Carrier 38BNB018-036 Unit installation
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The Carrier 38BNB018-036 is a duct-free air conditioning and heating system that provides efficient cooling and heating solutions for residential and commercial spaces. With its advanced features, it offers precise temperature control, energy savings, and enhanced comfort all year round. Here's an overview of its notable capabilities:
-
Efficient Cooling and Heating: The system delivers powerful cooling and heating performance, maintaining a comfortable indoor climate regardless of the outdoor temperature.
-
Energy-Saving Operation: Equipped with energy-saving technologies, the Carrier 38BNB018-036 minimizes energy consumption while maintaining optimal comfort levels.
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38BNB,BNE/
40BNB,BNE018-030
Duct Free Systems
Installation, Start-Up and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS .........................
GENERAL .........................................
INSTALLATION ...................................
40BNB,BNE Indoor Unit Installation .................
...............
38BNB,BNE Outdoor Unit Installation
Power Supply ........................................
Leak Test ............................................
START-UP ..........................................
System Checks .....................................
CARE AND MAINTENANCE .........................
38BNB,BNE Outdoor Units .........................
40BNB,BNE Indoor Units ...........................
To Clean the Indoor Unit Front Panel ...............
To Clean Indoor Coil ................................
Air Filters for 38BNB,BNE Outdoor Units and
40BNB,BNE Indoor Units .........................
SERVICE ...........................................
TROUBLESHOOTING ............................
Page
1
1-4
4- l 1
4
(r
7
7
12
12
12
12
12
12
12
12
12
13-16
IMPORTANT: Both refligerant lines must be insulated ]
I
• Consult local building codes and National Electrical
Code (NEC, U.S.A.) for special installation requirements.
• Control wiring should be 18 gage.
• Use only type "G" or"C" fuses.
• Use single length power cable without extension.
• Allow sufficient space for airflow clearance on condensing units for wiring, refrigerant piping, and servicing unit.
See Fig.
1 and 2 for minimum required distances between unit and walls or ceilings.
• Indoor and outdoor units should be installed at a minimum of 10 ft apart.
Maximum line length is 130 ft, and vetlical separation is 66 ft.
• Do not install indoor units near a direct source of heat such as direct sunlight, steam or flame.
SAFETY CONSIDERATIONS
Installing, stalling up, and servicing air-conditioning equipment can be hazardous due to system pressures, electric_d components, and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should install, start-up, and service this equipment.
Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed by trained service personnel.
When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment.
Follow all safety codes.
Wear safety glasses and work gloves.
Keep quenching cloth and fire extinguisher nearby when brazing.
Use care in handling, rigging, and setting bulky equipment.
Do not bury more than 36 in. of refrigerant pipe in the ground.
If any section of pipe is buried, there must be a
6 in. vetlical rise to the valve connections on the outdoor units.
If more than the recommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown.
This causes refrigerant slugging and could possibly &image the compressor at start-up.
6"
(0.15m)
MIN.
6"
(o.15m)
MIN.
Before installing or servicing system, always turn off main power to system and install lockout tag on disconnect.
There may be more than one disconnect switch. Electrical shock can cause personal injury.
2'
(0.6m)-
GENERAL
These instructions covet the installation, start-up and setvicing of 38BNB,BNE018-030 outdoor and 40BNB,BNE018-030 indoor units cooling only and heat pump duct free systems.
See
Table 1 for parts included. See Tables 2 and 3 for Physical Data.
System Requirements
Fig. 1 -- 38BNB,BNE Outdoor Unit Clearances
IMPORTANT: See line sizing requirelnents in Tables 2
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 533-80122 Printed in U.S.A.
Form 38B/40B-4SI Pg 1 5-05 Replaces: 38B/40B-1SI,
38B/40B-2SI
ITEM
Mounting Bracket
QTY
Table 1 -- Parts List -- High Wall Units
DIAGRAM
Main Screw
38B/40B018-024 or 38B/40B030
Long Screws 8
1/2 in. Cap Screws
(size
030 units only)
2 colored, 2 nickel plated
1
Absorption Cushions
4
Electric Terminals 16
:,_ (HEAT PUMP ONLY)
Remote Controller Rack 1 rack with 2 screws
Remote Controller and Batteries
Insulation for Fittings
Owner's Manual
Wall Plugs
INDOOR UNIT
COOLING CAPACITY (Btuh)
SEER
EER
SYSTEM CHARGE (Ib)*
MOISTURE REMOVAL (pt/hr)
AIRFLOW
High Cfm
DIMENSIONS
H x L x W (in.)
NET WEIGHT (Ib)
Table 2 i Physical Data i Cooling Only
40BNB-018
18,000
10.0
9.6
3.1
5.0
726
11.63 x 42.50 x 7.28
28.0
OUTDOOR UNIT
TUBE CONNECTIONS
Mixed Phase...Suction
(in.)
Vert Lift/Vert Drop/Max Length (ft)
NOMINAL LINE SIZING
Mixed Phase...Suction
DIMENSIONS
(in.)
H x LxW(in.)
NET WEIGHT (Ib)
LEGEND
EER -Energy Efficiency Ratio
SEER -Seasonal Energy Efficiency Ratio
38BNB-018
1/4...1/2
66/66/130
1/4...1/2
21.25
X 28.75
X 10.44
84.5
*Units are shipped with a factory charge based on 10 to 50 ft of refrigerant lines.
40BNB-024
22,800
10.5
9.5
3.8
7.0
726
11.63 x 42.50 x 7.28
28.0
38BNB-024
3/8...S/8
66/66/130
3/8...5/8
25.18
X 35.44
X 12.28
145.0
INDOOR UNIT
COOLING CAPACITY (Btuh)
SEER
EER
HEATING CAPACITY (Btuh)
HSPF
COP
SYSTEM CHARGE* (Ib)
MOISTURE REMOVAL (pt/hr)
AIRFLOW
High Cfm
DIMENSIONS
H x L x W (in.)
NET WEIGHT (Ib)
Table 3 i Physical Data i Heat Pump
40BNE-018
18,000
10.0
9.6
18,600
6.8
2.9
3.1
5.0
726
295 x 1020 x 185
28
40BNE-024
22,800
10.5
9.5
22,800
7
2.8
3.8
7.0
726
295 x 1020 x 185
28
OUTDOOR UNIT
TUBE CONNECTIONS
Mixed Phase...Suction
(in.)
Vert Lift/Vert Drop/Max Length (ft)
NOMINAL LINE SIZING
Mixed Phase...Suction
(in.)
DIMENSIONS
H x L x W (in.)
SHIPPING WEIGHT (Ib)
LEGEND
COP -Coefficient of Performance
EER -Energy Efficiency Ratio
HSPF -Heating Seasonal Performance Factor
SEER -Seasonal Energy Efficiency Ratio
38BNE-018
1/4...1/2
66/66/130
1/4...1/2
21.25 x 28.75 x 10.44
84.5
*Units are shipped with a factory charge based on 10 to 50 ft of refrigerant lines.
NOTE: Standard Ambient Operating Limitations -- 55 F to 125 F (12.7 C to 51.6 C).
38BNE-024
3/8...5/8
66/66/130
3/8.-5/8
25.18 x 35.44 x 12.28
145.0
40BNB-030
28,000
10.0
9.1
4.7
8.0
700
12.0 x 55.0 x 7.5
68.0
38BNB-030
3/8...S/8
66/66/130
3/8...5/8
25.38
X 45.0
X 15.88
165.0
40BNE-030
28,000
10.0
9.1
28,000
7.0
2.8
4.7
8.0
700
304 x 1397 x 191
44
38BNE-030
3/8...5/8
66/66/130
3/8.-5/8
25.38 x 45.0 x 15.88
165.0
6" (0.
_ min.
6'-8'3" (1.8-2.5rn)
Fig. 2 -- 40BNB,BNE Indoor Unit Clearances
INSTALLATION
Plan the installation carelhlly to avoid component failures and make inst_dlation easiec
40BNB, BNE Indoor Unit Installation
REFRIGERANT LINE ROUTING -Tile refrigerant lines may be routed in any of the four directions shown in Fig. 3.
INSTALL THE MOUNTING BRACKET
1. Carefully remove the mounting bracket, which is connected to the back of the indoor unit's metal base with
3 screws.
NOTE: Size 030 units have four I/2 in. cap screws, 2 colored and 2 nickel pkited. Keep these for kiter use.
2.
Position the mounting bracket on the wall and level it using a spirit level (see Fig.
2 for minimum required clearance distances).
3.
Mark the four drilling holes on the wall, as they appear in
Fig. 4.
4.
Drill the holes, insert the wall plugs and use four long screws to attach the mounting bracket to the wall.
5.
Check that the bracket is level and securely fastened to the wall.
DRILL A HOLE IN THE WALL FOR DRAINAGE AND
INTER-UNIT CONNECTIONSTo m;&e the connections between the indoor and outdoor units, drill a 3-in. hole through the wall for the refrigerant lines, drainage hose and control cable passage as shown in Fig. 5.
1. Mmk the center °f the h°le t° be diilled acc°rding t° the refrigerant line routing used and dimensions shown in Fig. 4.
2.
Make sure to diill outw;uds and downwards, so that the opening in the outside wall is at least I/2-in. lower than the opening on the inside.
3.
Make sure the drainage hose is at the bottom side of the hole.
4.
If refrigerant line route no. 1, 3 or4 are used, use a sm_dl saw blade to cmefully remove the corresponding plastic covering on the side panel.
5.
Run the outdoor sensor cable, electrical cable, refrigerant lines, and drainage tube through the hole.
6.
Fill the remaining wall hole gap wifll an appropriate sealant material.
WIRE THE INDOOR UNIT
1.
Remove the unit's grille insell by lilling the lower part and pulling it gently outward and upward.
See Fig. 6.
2.
To remove the grille frame, remove the two screws (size
018-024) or three screws (size 030) from the _dr discharge opening.
See Fig.
7. Save the screws to reassemble.
3.
Pull downwards and outwards on the bottom of the grille and gently raise the frame off file top of the unit.
4.
Remove the two screws from file control box cover and take off the covet See Fig.
8. Save the screws to reassemble.
5.
Once all covers are off.
mount the unit onto the wall mounting bracket.
See Fig. 9.
NOTE: Leave covers off until after the Making Drainage
Connections section.
6.
Route the interconnecting unit's electric cable and the outdoor sensor cable towmd the lower right hand corner of the indoor unit.
38/40BN018-024
-_ i Main Screw _
_" 1i_2_..%
_--_ I
Main Screw
2 in, (50 mm)
2.6 in, (65 ram)
-_-[-"...............
Z
38/40BN030
3-IN.
INDOOR
Fig. 3 -- Refrigerant Lines
Fig. 4 -- Mounting Bracket
MIN
OUTDOOR SENSOR REFRIGERANT
CABkE_
OUTDOOR ELECTRICAL
CABLE
Fig. 5 -- Drill Holes
4
1.6"(41mm)'
LINES
DRAINAGE
TUBE
7.
Strip the cables back 1/4 inch.
8.
Make sure that the wires are connecting in accordance with the wiring diagram on the inside of the unit front cover or within this instruction manual.
9.
Secure the control cables in the upper strain relief and the power cables in file lower strain relief.
10.
For heat pump systems only, connect the outdoor sensor
TH3 to its mating black terminal.
See Fig. 10.
11. For size 030 units only, use the two colored, l/2-in, cap screws and two nickel plated l/2-in, cap screws to secure the base of the unit to the bottom of the wall mounting bracket.
Use the colored screws in the screw holes that will show, and the nickel plated screws on the holes that are underneath the plastic and will not show.
Make sure that all wires and screws me firmly fastened.
Ix_ose wires or connections can cause damage and present a fire hazard.
MAKE DRAINAGE CONNECTIONS
1. Connect the unattached end of the drainage tube to the drainage hose outlet.
2.
Se_d the &'ainage connection to prevent leakage.
3.
Make sure there me no kinks, "U" bends or flattened sections in the tube.
4.
Check that the &'ainage limctions properly.
Fill the pan below the unit's coil with water and observe that it freely drains out.
5.
Make sure the &ainage hose is at the bottom side of the wall through-hole (see Fig. 5).
REASSEMBLE
1. Connect file display connector to the display panel printed circuit board.
2.
Put the control box cover and grille fiame back on using the appropriate screws (Steps 2 and 4 of Wire the Indoor
Unit section).
Put the cover insert back on.
/
Plastic control cover
Fig. 8 -- Remove Control Cover
Fig. 9 -- Indoor Unit Mounting
Fig. 6 -- Remove Grille Insert
NOTE: Size 030 unit shown (3 screws).
Fig. 7 -Remove Grille Frame
OUTDOOR
(HEAT PUMP
SENSOR
ONLY)
Fig. 10 -- Outdoor Sensor Connection
CONNECT REFRIGERANT LINES -Connect file ends of the refrigerant lines to their appropriate fittings, following these guidelines:
To connect the refrigerant lines use only "L" type sealed, dehydrated copper refrigerant tubing. No other type of tubing may be used. Use of other types of tubing will void the manufacturer's warranty.
Do not open service v_dves or remove protective caps from tubing ends until all the connections are made.
Take care to avoid kinks or flattening of the tubing.
Bend tubing with special bending tools to avoid the formation of sharp bends.
Keep file tubing free of dirt, sand, moisture and other contaminants to avoid &imaging the ret]igemnt system.
Avoid sags in the suction line to prevent the formation of oil traps.
Insulate both refrigerant lines sep_uately with 3/3-in. walled thermal pipe insulation.
Inserting the tubing into the insulation before making the connections can save time and improve insulation. The suction and mixed phase lines should never come in direct contact.
ATTACH THE REMOTE CONTROLLER RACK
1. Use the two screws supplied with the controller to attach the rack to the wall in the location selected by the customer (see Fig. 11).
2.
[nstall batteries in the remote control.
3.
Place lemote control into remote control rack.
4. For remote control operation, refer to the unit Owner's
Manual.
38BNB, BNE Outdoor Unit Installation
NOTE: The outdoor unit must be installed on a solid surface
(mounting base).
1. Place the rubber absorption cushions (supplied with the outdoor unit) under the unit's legs to prevent vibrations.
2.
Fasten the outdoor unit legs to the mounting base, as shown in Fig. 12. The cushion goes between the legs and the mounting base.
3.
Be sure that the unit is level.
_-REMOTE CONTROL
REMOTECONTROLRACK
MAKE WIRING CONNECTIONS
1. Remove the outdoor unit plastic side covel:
2.
Loosen the screws on the terminal block.
3.
Attach the electrical terminals supplied to the inter-unit control and power cable wires.
4.
Connect the wires to the terminal block.
See
Fig. 13-16.
5.
For heat pump systems only, connect the outdoor sensor cable TH3, making sure the connector is properly inserted.
6.
Secure the inter-unit electric and sensor cable to the outdoor unit with the clamp shown in Fig. 12.
7.
Reassemble the plastic side covel:
NOTE: A &'ainage tube can be connected to the outdoor unit to lemove condensation formed during heating mode operation.
Make sure that _dl screws and wires me properly fastened.
Ix)ose wires or connections can cause damage and present a fire hazard.
MAKE REFRIGERANT PIPING CONNECTIONS
DOOR UNIT) -To connect the refrigerant lines:
(OUT-
Use only "L" type sealed, dehydrated copper refrigerant tubing. No other type of tubing may be used. Use of other types of tubing will void the manufacturer's wm'ranty.
Do not open service valves or remove protective caps from tubing ends until _dl the connections me made.
Bend tubing with special bending tools to avoid the formation of sharp bends.
Take cm'e to avoid kinks or flattening of the tubing.
Keep the tubing free of dirt, sand, moisture, and other contaminants to avoid &_maging the refrigerant system.
Avoid sags in the suction line to prevent the formation of oil traps.
Insulate each tube with 3/s-in. w_dled thermal pipe insulation. Inserting the tubing into the insulation before making the connections will save time and improve installation.
The suction and mixed-phase lines should never come in direct contact.
POWER SUPPLY
INTER UNIT
TERMINAL BLOCK
\
HIGH/LOW
BARRIER
(HEAT PUMP ONLY)
METAL
CONDUIT
;ONNECTION
PLATE
Fig. 11 -- Attach Rack to the Wall
BE PUT UNDER EACH LEG
Fig. 12 -Legs and Mounting Base-
Outdoor Units
FLARING AND CONNECTING REFRIGERANT LINES
1. Remove the protective cap from the flme fitting.
2.
Remove the protective cap from the tubing and cut to the required length. Be sure that the cut is perpendicular and clean, without burrs.
3.
Slip the flare nut on the tubing and flare the tube end using standiud flaring tools.
4.
Tighten the nut until resistance is met. Mark the nut and the fitting.
Using a suitable wrench tighten an additiomd
I/4 turn. Use tile following specified torque, according to connection size:
Mixed-Phase line: Suction line:
I/4-in. -(12.3 ft-lb) I/2-in. -(36 ft-lb)
3/8-in.(29 ft-lb) 5/8-in. -(47 ft-lb)
NOTE: The service valves on the outdoor unit must remain closed until all 4 connections have been made.
EVACUATE TUBING AND CHARGE THE SYSTEM --
When all the fittings me connected, air must be expelled, then refrigerant chm'ge must be checked and adjusted.
Follow the steps below.
1. Open the service port cap on the suction line v_dve (large valve).
2.
Connect the vacuum pump to the service port via the pressure gage and evacuate to 500 microns to eliminate contamination and moisture.
3. Disconnect the vacuum pump. Unit should maintain
500 microns for 5 minutes.
4. Open the mixed-phase valve (small valve) with an Allen wrench.
5.
Open the suction line valve (large valve) with an Allen wrench.
6.
The outdoor unit is supplied with sufficient R-22 refrigerant for 10 to 50 ft of line set. Add 0.9 oz of refiigemnt for each additiomd 3 ft of tubing used.
7.
Close the service port caps on the suction line and the mixed-phase valves.
8.
Make sure that the valves are properly opened.
Be careful not to open them more than required as this may damage the thread.
9.
Replace the service port cap. Using refrigerant oil, lubricate the cap beam and hand tighten until resistance is met.
Use a suitable wrench to tighten the cap by an additional
I/2 turn.
Power Supply
-See Tables 4 and 5 for electrical &_ta and Fig. 13-16 for system wiring diagrams.
Leak Test-
equipment.
Leak test all fittings with appropriate test
Table 4 -- Electrical Data, Indoor Units -- 208/230-1-60
COMPRESSOR
AMPS
UNIT
40BNB
40BNE
018
024
030
018
024
030
MCA*
0.5
0.5
0.5
0.5
0.5
0.5
MOCP*
15
15
15
15
15
15
LEGEND
MCA -Minimum Circuit Amps
MOCP -Maximum Overcurrent Protection
FULL LOAD AMPS
0.4
0.4
0.4
0.4
0.4
0.4
FAN MOTOR AMPS
0.4
0.4
0.4
0.4
0.4
0.4
*If local code permits and the indoor unit may be powered from the outdoor unit,
MCA and MOCP are for both units.
NOTE: Specifications and performance data are subject to change without notice.
N/A
0Q0s
COMPRESSOR
LOCKED ROTOR AMPS
N/A
Table 5 -- Electrical Data, Outdoor Units -- 208/230-1-60
UNIT
38BNB
38BNE
018
024
030
018
024
030
MCA*
11
19
21
11
19
21
MOCP*
15
30
35
15
30
35
LEGEND
MCA -Minimum Circuit Amps
MOCP -Maximum Overcurrent Protection
FULL LOAD AMPS
8.2
15.0
16.8
8.2
15.0
16.8
FAN MOTOR AMPS
0.8
1.4
1.8
0.8
1.4
1.8
*If local code permits and the indoor unit may be powered from the outdoor unit,
MCA and MOCP are for both units.
NOTE: Specifications and performance data are subject to change without notice.
COMPRESSOR
AMPS
7.4
13.6
15.0
7.4
13.6
15.0
COMPRESSOR
LOCKED ROTOR AMPS
48
63
73
48
63
73
f-\
/ S
_L_
:T ZT Z
T,: i _ i _
| NDOOR UN I T
OUTDOORUNIT
'/
_zzzzzzzzzzzzzzzzzzzzzzzzz_!_z2:2_zzzzzzzzzzzzzzzzzzzzzzzzzzzi::z2zzzzz
TB
2_ VAC ;_ELAY PCSO
(s N( 3}
RED
WH;
BRN
29 '_AC _EI Ay >CB)
I I i i IZ_ _ _ _ LJ j: i i
(3O
CONTRO LER
{S[ /f / ._
mI
::iLD POW:R :U_PL
?0 OUTD00R LJN:_
D:SCONNECT
B
C i Contactor
CC i Compressor Capacitor
CCH -Crankcase Heater
CCHT -Crankcase Heater Thermostat
COMP--
FC
Compressor
-Fan Capacitor
GND -Ground
IFM -Indoor-Fan Motor
OFM -Outdoor-Fan Motor
LEGEND
RVS i Reversing Valve Solenoid
SW
TB
TH i
--
--
Sweep Motor
Terminal Block
Thermistor/Thermostat
_
•
O
Terminal (Marked)
Splice
Terminal (Unmarked)
Terminal Block
....
Factory Wiring
Field Control Wiring
,......-.....
-----
Field Power Wiring
Accessory or Optional Wiring
NOTES:
1. If any of the original wire furnished must be replaced, it must be replaced with Type 90 ° C wire or its equivalent.
2. Wire in accordance with National Electrical Code (NEC) and local codes.
3. Thermistor wiring cable 32 ft long provided with indoor unit.
4. Compressor and fan motors are protected by internal thermal overloads.
5. Indoor unit shown with power source from outdoor unit.
Indoor unit may be wired to separate power source depending on service requirements.
Fig. 13Heat Pump System Wiring Schematic 40BNE018,024 Fan Coil with 38BNE018,024 Condensing Unit
/_ ,.' i J
INDOOR UNIT 0UTD00R UNIT riLl Si P / D
..................
2B
/w y_
\
.................................
;4 ','_C ?1, Y '(_17 h- _i
L/i!
,,c 8o I
C(}N ROLLER
9RN/YEL
BL t iB
F {EID POWER 5UPP[ Y
_o ou?oooR
UN!T
I}{SCONNECi
C -Contactor
CC
COMP-
-Compressor
Compressor
FC -Fan Capacitor
GND -Ground
Capacitor
IFM -Indoor-Fan Motor
OFM -Outdoor-Fan Motor
RVS -Reversing Valve Solenoid
SW -Sweep Motor
LEGEND
TB
TH
•
O
-Terminal Block
-Thermistor/Thermostat
Terminal (Marked)
Splice
Terminal (Unmarked)
[_ Terminal Block
--
.....
-----
Factory Wiring
Field Control Wiring
Field PowerWiring
Accessory or Optional Wiring
Fig. 14 i Heat Pump System Wiring Schematic 40BNE030 Fan Coil with 38BNE030 Condensing Unit
?
i u
]
NOTES:
1. If any of the original wire furnished must be replaced, it must be replaced with Type 90 ° C wire or its equivalent.
2. Wire in accordance with National Electrical Code (NEC) and local codes.
3. Thermistor wiring cable 32 ft long provided with indoor unit.
4. Compressor and fan motors are protected by internal thermal overloads.
5. Indoor unit shown with power source from outdoor unit.
Indoor unit may be wired to separate power source depending on service requirements.
r] i4 i
J
/ i f) [ pl A _'
J9 i_ i,J
?
J8
INDOOR UNIT OUTDOOR UNIT
/
}It} BPL it{}
CONrrToL b i77 NO
RE L
8R
=<
I
I
I
I
| i i i
FI{O P(},,, }7 <_U:>PLY
1o o 7oook tFJ{
NSCON\ C 4
8f_S
TB
C -Contactor
CC -Compressor Capacitor
COMP-
FC --
Compressor
Fan Capacitor
GND -Ground
IFM -Indoor-Fan Motor
OFM -Outdoor-Fan Motor
SW
TB
-Sweep Motor
-Terminal Block
TH
[_
•
O
-Thermistor/Thermostat
Terminal (Marked)
Splice
LEGEND
Terminal (Unmarked)
Terminal Block
--
....
,,.,,.,,,,.
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
NOTES:
1. If any of the original wire furnished must be replaced, it must be replaced with Type 90 ° C wire or its equivalent.
2. Wire in accordance with National Electrical Code (NEC) and local codes.
3. Compressor and fan motors are protected by internal thermal overloads.
4. Indoor unit shown with power source from outdoor unit.
Indoor unit may be wired to separate power source depending on service requirements.
Fig. 15Cooling Only System Wiring Schematic 40BNB018,024 Fan Coil with 38BNB018,024 Condensing Unit
INDOOR UNIT OUTDOOR UNIT
_2
J J7 i i i
CONYR I
{L C
_EO
]-
T[ i
\_
/" <
//
--FIE
ONROL
O SbPJ T
_ RTNG
13
K
RiD
_,HT
BRN
..... i i i
! wm
SEE NOT 4 ................/ io i
L_
K] = u ,, L_ iL i ,:
C -Contactor
CC
COMP-
-Compressor
Compressor
FC -Fan Capacitor
GND -Ground
Capacitor
IFM -Indoor-Fan Motor
OFM -Outdoor-Fan Motor
SW
TB
-Sweep Motor
-Terminal Block
CONIRO[i
GR_/YEL
R
B[(
RN/YI
BR
B
LEGEND
TH
@
•
0
-Thermistor/Thermostat
Terminal (Marked)
Splice
Terminal (Unmarked)
[_ Terminal Block mRI
FIELD o
POWER SUPPl
OUTDO0_ /JN T
DISCO! NECT
--
....
Factory Wiring
Field Control Wiring
,,,,,,,,,,,, Field Power Wiring
Accessory or Optional Wiring
8LU _i
NOTES:
1. If any of the original wire furnished must be replaced, it must be replaced with Type 90 ° C wire or its equivalent.
2. Wire in accordance with National Electrical Code (NEC) and local codes.
3. Compressor and fan motors are protected by internal thermal overloads.
4. Indoor unit shown with power source from outdoor unit.
Indoor unit may be wired to separate power source depending on service requirements.
Fig. 16 -- Cooling Only System Wiring Schematic 40BNB030 Fan Coil with 38BNB030 Condensing Unit
START-UP
System Checks
1. Conceal the tubing where possible.
2.
Make sine that the diainage tube slopes downward _dong its entire length.
3.
Ensure all tubing and connections are properly insulated.
4.
Fasten tubes to the outside wall.
5.
Seal the hole through which file cables and tubing pass.
6.
Connect the air conditioner to the power source and turn it on.
7.
Check all air conditioner operating modes.
Refer to
Owner's Manual for operating details.
INDOOR UNIT
1. Do all the remote controller buttons function properly?
2.
Do the display panel lights work properly?
3.
Does the air deflection louver function properly?
4.
Does the di'ainage work?
OUTDOOR UNIT
1. Are there unusual noises or vibrations during operation?
2.
Is noise, di'ain water or airflow fiom the unit likely to disturb the neighbors?
3.
Are there any gas leaks?
EXPLAIN
CUSTOMER,
MANUAL:
THE FOLLOWING ITEMS TO THE
WITH THE AID OF THE OWNER'S
1. How to turn the air conditioner on and off; selecting cooling, heating and other operating modes; setting a desired temperatme; setting the timer to automatically start and stop air conditioner operation; and the other features of the remote controller and display panel.
2.
How to remove and clean the air filter
3.
How to set the air deflection louvel:
4.
Explain cme and maintenance.
5.
Present the Owner's Manual and installation instructions to the customer.
CARE AND MAINTENANCE
The following may be perforlned by the equipment owner
38BNB,BNE Outdoor Units
40BNB, BNE Indoor Units
To avoid the possibility of electric shock, before performing any cleaning and maintenance operations, always turn off power to the system by pressing the mode button on the remote control until the display shows "OFE" and turn off the sepal'ate disconnect switch located near the unit. If the indoor unit is on a separate switch, be sure to turn this disconnect off as well.
Do not wash filter in water over 120 F (to avoid shrinkage).
Do not expose filter to fire (to avoid fire &image).
Do not expose filter to direct sunlight.
Clean filter more frequently when air is extremely dirty.
Do not attempt to clean or service components in control box.
To Clean the Indoor Unit Front Panel -If the
fi'ont panel of the unit becomes dirty or smudged, wipe the outside of the panel with a soil diy cloth. Use a mild liquid detergent and wipe off cmelhlly with a @ cloth.
To Clean Indoor Coil--To
clean file coil, remove indoor unit front panel and vacuum the coil fins, using care not to bend or dalnage fins.
LUBRICATION -- Tile indoor-fan, automatic air sweep, and the outdoor-fan motol_ _u'e factory lubricated and require no oiling.
Air Filters for 38BNB,BNE Outdoor Units and
40BNB, BNE Indoor Units
Before performing recommended maintenance, be sure unit main power switch is turned off. Failure to do so may result in electric shock or injury from rotating fan blade.
CLEANING COILS--Coil should be washed out with water or blown out with compressed all: Clean coil annually or as required by location and outdoor air conditions.
Inspect coil monthly and clean as required.
Fins are not continuous through coil sections.
Dill and debris may pass through first section, become trapped between the row of fins and restrict outdoor unit airflow. Use a flashlight to determine if dirt or debris has collected between coil sections.
Clean coil as follows:
1. Turn off unit power and install lockout tag.
2.
Using a gmden hose or other suitable equipment, flush coil from the outside to remove dirt. Be sure to flush _dl dirt and debris from di'ain holes in base of unit. Fan motors are waterproof.
12
Operating your system with dirty air filters may &image the indoor unit and, in addition, can cause reduced performance, intermittent system operation, fi_st build up on the indoor coil, and blown fuses. Inspect and clean or replace the air filters monthly.
TO REMOVE AIR FILTERS -- Remove filters by pulling them straight out.
TO CLEAN OR REPLACE FILTERS -Filters can be vacuumed or washed in wtum watec Shake filter to remove any excess watel: and replace by sliding filter behind grille until filter snaps in place. If the filter has begun to break down or is torn, replace it. Replacement filters are available through a loc_d de_del:
SERVICE
The following should be performed by a qualified service technician.
Clean Condensate Drains--Clean all drains and
drain pans at the start of each cooling season. Check the flow by pouring water into the drain.
Clean or Replace Drain Pan
-The drain pan should only be cleaned or replaced by a qualified service technician.
1. Place a plastic sheet on the floor to catch any water that may spill from the drain pan.
2.
Remove the intake grille and distribution assembly.
3.
Remove the condensate water in the drain pan by letting water drain into a 3-gallon bucket.
TROUBLESHOOTING (Tables 6-8, and Fig. 17)
Be sure to check for broken wires or loose cable lugs before troubleshooting systeln.
Table 6 -- Service Indicators
LAMP STATUS
Flashing*
1 Flash
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
INDICATION
Dirty filter
Faulty TH1 Sensor
Faulty TH2 Sensor
Low Pressure
High Pressure
Low Voltage
High Voltage
CORRECTION ACTION
Clean the filter.
Check the TH1 thermistor for correct resistance.
Check for proper connection.
Replace thermistor if necessary.
Check the TH2 thermistor for correct resistance.
Check for proper connection.
Replace thermistor if necessary.
Check system pressures.
Check refrigerant charge.
Check thermistors (TH1 and TH2) for correct resistance.
Check system pressures.
Check refrigerant charge.
Check thermistors (TH1 and TH2) for correct resistance.
Check operating voltage.
Check electrical connections.
Check operating voltage.
Check electrical connections.
*The Filter Indicator Lamp will flash repeatedly when the filter needs cleaning. The remainder of the table refers to the Service Indicator Light. Both lights are found underneath the grille cover.
For more information, refer to the Owner's Manual.
POWER LED.
OFF WHEN SYSTEM IS
OPERATING AND FLASHES
WHEN SYSTEM IS IN ERROR.
(DOES NOT INDICATE ERROR CODE)
CLEAN FILTER INDICATOR.
FLASHES AFTER 2500 HOURS
OF OPERATION
Fig. 17 -- Indicator Lights
OPERATION LED.
INDICATES ERROR
13
TEMPEATURE
(F)
64.4
66.2
68.0
69.8
71.6
73.4
75.2
77.0
78.8
80.6
82.4
84.2
86.0
87.8
89.6
91.4
93.2
95.0
96.8
98.6
44.6
46.4
48.2
50.0
51.8
53.6
55.4
57.2
59.0
60.8
62.6
-4.0
-2.2
-0.4
1.4
3.2
5.0
6.8
8.6
10.4
12.2
14.0
15.8
32.0
33.8
35.6
37.4
39.2
41.0
42.8
17.6
19.4
21.2
23.0
24.8
26.6
28.4
30.2
NOTE: Resistance tolerance _+3%.
TEMPERATURE
(c)
22
23
24
25
18
19
20
21
26
27
28
29
30
31
32
33
34
35
36
37
10
11
12
7
8
0
13
14
15
16
17
-20
-19
-14
-13
-12
-11
-18
-17
-16
-15
-10
-g
4
5
6
2
3
0
1
-4
-3
-2
-1
--8
-7
-6
-6
Table7 -- 40BNB/BNE Thermistor TH-1, TH-2, and TH-3 Temperature to Resistance Conversion
_+0.9
_+0.9
_+0.9
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.1
_+1.1
_+0.9
_+0.9
_+0.9
_+0.9
_+0.9
_+0.9
_+0.9
_+0.9
_+1.0
_+1.0
_+1.0
_+0.9
_+0.9
_+0.9
_+0.9
_+0.9
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
_+1.0
TEMPERATURE
TOLERANCE
(C)
_+1.1
_+1.1
_+1.1
_+1.1
_+1.1
_+1.1
_+1.1
_+1.1
_+1.1
_+1.1
_+1.0
_+1.0
_+1.0
_+1.0
•+1.6
•+1.6
•+1.6
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+2.0
•+2.0
•+1.6
•+1.6
•+1.6
•+1.6
•+1.6
•+1.6
•+1.6
•+1.6
•+1.8
•+1.8
•+1.8
•+1.6
•+1.6
•+1.6
•+1.6
•+1.6
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
•+1.8
TEMPERATURE
TOLERANCE
(F)
_+2.0
•+2.0
•+2.0
•+2.0
•+2.0
•+2.0
•+2.0
•+2.0
•+2.0
•+2.0
•+1.8
•+1.8
•+1.8
•+1.8
4.675
4.508
4.347
4.193
4.046
3.904
3.767
3.637
3.511
3.391
3.275
3.164
6.271
6.042
5.822
5.611
5.408
5.214
5.028
4.850
8.526
8.197
7.883
7.583
7.296
7.022
6.761
6.510
11.75
11.28
10.83
10.40
9.986
9.595
9.222
8.866
16.44
15.75
15.10
14.47
13.87
13.31
12,77
12.25
MINIMUM
RESISTANCE
(K_)
30.89
29.46
28.12
26.84
25.64
24.49
23.40
22,38
21.40
20.47
19.59
18.74
17.94
17.17
4.821
4.650
4.486
4.329
4.179
4.033
3.894
3.760
3.631
3.508
3.390
3.276
6.481
6.242
6.013
5.793
5.581
5.379
5.185
5.000
8.840
8.496
8.167
7.853
7.553
7.267
6.993
6.731
12.22
11.73
11.25
10.80
10.370
9.960
9.569
9.196
17.16
16.43
15.74
15.08
14.46
13.86
13.29
12.74
MEAN
RESISTANCE
(K_)
32.44
30.93
29.51
28.16
26.88
25.66
24.52
23.43
22,39
21.41
20.48
19.59
18.74
17.93
4.968
4.793
4.626
4.466
4.312
4.163
4.020
3.884
3.752
3.626
3.505
3.389
6.693
6.444
6.208
5.978
5.755
5.544
5.343
5.150
9.157
8.797
8.453
8.125
7.812
7.513
7.227
6.954
12.70
12.18
11.68
11.21
10.76
10.33
9.921
9.530
17.90
17.13
16.40
15.71
15.05
14.42
13.83
13.25
MAXIMUM
RESISTANCE
(K_)
34.05
32.45
30.94
29.51
28.15
26.87
25.66
24.50
23.41
22.38
21.40
20.45
19.56
18.71
14
TEMPEATURE
136.4
138.2
140.0
141.8
143.6
145.4
147.2
122.0
123.8
125.6
127.4
129.2
131.0
132.8
134.6
149.0
150.8
152.6
154.4
156.2
158.0
(F)
100.4
102.2
104.0
105.8
107.6
109.4
111.2
113.0
114.8
116.6
118.4
120.2
TEMPERATURE
NOTE: Resistance tolerance _+3%.
62
63
64
58
59
60
61
54
55
56
57
50
51
52
53
68
69
70
65
66
67
(C)
38
39
44
45
46
47
40
41
42
43
48
49
Table7 -- 40BNB/BNE Thermistor TH-1, TH-2, and TH-3 Temperature to Resistance Conversion (cont)
_+2.5
_+2.5
_+2.5
_+2.7
_+2.7
_+2.7
_+2.7
_+2.3
_+2.3
_+2.3
_+2.3
_+2.3
_+2.5
_+2.5
_+2.5
_+2.7
_+2.9
_+2.9
_+2.9
_+2.9
_+2.9
TEMPERATURE
TOLERANCE
(F)
_+2.0
_+2.0
_+2.0
_+2.0
_+2.0
_+2.2
_+2.2
_+2.2
_+2.2
_+2.2
_+2.3
_+2.3
_+1.4
_+1.4
_+1.4
_+1.5
_+1.5
_+1.5
_+1.5
_+1.3
_+1.3
_+1.3
_+1.3
_+1.3
_+1.4
_+1.4
_+1.4
_+1.5
_+1.6
_+1.6
_+1.6
_+1.6
_+1.6
TEMPERATURE
TOLERANCE
(C)
_+1.1
_+1.1
_+1.1
_+1.1
_+1.1
_+1.2
_+1.2
_+1.2
_+1.2
_+1.2
_+1.3
_+1.3
1.597
1.549
1.503
1.458
1.414
1.372
1.332
2,055
1.990
1.928
1.867
1.809
1.753
1.699
1.647
1.293
1.255
1.219
1.184
1.150
1.117
MINIMUM
RESISTANCE
(K£_)
3.058
2,956
2,857
2,762
2,671
2,583
2,498
2,417
2,339
2,264
2,192
2,122
1.665
1.615
1.567
1.521
1.476
1.432
1.391
2.137
2.070
2.006
1.943
1.883
1.826
1.770
1.717
1.350
1.311
1.274
1.237
1.202
1.168
MEAN
RESISTANCE
(K£_)
3.167
3.062
2.961
2.864
2.770
2.679
2.593
2.509
2.429
2.352
2.227
2.206
1.734
1.683
1.633
1.585
1.539
1.494
1.451
2,220
2,151
2,085
2,021
1.959
1.900
1.842
1.787
1.409
1.369
1.330
1.292
1.256
1.221
MAXIMUM
RESISTANCE
(K_)
3.277
3.169
3.066
2,966
2,870
2,777
2,688
2,602
2,520
2,441
2,364
2,291
Table 8 -- General System Troubleshooting Guide
SYMPTOM
Unit Fails to Start.
Only Indoor Fan Works when
Cooling or Heating is Desired.
NOTE: Indoor fan runs continuously
Low Capacity.
in cooling mode.
Only Indoor Fan Motor and
Outdoor Fan Motor are Working.
No Cooling and/or Heating Takes
Place.
No Air Supply at Indoor Unit
(Compressor Operates).
In Heat Mode, Only Compressor
Runs. Outdoor and Indoor Fan
Motors are Stopped.
Water Accumulates and
Overflows from Evaporator
Drain Pan.
Unit Does Not Operate in Desired
Mode.
The Unit Receives from Other the Remote
Remote
Control
Interference
Control
Interferes with Other Instruments.
or
PROBABLE CAUSE
Power supply to unit not connected (POWER LED
Off).
Fuse blown (POWER LED Off).
ON/SEND button has not been pressed.
Indoor unit does not receive transmitted commands.
The selected mode is Fan Only, or Cool when heating is desired.
Temperature
Cool mode).
is set to a value which is too high (in
CORRECTIVE ACTION
Check for proper connection of power at disconnect.
Reset circuit breaker or replace line fuse.
Press ON/SEND button on remote control.
Make sure that nothing is blocking the remote control transmission to the unit.
Check if the remote control is in the desired mode. If not, select the correct mode (refer to User manual).
Also note that every 15 minutes (maximum) the com-
)ressor will be switched minimally on for 3 minutes.
Observe the temperature setting on the remote control.
Also note that each 15 minutes (maximum), the com-
)ressor will be switched on minimally for 3 minutes.
Switch off power and try again after one hour.
Overload safety device on compressor is cut out due to high temperature.
Compressor run capacitor is burnt.
Compressor winding shorted.
Indoor fan motor is blocked or turns slowly.
Indoor fan motor capacitor
Indoor fan motor winding is burnt.
In Heat mode: Delayed start for indoor fan motor.
Clogged air filters.
Lack of refrigerant.
Ice formation on the evaporator coil.
Clogged air filters.
A/C operating is burnt.
in defrost cycle.
Replace compressor run capacitor.
Replace compressor.
1. Check voltage.
Repair wiring if necessary.
2. Check indoor fan wheel if tight on motor shaft.
Tighten if necessary.
Replace indoor fan motor capacitor.
Replace indoor fan motor.
Normal software delay (maximum of 20 sec).
Clean filters.
Unit must be charged (according to the nameplate) after localizing the gas leak.
Clean filters.
Wait 10 minutes (maximum) until the unit resumes normal operation.
Drain pan pipe or hose is clogged drain pan is clogged,
The unit is in the Auto. (emergency)
Faulty remote control settings.
Remote control low battery.
Common Infrared Code.
or the spout of mode.
Disassemble plastic drain pipe from spout of evaporator drain pan. Flush with clean water.
Push button once to cancel Auto. (emergency) mode.
1. If remote control symbols respond to the commands correctly, check the unit ID Code (Standard or Alternative). Refer to "Changing Unit ID Code" in the
Owner's Guide and Remote Control DIP switch 3 setting in the Owner's Manual.
2. If Cool commands are OK, but Heat symbol is skipped on LCD, refer to Remote Control DIP switch
7 setting in the Owner's Manual.
3. Replace remote control.
Replace remote control batteries.
Modify the Remote Control IR transmission code.
Refer to "Changing Unit ID Code" and to Remote
Control DIP switch 3 setting in the Owner's Manual.
Copyright 2005 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications
PC 111 Catalog No. 533-80122 Printed in U.S.A.
or designs without notice and without incurring obligations.
Form 38B/40B-4SI Pg 16 5-05 Replaces: 38B/40B-1SI,
38B/40B-2Sl
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