Manuals / Lochinvar / Household Appliance / Water System

Lochinvar INS7141, MP2, INS7162, TST2313 installation instructions

Models: TST2313 INS7162 INS7141 MP2

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Lochinvar INS7141, MP2, INS7162, TST2313 installation instructions

Contents

ADDITIONAL FUNCTIONS INCLUDE INTRODUCTIONINSTALLATION INSTRUCTIONS ADJUST TABLE OF CONTENTSUSER INTERFACE MENUDISPLAY SYMBOL DESCRIPTIONExternal Input Signal Offset Boiler Demand DHW / Setpoint Demand WWSDDEFINITIONS Boiler Reset Stand AloneSEQUENCE OF OPERATION SECTION A GENERAL OPERATIONBoiler Alarm AlarmCombustion Air C. A Fixed Lead RotationResetting the Running Times Resetting the Rotation SequenceSECTION B STAGING OPERATION ModeLo / Hi Fire DelayLo / Lo Fire DelayFixed Differential SECTION C PUMP OPERATIONAuto Differential Primary Pump PurgeBoiler Pump Purge SECTION D BOILER RESET OPERATIONFIG. temperature in the building This type of a hydronic radiant floor is embedded in either a thick concrete or gypsumpour. This heating system has a large thermal mass and is slow acting FIG DHW DEMAND SECTION E DOMESTIC HOT WATER OPERA- TIONDHW MODE OFF - NO DHW When a DHW Demand is present, the Relay 9 / DHW con- tact terminals 30 and 31 is closed and the primary pump contact is closed. Priority can only be obtained using exter- nal wiring. During a priority override, the Relay 9 / DHW contact is opened until the heating system has recovered before returning to DHW operation, see Figure 19. This mode can be used if a DHW tank is piped in direct return and a DHW valve is installed SECTION F SET POINT OPERATION SETP MODE 1 - Setpoint in Parallel SECTION G EXTERNAL INPUT OPERATIONSETP MODE 2 - Set Point in Parallel with Priority SETP MODE 3 - Primary Pump during Set Point2 - 10 V dc or 4 - 20 mA 0 - 10 V dc or 0 - 20 mA115 V ac Power INSTALLATIONGeneral Boiler DemandSet Point Demand Combustion Air / Alarm Contact C.A./AlarmExternal Input 0 - 10 V dc Primary Pump Contact Prim P1Relay 9 / DHW UnOccupied SwitchBoiler Return Sensor Outdoor SensorBoiler Demand External InputDHW Demand Set Point DemandPrimary Pump Prim P1 Combustion Air or Alarm C.A. / AlarmRelay 9 / DHW Relay 1 to RelayCLEANING THE CONTROL DIP SWITCH SETTINGSGENERAL Page Page Page This item is only available if the External Input / Stand Alone DIP switch is set to Stand Alone Boiler Minimum Stage DelayBoiler Maximum Boil Massm weather TESTING THE CONTROL ERROR MESSAGES is not a safety limit control TECHNICAL DATATYPICAL BOILER INSTALLATION TYPICAL BOILER INSTALLATION CONTINUED Tekmar 150 Controller TYPICAL DWH PRIORITY HEATING PACKAGE SYSTEM