Method of operating a cooling system having one or more cooling units
First Claim
1. A method of operating a cooling system having one or more cooling units, the method comprising:
- transitioning the operation of a cooling unit of the cooling system in a main operational state between one or more operational conditions, including an off/standby condition,wherein after a predetermined time period and a synchronization of a stepper motor of the cooling unit to a closed position of a hot gas bypass valve, the cooling unit transitions to the off/standby condition in which the hot gas bypass valve of the cooling unit is fully opened,wherein temperature and discharge pressure threshold alarms of the cooling unit are disabled and fan speeds of an evaporator and a condenser of the cooling unit are set to idle, andwherein the cooling unit is ready for operation in the off/standby condition.
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Accused Products
Abstract
A method of calculating net sensible cooling capacity of a cooling unit includes measuring a discharge pressure from of fluid from a compressor and a suction pressure from an evaporator, calculating a condensing temperature of fluid flowing from the compressor and an evaporating temperature of fluid flowing from the evaporator, calculating a mass flow rate of fluid flowing from the compressor, calculating enthalpy of fluid flowing from the compressor, of fluid flowing from the thermal expansion valve, and of fluid flowing from the evaporator, calculating a mass flow rate of fluid flowing through the hot gas bypass valve, and calculating net sensible cooling capacity. Embodiments of cooling units and other methods are further disclosed.
455 Citations
15 Claims
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1. A method of operating a cooling system having one or more cooling units, the method comprising:
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transitioning the operation of a cooling unit of the cooling system in a main operational state between one or more operational conditions, including an off/standby condition, wherein after a predetermined time period and a synchronization of a stepper motor of the cooling unit to a closed position of a hot gas bypass valve, the cooling unit transitions to the off/standby condition in which the hot gas bypass valve of the cooling unit is fully opened, wherein temperature and discharge pressure threshold alarms of the cooling unit are disabled and fan speeds of an evaporator and a condenser of the cooling unit are set to idle, and wherein the cooling unit is ready for operation in the off/standby condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification