Yazaki Aroace WFC-SH10 Operations Instructions

WATER FIRED SINGLE-EFFECTABSORPTION CHILLER AND CHILLER-HEATERThis product is a water fired absorption unit which provides chilled water for cooling o

10OPERATIONCOOLING1. Select STOP on the REMOTE-STOP-RUNswitch to stop heating operation. (If currentlyoperating in the heating mode.)2. Push COOLING

11MAINTENANCEGENERAL INFORMATIONALL MAINTENANCE SHOULD BE PERFORMED BY SKILLED, EXPERIENCEDPERSONNEL. Your Authorized Yazaki ServiceProvider can help

12WATER QUALITYIt is the Owner/End User’s responsibility to have the cooling water analyzed and chemicallytreated (as often as necessary) so that it c

13SYMPTOM: Poor cooling capacityPOSSIBLE CAUSE REMEDYPoor vacuumEvacuate noncondensible gases from the vacuum section throughservice valves A and B. L

14ERRORCODEDESCRIPTION REMARKSE29-E32 NACTI (cooling water temperature sensor)Shutdown when open circuit (<14.4oF)E33wire open circuitdetected for

15WARRANTYYAZAKI LIMITED EXPRESS WARRANTY1. Scope of Coverage. The Limited Express Warranty of Yazaki Energy Systems, Inc ( Company ) applies to the

16AUTHORIZED YAZAKI SERVICE PROVIDERFor information concerning service, operationor technical assistance, please contact yourAuthorized Yazaki Service

GENERAL2These instructions are intended to acquaintthe Owner/End User with the operation and general maintenance requirements of YazakiWater Fired Sin

3HEATING OPERATIONGeneratorWhen the heat medium inlet temperatureexceeds 154.4oF (203oF max.) the solution pump forces dilute lithium bromide solution

4Fig.2 SINGLE-EFFECT ABSORPTION CYCLE (HEATING)EvaporatorHot refrigerant vapor condenses on the surface of the evaporator coil and heat, equivalent to

5CONTROLSGENERAL INFORMATIONA control panel, shown in Fig. 3, is builtinto each absorption chiller or chiller-heater and is located on the control box

6Chiller or Chiller-HeaterFig. 4 LOCATION OF CONTROLSFuse PanelREPLACEMENT FUSESSYMBOL RATING TYPEFT1, FT2 5AFuji ModelF11, F12 2A FGAO-2 ratedF4 2A25

SOLUTION PUMP THERMALOVERLOAD SETTINGS (A)MODEL SYMBOL 208VWFC-SC10THRP 0.4WFC-SH10WFC-SC20THRP 0.7WFC-SH20WFC-SC30THRP 2.0WFC-SH30The 208V, 60Hz, 3 p

8CONTROL ADJUSTMENTSThe leaving chilled water and hot water temperature controls are set at the factory to theStandard Specifications shown in Fig. 5.

Normal StopBy Temp ControlStartHM PumpOn (Note)C/H WaterPump OnC/HWTR/PumpOPGNoYesStopC/HWaterTempOperationHeatingCLG/HTGCoolingCW Pump OnNoCWPumpOPGY