15
Dual Fuel Supplemental Manual
OUTLET SENSOR (S1)
-T
-T
-T
-T
-T
-T
-T
-T
FLUE SENSOR
PRE-MIX SENSOR 2 (S14)
PRE-MIX SENSOR 2 (S12)
PRE-MIX SENSOR 1 (S13)
PRE-MIX SENSOR 1 (S11)
FLUE SENSOR (S10)
OUTLET SENSOR (S9)
1.5A EACH MAX
WARNING
L2
L1
JUNCTION BOX
TERMINAL STRIP
208V 3
O
SUPPLY
TERMINAL STRIP
208V SUPPLY "N"
NEUTRAL
INTEGRATED CONTROL
ON/OFF
SWITCH
F2
3.15 A
F4
5.0 A
SYSTEM PUMP
RELAY
BOILER PUMP
RELAY
DHW PUMP
RELAY
X1-1
X1-2
X1-4
X1-8
X2-4
SMALL BLOWER RELAY
LARGE BLOWER CONTACTOR
SMALL GAS
VALVE RELAY
LARGE GAS
VALVE RELAY
X1-6
X10-1
X10-2
X10-3
SMALL GAS
VALVE RELAY
LARGE GAS
VALVE RELAY
X10-6
X10-5
X10-4
TERMINAL STRIP
SYSTEM PUMP
CONTACTOR
BOILER PUMP
CONTACTOR
DHW PUMP
CONTACTOR
SMALL BLOWER
RELAY
LARGE BLOWER
CONTACTOR
SMALL BLOWER
LARGE BLOWER
X6-10
X13-4
X6-1
X2-5
2
1
3
BAS
2
-
1
X
1
-
1
X
X1-3
FLUE DAMPER
TRANSFORMER
1
2
3
24V
TRANSFORMER
FLUE DAMPER
X6-3
X1-12
X1-3
LWCO
BOARD
TEST
SWITCH
LWCO
PROBE
LWCO RESET
J3-6
J3-3
J2-1
J2-2
J3-5
J3-2
J3-4
X6-5
X6-15
X6-12
X13-1
X6-6
X3-3
X3-4
X3-1
X3-2
X6-11
X6-2
X6-14
INTEGRATED
CONTROL
BLOWER PROVING
SWITCH (LARGE)
BLOWER PROVING
SWITCH (SMALL)
BLOCKED FLUE
SWITCH
BLOCKED DRAIN
SWITCH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ALARM
CONTACTS
RUN-TIME
CONTACTS
TANK
THERMOSTAT
LOUVER
PROVING
24 VAC LOUVER
RELAY COIL
AUX
SWITCH 1
AUX
SWITCH 2
ENABLE
R
W
SMALL
CONNECTION BOARD
CN1-4
CN1-5
CN1-6
CN1-12
CN1-10
X6-13
X6-4
CN1-11
CN1-9
CN1-8
CN1-7
CN1-1
CN1-2
CN1-3
HIGH LIMIT
SWITCH
X1-3
X1-7
X1-10
X2-5
FLAME
SENSE 2
FLAME
SENSE 1
SPARK
GENERATOR
SPARK
ROD
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
SHIELD
SHIELD
A
B
MODBUS
OPTION
+
-
-
+
RATE
OUT
BOILER
PUMP OUT
SYSTEM RETURN
SENSOR
SYSTEM SUPPLY
SENSOR
0-10V
0-10V
TANK
SENSOR
OUTDOOR
SENSOR
+
+
-
-
0-10V
0-10V
BMS
IN
SYSTEM
PUMP IN
SHIELD
SHIELD
A
B
CASCADE
LARGE
CONNECTION BOARD
CN6-1
CN3-6
CN3-7
CN3-14
CN3-13
CN3-11
CN3-9
CN3-8
CN3-1
CN3-2
CN3-3
CN3-4
CN6-2
CN6-3
CN3-10
CN3-12
BAS
X4-
1
X4
-2
X4
-3
X6-
3
X6
-1
X6-
2
X8-20
X8-10
X7-8
X8-13
X8-14
X8-12
INTEGRATED
CONTROL
X8-5
X8-15
X7-7
X8-11
X8-6
X8-16
X8-7
X8-17
X8-18
-T
INLET SENSOR
X8-3
X8-8
X8-2
X8-4
X8-9
X7-1
X7-5
X7-2
X7-6
GROUND
X6-18
X6-9
X6-17
X6-8
X13-2
X13-3
1
4
2
5
1
4
2
5
SMALL BLOWER
LARGE BLOWER
X11
X4
X5-1
X5-7
X5-2
X5-8
X5-3
X5-9
X5-4
X5-10
X5-5
X5-41
X5-6
X5-12
HIGH VOLTAGE
LOW VOLTAGE
L3
M
OPTIONAL ITEMS
DUAL SENSOR
DISCONNECT POWER
which could result in non-repairable damage to the integrated controller or other components.
BEFORE SERVICING
CN6-2
120 VAC
connector block locations when using diagrams to troubleshoot unit.
USB
INTERFACE
1
2
3
4
100267528 REV A
X8-10
X8-1
CN3-4
PROPANE
NATURAL
PROPANE
NATURAL
CAM
SWITCH
PROPANE LIGHT
NATURAL LIGHT
NATURAL LGPS
PROPANE LGPS
CAM SWITCH
GPS2 GPS3
"X5"
BLOCK WIRING
IS MODEL
DEPENDENT
OPTIONAL
ETHERNET CABLE
E
GND
WIFI
DONGLE
RIBBON CABLE
SW1
J2
8
43
J6
J9
J17
J23
J12
J11
LG CON BRD
J8
LCD
DISPLAY
USB CABLE
OPTIONAL USB/WIFI
EXTENSION CABLE
J10
J7
BAS
CN6-1
CN6-3
24V
SINGLE HOUSING
3. Actual connector block locations may vary from thos e shown on diagrams. Refer to actual components for proper
Notes:
1. All wiring must be installed in accordance with: local, state, provincial and national code requirements per either N.E.C.
in USA or C.S.A. in Canada.
2. If any original equipment wire as supplied with the applianc e must be replaced, it must be replaced with wire having same
wire gauge (AWG) and rated for a minimum of 105°C. E xceptions: Replacement high voltage spark lead and ribbon cables
must be purchased from the factory. Use of a non-approved spark lead or ribbon cables can lead to operational problems
BOX DEPICTS
BOX DEPICTS
!
PR
3
Diagrams
(continued)
Figure 3-4 Ladder Diagram_4.0 Model
Содержание CREST 2.5
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