Lochinvar INS7162, MP2, INS7141, TST2313 installation instructions Cleaning the Control, General

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￿CONNECTING THE CONTROL

Make sure all power to the devices and terminal blocks is off, and remove any remaining jumpers from the terminals.

Reconnect the terminal blocks to the control by carefully aligning them with their respective headers on the control, and then pushing the terminal blocks into the headers. The terminal blocks should snap firmly into place, see Figure 41.

Install the supplied safety dividers between the unpowered sensor inputs and the powered or 115 V (ac) wiring cham- bers.

Apply power to the control. The operation of the control on power up is described in the Sequence of Operation section of this instruction manual.

FIG. 41

FIG. 42

EXTERNAL INPUT / STAND ALONE

The External Input / Stand Alone DIP switch selects whether a Lochinvar Outdoor Sensor TST2311 or an external 0 - 10 V (dc) input signal is to be connected to the Com - and the Out + terminals (1 and 4) (FIG. 43).

CLEANING THE CONTROL

The control’s exterior can be cleaned using a damp cloth. Moisten the cloth with water and wring out prior to wiping the control. Do not use solvents or cleaning solutions.

DIP SWITCH SETTINGS

GENERAL

The DIP switch settings on the control are very important and should be set to the appropriate settings prior to mak- ing any adjustments to the control through the User Interface. The DIP switch settings change the items that are available to be viewed and / or adjusted in the User Interface.

If a DIP switch is changed while the control is powered up, the control responds to the change in setting by returning the display to the VIEW menu, see Figure 42.

FIG. 43

ADVANCED / INSTALLER

The Adv / Installer DIP switch selects the access level of the control (FIG. 44). In the Installer access level, a limited number of items may be viewed and / or adjusted. In the Advanced access level, all items may be viewed and / or adjusted.

ALARM / COMBUSTION AIR

FIG. 44

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Contents Installation Instructions Additional Functions IncludeTable of Contents Display Domestic Hot Water Boiler Reset Stand AloneSection a General Operation Set PointCombustion Air C. a AlarmBoiler Alarm Fixed Lead RotationSection B Staging Operation Resetting the Rotation SequenceResetting the Running Times ModeLo / Hi Fire DelayLo / Lo Fixed Differential Section C Pump OperationMed Auto DifferentialSection D Boiler Reset Operation Boiler Pump PurgeType of terminal unit. This improves the control of the air High Mass Radiant Section E Domestic HOT Water OPERA- Tion DHW DemandDHW Mode 4 DHW in Primary / Secondary with Priority Section F SET Point Operation Setp Mode 1 Setpoint in Parallel Section G External Input OperationDc or 0 20 mA Dc or 4 20 mABoiler Demand Ac PowerGeneral DHW 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 Boiler Supply SensorExternal Input Combustion Air or Alarm C.A. / Alarm Primary Pump Prim P1Cleaning the Control GeneralRotate / OFF Page Page Page Boiler Minimum Stage DelayDHW Mode Boiler MaximumThis item is only available when DHW Mode is set to OFF Testing the Control Error Messages Technical Data Is not a safety limit controlTypical Boiler Installation Typical Boiler Installation Typical DWH Priority Heating Package System