Danfoss CXH Instructions

Instructions
Danfoss scroll compressors
CXH
R410A
5
The compressor must only be
used for its designed purpose(s)
and within its scope of application
(refer to «operating limits»).
Consult Application guidelines and
datasheet available from cc.danfoss.
com
The compressor is delivered under
nitrogen gas pressure (between
0.3 and 0.7 bar) and hence can-
not be connected as is; refer to
the «assembly» section for further
details.
1 – Introduction
These instructions pertain to the Danfoss scroll
compressors CXH used for air-conditioning
systems. They provide necessary information
regarding safety and proper usage of this
product.
2 – Handling and storage
• Handle the compressor with care. Use the
FRCC.PI.032.A3.02 - 8510269P01B
A
B
C
A: Model number
B: Serial number
C: Refrigerant
30
T (°C)
0
Under all circumstances,
the EN378 (or
applicable local safety
regulation) requirements
must be fulfilled.
The compressor must be
handled with caution in the
vertical position (maximum
offset from the vertical : 15°)
dedicated handles in the packaging. Use the
compressor lifting lug and use appropriate
and safe lifting equipment.
• Store and transport the compressor in an
upright position.
• Store the compressor between -35°C and 50°C.
• Don't expose the compressor and the
packaging to rain or corrosive atmosphere.
D: Supply voltage, Starting current & Maximum operating current
E: Housing service pressure
F: Factory charged lubricant
Installation and servicing of the compressor by qualified personnel only. Follow
these instructions and sound refrigeration engineering practice relating to
installation, commissioning, maintenance and service.
CXH140
These Danfoss scroll compressors are protected against overheating
and overloading by an internal safety motor protector. However, an ex-
ternal manual reset overload protector is recommended for protecting
the circuit against over-current.
F1
other
Fuses .................................................................... F1
Compressor contactor ....................................KM
Control relay ......................................................KA
Safety lock out relay ......................................... KS
Pump-down pressure switch ..........................LP
High pressure safety switch............................HP
Control device ....................................................TH
Liquid Line Solenoid valve .......................... LLSV
Discharge gas thermostat ...........................DGT
Fused disconnect ..............................................Q1
Compressor motor ............................................ M
Safety pressure switch ................................... LPS
Control circuit ...................................................CC
All Wiring diagrams are with pump-down cycle
CC
L1
F1
KA
KS
KM KA KA
A1
LPS
T1
A3
KS
180 s
HP
A2
TH
LP
KS
DGT
KM KA LLSV KS
3 – Safety measures before assembly
Never use the compressor in a flammable
atmosphere.
• The compressor ambient temperature may
not exceed 50°C during off-cycle.
• Mount the compressor on a horizontal flat
surface with less than 3° slope.
• Verify that the power supply corresponds to
the compressor motor characteristics (see
nameplate).
© Copyright Danfoss | Commercial Compressors | 2016.04
D
E
F
L3 L2
Q1
KM
T2
T3
M