14
2.7 Application Standard & Limit (For R22, R407C and R410A)
The following requirements apply to vertical type hermetic scroll compressors:
Standard:
Applicable to ordinary conditions in Japan JIS B8616 or standards relative to JIS B8616, such
as standard rating conditions, maximum operating conditions, low temperature conditions, etc.
Limit:
Applicable to transitional brief period, such as starting and beginning of defrost mode.
Table 2-6
No.
Item
Standard
Limit
Note
1
Evaporating Temp.
Range
-15~12
℃
(5
～
54 °F)
-25~15
℃
(-13
～
59 °F)
2
Condensing Temp.
Range
30~65
℃
(86
～
149 °F)
68
℃
(155 °F)
65
℃
(149 °F) max. for R407C/R410A
3 Compression Ratio
2 ~ 6
10
(8 max. for
R407C/R410A)
4 Winding Temp.
115
℃
(240 °F) Max.
125
℃
(257 °F)
5 Shell Bottom Temp.
90
℃
(194 °F) Max.
Evaporating Temp. + 12K(21 °F) Min.
Operating
Ambient Temp. + 11K(20 °F) Min.
Not Operating
6
Discharge Gas
Temp.
115
℃
(240 °F) Max.
130
℃
( 266°F) Max. for C-SB
Within 10cm(4in.) of
the discharge fitting
135
℃
( 275°F) Max. for C-SC
Inside of the well pile
on the top of comp.
7 Suction Gas Temp.
Superheat: 5K(10 °F) Min.
No excessive noise
Items 4,5,6 and 14
shall be kept.
8 Running Voltage
Within ±10% of the rated voltage
Voltage at comp.
terminals
9 Starting Voltage
Three Phase Models: 85% of the rated voltage min.
Voltage at comp.
terminals
Single Phase Models: 90% of the rated voltage min.
10 On/Off Period
On Period: Until the oil level returns to the center of the lower
bearing
For at least 7
minutes -on/3
minutes-off is
recommendable
Off Period: Until balance of high and low pressure is obtained
11 Refrigerant Charge
Oil/Refrigerant(wt.)
≥
0.35
(Specific gravity of the Oil: SAY56T: 0.92; FV68S: 0.94)
12 Life Time
200,000 cycle
13 Minimum Oil Level
C-SB: Center of the lower bearing C-SB:Bottom of the lower bearing
C-SC: No less then 70% of the initial oil charge
14
Abnormal Pressure
Rise/Drop
Pressure Rise: see the Table 2-5
By high pressure
switch
Pressure Drop: see the Table 2-4
By low pressure
switch
15
Copper Piping
Stress
Start/Shutdown: 34.32N/mm
2
Max.
Run: 12.26N/mm
2
Max.
15
System Moisture
Level
200ppm Max.
16
System
Uncondensable
Gas Level
1 Vol.% Max.
Residual Oxygen 0.1 Vol.% Max.
24 hrs. after
vacuuming:
1.01kPa (0.15 psig)
Max.
17 Tilt
5
。
Deg.Max.
* Operation beyond the above limits must be approved by PAPCDL.
