Yazaki WFC-SC Series Installation Manual Download Page 1

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  WFC- SC(H)
       Chiller
           &
  Chiller-Heater

Installation

WFC-SC(H)10, 20,30 & 50

Version 11-1

Summary of Contents for WFC-SC Series

Page 1: ...WFC SC H Chiller Chiller Heater 2 Installation WFC SC H 10 20 30 50 Version 11 1...

Page 2: ...Electrical Wiring 5 1 Electrical system diagram 12 5 2 Electrical connection of auxiliary equipment 12 5 3 Junction box electrical wiring 13 5 3 1 Location of Junction box 13 5 3 2 Inside of Junction...

Page 3: ...impact 3 Do not attempt to start the system without supervision from a Yazaki authorized service agent 1 2 Receiving When the absorption chiller heater is delivered to site inspect it for transit dam...

Page 4: ...possible to use a crane for lifting a fork lift truck may be utilized In the event a crane or forklift cannot be used and the machine must be manhandled into position minimum dimensions for maneuver...

Page 5: ...f the recommended service clearances cannot be provided as indicated the chiller heater should not be installed Figure 3 Table of Clearances Installation Area Maintenance Clearances Model WFC SC H A B...

Page 6: ...distribution of working fluids internal to the machine to be impaired poor cooling performance will result 3 4 Placement For SC H 10 20 30 When the chiller heater is finally positioned on its foundati...

Page 7: ...indicated in figure 9 to obtain longitudinal and transverse level Should the installation comprise more than one chiller heater located side by side it is important that all machines be individually l...

Page 8: ...er temperatures during commissioning and maintenance procedures All piping should be properly aligned and graded to a drain valve to permit complete drainage of the system Properly located air vents s...

Page 9: ...7 Do not exceed 588 kPa in the water heat medium circuit Figure 10 Typical piping system diagram WFC SC20 SH20 WFC SC30 SH30 WFC SC50 WFC SC10 SH10 Cooling Tower P P P P P P Air vent Air vent Drain Ch...

Page 10: ...it install purge valves to expel trapped air Valve Thermometer Wells Chiller Heater Chiller Heater Chilled hot water pump Fan coil Fan coil Expansion tank Closed System Open System Water supply Cister...

Page 11: ...ater circuit 4 3 Cooling Water Piping Cooling water to the absorption chiller heater is required at a temperature of 31 C or less during cooling operation It is also imperative that cooling water less...

Page 12: ...eater warranty 4 4 Heat Medium Piping The heat medium pipe work will most likely be a closed system Accordingly since temperature of the heat medium may operate as high as 95 C with a standard inlet 8...

Page 13: ...ote 4 Connect to Junction Box Note 5 In case of using 3 wayvalve Note 6 CTS P3A RT1 CM1 3 3way valve RT1 THR1 P SW1 RT2 THR2 CP SW2 RTF THRF SWF RT3 THR3 P3A SW3 RT3 LMT1 SWV RTV Do not exceed 24VAC 6...

Page 14: ...cation of Junction box Junction box is located left bottom of the Chiller refer to figure 5 3 1a WFC SC H 10 20 30 WFC SC50 Junction box is located rear bottom of the Chiller refer to figure 5 3 1b Fi...

Page 15: ...ing water pump 4 Error signal from cooling water pump 5 Error signal from cooling tower fan 6 Error signal from heat medium pump 7 Not Use 8 Not Use CM2 Error signals common circuit S3 S4 Requirement...

Page 16: ...ote switch Connect the dry contact signal according to Figure 5 4 2 Take off the 2 screw to open the cover Take off the front panel CB Figure 5 4 1 Control panel Attention You must not give any voltag...

Page 17: ...WFC SC H Series Installation 16 5 4 3 Position of RUN REMOTE STOP Switch Adjust the Run Remote Stop switch to the position of the Remote RUN REMOTE STOP Switch Figure 5 4 3 Control Panel...

Page 18: ...B Figure 5 5 1 typical connection L1 L2 L3 U V W TR1 TR3 TR14TR5 TR6 TR7 TR8 15 16 17 18 S14 S13 S12 S11 TR9TR10TR11TR12TR13 S1 S2 S5 S6 S8 S9 S10 R1 24VAC L1 L2 R2 R1 R2 GL RL Terminal marking Descri...

Page 19: ...th substantial bleed off would be necessary to achieve this result in the cooling water circuit If such water quality in supply is not available under all circumstances chemical treatment is required...

Page 20: ...ler heater has been installed piped flushed leak tested and electrically wired as described in these instructions and in full compliance with all pertinent safety codes the Yazaki authorized distribut...

Page 21: ...ipes 13 Make up and fill lines installed to the cooling tower and chilled hot water circuit 14 Air vent valves correctly installed 15 All water pipes cleaned flushed filled and leak tested ready for o...