What to do if my Multistack Chiller has high discharge pressure (HP)?
If your Multistack chiller is showing high discharge pressure, you should check the strainers in the condenser headers and verify the condenser water flow.
What to do if the Multistack MS010XC Chiller is 'Waiting For Chilled Water Flow'?
If your Multistack chiller displays a 'Waiting For Chilled Water Flow' message, you should: * Check the chilled water pump. * Check the flow switch operation. * Inspect the filter strainers. * Check TB11 inputs #3 - #7.
General| Tons | 10 |
|---|---|
| Cooling Capacity | 120, 000 BTU/hr |
| Refrigerant Type | R-410A |
| Compressor Type | Scroll |
| Sound Level | 68 dBA |
| Voltage | 208-230/60/3 |
Location and purpose of the chiller's identification plate for model feature lookup.
Explanation of the coded structure of the chiller's model number for identifying options.
Diagram and labels identifying components of a standard chiller module.
Diagram and labels for components of Total Access modules, emphasizing serviceability.
Description of the main control panel and its functionalities and connections.
Details on module control boards, low voltage panel, and Auto/Off/Manual switch.
Information on the high voltage panel, circuit breakers, and isolation switches.
Details on compressors, pressure transducers, and related safety switches.
Specifications for chilled and condenser water piping connections and strainers.
Explanation of expansion valves, subcooling, and liquid line sight glass indicators.
Details on motorized valves for variable flow in chilled and condenser water systems.
Information about optional manual or electrically actuated isolation valves.
Description of the optional hot gas bypass valve and its adjustment.
Dimensions and clearances for standard modules, including plan and elevation views.
Dimensions for standard modules with extended headers for evaporators and condensers.
Dimensions for standard modules with extended headers on condensers for variable flow designs.
Dimensions for standard modules with extended headers on evaporators for variable flow designs.
Dimensions for Total Access modules, with or without variable flow options.
Guidelines for supporting and connecting piping, and recommendations for system strainers.
Requirements for flow switches and differential pressure switches for system control.
Recommendations for minimum system water volume to prevent short cycling.
Recommendations for controlling condenser water temperature using a three-way tower bypass valve.
Recommended water quality parameters for chilled and condenser water systems.
Detailed procedure for flushing piping systems with detergent and acid solutions.
Procedures for mounting chiller modules on steel rails with vibration pads.
Steps for placing and joining multiple chiller modules using couplings and bolts.
Instructions for installing header blank ends, drain valves, and pipe stubs.
Procedure for installing the automatic debris removal (Multiflush) system.
Steps for performing static leak pressure tests and purging air from the system.
Compliance with regulations, voltage limits, and imbalance considerations for field wiring.
Details on connecting single modules, including junction box requirements.
Instructions and considerations for installing buss bar systems.
Steps for connecting buss bar wires to isolation switches and modules.
Installing the ground bar, power phase monitor, and main power connectors.
Details on single point power connections and module wiring.
Diagram showing wiring connections to the master control and external inputs/outputs.
Fields for recording actual setpoints and factory setup parameters.
Table for recording module current and temperature readings.
Control logic for maintaining leaving chilled water temperature set points.
Operation of motorized valves for variable flow and minimum flow bypass.
Configuration settings, program types, and jobsite conditions for startup.
Understanding discharge and suction pressures, and common fault indicators.
Procedures for cleaning strainers and heat exchangers to prevent fouling.
Checking compressor oil levels and proper refrigerant charging procedures.
Information on filter driers, superheat, and subcooling in the refrigeration circuit.
Key items to check during annual maintenance, including electrical and mechanical components.
Procedures for addressing compressor failures and cleaning heat exchangers.
Guide to identifying and resolving common module and master control faults.
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