Displays when Discharge Air sensor is connected and displays measured discharge temperature Displays _ _ _ F if sensor sends invalid value if not connected short or out of range OA TEMP __ _ F 40 to 140 F Displays measured value of outdoor air temperature Displays _ _ _ F if se...

Page 22: ... With 2 speed fan units VENTMAX L low speed fan and VENTMAX H high speed fan settings are required 4 4V 2 to 10 VDC or 100 to 9990 cfm Increment by 10 Displays only if a CO2 sensor is connected Used for Vbz ventilation max cfm setpoint Displays 2 to 10 V if 3 sensors RA OA and MA In AUTO mode dampers controlled by CFM VENTMAX L 6V VENTMAX H 4 4V VENTMIN With 2 speed fan units VENTMIN L low speed f...

Page 23: ...values Advanced Setup MA LO SET 45 35 to 55 F Increment by 1 Temperature to achieve Freeze Protection close damper and alarm if temperature falls below setup value FREEZE POS CLO CLO or MIN Damper position when freeze protection is active closed or MIN POS CO2 ZERO 0ppm 0 to 500 ppm Increment by 10 CO2 ppm level to match CO2 sensor start level CO2 SPAN 2000ppm 1000 to 3000 ppm Increment by 10 CO2 ...

Page 24: ...r air temperature sensor has failed or become disconnected check wiring then replace if the alarm continues ACT ERROR N A N A Actuator has failed or become disconnected check for stall over voltage undervoltage and actuator count Replace actuator if damper is moveable and supply voltage is between 21 6 V and 26 4 V Check actuator count on STATUS menu FREEZE ALARM N A N A Check if outdoor temperatu...

Page 25: ...se Fig 30 and Tables 7 and 8 to locate the wiring terminals for the economizer module NOTE The four terminal blocks are removable You can slide out each terminal block wire it and then slide it back into place NA AUX2 OCC E GND EXH1 AUX1 O Y2 Y1 Y2 O Y1 O C R 50048848 002 Rev A NA A2 EX OCC A1 Y2O Y2I Y1O Y1I C R Cert Product HJW10 CaliforniaTitle 24 Part 6 www energy ca gov MAT MAT OAT OAT S BUS ...

Page 26: ...8 F to 80 F NOTE A 2nd HH79ZZ007 sensor is provided for mixed supply air temperature NOTE California high temperature setting requirements by region are shown below GREEN GREEN 20k Sensor 1 4 Terminal 2 Fig 32 HH79ZZ007 Sensor Table 10 California Title 24 Regional High Limit Dry Bulb Temperature Settings Table 140 4 B Air Economizer High Limit Shut Off Control Requirements Device Type Climate Zone...

Page 27: ...utes Heating with EconoMi er X During occupied mode operation indoor fan operation will be accompanied by economizer dampers moving to minimum position setpoint for ventilation If indoor fan is off dampers will close During unoccupied mode operation dampers will remain closed unless a DCV demand is received When the room temperature calls for heat W1 closes the heating controls are energized TROUB...

Page 28: ...lpy sensor In checkout the outdoor damper closes when I com mand it to open Check the actuator linkage or rotation In the CHECKOUT mode the outdoor damper should drive open or closed with the return air damper having the opposite effect How do I set my minimum position Minimum position is set using VENTMIN and VENTMAX setup in SETPOINTS menu VENTMIN is minimum ventilation required when using an oc...

Page 29: ...3 RELIEF FLOW CFM RETURN DUCT STATIC PRESSURE in wg Small Cabinet Fig 34 Barometric Flow Capacity 0 1000 2000 3000 4000 5000 6000 0 0 1 0 2 0 3 0 4 RETURN AIR FLOW CFM RETURN DUCT STATIC PRESSURE DROP in wg Small Cabinet Fig 35 Return Air Pressure Drop 40QQ ...

Page 30: ...to keep the desired indoor air quality levels Change of DN code setting Optional setting NOTE This STEP is optional and should be set if necessary Table 13 Change DN Code Settings Optional Operational status Default factory setting Constant fan setting Cooling Thermo OFF No demand PMV close Fan speed Remote Control setting speed Fan speed Remote Control setting speed Heating Thermo OFF No demand P...

Page 31: ...5 Ton CRHEATER102A00 3 CRSINGLE037A00 6 5 4 9 6 0 22 18 13 6 15 6 27 29 30 30 CRHEATER104B00 3 CRSINGLE037A00 10 5 7 9 9 6 35 83 21 9 25 3 37 41 40 45 CRHEATER105A00 3 CRSINGLE037A00 16 12 0 14 7 54 59 43 8 50 5 64 73 70 80 CRHEATER104B00 104B00 3 CRSINGLE038A00 21 15 8 19 3 71 65 33 4 38 5 51 58 60 60 Table 16 Electric Heat Field Installed Only 460V 3Ph 60Hz Tonnage Electric Heater Part Number E ...

Page 32: ...ched One or two heater modules may be used in a unit Heater modules are installed in the compartment below the indoor supply fan outlet Access is through the indoor access panel Heater modules slide into the compartment on tracks along the bottom of the heater opening See Fig 47 Some heaters are keyed with a restrictor bar on the heater frame or restrictor plate on the back of the heater mounting ...

Page 33: ...ll the electric heater module s and connect heater power conductors to single point box or main unit control box per appropriate connections 6 Connect the heater control contactors to unit terminal block TB4 7 Mark the unit rating plate to indicate which heater module s have been installed 8 Note the required wire size ampacity for the field power supply conductors as marked on the unit info plate...

Page 34: ...hown in Fig 40 Foil tape open screw holes on the back of the single point box as shown in Fig 40 Different single point boxes will have different screw holes open 6 All bushings in the area of the control box where the single point box SPB mounts must be removed prior to securing the SPB to the control box See Fig 41 Also for units installed in the snow belt all unplugged holes in the bottom of th...

Page 35: ...Fig 46 c All other heaters To install module engage flange on heater with track in unit and slide heater through mounting bracket opening Fasten heater module to heater mounting bracket with the four screws saved from Step 1 See Fig 46 3 Single phase heater conversion 208 230 v heaters 101A00 104B00 are factory wired for 3 phase applications but can be converted to single phase by changing one wir...

Page 36: ...r connection points or to optional factory supplied disconnect 5 Factory control wiring for heaters runs from unit control box to terminal block TB 4 mounted in heater compartment to left of module 1 location See Fig 39 Connect the heater control wiring at TB 4 CONDUIT CONDUIT WIRE TIE C COMM 30V OR 200V RD OV YL D 24V BD236B 75VA E 60 HZ 30 8703 N TRAN 3O BV2075 DRIP BOOT Fig 45 Typical Conduit I...

Page 37: ...e familiar with and observe all local codes regarding unit power supply wiring In most instances adding electric heaters to these units will result in an increase in unit power supply wire size compared to base unit electrical loads These changes may also impact the size selection of the branch circuit overload protection device and the unit safety disconnect switch Check the unit s informative da...

Page 38: ...infoplate for base unit plus electric heaters plus power exhaust if connected If the MIN CKT AMPS value is greater than the rated ampacity of the power supply wires the unit power supply conductors must be replaced NOTE Supply wiring must comply with NEC National Electrical Code and all local requirements Check the installed unit s branch circuit over current protection device fuse or HACR breaker...

Page 39: ...s and washers are included in the installation packet bag which is found in the control box of the unit Fig 54 shows the mounted FS box Fig 54 FS Unit Mounted to Threaded Rods 3 If required braze the appropriate adapter fittings onto both sides of the FS box as shown in Fig 55 The adapter fittings are included with the FS box Reference the FS box installation manual for sizing Then braze the liqui...

Page 40: ...onnector to CN81 on the rooftop unit control board and push the ferrite core through the rubber bushing to provide strain relief Then bundle and tie the extra wire CN81 Connec on Fig 59 CN81 Connector Ferrite Core Fig 60 Ferrite Core 8 Knock out the hole on the back of the FS box and install a Romex connector field supplied in the hole as shown in Fig 61 A power wire will be included with the FS b...

Page 41: ...8 230V transformer TRAN2 See Figs 64 and 65 For 460V 40QQ units Connect power and ground here using adapter harnesses and ground wire Fig 64 FS Box Power and Ground Connections for 460V 40QQ Units Fig 65 L1 and L2 Adapter for 460V Units 12 For 208 230V rooftop units connect directly to the Main power terminal block TB1 in the rooftop control box shown See Fig 66 For 208 230V units Connect power an...

Page 42: ...or pin 4 6 6 Alarm output ON signal output during alarm ON Optional output CN60 WHI 1 DC12V COM 2 Defrosting output ON while outdoor unit defrosted 3 Thermostat ON output ON while real thermostat ON 4 Cooling output auxiliary heating output SW501 bit1 2 ON OFF or OFF ON set ON while air condi tioner in cooling or related operation COOL DRY or cool ing under AUTO mode SW501 bit1 2 OFF OFF or ON ON ...

Page 43: ...ctional setting by DN code Changing of settings for applicable controls DN code setting Basic procedure for changing settings Change the settings while the air conditioner is not working Be sure to stop the air conditioner before making settings Fig 67 Field Settings Menu Procedure 1 1 Push the MENU button 2 Push the MENU button simultaneously for more than 4 seconds 3 Push the button to select 7 ...

Page 44: ...control 0002 Fire alarm input 0000 Usual HA terminal 31 Ventilation fan control 0000 Unavailable 0001 Available 0000 Unavailable 32 Remote control sensor 0000 Body TA sensor 0001 Remote control sensor 0000 Body TA sensor 33 Temperature unit select 0000 C 0001 F 0001 F 5A EconoMi er Free cooling mode 0000 Unavailable 0001 Available 0000 Unavailable 60 Timer setting wired remote controller 0000 Avai...

Page 45: ...ater STEP2 Change of DN code setting Required setting activation for Electric heater control Table 27 DN Code Settings Set data of DN DC Comments 0000 Factory Setting 0001 or more Activate EHeater Fig 71 Control Outline TA DN DC determines the value of AS H Set Data 0000 0001 0002 0003 0004 0005 AS H F 0 0 0 9 1 8 2 7 3 6 4 5 Set Data 0006 0007 0008 0009 0010 AS H F 5 4 6 3 7 2 8 1 9 0 TA Temperat...

Page 46: ...hange of AH L value by DN DB It is possible to change the following DN setting as an optional function Set Data of DN DB Comments 0006 Active Factory setting 5 4 F DN DB determines the value of AH L Set Data 0000 0001 0002 0003 0004 0005 0006 0007 0008 0009 0010 AH L F 0 0 0 9 1 8 2 7 3 6 4 5 5 4 6 3 7 2 8 1 9 0 Factory Setting 40QQ ...

Page 47: ...setting menu screen then push the Set F2 button Pushing the Yes F1 button sets the test mode and the screen returns to the Field setting menu screen 5 Push CANCEL twice the following screen displays Fig 73 Field Setting Menu Test Mode 6 Push the ON OFF button to start the test mode The following screen displays Fig 74 Test Mode 7 The following screen displays when the operation is stops Perform te...

Page 48: ...ction occurs refer to the check code on the remote controller NOTE The check code only appears during operation while the unit is running Push the MONITOR button or CANCEL button to display the check information screen F Fig 77 Check Information Screen 40QQ ...

Page 49: ...und as shown in the table below Check Code List The following list shows each check code Find the check contents from the list according to part to be checked S To check from indoor remote control See Wired remote control display in the list S To check from outdoor unit See Outdoor 7 segment display in the list S To check from indoor unit with a wireless remote control See Sensor block display of ...

Page 50: ...50 Table 29 Check Code 2 40QQ ...

Page 51: ...51 Table 30 Check Code 3 40QQ ...

Page 52: ...52 WIRING DIAGRAMS Fig 78 40QQ Power Wiring Diagram 208 230V 60Hz 40QQ ...

Page 53: ...53 WIRING DIAGRAMS CONT Fig 79 40QQ Power Wiring Diagram 460V 60Hz 40QQ ...

Page 54: ...Is field provided freeze protection present if required Is fan wheel turning in the correct direction Is the filter clean Structural Is the unit properly supported Is unit installed level necessary for proper condensate drainage Is properly sized condensate trap present Is the condensate disposal system operating correctly Piping Checklist Is the DX system charged per the condensing unit instructi...

Page 55: ... reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 18 40QQ001 01 Printed in U S A Form 40QQ 3SI 11 18 Replaces 40QQ 2SI 40QQ ...

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