Lochinvar Harmony - Manual (Page 22)

22
STAGE SETTINGS
INDIVIDUAL STAGE ADJUSTMENTS
THE STAGE MENU
• In most installations, all Stage adjustments are the same, but each of
the four output Stages can be configured differently if desired.
• If the stages are not set up properly, the Harmony operation may
appear to be erratic.
• From the main display, press the STAGE button and release it.
• The Stage A Settings menu will be shown.
• Make all the appropriate settings for Stage A as described below
and on the following two pages.
• After completing all the settings for Stage A, you have the option of
copying these settings to all other Stages. Everything but the Mode
-- Auto/Standby/Manual/Off/On -- will be copied.
• Then press the STAGE button to bring up the Stage B Settings
menu and make all the settings. Continue until all four stages have
been set.
• To move around the Stage Menus more easily, see pg. 29.
MODE Default - OFF
Auto/Standby/Manual/Off/On
• The Harmony only controls the modulation of Stages set to Auto or
(after a delay) those set to Standby. None of the other settings are
recommended for output Stages connected to active units.
• Any Stage without an active unit connected, and/or without an
output relay must be set to Off.
• The following list describes the MODE options:
Auto - The Harmony will control the Stage's operation to maintain
the Set Point. Only Stages set to Auto can be Lead Stages.
Standby - Standby Stages can only be activated when all Stages in
Auto have been at 100% modulation for a selectable period of
time (see pg. 14). Standby is generally used when an older or less
efficient unit is available, but is not desired to run except under
extreme load conditions. A Standby Stage CAN NOT be a Lead
Stage.
Manual - The Manual Mode should only be used when testing a
Stage. Manual overrides the System Prove input (see pg. 6). The
exact percent of modulation for a Stage can be set with the
Manual mode. Once selected, the unit will immediately turn on
and be modulated to the selected percentage.
Off - Any output Stage A through D without a relay, or not con-
nected to a physical unit should be set to Off. The Off Mode can
also be used to disable units which are being serviced.
On- The On Mode should only be used when testing a Stage. The
On Mode overrides the System Prove input (see pg. 6). Once
selected as On the Stage will immediately turn on and be modu-
lated to 100%.
Press
- STAGE A SETTINGS -
>Mode
Ignition %
Mod Start %
Temp
<A> B C D
OFF OFF OFF OFF
After completing all
settings for Stage A -
Select Stages B, C, and D
STAGE
Press
STAGE
- STAGE B SETTINGS -
>Mode
Ignition %
Mod Start %
IMPORTANT: When initializing the panel,
the MODE for all four Stages
MUST BE SET
- STAGE SETTINGS -
>Mode
Ignition %
Mod Start %
--- STAGE MODE ---
Manual
>Off
On
--- STAGE MODE ---
Auto
Standby
Manual
Off
On
--- STAGE MODE ---
>Auto
Standby
Manual
--- STAGE MODE ---
>Auto
Standby
Manual
PRESS TO SELECT
ADJUST
Press to
show
Mode
PRESS TO SELECT
ADJUST
Press to
select
Off
PRESS TO SELECT
ADJUST
or turn
to scroll
down
PRESS TO SELECT
ADJUST
Press to
select
new
All Mode
Options
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