LAARS M4-Ext - Installation Manual - Manual (Page 16)

16
STARTUP SETTiNgS
PROgRAM CHANgE SWiTCH SETTiNg
To be able to change the M4-CNC 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.
SYSTEM
A
B
C
D
Full Modulation Sequencing Control
1 2
RUN PROGRAM
FOR ALL CIRCUITS
120VAC, 6A RESISTIVE
OUTPUT RATINGS:
1A PILOT DUTY, 15A TOTAL
115VAC 60Hz , 12VA MAX
INPUT RATINGS:
USE COPPER CONDUCTORS ONLY
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3 4 5 6 7 8 9 10 11 12 13 15 14 17 16 18 22 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 GND VLT
+
mA
TEMP
OUTDOOR
O O
TEMP
SYSTEM EXTENSION
MODULE CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
CAUTION : RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
to de-energize the equipment before servicing.
PROVE
/DHW
SHUTDOWN
/TSTAT
/SETBACK
ENCLOSED
ENERGY
MANAGEMENT
EQUIPMENT
99RA
Mini-MOD
STARTUP SEqUENCE
Button: MENU/
• When powered, the M4-CNC performs a self diagnostics-test on its components.
• On the first power up, the System Startup screen will appear after the initialization is
complete. If it doesn’t, the M4-CNC has already been configured.
• The System Startup menu sets the main parameters that relate to the heating application.
These settings must be set by the installer.
-------- SETTINGS ----
Season Winter
System Target 140 o F
BACK ▲ ▼ SELECT
SENSOR TYPE
Reset °F, Reset °C, EMS °F, EMS °C Default: Reset °F
Button: MENU//..../Sensor Type
• The same Laars temperature sensor can display in either °F or °C.
• If any of the Reset options is selected, the control will use outdoor reset to calculate the
Target Temperature.
• If any of the EMS options is selected, the control will require the use XSIG (E2325400).
• Selecting any of the °F options will display all temperatures in degrees Fahrenheit.
• Selecting any of the °C options will display all temperatures in degrees Celsius.
--- SENSOR TYPE ---
Reset o F
Reset o C
BACK ▲ ▼ SAVE
Above the Switch Set Point
Non-Condensing are the Lead Group
Condensing are the Lag Group
Target Switch
Set Point
= 120°F
Below the Switch Set Point
Condensing are the Lead Group
Non-Condensing are the Lag Group
120°F
140°F
100°F
SWITCH MODE = Target Temperature
SYSTEM
A
B
C
D Condensing / Non-Condensing Control
1 2
RUN PROGRAM
FOR ALL CIRCUITS 120VAC, 6A RESISTIVE OUTPUT RATINGS: 1A PILOT DUTY, 15A TOTAL 115VAC 60Hz , 12VA MAX INPUT RATINGS: USE COPPER CONDUCTORS ONLY
DO NOT APPLY ANY VOLTAGE TO INPUT TERMINALS 3 4 5 6 7 8 9 10 11 12 13 15 14 17 16 18 22 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 GND VLT + mA TEMP OUTDOOR O O TEMP SYSTEM EXTENSION MODULE CUR / VLT B CUR / VLT C CUR / VLT D
CAUTION: RISK OF ELECTRIC SHOCK More than one disconnect switch may be required to de-energize the equipment before servicing.
PROVE /DHW SHUTDOWN /TSTAT /SETBACK
OD= 25oF SYS= 145oF <> B 100% 52%
COND COND
NON-
COND
NON-
COND
NON-
COND
NON-
COND
COND COND
SYSTEM
A
B
C
D Condensing / Non-Condensing Control
1 2 RUN PROGRAM
FOR ALL CIRCUITS 120VAC, 6A RESISTIVE OUTPUT RATINGS: 1A PILOT DUTY, 15A TOTAL 115VAC 60Hz , 12VA MAX INPUT RATINGS: USE COPPER CONDUCTORS ONLY
DO NOT APPLY ANY VOLTAGE TO INPUT TERMINALS 3 4 5 6 7 8 9 10 11 12 13 15 14 17 16 18 22 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 GND VLT + mA TEMP OUTDOOR O O TEMP SYSTEM EXTENSION MODULE CUR / VLT B CUR / VLT C CUR / VLT D
CAUTION: RISK OF ELECTRIC SHOCK More than one disconnect switch may be required to de-energize the equipment before servicing.
PROVE /DHW SHUTDOWN /TSTAT /SETBACK
OD= 25oF SYS= 145oF <> B 100% 52%
Target
Temp
Above the Switch Set Point
Condensing are the Lead Group
Non-Condensing are the Lag Group
Outdoor Switch
Set Point
= 30°F
Below the Switch Set Point
Non-Condensing are the Lead Group
Condensing are the Lag Group
30°F
50°F
10°F
SWITCH MODE = Outdoor Temperature
COND COND
NON-
COND
NON-
COND
NON-
COND
NON-
COND
COND COND
SYSTEM
A
B
C
D Condensing / Non-Condensing Control
1 2
RUN PROGRAM
FOR ALL CIRCUITS 120VAC, 6A RESISTIVE OUTPUT RATINGS: 1A PILOT DUTY, 15A TOTAL 115VAC 60Hz , 12VA MAX INPUT RATINGS: USE COPPER CONDUCTORS ONLY
DO NOT APPLY ANY VOLTAGE TO INPUT TERMINALS 3 4 5 6 7 8 9 10 11 12 13 15 14 17 16 18 22 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 GND VLT + mA TEMP OUTDOOR O O TEMP SYSTEM EXTENSION MODULE CUR / VLT B CUR / VLT C CUR / VLT D
CAUTION: RISK OF ELECTRIC SHOCK More than one disconnect switch may be required to de-energize the equipment before servicing.
PROVE /DHW SHUTDOWN /TSTAT /SETBACK
OD= 25oF SYS= 145oF <> B 100% 52%
SYSTEM
A
B
C
D Condensing / Non-Condensing Control
1 2 RUN PROGRAM
FOR ALL CIRCUITS 120VAC, 6A RESISTIVE OUTPUT RATINGS: 1A PILOT DUTY, 15A TOTAL 115VAC 60Hz , 12VA MAX INPUT RATINGS: USE COPPER CONDUCTORS ONLY
DO NOT APPLY ANY VOLTAGE TO INPUT TERMINALS 3 4 5 6 7 8 9 10 11 12 13 15 14 17 16 18 22 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 GND VLT + mA TEMP OUTDOOR O O TEMP SYSTEM EXTENSION MODULE CUR / VLT B CUR / VLT C CUR / VLT D
CAUTION: RISK OF ELECTRIC SHOCK More than one disconnect switch may be required to de-energize the equipment before servicing.
PROVE /DHW SHUTDOWN /TSTAT /SETBACK
OD= 25oF SYS= 145oF <> B 100% 52%
Outdoor
Temp
SWiTCH SET POiNT
Adjustable from 0ºF/ -18ºC to 200ºF/ 94ºC Default: 150ºF/ 66ºC
Button: MENU//..../Sensor Type/Switch Setpoint
• It is the Target Temperature Set Point at which the M4-CNC will switch between
Condensing Boiler Group and Non-Condensing Boiler Group.
• The Condensing Boiler Group will be the lead group when the Target Temperature is below
the Switch Set Point. However, the Non-Condensing Group will be the lead group when the
Target Temperature is above the Switch Set Point.
- SWITCH SETPOINT -
150 o F
[ ]
BACK ▲ ▼ SAVE
LAARS Heating Systems
HT# 059104-00 B