Manuals / Lochinvar / Household Appliance / Water System

Lochinvar INS7141, MP2, INS7162, TST2313 Typical Boiler Installation Continued

Models: TST2313 INS7162 INS7141 MP2

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TYPICAL BOILER INSTALLATION (CONTINUED)

TYPICAL BOILER INSTALLATION (CONTINUED)

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Lochinvar INS7141, MP2, INS7162, TST2313 installation instructions Typical Boiler Installation Continued

Contents

INTRODUCTION ADDITIONAL FUNCTIONS INCLUDEINSTALLATION 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 PurgeSECTION D BOILER RESET OPERATION Boiler Pump PurgeFIG. 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 SECTION E DOMESTIC HOT WATER OPERA- TION DHW DEMANDDHW 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 RelayDIP SWITCH SETTINGS CLEANING THE CONTROLGENERAL 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