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56

ARTC-SVX006A-EN

Table 11.

Interface panel diagnostic code key (continued)

ALARM

RESET

ACTION

Secondary 2 communication lost

Auto

Warning

Secondary 3 communication lost

Auto

Warning

Secondary 4 communication lost

Auto

Warning

Secondary 5 communication lost

Auto

Warning

Secondary 6 communication lost

Auto

Warning

Secondary 7 communication lost

Auto

Warning

Secondary 8 communication lost

Auto

Warning

Secondary 9 communication lost

Auto

Warning

Primary communication lost

Auto

Secondary Modules switch into Stand-alone Mode

BMS offline

Auto

Warning

System Chilled LWT too high

Auto

Warning

System Hot LWT too low

Auto

Warning

Condenser LWT too low

Auto

Warning

Evaporator LWT too high

Auto

Warning

Error in the number of retain memory writings

User

Warning

Error in retain memory writings

User

Warning

Wrong Primary rotation control parameters

Auto

Warning

Wrong temperature control parameters

Auto

Warning

Wrong local rotation control parameters

Auto

Warning

Circuit 1 Differential Pressure low

Auto

Warning

Circuit 2 Differential Pressure low

Auto

Warning

Incomplete Defrost Cycle

Auto

Warning

Incomplete Defrost Cycle Lockout

User

Locks out module

Defrost Ambient Temperature high

Auto

Warning

Compressor Diagnostic Codes

Compressors used in Trane air-to water heat pumps use
solid state protection and have PTC (Positive Temperature
Coefficient) internal sensors with an avalanching
resistance in the event of high temperatures. The sensors
are calibrated for proper motor protection.

KRIWAN Flash Codes

The KRIWAN flash code allows for a quick and easy status
display and troubleshooting.

The error code consists of a red and orange pulse
frequency. They are continually displayed after each other.
There is a 1.5 second pause before the red pulse
sequence. There is a 0.8 second pause between the red
and orange pulse sequences. The error code can be
determined from the number of pulsing flashes.

Heat Pump Troubleshooting

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Содержание Arctic Thermafit AXM

Страница 1: ...res specific knowledge and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precau...

Страница 2: ...at is used in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the appli...

Страница 3: ...t than these policies those regulations supersede these policies Non Trane personnel should always follow local regulations Copyright This document and the information in it are the property of Trane...

Страница 4: ...trol Wires 18 Heat Pump Module Main Power 18 Phase Monitor Installation 18 Power Interlock Switch 18 Module Control Wiring 18 Operating Principles 19 Minimum Fluid Volume and Avoidance of Short Loops...

Страница 5: ...lean Air Act 47 Inspection and Maintenance Schedule 47 Daily 47 Weekly 48 Monthly 48 Quarterly 49 Annually 50 Maintenance Tasks 50 Inspection Methods 50 Critical Cleaning Tasks 51 Compressor Tasks 52...

Страница 6: ...serial number for each module in the heat pump in the table below Heat Pump Reference Data Refer to the Trane nameplate on each module in the installed unit for the serial number and model number Tabl...

Страница 7: ...ent professional familiar with the materials of construction and operation of the equipment The heat pump modules arrive fully charged with refrigerant As required under Federal regulations installati...

Страница 8: ...between each plate The filler material forms a brazed joint at every contact point on the plates creating complex channels This allows fluid to come into close proximity of the cold refrigerant separ...

Страница 9: ...power is turned off at the power distribution panel Validate de energization using voltage meter 5 Inspect all electrical connections to ensure terminals are secure 6 Inspect all fuses and overload se...

Страница 10: ...ltage 2 _____________________ Voltage 3 ___________________ Check the box if there are any field supplied wiring junction boxes located between the heat pump and any remote panels Check the box if the...

Страница 11: ...k the box if all responsible installing contractors and sub contractors have been notified to have representatives available on site to provide technical support for the initial start up procedure Che...

Страница 12: ...stomer s responsibility to ensure that the necessary long term storage procedures have been completed and any deviations are reported to Trane immediately Long Term Storage Requirements Appropriate pr...

Страница 13: ...ctrical codes WARNING Electrical Shock Explosion or Arc Flash Hazard Failure to follow these instructions could result in death or serious injury Install the product in an appropriate electrical fire...

Страница 14: ...iciently flexible to prevent transmission of noise and vibration into the building If the desired location for the heat pump is confined by walls fences overhanging roof eaves or is located in a pit s...

Страница 15: ...l times Certain configurations of modules can be top heavy Move modules slowly with consideration for each module s center of gravity Rig lift and move by strapping and lifting using a properly config...

Страница 16: ...view the installation drawings to determine which is the first primary module Typically the primary module also has the power distribution panel attached to it Figure 3 Heat pump installation on mount...

Страница 17: ...continue for a minimum of six hours with frequent removal of the screen to capture residue or until the strainer is clean After detergent and chemical cleaning flush the water piping with fresh water...

Страница 18: ...fter initial startup If it fails to energize the LED glows red or blinks check the wiring of all three phases voltage and phase sequence If phase sequence is incorrect the LED flashes green red To cor...

Страница 19: ...ze the impact to heating capacity The defrost cycle must be considered when sizing the hydronic system volume to ensure heating supply capacity Minimum Fluid Volume and Avoidance of Short Loops Adequa...

Страница 20: ...that powers the individual electrical components Panel Mounted Disconnect Switch Some heat pump systems are optionally equipped with a panel mounted disconnect switch installed on the outside of the p...

Страница 21: ...vailable as an option 1 BACnet MS TP Connection through built in BMS2 port 2 BACnet IP BACnet router is used 3 Modbus RTU Connection through built in BMS2 port 4 Modbus IP Modbus router is used 5 LonW...

Страница 22: ...epair To prevent arcing or surges of electrical current do not use wires or cables to jump components or bypass the manufacturer s safety systems Password Protection There are three levels of access t...

Страница 23: ...quences of keys and buttons are pressed by the operator See following figure Basic operator tasks are described in the following sequence of illustrations that comprise a controller tutorial Figure 9...

Страница 24: ...ructure Key interface screens are organized according to system primary module and secondary modules functions See Figure 10 p 24 Figure 10 Interface navigation scheme Home Screen Features Figure 11 H...

Страница 25: ...user name and password have to be entered Log Out unhidden for admin and tech users only It logs out from admin or tech user to a default user which is user Figure 12 User logging screen 3 Module Lay...

Страница 26: ...n for each module These buttons provide access to all heat pump modules screens individually The number on the Mx button stands for the module number in the heat pump Only modules that communicate dir...

Страница 27: ...so only Active alarms will remain on the list Select This column indicates if the alarm is selected or unselected for acknowledgment or resetting Action This column gives alarm details if applicable N...

Страница 28: ...re 16 p 28 History alarms list can be sorted by any column in ascending or descending order by tapping corresponding column header Triangle that appears next to the header indicates which column is be...

Страница 29: ...alarm records before filter applied High Pressure switch alarm records after filter applied Any alarm events pertaining to user action acknowledgement and reset have been filtered off the list Combini...

Страница 30: ...ts as a primary module Primary module performs temperature control for either heating or cooling loads It also acts as a Supervisor when communicating with secondary modules and defines how many modul...

Страница 31: ...urpose Overview Circuits Refrigerant temperatures pressures are displayed suction pressure discharge pressure suction temperature suction super heat temperature Liq Line Solenoid Status of the solenoi...

Страница 32: ...ive buttons The ANALOG button displays the analog screen The DIGITAL button displays the digital screen Analog Inputs Analog input AI data includes these parameters AI1 This input indicates suction pr...

Страница 33: ...igital input for this switch indicates open a power supply failure has been detected If common power supply protection module is used for the heat pump its failure will affect each module In such a ca...

Страница 34: ...eeding normal range threshold faulty state DO1 DO2 DO6 Fans 1 2 3 This digital output is used to turn fans of Fan Bank 2 on and off DO3 Liquid Line Bypass solenoid Valve Circuit 2 DO4 Liq Line Solenoi...

Страница 35: ...kout tagout procedures to ensure the power can not be inadvertently energized Verify that no power is present with a voltmeter Important This start up procedure is not to be used for the first time in...

Страница 36: ...dness corrosion Water with high hardness can cause corrosion problems due to its high ion content Ca 2 Mg 2 Fe 2 which also means a high electrical conductivity and a high total dissolved solid TDS Fo...

Страница 37: ...conditions Burst protection is needed to protect piping and other enclosed systems when they are inactive as they could rupture due to expansion during cold weather or low refrigerant pressure Freeze...

Страница 38: ...size A heat pump s optimum glycol concentration is modified by these considerations as reflected in Table 7 p 37 These capacity correction factors are the best informed estimates for heat pump with c...

Страница 39: ...t points clear alarms and perform detailed set up of the microprocessor controllers Heat Pump Control The operator uses three different types of controls and indicators to monitor and maintain the des...

Страница 40: ...c components beyond repair To prevent arcing or surges of electrical current do not use wires or cables to jump components or bypass the manufacturer s safety systems Module Electrical and Control Pan...

Страница 41: ...or bulb should be located at the 4 o clock or 8 o clock positions on the pipe for the most accurate pressure measurement Ensure that the closed cell insulation covers the thermal expansion valve sensi...

Страница 42: ...anger water glycol mixture The set points are typically just below the freezing point For R410A refrigerant and using water the pressure is set at a 90 psi cut out corresponding to 50 F 10 C and a 105...

Страница 43: ...or flow circulation 9 Lead Module is rotated through Air to Water Heat Pump Bank based on time period or based on the chiller demand Both options can be enabled disabled individually When Time Rotatio...

Страница 44: ...is allowed to run in Defrost Mode at the same time compared against number of modules running in heating mode Besides unbalanced heating capacity can be compensated by running additional modules in H...

Страница 45: ...conditions Fluid water Outlet fluid temperature 44 F 7 C Fouling factor 0 00010 h ft2 F Btu Design ambient temperature 95 F 37 3 C Inlet fluid temperature 54 F 12 C Elevation 0 ft Cooling performance...

Страница 46: ...Power at Full Load 73 97 kW Chiller MCA 68 0 A Compressors 55 3 A Chiller MOCP 100 0 A Fans 4 5 A Electrical performance per power supply Number of power supplies 1 Chiller FLA 119 7 A Modules per pow...

Страница 47: ...hecklist which includes small checks which can significantly extend service life Other considerations such as weather and equipment age are taken into account maintenance and equipment replacement is...

Страница 48: ...cord compressor amperage draw and voltage Annually Compare water glycol flow against design specifications Annually Weekly Weekly inspection is a continuation and elaboration of daily best practice In...

Страница 49: ...rant charge refrigeration obstruction or valve closed This can cause extensive damage to a compressor 8 Check the refrigeration liquid line sight glass for persistent bubbles flashing Note Bubbles in...

Страница 50: ...ared fittings refrigeration gauges compressor connections braze joints pressure switches and access ports on Schrader valves WARNING Refrigerant under High Pressure Failure to follow instructions belo...

Страница 51: ...he roll grooved blind end cap or service cap on the end of the strainer housing Utilize a short section of hose to connect to the valve on the end cap to relieve pressure and capture fluid Dispose of...

Страница 52: ...ning cleaning compounds Compressor Tasks The AXM air to water heat pump has been designed for ease of maintenance access When properly positioned within a machine room or space Copeland compressors ca...

Страница 53: ...ompressor by removing the lockout tagout in the power distribution panel 10 Energize the new compressor allowing it to run as long as possible 11 Observe and document the operating pressures of the ne...

Страница 54: ...Shuts down Circuit 2 c pCOe UI9 sensor failure Auto Warning c pCOe UI10 sensor failure Auto Warning c pCOe Offline Alarm Auto Shuts down Circuit 2 c pCOe wrong config Alarm Auto Warning UI1 sensor fa...

Страница 55: ...2 Failure User Shuts down Fan 2 Ebm Papst Fan 2 Offline Auto Shuts down Fan 2 Ebm Papst Fan 3 Warning Auto Warning Ebm Papst Fan 3 Failure User Shuts down Fan 3 Ebm Papst Fan 3 Offline Auto Shuts dow...

Страница 56: ...ng temperature control parameters Auto Warning Wrong local rotation control parameters Auto Warning Circuit 1 Differential Pressure low Auto Warning Circuit 2 Differential Pressure low Auto Warning In...

Страница 57: ...o de energizing Glowing red Output has been de energized upon fault detection Flashing red and green Phase reversal is detected No power to phase monitor If the phase monitor fails to energize the LED...

Страница 58: ...for possible overloading Overloads are auto reset Monitor to assure the overload does not re occur Defective contactor or coil Determine type and cause Correct fault before resetting safety 3 Symptom...

Страница 59: ...ow rate through heat exchanger Restricted water glycol line Clean strainers Check manual and electronic valves Water glycol mixture contaminated Intensive cleanup effort needed to identify source of c...

Страница 60: ...m volume needs to increase Check stage band control settings 10 Symptom Low chilled water temperature Possible Causes Potential Solutions Temperature controllers set too low Reset temperature setpoint...

Страница 61: ...XV TXV Check EXV TXV functions Check EXV TXV settings 15 Symptom Thermal expansion valve superheat too low Possible Causes Potential Solutions Sensing bulb not properly located Check if secured to pip...

Страница 62: ...6 38 6 RLA 1 4 460V 3PH 60 Hz 15T 15HP REFRIGERATION COMPRESSOR M2 174 LRA 2A FU1 MS1 CRANKCASE HEATER 93VA 460V REFRIG COMP M1 HTR1 2A FU2 MS1 ACCUMULATOR HEATER 93VA 460V REFRIG COMP M1 HTR2 2A FU3...

Страница 63: ...RIG CKT 2 RV2 REVERSING VALVE NO 24VAC TE3 NTC 10k SYSTEM CHILLED WATER IN TEMPERATURE TE4 NTC 10k SYSTEM CHILLED WATER OUT TEMPERATURE NTC NTC 0V TSH1 0V 4 20mA HEATING CYCLE EXV1A PRESSURE REFRIG CK...

Страница 64: ...al Flow AXM heat pump uses two independent refrigeration circuits per module using vapor injected scroll compressors See below figure Figure 26 Product schematic cooling mode Figure 27 Product schemat...

Страница 65: ...Dly Delay DP Differential Pressure ECM Electrically Commutated Motor EER Energy Efficiency Rating EMC Electromagnetic Compatibility Table 14 Acronyms and abbreviations continued Item Expansion EMI El...

Страница 66: ...inch PumpDown Pump Down PumpMod Pump Module PWM Pulse Width Modulation Pwrup Stg Up Power Up Stage Up REFRIG Refrigeration RemOff Remote Off RMA Returned Merchandise Authorization Table 14 Acronyms a...

Страница 67: ...mplete All heat pump modules are installed with minimum clearances available from all sides Refrigeration gauges are indicating equal pressures Chilled water lines from heat pump to customer s equipme...

Страница 68: ...echnician Payment for an aborted startup will be forfeited Rescheduled initial startups are subject to any additional costs that may have been incurred by the technician An approved purchase order or...

Страница 69: ...ARTC SVX006A EN 69 Notes...

Страница 70: ...70 ARTC SVX006A EN Notes...

Страница 71: ...ARTC SVX006A EN 71 Notes...

Страница 72: ...applied solutions to meet individual customer needs from large medium to smaller scale systems For more information please visit www arcticchillergroup com Trane has a policy of continuous product an...

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