Trane 4TTL6018A1000A, Installation And Operation Manual

Page: 15 / 36

18-BC98D1-1G-EN 15
Service Valves
Table 18. Open the Gas Service Valve
Important: Leak check and evacuation must be completed before
opening the service valves.
Note: Do not vent refrigerant gases into the atmosphere.
1. Remove valve stem cap.
2. Using a wrench, turn valve stem 1/4 turn counterclockwise to
the fully open position.
3. Replace the valve stem cap to prevent leaks. Tighten finger
tight plus an additional 1/4 turn.
Cap
1/4 Turn Only
Counterclockwise
for Full Open Position
Valve Stem
Unit Side
of Valve
Pressure Tap Port
Gas Line Connection
Table 19. Open the Liquid Service Valve
W WA AR RN NIIN NG G
S SE ER RV VIIC CE E V VA AL LV VE ES S!!
F Fa aiillu urre e tto o ffo ollllo ow w tth hiiss w wa arrn niin ng g w wiillll rre essu ulltt iin n a ab brru up ptt
rre elle ea asse e o off ssy ysstte em m cch ha arrg ge e a an nd d m ma ay y rre essu ulltt iin n
p pe errsso on na all iin njju urry y a an nd d//o orr p prro op pe errtty y d da am ma ag ge e..
E Ex xttrre em me e cca au uttiio on n ssh ho ou ulld d b be e e ex xe errcciisse ed d w wh he en n
o op pe en niin ng g tth he e S Su uccttiio on n a an nd d L Liiq qu uiid d L Liin ne e S Se errv viicce e
V Va allv ve e.. T Tu urrn n v va allv ve e sstte em m cco ou un ntte errccllo occkkw wiisse e o on nlly y
u un nttiill tth he e sstte em m cco on ntta accttss tth he e rro olllle ed d e ed dg ge e.. N No o tto orrq qu ue e
iiss rre eq qu uiirre ed d..
Important: Leak check and evacuation must be completed before
opening the service valves.
4. Remove service valve cap.
5. Fully insert 3/16” hex wrench into the stem and back out
counterclockwise until valve stem just touches the rolled edge
(approximately five (5) turns).
6. Replace the valve cap to prevent leaks. Tighten finger tight
plus an additional 1/4 turn.
Cap
3/16” Hex Wrench
Rolled Edge to
Captivate Stem
Hex Headed
Valve System
Service Port
Unit Side
of Service
Valve