Carrier Air 5 Manual

							T-- 298 3-17 3.11.2 Timeguard Timer
A 3-- minute timeguard is built into the thermostat
immediately upon power up, and any time the
compressor (output “Y”) turns off. The compressor will
not turn on until the timeguard has expired. Pressing UP
and FAN buttons simultaneously will override the
timeguard for 1cycle.
3.11.3 Cycle Timer
In normal cooling (and heating) operation the
thermostat will notallow more than4 equipment cycles
per hour (or 1 cycle every 15 minutes). Both the “Y”
(cooling) and “W” (heating) outputs have a 15-- minute
timer that starts counting down when the output is
turned on, (e.g., if “Y” output is turned on for 9 minutes
and then satisfies, it cannout turn back on for another 6minutes regardless of demand). However, pressing UP
and FAN buttons simultaneously or changing the set
point will override the timer for 1 cycle.
3.11.4 Minimum On Timer
Once the equipment has turned on, it will remain on for a
minimum of 2 minutes regardless of demand. However,
the equipment can turn off in less than 2 minutes if a
change in set point, or a changein mode occurs.
3.11.5 Error Messages
E4 will be displayed if the thermostat has an internal
memory failure. If E4 appears, replace the thermostat.
-- -- (two dashes) will be displayed if the thermostat
cannot properly read the room temperature. If -- --
appears, replace the thermostat.
POWERBOX
ASSEMBLY
UPPER UNIT
1234 2
1
12 34
1
2
3
4
5L
N2
N1
W
Y
GH
GL
C
Y
GH
GL
R
CCOOL (Compressor)
FAN (High)
FAN (Low)
12VDC LowVoltage
Power Supply
CEILING UNIT
Motor Comp.
Factory WiringField Wiring
THERMOSTAT J
115V AC High Voltage
Power Supply
Figure 3-40 Wall Thermostat Wiring Diagram -- Cool Only Model 
						

							T-- 2983-18 POWERBOX
ASSEMBLY
UPPER UNIT
1234 21
12 34
1
2
3
4
5
1
2 L
N2
N1
W
Y
GH
GL
C
TBY
GH
GL
R
C
COOL (Compressor)
FAN (High)
FAN (Low)
12VDC LowVoltage
Power Supply
CEILING UNITFURNACE + 12VDC12 VDC (Gnd)
Motor Comp.
115V AC High Voltage
Power Supply
Factory WiringField Wiring
THERMOSTAT
J
Blue
Blue
Figure 3-41 Wall Thermostat Wiring Diagram -- Heat/Cool Model 
						

							T-- 298 4-1
SECTION 4
WIRING SCHEMATICS
4.1 INTRODUCTION
This Section contains wiring schematics for the AirV units.
Figure 4-- 1 is the schematic for the standard upper unit assembly and it is applicable to all standard units.
Figure 4-- 2 is the schematic for the Low Profile upper unit assembly.
Figure 4-- 3 is the schematic for a free blow ceiling unit without heat while Figure 4-- 4 is a free blow unit with heat.
Figure 4-- 5 is for a ducted unit with microprocessor control.
Figure 4-- 6 is for an Upper Unit Heat Pump with free blow application and Figure 4-- 7 is the matching free blow ceiling
unit.
Figure 4-- 8 is for the Upper Unit Heat Pump ducted application and Figure 4-- 9 is the matching ducted ceiling unit.
Note that the ducted units have 115 VAC power for the components and 12 VDC power for the microprocessor control
system.
Figure 4-- 10 is for the ducted or free blow application that uses a wall-- mounted thermostat, with or without the furnace
option.
Where applicable, diagrams that designate 115 Volt, 60 H, 1 Phase, are also available using 220 Volts, 50 H, 1 Phase.
Most noteably Figure 4-- 1 and Figure 4-- 5.
4P
2P
2P
CF
H
1 11
22
3
4
2
BLK
BLU BLK
BLU
WHT
WHT GRN/YEL
CONTROL
BOXEVAP. GRN/YELGRN/YEL
WHTBRN
12
CAPACITOR
YEL YEL
RED
BLU
COMPRESSOR
R
C
S
FAN MOTOR
OVERLOAD PROTECTOR
RED
PTCBLU
PLUG CONNECTS
TO CEILING UNIT
SEE FIG> 4-- 3
OR 4 -- 4
(If Used)
Figure 4--1 Upper Unit Schematic -- Standard & HC
4P
2P4P
CF
H BLK
BLU BLK
BLU
WHT GRN/YELGRN/YEL
WHT
WHT
WHT
BRNBRN
1
(3)2CAPACITOR
YELRED OLP
(IF USED)
BLUBLU RED
COMPRESSOR
R
C
S 1
2
3
4
1
21
2
3
41
2
3
4
OLP: OVERLOAD PROTECTION
PTC: START THERMISTER
JTB: JOINT TERMINAL BLOCK
FMC: INDOOR FAN MOTOR CAPACITOR
PLUG CONNECTS TO CEILING UNIT.
SEE DIAGRAM SUPPLIED WITH
CEILING UNIT FOR ADDITIONAL
WIRING.
INDOOR FAN MOTOR
YEL
WHT
YEL1
2
31
2
3
WHT
3PYEL
BRN
FMC
YEL
WHT
BRN
OUTDOOR FAN MOTOR
PTC
(IF USED)LEGEND
(UNIT -- 99 -- 00468 -- 10)
Figure 4--2 Upper Unit Schematic -- Low Profile 
						

							T-- 2984-2
2P
GRN/YELORNWHT
WHT
ASM
PLUG CONNECTS TO UPPER UNIT.
SEE DIAGRAM SUPPLIED WITH
UPPER UNIT FOR ADDITIONAL WIRING.
4P
2P
1 1
2
3
4
2
{
ASWO (OFF)
I(ON)2
2--1 SWITCH
POSITIONCONTACTS MADE
HIGH FAN
LOW FAN
OFF
LOW COOL1--4 . 1--6
1--2 . 1--6
NONE
1--2 . 1--6 . 1--8
1--4 . 1--6 . 1--8
HIGH COOL
ASM : AIR SWEEP MOTOR
ASW : AIR SWEEP SWITCH
SW : SWITCH
IT : INDOOR THERMOSTAT
LEGEND
ORNBLU BLK
ORN
SWIT
ASW
21
CL
8
6 12
4
YEL BLK
WHT
YEL
12
GRN/YEL11 5 VA C
SUPPLY
WIRE
Figure 4--3 Ceiling Unit Schematic -- Cooling Only
2P
CEC2P
PLUG CONNECTS TO UPPER UNIT.
SEE DIAGRAM SUPPLIED WITH
UPPER UNIT FOR ADDITIONAL
WIRING.
GRN/YEL
GRN/YEL
4P
2P
2 1
2
3
4
1{
ASWO (OFF)
1(ON)22--1 SWITCH
POSITION CONTACTS MADE
OFF
LOW FAN
HIGH FAN
LOW COOLNONE
L1--L . L1--A
L1--H . L1--A
L2--C . L1--L . L1--A . B--3
L2--C . L1--H . L1--A . B--3
L2--HT.L1--L.L1--A.B--1 HIGH COOL
HEAT
ASM AIR SWEEP MOTOR
ASW AIR SWEEP SWITCH
SW SWITCH
CEC CLOSED END CONNECTOR
BT BIMETAL IT INDOOR THERMOSTATLEGEND
ORNBLU BLK
ORN
ORNWHT
WHT
ASM
HEATER-- ASSY SW
IT
ASW
21
11
32 1
L2B
3
C HT
A L1L H
YEL BLK
BLK REDYEL
BLU
BLK BLK
WHT
WHT WHT
WHTHEATER
BT
1
12
2
11 5 VA C
SUPPLY
WIRE
Figure 4--4 Ceiling Unit Schematic -- Heat/Cool
1
2
2 21
3
1
1 1Y
L
N1 N2 2 34 12
4 3 2
(--) (+)
BLK
BLKWHT BLU
BLK
GRN/YEL GRN/YELWHT
WHT
BLU BLUBLK RED
24
CN9 CN9
135786
CN1
CN4
CN4
CN1
CN2CN3
RY1
RY2
D1 RY3
RY4250V 3.15AFUSE
11
2
3
4
5
6
7 7 65 432 RA Th
BRNBLKIDC Th
24 135786
8
1
7 65
4
3
2
88
DISPLAY PCB AS
11
2
3
321
3 2
CONTROL
PCB
ASS’Y
LEGEND
IDC Th : INDOoR COIL THERMISTER
RA Th : ROOM AIR THERMISTER
KY : RELAY
DI:DIODE
115 VAC POWER
12 VDC POWER
Figure 4--5 Ceiling Unit, Standard -- Ducted 
						

							T-- 298 4-3
CONTROL
BOXEVAP.
RVC 2P 4P
2P2P4P
CF
H BLK
BLU BLK
BLU
WHT WHT BRN
BLK BLK
BLK(BLU) GRN/YEL GRN/YELGRN/YEL
WHT
WHT WHT
BRN BRN
1
(3)2
CAPACITOR
YEL REDRED OLP
(IF USED)
BLUBLU RED
PTC
COMPRESSOR
R
C
S
FREEZE
SWITCHFA N M O TO R
1
2
3
4
1
2
1
21
2
3
41
2
3
4
1
21
2
OLP: OVERLOAD PROTECTION
PTC: START THERMISTER
RVC: REVERSING VALVE COIL
PLUG CONNECTS TO CEILING UNIT.
SEE DIAGRAM SUPPLIED WITH
CEILING UNIT FOR ADDITIONAL
WIRING.
Figure 4--6 Heat Pump -- Upper Unit -- Free Blow
PLUG CONNECTS TO UPPER UNIT.
SEE DIAGRAM SUPPLIED WITH
UPPER UNIT FOR ADDITIONALWIRING.
HEATER AS
HEATER BTGRN/YEL
GRN/YEL4P
2P 2P 2P2P
{
ORN
WHT
BRN BLK
WHT REDYELBLUBLK
ORN
ORNWHT
WHT BLK
ASM SW
ITASW 21
1
C
L H
2 B L2
3 3 C
1 HTA L1L H
YEL BLKBLK
BLK
CEC WHT
WHTSWITCH
POSITIONCONTACTS MADE
OFF
LOW FAN
HIGH FAN
LOW COOL
HIGH COOL
HEATINGNONE
L1--L . L1--A
L2--HT.L1--L.L1--A.B--1L2--C . L1--H . L1--A . B--3 L2--C . L1--L . L1--A . B--3 L1--H . L1--A
ASWO (OFF)
1(ON)2
2--1
LEGEND 1
2
3
4
1
2
1
2 1
12
2
112 2
ASM: AIR SWEEP MOTOR
ASW: AIR SWEEP SWITCH
SW: SWITCH
IT: INDOOR THERMOSTAT
CEC: CLOSED END CONNECTOR
BT: BIMETAL
11 5 VA C
SUPPLY
WIRE
Figure 4--7 Heat Pump -- Ceiling Unit -- Free Blow 
						

							T-- 2984-4
LEGEND
RVCPLUG CONNECTS TO CEILING UNIT.
SEE DIAGRAM SUPPLIED WITH
CEILING UNIT FOR ADDITIONAL
WIRING.
CN
CN
CF
H
OLP :OVERLOAD PROTECTORPTC :START THERMISTOR
RVC :REVERSING VALVE COILCN :HOUSING CONNECTOR
ODA Th :OUTDOOR AIR THERMISTOR
ODC Th :OUTDOOR COIL THERMISTORBLK BLK
BLK(BLU)
CONTROL
BOXEVAP.
BLU
RED
RED BRN
BLU
WHT GRN/YELGRN/YEL
WHT WHT BLK
BRN
BRN
1
(3)2
CAPACITOR
YEL YEL
RED OLP
(IF USED)
BLUBLU RED
PTC
COMPRESSOR
R
C
S
FAN MOTOR
ODC Th
ODA Th 1
2
3
1
2
3
4
1
2
1
21
2
3
5
6
Figure 4--8 Heat Pump -- Upper Unit -- Ducted
ODC ODA
RVC MOTORCOMPRESSOR
FUSED1
250V 3.15A
3 3
332
1 7 6
5 4 3
2
1 11
22
33
44
55
66
7
8 8 87
1 1
1
2 2
2 1
2
3
4
FURNACE SIGNAL
12VDC POWER(--) (+)
115VAC POWER
BLK WHT
BLK
BLK GRN/YEL
RED BLU
BLK RED
BRN
GRN/YEL WHT
BLK
WHT
BLUBLU BLUBLK RED
PLUG CONNECTS TO UPPER UNIT.
SEE DIAGRAM SUPPLIED WITH UPPER UNIT
FOR ADDITIONAL WIRING.
ODA Th :OUTDOOR AIR THERMISTOR
*
* *FACTORY WIRING
(12VDC LOW VOLT.) (115VACHIGHVOLT.)
FIELD WIRING FIELD WIRING
LEGEND
NOTE
CONTROL PCB
POWER PCB ASS’Y ASS’Y
2
24
4 CN9
DISPLAY PCB AS
CN91
13
3576
5788
6 CN1
CN6 CN5
CN6 CN4 CN4
CN1
CN2CN3 CN5
K1
K4 K3 K7
K2
K61 1
1 1
2 2 2
2 2
1 3 3
3441 22 1
Y
L
N2
N1
12 RA Th
BRN BLK
IDC Th
IDC Th: INDOOR COIL THERMISTER
RA Th: ROOM AIR THERMISTER
ODC Th: OUTDOOR COIL THERMISTER
RVC: REVERSING VALVE COIL
D1: DIODE
K: RELAY
Figure 4--9 Heat Pump -- Ceiling Unit -- Ducted 
						

							T-- 298 4-5
Figure 4--10 Ceiling Unit -- Wall Thermostat -- Ducted & Free Blow
4.2 WALL MOUNTED THERMOSTATS
For proper wiring of Wall Mounted Thermostats as an accessory, refer to Figure 3-40 (Wall Thermostat Wiring
Diagram -- Cool Only Model) or Figure 3-41 (Wall Thermostat Wiring Diagram -- Heat/Cool Model). 
						

							Index -1T-- 298
INDEX
A
Air Handling System , 3-8
Air Sweep Removal, 3-3
Air Sweep Switch , 3-2
C
Capacitor Testing, 3-9
Capacitor Testing and Replacement, 3-9
Ceiling Grill -- Ducted, 3-4
Ceiling Grill -- Free Blow, 3-1
Ceiling Panel -- Free Blow, 3-2
CEILING UNIT -- DUCTED SYSTEMS, 3-4
CEILING UNIT -- FREE BLOW , 3-1
Cleaning, 3-1
Compressor , 3-6, 3-13
Condenser Fan, 3-7
Control Box -- Ducted, 3-4
Control Box -- Upper Unit, 3-6
Controls, 3-1
Cool Only Thermostat, 3-15
D
Design Change, 1-1
E
Evaporator Blower Wheel, 3-8
Exterior Cover, 3-5, 3-10, 3-15
F
Filter Removal -- Free Blow, 3-1
Filter Removal -- Ducted, 3-4
Fuse Removal -- Ducted, 3-5
H
Heat Strip, 3-3
Heat/Cool Thermostat, 3-15
I
Indoor Thermostat , 3-3
INTRODUCTION, 1-1, 4-1
L
LCD DISPLAY, 3-15, 3-16
Leaks, 3-1
M
Main Pcb Board, 3-5
Master Control Switch, 3-2
Motor , 3-7
Mounting, 3-1
P
Painting, 3-1
PCB Display , 3-5
PREVENTATIVE MAINTENANCE, 3-1
R
REFRIGERANT CYCLE, 1-9, 1-10
S
Serial Number, 1-1
SERVICE -- GENERAL, 3-1
SERVICE -- UPPER UNIT -- LOW PROFILE, 3-10
SERVICE AND MAINTENANCE, 3-1
START--UP, 1-9
T
THERMOSTAT INSTALLATION AND START--UP IN-
STRUCTIONS (WALL MOUNTED), 3-15
TROUBLESHOOTING, 2-1, 2-3
U
Upper Scroll Assembly, 3-7, 3-10, 3-11, 3-12, 3-13
W
WIRING SCHEMATICS, 4-1 
						

							©2006 Carrier CorporationDPrinted in U. S. A. 0606
Carrier Transport Air Conditioning
50 Grumbacher Road
York PA 17402 USA
Tel: 1 --800 --673 --2431
Fax: 1 --717 --764 --0401
A member of the United Technologies Corporation family. Stock symbol UTX
Carrier Transicold Division,
Carrier Corporation
Transport Air Conditioning Group
P.O. Box 4805
Syracuse, N.Y. 13221 U.S A
www.carrier.transicold.com