Install and Operating Manual User guide

Mascot II Boilers and Water Heaters
Page 25
Figure 22. Wiring Diagram.
BLOCKED
VENT
SWITCH
COM
NC
POWER PLUG 115V
BLOWER
3 1
5 1
G
POWER SWITCH
Y
24V 115V
W
BK
Y
TRANSFORMER
115 VAC INPUT
24 VAC OUTPUT
1 2
DOMESTIC
EMP. SENSOR
1 2
INLET TEMP.
SENSOR
C
I
R
C
U
I
T
B
R
E
A
K
E
R
115V "HOT"
10A
WIRE GUIDE 24V = 22 AWG 24V = 18 AWG 115V = 18 AWG COLOR GUIDE BK - BLACK W - WHITE R - RED Y - YELLOW BL - BLUE BR - BROWN O - ORANGE G - GREEN P - PURPLE GR - GRAY
115 V "HOT"
115 V "NEUTRAL"
115 V "GROUND"
PUMP
CIRCUIT
BREAKER
24V "HOT"
2 AMP
3 WAY
WATER FLOW
VALVE
31 42
OUTLET
TEMP.
SENSOR
31 42
EXHAUST
STACK
TEMP.
SENSOR
24V
COM
+24V
GAS
VALVE
NO
COM
WATER PRESSURE
SWITCH
1 2 3
LOCAL DISPLAY
NC
2
34
56
7
8
1
NO COM
H2345500revA
COM
N0
FAN PROVING
SWITCH
LMC ONLY (LMH: USE JUMPER B/W 7 & 8)
Y
465
3
5
4
6
DPDT
RELAY
G
O
LMC ONLY (LMH: USE A-STAT FOR INDIRECT)
BK
RR
W
Y
Y
R
G
LWCO
SWITCH
W BK W
BK
1 2 345 6 7 89
10
11
12
13 14
SPARK IGNITOR
FLAME SENSOR
SYSTEM
SENSOR
ALARM
T-T OR INTERLOCK
ANALOG INPUT +
OUTDOOR TEMP.
SENSOR
ANALOG INPUT -
OUTDOOR TEMP.
SENSOR
SYSTEM PUMP
BK
BK
W
W
G
G
R
R
R
Y
Y
Y
R
G
R
Y
BR
R
O
P
BL
O
BR
Y
BL
BL
BR
YBRBLO
BR
Y
Y
P
P
PO
BLBR
GR
GR
GR
P P
GR
GR
Y BR
BL
R
BK
W
YY
BR
R
P
BR BL
FLOW SWITCH
R
BK
W
ILLUM
Y
J4A
J8A
J9
J2
J1
J3
4 3
2 1
1 4
23
65
A A A
B B B
C C
R
MB1
MB2
ECOM
HV SPARK
J10
CONTROL MODULE
12
123
78
234
56
7812 3 4 5 6
12 3 45 4 566 123
Y
J8B
1 TERM STRIP
R
G
BK
1
3142 56
BK BK
BRBL
165
43
2
J4B
Y
DRY
CONTACT
7A
GR
R
C
(OPTIONAL)
R20729
O
BLOCKED
VENT
SWITCH
COM
NC
POWER PLUG 115V
BLOWER
3 1
5 1
G
POWER SWITCH
Y
24V 115V
W
BK
Y
TRANSFORMER
115 VAC INPUT
24 VAC OUTPUT
1 2
DOMESTIC
EMP. SENSOR
1 2
INLET TEMP.
SENSOR
C
I
R
C
U
I
T
B
R
E
A
K
E
R
115V "HOT"
10A
WIRE GUIDE 24V = 22 AWG 24V = 18 AWG 115V = 18 AWG COLOR GUIDE BK - BLACK W - WHITE R - RED Y - YELLOW BL - BLUE BR - BROWN O - ORANGE G - GREEN P - PURPLE GR - GRAY
115 V "HOT"
115 V "NEUTRAL"
115 V "GROUND"
PUMP
CIRCUIT
BREAKER
24V "HOT"
2 AMP
3 WAY
WATER FLOW
VALVE
31 42
OUTLET
TEMP.
SENSOR
31 42
EXHAUST
STACK
TEMP.
SENSOR
24V
COM
+24V
GAS
VALVE
NO
COM
WATER PRESSURE
SWITCH
1 2 3
LOCAL DISPLAY
NC
2
34
56
7
8
1
NO COM
H2345500revA
COM
N0
FAN PROVING
SWITCH
LMC ONLY (LMH: USE JUMPER B/W 7 & 8)
Y
465
3
5
4
6
DPDT
RELAY
G
O
LMC ONLY (LMH: USE A-STAT FOR INDIRECT)
BK
RR
W
Y
Y
R
G
LWCO
SWITCH
W BK W
BK
1 2 345 6 7 89
10
11
12
13 14
SPARK IGNITOR
FLAME SENSOR
SYSTEM
SENSOR
ALARM
T-T OR INTERLOCK
ANALOG INPUT +
OUTDOOR TEMP.
SENSOR
ANALOG INPUT -
OUTDOOR TEMP.
SENSOR
SYSTEM PUMP
BK
BK
W
W
G
G
R
R
R
Y
Y
Y
R
G
R
Y
BR
R
O
P
BL
O
BR
Y
BL
BL
BR
YBRBLO
BR
Y
Y
P
P
PO
BLBR
GR
GR
GR
P P
GR
GR
Y BR
BL
R
BK
W
YY
BR
R
P
BR BL
FLOW SWITCH
R
BK
W
ILLUM
Y
J4A
J8A
J9
J2
J1
J3
4 3
2 1
1 4
23
65
A A A
B B B
C C
R
MB1
MB2
ECOM
HV SPARK
J10
CONTROL MODULE
12
123
78
234
56
7812 3 4 5 6
12 3 45 4 566 123
Y
J8B
1 TERM STRIP
R
G
BK
1
3142 56
BK BK
BRBL
165
43
2
J4B
Y
DRY
CONTACT
7A
GR
R
C
(OPTIONAL)
R20729
O