OEM Manual – CUBO
2
SMART
Pag. 13
7.2
Refrigerant & Oil Charging
7.2.1
Oil charge
All CUBO
2
Smart are equipped by SCM with an additional pre-charged of
250ml of Oil (type PAG VG100) in the receiver. This info is highlighted with
a label applied in the switch panel door.
Take care to avoid moisture ingress. PAG oil is extremely hygrosopic!
Oil type approved is DAPHNE PZ100S or RENISO PAG100.
7.2.2
Procedure for additional oil refill
1.
Close valve 1 (89 on circuit diagram)
2.
Stop the unit (switch off)
3.
Vent gas at valve 1 until pressure drops
to 0 bar g (check on display)
Internal check valve (138 on circuit
diagram) will prevent emptying the
whole circuit.
4.
Charge 125 ml oil at valve 1 – use a
manual stirrup pump
5.
Evacuate from valve 1 & isolate manifold
6.
Slowly open valve 1 & remove manifold
when pressure is above 10 bar g
7.
Wait for 5 min
8.
Re start the unit
9.
After 20 min, repeat the procedure to
add remaining oil (125 ml)
