Carrier PrimeLINE Operation And Service Manual page 15

Always turn OFF the unit circuit breakers (CB-1 & CB-2) and disconnect main power supply
before working on moving parts.
Installation requires wiring to the main unit circuit breaker, CB-1. Make sure the power to the
unit is off and power plug disconnected before beginning installation.
Before powering on the unit, it is important to ensure that all dismantling work is done and
tools are away and service personnel are not working on the unit at the time of power on.
Before removing the Supply or Return air sensors from the unit, turn the ON/OFF switch and
circuit breaker to the OFF position. Disconnect the power plug from the unit. Follow proper
lockout/tagout procedures to ensure the power cannot inadvertently be energized. It is
important that all dismantling work is done and tools and personnel are away from the unit
before powering on the unit for calibration.
When performing the Return Air Sensor calibration, disconnect both evaporator motors.
When charging the unit with R-513A refrigerant, charge as a liquid only. R-513A is an azeotrope
blend containing R-1234yf and R-134a. Charging or topping off as a vapor will result in an incor-
rect mixture of blend in the system.
Charge water-cooled condenser or receiver according to nameplate specifications to ensure
optimal unit performance.
Do not remove wire harnesses from circuit boards unless you are grounded to the unit frame
with a static safe wrist strap or equivalent static drain device.
Remove the controller module and unplug all connectors before performing any arc welding on
any part of the container.
Do not attempt to use an ML2i PC card in an ML3 equipped unit. The PC cards are physically
different and will result in damage to the controller.
WARNING
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WARNING
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WARNING
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WARNING
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WARNING
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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CAUTION
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