Manuals / Lochinvar / Household Appliance / Water System

Lochinvar INS7162, MP2, INS7141 Typical Dwh Priority Heating Package System, Tekmar 150 Controller

Models: TST2313 INS7162 INS7141 MP2

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TYPICAL DWH PRIORITY HEATING PACKAGE SYSTEM

TYPICAL DWH PRIORITY HEATING PACKAGE SYSTEM

MP2

Tekmar 150 Controller

34

Image 34

Lochinvar INS7162, MP2, INS7141, TST2313 Typical Dwh Priority Heating Package System, Tekmar 150 Controller

Contents

ADDITIONAL FUNCTIONS INCLUDE INTRODUCTIONINSTALLATION INSTRUCTIONS USER INTERFACE TABLE OF CONTENTSADJUST MENUExternal Input Signal Offset SYMBOL DESCRIPTIONDISPLAY Boiler Demand DHW / Setpoint Demand WWSDSEQUENCE OF OPERATION Boiler Reset Stand AloneDEFINITIONS SECTION A GENERAL OPERATIONCombustion Air C. A AlarmBoiler Alarm Fixed Lead RotationSECTION B STAGING OPERATION Resetting the Rotation SequenceResetting the Running Times ModeLo / Lo Fire DelayLo / Hi Fire DelayAuto Differential SECTION C PUMP OPERATIONFixed 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 2 - Set Point in Parallel with Priority SECTION G EXTERNAL INPUT OPERATIONSETP MODE 1 - Setpoint in Parallel SETP MODE 3 - Primary Pump during Set Point0 - 10 V dc or 0 - 20 mA 2 - 10 V dc or 4 - 20 mAGeneral INSTALLATION115 V ac Power Boiler DemandExternal Input 0 - 10 V dc Combustion Air / Alarm Contact C.A./AlarmSet Point Demand Primary Pump Contact Prim P1Boiler Return Sensor UnOccupied SwitchRelay 9 / DHW Outdoor SensorDHW Demand External InputBoiler Demand Set Point DemandRelay 9 / DHW Combustion Air or Alarm C.A. / AlarmPrimary Pump Prim P1 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 Maximum Stage DelayBoiler Minimum Boil Massm weather TESTING THE CONTROL ERROR MESSAGES TECHNICAL DATA is not a safety limit controlTYPICAL BOILER INSTALLATION TYPICAL BOILER INSTALLATION CONTINUED TYPICAL DWH PRIORITY HEATING PACKAGE SYSTEM Tekmar 150 Controller