Terminal Box; Motor Winding - Emerson Copeland Scroll Digital ZRD36KRE Application Manuallines

4.2.1 Terminal box

The standard terminal box is IP21 for all models with internal motor protection (TF*/PF*), enclosure
class according to IEC 60034-5.
Cable glands have an influence on the protection class of the terminal box. It is strongly
recommended to use appropriate cable glands in order to reach the rated protection class. We
advise installers/service providers to pay attention to this aspect every time they install or replace
a Copeland Scroll compressor and to use cable glands according to EN 50262 or any other
relevant standard of application in their country/region. Examples of correct electrical installations
are shown in Figures 16 & 17 below.
Figure 16: Correct electrical installation with cable glands for IP21 T-box (compressors ZRD36KRE & ZRD48KRE)
Figure 17: Correct electrical installation with cable glands for IP21 T-box (compressors ZRD61KRE to ZRD92KRE)

4.2.2 Motor winding

Compressor model ZRD36KRE is available in single-phase (PF*). The other ZRD*KRE models
are offered with three-phase (TF*) induction motors. Single-phase motors need a run capacitor
while all three-phase motors are connected in star.
The motor insulation material is class "B" for compressor models covered in these guidelines. This
is according to VDE 0530, IEC 34-18-1 or DIN 57530.
16 C6.2.44/0219/E