Appendices
62
Instruction manual DR-LA
A
is
1.2
Electrical diagram
DR-LA
1.2.1
Electrical diagram DR-LA 30 through 95 and 110 (natural gas)
TERMINAL STRIP CONNECTIONS
:
A
Earth
N
Neutral
L1
Phase
L2
Phase input of controller
L3
Phase input of combustion products discharge safety device
L
Phase input safety ciruit of thermostat circuit
NO Normally open
P
PVC power supply
NC Normally closed
PARTS:
A
Burner control
N
Neutral
A
Earth
L
'Phase input of controller
L
"Phase output
TH
Phase input of thermostat circuit
GV1
Phase output of gas control
MAX
Phase input of safety thermostat
LG
Phase input of hot surface igniter
I
Ionisatiion detection = output
NO
Normally open
P
Phase input alarm
NC
Normally closed
F1
Fuse (T5A)
R1
Relay (Max. 250V, 10A)
B
Frost thermostat
C
Control thermostat
D
On/Off switch
E
Safety thermostat
F
High-limit thermostat
G
Gas valve
H
Hot surface igniter
J
Flame probe
K
Error detection
L
On detection
M
Reset button
N
Combustion products discharge safety device
O
Relay (Max. 250V, 10A)
OPTIONAL PARTS
:
P
Main switch control
Q
potentiostat (for power anodes)
R
Week timer
Figure 1.1
Electrical diagram DR-LA 30 through 95 and 110 (natural gas)
4
11
F
E
4
11
1
D
3
3
4
12
12
1
4
1
2
3
1
4
2
1
2
1
4
4
4
3
3
3
4
3
4
4
11
B
1
C
4
3
12
4
3
11
12
4
N
T
V
L’ L" N H N 1
G
HOT
L
A
G
N
X
FACE
SUR-
M
I
4
FUSE
F1
N
4
2
1
4
3
4
4
4
4
230V AC
L
50Hz
N
N
N
O
C
P
A
4
H
G
J
P
4
1
4
2
2
2
N
N
L
L
I
N
N
R
K
L
M
L
L
R1
6
5
4
3
2
1
9
8
7
10
L
N
2
L
3
L
24
19 20 21 22 23
30
27
25 26
28 29
1
NO
P
NC
4 4 4
18
17
2
N
2
Q
1
2
1
3
2
1
5
4
4
12
11
2
4
4
5
1
2
4
4
4
3
O
4
4
4
4
NO
NC
P
4
I
0
4
4
4
16
15
14
13
L
L
L
2
N
1
1
1
1
3
L
4
4
L
3 = yel./green
1 = brown
2 = blue
4 = black
5 = white
