Lochinvar TST2313 - Manuals

Resetting the Rotation Sequence To reset the rotation sequence, set the Rotate / Off DIPswitch to the Off setting for 5 seconds and then return theDIP switch to the Rotate setting. R UNNING T IMES The control displays the accumulated running time of eachboiler in the VIEW menu. When using a multi-st...

L O / H I OR L O / L O When using multi-stage boilers, a selection must be maderegarding the staging order of the boiler(s). This adjustmentis made in the ADJUST menu of the control. Lo / Hi If the Lo/Hi staging option is selected the control stages insequence all of the stages in a single boiler. O...

S TAGE D ELAY The stage delay is the minimum time delay between the fir-ing of stages. After this delay has expired the control canfire the next stage if it is required. This setting can be adjust-ed manually or set to an automatic setting. When the auto-matic setting is used, the control determines...

B OILER P UMP O PERATION In certain modes of operation, the control can operate theindividual boiler pumps on each boiler in addition to the pri-mary pump. The boiler pump turns on prior to the boiler fir-ing and continues to run after the boiler is turned off. Theamount of time that the boiler pump...

N UMBER OF B OILERS U SED F OR DHW G ENERATION The number of boilers used for DHW generation can beselected from one to the maximum number of boilers usingthe BOIL DHW setting. This applies when only a DHWDemand is present. If there are other demands present, thecontrol does not limit the number of ...

B OILER T ARGET D URING S ET P OINT The boiler target temperature during a set point demand isincreased to at least the Set Point setting. This temperatureis maintained as long as the control has a set point demand. S ET P OINT M ODE SETP MODE 1 - Setpoint in Parallel Whenever a set point demand is ...

S TEP O NE ----- G ETTING R EADY Check the contents of this package. If any of the contentslisted are missing or damaged, please contact your whole-saler or Lochinvar sales representative for assistance. MP 2 includes: One Boiler Control MP 2 , One Outdoor Sensor TST2311, Two Temperature Sensors TST...

Set Point Demand To generate a setpoint demand, a voltage between 24 V(ac) and 230 V (ac) must be applied across the Setp / DHWand Com Dem terminals (8 and 7) (FIG. 26). The DHWMODE must be set to OFF. External Input (0 - 10 V dc) To generate an external input signal, a voltage between 0and 10 V (dc...

 C ONNECTING T HE C ONTROL Make sure all power to the devices and terminal blocks isoff, and remove any remaining jumpers from the terminals. Reconnect the terminal blocks to the control by carefullyaligning them with their respective headers on the control,and then pushing the terminal blocks into...

The control has a built-in test routine that is used to test themain control functions. The control continually monitors thesensors and displays an error message whenever a fault isfound. See the following pages for a list of the control’serror messages and possible causes. When the Test but-ton is ...

The control was unable to read a piece of information storedin its memory (FIG. 53). Because of this, the control wasrequired to reload the factory settings into all of the items inthe ADJUST menu. The control will stop operation until allof the items in the ADJUST menu of the control have beencheck...

The control is no longer able to read the boiler return sen-sor due to an open circuit (FIG. 59). The control will contin-ue to operate normally. Locate and repair the problem asdescribed in INS7141. To clear the error message from thecontrol after the sensor has been repaired, press either theMenu ...

34 MP2 Tekmar 150 Controller TYPICAL DWH PRIORITY HEATING PACKAGE SYSTEM