INSTALLATION MANUAL - Daikin AC

7 Compressor8 Liquid stop valve9 Gas stop valveSwitchbox6. PRECAUTIONS ON INSTALLATION LOCATIONWARNINGBe sure to provide for adequate measures in order toprevent that the unit be used as a shelter by small animals.Small animals making contact with electrical parts cancause malfunctions, smoke or fire. Please instruct thecustomer to keep the area around the unit clean and clear.1 2 31 Reactor2 Inverter PCB3 Service monitor PCB4 Power supply terminal5 Communication terminal6 Communication bottom plate heater5.3. Functional diagram45666.1. General precautionsSelect an installation site that meets the following requirements:■■■■■■■■■There must be sufficient space for carrying the unit into and outof the site.The foundation must be strong enough to support the weight ofthe unit. The floor is flat to prevent vibrations and noisegeneration and to have sufficient stability.The space around the unit is adequate for maintenance andservicing.The space around the unit allows for sufficient air circulation.There is no danger of fire due to leakage of inflammable gas.The equipment is not intended for use in a potentially explosiveatmosphere.Select the location of the unit in such a way that the sound anddischarged cold/hot air generated by the unit does not disturbanyone, and the location is selected according the applicablelegislation.All piping lengths and distances have been taken intoconsideration.Take care that in the event of a water leak, water cannot causeany damage to the installation space and surroundings.NOTEUnits cannot be installed hanging from ceiling orstacked.21 Heat exchanger2 4-way valve3 Compressor4 Accumulator5 Expansion valve6 Liquid stop valve134567■Do not install the unit in places such as the following:■ Where there is mist of mineral oil, oil spray or vapour forexample a kitchen.Plastic parts may deteriorate, and cause them to fall out orwater to leak.■ Where corrosive gas, such as sulphurous acid gas, isproduced.Corrosion of copper pipes or soldered parts may cause therefrigerant to leak.■ Where there is machinery which emits electromagneticwaves.Electromagnetic waves may disturb the control system, andcause malfunction of the equipment.■ Where flammable gases may leak, where carbon fiber orignitable dust is suspended in the air or where volatileflammables, such as thinner or gasoline, are handled.Such gases may cause a fire.■ Where the air contains high levels of salt such as that nearthe ocean.■ Where voltage fluctuates a lot, such as that in factories.■ In vehicles or vessels.■ Where acidic or alkaline vapour is present.7 Gas stop valveERLQ018~030BAVJUOutdoor unit for air to water heat pump4PW62590-1 – 07.2010Installation manual4