Maritime Geothermal ACE-45 Installation And Service Manual Download

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12-Feb-2019

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001970MAN-03

Maritime Geothermal Ltd.

P.O. Box 2555, 170 Plantation Road

Petitcodiac, NB E4Z 6H4

(506) 756-8135

ATW-Series

Reversing Air to Water Heat Pump

Two-Stage R410a

Model Sizes 25-75

[email protected]

www.nordicghp.com

001970MAN-03

ECO 000270 12-Feb-2019

Installation and Service Manual

Summary of Contents for ACE-45

Page 1: ...d P O Box 2555 170 Plantation Road Petitcodiac NB E4Z 6H4 506 756 8135 ATW Series Reversing Air to Water Heat Pump Two Stage R410a Model Sizes 25 75 info nordicghp com www nordicghp com 001970MAN 03 E...

Page 2: ...NNECTED Electrical shock can cause serious personal injury or death WARNING Heat pump systems contain refrigerant under high pressure and as such can be hazardous to work on Only qualified service per...

Page 3: ...n this table T Maritime Geothermal Ltd has a continuous improvement policy and reserves the right to modify specification data at any time without prior notice APPLICATION TABLE FIRMWARE AND PC APP Fi...

Page 4: ...System 28 001983CDG Typical ATW Line Set Connections 29 Operation 30 1 BACnet Control 30 2 Signals Hardwired Control 30 3 Setpoint Control 30 Setpoint Control Method 1 Indoor Loop ICR One Tank 30 Typi...

Page 5: ...Control Board Connector Descriptions Top 93 Table A2 Control Board Connector Descriptions Left Side 93 Table A3 Control Board Connector Descriptions Bottom 94 Table A4 Control Board Connector Descrip...

Page 6: ...door temperature is above 34 F 1 C the outdoor unit fan starts and stops when the heat pump starts and stops If the temperature is below 34 F 1 C the outdoor fan will re main on at a very slow speed w...

Page 7: ...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 outdoor temperatures...

Page 8: ...OR ZONE CONTROLLER ZONE SUPPLY RETURN HEADERS 1 COPPER PIPE FITTINGS PIPE FITTINGS TO ZONES EXPANSION TANK 2 STYROFOAM INSUL IF PAD NOT PURCHASED Unpacking the Unit When the 2 piece heat pump reaches...

Page 9: ...a concrete pad This is not recommended since in this case constant and ongoing care must be taken to ensure re frozen condensate does not build up under unit 2 The unit can be mounted on angle bracke...

Page 10: ...Page 10 001970MAN 03 12 Feb 2019 Average Maximum Snow Depth Canada 1979 1997 Source Natural Resources Canada...

Page 11: ...he power supply for the ACE unit is 208 to 277VAC 50 60Hz The ATW and ACE units have matching terminal strips for these connections Use a two conductor minimum 14ga outdoor rat ed cable for this conne...

Page 12: ...demand the tank will be repeatedly heated and cooled resulting in high power usage TABLE 10 Setpoint Control Aux Connections Signal Description CA 24VAC common ground 1A Hydronic Auxiliary hot D1 Hyd...

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Page 19: ...ank setup the final tank should be set to 140 F 60 C which is required by most codes The pre heat tank does not require electric elements This setup takes full advantage of the desuperheater as it is...

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Page 27: ...ring all silver soldering procedures so 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 th...

Page 28: ...ith 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 and install all access panels e...

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Page 30: ...e are provided via external dry contacts most often from a 2 stage aquastat or aquastats available as accessories See Wiring section The heat pump s internal control logic will not be used except to l...

Page 31: ...r to previous table When disa bled the two compressor stages and stage 3 auxiliary operate normally and shut off at their actual setpoints When enabled the heat pump will shut off the compressor at it...

Page 32: ...d heating load falls the heating mode buffer tank temperature will be de creased and a higher seasonal efficiency will result RED Heating BLUE Cooling Click to enable Outdoor Reset or use LCD Actual S...

Page 33: ...ontrol requirement To prevent the compressor from starting when the power is first turned on the system is DISABLED from factory The LCD display will show SYSTEM DISABLED To enable the system use eith...

Page 34: ...ermistors along with 10K 1 or better resistors must be connected to the control board Connect the Hot Tank sensor to the AI_5 input and the Cold Tank sensor to the AI_4 input as shown below and on the...

Page 35: ...ement File Save Saves the current page arrangement under the current name File Save As Save the current page arrangement under a new name File Exit Exits the PC Application Windows Menu This menu is u...

Page 36: ...frost History window also from menu View Defrost History Clear the defrost history log Refresh button reloads the defrost log Number of defrosts since history was last erased Defrost history log Compr...

Page 37: ...rm will be ignored for the number of seconds that Low Pressure Ignore is set to after which the low pressure alarm will be re enabled This allows a dip in suction pressure below the cutout point durin...

Page 38: ...m that occurs while the PC APP is connected to the control board will appear here The alarm type and a time stamp will be shown The alarms list will be erased when the PC APP is disconnected from the...

Page 39: ...the power disconnect and reconnect the cable between the LCD display board and the control board then turn the power back on again If the fault persists then there is most likely a hardware problem an...

Page 40: ...r individu al settings 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 v...

Page 41: ...arge cooling defrost pressure vs outdoor temperature Indoor IN OUT temperatures and delta T Discharge pressure vs tank temperature Hot and cold tank temperatures for systems using HTS CTS method with...

Page 42: ...le click to enable Firmware update see Appendix Green when pa rameters have been updated red during the update Firmware revision can also be seen on the LCD during power up Model Configu ration sectio...

Page 43: ...educe Time is the number of hours after which the alarm count is reduced by 1 if no other alarm occurred within the timeframe The number of minutes before the unit can start again after a normal shutd...

Page 44: ...reset will default the system to a two stage ATW Series Size 65 with Signals as the control source Calibrations alarm delays analog configurations compressor statistics and Setpoint Control values wil...

Page 45: ...ested to leave the of LOGS at 25 until it is shown that the start date selected is suitable Loads the of LOGS beginning from the earliest date Loads the of LOGS beginning from the se lected date Erase...

Page 46: ...change a parameter value type in the new value and press ENTER Clicking on menu item Tools Parameters will display this warning Click on YES to open the parameters page Type in the new value and pres...

Page 47: ...Main Menu level ENTER From Main ENTER First Press ENTER Second Press ENTER Third Press Description Setpoint Control only if using Setpoint Control Setpoints Heating Stage 1 Setpoint Stage 1 stops whe...

Page 48: ...HTS CTS Use external temperature sensors OD Fan Reduction Reduction Outdoor fan speed reduction in Number of Tanks only if using Setpoint control with HTS CTS One Tank One tank for heating cooling fu...

Page 49: ...splay menus The following tables provide a list of 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...

Page 50: ...C N A O_OUT AI22 Present Value degF degC N A I_IN AI23 Present Value degF degC Indoor IN temperature I_OUT AI24 Present Value degF degC Indoor OUT temperature Data Type Analog Value PWM_IN AV0 Present...

Page 51: ...D BIT DECIMAL VALUE Description Permanent Alarms 1 AV6 Bit description is given below Present Value 0 1 Master permanent alarm occurs when any alarm occurs 1 3 Low pressure heating mode alarm suction...

Page 52: ...A O_OUT Analog Input AI22 N A I_IN Analog Input AI23 Indoor IN temperature sensor faulty or disconnected I_OUT Analog Input AI24 Name ID BIT DECIMAL VALUE Description Board Faults AV8 Bit description...

Page 53: ...Further purging may be required after the system has been operating for a while 3 Verify that the loop contains the proper mix of antifreeze if used for the intended application If applicable record...

Page 54: ...ndoor flow if available 7 Outdoor air temperature 8 Compressor L1 C current black wire place meter between electrical box and compressor 4 Adjust the control setpoints to the desired buffer tank tempe...

Page 55: ...ly fastened Circuit breaker or fuse size and wire gauge for heat pump A Ga Circulator pump voltages Indoor 1 Indoor 2 V V V Low voltage connections are correct and securely fastened STARTUP DATA Prepa...

Page 56: ...ge cart and dispose of the solution RYDLYME is non toxic and biodegradable and as such can be poured down a drain Clean the purge cart thoroughly Depending on the plumbing there should be either union...

Page 57: ...aquastat but aq uastat has no display Replace aquastat No display on aquastat Signals control method only The following steps are for troubleshooting the heat pump If the problem is with the domestic...

Page 58: ...ctor failure Requires current sensor accessory Check contactor if compres sor is staying on when it should be off Go to Com pressor section if compressor is not on when it should be Multiple Defrosts...

Page 59: ...et 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 v...

Page 60: ...off for ex tended period Ensure Indoor OUT temperature is above the low limit indicated in the Model Specific Information sec tion Reduce flow temporarily until In door Out temperature has risen suff...

Page 61: ...OPERATION TROUBLESHOOTING HEATING MODE Fault Possible Cause Verification Recommended Action Compressor frosting up See Low Suction Pressure in this section EEV frosting up EEV stuck almost closed or p...

Page 62: ...s 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 discharge...

Page 63: ...nd retesting If this does not correct the problem re place the control board Fan PWM Signal connec tions Use manual mode of PC APP to set the outdoor fan to 50 Using a multi meter set to VDC measure P...

Page 64: ...ure i e the system will not equalize since EEV s are closed when there is no demand If the system does equalize it is likely that the EEV is not working and is partially open Manually set the EEV to 2...

Page 65: ...wer to pump Check water lines for obstructions Remove obstruction in water lines Acid treat the domestic hot water coil Faulty DHW cutout failed open Check contact operation Should close at 120 F and...

Page 66: ...ressure and connect the vacuum pump to the charging manifold Start the vacuum pump and open the charging manifold valves Vacuum until the vacuum gauge remains at less than 500 microns for at least 1 m...

Page 67: ...city Table 25 Shipping Information Outdoor Unit WEIGHT DIMENSIONS in cm lb kg L W H ATW 25 230 104 36 91 70 178 45 114 ATW 45 230 104 36 91 70 178 45 114 ATW 55 230 104 36 91 70 178 45 114 ATW 65 295...

Page 68: ...3 6 0 38 1 6 11 1 7 12 2 0 14 2 6 18 7 0 44 1 9 13 2 1 14 2 5 17 3 3 23 8 0 50 2 6 18 2 8 19 3 0 21 4 0 27 9 0 57 3 2 22 3 5 24 3 8 26 5 0 34 10 0 63 3 8 26 4 0 28 4 7 32 6 2 43 11 0 69 4 3 30 4 6 32...

Page 69: ...0 7 6 53 15 0 95 5 5 38 5 7 39 6 5 45 8 5 59 16 1 01 6 3 43 6 5 45 7 3 50 9 6 66 ATW 65 12 0 76 3 6 25 3 9 27 4 6 32 6 0 42 6 0 38 0 6 4 1 0 7 4 8 0 9 6 2 1 2 8 2 7 0 44 0 8 5 5 0 9 6 2 1 0 6 9 1 3 9...

Page 70: ...ard Capacity Ratings HEATING METRIC Model Loop Flow L s P kPa LLT Outdoor Air Temp Input Energy W Capacity W COPH ATW 25 0 50 21 41 C 8 C 1690 6 640 3 93 8 C 1860 4 350 2 35 49 C 8 C 2000 6 370 3 19 8...

Page 71: ...F 34 F 19 000 6 3 1650 99 F 109 F 6 F 24 400 4 34 65 F 43 F 21 500 6 1 1580 98 F 109 F 7 F 26 700 4 94 5 F 16 F 8 0 120 F 5 F 8 F 15 F 1 F 6 660 8 8 2240 117 F 125 F 4 F 14 100 1 85 25 F 9 F 9 470 8 4...

Page 72: ...34 F 28 800 9 1 2270 98 F 109 F 7 F 36 400 4 70 65 F 43 F 32 700 8 8 2180 97 F 108 F 8 F 39 900 5 38 5 F 16 F 10 120 F 5 F 8 F 15 F 1 F 10 900 13 0 3180 116 F 124 F 4 F 21 300 1 98 25 F 9 F 14 900 12...

Page 73: ...11 55 F 34 F 37 500 12 5 2960 97 F 108 F 8 F 47 500 4 69 65 F 43 F 42 600 12 2 2870 96 F 108 F 9 F 52 200 5 34 5 F 16 F 12 120 F 5 F 8 F 15 F 1 F 13 300 17 6 4120 115 F 124 F 5 F 27 100 1 93 25 F 9 F...

Page 74: ...07 55 F 34 F 45 100 15 4 3570 97 F 108 F 8 F 56 900 4 68 65 F 43 F 52 300 15 2 3490 96 F 108 F 9 F 63 900 5 37 5 F 16 F 14 120 F 5 F 8 F 15 F 1 F 17 500 20 8 4830 115 F 124 F 5 F 32 800 2 05 25 F 9 F...

Page 75: ...09 55 F 34 F 51 700 17 5 3980 97 F 108 F 8 F 64 900 4 77 65 F 43 F 60 100 16 9 3820 96 F 108 F 9 F 72 800 5 58 5 F 16 F 120 F LLT is limited to 105 F at these outdoor temperatures 5 F 8 F 15 F 1 F 19...

Page 76: ...15 14 4 ATW 55 1 230 1 60 187 253 21 2 104 4 0 1 6 27 6 32 9 50 8 2 2 208 3 60 187 229 14 0 83 4 0 1 6 20 4 23 9 30 10 3 4 460 3 60 414 506 6 4 41 4 0 1 6 12 8 14 4 20 12 4 6 220 1 50 187 253 15 5 10...

Page 77: ...12 Feb 2019 Page 77 001970MAN 03 Wiring Diagram 208 230 1 60...

Page 78: ...Page 78 001970MAN 03 12 Feb 2019 Electrical Box Layout 208 230 1 60...

Page 79: ...12 Feb 2019 Page 79 001970MAN 03 Wiring Diagram 208 3 60...

Page 80: ...Page 80 001970MAN 03 12 Feb 2019 Electrical Box Layout 208 3 60...

Page 81: ...12 Feb 2019 Page 81 001970MAN 03 Wiring Diagram 460 3 60...

Page 82: ...Page 82 001970MAN 03 12 Feb 2019 Electrical Box Layout 460 3 60...

Page 83: ...12 Feb 2019 Page 83 001970MAN 03 ACE 45 55 Wiring Diagram ACE 65 75 Wiring Diagram...

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Page 86: ...Page 86 001970MAN 03 12 Feb 2019 Dimensions ATW 25 45...

Page 87: ...12 Feb 2019 Page 87 001970MAN 03 Dimensions ATW 25 45...

Page 88: ...Page 88 001970MAN 03 12 Feb 2019 Dimensions ATW 55...

Page 89: ...12 Feb 2019 Page 89 001970MAN 03 Dimensions ATW 55...

Page 90: ...Page 90 001970MAN 03 12 Feb 2019 Dimensions ATW 65 75...

Page 91: ...12 Feb 2019 Page 91 001970MAN 03 Dimensions ATW 65 75...

Page 92: ...or Connector Temperature Connectors INDOOR OUTDOOR IN OUT IN OUT Short Circuit Protectors 24VAC Power Indicator USB Connector 5VCD 12VDC 24VDC power indicators Fault Indicator BACnet MS TP Connector P...

Page 93: ...to pipe inside unit O_IN Outdoor Loop IN Unused O_OUT Outdoor Loop OUT Unused TABLE A2 Control Board Connector Descriptions Left Side Name Description PWM_IN Signal for PWM IN Unused IN_SPARE Spare di...

Page 94: ...ure sensor for HTS CTS Setpoint Control AI_4 Analog In Channel 4 Optional type 3 7 10k cold tank temperature sensor for HTS CTS Setpoint Control AI_3 Analog In Channel 3 0 to 5VDC or 4 20mA user setta...

Page 95: ...astat used with Signals Hardwired control 2 Plenum Heat Stage2 Unused 1 Plenum Heat Stage1 Unused C Plenum Heat Common Unused AR Airflow Reductions Unused 24VAC Power Accessory 24VAC power ODFLO Outdo...

Page 96: ...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...

Page 97: ...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...

Page 98: ...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...

Page 99: ...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...

Page 100: ...hex 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 pla...

Page 101: ...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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