Carrier AquaForce 30XQ0502 Installation, Operation & Maintenance Instructions Manual

Contents

6 Carrier Yileng - Shanghai, Chinaa destruction of the compressors. The compressors operating with this refrigerant type are lubricated with a syntheticpolyolester oil.Do not use oxygen to purge lines or to pressurize a machine for any purpose. Oxygen gas reacts violently with oil, grease,and other common substances.Never exceed the specified maximum operating pressures. Verify the allowable maximum high- and low-side test pressuresby checking the instructions in this manual and the pressures given on the unit name plate. Do not use air for leak testing.Use only refrigerant or dry nitrogen.Do not unweld or flamecut the refrigerant lines or any refrigerant circuit component until all refrigerant (liquid andvapour) has been removed from chiller. Traces of vapour should be displaced with dry air nitrogen. Refrigerant in contactwith an open flame produces toxic gases. The necessary protection equipment must be available, and appropriate fireextinguishers for the system and the refrigerant type used must be within easy reach.Do not siphon refrigerant. Avoid spilling liquid refrigerant on skin or splashing it into the eyes. Use safety goggles. Washany spills from the skin with soap and water. If liquid refrigerant enters the eyes, immediately and abundantly flush theeyes with water and consult a doctor.Never apply an open flame or live steam to a refrigerant container. Dangerous overpressure can result. If it is necessary toheat refrigerant, use only warm water.During refrigerant removal and storage operations follow applicable regulations. These regulations, permittingconditioning and recovery of halogenated hydrocarbons under optimum quality conditions for the products and optimum safetyconditions for people, property and the environment are described in standard NFE 29795.Any refrigerant transfer and recovery operations must be carried out using a transfer unit. A 3/8” SAE connector on themanual liquid line valve is supplied with all units for connection to the transfer station. The units must never be modified toadd refrigerant and oil charging, removal and purging devices. All these devices are provided with the units. Please refer to thecertified dimensional drawings for the units.Do not re-use disposable (non-returnable) cylinders or attempt to refill them. It is dangerous and illegal. When cylindersare empty, evacuate the remaining gas pressure, and move the cylinders to a place designated for their recovery. Do notincinerate.Do not attempt to remove refrigerant circuit components or fittings, while the machine is under pressure or while it isrunning. Be sure pressure is at 0 kPa before removing components or opening a circuit.Do not attempt to repair or recondition any safety devices when corrosion or build-up of foreign material (rust, dirt, scale,etc.) is found within the valve body or mechanism. If necessary, replace the device. Do not install safety valves in series orbackwards.ATTENTION: No part of the unit must be used as a walkway, rack or support. Periodically check and repair or if necessaryreplace any component or piping that shows signs of damage. The refrigerant lines can break under the weight and releaserefrigerant, causing personal injury.Do not climb on a machine. Use a platform, or staging to work at higher levels. Use mechanical lifting equipment (crane,hoist, winch, etc.) to lift or move heavy components. For lighter components, use lifting equipment when there is a risk ofslipping or losing your balance.Use only original replacement parts for any repair or component replacement. Consult the list of replacement parts thatcorresponds to the specification of the original equipment.Do not drain water circuits containing industrial brines, without informing the technical service department at theinstallation site or a competent body first. Close the entering and leaving water shutoff valves and purge the unit watercircuit, before working on the components installed on the circuit (screen filter, pump, water flow switch, etc.).Do not loosen the water box bolts until the water boxes have been completely drained.Periodically inspect all valves, fittings and pipes of the refrigerant and hydronic circuits to ensure that they do not show anycorrosion or any signs of leaks. It is recommended to wear ear defenders, when working near the unit and the unit is inoperation.