Terminal blocks jumpers, 1700 mbtu/h, Figure 2 – LAARS NeoTherm LC NTH (Sizes 1000-1700 MBTU/h) - Installation Manual User Manual
Page 4
pg 4 of 6
H2352500B
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Litho in U.S.A. © Laars Heating Systems 1404 Document 7025B
FielD COnneCtiOnS:
• remove VAri-PriMe Cover.
• remove the VAri-PriMe control box from the packaging and
familiarize yourself with each connection point.
1700 MBTU/h
and
1700 MBTU/h
1000 MBTU/h
• Locate the Blue and Black wires coming from
the top gas valve. Trace the wires to the spade
connection with the blue/white wire. Unplug the
connectors and insert the blue wire and connectors
from the VAri-PriMe unit.
• Locate the Blue and Black wires coming from the
bottom gas valve. Trace thse wires to the spade
connection with the Blue/White wire. Unplug
the connectors and insert the Blue/red wire and
connectors from the VAri-PriMe unit.
Photo 6
FIRMWARE SETTINGS
P = 20
I = 10
D = 0
ANTI RESET WINDUP = 600
CONTROL ERROR = 70
10K
R14 C12 R13 C11
-2
4V
INLET
SENSOR
1
2
3
4
1
2
3
4
1
2
3
2
3
4
4
1
1
2
3
2
4
6
8
1
3
5
7
1
3
5
7
+2
4V
6
8
SENSOR
2
4
10K OUTLET
JP5
TB1
7&8 = F
1&2 = SPARE JUMPER
TB2
TB5
TB4
TB6
PCB
DIGITIZED
P/N E2345200
LED1
JP1
7&8 = (Delta T) 30 DEG F / 16 DEG C
TB3
JP4
JP2
1&2 = (Delta T) 15 DEG F / 8 DEG C
3&4 = (Delta T) 20 DEG F / 10 DEG C
5&6 = (Delta T) 25 DEG F / 13 DEG C
JP3
N/C
COM
4-20MA(-)
4-20MA(+)
0-10VDC(+)
0-10VDC(-)
N/O
Figure 2
Terminal
Blocks
Jumpers