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Summary of Contents for Multistack MS010XC
- Page 1 Modular Water-Cooled Chillers Installation, Operation, Maintenance MS010XC, MS015XC, MS020XC, MS030XC, MS040XC, MS050XC, MS070XC, MS085XC Standard and Total Access™ Modules...
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Page 2: Table Of Contents
To ensure all warranties and a successful installation, a Factory Authorized Technician is required to perform start-up of the Multistack Chiller. If start-up is to be performed directly by Multistack, a minimum of two weeks notice is required. Please call the Multistack Service Department at (608) 366-2400 to schedule. -
Page 3: Safety Information
: Danger of explosion. Refrigerant cylinders can explode causing serious injury and/or death if not handled and stored properly. WARNING : Only qualified, licensed electricians with proper personal protection equipment should wire Multistack chillers. Injury or death my result if not properly wired due to electric shock hazard WARNING : Danger of electrical shock. -
Page 4: Nameplate And Model Number Nomenclature
Unit Nameplate The chiller nameplate is located on the front of the control panel. Use the unit model number nomenclature to identify specific features and options of an Multistack chiller module. Model Number Nomenclature C or N -410A... -
Page 5: Chiller Arrangement And Components, Standard And Total Access™ Modules
Condenser Valve Total Access™ Modular Chiller Arrangement Multistack’s Total Access option makes maintenance and serviceability even easier by placing heat exchangers at the outside of the module frame. Manual i solation valves are factory-installed (Total Access units only) between the heat exchangers and water supply mains for heat exchanger isolation and... - Page 6 Master Controller Four temperature sensors and sensor wells are supplied by Multistack: entering chilled water, leaving chilled water, entering condenser water, and leaving condenser water. The sensors are to be installed in customer’s piping system.
- Page 7 The footprint of an array of standard modules will increase as the valves add length. Total Access™ module footprint will not change. 1. Multistack recommends controlling the chiller pumps to maintain pressure differential across the chiller, not the system. Control based on system pressure will provide erratic results.
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Page 8: General Data
NOTES: Figures in parentheses ( ) apply to Total Access™ configuration chillers. Add 75 lbs. per module if equipped with enclosure panels. Multistack has a policy of continual improvement and reserves the right to change product design, literature and specifica- tions without notice. -
Page 9: Shipping Information
Pallet #2 — Buss Connections 8. Buss bar 10. Ground strap 9. Buss bar insulation 11. Junction Box leg Multistack has a policy of continual improvement and reserves the right to change product design, literature and specifica- tions without notice. - Page 10 Module on Pallet Jack Multistack chiller modules MS010 through MS085 may be moved using a fork lift truck, pallet jack or similar equipment. Optional spreader bars for lifting and factory-installed wheels are available from Multistack. Contact your Multistack representative. For unit weights see the table on Page 8 and the job-...
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Page 11: Clearances And Dimensions
Clearances Diagram shows typical dimensions and the recommended clearances around the modular chiller. There must be a minimum of six inches clearance over the top of the chiller, including the top of master controller if installed on top of the module. For specific unit dimensions, refer to as-built submittal drawings. -
Page 17: Piping, Flow Protection
Proof of chilled water and condenser water flow is required by the Master Controller inputs. Paddle-type or Differential Pressure (DP) switches may be used. Switches can be supplied by Multistack as an option, otherwise they are to be field supplied and installed. Chillers purchased with chilled or condenser water pump modules have a DP switch installed across the pump to verify operation. -
Page 18: Pressure Relief Piping, Water Treatment Specifications, Pipe Flushing
Pressure Relief Piping and Refrigerant Monitoring Multistack chiller modules use a small refrigerant charge (typically 0.6 lbs. per ton) and are often exempt from many requirements of ASHRAE 15 Standard. Pressure relief valves are not standard on water-cooled modules and must be special ordered if required by local codes. -
Page 19: Module Assembly, Standard Modules
Module Assembly Multistack chiller modules and multiple module chiller arrays are designed to be mounted on steel rails. Opposite End Same End 1. Determine the entering and leaving evaporator and condenser connection arrangement before setting mounting rails and mod- ules modules in place. Connections may be at the same end or opposite ends, depending upon jobsite requirements. - Page 20 Module Assembly 6. Slide module into position. 5. Place first module on the rails. 7. Place subsequent modules onto rails. 8. Leave sufficient space between modules to install coupling gaskets. 10. Slide modules together lining up footing holes. Install bottom joining bolts. 9.
- Page 21 16. Install filter stop rings on module closest to piping take-off. The 9-inch long pipe stubs supplied by Multistack are to be installed at the take-off ends of the chiller. 15. Install the header blank ends, starting at bottom, then move to the top blank that includes drain valves (evaporator shown).
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Page 22: Module Assembly, Total Access™ Modules
Module Assembly - Total Access™ Modules Multistack Total Access modular chillers are assembled into chiller arrays in the same manner as non-Total Access modules as shown on Pgs. 19-21. Grooved flange water connections on Total Access chiller modules joined into a chiller array. -
Page 23: Multiflush Assembly, Leak Testing
Multiflush System Assembly The following procedure describes installation of the Multiflush automatic debris removal system. This system is used periodically to remove dirt and debris from the from the chiller heat exchangers. 1. Attach Multiflush pipe to module header pipe. 2. -
Page 24: Electrical Installation, Wiring, Electrical Data
NOTE: Contact the local Multistack representative before installing the buss bar. Depending on the start-up representative’s policy, the attachment of the buss bar system, and power phase monitor to the electrician’s wire and lugs may be the responsibility of the electrician or the Multistack autho- rized start-up technician. - Page 25 6. Single-phase power for the modules should be taken off 7. Follow the procedure in Step 5 to complete installation of two lines of the buss bar. Multistack recommends using Lines 1 and 2. Lines 1 and 3.
- Page 26 10. The ground bar must be drilled, then attached to the module 12. Install the power phase monitor as shown. When correctly ground lug. installed the lettering on the power phase monitor is inverted. 11. Reinstall the buss duct and isolation switch covers. Install Wires are run to the normally open contact of the power phase the main power connectors as shown.
- Page 27 The unit may have more than one electrical power supply. Assume all electrical wires are live, energized wires. Use lockout/tagouts. Multistack has a policy of continual improvement and reserves the right to change product design, literature and specifica- tions without notice.
- Page 28 System Wire & Fuse Sizing Specifications Compressor Rated Load Amps (RLA) and Locked Rotor Amps (LRA) Data Standard and Total Access™ Modules RLA/LRA VOLTAGE MS010X* 13.1/136 11.8/136 5.9/66.1 4.7/55.3 MS015X 24.8/240 22.4/240 11.9/130 9.1/93.7 MS020X 28.1/240 25.4/240 13.9/140 10.7/107.6 MS030X 49.8/340 45.0/340 22.5/173...
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Page 29: Frame And Enclosure Panel Installation
Frame & Panel Installation Attachment of the optional enclosure panels is the responsibility of the Multistack authorized start-up technician. Typical installation is shown. 1. Install panel clips and spindle posts on the 2. Attach panel supports on outside of end modules. -
Page 30: Installation Checklist
We further understand that the services of Multistack Authorized Start-up Engineer will be furnished for a period of not more than sixteen (16) consecutive normal working hours and we agree that a charge for time and expenses will be made by Multistack if services are required for longer than sixteen (16) consecutive normal working hours or if repeat calls are required through no fault of Multistack. -
Page 31: Start-Up Data Log
START-UP DATA LOG START-UP DATE: _______________________________ SHIP DATE: _____________________________ JOB NAME: _________________________________JOB NUMBER: _____________________________ ADDRESS:_________________________________________________________________ MULTISTACK REPRESENTATIVE: ____________________________________________________ MODEL NUMBER: ____________________________________________________________ DESIGN PARAMETERS MODULE SERIAL NUMBERS 1. ECHW ____________________ 1. ____________________ 7. _______________________ 2. LCHW ____________________ 2. ____________________ 8. _______________________ 3. - Page 32 Start-Up Data Log, Cont’d Actual Setpoints Factory Setup 1. ECHW (Upset) ____________________ 1. Program Type __________________ 2. LCHW (Loset) ____________________ C. CHW Bypass _________________ 3. VSP __________________________ 2. Chiller Type ___________________ 4. Control ________________________ D. CHW Min Output ______________ 5. TDIFF _________________________ 3.
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Page 33: Operation
The valves on a Multistack chiller are dual purpose. First, a user defined number of valves can be programed to remain open at all times as a minimum flow bypass through the chiller. This is selectable at the master controller or through the BAS with an optional web-portal. Second, the motorized valves modulate to maintain leaving chilled water temperature control out of each heat exchanger. -
Page 34: Maintenance
Factory Setup/Commissioning Go to the System Variables Menu and select Factory Settings to access the program type and other setup information. Setup is to be done by the Multistack authorized startup technician. Setup parameters are factory set to default values. Jobsite conditions must be configured at startup. To change these set- tings requires a password that is available to authorized service technicians by calling Multistack at (608-366-2400). - Page 35 16’ / 7 psi. To keep HP faults from repeating, the strainers will need to be pulled and cleaned. If HP faults still occur after cleaning the strainer cartridges the condenser pump should be checked for proper flow. If flow is not a problem the heat exchangers may need to be cleaned. Refer to Multistack Heat Exchanger Cleaning Bulletin (MAINT-003-0416).
- Page 36 Filter Driers Multistack modules contain very short piping runs to the major components. Only a micro refrigerant charge (0.6 lbs. per ton) is used, and all circuits are evacuated to 150 microns. For this reason a liquid line filter drier is not factory installed in the unit. When changing a major component in the system, a replaceable core suction line filter kit can be added to reduce contamination.
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Page 37: Troubleshooting
Troubleshooting Multistack modular chillers use the Carel PCO3 master control. A user manual for the PCO3 controller is supplied with the submittal package. The user manual details the different status screens and explanations of system or module faults. Use the following guide to troubleshoot modules and the PC03 controller. -
Page 38: Daily Log
lllMULTISTACK Chiller Daily Log Sheet Job Name: Job Number: Module Serial Numbers: Date: Status Suct. Press Head Press Suct. Temp LoChw Temp Fault (if any) Comp #1 Comp #2 Comp #3 Comp #4 Comp #5 Comp #6 Comp #7 Comp #8 Comp #9 Comp #10 Comp # 11... -
Page 39: Daily Log
lllMULTISTACK Chiller Daily Log Sheet Job Name: Job Number: Module Serial Numbers: Date: Status Suct. Press Head Press Suct. Temp LoChw Temp Fault (if any) Comp #1 Comp #2 Comp #3 Comp #4 Comp #5 Comp #6 Comp #7 Comp #8 Comp #9 Comp #10 Comp # 11... - Page 40 1065 Maple Avenue P.O. Box 510 Sparta, WI 54656 Phone 608-366-2400 • info@multistack.com www.multistack.com MS-IOM-001 0317 Supersedes MS-IOM-001 0117...
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