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Mueller Falling Film Chiller  

 Effective February 12, 2003

Installation and Operation Manual, Part No. 9843514 

 

 

Revised March 17, 2020

  2.14 

CLEANING THE SYSTEM

IMPORTANT: The system should be cleaned before the reservoir is filled. This will retard the growth of 

algae, which could result in fouling of the distribution pan.

Before filling the reservoir with water, perform the following cleaning procedures:

1.  Remove all dirt, paper, and any other debris that accumulated during shipment and installation.

2.  Fill the reservoir with 30 to 50 gallons of water and operate the circulating pump with the refrigeration 

compressor turned off. 

3.  Check all liquid solution piping and components for leaks. After confirming that the system has no leaks, drain 

the reservoir, and proceed with the outlined cleaning procedure.

4.  Fill the reservoir with approximately 50 gallons of 160°F water and 8 pounds of high-quality trisodium 

phosphate. (Mix the trisodium phosphate with water before pouring into the reservoir.)

5.  Operate the circulating pump for 30 minutes with the refrigeration unit(s) off. During this time, brush the 

inside of the reservoir to clean the areas that are not submerged.

6.  Drain the wash solution and fill with 30 to 50 gallons of lukewarm rinse water.

7.  Operate the circulating pump for 10 minutes while manually rinsing the reservoir walls not submerged.

8.  Drain the rinse water and fill the reservoir to within 8" of the top with deionized or distilled water. 

IMPORTANT: Do not use standard softened water, as there is an increased possibility of chloride 

corrosion to the stainless steel evaporator or remote, secondary plate heat exchanger.

  2.15   TEST RUNNING

After the refrigeration and water piping is completed, the flows are set, all the electrical connections are made, both 

water temperature sensors are installed, and the system has been cleaned, it is time to test run the system.

Start the circulating pump. After determining the chilled water system is operating properly, start the refrigeration 

system(s) and check the setpoints of the refrigeration units, as described in Section 3.

  2.16 

CHLORINE GAS RUSTING

IMPORTANT: In rare cases, it is possible for chlorine gas to escape from the water as it passes over the 

falling film chiller. If this occurs, red rust will begin to form inside the chiller on the areas that are not 

constantly wet. 

The use and regular maintenance of a charcoal filter on the incoming city water will remove most of the chlorine 

from the water before it enters the chiller and help to prevent chlorine gas rust from occurring.

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Содержание Falling Film Chiller

Страница 1: ...Part No 9843514 Effective February 12 2003 Revised March 17 2020 Falling Film Chiller INSTALLATION AND OPERATION MANUAL...

Страница 2: ......

Страница 3: ...4 Locating Refrigeration Units 9 2 5 Connecting the Refrigerant Lines 9 2 6 Liquid Line Solenoid Valve 10 2 7 Water Line Connections 10 2 8 Makeup Water Valve 10 2 9 Connecting the Overflow Line 11 2...

Страница 4: ...ent 15 3 3 Hot Gas Adjustment 15 3 4 Liquid Injection Adjustment 15 3 5 Ambient Fan Cycling Control Adjustment 16 Figure 4 Condensing Unit Schematic 16 Figure 5 Wiring Schematic 17 Table of Contents M...

Страница 5: ...enoid assembly is optional Hinged and gasketed top doors are available as an option A clamp type ferrule and male pipe thread adapter are included for the inlet Falling film chiller expansion valves f...

Страница 6: ...in Weight lb Weight with Top Door in 2 8 plate cabinet 70 40 75 46 75 49 25 436 420 Refrigerant plate 64 Glycol plate 48 Pan 49 3 x 5 Tankless Length in Width in Height in Height with Top Door in Weig...

Страница 7: ...imum flow rate 50 2 gpm per plate 2 Using low flow distribution pan Minimum flow rate 17 9 gpm per plate Maximum flow rate 28 7 gpm per plate 3 Using extra low flow distribution pan Minimum flow rate...

Страница 8: ...pipe flange Optional 6 8 and 10 RFSO pipe flanges are also available 1 5 MODEL 4 X 8 DIMENSIONS 4 4 x 8 with Tank Length in Width in Height in Height with Top Door in Weight lb Weight with Top Door i...

Страница 9: ...the falling film chiller in two basic styles Figure 1 shows the plate used for direct expansion or recirculated refrigeration systems Figure 2 shows the plate used for flooded refrigeration systems FI...

Страница 10: ...22 33 44 55 66 77 88 99 110 121 132 MODEL 4 X 8 No of Plates 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Lbs of R 22 25 F 34 68 102 136 170 204 238 272 306 340 374 408 442 476 510 544 Lbs of R 717 25 F 17...

Страница 11: ...4 17 24 4 x 8 M 1430 25 32 4 x 8 N 150 2 8 3 x 5 O 345 2 8 3 x 5 Plate Size N 3 x 5 L 4 x 8 Cabinet Plate Material 1 304 304 2 304 316L 3 316L 316L 4 304 304 EP 5 304 316L EP 6 316L 316L EP 7 Other AS...

Страница 12: ...ller and a clearance equal to the length of the evaporator plate should remain at the end opposite the refrigeration connections B Leveling The falling film chiller is equipped with adjustable legs fo...

Страница 13: ...ge enough to prevent any increase in static pressure must be provided The units must be located so that routine maintenance can be accomplished e g cleaning the condensers and replacing the compressor...

Страница 14: ...e an alarm if the cooling solution flow should stop for some reason If the chilled water is to be routed to more than one piece of equipment a balancing valve must be used to regulate the flow of wate...

Страница 15: ...1 and the condensing unit The most efficient way to accomplish this is to sense the temperature entering the pan Sensor A should be installed in the 1 2 FPT port between the water makeup valve and the...

Страница 16: ...bution pan versus flows please see Section 2 10 or contact Paul Mueller Company s Service Department at 1 800 756 5991 or DFETechService paulmueller com 2 12 DISTRIBUTION PAN WATER FLOW RATES 2 13 REC...

Страница 17: ...he wash solution and fill with 30 to 50 gallons of lukewarm rinse water 7 Operate the circulating pump for 10 minutes while manually rinsing the reservoir walls not submerged 8 Drain the rinse water a...

Страница 18: ...nting can be accomplished by installing a fan in the top of the chiller and an air intake in the lowest point possible at the other end This cross flow of air will remove the gas from the interior of...

Страница 19: ...valve located on the suction header Measure the temperature at the expansion valve suction bulb location Set the superheat at 12 F to 13 F which is a little high because of the 50 F product temperatur...

Страница 20: ...rmostats should be adjusted according to the number of condenser fans as follows 1Fan No 1 is closest to the header end 2Four fan units are duplex design and fans are cycled in pairs FIGURE 4 CONDENSI...

Страница 21: ...h HGS Hot Gas Solenoid HP High Pressure Contacts Dual Pressure Control LIS Liquid Injection Solenoid M1 M2 Condenser Fan Motors MDS1 Main Disconnect Switch OPSS Oil Pressure Safety Switch PD Pump Down...

Страница 22: ......

Страница 23: ...1600 West Phelps Street Springfield Missouri 65802 U S A Service 1 800 756 5991 DFETechService paulmueller com 1 800 MUELLER WWW PAULMUELLER COM...

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