Bitzer KT-600-4 Manual Del Usuario página 44

Design of oil level controllers and accessories
The volume of the reservoir must be sufficiently large to compensate for different oil circulation rates in the system
(e.g. increased oil return from evaporators after defrosting). Oil level controllers, oil reservoirs, differential pressure
valves, oil filters (in the feed line to controllers), oil separators and check valves must be designed in accordance
with manufacturer's specifications. In addition, check valves and oil separators are subject to the information given
above ( see page 40 , see page 40 ).
Adaptors for mounting the oil level controllers are supplied by their respective manufacturers. To define the re-
quired adaptors, the following table lists the BITZER compressor series along with the appropriate sight glasses.
Compressor series
CE1 .. CE3
CE4, CE8
BE5, BE6
BS4 .. BS6
2‐stage
BO(A)3 .. BO(A)6
BOS6
open drive compressors
CH1 .. CH3
R744 subcritical (standard)
CH4
R744 subcritical (standard)
CME1 .. CME5
R744 subcritical (high
standstill pressure)
CKH(E)2 .. CKH(E)5
R744 transcritical
Tab. 2: Assignment of sight glasses to types of reciprocating compressors
with adaptor for screw connection
Fig. 10: Examples of oil level controllers for screwed and flanged connections (source: Armaturenwerk Altenburg, AWA)
KT-600-4 // PDF Download
Types
2KE .. 2CE
4FE .. 4BE
4VE .. 4NE
8GE, 8FE
4JE .. 4FE
6JE .. 6FE
S4T .. S4G
S6J .. S6F
2N, 4T, 4N, 4H, 4G
6H, 6G, 6F, S6H, S6G, S6F
W2TA, W2NA
W4TA .. W4GA
W6HA .. W6FA
2NSL .. 2CSL
4FSL .. 4CSL
4VSL, 4TSL, 4PSL, 4NSL
2MME .. 2DME
4FME .. 4DME
4TME .. 4PME
6PME
2MTE, 2KTE
4PTE .. 4DTE
Oil level controller
Sight glasses
Screw 3‐hole flange
sight glass D 60 x 7 mm
1 1/8‐18 UNEF
X
X
X
X
with adaptor for flange connection
4‐hole flange
D 67 x 8.5 mm
X
X
X
X
X
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