LAARS SC 12 - Install and Operating Manual - Manual

Laars Sequencing Controls
Document 4200
LINE
NEUT
OUTPUT 8
OUTPUT 9
OUTPUT 7
OUTPUT 10
OUTPUT 11
OUTPUT 12
INCREMENT
AUTO
OFF
LEAD STAGE
ROTATION
SELECT
SETTING
UP
DOWN
INPUTS
1 2 3 4 5 6 7 8 9 10
SAFETY
GROUND
MUST BE
CONNECTED
11 12 Sensor Com Shield + Sensor Com Dry Contact Only Dry Contact Only
TEMP SHUTDOWN /SETBACK
PROVE
/DHW
SYSTEM
Output 7
OFF
AUTO
ON
Output 8
OFF
AUTO
ON
Output 9
OFF
AUTO
ON
Output 10
OFF
AUTO
ON
Output 11
OFF
AUTO
ON
Output 12
OFF
AUTO
ON
OFF
AUTO
ON
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 5
OUTPUT 6
Output 1
OFF
AUTO
ON
Output 2
OFF
AUTO
ON
Output 3
OFF
AUTO
ON
Output 4
OFF
AUTO
ON
Output 5
OFF
AUTO
ON
Output 6
OFF
AUTO
ON
System
LEAD
OUTPUT ON
4-20 ma OUTDOOR
SC
Non-Modulating
Model SC6, SC6P
and SC 12
Output panel to Sequence
up to 12 individual
stages with lead-lag and
manual override capabilities
Installation and Operation Instructions
FOR YOUR SAFETY:
This product must be installed and serviced by a
professional service technician, qualifi ed in hot water heater/boiler controls
installation and maintenance. This manual is intended for anyone who will
install, operate or maintain the control system. Before you begin installation
and operation of this control, it is important that you thoroughly review this
manual. Improper installation and operation could result in damage to
equipment and possibly even personal injury. Laars Sequencing Controls are
not intended for use as operation safety limit controls. Another control, which
is intended and certifi ed as a high limit control, must be in the boiler/heater
control circuit.