P24A & P34A Service Manual
INSTALLING YOUR TUBE-ICE MACHINE
12/20/12
3-12
P24A Condenser Water
P34A Condenser Water
Entering
Water
Flow
GPM
Cond.
PSID
Entering
Water
Flow
GPM
Cond.
PSID
85
°
F
196
14
85
°
F
371
12
80
°
F
131
6
80
°
F
241
5
75
°
F
98
3
75
°
F
185
3
70
°
F
79
2
70
°
F
148
2
65
°
F
66
2
65
°
F
124
1
60
°
F
56
1
60
°
F
106
1
55
°
F
49
1
55
°
F
93
1
50
°
F
44
1
50
°
F
82
1
Total Heat Rejection
THR = 981,300 BTUH
Total Heat Rejection
THR = 1,852,500 BTUH
Condenser water flow is based on pulldown of 30
°
F SST and 105
°
F SDT. Condenser water
pressure drop does not include water regulating valve. Consult factory for sizing if desired.
TABLE 3-2
Condenser Water Requirements
The following table show the model of Marley cooling tower required for operating at various wet
bulbs to cool 91
°
F (33
°
C) entering water to 85
°
F (29.4
°
C) exiting water.
Model
GPM
Cond. PD
PSIG
75
°
°
°
°
F
76
°
°
°
°
F
77
°
°
°
°
F
78
°
°
°
°
F
79
°
°
°
°
F
80
°
°
°
°
F
P24A
195
14
494G
494G
494G
494G
494G
494G
P34A
375/400*
13
496K
496K
496K
496K
(2) 495K
(2) 496K
* Note: P34A with a condenser containing carbon steel tubes, require 375gpm water flow. P34A with a
condenser containing stainless steel tubes, require 400gpm water flow.
TABLE 3-3
Marley Cooling Tower Recommendations
Tower nozzles will be selected based on GPM required for condenser.
The condenser water pump should be sized on GPM required for condenser at 80 ft. total discharge
head for a typical installation. However, due to cooling tower location and pressure drop through
water lines, the water pump should be sized for each installation.
The ice machine is supplied with a fan control switch for cycling the cooling tower fan on and off,
thereby maintaining the proper operating head pressure. If the condenser inlet water temperature is
expected to be below 75
°
F/24
°
C, a water regulating valve should be installed in the condenser water
inlet line and adjusted to maintain a head pressure of not less than 175 psig.
See FIGURES 3-5 through 3-8 for possible cold climate installations with indoor sump.
Safety Valves.
Four safety pressure relief valves are an integral part of the packaged Tube-Ice
machine. Two are located in the low side of the system on the freezer, and two are in the high side
of the system on the receiver. Vent each of the pressure relief valves to the atmosphere in such a
manner as to comply with local and national codes. Refer to the International Institute of Ammonia
Refrigeration (IIAR) standard for specific requirements and instructions.
Содержание TUBE-ICE P-24A
Страница 1: ...12 20 12 P 24A P 34A TUBE ICE MACHINE Service Manual 5000 ...
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Страница 16: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 4 FIGURE 1 1 P24A Front Side Control Panel ...
Страница 17: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 5 FIGURE 1 2 P24A Right Side ...
Страница 18: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 6 FIGURE 1 3 P24A Back Side ...
Страница 19: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 7 FIGURE 1 4 P24A Left Side ...
Страница 20: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 8 FIGURE 1 5 P34A Front Side ...
Страница 21: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 9 FIGURE 1 6 P34A Right Side ...
Страница 22: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 10 FIGURE 1 7 P34A Back Side ...
Страница 23: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 11 FIGURE 1 8 P34A Left Side Control Panel ...
Страница 24: ...P24A P34A Service Manual INTRODUCTION 12 18 12 1 12 FIGURE 1 9 P24A Compressor Diagram ...
Страница 28: ...P24A P34A Service Manual RECEIPT OF YOUR TUBE ICE MACHINE 12 26 12 2 4 ...
Страница 32: ...P24A P34A Service Manual INSTALLING YOUR TUBE ICE MACHINE 12 20 12 3 4 FIGURE 3 2 P24A Foundation Layout ...
Страница 35: ...P24A P34A Service Manual INSTALLING YOUR TUBE ICE MACHINE 12 20 12 3 7 FIGURE 3 4 P34A Foundation Layout ...
Страница 36: ...P24A P34A Service Manual INSTALLING YOUR TUBE ICE MACHINE 12 20 12 3 8 FIGURE 3 5 Lifting Procedure for P24A ...
Страница 37: ...P24A P34A Service Manual INSTALLING YOUR TUBE ICE MACHINE 12 20 12 3 9 FIGURE 3 6 Lifting Procedure for P34A ...
Страница 49: ...P24A P34A Service Manual HOW YOUR TUBE ICE MACHINE WORKS 8 25 05 4 3 FIGURE 4 1 Piping Schematic for P24A ...
Страница 50: ...P24A P34A Service Manual HOW YOUR TUBE ICE MACHINE WORKS 8 25 05 4 4 FIGURE 4 2 Piping Schematic for P34A ...
Страница 64: ...P24A P34A Service Manual ELECTRICAL CONTROLS 12 17 12 6 8 FIGURE 6 7 Allen Bradley Soft Start Motor Wiring ...
Страница 99: ...P24A P34A Service Manual SERVICING OPERATIONS 12 18 12 9 13 Figure 9 5B P24A Water Tank Assembly ...
Страница 115: ...P24A P34A Service Manual TABLES CHARTS 12 18 12 11 1 11 Tables Charts ...
Страница 125: ...Appendix A ...
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Страница 146: ...P24A P34A Service Manual INDEX 12 26 12 12 4 ...