Unical Lattner ALKON 50 - Wiring Diagram for ALKON 70

33
Instructions for the installer
WIRING DIAGRAM for ALKON 70
21
ORANGE +
BLACK (-)
BROWN (PWM)
BLUE (TACHO)
45
BLUE (N)
12
BROWN (L1)
3
RIL./REG.
ALIM.
120V
SRR
SR
BROWN
BROWN
BLUE
YELL/GREEN
E. RIV.
WHITE
BLACK
DK
BROWN
BLUE
BLUE
BLUE
BROWN
Fs1
BLACK
BLUE
BROWN
ORANGE
P
BLUE
BROWN
YELL-GREEN
GREEN
GREEN
WHITE
WHITE
WHITE
BROWN
BLUE
BROWN
IG
VM
L1
N
120 V - 60 Hz
BLUE - N BROWN - L
E. ACC
TR. ACC
BLUE
BROWN
RED
YEL
/
GREEN
VG
YEL/GREEN
TL
TF
B
L
A
C
K
1 (NC)
BLUE
PF
BROWN
3 ( C ) WHITE
BLUE
BLUE
CDS-1
YELL-GREEN
BROWN BLUE
P
BOILER
SYSTEM
P SYST. = Pump system
Note: Any accessories shown in the drawn
are not available for this model of boiler
= Minimum water pressure switch
= Ignition electrode
= Detection electrode
= Power switch On-Off
= Pump boiler
= CH sensor
= CH return sensor
= Limit thermostat
= Smoke thermostat (only pre-arran
g
ement)
= Ignition transformer
= Gas valve
= Modulating fan detection/adjustment
DK
E. ACC
E. RIV.
IG
P
SR
SRR
TL
TF
TR.ACC
VG
VM
CSD - 1
Prearrangement for the
connection of the
additional safety devices
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation.