Application
The 22Z570 Terminal Box is a further development of
the reliable KRIWAN motor protectors.
The 22Z570 Terminal Box incorporates an INT69
I2 Diagnose and INT185 Current Transformer to
protect the compressor against thermal and electrical
overload.
The 22Z570 Terminal Box is designed to replace
existing terminal boxes on Carlyle 06D and 06CC
compressors. For 4 or 2 cylinder compressors, a
mounting spacer may be needed.
Functional description (with PTC thermistors)
Up to 9 PTC-sensors according to DIN 44081/082
with different nominal response temperatures can be
connected in series to the measuring circuit. If the
temperature in one of the areas monitored exceeds
the nominal response temperature of the respective
PTC-sensor, the sensor resistance increases and the
INT69 I2 switches off. See data sheet of INT69 I2 for
additional information.
One phase of the three phase power must go
through the INT185 current transformer. If the current
going through the current transformer exceeds the
programmed amps of the INT69 I2, the INT69 I2
switches off. See data sheet of INT185 for additional
information.
Installation
This unit is designed to be mounted on Carlyle
06D and 06CC compressors. Do not use on other
compressor models.
22Z570 Terminal Box
06D Terminal Box
This unit must be installed and connected
to a compressor that has a motor with PTC
sensors properly installed in series on each
phase.
!
This unit must be programmed to the proper
MCC trip amps of the compressor. It comes
preprogrammed with a trip amp setting of 4A
as a default.
!
To ensure proper electrical grounding, this unit
must be installed to the compressor using two
bolts with star lock washers. Star lock washers
should penetrate any paint to ensure a good
electrical connection.
!
The mounting, maintenance and operation are
to be carried out by an electrician. The valid
European and national standards for connecting
electrical equipment and cooling installations
have to be observed. Connected sensors and
connection lines that extend from the terminal
box have to feature at least a basic insulation.
!
L
N
1
2
3
14
11
1
2
3
To Control
Circuit
120/240V
1
2
3
8
9
Field Connection
Field Connection
GND
Field Connection
Picture
L
N
1
2
3
14
11
1
2
3
To Control
Circuit
120/240V
1
2
3
8
9
Field Connection
Field Connection
GND
Field Connection
Wiring diagram - 5 Pin Terminal Plate (PTC only)
Wiring diagram - 6 Pin Terminal Plate
7
PTC
Thermostat
Pins 8-9
PTC
Wiring for PTC Overloads & Instuctions
