Daikin Screw Chiller AWV026

Warning: This cleaning procedure requires trained personnel with PPE!

Is the coil free of surface debris?

If grease or oil film is present, it should be removed with the approved cleaning agent before applying CHLOR*RID DTS.

Was the entire coil surface thoroughly wetted with the cleaning agent?

After the substrate has been thoroughly wetted, the salts will be soluble and it is now only necessary to rinse them off.

Was the coil rinsed with a hose?

Warning: A pressure washer will damage the fins. The water used for the rinse is recommended to be of potable quality.

Was all cleaner residue thoroughly rinsed off?

Enter the Discharge Temperature

Enter the Saturated Oil Temperature

Is Discharge Temperature > Saturated Oil Temperature + 5°C?

Is Discharge Temperature < Saturated Oil Temperature + 4.5°C?

DANGER: Electric equipment can cause electric shock which will cause severe personal injury or death. Turn off, lock out and tag all power before continuing with following service. Panels can have more than one power source.

CAUTION: Periodically check electrical terminals for tightness and tighten as required. Always use a backup wrench when tightening electrical terminals.

Power turned off, locked out and tagged?

Electrical terminals checked for tightness

Backup wrench used when tightening electrical terminals

Sign off on the electrical terminals check

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.

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.

Start the system by moving pumpdown switch Q1 to the “Auto” position.

- Water strainer installed on evaporator, 0.125” (3.2mm) or smaller perforations

- Water System filled, flushed and vented

- Pumps installed and operational (rotation checked, strainers cleaned)

- Controls operational (3-way valves, face/bypass dampers, bypass valves, etc.)

- Water system operated and tested; flow meets unit design requirements

- Flow switch installed and wired