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Only qualified personnel should install, start-up, and 
service this equipment. When working on this 
equipment, observe precautions in this manual as 
well as tags, stickers, and labels on the equipment. 
 

 

WARNING: Any use or misuse of this equipment 
outside of the design intent may cause injury or harm. 

 

 

WARNING: Vent all refrigerant relief valves in 
accordance to ANSI/ASHRAE Standard 15, Safety Code 
for Mechanical Refrigeration. Locate this equipment in 
a well-ventilated area. Inhalation of refrigerant can be 
hazardous to your health and the accumulation of 
refrigerant within an enclosed space can displace 
oxygen and cause suffocation. 

 

 

WARNING: This equipment contains hazardous 
voltages that can cause severe injury or death. 

 

 

WARNING: This equipment contains refrigerant under 
pressure. Accidental release of refrigerant under 
pressure can cause personal injury and or property 
damage. 

 

 

WARNING: This equipment may contain fan blades or 
other sharp edges. Make sure all fan guards and other 
protective shields are securely in place. 

 

 

WARNING: The exposed surfaces of motors, refrigerant 
piping, and other fluid circuit components can be very 
hot and can cause burns if touched with unprotected 
hands. 

 

 

CAUTION: Disconnect and lock out incoming power 
before installing, servicing, or maintaining the 
equipment. Connecting power to the main terminal 
block energizes the entire electric circuitry of the unit. 
Shut off the electric power at the main disconnect 
before opening access panels for repair or 
maintenance. 

 

 

CAUTION: Wear eye protection when installing, 
maintaining, or repairing the equipment to protect 
against any sparks, debris, or fluid leaks. 

 

 

CAUTION: The equipment will exceed 70 dBA sound 
pressure at 1 meter distance and 1 meter elevation 
when operating. Wear ear protection as required for 
personal comfort when operating or working in close 
proximity to the chiller. 

 

 

CAUTION: Wear protective gloves when installing, 
maintaining, or repairing the equipment to protect 
against any sparks, debris, or fluid leaks. 

 

Pre-Installation 

Receiving Inspection 

When the unit arrives, verify the information on the 
unit nameplate agrees with the order 
acknowledgement and shipping papers. Inspect the 
equipment for any visible damage and verify all 
items shown on the bill of lading are present. If 
damage is evident, document it on the delivery 
receipt by clearly marking any item with damage as 
“unit damage” and notify the carrier. In addition, 
notify our Customer Service Department and they 
will provide assistance with preparing and filing 
freight damage claims, including arranging for an 
estimate on repair costs; however, filing the shipping 
damage claim is the responsibility of the receiving 
party. Do not install damaged equipment without 
getting the equipment repaired. 
 
Shipping damage is the responsibility of the carrier. 
To protect against possible loss due to damage 
incurred during shipping and to expedite payment 
for damages, it is important to follow proper 
procedures and keep records. Photographs of 
damaged equipment are excellent documentation 
for your records. 
 
Start unpacking the unit, inspect for concealed 
damage, and take photos of any damage found. 
Once received, equipment owners have the 
responsibility to provide reasonable evidence that 
the damage did not occur after delivery. Photos of 
the equipment damage while the equipment is still 
partially packed will help in this regard. Refrigerant 
lines can be susceptible to damage in transit. Check 
for broken lines, oil leaks, damaged controls, or any 
other major component torn loose from its 
mounting point. 
 
Record any signs of concealed damage and file a 
shipping damage claim immediately with the 
shipping company. Most carriers require concealed 
damages be reported within 15 days of receipt of 
the equipment. In addition, notify our Customer 
Service Department and they will provide assistance 
with preparing and filing freight damage claims, 
including arranging for an estimate on repair costs; 
however, filing the shipping damage claim is the 
responsibility of the receiving party. 
 

Содержание Accuchiller MX Series

Страница 1: ......

Страница 2: ......

Страница 3: ...rmining Equivalent Line Length 6 Table 1 Equivalent Lengths of Elbows 7 Liquid Line Sizing 7 Table 2 Liquid Line Size Circuit inches OD 7 Discharge Hot Gas Line Sizing 7 Figure 4 Vertical Riser Traps...

Страница 4: ...nputs Outputs Screens 16 Figure 20 Digital Inputs Screen 16 Figure 21 Digital Outputs Screen 16 Figure 22 Analog Inputs Screen 16 Figure 23 Analog Outputs Screen 17 Figure 24 RTD Inputs Screen 17 Menu...

Страница 5: ...Restore Factory Settings 23 Figure 36 Factory Settings Restored 23 Menu 2 Remote Mode 23 Menu 2 Backup Chiller 23 Figure 37 Backup Chiller Screen 23 Menu 2 Modbus BAS 23 Figure 38 Modbus Setup Screen...

Страница 6: ...Checking Compressor Oil Level 29 Cleaning the Operator Interface 29 General Troubleshooting 29 Preventive Maintenance Checklist 32 Drawings 32...

Страница 7: ...erant for heat transfer purposes This chemical is sealed and tested in a pressurized system containing ASME coded vessels however a system failure will release it Refrigerant gas can cause toxic fumes...

Страница 8: ...aining or repairing the equipment to protect against any sparks debris or fluid leaks Pre Installation Receiving Inspection When the unit arrives verify the information on the unit nameplate agrees wi...

Страница 9: ...d impact loading caused by sudden jerking when lifting or lowering the chiller Use pads where abrasive surface contact may occur Process Fluid Piping Proper insulation of chilled process fluid piping...

Страница 10: ...meter elevation when operating Wear ear protection as required for personal comfort when operating or working in close proximity to the chiller CAUTION Wear protective gloves when installing maintaini...

Страница 11: ...ide lifting brackets Use spreader bars when lifting to apply the lifting force vertically Under no circumstances use the coil headers or return bends in the lifting or moving of the condenser Mounting...

Страница 12: ...er than 100 actual feet without a minimum of 2 efficiency decrease 4 To form a proper liquid seal at the condenser immediately drop at least 15 inches down from the liquid outlet before routing the pi...

Страница 13: ...ght from the condenser liquid line connection The liquid line does not require pitching Install a pressure tap valve at the condenser to facilitate measuring pressure for service Liquid lines do not t...

Страница 14: ...Systems Designed for 40 F to 80 F Set Point 50 Ton 75 Ton 100 Ton 125 Ton 50 Ton 75 Ton 100 Ton 125 Ton 25 A 1 3 8 1 5 8 1 5 8 1 5 8 1 3 8 1 5 8 1 5 8 2 1 8 B 1 5 8 2 1 8 2 1 8 2 5 8 1 5 8 2 1 8 2 1...

Страница 15: ...leg is not within the specified range notify the supplier and correct before operating the unit Voltage imbalance must not exceed two percent Excessive voltage imbalance between the phases of a three...

Страница 16: ...begins once a compressor starts and will not let that compressor restart until the recycle timer has timed out When the start button is pressed any pumps controlled by the chiller will turn on any con...

Страница 17: ...s screen displays for 5 seconds after the Programmable Logic Controller PLC and Human Machine Interface HMI establish communications The control system version is located on this start up screen Figur...

Страница 18: ...is button displays the set point and process temperatures in a large font Figure 9 Alarms Button A listing of active and prior alarm history Figure 11 Figure 12 Figure 13 Detail Provide additional cir...

Страница 19: ...Figure 25 EXV Control Electric Expansion Valve Setup Figure 26 Discharge Control Water Regulating Valve Setup Discharge Pressure Control Figure 27 Figure 28 Capacity Control This shows the compressor...

Страница 20: ...ion of the display will be blank All alarms must be resolved and reset using the RESET ALARM button Alarm Setup The Alarm Setup screen allows changes to alarm settings Figure 12 Alarm Setup Alarm Glyc...

Страница 21: ...Screen will display the Interlock Screen If the compressor is not starting the reason for the fault will clearly be visible on this screen Figure 16 Interlocks Touching the CRITICAL button opens the...

Страница 22: ...puts Outputs Inputs Outputs Screens The Inputs Outputs screens provide the status of all digital inputs digital outputs analog inputs and outputs When the PLC input LED is on the corresponding input o...

Страница 23: ...Value Mode Selection AUTO MODE The valve will always respond relative to the demand PID regardless of how many compressors are running MANUAL MODE The manual mode value percent will be the output to t...

Страница 24: ...eat The difference between the saturated suction temperature and the suction line temperature is the superheat The superheat is factory set for 10 F and should never exceed 15 F or go below 4 F Only a...

Страница 25: ...cription Default Value Mode In Auto Mode the valve adjusts to maintain optimum performance In manual mode it holds to the input valve AUTOMATIC Discharge Setpoint Discharge Setpoint Value 133 PSIG Low...

Страница 26: ...25 100 of full capacity Figure 29 Capacity Control Screen Table 12 Capacity Control Parameters Menu Item Description Default Value Automatic or Manual Mode In Auto Mode the control system adjusts the...

Страница 27: ...or Staging Screen Table 14 Compressor Staging Parameters Menu Item Description Default Value Stage Up Trigger This parameter in conjunction with the Stage Up Delay determines at what percent the next...

Страница 28: ...view Figure 34 Menu 2 Screen Table 16 Menu 2 Functions Function Description Screen Reference Defaults Provides the ability to restore the control system back to factory defaults in the case that an un...

Страница 29: ...rt stop When active the Remote Mode toggle will indicate Remote Start Stop Enabled and when not active it will indicate Remote Start Stop Disabled Menu 2 Backup Chiller If this feature has been enable...

Страница 30: ...ankcase heater Disconnect main power only when servicing the chiller The crankcase heater should remain on when the compressor is off to ensure liquid refrigerant does not accumulate in the compressor...

Страница 31: ...ecialist in the industry is involved Table 17 shows the list of water characteristics and quality limitations Table 17 Fill Water Chemistry Requirements Water Characteristic Quality Limitation Alkalin...

Страница 32: ...vital that the Freezestat is set properly Step 6 Turn On Control Power Turn on the control power by turning the control power switch to On The panel displays should now be illuminated Due to extreme...

Страница 33: ...that there are locations for voltage readings amperages etc for monitoring over time With this information maintenance personnel may be able to correct a potential problem before it causes any downtim...

Страница 34: ...se heater when the heater is on Once a Year Repeat items 1 through 17 land continue with the following 18 Check the condition of the chilled water for algae and particulate fouling Back flush the evap...

Страница 35: ...r for five seconds Incorrect three phase rotation Correct phasing of incoming power Loss of phase Check incoming power High motor temperature Check oil level superheat liquid injection High oil discha...

Страница 36: ...e High condenser water temperature MXW models only Maximum temperature is 105 F Condenser water regulating valve MXW models only Replace if faulty High condenser air temperature MXR models only Maximu...

Страница 37: ...apacity Check to make sure chiller is properly sized for process load Thermocouple Replace if faulty Microprocessor input card process sensor Replace if faulty Temperature values unsteady or out of ra...

Страница 38: ...2 Amps Compressor L3 Amps Refrigerant Superheat Refrigerant Subcooling Compressor Discharge Check Valve Compressor Crankcase Heater Evaporator PSID Condenser PSID Clean Condenser Clean Evaporator Oil...

Страница 39: ......

Страница 40: ...Sales Customer Service Parts Department 847 966 2260 info thermalcare com 847 966 2260 847 966 9358 fax 847 966 2636 847 966 8560 847 966 9358 fax www thermalcare com info thermalcare com service the...

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