Daikin Screw Chiller AWV008

Warning: Handle POE oil with proper protective equipment (gloves, eye protection, etc.)

CAUTION: Avoid prolonged exposure of refrigerant to the atmosphere

Select the type of POE oil used

Compressor oil heater is on when the compressor is off and off when the compressor is on?

Sign off on the lubrication procedure

Annual (or spring startup) operations include all weekly and monthly operations.

- Inspect thermal insulation for integrity

Electrical ( * including the VFDs):

- Check contactors for pitting, replace as required

- Check terminals for tightness, tighten as necessary

Prior to this procedure, pump out the compressor. Isolate the electrical supply to the control panels and compressor motor terminal. Filter should be changed when pressure drop delta goes above the linear line in Figure 74.

After the compressor has been pumped down and isolated, the oil contained inside the filter housing will remain hot enough to cause burns for some time afterwards. Always allow sufficient time for the oil to cool down so that it is cool enough not to be a danger when drained off (less than 35°C is recommended). Severe injury from burns can result.

Oil filter assembly components are:

Prior to this procedure, pump out the compressor. Isolate the electrical supply to the control panels and compressor motor terminal. Filter should be changed when pressure drop delta goes above the linear line in Figure 74.

After the compressor has been pumped down and isolated, the oil contained inside the filter housing will remain hot enough to cause burns for some time afterwards. Always allow sufficient time for the oil to cool down so that it is cool enough not to be a danger when drained off (less than 35°C is recommended). Severe injury from burns can result.

Oil filter assembly components are:

NOTICE: Daikin Applied service personnel or factory authorized service agency must perform initial startup in order to activate warranty. Return the “Screw Compressor Equipment Warranty Form” within 10 working days to Daikin Applied as instructed on the form to obtain full warranty benefits.

CAUTION: Most relays and terminals in the unit control center are powered when S1 is closed and the control circuit disconnect is on. Therefore, do not close S1 until ready for startup or the unit may start unintentionally and possibly cause equipment damage.

Inspect the chiller to ensure no components became loose or damaged during shipping or installation, including leak test and wiring check.

Double check that the discharge shutoff valve and the optional compressor suction butterfly valves are open.

Check that the manual liquid line shutoff valves at the outlet of the subcooler coils are open.

Check the leaving chilled water temperature set point on the MicroTech® III controller to be sure it is set at the desired chilled water temperature.

Start the auxiliary equipment for the installation by turning on the time clock, and/or remote on/off switch, and chilled water pump.

Check to see that pumpdown switches Q1 and Q2 are in the “Pumpdown and Stop” (open) position. Throw the S1 switch to the “Auto” position.

Under the “Control Mode” menu of the keypad, place the unit into the automatic Cool Mode.