Lochinvar CREST 102 Series Supplemental Manual Download Page 18

        

Dual Fuel Supplemental Manual

3  

Diagrams   

Figure 3-7 

Ladder Diagram_6001 Model

JUNCTION BOX

TERMINAL STRIP

480V 3  SUPPLY

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

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

BLOWER

CONTACTOR

BLOWER

X6-10

X13-4

X6-1

X2-5

BAS 

(AS APPLICABLE)

X1-1

X1-2

X1-3

FLUE DAMPER

TRANSFORMER

M

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

OPTIONAL

ETHERNET CABLE

X1-3

X1-7

X1-10

X2-5

FLAME

SENSE 1

FLAME

SENSE 2

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

BAS

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

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

-T

-T

-T

-T

-T

-T

INLET SENSOR

OUTLET SENSOR (S9)

OUTLET SENSOR (S1)

FLUE SENSOR

FLUE SENSOR (S10)

PRE-MIX SENSOR 1 (S11)

PRE-MIX SENSOR 1 (S13)

X8-3

X8-8

X8-2

X8-4

X8-9

X7-1

X7-5

GROUND

X6-18

X6-9

X6-17

X6-8

1

4

2

5

  BLOWER

E

GND

1.5A EACH MAX

X11

WIFI

DONGLE

X4

BOX DEPICTS

OPTIONAL ITEMS

BOX DEPICTS

DUAL SENSOR

SINGLE HOUSING

HIGH VOLTAGE

LOW VOLTAGE

120 VAC

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 appliance must be replaced, it must be replaced with wire having same

 wire gauge (AWG) and rated for a minimum of 105°C.   Exceptions:  Replacement high voltage spark lead and 

shielded cables

 must be purchased from the factory.  Use of a non-approved spark lead or 

shielded cables can lead to operational problems

 which could result in non-repairable damage to the integrated controller or other components.

3. Actual connector block locations may vary from those shown on diagrams.  Refer to actual components for proper

 connector block locations when using diagrams to troubleshoot unit.

USB

INTERFACE

L1 L2 L3

1
2
3

4

LADDER DIAGRAM

100340982 REV A

X8-10

X8-1

CN3-4

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

CN6-2

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

CN1-4

CN1-5

CN1-6

CN1-12

CN1-10

CN1-11

CN1-9

CN1-8

CN1-7

CN1-2

CN1-3

HIGH LIMIT

SWITCH

SMALL

CONNECTION BOARD

X13-1

X6-6

X3-3

X3-4

X3-1

X3-2

X6-11

X6-2

X6-14

INTEGRATED

CONTROL

BLOCKED FLUE

SWITCH

BLOCKED DRAIN

SWITCH

X6-4

X5-1

X5-7

X5-2

X5-8

X5-3

X5-9

X5-4

X5-10

X5-5

X5-41

X5-6

X5-12

"X5"

BLOCK WIRING

IS MODEL 

DEPENDANT

CN1-1

X6-5

X6-15

X6-12

POC

X6-13

AIR VALVE

CN-1

CN-4

CN-2

M

480V

TRANSFORMER

X6-1

X2-5

R3

AIR VALVE

PRESSURE SWITCH

X8-19

R3

AIR VALVE POSITION

RP

SERVICE OUTLET

BAS

BOARD

(AS APPLICABLE)

SHIELDED CABLE FROM X4

TO J12 OR J23 AS APPLICABLE

O

CAM SWITCH

CAM SWITCH

LARGE

NATURAL

VALVE

LARGE

NATURAL

VALVE

SMALL

NATURAL

VALVE

SMALL

NATURAL

VALVE

CAM SWITCH

P.O.C. VALVE

P.O.C. VALVE

PROPANE LIGHT

NATURAL LIGHT

CAM

 SWITCH

PROPANE HGPS

NATURAL HGPS

CAM

 SWITCH

PROPANE LGPS

PROPANE LGPS

CAM

 SWITCH

18

Summary of Contents for CREST 102 Series

Page 1: ...ith the Crest Installation and Operation Manual and the Crest Service Manual before installing Perform steps in the order given Failure to comply could result in severe personal injury death or substa...

Page 2: ...avoided may result in minor or moderate injury CAUTION used without the safety alert symbol indicates a potentially hazardous situation which if not avoided may result in property damage NOTICE indic...

Page 3: ...ernal to the appliance Do not use this boiler if any part has been under water The possible damage to a flooded appliance can be extensive and present numerous safety hazards Any appliance that has be...

Page 4: ...re powered and combustion air is flowing 7 Small propane valve Valve 1 Propane The small propane gas valve senses the negative pressure created by the blowers allowing gas to flow only if the gas valv...

Page 5: ...ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup Ratings are based on a piping and pickup...

Page 6: ...r proper gas pipe sizing for propane Ensure that the high gas pressure regulator is at least 10 feet 3 m upstream of the appliance NOTICE The gas inlet size has been designed to allow the minimum of 1...

Page 7: ...s used it must be a minimum of 10 feet 3 m from the Crest boiler It is very important that the gas line is properly purged by the gas supplier or utility company Failure to properly purge the lines or...

Page 8: ...less than 4 inches w c 99 kPa NATURAL or 8 inches w c 1 99 kPa PROPANE If none of the above corrects the problem refer to the Troubleshooting Section of the Crest Service Manual Check system and boile...

Page 9: ...inspect the appliance and to replace any part of the control system and any gas control which has been under water OPERATING INSTRUCTIONS 1 STOP Read the safety information above on this label 2 Set...

Page 10: ...elect Set Gas Valve 1 High 7 Once the boiler has modulated up to rate measure the combustion The values should be in the range listed in Table 2A below CO levels should be less than 200 ppm for a prop...

Page 11: ...valve for the one in use Figure 2 3 Shutoff Valves NATURAL SHUTOFF VALVE PROPANE SHUTOFF VALVE DIR 2000508189 5 Turn the main power ON 6 Using the Touch Screen accept the appropriate personality ident...

Page 12: ...PTION RATE OUT BOILER PUMP OUT SENSOR SENSOR TANK SENSOR OUTDOOR SENSOR BMS IN PUMP IN SHIELD SHIELD A B CASCADE LARGE CONNECTION BOARD BAS BOARD INTEGRATED CONTROL GROUND X11 LCD DISPLAY BOX DEPICTS...

Page 13: ...R W BR L N GND 120V ON OFF SWITCH GND CAM SWITCH BK W PR T OR OR BL R BL G BLOWER R BK W T BK TRANSITION FLAME SENSE MAIN FLAME SENSE SPARK GENERATOR SPARK ROD FLUE DAMPER TRANSFORMER FLUE DAMPER TRA...

Page 14: ...SOR SINGLE HOUSING HIGH VOLTAGE LOW VOLTAGE 120 VAC 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 Ca...

Page 15: ...10V 0 10V BMS IN SYSTEM PUMP IN SHIELD A B CASCADE R R R O R O L B K B R B R Y BL HIGH LIMIT SWITCH R R X6 1 X6 2 X6 3 Y G R R P BAS BOARD AS APPLICABLE L B R L B R R B W R O W R O P W L B K B K B Y...

Page 16: ...GE LOW VOLTAGE 120 VAC 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 equipm...

Page 17: ...R R R O R O L B K B R B R Y BL HIGH LIMIT SWITCH R R X6 1 X6 2 X6 3 Y G R R P L B R L B R R B W R O W R O P W L B K B K B Y J3 5 J3 4 J3 6 LWCO BOARD J3 3 J3 2 J2 1 J2 2 X6 3 R O K B R O K B R O TEST...

Page 18: ...h 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 appliance must be replaced it must be replaced...

Page 19: ...X6 2 X6 3 Y G R R P L B R L B R R B W R O W R O P W L B K B K B Y J3 5 J3 4 J3 6 LWCO BOARD J3 3 J3 2 J2 1 J2 2 X6 3 R O K B R O K B R O TEST SWITCH LWCO PROBE R O R O LWCO RESET X6 5 R B X13 1 BLOCK...

Page 20: ...the Check Flame and Combustion Section on page 10 along with updates to the wiring and ladder diagrams Revision F PCP 3000033824 CN 500022616 reflects an update to the ratings table Revision G PCP 300...

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