Lochinvar MP2 Bedienungsanleitung

The MP2is capable of controlling the supply water tempera-ture for up to nine ON / OFF stages based on outdoor tem-perature, control for the Domestic

type of terminal unit. This improves the control of the airtemperature in the building. BOILER INDOOR DESIGN TEMPERATUREThe indoor design temperature

HIGH MASS RADIANT (1)This type of a hydronic radiant floor is embedded in either athick concrete or gypsumpour. This heating system has alarge therma

SECTION E: DOMESTIC HOT WATER OPERA-TIONSECTION E1: DOMESTIC HOT WATER (DHW)DHW DEMANDA DHW Demand is required for the control to provide heatto the

DHW MODE 4 - DHW IN PRIMARY / SECONDARY WITHPRIORITYWhen a DHW Demand is present, the Relay 9 / DHW con-tact (terminals 30 and 31) is closed and the p

NUMBER OF BOILERS USED FOR DHW GENERATIONThe number of boilers used for DHW generation can beselected from one to the maximum number of boilers usingt

BOILER TARGET DURING SET POINTThe boiler target temperature during a set point demand isincreased to at least the Set Point setting. This temperature

INPUT SIGNALThe control can accept either a 0 - 10 V (dc) signal or a 2 -10 V (dc) signal. The External Input Signal setting must beset to the proper

STEP ONE ----- GETTING READYCheck the contents of this package. If any of the contentslisted are missing or damaged, please contact your whole-saler

Set Point DemandTo 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

Relay 9 / DHWIf a DHW pump or DHW valve is connected to the Relay 9 /DHW contact (30 and 31) (FIG. 30), make sure the power tothe pump or valve circui

This instruction manual is organized into four main sections:1) Sequence of Operation, 2) Installation, 3) ControlSettings, and 4) Testing and Trouble

A good quality electrical test meter, capable of reading fromat least 0 - 300 V (ac) and at least 0 - 2,000,000 ohm, isessential to properly test the

 TEST THE OUTPUTSPrimary Pump (Prim P1)If a primary pump is connected to the Prim P1 terminal (11),make sure that power to the terminal block is off

 CONNECTING THE CONTROLMake sure all power to the devices and terminal blocks isoff, and remove any remaining jumpers from the terminals.Reconnect th

The Alarm / C.A. DIP switch selects whether a combustionair damper or alarm device is to be connected to the C.A. /Alarm terminals (12 and 13) (FIG. 4

24

AAA178925

This item is only available if the External Input / Stand Alone DIP switch i

Boiler MinimumBoiler MaximumFire Delay 1Fire Delay 2Co

(This item is only available when DHW MODE is s

The control has a built-in test routine that is used to test themain control functions. The control continually monitors thesensors and displays an e

DISPLAYBoiler DemandDHW / Setpoint DemandWWSDExternal Input SignalOffsetFIG. 2SYMBOL DESCRIPTION

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 s

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. Loc

32TYPICAL BOILER INSTALLATION

33TYPICAL BOILER INSTALLATION (CONTINUED)

34MP2Tekmar 150 ControllerTYPICAL DWH PRIORITY HEATING PACKAGE SYSTEM

35NOTES

9/04 - Printed in U.S.A.

The following defined terms and symbols are used through-out this manual to bring attention to the presence of hazardsof various risk levels, or to br

COMBUSTION AIR OR ALARM CONTACTThe control has an isolated contact that can be used aseither a combustion air damper contact or an alarm contact.This

Resetting the Rotation SequenceTo reset the rotation sequence, set the Rotate / Off DIPswitch to the Off setting for 5 seconds and then return theDIP

LO / HIORLO / LOWhen using multi-stage boilers, a selection must be maderegarding the staging order of the boiler(s). This adjustmentis made in the A

STAGE DELAYThe stage delay is the minimum time delay between the fir-ing of stages. After this delay has expired the control canfire the next stage i

BOILER PUMP OPERATIONIn certain modes of operation, the control can operate theindividual boiler pumps on each boiler in addition to the pri-mary pump