Technical data

2
© 2008 Emerson Climate Technologies
Printed in the U.S.A.
AE-1318 R1
Application Engineering
BULLETIN
Voltage / Frequency Restrictions
Due to inadequate cooling from refrigerant fl ow through
the compressor, the following 50 Hz applications are
not approved:
ZB95KC / ZB95KCE / ZB114KC / ZB114KCE-TWD
420 V 50 Hz
ZB95KC / ZB95KCE / ZB114KC / ZB114KCE-TW5
200-220 V 50 Hz
Compressor Lubrication
The compressors can be used with different lubricants
depending upon the refrigerant used. See Form 93-11
for a complete list of all Emerson approved lubricants.
Accumulators
Due to the inherent ability of scroll compressors to
handle liquid refrigerant in fl ooded start and defrost
cycle operation conditions, accumulators may not
be required. An accumulator is required on single
compressor systems when the charge limitations
exceed those values listed in Table 2. On systems
with defrost schemes or transient operations that
allow prolonged uncontrolled liquid return to the
compressor, an accumulator is required unless a
Figure 1D
ZB*KC (excluding ZB95KC & ZB114KC)
Application Envelope for R22 HT Applications
7-15Hp
Figure 1E
ZB95KC & ZB114KC Application Envelope for R22
HT Applications 7-15Hp
Figure 1F
ZB*KCE Application Envelope for R134A HT
Applications 7-15Hp
TABLE 2
CHARGE LIMITS
Model Family Charge Limits
ZB50, 58, 66, 76, 88, 95, 114 KC/E 16 lbs
ZB56,68,75,92KC/E & ZB11MC/E 17 lbs
Figure 1C
ZB95KCE & ZB114KCE Application Envelope for
R404A/R507 HT Applications 7-15Hp
20 F SH
,
20 F Min. SH
Evaporating Temperature
260° F DLT Limit, 20° F Superheat
20 F SH