LAARS M4-LHS - Installation Manual - Manual (Page 39)

HT# 059295-00
A
M4-LHS installation and Operation Manual
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STAGE ◄ ► MENU
STAGE A SETTINGS
Mode Auto
BACK ▲ ▼ SELECT
STAGE A SETTINGS
Mode Auto
Ignition % 1%
Mod Start % 80%
Copy Settings
BACK ▲ ▼ SELECT
STAGE A MODE
Auto
Standby
Manual
Off
On
BACK ▲ ▼ SAVE
STAGE A
- IGNITION POINT -
1%
[ ]
BACK ▲ ▼ SAVE
STAGE A
MODULATION START
75%
[ ]
BACK ▲ ▼ SAVE
Staging Modulation
Button: STAGE/
The Stage menu provides adjustment for each of the individually boiler operations.
• In most installations, all active boiler adjustments are the same, but each can be configured
differently if desired.
• If the boilers are not set up properly, the M4-LHS operation may appear to be erratic.
• When the STAGE button is depressed, the Boiler A settings menu will be shown.
• Make all the appropriate settings for Boiler A (See below).
• After completing all the settings for Boiler A (See below), you have the option of copying
these settings to all other modulating boilers. Everything but the Mode -- Auto/Standby/
Manual/Off/On -- will be copied.
• Then select the option from the menu to reach the Boiler B settings
menu. Continue until all boilers have been set.
• If an Extension is connected to the M4-LHS and the stages have been set through the
Startup menu, then scrolling through stages using the and Stage> menu options will scroll through the Extension stages as well.
aLErT
To change the M4-LHS settings, the Program/Run Switch must be set to
Program. The switch is located under the Enclosure Wiring Cover for security.
The Enclosure Wiring Cover can be secured using a lock.
Modulating Boiler Stage Menu
STAGE A SETTINGS
Mode Auto
Ignition % 1%
Mod Start % 80%
Copy Settings
BACK ▲ ▼ SELECT
Sequencing Boiler Stage Menu
STAGE A SETTINGS
Mode Auto
BACK ▲ ▼ SELECT
SYSTEM
A
B
C
D
1 2
RUN PROGRAM
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3 4 5 6 7 8 9 10 11 12 13 15 14 17 16 18 20 19 21 24 23 29 25 27 26 28 32 30 31
L N
- + + T T O O RS-485 mA GND VLT
SYS A B C D PWR
CUR / VLT
A
- + +
mA GND VLT
- + +
mA GND VLT
+ +
mA
22
-
GND VLT
+
mA
TEMP
OUTDOOR
O O
TEMP
SYSTEM EXTENSION
MODULE CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
PROVE
/DHW
SHUTDOWN
/SETBACK
FOR ALL CIRCUITS
120VAC, 6A RESISTIVE
OUTPUT RATINGS:
1A PILOT DUTY, 15A TOTAL
115VAC 60Hz , 30VA MAX
INPUT RATINGS:
USE COPPER WIRE,
CLASS 1 WIRE ONLY.
CAUTION: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
/TSTAT
M4-LHS
HYBRID CONTROL
Mode
Auto, Standby, Manual, Off, On Default: Auto
Button: STAGE/Mode
• The M4-LHS only controls the modulation of boilers set to Auto or (after a delay) those
set to Standby. None of the other settings is recommended for outputs connected to active
boilers.
• Any stage without an active boiler or stage connected must be set to Off.
• The following list describes the MODE options:
STAGE A MODE
Auto
Standby
Manual
Off
On
BACK ▲ ▼ SAVE