Crestron electronic 2.5, 3.5, 1.5 service manual Diagrams, Integrated Control

Installation & Operation Manual

12 Diagrams

Figure 12-1Ladder Diagram

120VAC			JUNCTION BOX			NEUTRAL
TERMINAL STRIP					TERMINAL STRIP
120V SUPPLY "L"					120V SUPPLY "N"
	INTEGRATED CONTROL
				X1-3	1.5A EACH MAX
ON/OFF
SWITCH				X1-12	TERMINAL STRIP
X1-6	F2	F4		X1-1
	3.15 A	5.0 A	SYSTEM PUMP		SYSTEM PUMP
			RELAY	X1-2	CONTACTOR
			BOILER PUMP		BOLIER PUMP
			RELAY	X1-4	CONTACTOR
			DHW PUMP		DHW PUMP
			RELAY	X1-8	CONTACTOR
				X2-4	SMALL BLOWER
					RELAY
X10-1		SMALL GAS		X10-2	LARGE BLOWER
		VALVE RELAY			RELAY
		LARGE GAS		X10-3
		VALVE RELAY
		LARGE GAS			GAS
				X10-6	VALVE
		VALVE RELAY
					(LARGE)	GAS
		SMALL GAS				VALVE
				X10-5		(SMALL)
		VALVE RELAY
				X10-4
				X1-3		FLAME
						SENSE 2
				X1-7		SPARK
				X1-10	SPARK	ROD
					GENERATOR
				X2-5		FLAME
						SENSE 1
				X6-3
X6-1			X11	X6-10
X2-5			USB	X13-4
		INTERFACE
SMALL BLOWER			SMALL BLOWER
		1		2
	RELAY
LARGE BLOWER				LARGE BLOWER
			3	1		2
	RELAY

GROUND

INTEGRATED

CONTROL

X8-20

X8-10

X8-1

X7-8

X7-7

X8-13

X8-14

X8-12

X8-11

X8-5

X8-15

X8-6

X8-16

X8-7

X8-17

X8-1

X8-3

X8-8

X8-2

X8-4

X8-9

X7-1

BOX DEPICTS

OPTIONAL ITEMS

BOX DEPICTS

DUAL SENSOR

SINGLE HOUSING

			LOW VOLTAGE
			120 VAC
			HIGH VOLTAGE
			LARGE
		CONNECTION BOARD
X4-1	X6-3	CN6-3
X4-2	X6-1	CN6-2
MODBUS
BOARD	X6-2	CN6-1
X4-3			17	SHIELD
		CN3-6	18	A	MODBUS
			19	B	OPTION
		CN3-7	20	SHIELD
			21	+	RATE
			0-10V	-	OUT
		CN3-14	22
			23	+	BOILER
			0-10V	-	PUMP OUT
		CN3-13	24
			25	SYSTEM RETURN
		CN3-12	26	SENSOR
			27	SYSTEM SUPPLY
		CN3-11	28	SENSOR
			29	TANK
		CN3-10	30	SENSOR
			31	OUTDOOR
CN3-4		CN3-9	32	SENSOR
			33	+	BMS
			0-10V	-	IN
		CN3-8	34
			35	+	SYSTEM
			0-10V	-	PUMP IN
		CN3-1	36
			37	SHIELD
		CN3-2	38	A	CASCADE
			39	B
		CN3-3	40	SHIELD
		CN3-4
-T
INLET SENSOR
-T
OUTLET SENSOR (S9)
-T
OUTLET SENSOR (S1)
-T
FLUE SENSOR
-T
FLUE SENSOR (S10)
-T

X1-1				X1-2	3
	MODBUS
		X1-3		FLUE DAMPER
				TRANSFORMER
	FLUE DAMPER
	1	M	2
			3
				24V
				TRANSFORMER
			J3-6		J3-5
LWCO	TEST		J3-3		J3-2
PROBE	SWITCH
	LWCO RESET		J2-1	LWCO	J3-4
				BOARD
			J2-2
				INTEGRATED
			X6-5	CONTROL
GPS1	GPS2	GPS3	X6-15
BLOWER PROVING					X3-3
SWITCH (LARGE)			X6-12
BLOWER PROVING					X3-4
SWITCH (SMALL)			X13-1		X3-1
BLOCKED FLUE			X6-6		X3-2
SWITCH
BLOCKED DRAIN			X5-1
SWITCH
			X5-7		X6-11
			X5-2		X6-2
			X5-8		X6-14
			X5-3
	"X5"		X5-9		X6-13
BLOCK WIRING			X5-4		X6-4
IS MODEL
DEPENDANT
			X5-10
			X5-5
			X5-41
			X5-6
			X5-12

		X7-5	PRE-MIX SENSOR 1 (S11)
			-T
		X7-2	PRE-MIX SENSOR 1 (S13)
			-T
		X7-6	PRE-MIX SENSOR 2 (S12)
			-T
			PRE-MIX SENSOR 2 (S14)
		X6-18	1
			SMALL BLOWER
		X6-9	2
		X6-17	4
		X6-8	5
			1
		X13-2	LARGE BLOWER
			2
		X13-3	4
			5
		X4
		RIBBON CABLE			LCD
			CN1	CN3
					DISPLAY
		SMALL	DU941
	CONNECTION BOARD
	CN1-4
	CN1-5
	CN1-6	1	ALARM
	CN1-12	2	CONTACTS
		3	RUN-TIME
	CN1-10	4	CONTACTS
		5	TANK
	CN1-11	6	THERMOSTAT
		7	R
		8	ENABLE
	CN1-9		W
		9	LOUVER
	CN1-8	10	PROVING
		11	24 VAC LOUVER
	CN1-7	12	RELAY COIL
		13	AUX
	CN1-1	14	SWITCH 1
		15	AUX
HIGH LIMIT	CN1-2	16	SWITCH 2
SWITCH
	CN1-3
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 ribbon cables must be purchased from the factory. Use of a non-approved spark lead or ribbon 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.

LADDER DIAGRAM

LBL20281 REV A

58