Manuals / Lochinvar / Household Appliance / Water System

Lochinvar TST2313, MP2 Display, Symbol Description, Boiler Demand DHW / Setpoint Demand WWSD

Models: TST2313 INS7162 INS7141 MP2

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DISPLAY

DISPLAY

Boiler Demand

DHW / Setpoint Demand

WWSD

External Input Signal

Offset

FIG. 2

SYMBOL DESCRIPTION

FIG. 3

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Image 3

Lochinvar TST2313, MP2 Display, Symbol Description, Boiler Demand DHW / Setpoint Demand WWSD, External Input Signal Offset

Contents

INTRODUCTION ADDITIONAL FUNCTIONS INCLUDEINSTALLATION INSTRUCTIONS MENU TABLE OF CONTENTSADJUST USER INTERFACEBoiler Demand DHW / Setpoint Demand WWSD SYMBOL DESCRIPTIONDISPLAY External Input Signal OffsetSECTION A GENERAL OPERATION Boiler Reset Stand AloneDEFINITIONS SEQUENCE OF OPERATIONFixed Lead Rotation AlarmBoiler Alarm Combustion Air C. AMode Resetting the Rotation SequenceResetting the Running Times SECTION B STAGING OPERATIONFire Delay Fire DelayLo / Hi Lo / LoPrimary Pump Purge SECTION C PUMP OPERATIONFixed Differential Auto DifferentialSECTION 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 3 - Primary Pump during Set Point SECTION G EXTERNAL INPUT OPERATIONSETP MODE 1 - Setpoint in Parallel SETP MODE 2 - Set Point in Parallel with Priority2 - 10 V dc or 4 - 20 mA 0 - 10 V dc or 0 - 20 mABoiler Demand INSTALLATION115 V ac Power GeneralPrimary Pump Contact Prim P1 Combustion Air / Alarm Contact C.A./AlarmSet Point Demand External Input 0 - 10 V dcOutdoor Sensor UnOccupied SwitchRelay 9 / DHW Boiler Return SensorSet Point Demand External InputBoiler Demand DHW DemandRelay 1 to Relay Combustion Air or Alarm C.A. / AlarmPrimary Pump Prim P1 Relay 9 / DHWDIP 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 Boil Mass Stage DelayBoiler Minimum Boiler Maximumm 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