Danfoss DSH Series Application Guide

Table 35: Charge limits for Trio models
Models
Composition
Refrigerant charge limit
kg
lbs
DSH420T
3×DSH140
14
31
DSH483T
3×DSH161
14
31
DSH552T
3×DSH184
14
31
DSH720T
3×DSH240
21
46
DSH885T
3×DSH295
25
55
DSH971T
2×DSH295 + DSH381
25
55
DSH1140T
3×DSH381
29
64
DSH1245T
2×DSH381 + DSH485
29
64
DSH1350T
DSH381 + 2×DSH485
29
64
DSH1455T
3×DSH485
34
75
DSH1570T
2×DSH485 + DSH600
34
75
DH1685T
DSH485 + 2×DSH600
34
75
DSH1800T
3×DSH600
44
97
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
DSH090-105-120-140-161-184, phase sequence protection is strongly recommended.
• Compressor models DSH240-295-381-485-600 are delivered with a pre-installed motor protection module inside
the terminal box that must be powered on.
• HP safety switch, DGT (only for DSH090 to DSH184) and electronic module relay output (M1-M2, only for DSH240
to DSH600) 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:
Figure 59: Compressor model DSH 090 - 105 - 120 - 140 - 161 - 184
CC-0036
M
DGT
HP
UC
SS CC
F1 F1
KM
CB
Ph
L1
L1
L3 L2
L3
L2
T1
T3
T2
KM
CCH
LPS
Ph
Scroll compressors, DSH090 to DSH600 | Application
© Danfoss | Climate Solutions | 2022.10 AB288965961751en-001402 | 54

Danfoss DSH Series Specifications

General

Brand	Danfoss
Model	DSH Series
Category	Air Compressor
Language	English