15
CHARGING THE SYSTEM
The condenser set is factory precharged, but the airhandler and connecting
pipework needs to be purged or evacuated of non-condensables.
PLEASE NOTE:
State laws re the handling of prescribed refrigerants may prohibit the purging
method. Such laws take precedence.
Method 1 (Purging)
1. Make sure all connections are tight at the A/H.
2. Tighten firmly both flare nuts at Con/set.
3. Then ease off the
3
/8 nut one turn at the Con/set.
4. Remove both valve stem caps. See fig. 16.
5. With a 5 mm allen key, insert into stem of the
1
/4” valve and undo
1
/8 of a
turn.
6. Gas will be heard to be purging thru the eased off
3
/8 flarenut.
7. Allow to purge for 6 Secs, and tighten up the
3
/8 f/nut.
8. Now wind out both the
1
/4 &
3
/8 valve stems with the allen key until fully
back seated.
9. Put on the valve stem caps and tighten up.
10. Now check for leaks: See paragraphs following on leak testing.
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