Installation and Commissioning Guide
Split Ducted Outdoor Units
Installation and Commissioning Guide - Standard Commercial Split Ducted Commercial Outdoor Unit
Doc. No.0525-056
Ver. 7 220308
21
11.03. Evacuation Procedure (Triple Evacuation)
1. Fit service gauges to the ball valves (liquid line service valve and suction line service valve).
2. Evacuate the system to 1000 microns.
3. Check vacuum with vacu stat. Break the vacuum with dry Nitrogen to 100kPa.
4. Release Nitrogen pressure. Evacuate to 500 microns.
5. Check vacuum with vacu stat. Break the vacuum with dry Nitrogen to 100kPa.
6. Release Nitrogen pressure. Evacuate to 500 microns.
7. Check vacuum with vacu stat. Let the unit stand for 1 hour and with the vacuum not rising above 500 microns.
8. Open valve.
TO OPEN TURN ANTI-CLOCK WISE (1/4 TURN)
( As Shipped Position )
CLOSE
TO CLOSE TURN CLOCK WISE (1/4 TURN)
( Operating Position )
OPEN
OPEN
CLOSED
Wrench Key
( OPEN = Operating Position )
( CLOSED = As Shipped Position )
OPEN
CLOSED
Wrench Key
(OPEN= Operating Position)
(CLOSED= As Shipped Position)
