Concord ESi -
Installation and Servicing
31
INSTALLATION
44 ELECTRICAL DIAGRAMS
PRINCIPAL DIAGRAM
FA
3
2
TI
1
4
CO
7
1
6
5
2
CCE
1
2
5
4
2
3
PSG
P
COM
NC
NO
SCS
1
2
BPR-
VA
1
1a
2b
2a
7
SPL1
4
8
1
2
6
ZB
1
1a
VB2
1a
1b
VB1
1a
1b
5
7
CCE
6
B1
1
4
7
SPL4
SPL5
BA
1
BA
2
CCE
VS
3
2
1
5
4
3
7
5
10
1
2
X1
X2
X3
TA
F
B1
5
6
8
9
VP
VG
V
A
9
8
A
SPL3
SI
TA
L
N
J1
2
J1
1
J1
3
J1
7
J1
8
J1
11
J1
10
CS
A
lim
230 V
-50H
z
LLLL
NNNN
R
L_B
1
LLLL
NNNN
R
L_P
A
R
L_B
2
J1
5
S EC
S
°
C
11112
222
S C
H
°
C
11112
222
J1
4
VA
LLLL
NNNN
J1
6
J1
9
LLLL
NNNN
RL
_
PEC
S
TA
M
A
A
T A
+-
1
1a
2
2a
ZG
DJ4A
11
a
TS
1
2
3
ZT
ZT
1
1b
1a
2
2b
2a
AU
TO
AU
TO
AU
TO
AU
TO
åååå
TES
T
STB
TES
T
STB
AU
TO
AU
TO
AU
TO
AU
TO
åååå
ZP
11
a
J2
6
J2
7
J2
4
J2
2
J2
1
J2
3
J3
1
J3
2
J3
3
J2
5
J3
4
h
CH1
h
CH2
TC
H
1
2
A
HEATING PUMP CIRCUIT A
LOAD PUMP
BURNER 1ST STAGE
CONNECTING BOARD
BURNER RESET BUTTON ALARM INDICATOR
LEAK PROOFING SYSTEM
HOUR RUN METER 1, 2 STAGE
FLUE DAMPER
SAFETY CONTACT
CIRCUIT BREAKER
EMI SUPPRESSOR
PRINTED CIRCUIT BOARD PLUG
GAS PRESSOSTAT
BURNER 1ST STAGE CONTROL RELAY
IGNITION VALVE
ALARM INDICATOR
ON/OFF INDICATOR 1ST STAGE
ON/OFF INDICATOR 2ND STAGE
GAS VALVE
MAIN GAS VALVE
SAFETY VALVE
BRIDGE CONNECTOR
BURNER SWITCH
MAIN SWITCH
PUMP SWITCH
TEST SWITCH
V
VA
VB1
VB2
VG
VP
VS
X1,X2,X3
ZB
ZG
ZP
ZT
B1
BA
BPR-VA
CCE
CH 1,2
CO
CS
DJ4A
FA
J-
PSG
RL B1
BURNER 2ND STAGE CONTROL RELAY
HEATING PUMP CONTROL RELAY
LOAD PUMP CONTROL RELAY
BOILER SENSOR
DOMESTIC HOT WATER SENSOR
SAFETY CONTROL BOX
IONISATION PROBE
ELECTRIC ANODE
IGNITION TRANSFORMER
BLOCKED VENT SHUT OFF SYSTEM
ROOM THERMOSTAT A
BOILER THERMOSTAT
ISOLATING TRANSFORMER
SAFETY THERMOSTAT
RL B2
RL PA
RL ECS
S CH
S ECS
SCS
SI
T A
TA
TAF
TAM A
TCH
TI
TS
con9064
INST
ALLA
TION