What does 'Exceeded Threshold Low Temperature User Water Reference' mean on my Blue Box KAPPA V SR Chiller?
If your Blue Box Chiller displays an alarm for 'Exceeded Threshold Low Temperature User Water Reference' and the compressor is not running, it indicates excessive thermal load. Reduce the thermal load.
Rules for installation and servicing, emphasizing manual adherence and precautions.
Procedures for checking unit integrity upon receiving it, documenting any damage.
Guidelines for safe unloading, positioning, and handling of the unit using appropriate equipment.
Defines external and internal danger zones and access restrictions for personnel safety.
General safety rules including PPE, tool usage, and caution around moving parts and hot components.
Details risks and solutions related to unit stability, sharp edges, moving parts, and entanglement.
Details risks of burns from high temperatures and their mitigation through insulation.
Addresses hearing damage risks and the unit's design for noise reduction.
Covers risks from contact with live parts and inappropriate insulation.
Guidelines for selecting a suitable site, considering dimensions, connections, and environmental factors.
Ensuring adequate air volume around the condenser for performance and preventing recirculation.
Details on rubber and spring anti-vibration isolators for reducing vibration transmission.
Requirements for water pipework installation, including flexible joints and necessary devices.
Details on connecting water inlet and outlet to the evaporator, emphasizing correct flow and antifreeze.
Information on flexible joints for axial movement, vibration elimination, and assembly procedures.
Connection details for desuperheaters using steel tubes with male threads.
Hydraulic connection requirements for heat recovery condensers and their management.
Details on the placement and venting of pressure relief valves for refrigerant circuit safety.
The nominal water flow rate is based on a 5 °C temperature difference between inlet and outlet.
The minimum evaporator leaving water temperature is 6 °C; for lower water temperatures at the evaporator outlet refer to section 6.6.
The minimum water temperature at the condenser inlet, once the system is operating in steady state conditions, must not be lower than 28 °C.
The units are designed and built to operate with ambient air temperatures within the limits shown on the operating limits diagrams.
If the unit is required to operate at ambient air temperatures less than 15 °C a fan speed controller must be included.
Units from the normal production range are not designed to operate with chilled water temperatures lower than 6 °C.
Electrical connections must be made in accordance with the information given on the electrical drawing attached to the unit.
Details the procedure for connecting power supply to crankcase heaters and their initial warm-up.
Lists the available potential free contacts for unit alarms, compressors, fans, and pumps.
Explains the electrical connections for circulating pumps and their role in unit operation.
Describes the pCO2 microprocessor controller and its functions for managing the unit.
Details the optional RS485 serial interface for supervision and remote diagnostics.
Explains the LCD display and function keys of the user interface for unit control.
Essential checks before unit start-up, covering electrical, refrigerant, and system integrity.
Overview of microprocessor control managing water temperature and compressor operations.
Procedure for starting the unit, including enabling contacts and microprocessor controller manual.
Instructions for stopping the unit temporarily, seasonally, or in an emergency.
Method for performing an emergency stop using the main disconnect switch.
General checks for unit operation, including water temperature and pump noise.
Procedures for checking refrigerant charge via sight glass, temperature, and pressure.
Guidance on checking factory-calibrated control equipment and safety devices.
General safety warnings for maintenance, emphasizing qualified personnel and precautions.
Lists periodic checks for unit operation, categorized by frequency.
Procedures for repairing the refrigerant circuit, including leak testing, vacuuming, and charging.
Information on refrigerant recovery, disposal, and environmental regulations for R407C.
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