Install Instructions
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 2012/10
15 Circuit diagrams
Fig. 79 Circuit diagram 1
SP30D Providing Domestic Priority w/ Buderus 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
Burner
Oil or Gas
1
1
On Gas Boilers G124/G234, B
1
and B2 will
be connected to the Boiler Control, 24V
NOL
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
NOL
2
L
1
1 NC
NCNO
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 MULTIPLE ZONES:
JUMPER ON
DELETE
ADD RELAY-BOARD AND WIRE IT WITH AND
H 2
C
1
2
120V AC
24V #18 Wire
L
2
2 L
2
CONNECTED TO
POWER SUPPLY
L
2
Pump-Relay-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 wiring diagram is generic in scope and does not purport to address all design, installation, or safety considerations. This diagram is for reference use by code officials, designers and
licensed installers. It is expected that installers have an adequate knowledge of accepted industry practices for the equipment, procedures and applications involved.
BUDERUS HYDRONIC SYSTEMS
DATE : 3/12/2004
FILE NAME : SP30D
DRAWN BY: Holger Hinse APPROVED BY: Dr. Lou Vorsteveld
Type: SP30D AQUASTAT GENERIC WIRING SCHEMATIC
FOR: GAS / OIL BOILER W/ L8148A OR L8148E HW AQUASTAT