4
C6.2.15/0815/E
ARI Conditions:
Evaporating temperature ...... 7.2°C
Liquid sub-cooling ......................... 8.3K
Condensing temperature .....54.4°C
Ambient temperature ..................... 35°C
Suction gas superheats ........... 11K
EN 12900 Conditions:
Evaporating temperature .......... 5°C
Liquid sub-cooling ............................ 0K
Condensing temperature ........ 50°C
Ambient temperature ..................... 35°C
Suction gas superheats ........... 10K
2.3 Application range
2.3.1 Qualified refrigerants and oils
IMPORTANT
It is essential that the glide of refrigerant blends (primarily R407C) is
carefully considered when adjusting pressure and superheat controls.
Oil recharge values can be taken from Copeland Scroll compressors brochures or Copeland
™
brand products Select software at
www.emersonclimate.eu
.
Qualified refrigerants
R407C
R410A
Copeland brand
products standard oil
Emkarate RL 32 3MAF
Servicing oil
Emkarate RL 32 3MAF
Mobil EAL Arctic 22 CC
Mobil EAL Arctic 22 CC
Table 1: Qualified refrigerants and oils
2.3.2 Application limits
CAUTION
Inadequate lubrication! Compressor breakdown!
The superheat at the
compressor suction inlet must always be sufficient to ensure that no
refrigerant droplets enter the compressor. For a typical evaporator-expansion
valve configuration a minimum stable superheat of at least 5K is required.
ZRD42K*E to ZRD81K*E ZRD94K*E & ZRD125K*E
Figure 1: Application envelopes with R407C (Dew point)
25
30
35
40
45
50
55
60
65
70
-25
-20
-15
-10
-5
0
5
10
15
20
Con
dens
ing T
e
mpe
ra
tu
re
(
o
C)
Evaporating Temperature (
o
C)
R407C
25
30
35
40
45
50
55
60
65
70
-35 -30 -25 -20 -15 -10 -5
0
5
10
15
20
25
Con
dens
ing T
e
mpe
ra
tu
re
(
o
C)
Evaporating Temperature (
o
C)
R407C
10K Suction superheat
25
0
C Suction gas return
