Spheros DBW 160, Installation Instructions Manual

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Electrical connections DBW 160/230/300/350
78
Item Description Remarks A B C D
A1 Heater
A2 Control module SG 1553 z
B1 Flame sensor Photoresistor, polarity inde-
pendent z
B2 Thermostat Overheat thermostattt z
B3 Thermostat Control thermostat { {
F1 Overheat fuse polarity independent z
F2 Fuse 8A Vehicle fuse DIN 72581 {
F3 Fuse 16A Vehicle fuse DIN 72581 {
F4 Fuse 8A Vehicle fuse DIN 72581
{
G Battery z
H1 Light, green Operation indication z
K1 Relay (in item A2) for isolating of the negative
terminal
K2 Relay (in item A2) for Relay K7
K3 Relay (in item A2) for heating operation
K4 Relay (in item A2) for ignition unitr
K5 Relay (in item A2) for solenoid valve
K6 Relay (in item A1) for circulating pump
K7 Relay (in item A1) for heater motor
M1 Motor Heater z
M2 Motor Circulating pump z
S1 Switch Heater on/off z
S2 Switch for circulating pump separa-
tely {
U1 Electronic ignition unit z
U2 Ignition electrodes z
W1 Wiring harness z
X1 Plug connection,
2-pin to item W1
X2 Plug connection,
2-pin to item W1
X3 Plug connection,
2-pin to item M2
Y1 Solenoid valve Polarity independent
z
A installed in the heater
B supplied loose
C only if required
D provided in vehicle
z included in standard kit
{ may be supplied depending on model
Item Description Remarks A B C D
Legend DBW 300/350