Models
Composition
Refrigerant charge limit
kg
lbs
DSF315U
DSF200
12
26
DSF350E
DSF175
14
31
DSF400E
DSF200
14
31
DSF330U
DSF175
14
31
DSF331U
DSF200
12
26
DSF355U
DSF200
14
31
DSF375U
DSF200
14
31
DSF400X
DSF270
14
31
DSF500X
DSF325
14
31
DSF470X
DSF270
14
31
DSF525X
DSF325
14
31
DSF540E
2xDSF270
21
46
DSF595U
DSF325
21
46
DSF650E
2xDSF325
25
55
DSF800U
DSF530
21
46
DSF855U
DSF530
25
55
DSF970E
DSF485
34
75
DSF1060E
DSF530
34
75
Table 32: Charge limits for Trio models
Models
Composition
Refrigerant charge limit
kg
lbs
DSF465T
3 × DSF155
14
31
DSF525T
3 × DSF175
14
31
DSF600T
3 × DSF200
14
31
DSF810T
3 × DSF270
21
46
DSF975T
3 × DSF325
25
55
DSF1180T
DSF530
25
55
DSF1385T
DSF325
34
75
DSF1590T
3 × DSF530
34
75
Power supply and electrical protection
Wiring information
Requirements
• Protect the compressor from short circuit and overcurrent by a thermal magnetic motor circuit breaker set to Max.
operating current or lower (see table in section Three phase electrical characteristics). For DSF090-200, phase
sequence protection is strongly recommended.
• DSF 270-530 compressors are delivered with a pre-installed motor protection module inside the terminal box that
must be powered on.
• HP safety switch and electronic module relay output (M1-M2) must be wired in the safety chain. Other safety
devices such as LP can be either hardware or software managed.
• Provide separate electrical supply for the heaters so that they remain energized even when the machine is out of
service (e.g. seasonal shutdown).
The wiring diagrams below are examples for a safe and reliable compressor wiring:
© Danfoss | Climate Solutions | 2023.06
AB309735209512en-000603 | 49
Scroll compressors, DSF090 to DSF530 | Application