Condenser selection – Bally Refrigerated Boxes BVC Generation C – Direct Drive Air-Cooled – Vertical Air User Manual
Page 25
8.Are you Replacing a Water Cooled Condenser with
a Remote Air Cooled Condenser?
If this is the case, it should be remembered that the
compressor will operate at a higher discharge pressure
after converting to air cooled. To help minimize the
resulting loss in capacity, the condenser should be sized
generously. In other words, you may consider keeping the
balance point of the condenser as low as possible.
TABLE 1 - CONDENSING TEMPERATURE GUIDELINES
TABLE 2 - HEAT OF REJECTION FACTORS
- 25 -
CONDENSER SELECTION
* TD - Condenser TD guideline
OPEN - Direct Drive or Belt Drive open compressors
HERM - Hermetic or semi-Hermetic, Refrigerant (suction) cooled motor compressors.
9. Is this an application for multiple circuits?
If you wish to utilize the condenser for multiple circuits,
then all of the above data must be obtained for EACH
circuit. After obtaining this information, proceed to the
MULTIPLE CIRCUIT WORKSHEET (P. 27) (for single
circuit applications refer to the SINGLE CIRCUIT
WORKSHEET (P. 26) ).
Evaporating
Temperature
Condensing Temperature Guidelines
(at 85
o
to 105
o
Ambient Temperature)
TD*
85
o
F
90
o
F
95
o
F
100
o
F
105
o
F
Low Temp Systems
(-40
o
F to +9
o
F Evap Temps)
95-100
o
F
100-105
o
F
105-110
o
F
110-115
o
F
115-120
o
F
10-15
Medium Temp Systems
(+10
o
F to +34
o
F Evap Temps)
100-105
o
F
105-110
o
F
110-115
o
F
115-120
o
F
120-125
o
F
15-20
High Temp Systems
(+35
o
F to +50
o
F Evap Temps)
105-110
o
F
110-115
o
F
115-120
o
F
120-125
o
F
125-130
o
F
20-25
Air Conditioning Systems
(+40
o
F to +50
o
F Evap Temps)
110-115
o
F
115-120
o
F
120-125
o
F
125-130
o
F
130-135
o
F
25-30
EVAPORATOR
TEMPERATURE
CONDENSING TEMPERATURE
90
o
F (32
o
C)
100
o
F (38
o
C) 105
o
F (41
o
C)
110
o
(43
o
C)
115
o
F (46
o
C) 120
o
F (49
o
C) 130
o
F (55
o
C) 140
o
F (60
o
C)
o
F
o
C
OPEN
HERM OPEN HERM OPEN HERM OPEN HERM OPEN HERM OPEN HERM OPEN HERM OPEN HERM
-40
-30
-20
-10
0
10
20
30
40
50
-40
-34
-29
-23
-18
-12
-7
-1
4
10
*
1.37
1.33
1.28
1,24
1.21
1.17
1.14
1.12
1,09
1.66
1.57
1.49
1.42
1.36
1.31
1.26
1.22
1.18
1.14
*
1.42
1.37
1.32
1.28
1.24
1.20
1.17
1.15
1.12
1.73
1.62
1.53
1.46
1.40
1.34
1.29
1.25
1.21
1.17
*
1.44
1.39
1.34
1.30
1.26
1.22
1.18
1.16
1.13
1.76
1.65
1.55
1.48
1.42
1.36
1.31
1.26
1.23
1.19
*
1.47
1.42
1.37
1.32
1.28
1.24
1.20
1.17
1.14
1.80
1.68
1.58
1.50
1.44
1.38
1.33
1.28
1.24
1.20
*
*
1.44
1.39
1.34
1.30
1.26
1.22
1.18
1.16
1.90
1.74
1.61
1.53
1.47
1.40
1.35
1.30
1.25
1.22
*
*
1.47
1.42
1.37
1.32
1.28
1.24
1.20
1.17
2.00
1.80
1.65
1.57
1.50
1.43
1.37
1.32
1.27
1.23
*
*
*
1.47
1.41
1.36
1.32
1.27
1.23
1.20
*
*
*
1.64
1.56
1.49
1.43
1.37
1.31
1.26
*
*
*
*
1.47
1.42
1.37
1.32
1.28
1.24
*
*
*
*
1.62
1.55
1.49
1.42
1.35
1.29