Press to

-- OPERATING MODE --

>NORMAL PROCESS

-- OPERATING MODE --

NORMAL

>PROCESS

-- OPERATING MODE --

NORMAL

>PROCESS

ADJUST

PRESS TO SELECT

ADJUST

PRESS TO SELECT

ADJUST

PRESS TO SELECT

Press to

select

Normal

or turn

to scroll

down

Press to

select

Process

SELECTING THE OPERATING MODE

Default - Normal

Most heating applications do not experience rapid changes in system temperature. For these systems, it is best to adjust the modulation based on the rate of system rise or fall. This PID type of algorithm will help to prevent short cycling of the stages, reduce thermal stress on the system, and maintain an accurate system temperature. If your equipment is of this type, select Normal.

Systems that run for process may experience large changes in load almost instantaneously. In Process mode, the Harmony will react immediately to load changes. Large load changes may cause stages to be short cycled, as the Harmony can enable and disable stages within seconds.

After making this selection, the main display screen will be displayed.

SYSTEM STARTUP

13

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Image 13
Lochinvar Harmony operation manual SELECTING THE OPERATING MODE Default - Normal, System Startup, Press to select Process