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1-Jun-2018

Page 61

002000MAN-01

COMPRESSOR TROUBLESHOOTING

Fault

Possible Cause

Verification

Recommended Action

Compressor will

not start

Faulty control board.

No 24vac output on STAGE1 when

compressor should be operating.

Replace control board.

Faulty run capacitor.

(Single phase only)

Check value with capacitance meter.

Should match label on capacitor.

Compressor will hum while trying to

start and then trip its overload.

Replace if faulty.

Loose or faulty wiring.

Check all compressor wiring, includ-

ing inside compressor electrical box.

Fix any loose connections. Re-

place any damaged wires.

Faulty compressor

contactor.

Voltage on line side with contactor

held closed, but no voltage on one

or both terminals on the load side.

Points pitted or burned.

Or, 24VAC across coil but contactor

will not engage.

Replace contactor.

Thermal overload on

compressor tripped.

Ohmmeter shows reading when

placed across R and S terminals

and infinity between C & R or C & S.

A valid resistance reading is present

again after the compressor has

cooled down.

Proceed to Operation Trouble-

shooting to determine the cause

of the thermal overload trip.

Burned out motor

(open winding)

Remove wires from compressor.

Ohmmeter shows infinite resistance

between any two terminals. Note:

Be sure compressor overload has

had a chance to reset. If compressor

is hot this may take several hours.

Replace the compressor.

Burned out motor

(shorted windings)

Remove wires from compressor.

Resistance between any two termi-

nals is below the specified value.

Replace the compressor.

Motor shorted to ground.

Remove wires from compressor.

Check for infinite resistance be-

tween each terminal and ground.

If any terminal to ground is not

infinite replace the compressor.

Seized compressor due to

locked or damaged

mechanism.

Compressor attempts to start but

trips its internal overload after a few

seconds. (Run capacitor already

verified)

Attempt to “rock” compressor free.

If normal operation cannot be

established, replace compressor.

Compressor

starts hard

Start capacitor faulty.

(Single phase only)

Check with capacitance meter.

Check for black residue around

blowout hole on top of capacitor.

Replace if faulty.

Remove black residue in electrical

box if any.

Potential relay faulty.

(Single phase only)

Replace with new one and verify

compressor starts properly.

Replace if faulty.

Compressor is “tight” due

to damaged mechanism

Compressor attempts to start but

trips its internal overload after a few

seconds. Run capacitor has been

verified already.

Attempt to “rock” compressor free.

If normal operation cannot be es-

tablished, replace compressor.

Compressor

stage 2 will not

activate

Faulty stage 2 module

Verify if 24VAC is present across

Y2 and C of the terminal strip.

Replace module if signal is pre-

sent. Check wiring if signal is not

present.

Содержание ATF-45

Страница 1: ...td P O Box 2555 170 Plantation Road Petitcodiac NB E4Z 6H4 506 756 8135 ATF Series Air Source Triple Function Heat Pump Two stage R410a 60Hz Model Sizes 45 75 info nordicghp com www nordicghp com 0020...

Страница 2: ...system must be employed whenever repairs require removal of refrigerant from the equipment SAFETY PRECAUTIONS Model Nomenclature Series ACE All weather Condenser Evaporator air source outdoor unit No...

Страница 3: ...E L R 02 ATF 55 P 1 2 4 T C Y Z S D E L R 02 ATF 65 P 1 2 4 T C Y Z S D E L R 02 ATF 75 P 1 2 4 T C Y Z S D E L R 02 This manual applies only to the models and revisions listed in this table FUNCTION...

Страница 4: ...Duct Sizing Guide 28 ACE Series Outdoor Unit Line Set 29 Line Set Interconnect Tubing 29 Oil Traps 29 Pipe Insulation 29 Silver Soldering Line Sets 29 Pressure Testing 29 Vacuuming the System 29 Char...

Страница 5: ...liary 83 Table 39 Airflow Range for Fan Recirculation 83 Table 40 Airflow Range for Emergency 83 Table A1 Control Board Connector Descriptions Top 102 Table A2 Control Board Connector Descriptions Lef...

Страница 6: ...fan freeze up and to prevent snow from entering the unit through the fan opening during a snow storm The outdoor fan is controlled based on the suction pres sure and will slowly ramp up to the requir...

Страница 7: ...age 2 SIMULTANEOUS DEMANDS HYDRONIC PRIORITY If there is a call for both stage 1 air and stage 1 hydronic both stage 2 air and stage 1 hydronic both stage 1 air and stage 2 hydronic both stage 2 air a...

Страница 8: ...a good compromise between covering as much of the cold weather heat load as possible without utiliz ing backup heat while minimizing excessive cycling turning on and off frequently during moderate out...

Страница 9: ...om the PC unit to pre vent premature corrosion problems WARNING Pool chemicals should be inject ed downstream of the PC unit Sample Bill of Materials Although not exhaustive following is a list of mat...

Страница 10: ...y to the access panel 7 Install the fan panel in the new location and secure with the screw 8 Reconnect both harnesses and ground wire 9 Install the remaining access panel and secure with the remainin...

Страница 11: ...1 Jun 2018 Page 11 002000MAN 01 Average Maximum Snow Depth Canada 1979 1997 Source Natural Resources Canada...

Страница 12: ...Page 12 002000MAN 01 1 Jun 2018...

Страница 13: ...ection for 230V circulator 115 230 Connection for 115V or 230V circulator TABLE 4 Outdoor Unit Power Supply Connections Line Description L1 Supply line L2 Supply line GND Ground Use a two conductor ou...

Страница 14: ...Connect only to the indoor unit In the outdoor unit leave this wire unconnected and cut it short at the cable sheath TABLE 9 Air Thermostat Connections Signal Description C 24VAC common ground R 24VA...

Страница 15: ...1 Jun 2018 Page 15 002000MAN 01...

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Страница 19: ...ted the DHW switch on the front of the unit may be used to enable disable the domestic hot water circu lator The DHW loop may have to be purged of air several times before good circulation is obtained...

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Страница 25: ...1 Jun 2018 Page 25 002000MAN 01...

Страница 26: ...or grills placed around the perimeter of the room Supply grills should be placed under a window when possible to help prevent condensation on the window As mentioned in the previous sub section supply...

Страница 27: ...1 Jun 2018 Page 27 002000MAN 01...

Страница 28: ...17 16 5 x 16 5 22 944 2250 20 10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18 5 x 18 5 22 1062 2600 20 10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18 5 x 18 5 24 1227 2900 22 12 x 36 14 x 30 16 x 26 18 x 23 2...

Страница 29: ...that no oxidation occurs on the inside of the copper tubing Connect a set of refrigeration gauges to the service ports Schrader ports on the access valves of the indoor unit the low side blue hose to...

Страница 30: ...with a hex key Open the valves counter clockwise until they stop turning Replace the caps and tighten with a wrench The system is now ready for startup Clean up the area install all access panels exce...

Страница 31: ...1 Jun 2018 Page 31 002000MAN 01...

Страница 32: ...Indoor Loop ICR This is the default method and uses the Indoor OUT tem perature probe inside the unit for temperature control Its value is displayed in the Hot Tank box on the PC App s View Set point...

Страница 33: ...ator will come on and the Out door Reset table will appear The Heating Setpoints Adjustments will move to the top row of the Outdoor Reset Table The Delta Adjustments will remain where they were The c...

Страница 34: ...age 1 rather than at the same time as stage 1 There are three main advantages to this Less aquastat probe lag leading to reduced overshoot as the tank temperature rate of change is reduced when only s...

Страница 35: ...Time The control board date and time will be set to that of the PC PC Application Menus The following pages describe the PC APP s menus in detail There are five main menus File View Graphs Tools Help...

Страница 36: ...eed setpoint pressure and current pres sure Refrigeration system pressure data along with alarm indicators Refrigeration system temperature data Defrost data start pressure at which defrost will be tr...

Страница 37: ...r which the low pressure alarm will be re enabled This allows a dip in suction pressure below the cutout point during startup without causing a nuisance alarm High Pressure A high pressure alarm occur...

Страница 38: ...e Timer counts down time until the next com pressor start is allowed ALARMS LIST Tab This tab show a history of alarms that have occurred since the PC APP was connected to the control board This list...

Страница 39: ...ns A failure has occurred and the Control board may no longer respond to menu button keypresses Try turning off the power disconnecting and reconnecting the cable between the LDC Display board and the...

Страница 40: ...trol Shows the on board aquastat control screen This screen is only available when Control Source HYD on the Configuration Page is set to Setpoints Hit the Outdoor Reset button shown here by the red a...

Страница 41: ...and values Click on the EDIT button to modify the blue boxes button will now say SAVE For each channel a name may be selected up to 16 characters and the multiplier and Offset values may be set to acc...

Страница 42: ...en on the keyboard and then paste into MS Paint or other graphics program Select the desired graph with the selection tool and copy it to a new MS Paint then save the file as the de sired name Availab...

Страница 43: ...amples x Refresh rate e g 20 samples by 1 second refresh elapsed time of 20 seconds Graph Printed Time Refresh Rate Primary Y axis on the left Second ary Y axis on the right Below is an example of a t...

Страница 44: ...ines the low pressure cutout val ue They are preset to air for this series NOTE There is no selec tion for the Hydronic Indoor Loop since there is no cool ing mode for it Low pressure cutouts are dete...

Страница 45: ...selected for Control Source HYD Select Indoor Loop default for the Indoor Circulator Sampling method or HTS CTS to use external probes mounted in tanks Air Hydronic Priority Select whether air or hyd...

Страница 46: ...within the range limits Items that do not apply to the model are greyed out Maximum Count is the number of alarms allowed before a per manent lockout oc curs Count Reduce Time is the number of hours...

Страница 47: ...or confirmation Tools Reset to Factory Defaults This will reset all parameters to default values THE SYSTEM MUST BE RECONFIGURED AFTER A RESET IS PERFORMED A reset will default the system to a two sta...

Страница 48: ...e on board datalogging screen The datalog rate is set via the dropdown box at the top right of the PC App A log will be taken at the datalog rate whenever the system is operating or the system is off...

Страница 49: ...nfigurable memory spaces with their name and current value and allows them to be edited directly To change a parameter value type in the new value and press ENTER Clicking on menu item Tools Parameter...

Страница 50: ...Page 50 002000MAN 01 1 Jun 2018 Tools SYSTEM TIMERS This page shows all internal timers by name along with their current values...

Страница 51: ...ws what is displayed based on each press of the ENTER button starting at the Main Menu level ENTER From Main ENTER First Press ENTER Second Press ENTER Third Press Description Setpoint Control only if...

Страница 52: ...onality Setpoints Method ICR Use Indoor Circulator Relay sampling HTS CTS Use external temperature sensors Time Delays Short Cycle Short cycle timer delay in minutes Units Standard Standard units Metr...

Страница 53: ...f the objects applicable to this model series along with a description of each Note that there may be other objects available that do not apply to this model BACnet Interface TABLE 21 BACnet OBJECTS C...

Страница 54: ...r Fan speed PWM2 Analog Value AV2 Present Value PWM output value spare PWM3 Analog Value AV3 Present Value PWM output value spare PWM4 Analog Value AV4 Present Value PWM output value spare STAGE1 Bina...

Страница 55: ...ire system has been flooded and all the air has been purged as much as possible Further purging may be required after the system has been operating for a while 3 Verify that the brown wire with the in...

Страница 56: ...g mode and adjust the setpoint to activate stage 1 and stage 2 2 Monitoring the refrigeration gauges while the unit runs Record the following after 10 minutes of runtime 1 Suction pressure 2 Discharge...

Страница 57: ...of debris Plenum heater is securely fastened if applicable Indoor Loop Hydronic All shut off valves are open full flow available Loop is full and purged of air Loop static pressure psig kPa Domestic H...

Страница 58: ...gallon bucket STEP 3 Connect a purge cart to the pump module purge ports STEP 4 Place 2 gallons of RYDLYME or similar lime removing solution in the purge cart Circulate the fluid through the heat exc...

Страница 59: ...to 10 seconds POWER SUPPLY TROUBLESHOOTING Fault Possible Cause Verification Recommended Action No power to the heat pump Disconnect switch open if installed Verify disconnect switch is in the ON posi...

Страница 60: ...it should be off Go to Com pressor section if compressor is not on when it should be Multiple Defrosts This alarm occurs if a second defrost occurs immediately after the defrost disabled timer expires...

Страница 61: ...ance to reset If compressor is hot this may take several hours Replace the compressor Burned out motor shorted windings Remove wires from compressor Resistance between any two termi nals is below the...

Страница 62: ...ing low Indoor Loop delta T Remove 1 2 lb of refrigerant at a time and verify that the discharge pressure reduces Low suction pressure Indoor OUT temperature too cold on startup or if unit has been of...

Страница 63: ...nsure the circulator s start and stop Replace relay Random manual high pressure trip may not oc cur while on site Faulty compressor contac tor Points pitted or burned Contactor sometimes sticks causin...

Страница 64: ...old e g on startup or if unit has been off for extended period Ensure entering air temperature is above the low limit indicated in the Model Specific Information sec tion Reduce airflow temporarily un...

Страница 65: ...e pressure reduces OPERATION TROUBLESHOOTING AIR HEATING MODE Fault Possible Cause Verification Recommended Action Compressor frosting up See Low Suction Pressure in this section EEV frosting up EEV s...

Страница 66: ...his section EEV frosting up EEV stuck almost closed or partially blocked by for eign object Manually adjusting the EEV does not affect the superheat or the suc tion pressure Low superheat and discharg...

Страница 67: ...Control board not config ured properly Verify that the model series is cor rect on the Configuration Page of the PC APP Correct the configuration If the wrong series is selected there may be not be a...

Страница 68: ...se the PC APP and put the system in manual override mode Manually adjust the EEV position by at least 25 either up or down and check to see that the suction pressure discharge pressure and superheat r...

Страница 69: ...cy when it should Or thermostat indicates aux iliary or emergency but no 24VAC signal present across C and the auxil iary and or emergency pin at the ther mostat Replace thermostat Faulty thermostat w...

Страница 70: ...mp cabinet post Turn switch on Blockage or restriction in the water line or hot water heat exchanger Check water flow and power to pump Check water lines for obstructions Remove obstruction in water l...

Страница 71: ...rcuit is ready for vacuuming STEP 2 Release the refrigerant circuit pressure and connect the vacuum pump to the charging manifold Start the vacuum pump and open the charging manifold valves Vacuum unt...

Страница 72: ...F 55 12 0 76 ATF 65 14 0 88 ATF 75 16 1 0 Table 29 Outdoor Unit Sound Levels dBA MODEL 1 ft distance 3 ft distance 5 ft distance 10 ft distance Front Side Front Sides Front Sides Front Sides ACE 45 68...

Страница 73: ...Airflow Stage Input Energy Capacity EER COPC Input Energy Capacity EER COPC cfm L s Watts Btu hr kW Btu W hr W W Watts Btu hr kW Btu W hr W W 45 1200 566 2 2 235 34 100 10 0 15 2 4 47 2 605 31 400 9 2...

Страница 74: ...H2o Ext Static Air Cooling Mode ATF 45 HACW P 1T R410a 60 Hz Outdoor Unit Electrical Cooling Data Indoor Unit Air Temp Condensing Temp Rejection Compressor Current Input Power EAT Evaporating Temp Air...

Страница 75: ...0 15 0 22 1 2 699 40 0 44 7 0 631 42 1 2 1 5 586 19 5 5 12 856 11 1 2 742 104 113 10 0 108 4 4 4 22 026 2 35 6 9 15 0 3 767 40 0 45 0 0 631 42 4 2 4 6 454 25 0 8 8 16 517 10 7 2 655 104 113 5 10 0 109...

Страница 76: ...inH2o Ext Static Air Cooling Mode ATF 55 HACW P 1T R410a 60 Hz Outdoor Unit Electrical Cooling Data Indoor Unit Air Temp Condensing Temp Rejection Compressor Current Input Power EAT Evaporating Temp A...

Страница 77: ...5 0 22 1 3 303 40 0 44 7 0 757 42 2 2 2 7 038 19 5 5 15 529 15 4 3 616 104 113 12 0 108 6 4 6 27 667 2 24 6 9 15 0 4 550 40 0 45 0 0 757 42 6 2 6 8 106 25 0 8 8 20 528 14 7 3 465 104 113 5 12 0 109 4...

Страница 78: ...H2o Ext Static Air Cooling Mode ATF 65 HACW P 1T R410a 60 Hz Outdoor Unit Electrical Cooling Data Indoor Unit Air Temp Condensing Temp Rejection Compressor Current Input Power EAT Evaporating Temp Air...

Страница 79: ...0 22 1 3 912 40 0 44 7 0 883 42 3 2 3 8 389 19 5 5 18 780 18 5 4 277 104 113 14 0 108 7 4 7 33 069 2 27 6 9 15 0 5 502 40 0 45 0 0 883 42 6 2 6 9 689 25 0 8 8 24 038 17 9 4 150 104 113 5 14 0 109 4 5...

Страница 80: ...inH2o Ext Static Air Cooling Mode ATF 75 HACW P 1T R410a 60 Hz Outdoor Unit Electrical Cooling Data Indoor Unit Air Temp Condensing Temp Rejection Compressor Current Input Power EAT Evaporating Temp A...

Страница 81: ...0 22 1 4 258 40 0 44 7 1 009 42 2 2 2 9 119 19 5 5 20 957 21 7 4 888 104 113 16 0 108 7 4 7 37 265 2 23 6 9 15 0 6 140 40 0 45 0 1 009 42 6 2 6 10 919 25 0 8 8 28 124 20 5 4 668 104 113 5 16 0 109 5 5...

Страница 82: ...13 9 17 4 30 10 7 7 29 2 36 5 40 8 5 3 25 3 31 6 40 8 7 19 5 24 3 30 10 10 10 41 7 52 1 60 6 7 5 36 1 45 1 50 6 10 27 8 34 7 40 8 15 15 62 5 78 1 80 4 11 3 54 2 67 7 80 4 15 41 7 52 1 60 6 20 20 83 3...

Страница 83: ...50 1450 448 684 1000 472 1063 502 1125 531 1188 561 65 1550 732 1250 1750 590 826 1240 585 1318 622 1395 658 1473 695 75 1700 802 1300 1950 614 920 1360 642 1445 682 1530 722 1615 762 TABLE 38 Airflow...

Страница 84: ...Page 84 002000MAN 01 1 Jun 2018 Wiring Diagram 208 230 1 60...

Страница 85: ...1 Jun 2018 Page 85 002000MAN 01 Electrical Box Layout 208 230 1 60...

Страница 86: ...Page 86 002000MAN 01 1 Jun 2018 Wiring Diagram 208 3 60...

Страница 87: ...1 Jun 2018 Page 87 002000MAN 01 Electrical Box Layout 208 3 60...

Страница 88: ...Page 88 002000MAN 01 1 Jun 2018 Wiring Diagram 460 3 60...

Страница 89: ...1 Jun 2018 Page 89 002000MAN 01 Electrical Box Layout 460 3 60...

Страница 90: ...Page 90 002000MAN 01 1 Jun 2018 ACE 45 55 Wiring Diagram ACE 65 75 Wiring Diagram...

Страница 91: ...1 Jun 2018 Page 91 002000MAN 01...

Страница 92: ...Page 92 002000MAN 01 1 Jun 2018...

Страница 93: ...1 Jun 2018 Page 93 002000MAN 01...

Страница 94: ...Page 94 002000MAN 01 1 Jun 2018 Dimensions ATF 45 Left Return INDOOR UNIT OUTDOOR UNIT ACE 45...

Страница 95: ...1 Jun 2018 Page 95 002000MAN 01 INDOOR UNIT OUTDOOR UNIT ACE 45 Dimensions ATF 45 Right Return...

Страница 96: ...Page 96 002000MAN 01 1 Jun 2018 INDOOR UNIT OUTDOOR UNIT ACE 55 Dimensions ATF 55 Left Return...

Страница 97: ...1 Jun 2018 Page 97 002000MAN 01 INDOOR UNIT OUTDOOR UNIT ACE 55 Dimensions ATF 55 Right Return...

Страница 98: ...Page 98 002000MAN 01 1 Jun 2018 INDOOR UNIT OUTDOOR UNIT ACE 65 75 Dimensions ATF 65 75 Left Return Note ACE 65 may be a 1 fan version of that shown here...

Страница 99: ...1 Jun 2018 Page 99 002000MAN 01 INDOOR UNIT Dimensions ATF 65 75 Right Return OUTDOOR UNIT ACE 65 75 Note ACE 65 may be a 1 fan version of that shown here...

Страница 100: ...Page 100 002000MAN 01 1 Jun 2018 ACE 65 75 ACE 45 55...

Страница 101: ...on Connector High Pressure1 Fault Indicator Low Pressure1 Sensor Connector Temperature Connectors INDOOR OUTDOOR IN OUT IN OUT Short Circuit Protectors 24VAC Power Indicator USB Connector 5VCD 12VDC 2...

Страница 102: ...or Loop IN Mounted to pipe inside unit I_OUT Indoor Loop OUT Mounted to pipe inside unit O_IN Outdoor Loop IN Unused O_OUT Outdoor Loop OUT Unused TABLE A2 Control Board Connector Descriptions Left Si...

Страница 103: ...Analog In Channel 5 Optional type 3 7 10k hot tank temperature sensor for HTS CTS Setpoint Control AI_4 Analog In Channel 4 0 to 5VDC or 4 20mA user settable with board jumper AI_3 Analog In Channel 3...

Страница 104: ...ge 1 C Plenum Heat Common Common terminal for air plenum heater dry contacts AR Airflow Reductions Digital input to reduce airflow for zoning applications 24VAC Power Power to external dry contact for...

Страница 105: ...In the next window click on Install Drivers 7 You will see a message indicating the driver was installed successfully Proceed to the PC App Installation The first step in connecting a Windows laptop...

Страница 106: ...Download Software page to install the missing items Then go back to step 5 7 The PC App will open when it is finished installing You are now ready to connect a USB cord between the laptop com puter an...

Страница 107: ...rmware V2 54 2 Unzip the file in the created folder There will be three files The firmware file MGT_GEN2_V254 production hex The programmer PIC32UBL exe Instruction sheet USB Bootloader Instructions V...

Страница 108: ...itself The messages should read as follows 18 Go back to the PC APP and click on the Connect button Verify that the firmware version has been updated Perform any configuration needed IMPORTANT NOTE u...

Страница 109: ...ex The programmer PIC32UBL exe 3 Connect a USB cable to the control board 4 Turn the power off to the unit 5 Remove one of the black pin jumpers from just below the USB connector on the board and plac...

Страница 110: ...it to Maritime Geothermal Ltd within 21 days of installation of the unit 3 It is the responsibility of the building or general contractor to supply temporary heat to the structure prior to occupancy T...

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