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

Catalog No. 04-53500211-01

Printed in U.S.A.

Form 50HCQ-7-9-06SI

Pg CL-1

1-19

Replaces: 50HCQ-7-9-05SI

START-UP CHECKLIST FOR 50HCQ07-09 SINGLE PACKAGE ROOFTOP

HEAT PUMP

(REMOVE AND USE FOR JOB FILE)

I. PRELIMINARY INFORMATION

MODEL NO. ____________________________________________

JOB NAME _____________________________________________

SERIAL NO. ____________________________________________

ADDRESS _____________________________________________

START-UP DATE________________________________________

TECHNICIAN NAME _____________________________________

ADDITIONAL ACCESSORIES

_____________________________________________________________________________________________________

II. PRE-START-UP

Verify that all packaging materials have been removed from unit (Y/N) _____
Verify installation of outdoor air hood (Y/N) _____
Verify that condensate connection is installed per instructions (Y/N) _____
Verify that all electrical connections and terminals are tight (Y/N) _____
Check that indoor-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) _____
Verify installation of thermostat (Y/N) _____

III. START-UP

ELECTRICAL

Supply Voltage

L1-L2_____________

L2-L3_____________

L3-L1_____________

Compressor Amps 1

L1 _____________

L2 _____________

L3 _____________

Compressor Amps 2

L1 _____________

L2 _____________

L3 _____________

Supply Fan Amps

L1 _____________

L2 _____________

L3 _____________

TEMPERATURES

Outdoor-air Temperature

_____________ °F DB (Dry Bulb)

Return-air Temperature

_____________ °F DB

_____________

°

F Wb (Wet Bulb)

Cooling Supply Air Temperature

_____________ °F

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 preced-

ing sections of this Installation Instruction document.

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Содержание 50HCQD07

Страница 1: ...CONTROLLER FACTORY OPTION CONTROLLER OPTIONS Step 12 Adjust Factory Installed Options 45 SMOKE DETECTORS ECONOMI ER IV OCCUPANCY SWITCH Step 13 Install Accessories 45 Step 14 Check Belt Tension 47 BELT FORCE DEFLECTION METHOD BELT TENSION METHOD Pre Start and Start Up 47 Typical Unit Piping 47 START UP CHECKLIST CL 1 SAFETY CONSIDERATIONS Improper installation adjustment alteration service mainten...

Страница 2: ...nit rating plate Unit may have more than one power switch WARNING UNIT OPERATION AND SAFETY HAZARD Failure to follow this warning could cause personal injury death and or equipment damage Puron R 410A refrigerant systems operate at higher pres sures than standard R 22 systems Do not use R 22 service equipment or components on Puron refrigerant equipment WARNING PERSONAL INJURYAND ENVIRONMENTAL HAZ...

Страница 3: ...oMi er IV Non Fault Detection and Diagnostic 1 PremierLinkTM Controller 2 RTU Open Multi Protocol Controller 6 Electro mechanical with W7220 Economizer controller Controls Can be used with W7220 EconoMi er X with Fault Detection and Diagnostic Intake Exhaust Options A None B Temperature Economizer w Barometric Relief F Enthalpy Economizer w Barometric Relief K 2 Position Damper U Temperature Ultra...

Страница 4: ...4 Fig 2 Unit Dimensional Drawing 07 08 Size Units ...

Страница 5: ...5 Fig 2 Unit Dimensional Drawing 07 08 Size Units cont ...

Страница 6: ...6 Fig 3 Unit Dimensional Drawing 09 Size Units ...

Страница 7: ...7 Fig 3 Unit Dimensional Drawing 09 Size Units cont ...

Страница 8: ... onto unit Select a unit mounting system that provides adequate height to allow installation of condensate trap per requirements Refer to Step 10 Install External Condensate Trap and Line on page 14 for required trap dimensions Fig 4 Service Clearance Dimensional Drawing NOTE Unit not designed to have overhead obstruction Contact Application Engineering for guidance on any application planning ove...

Страница 9: ...ure all latches are snug and in closed position Locate the carton containing the outside air hood parts Do not remove carton until unit has been rigged and located in final position Step 4 Provide Unit Support ROOF CURB MOUNT Accessory roof curb details and dimensions are shown in Fig 5 Assemble and install accessory roof curb in accordance with instructions shipped with the curb Curb should be le...

Страница 10: ...THOUT THE WRITTEN AUTHORIZATION OF CARRIER CORPORATION 1 DEC 2 DEC 3 DEC ANG MATERIAL AUTHORIZATION NUMBER TITLE 1029120 CURB ASY ROOF ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS SIZE DRAWING NUMBER REV T 005 Y 002 DRAFTER CHECKER D 50HJ405012 C WEIGHT MMC 12 16 09 SHEET 5 OF 5 SURFACE FINISH MFG PURCH MODEL INTERNAL USE ONLY NEXT DRAWING SCALE DISTRIBUTION PURCH N A NOTES 1 ROOFCURB ACCESS...

Страница 11: ...etween the roof curb and the base rail inside the front and rear 0 0 in clearance be tween the roof curb and the base rail inside on the duct end of the unit This will result in the distance between the roof curb and the base rail inside on the condenser end of the unit being approximately 1 4 in 6 4 mm Although unit is weatherproof guard against water from higher level runoff and overhangs After ...

Страница 12: ...e secured to the flanges In sulate and weatherproof all external ductwork joints and roof or building openings with counter flashing and mastic in accor dance with applicable codes Do not cover or obscure visibility to the unit s informative data plate when insulating horizontal ductwork Fig 8 Horizontal Conversion Panels Fig 9 Location of Notches DETAIL A PLACE ALL SEAL STRIP IN PLACE BEFORE PLAC...

Страница 13: ...d to a metal support tray using plastic stretch wrap Located in the re turn air compartment the assembly s metal tray is attached to the basepan and also attached to the damper using two plastic tie wraps 1 To gain access to the hood remove the filter access panel See Fig 11 2 Locate the 2 screws holding the metal tray to the basepan and remove Locate and cut the 2 plastic tie wraps secur ing the ...

Страница 14: ...ood top 7 Replace the filter access panel Fig 16 Economizer Filter Installation Step 9 Units with Hinged Panels Only Relocate latch shipped inside the compressor compartment be hind the hinged compressor door to location shown in Fig 17 after unit installation If the unit does not have hinged panels skip this step and con tinue at Step 10 below Fig 17 Compressor Door Latch Location Step 10 Install...

Страница 15: ... and discard before connecting field power wires to unit con nection points Make field power connections directly to line con nection pressure lugs only Connect field power supply conductors to LINE side terminals when the switch enclosure cover is removed to attach the handle Fig 20 Disconnect Switch and Unit UNITS WITHOUT FACTORY INSTALLED DISCONNECT When installing units provide a disconnect sw...

Страница 16: ...n 50HCQ mod els non powered and unit powered Both types provide a 125 volt GFCI ground fault circuit interrupter duplex receptacle rated at 15A behind a hinged waterproof access cover located on the end panel of the unit See Fig 22 Fig 22 Convenience Outlet Location Installing Weatherproof Cover A weatherproof while in use cover for the factory installed convenience outlets is now required by UL s...

Страница 17: ...nted convenience outlet circuits will often require that two disconnects be opened to de energize all pow er to the unit Treat all units as electrically energized until the convenience outlet power is also checked and de energization is confirmed Observe National Electrical Code Article 210 Branch Circuits for use of convenience outlets Fuse On Power Type The factory fuse is a Bussman Fusetron 1 T...

Страница 18: ...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 maximum allowable 2 FIELD CONTROL WIRING The 50HCQ unit requires an external temperature control de vice This device can be a thermostat field supplied or a Pre mierLink controller available as factory installed option or as field installed accessory for ...

Страница 19: ...o defrost thermo stats Refer to Table 3 for details of DFB Inputs and Outputs Reversing valve control The DFB has two outputs for unit reversing valve control Op eration of the reversing valves is based on internal logic this application does not use an O or B signal to determine re versing valve position Reversing valves are energized during the cooling stages and the defrost cycle and de energiz...

Страница 20: ...1 DI 24 vac P2 7 CTB W1 W2 Heat 2 DI 24 vac P2 6 CTB W2 R Power 24 vac P3 1 CONTL BRD 8 C Common 24 vac P3 2 CONTL BRD 4 DFT 1 DI 24 vac DFT 1 to DFT 1 DFT 2 DI 24 vac DFT 2 to DFT 2 OUTPUTS IFO Fan On DO 24 vac P3 9 REHEAT HP 2 OF OD Fan On DO 24 vac OF OFR RVS1 DO 24 vac P3 7 to P3 5 Energize in COOL RVS2 DO 24 vac P3 6 to P3 4 Energize in COOL COMP 1 DO 24 vac P3 10 FPT1 REHEAT HP 6 COMP2 DO 24...

Страница 21: ...the end of the Defrost cycle Fig 31 DIP Switch Settings Defrost Board ELECTRIC HEATERS 50HCQ units may be equipped with field installed accessory electric heaters The heaters are modular in design with heater frames holding open coil resistance wires strung through ce ramic insulators line break limit switches and a control con tactor One or two heater modules may be used in a unit Heater modules ...

Страница 22: ...tallation instructions for details on tap connections on the field installed electric heat accessory All fuses on 50HCQ units are 60 A Note that all heaters are qualified for use with a 60 A fuse regardless of actual heater ampacity so only 60 A fuses are necessary Single Point Boxes without Fuses Refer to accessory heater and single point box installation in structions for details on tap connecti...

Страница 23: ...1 Connect the VIO leads from Heater 1 and Heater 2 to terminal TB4 1 Connect the BRN leads to terminal TB4 3 See Fig 36 Fig 36 Accessory Electric Heater Control Connections CONTROL AND POWER WIRING DIAGRAMS Figures 37 44 are typical control and power wiring diagrams DEFROST BOARD ORN BRN Field Connections E HEAT P3 3 3 1 ORN BRN VIO BRN BRN VIO TB4 VIO HR2 HR1 BRN VIO BRN Elec Htr HR1 On Heater 1 ...

Страница 24: ...24 Fig 37 Electro Mechanical Control Wiring 50HCQ A07 D07 208 230v 460v 575v ...

Страница 25: ...25 Fig 38 Electro Mechanical Control Wiring 50HCQ D07 Tier 2 1 Compressor 208 230v 460v 575v ...

Страница 26: ...26 Fig 39 Electro Mechanical Control Wiring 50HCQ 08 09 208 230v 460v 575v ...

Страница 27: ...27 Fig 40 Electro Mechanical Power Wiring 50HCQ A07 D07 208 230v 460v 575v ...

Страница 28: ...28 Fig 41 Electro Mechanical Power Wiring 50HCQ D07 Tier 2 1 Compressor 208 230v 460v 575v ...

Страница 29: ...29 Fig 42 Electro Mechanical Power Wiring 50HCQ 08 09 208 230v 460v 575v ...

Страница 30: ...30 Fig 43 PremierLink Wiring Schematic 50HCQ07 09 208 230v 460v 575v ...

Страница 31: ...31 Fig 44 RTU Open System Control Wiring ...

Страница 32: ...nterface provides status for normal operation setup parame ters checkout tests and alarm and error conditions with a 2 line 16 character LCD display and four button keypad Electrical Rated Voltage 20 to 30 Vac RMS 50 60 Hz Transformer 100 va maximum system input Nominal Power Consumption at 24 Vac 60 Hz 11 5 VA without sensors or actuators Relay Digital Output Rating at 30 Vac maximum power from C...

Страница 33: ...ty Insensitive Connection S 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 Actuat...

Страница 34: ... See Fig 48 for CO2 sensor wiring Fig 48 CO2 Sensor Wiring Interface Overview This section describes how to use the EconoMi er user inter face for Keypad and menu navigation Settings and parameter changes Menu structure and selection User Interface The user interface consists of a 2 line LCD display and a 4 but ton keypad on the front of the economizer controller Keypad Use the four navigation but...

Страница 35: ...ARMS NOTE Some parameters in the menus use the letters MA or MAT indicating a mixed air temperature sensor location before the cooling coil This unit application has the control sensor locat ed after the cooling coil in the fan section where it is designated as Cooling Supply Air Temperature or SAT sensor Setup and Configuration Before being placed into service the W7220 Economizer mod ule must be...

Страница 36: ...of measured mixed air from MAT sensor Displays _ _ _ F if not connected short or out of range DA TEMP _ _ _ F 0 to 140 F DISCHARGE AIR TEMPERATURE after Heating section Displays when Discharge Air sensor is connected and displays measured dis charge temperature Displays _ _ _F if sensor sends invalid value if not connected short or out of range OA TEMP _ _ _ F 40 to 140 F OUTSIDE AIR TEMP Displays...

Страница 37: ...is NOT connected VENTMAX With 2 speed fan units VENTMAX L low speed fan and VENTMAX H high speed fan settings are required 2 8 V 2 to 10 Vdc DCV MAXIMUM DAMPER POSITION 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 100 to 9990 cfm increment by 10 If OA MA RA and CO2 sensors ar...

Страница 38: ...actory defaults when set to YES LCD will briefly flash YES and change to NO but all parameters will change to the factory default values NOTE RECHECK AUX2 IN and FANTYPE for required 2 speed values ADVANCED SETUP MA LO SET 45 F 35 to 55 F Incremented by 10 SUPPLY AIR TEMPERATURE LOW LIMIT Temperature to achieve Freeze Protection close damper and alarm if tem perature falls below setup value FREEZE...

Страница 39: ...gnals 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 exhaust fan 2 relay EXH1 ALARMS Alarms display only when they are active The menu title ALARMS includes the number of active alarms in parenthesis When using SYLK bus sensors SYLK will appear on the screen and when using 20k OA temperatu...

Страница 40: ...um position settings and checkout menu readings see Table 11 See Tables 12 19 for dry bulb and en thalpy sequence of operation Table 11 Damper Minimum Position Settings and Readings on Checkout Menu MENU PARAMETER PARAMETER DEFAULT VALUE PARAMETER RANGE AND INCREMENT NOTES ALARMS CONT SHUTDOWN ACTIVE N A N A AUX2 IN is programmed for SHUTDOWN and 24 V has been applied to AUX2 IN terminal DMP CAL R...

Страница 41: ...MIN POS to Full Open Closed to Full Open On On High 24 v On 24 v Off MIN POS to Full Open Closed to Full Open 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 ...

Страница 42: ...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 Set No Off Off High 0 v Off 0 v Off VENTMIN to VENTMAX Closed On Off High 24 ...

Страница 43: ...ing mode to YES economizing is available When all of the OA conditions are above the selected bound ary the conditions are not good to economize and the mode is set to NO Figure 50 shows the 5 current boundaries There is also a high limit boundary for differential enthalpy The high limit bound ary is ES1 when there are no stages of mechanical cooling en ergized and HL high limit when a compressor ...

Страница 44: ... be performed at the time of installa tion or at any time during the operation of the system as a test that the system is operable Troubleshooting Alarms The economizer module provides alarm messages that display on the 2 line LCD NOTE Upon power up the module waits 60 minutes before checking for alarms This allows time for all the configured devic es e g sensors actuator to become operational The...

Страница 45: ...ors including multiple unit coordination RTU OPEN CONTROLLER FACTORY OPTION For details on operating 50HCQ units equipped with the facto ry installed RTU Open controller option refer to the Factory Installed Option RTU Open Multi Protocol Controller Con trols Start Up Operation and Troubleshooting manual CONTROLLER OPTIONS Low Ambient If the unit comes with Electro Mechanical EM control then no ad...

Страница 46: ...46 Fig 52 Completing Installation of Return Air Smoke Sensor Fig 53 EconoMi er IV Wiring STEP 1 STEP 2 STEP 3 ...

Страница 47: ...ion in belt in units of lbs force Fig 54 V Belt Force Label Fig 55 Belt Drive Motor Mounting Pre Start and Start Up This completes the mechanical installation of the unit Refer to the unit s Service Manual for detailed Pre Start and Start Up instructions Download the latest versions from HVAC Part ners www hvacpartners com Typical Unit Piping Each heat pump refrigeration system includes a compress...

Страница 48: ...5 ton units only Table 21 Cooling Mode each circuit COMPONENT STATUS POSITION Reversing Valve Energized Check Valve A Closed Check Valve B Open Check Valve C Closed Check Valve D Open Table 22 Heating Mode each circuit COMPONENT STATUS POSITION Reversing Valve De energized Check Valve A Open Check Valve B Closed Check Valve C Open Check Valve D Closed Table 23 Defrost Mode COMPONENT STATUS POSITIO...

Страница 49: ......

Страница 50: ...to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500211 01 Printed in U S A Form 50HCQ 7 9 06SI Pg 50 1 19 Replaces 50HCQ 7 9 05SI Carrier Corporation 2019 ...

Страница 51: ...minals are tight Y N _____ Check that indoor 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 ar...

Страница 52: ...r 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 _____ 5 Switch unit to high latent mode sub cooler by closing humidistat with Y1 closed Y N _____ OBSERVE A Reduction in ...

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