Circuit diagrams
15
65
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 11/2004
15 Circuit diagrams
Fig. 79
Circuit diagram 1
SP30D Pro
viding Domestic Pr
ior
ity w/ Buder
us Boilers and
Tanks
L
1
L
2
T
T
T
L
1
Aquastat L8148A Oil
or
L8148E Gas
C
1
C
2
B
1
B
2
Bur
ner
Oil or Gas
1
1
On Gas Boilers G124/G234, B
1
and B2 will
be connected to the Boiler Control, 24V
NO
L
2
L
1
L
1
1
NC
2
NC
Domestic Tank Pump
Heating Pump
NO
1
3
2
4
5
6
Tank Sensor
COOL
Heat
Set to 130
0
Setpoint
50 to 200
0
F
RW
115V AC
240V AC
NO
L
2
L
1
1
NC
NC
NO
1
3
2
4
5
6
COOL
Heat
Set to 130
0
Setpoint
50 to 200
0
F
RW
115 VAC
240 VAC
Tank Sensor
FOR MUL
TIPLE ZONES:
JUMPER ON
DELETE
ADD RELA
Y-BO
ARD AND
WIRE IT
WITH
AND
H
2
C
1
2
120V AC
24V #18
Wire
L
2
2
L
2
CONNECTED
TO
PO
WER SUPPL
Y
L
2
Pump-Rela
y-Board
L
1
L
2
L
1
L
2
L
1
L
2
Pump 1
Pump 2
Pump 3
L
1
L
2
C
2
HEATING PUMP
2
L
1
This wir
ing diag
ram is gener
ic in scope and does not pur
por
t to address all design, installation, or saf
ety consider
ations
. Thi
s diag
ram is f
or ref
erence use b
y code officials
, designers and
licensed installers
. It is e
xpected that installers ha
ve an adequate kno
wledge of accepted industr
y pr
actices f
or the equipment
, procedures and applications in
volv
ed.
B
UDER
US HYDR
ONIC SYSTEMS
D
ATE :
3/12/2004
FILE NAME :
SP30D
DRAWN BY
:
Holger Hinse
APPR
O
VED BY
:
Dr
. Lou
Vorste
veld
Type:
SP30D A
Q
U
A
ST
AT GENERIC
WIRING SCHEMATIC
FOR:
GAS / OIL BOILER
W/ L8148A OR L8148E HW A
Q
U
AST
AT
