11-1 Wiring Schematics
450 LXi
Owner Manual
~ 11-1-121 ~
Rev. “C”
Wiring Schematic 0089289 - Schematic, Wiring, Hyd, Rftop A/C, Elec. Ht, Ctl. - Page 1 of 5
BLK26
FURN-
SPLICE
BLU
BLU
YEL
YEL
RED
BLK
AIR DUCT.
IN RETURN
LOCATED
13
8
5
4
WHT
12
14
-
+
WHT
THERMISTOR
COOLING
1
2
RY22S-UDC12V
RED
1
9
RED
8
14
-
13
12
+
WHT
4
LOAD SHED
LOCATED IN
ROOFTOP ENCL.
AMBIENT
THERMISTOR
ZONE 2
AMBIENT
SENSOR
1
2
P3
5
GND
6
BATT
2
1
RJ11
LOAD SHED
BEDROOM
P2
SENSOR
RMT
P4
2
1
& HEAT PUMP
ROOF TOP A/C
P1
UNIT #4
1
4
FURN
P6
3
FURN
4
2
LR-BR
RGT HARN
WHT
RED
BED A/C-
BED A/C+
1
2
BLK22
YEL
YEL
BLK56
WHT
BRN
BED A/C EMS1
BED A/C EMS2
BED A/C FUR2
BED A/C FUR1
BED A/C EMS1
BED A/C EMS2
CTR HARN
BLK23
1
BAY LOAD
2
1
BLK23
SPLICE
BLK21
BED A/C-
BED A/C+
BLK3
13
14
HARN
B
BAY MUX
BED A/C FUR2
SPLICE
BLK27
BED A/C FUR1
1
2
BLK4
HARN
D
BAY MUX
BLU
BLU
BLK
RED
BLU
BLU
YEL
YEL
BLU
BLU
RED
BLK
YEL
YEL
YEL
YEL
BLK
RED
THERMISTOR
FURN
COOLING
THERMISTOR
AIR DUCT.
IN RETURN
LOCATED
2
1
RY22S-UDC12V
5
4
WHT
RED
1
9
RED
AIR DUCT.
IN RETURN
LOCATED
2
1
8
-
+
14
13
4
WHT
5
12
WHT
9
RED
THERMISTOR
ROOFTOP ENCL.
LOCATED IN
2
1
AMBIENT
RJ11
4
P3
FURN
LOAD SHED
LOAD SHED
SENSOR
2
ZONE 1
SENSOR
AMBIENT
2
1
RMT
1
P4
BATT
6
GND
5
4
1
& HEAT PUMP
P2
P1
BATH
UNIT #3
ROOF TOP A/C
3
4
BLK51
P6
FURN
ROOFTOP ENCL.
LOCATED IN
1
2
THERMISTOR
AMBIENT
LOAD SHED
LOAD SHED
SENSOR
AMBIENT
2
1
ZONE 2
SENSOR
P3
RMT
P4
2
1
5
GND
6
BATT
1
4
IN RETURN
COOLING
AIR DUCT.
RY22S-UDC12V
RED
1
8
4
WHT
13
14
+
-
12
WHT
LOCATED
INSIDE COMFORT
LOCATED
THERMISTOR
COOLING
1
2
THERMISTOR
HEATING
RY22S-UDC12V
5
RED
1
9
RED
COMFORT
LIVING ROOM
ZONE 1
RJ11
ROOF TOP A/C
& HEAT PUMP
P2
P1
KITCHEN
UNIT #2
4
FURN
3
4
BLK44
P6
4
ROOFTOP ENCL.
LOCATED IN
2
1
AMBIENT
THERMISTOR
RJ11
LOAD SHED
LOAD SHED
SENSOR
RMT
P4
2
1
AMBIENT
SENSOR
LIV-RM & DASH
1
P3
2
P2
4
GND
BATT
6
5
1
4
FURN
ROOF TOP A/C
& HEAT PUMP
P1
UNIT #1
BLK36
3
P6
FURN
FURN-A
RGT HARN
LR-BR
WHT
YEL
RED
YEL
BATH A/C-
BATH A/C EMS1
BATH A/C+A
BATH A/C EMS2
WHT
BLK51
BRN
BATH A/C FUR2
BATH A/C FUR1
BLK71
BATH A/C EMS1
BATH A/C EMS2
9
10
4
6
BLK22
BAY LOAD
CTR HARN
11
12
BLK22
LR-BR
RGT HARN
RED
WHT
YEL
YEL
KIT A/C+
KIT A/C-
KIT A/C EMS2
KIT A/C EMS1
6
5
KIT A/C EMS2
KIT A/C EMS1
BLK22
BLK71
3
4
BAY LOAD
CTR HARN
9
BATH A/C-
10
BLK21
SPLICE
BATH A/C+A
BLK3
BAY MUX
HARN
D
BATH A/C FUR1
BATH A/C FUR2
11
12
SPLICE
BLK27
BLK3
BAY MUX
HARN
C
KIT A/C+
KIT A/C-
6
5
SPLICE
BLK21
BLK3
BAY MUX
HARN
A
FURN-B
FURN-C
FURN-D
??
BRN
WHT
BLK44
KIT A/C FUR2
KIT A/C FUR1
RGT HARN
CTR HARN
BAY LOAD
7
8
BLK22
CTR HARN
LR-BR
YEL
WHT
RED
YEL
FT A/C+A
FT A/C-
FT A/C EMS2
FT A/C EMS1
BLK36
BRN
WHT
FT A/C FUR2
FT A/C FUR1
4
BLK22
2
1
FT A/C EMS1
FT A/C EMS2
CTR HARN
BLK69
3
BAY LOAD
BAY LOAD
4
3
BLK22
HARN
KIT A/C FUR2
8
7
BLK27
SPLICE
KIT A/C FUR1
BLK3
BAY MUX
HARN
B
BLK21
SPLICE
C
HARN
FT A/C+A
FT A/C-
BLK3
1
2
SPLICE
BLK27
BAY MUX
A
FT A/C FUR1
FT A/C FUR2
3
4
BLK3
BAY MUX
FURNACE
SW CH9
SW CH8
SW CH7
SW CH2
SW CH10
BED A/C+
4
BED-RM ZONE2
BED A/C FUR1
BED-RM ZONE1
5
BATH A/C FUR1
LIV-RM ZONE2
LIV-RM ZONE1
FRT A/C FUR1
BAY HT TST SIG
2
KIT A/C FUR1
3
J2
3
J1
BLUE
LOOP
BATH SWITCH PANEL
1
12V
COM GND
2
3
SIG
PMC
LOCIC
SW9
BLUE LOOP
00-00850-010
J1
COM GND
2K
SIG1
12V
2
J3
1
3
PMC
LOCIC
2K
2K
00-00622-110
2K
2K
2
J2
J2
5
FT A/C+
BATH A/C+A
BATH
A/C+A
BED
A/C+
SPLICE
SPLICE
20
19
BAY MUX
HARN
BATH A/C+
1
KIT A/C+
FT
A/C+A
KIT
A/C+
FURN-
J3
SPLICE
E GROUND-
BLK27
MODULE "H"
BLUE LOOP
COM GND
F2 10A
SIG
2
1
5
GND
ST3
M
80A
OUT-PUT GND
00-00838-410
MODULE "E"
BLUE LOOP
F1 10A
12V
ST
F1
PMC GND
PMC 12V
PMC SIG
12V
1
3
2
GND
3
4
J1
12V
ST3
SPLICE
BLK27
H
12V
J4
J4
4
5
6
3
2
4
5
3
5
3
BATH A/C EMS2
BATH A/C EMS1
KIT A/C EMS2
1
FT A/C +A
KIT A/C EMS1
BED A/C EMS2
BED A/C EMS1
FT A/C EMS2
BATH A/C
F1
3A
MODULE "K"
00-00702-330
BLUE LOOP
J3
KIT A/C
RLY#6
BED A/C
RLY#5
EMS PANEL 1
FRT A/C
RLY#4
EMS PANEL 2
BAY HT TST SIG
BAY HT TST-
BAY LOAD
CTR HARN
THERMOSTAT
BAY HEATERS
BAY4
BLK11
BAY
BLK12
HARN
B
7
SPLICE
8
BAY MUX
J4
4
FT A/C EMS1
RLY#4
EMS PANEL 3
(12V)
(12V)
(12V)
(12V)
12V FOR
DOMETIC
ROOFTOP
CONTROL
BOARDS.
HYDRONIC
HEATING
SYSTEM
TEMPERATURE
SENSOR
INPUTS.
HYDRONIC
CONTROL THERMOSTAT.
CONTROL THERMOSTAT.
INSIDE COMFORT
LOCATED
THERMISTOR
HYDRONIC
HEATING
DISABLES HEAT
PUMP BELOW 45F.
PUMP BELOW 45F.
DISABLES HEAT
DISABLES HEAT
PUMP BELOW 45F.
PUMP BELOW 45F.
DISABLES HEAT
BUTT
SPLICE
BUTT
SPLICE
BUTT
SPLICE
BUTT
SPLICE
FURANCE SWITCH "ON"
SELECTS TEMPERATURE
SENSOR IN COMFORT
CONTROL THERMOSTAT.
SH 2
BLUE
LOOP
CONTROLS
THERMISTOR
RELAY COIL.
"OFF" SELECTS
COOLING THERMISTOR.
"ON" SELECTS
HEATING THERMISTOR.
ENERGY MANAGEMENT
SYSTEM CONTROL
SIGNALS. SHEDS
A/C ROOFTOP UNITS
WHEN EMS DETECTS
LOAD CURRENT
APPROCHES MAXIMUM.
CONTROL PCB
CONTROL PCB
CONTROL PCB
CONTROL PCB
THERMISTOR RELAY
THERMISTOR RELAY
THERMISTOR RELAY
THERMISTOR RELAY
NOTE 1:
WHEN THERMISTOR RELAY IS "ON", IT DISCONNECTS THE COOLING THERMISTOR
FROM THE ROOFTOP A/C & HEAT PUMP CONTROL PCB. THE CONTROL PCB USES
COMFORT CONTROL THERMOSTAT THERMISTOR TO SENSE TEMPERATURE.
WALL MOUNTED COMFORT CONTROL THERMOSTATS FOR OPTIMAL OPERATION.
FROM FOUR ZONES TO TWO ZONES. THE HEATING THERMISORS ARE LOCATED IN THE
WHEN THERMISTOR RELAY IS "ON", THE NUMBER OF HEATING/COOLING ZONES CHANGES
NOTE 2:
CONTROLS THE RESPECTIVE ROOFTOP A/C & HEAT PUMP UNIT.
WHEN THERMISTOR RELAY IS "OFF", THE NUMBER OF HEATING/COOLING ZONES CHANGES
FROM TWO ZONES TO FOUR ZONES. THE COOLING THERMISTORS ARE LOCATED IN THE
RETURN AIR DUCT FOR OPTIMAL COOLING OPERATION. EACH COOLING THERMISTOR
NOTE 3:
THERMOSTAT
CONTROL
THERMOSTAT
CONTROL
COMFORT
BEDROOM
THE HYDRONIC HEATING SYSTEM USES THE HOUSE MULTIPLEX SYSTEM TO REGULATE
TEMPERATURE BY TURNING THE RESPECTIVE CONVECTOR FANS ON & OFF.
THE COOLING SYSTEM USES THE DOMETIC INTERNAL TEMPERATURE REGUALATING
CONTROL BOARDS IN THE RESPECTIVE ROOFTOP A/C & HEAT PUMP UNITS.
NOTE 4:
LOW AMP
OUTPUTS
1
2
3
4
5
6
7
8
9
10
11
12
13
DESIGNATE THERMISTOR RELAY REWORK CONNECTIONS.
NOTE 5:
1
13
THRU
THERMISTORS & THERMISTOR RELAYS
ROOFTOP A/C & HEAT PUMP CONTROL PCB
INTERCONNECTING HARNESSES
HOUSE MULTIPLEX I/O MODULES
ROOFTOP HVAC THERMISTOR SENSOR RELAYS
CONTROL
CABLE
CONTROL
CABLE
B
CHANGE HARNESS PART NUMBERS
BT
BT
01/11/06
13177S
C
CHANGE HARNESS PART NUMBERS
BT
BT
02/06/06
12997H
D
CHANGE HARNESS PART NUMBERS
BT
BT
02/07/06
13177V
INACTIVATES NOS.
LET.
WAS
REVISIONS
DR.
APP.
CCN
SCALE
BLUE BIRD CORPORATION
FORT VALLEY GEORGIA, U.S.A.
CCN
DR.
APP.
BY
BY
D
PAGE
__OF__
1
2
3
4
5
A
B
C
D
E
F
G
H
6
7
0089289
SCHEMATIC,WRG,HYD,RFTOP A/C,ELEC HT,CTL
03/09/05
04/27/05
RK
RK
13148D
NONE
1
5
M450LXI
CONFIDENTIAL
The information hereon is confidential
business information and may not be copied
or used for any purpose unless permission
is expressly granted in writing by
Blue Bird Corporation.
Copyright 2004
Blue Bird Corporation
All rights reserved
A
CHANGE HARNESS PART NUMBERS
BT
BT
11/11/05
13177D
Summary of Contents for 450 LXi
Page 1: ......
Page 11: ...450 LXi Owner Manual Rev C NOTES...
Page 37: ...450 LXi Owner Manual Rev C NOTES...
Page 51: ...450 LXi Owner Manual Rev C NOTES...
Page 59: ...450 LXi Owner Manual Rev C NOTES...
Page 63: ...450 LXi Owner Manual Rev C NOTES...
Page 103: ...450 LXi Owner Manual Rev C NOTES...
Page 129: ......
Page 165: ...450 LXi Owner Manual Rev C NOTES...
Page 171: ...4 14 Appliances 450 LXi Owner Manual 4 14 6 Rev C 4 14 5 Touch Control Panel...
Page 188: ...450 LXi Owner Manual 4 14 Appliances Rev C 4 14 23 4 14 13 Auto Touch Guide...
Page 207: ...450 LXi Owner Manual Rev C NOTES...
Page 219: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 12 Rev C...
Page 221: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 14 Rev C...
Page 244: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 37...
Page 248: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 41...
Page 250: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 43 4 16 3 5 Basic Controls...
Page 253: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 46 Rev C...
Page 267: ...4 16 Audio Video Components 450 LXi Owner Manual 4 16 60 Rev C 4 16 4 12 Location of Controls...
Page 268: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 61...
Page 314: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 107 Other Audio Visual Equipment...
Page 320: ...450 LXi Owner Manual 4 16 Audio Video Components Rev C 4 16 113...
Page 369: ...450 LXi Owner Manual Rev C NOTES...
Page 373: ...4 17 Electronic Step 450 LXi Owner Manual 4 17 4 Rev C NOTES...
Page 375: ...450 LXi Owner Manual Rev C NOTES...
Page 411: ...450 LXi Owner Manual Rev C NOTES...
Page 459: ...This Page Was Intentionally Left Blank...
Page 527: ...5 4 Generator Maintenance Service 450 LXi Owner Manual 5 4 24 Rev C NOTES...
Page 531: ...450 LXi Owner Manual Rev C NOTES...
Page 535: ...450 LXi Owner Manual Rev C NOTES...
Page 556: ...450 LXi Owner Manual 10 1 Where to Go for Service Rev C 10 1 9...
Page 557: ...450 LXi Owner Manual Rev C NOTES...