Installation and Maintenance Instructions

Installation and Maintenance Instructions
40WAH024-048
High-Static Ducted Indoor Unit for
Mini Variable Refrigerant Flow (VRF) Systems
Installation and Maintenance
CONTENTS
SAFETY CONSIDERATIONS
.....................
GENERAL ......................................
INSTALLATION
................................
Step 1 -- Unpack and Inspect Units ..............
• PROTECTING
UNITS FROM DAMAGE
• PREPARING
JOBSITE FOR UNIT INSTALLATION
• IDENTIFYING
AND PREPARING
UNITS
Step 2 -- Position the Unit .......................
Step 3 -- Mount the Unit .........................
• INSTALLING
HANGER BOLTS
• MOUNTING
UNIT
• INSTALLING
DUCTS
Step 4•
•
Connect Piping .........................
PIPING
PIPING
Step 5 -- Complete Electrical Connections
Step 6Position and Connect Controller
• WIRED REMOTE CONTROLLER
Page
1,2
2-6
6-11
6
7
7
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work
is completed.
8
.......
......
8
11
WIRED
REMOTE
CONTROLLER
(NON-PROGRAMMABLE)
•
Recognize
safety information.
This is the safety-alert
symbol (z_)- When this symbol is displayed on the unit and in
instructions or manuals, be alert to the potential for personal
injury. Installing, starting up, and servicing equipment can be
hazardous due to system pressure, electrical components, and
equipment location.
CONDENSATE
REFRIGERANT
(PROGRAMMABLE)
•
Instructions
CENTRAL
CONTROLLER
START-UP
.....................................
Pre-Start Check .................................
System Operation
Check .......................
MAINTENANCE
...............................
TROUBLESHOOTING
.........................
Replacement
Parts .............................
SAFETY
11,12
11
12
12,13
13-15
15
CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or
other conditions which may cause death, personal injury or
property damage. The qualified installer or agency must use
factory-authorized
kits or accessories
when modifying this
product.
Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included
in literature and attached to the unit. Consult local building
codes and the current editions of the National Electrical Code
(NEC) ANSI!NFPA
(American National Standards Institute/
National Fire Protection Association)
70. In Canada, refer to
the current editions of the Canadian Electrical Code CSA (Canadian Standards Association)
C22.1.
When installing the equipment in a small space, provide
adequate
measures
to avoid refrigerant
concentration
exceeding safety limits due to refrigerant leak. In case of
refrigerant
leak during installation,
ventilate the space
ilmnediately. Failure to follow this procedure may lead to
personal injury.
DO NOT USE TORCH to remove any component.
contains oil and refrigerant under pressure.
To remove a component, wear protective
gles and proceed as follows:
a. Shut off electrical
System
gloves and gog-
power to unit.
b. Recover refrigerant
to relieve all pressure from system using both high-pressure
and low pressure ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic
gases.
d. Cut
and
any
for
component
connection tubing with tubing cutter
remove component from unit. Use a pan to catch
oil that may come out of the lines and as a gage
how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when necessary. Oil can ignite when exposed to torch flame.
Failure to follow
injury or death.
these procedures
may result in personal
Understand the signal words -- DANGER. WARNING,
and CAUTION. DANGER identifies the most serious hazards
which will result in severe personal
injury or death.
WARN1NG signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices,
which would result in minor personal injury or product and
property damage.
Manufacturer reserves the right to discontinue, or change at any time, specifications
Catalog No. 04-53400014-01
Printed in U.S.A.
Form 40WAH-1SI
or designs without notice and without incurring obligations.
Pg 1
6-15
Replaces:
New
GENERAL
The 40WAH high-static ducted indoor fan coil unit is an appropriate choice for job sites with higher static requirements.
DO NOT re-use compressor oil or any oil that has been
exposed to the atmosphere. Dispose of oil per local codes
and regulations. DO NOT leave refrigerant system open to
air any longer than the actual time required to service the
equipment. Seal circuits being serviced and charge with
dry nitrogen to prevent oil contamination
when timely
repairs cannot be completed. Failure to follow these procedures may result in damage to equipment. For information
about replacement oil type and viscosity, see the Mini VRF
Outdoor Unit installation instructions.
The equipment is initially protected under the manufacturer's standard warranty; however, the warranty is provided under the condition that the steps outlined in this manual for initial inspection, proper installation, regular periodic maintenance, and everyday operation of the unit be followed in detail.
This manual should be fully reviewed in advance before initial
installation, start-up and any maintenance. Contact your local
sales representative or the factory with any questions BEFORE
proceeding.
See Fig. 1 for model number nomenclature.
Table 1 lists
physical data for each unit size. Figures 2 and 3 show unit dimensions. See Fig. 4-7 for fan performance curves.
4O
WA
H
009 ---
3
TT
Voltage
(V-Ph-Hz)
3 -- 208/230-1-60
Equipment Type
40 -- indoor Unit
Product
WA-Model
Blank
Type
Mini VRF
Capacity
024
030
036
048
Type
H -- High Static Ducted
LEGEND
VRF
--
Variable Refrigerant
Flow
Fig. 1 -- Model Number Nomenclature
-----
(Btuh)
24,000
30,000
36,000
48,000
TableI
024
UNIT 40WAH
-- 40WAH Physical Data
I
030
COOLING CAPACITY (Btuh)
HEATING CAPACITY (Btuh)
INDOOR FAN MOTOR
I
24,000
27,000
30,000
34,000
435
430
2
3
t
Input (W)
INDOOR COIL
Number of Rows
36,000
42,000
048
}
48,000
54,000
Fin Type
Tube Diameter, OD (in.)
Tube Type
Number of Circuits
INDOOR AIRFLOW (cfm)
Low
Medium
High
INDOOR EXTERNAL STATIC
PRESSURE, High (in. wg)
INDOOR NOISE LEVEL (dBA)
Low
Medium
High
UNIT DIMENSIONS,
Aluminum with Hydrophilic
3/8
I
Liquid Side, OD
Suction Side, OD
CONNECTING WIRING
Power Wiring
Signal Wiring
DRAINAGE WATER PIPE
DIAMETER, OD (in.)
CONTROLLER
LEGEND
Electronic Expansion Valve
National Electrical Code
3
4
Coating
7
I
7
I
7
690
910
1010
1290
730
780
970
1030
1140
1210
1500
1730
0.1 to 0.8
0.15 to 0.8
0.2 to 0.8
0.2 to 0.8
44.5
47
I
47
48
49
52
I
49
52
46
48
DESIGN PRESSURE,
High/Low (psig)
REFRIGERANT PIPING (in.)
555
Copper Tube with Inner Groove
3
W x H x D (in.)
PACKING DIMENSIONS,
Wx H x D (in.)
NET/GROSS WEIGHT (Ib)
REFRIGERANT TYPE
EXPANSION DEVICE
430
16
Fin Spacing (fins/in.)
---
I
AC Motor
Type
EXV
NEC
036
208/230-1-60
POWER SUPPLY (V-Ph-Hz)
95/107
I
m
50
53
37 1/2 x 16 1/2 x 27 1/4
51 1/4 x 16 1/2 x 27 1/4
43 x 17 3/4 x 30 1/4
56 1/2 x 17 3/4 x 30 1/4
105/118
I
R-410A
EXV
105/118
150/165
m
650/250
3/8
5/8
Sized per NEC and Local Codes Based on Nameplate
3-Core Shielded Wire
1 1/4
Wired Controller
Electrical Data
FRONT VIEW
37-1/2
3-1/_1
33-3/4
8-1/2
I
÷
'T
C
_E
+
e
c
e
÷
÷
__
.L_
LEFT VIEW
REFRIGERANT
FLARE
PIPE
CONNECTION,
3/8
31-1/2
ELECTRICAL
CONTROLBOX
_2
lAIR
RIGHT VIEW
INLET
4 - _2in. x 1 SUSPENSION BOLT HOLES
_o
F
4_
REFRIGERANT
FLARE
PIPE
CONNECTION,
5/8
-S
TOP VIEW
E
AIR OUTLET
DUCT FLANGE
+1
i
i _'m
LrL
SAFETY DRAIN
PIPE
AIR OUTLET !
SAFETY DRAIN
PIPE
CONNECTION
CONNECTION
REAR
VIEW
,s
co
+
q--
g5/'8
NOTE: All dimensions
t
28
2-5/
shown in inches.
Fig. 2 -- 40WAH024-036
Dimensions
+
10
1-3/8
FRONT VIEW
I 5-3/81
36-5/8
=
I
=o
o=
=
ELECTRICAL
CONTROL BOX
4-
LEFTVIEW
1/2 x 1 SUSPENSION
BOLT
HOLES
DRAIN PIPE
CONNECTION
REFRIGERANT
FLARE
CONNECTION,
REFRIGERANT
FLARE
t]l
CONNECTION,
PIPE
IIAIR
i
,5-3/8,
31-1/2
%'
#
E
DUCT
FLANGE
,
i
FLANGE
\
'
_IEI" ._r
F
2
\
-I ,_r
15_3/4
_3-1/2
_[I
_2-3/4
I
DUCT CONNECTION
TOP VIEW
DUCT
SAFETY DRAIN
PIPE
CONNECTION
_l_l_
4,-n
_;_rL"°_ES
FO&"_[_-
\AIRINTAKE
_:z
5/8
RIGHTVIEW
45-1/4
3/8
PIPE
INLET
4
'
14
=H
AIR OUTLET
DUCTCONNECTION
_I_.
/
t
T
_ i_
15_3/4
-I-
T
45-1/4
|
51-1/4
•
_-" '_
/ ,,_"
-I
I-l
,[J
L_-U,
I/
II
AIR OUTLET
.
IIIIIII
REAR
VIEW
42_1/4
2-1/2
NOTE: All dimensions shown in inches.
Fig. 3 -- 40WAH048 Dimensions
_
L 6-3/4--1
0.9
0.9
HIGH SPEED
HIGH SPEED
d
0.8
LU
0.7
co
09
0.6
,
rT"
,
_0.8
d
_" 0.7
//
X_
UJ
0.6
DIUM SPEED
0.5
nO:: 0.5
©
©
_OW
0.4
o_
.J
0.3
<
zO_
0.2
SPEED
0.3
iii
x
0.1
\\\
LIJ
o
400
600
AIRFLOW
Fig. 4-
0.4
Z
0.2
X
0.1
o
800
800
1400
(cfm)
1800
2300
AIRFLOW (cfm)
40WAH024 Fan Performance Curves
Fig. 7 -- 40WAH048 Fan Performance Curves
0.9
HIGH SPEED
LU
09
O9
LtJ
INSTALLATION
,\\\/
t-:
0.7
Step 1 -- Unpack
XX_X
MEDIUM SPEED
\\)
0.6
and Inspect Units -- Units are
packaged for shipment to avoid damage during normal transit
and handling. It is the receiving party's responsibility to inspect
the equipment upon arrival. Any obvious damage to the carton
and/or its contents should be reported on the bill of lading and a
claim should be filed with the transportation company and the
factory. Unit should always be stored in a dry place, and in the
proper orientation as marked on the carton.
¢x_/
©
d)
0.3
J
<
Z
r"r
LLI
0.2
04
0.1
To avoid equipment damage, do not lift unit by the drain
pipe or refrigerant piping. Unit should be lifted using the
mounting brackets.
LIA
0
650
850
1050
Fig. 5 -- 40WAH030 Fan Performance Curves
0.9
HIGH SPEED
_: 0.8
_"
0.7
0.6
0.5
©
PROTECTING
UNITS FROM DAMAGE -- Do not apply
force or pressure to the coil, piping, or drain stub-outs during
handling. All units should be handled by the chassis or as close
as possible to the unit mounting point locations.
0.4
0.3
f_
0.2
0.1
0
After determining the condition of the carton exterior, carefully remove each unit from the carton and inspect for hidden
damage. Check to make sure that items such as thennostats,
controller etc. are accounted for whether packaged separately
or shipped at a later date. Any hidden damage should be recorded, a claim should be filed with the transportation company, and the factory should be notified. In the event a claim for
shipping damage is filed, the unit, shipping carton, and all
packing must be retained for physical inspection by the transportation company. All units should be stored in the factory
shipping carton with internal packaging in place until installation.
800
10_00
AIRFLOW
1200
1400
(cfm)
Fig. 6 -- 40WAH036 Fan Performance Curves
The unit must always be properly supported. Temporary
supports used during installation or service must be adequate to
hold the unit securely. To maintain warranty, protect units
against hostile enviromnents
(such as rain, snow or extreme
temperature),
theft, vandalism, and debris on jobsite. Equipment covered in this manual is not suitable for outdoor installations. Do not allow foreign material to fall into drain pan. Prevent dust and debris from being deposited on motor, fan wheels
and coils. Failure to do so may have serious adverse effects on
unit operation and in the case of motor and blower assembly,
may result in ilmnediate or premature failure. Failure of any
unit caused by deposits of foreign material on the motor or
blower wheels will not be covered by the manufacturer's
warranty.
Some
unitsand/or
jobconditions
mayrequire
some
formoftemporary
covering
duringconstruction.
PREPARING
JOBSITE
FORUNITINSTALLATION
-Tosavetimeandtoreduce
thepossibility
ofcostlyerrors,
set
upa complete
sample
installation
inatypicalroomatjobsite.
Check
allcriticaldimensions
suchaspipe,wire,andductconnections
requirements.
Refertojob drawings
andproduct
dimension
drawings
asrequired.
Instructall trades
in their
partsoftheinstallation.
Unitsmustbeinstalled
incompliance
withallapplicable
localcode
requirements.
IDENTIFYING
ANDPREPARING
UNITS-- Be sure
powerrequirements
matchavailable
powersource.
Referto
unitnameplate
andwiringdiagram.
Inaddition:
• Check
alltagsonunittodetermine
if shipping
screws
are
toberemoved.
Remove
screws
asdirected.
Rotatethefanwheelby handto ensure
thatthefanis
unrestricted
andcanrotatefreely.Checkfor shipping
damage
andfan obstructions.
Adjustblowermotoras
required.
Step 2 -- Position
the Unit
Units must not be installed where they may be exposed to
potentially
explosive or flalmnable
atmosphere.
If this
instruction is not followed exactly, a fire or explosion may
result, causing property damage, injury, or loss of life.
Install the unit in a location that meets the following requirements:
Allow adequate space for installation, service clearance,
piping and electrical connections,
and necessary ductwork. For specific unit dimensions,
refer to Table 1 and
Fig. 2 and 3. Allow clearance according
to local and
national codes.
•
Confirm that the ceiling is able to support
the unit. See Table 1 for nominal weight.
•
There should be enough room within the false ceiling for
installation and maintenance
(see Fig. 8).
•
•
The false ceiling should be horizontal and leveled.
Install the unit in a location within the room that allows
uniform air flow in all directions.
INDOOR
the weight
UNIT
of
Select the unit position with the following points in mind:
•
The unit should be installed in a position that is suitable
to support the total weight of the unit, refrigerant piping
and condensate.
Proper access should be provided for maintenance
for
refrigerant
piping, EXV (electronic
expansion
valve),
electrical box, and condensate pump. A 2-ft clearance is
recoimnended
all around the unit.
•
The unit should
obstruction.
not be positioned
directly
above
any
The unit must be installed square and level.
The condensate
drain should have sufficient downward
slope (1 in. per 100 in.) in any horizontal run between
unit and drain. Maximum
condensate
lift is 29 1/2
inches.
IMPORTANT:
Be sure that the ceiling grid is supported
separately from the unit. The ceiling grid must not be
supported by an part of the unit or any associated wiring or piping work.
Step 3-- Mount the Unit
INSTALLING HANGER BOLTS -- Install the hanger bolts
at the locations shown in Fig. 2 and 3 (top view). Use 3/s-in. allthreaded rod. For unit weight, see Table 1.
MOUNTING UNIT -- The unit can now be lifted on to the
hanging rods for mounting.
1. Use rods and fasteners to suspend the unit at the factoryprovided mounting holes with rubber grolmnets.
2. Adjust the height of the unit until the bottom is level within the false ceiling, with adequate space to provide sufficient pitch for the drain.
3. Secure the unit in position with locknuts and washers on
both sides of the mounting bracket. Ensure that the
threaded rod does not protrude more than 2 in. below the
mounting brackets as shown in Fig. 9.
THREADED ROD < 2 in.
Fig. 9 -- Threaded Rod
FALSECEILING /
Fig. 8 -- False Ceiling
Installation
INSTALLING DUCTSConnect the return and supply
ducts to the duct collars provided on the unit. Ensure that there
is adequate distance between the supply and return diffusers to
maintain acceptable air circulation within the space.
The filter is located on rear or bottom of the return side of
the unit, depending on the return air inlet arrangement.
Step 4 E Connect Piping
CONDENSATE PIPINGThe unit is supplied with a
11/4-in. OD drain connection to connect copper or PVC drain
piping. When installing condensate piping, follow these recommendations:
• A drain trap may be required by local codes and is recommended for odor control.
The differential inlet-to-outlet height must be at least
1 in. wg greater than the total static pressure of the unit.
The differential height of the outlet to the bottom of the
trap must be equal to or greater than the total static pressure of the unit. Provide a trap of at least 2 in. near the
end of the drain line to prevent odors. See Fig. 10.
The refrigeration
piping starts at the indoor unit and ends
at the outdoor unit.
The number of bends in the refrigeration piping must be
fewer than 15.
• The refrigerant piping should be dry and free of dust and
other impurities.
• The bending angle of the refrigerant pipe should not
exceed 90 degrees and the bending radius should be as
large as possible to prevent any breakage in piping.
• Use proper cutting and flaring tools to avoid leakage.
• Before insulating the suction and liquid refrigeration
pipes, perform pressure and leak tests. For details, see
the outdoor unit installation manual. Insulating both suction and liquid refrigerant pipes is recommended.
• Vacuuming and charging of the system should be carried
out as described in the outdoor unit installation manual.
Step 5 E Complete Electrical Connections
Installation of wiring must conform with local building codes
and with National Electric Code ANSI/NFPA 70, current editions. Units must be electrically grounded in conformance with
the code. In Canada, wiring must comply with CSA C22.1,
Electrical Code.
MIN
CONDENSATE
PAN STUB-OUT
Fig. 10-
Drain Trap
• Condensate piping should slope downward in the direction of condensate flow, with a minimum gradient of
1 in. per 100 inches.
• When multiple units are connected to a common condensate drain, ensure that the drain is large enough to accommodate the volume of condensate from all units. It is also
recommended to have an air vent in the condensate piping to prevent air lock.
• Condensate piping must not be installed where it may be
exposed to freezing temperatures.
REFRIGERANT PIPING
When connecting from an indoor unit to an outdoor unit,
the isolation valve at the outdoor unit should be in the
closed position throughout the refrigerant piping process.
Failure to follow this procedure may result in equipment
damage.
When connecting from an indoor unit to an outdoor
follow these procedures:
unit,
•
Maximum elevation differential (indoor to outdoor) and
length of refrigerant piping is 33 ft. If this is exceeded
consider mounting
the outdoor unit above the indoor
unit.
•
Refrigerant
piping connection between indoor and outdoor units should be performed
once the units are
secured at their respective installation locations.
Electrical shock can cause personal injury and death. Disconnect power supply before making wiring connections.
There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until
work is completed.
All units must be wired strictly in accordance with the wiring diagram furnished with the unit. Any wiring different
from the wiring diagram could result in personal injury and
property damage.
Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature rating of at least 105 C.
Ensure supply voltage to the unit, as indicated on the serial
plate, is not more than 10% over the rated voltage or 10%
under the rated voltage.
Failure to follow these recolr_nendations
equipment damage.
may result
in
This equipment in its standard form is designed for an electrical supply of 208/230-1-60. Any damage to or failure of
units caused by incorrect wiring or voltage is not covered by
warranty.
Electric wiring must be sized to carry the full load amp
draw of the motor, starter, and any other controls that are used
with the unit. See Table 2 for electrical data.
Table 2 -- 40WAH Electrical Data
After the pipe work is complete, the electrical supply can be
connected by routing the cable through the appropriate casing
holes or knockouts and connecting the supply and ground cables to the unit's power terminal.
POWER SUPPLY
40WAH UNIT SIZE
MCA
MOPD
024
2.4
15
030
2.5
15
036
2.5
3.0
15
15
048
Be sure the power wiring and control wiring do not cross, as
this might cause disturbance on the controls side. See Fig. 11
and 12 for wiring diagrams.
NOTE: The indoor unit requires its own power supply. Indoor
units are not powered through outdoor units.
LEGEND
MCA
MOPD
---
Minimum Circuit Amps
Maximum Overcurrent
Protective Device
o T o.
XP2 XS2
DISPLAY
BOARD
I_
CONTROLLER
MODULE
//_
[
I
I
I
I GROUND
0Nll
ON5
,
= ON20
= ,
ON15
ON oN ON
ION1
'_DOMT?ML
(WHITE)
ONtO
I
_
CONTROLLERI
(YELLOW)
l°i
_1 ONMOWEM_S
F-]
BLACK
IJ_ORANOE
CN13
I
I
I
MAIN CONTROL BOARD
0N12E
XS1 XPI r .............
= WEEKLY TIMER
J
P31j
CN17[
ION2
RED
,
'.21R2.°°".
!R°_.?2.
i
CNg[
:E
BN4
CN6
CN7
ON8
N
BLUE
Y/G
GROUND
XTI
I
x
B[
E
co
)
o.
.__i
INDOOR POWER
,=_
_=_
GROUND
WHI TE (GRAY)
LEGEND
C
CS
EEV
FM
PUMP
T1
T2
T2B
TR
XP1-8
XSl-8
XT1-2
-------------
Fan Capacitor
Water Level Switch
Electronic Expansion Valve
Indoor Fan
Pump Motor
Inlet Air Temperature
Coil Temperature
Evap. Outlet Temperature in Cooling Mode
Transformer
Plug
Jack
Terminal Block
Optional Component or Field Wiring
NOTE: Field wiring must use copper conductors only.
Fig. 11 -- 40WAH024-036
Typical Wiring Diagram
CONNECT
WIRED
TO
CONTROLLER
' CONNECT
TO
'.OUTDOOR
UNiT
m
WHITE
=
IMTEMrMDE
_TR?;-- -,
XP2
L
E
F-
m
I _l
.
, ,:,
i
ON I 1
CNI
ON5
=
OH
ON
I
"
H
0N15
ON
(WHITE)
J1
ON
lu_u_!luu_!l_l
I11
_D
i
:_?.xs2..
I
,.,
ON20
XS2
_ .....
_
ONIO
n...........
(YELLOW_
POWER S
_
r=
/
'
I_1
=l
_ORANGE
BH_BL
J
151
_
BLACK
O_A,
CN13
i
GROUND
I,==
MAIN CONTROL BOARD
i
c.12[
i
CN9 [
RY7
RY6
RY5
ON6
WHITE
RED
CN7
CN8
BLACK
XT2 _
, CONNECT
TO
, CONNECT
TO
, WJ?ED
CO,T?OLLER,
OUTDOOR
UNIT
Y/G
INDOOR POWER
_GROUND
WHI TE (GRAY)
LEGEND
C
CS
EEV
FM
PUMP
T1
T2
T2B
TR
XP1-8
XS1-8
XT1-2
m
---
-----
Fan Capacitor
Water Level Switch
Electronic Expansion Valve
Indoor Fan
Pump Motor
Inlet Air Temperature
Coil Temperature
Evap. Outlet Temperature in Cooling Mode
Transformer
Plug
Jack
Terminal Block
Optional Component or Field Wiring
NOTE: Field wiring must use copper conductors only.
Fig. 12-
40WAH048 Typical Wiring Diagram
10
Step 6 -- Position
and Connect
Wired controllers should be installed
tains good temperature control:
approximately
•
Do not position
thermostat
where it can be directly
affected by the unit's discharge airstream.
Avoid external walls and drafts from windows and doors.
INDOOR UNIT
DISPLAY PANEL
48 in. above floor
•
Avoid positioning
near
restrict air movement.
•
Avoid heat sources such as direct sunlight,
mer switches, and other electrical devices.
and
curtains
_" 5-CORE
CABLE
SHIELDED
CABLE
heaters,
5-CORE
4-PIN CONNECTOR
FROM ELECTRICAL
CABLE
dim-
WIRED
CONTROLLERBAcK
--I
@
Fig. 15- Wired Remote Controller
(Non-Programmable) Wiring
CENTRAL CONTROLLER-The central controller
is
connected to the indoor unit through outdoor unit with 3-core
shielded cable (see Fig. 16). For setup instructions, refer to the
controller installation manual.
BOX
/2.
O
Fig. 13- Wired Remote Controller
(Programmable) Wiring
INDOOR
S-CORE
as these
WIRED
REMOTE
CONTROLLER
(PROGRAMMABLE) -- To connect a progralmnable
wired remote controller
(thermostat) to the indoor unit, use 4-core shielded cable and 4pin connector from electrical box of indoor unit (see Fig. 13
and 14). For setup instructions, refer to the controller installation manual.
WIRED REMOTE
CONTROLLER
BOX
N
Position
level.
shelves
INDOOR UNIT
ELECTRIC CONTROL
that main-
•
•
the thermostat
Controller
in a position
O
UNIT
ELECTRICA_
X
BOARD
CONTROL_
4cOOkE
_
Y
E
F1 F2
O
TO INDOOR
/__SHIELDED
E
FORCED
ON
SWITCH
NOT USED--
BACK OFJ--_
[
_J
C
'
L24VAC
EMERGENCY
STOP
SWITCH
Fig. 16 -- Central Controller (Back)
_
Fig. 14- Wired Remote Controller
(Programmable) Wiring
WIRED
MABLE)controller
cable and
For setup
manual.
R
_Q
i
UNIT
i
_'_P_
--J
X,Y,E -DAISY CHAIN
CONTROLLER
_P _
START-UP
Pre-Start
REMOTE
CONTROLLER
(NON-PROGRAMTo connect non-progralrnnable
wired remote
(thermostat) to the indoor unit, use 5-core shielded
5-pin connector from unit display panel (see Fig. 15).
instructions, refer to the controller
installation
Check _
Once installation is complete,
make
the following pre-start checks:
1. All indoor and outdoor units are properly installed.
11
2.
All piping and insulation
3.
All electrical connections
properly terminated.
is complete.
4.
All condensate
5.
The power supply is of the right voltage and frequency.
6.
The units are properly
rent electrical codes.
7.
Suction and liquid
sition.
(both power
and control)
are
drains are installed correctly.
grounded
line service
in accordance
valves
with cur-
are in open po-
System Operation Check -- Once
and pre-start checks are completed,
1. Using remote controller, select cooling
to check the operation of the system.
2.
While the system is m operation,
indoor umt:
a.
the
installation
2.
Remove the screws
shown in Fig. 17.
3.
Disconnect
4.
The fan motor assembly is mounted on the front panel.
Remove the screws on the front panel as shown in
Fig. 17.
follow these steps:
or heating mode
check the following on
holding
the
reinforced
panel
as
the motor wiring from the control box.
Switches or buttons on the remote controller are easy to
push.
b. Indicator light is showing
error is indicated.
normal
operation
and no
FAN ASSEMBLY
SCREWS
c. Swing mode of air louvers is working (if applicable to
unit).
FILTER
d. Dram pump operation is normal (if applicable).
e. No abnormal vibration or noise is noticed.
3.
MOTOR
ASSEMBLY
While the system is m operation, check the following on
outdoor unit:
a. No abnormal vibration or noise is noticed.
b. Condenser
fan is m operation.
SAFETY
c. Indicator light is showing normal operation and no
error is indicated.
DRAIN
TRAY
SAFETY
TRAY
NOTE: If the unit is turned off or restarted, there is a thne
delay of 3 minutes for the compressor to start from the time the
power is restored.
DRAIN
SCREWS
(11)
Fig. 17 -- Removing Safety Drain Tray and Front
Panel (Unit Sizes 024-036)
5.
To separate the fan motor assembly from the front panel,
push the assembly horizontally about 3/4 m. as shown in
Fig. 18.
6.
Slightly lift and push the fan motor assembly downwards
to detach it from the front panel. See Fig. 18.
7.
When maintenance is complete, reverse the above procedure to re-assemble the motor assembly, front panel, and
safety drain tray.
MAINTENANCE
When servicing or repairing this unit, use only factoryapproved service replacement parts. Refer to the rating
plate on the unit for complete unit model number, serial
number and company address. Any substitution of parts or
controls not approved by the factory will be at the owner's
risk and may result m equipment damage.
INSTALLED
s_FANASSEMBLY,
To avoid equipment damage, do not attempt to reuse any
mechanical or electrical controllers that have been wet.
Replace defective controller.
",4
POTHOOK
PUSH HORIZONTALLY
ABOUT 3A in.
EVERY 3 MONTHS:
!
,._
• Check the air filter condition. Clean or replace if necessary.
EVERY 6 MONTHS -- Follow 3-month maintenance schedule. In addition:
• Clean condensate tray with suitable cleaning agent.
• Clean the grille and panel.
EVERY 12 MONTHS -- Follow 6-month maintenance
schedule. In addition:
• Be sure all electrical connections are secure.
I
MOVE
• Check condensate pump operation.
• Check the heating and cooling action to confirm proper
operation.
MOTOR MAINTENANCE (40WAH024-036)
1. Disconnect the safety drain tray connection. Remove the
screws holding the safety drain tray as shown in Fig. 17.
Fig. 18-
12
Detaching Fan Motor Assembly from
Front Panel (Unit Sizes 024-036)
MOTOR MAINTENANCE
(40WAH048)
INSTALLED FAN ASSEMBLY,
FRONT VIEW
1. Disconnect the safety drain tray connection. Remove the
screws holding the safety drain tray as shown in Fig. 19.
2.
Disconnect
the motor wiring from the control box.
3.
The fan motor assembly is mounted on the front panel.
Remove the screws on the front panel as shown in
Fig. 19.
POTHOOK
PUSH HORIZONTALLY
ABOUT sA in.
/
//
/s
/
FAN
/
ASSEMBLY
SCREWS
(4)
MOTOR
ASSEMBLY
_. MOVE
SAFETY
DRAIN
.............. q
TRAY
SAFETY
DRAIN
TRAY SCREWS
Fig. 19-
4.
..)
(12)
Fig. 20 -- Detaching
Fan Motor Assembly
Front Panel (Unit Size 048)
Removing Safety Drain Tray and Front
Panel (Unit Size 048)
To separate the fan motor assembly from the front panel,
push the assembly horizontally about 3/4 in. as shown in
Fig. 20.
5.
Slightly lift and push the fan motor assembly downwards
to detach it from the front panel. See Fig. 20.
6.
When maintenance
dure to re-assemble
safety drain tray.
TROUBLESHOOTING
Figure 21 shows the LED display panel on the indoor unit.
See Table 3 for a smmnary of display indicators. Table 4 lists
problems, possible causes, and possible solutions.
is complete, reverse the above procethe motor assembly, front panel, and
O
MANUAL
O O O O
OPERATION
TIMER
from
DER/FAN
ALARM
Fig. 21 -- LED Display Panel
13
1
Table 3 -- LED Display Indicators
ERROR CODE
[NO ERROR]
MODE_TATUS
LED DISPLAY
Operation
Light ON
Operation
Light OFF
Starting
Shutdown
Operation
Light Flashing Slow*
Standby
Timer Light ON
Timer Light OFF
Timing ON
Timing OFF
Defrost / Fan Light ON
System Defrost ON
Defrost / Fan Light OFF
System Defrost OFF
E0
Defrost / Fan Light Flashing Fastt
E1
Timer Light Flashing Fast
Heating / Cooling Mode Conflict Error
Communication Error Between Indoor and Outdoor Unit
Operation
Check Indoor Ambient Temperature Sensor (T1)
Check Evaporator Temperature Sensor (T2)
E2
E3
Light Flashing Fast
E4
Check Evaporator Outlet Temperature
Sensor (T2B)
E7
Defrost / Fan Light Flashing Slow
Ed
Alarm Light Flashing Slow
EEPROM Error (Data Storage)
Outdoor Unit Error
EE
Alarm Light Flashing Fast
Water Level Error
FE
Operation and Timer Lights Flashing Fast
Indoor Unit Turned ON But Does Not Have An Address
*Flashing Slow = Flashing once per second,
tFlashing Fast = Flashing twice per second.
Table 4 -- Troubleshooting
ERROR
EO
E1
E2, E3,
E4
DISPLAY
Defrost Light Flashing Fast (Heating/
Cooling Mode Conflict Error)
Timer Light Flashing Fast
Communication Error)
Operation Light Flashing Fast
Sensor Error)
POSSIBLE
CAUSES
POSSIBLE
SOLUTIONS
System is in cooling or fan only mode and
heating signal is received from a unit on the
system,
System is in heating mode and cooling signal is received from a unit on the system,
All units should be in cooling mode for system to
stay in cooling mode,
Signal wires are short-circuited
disconnected,
Check or reconnect signal wire,
or
All units should be in heating mode,
Signal wire order is incorrect,
Correct signal wire order.
Signal wires crossing over high voltage
power wires,
Separate and distance the signal wire from high
voltage power wires.
Signal wire close to electromagnetic
Distance signal wires from electromagnetic
source.
source,
Signal wire length exceeds 360 ft.
PC board fault.
Reduce the signal wire length.
Loose connection at port on PC board.
Sensor is short-circuited.
Tighten the connection at port on PC board.
PC board fault.
Replace PC board.
Replace PC board.
Using multi-meter, measure resistance of the sensor. If the resistance is < 100 ohms, change the
sensor.
E7
Defrost Light Flashing Slow
EEPROM Error)
Chip or PC board fault.
Replace PC board.
Ed
Alarm Light Flashing Slow (Outdoor
Unit Error)
Outdoor unit fault,
Refer to outdoor unit troubleshooting
Loose connection
on PC board.
EE
FE
Alarm Light Flashing Fast (Water
Level Error)
Operation and Timer Lights Flashing
Fast Together
Address Error)
or disconnected
at port
Tighten the connection
board,
or reconnect at port on PC
Water level float is stuck.
Inspect the float,
Trap slope is too steep.
Adjust the trap slope,
Drain pipe is too long.
Adjust the length of drain pipe,
Drain pump faulty.
Replace the drain pump,
Indoor unit without address,
]4
guide,
Run automatic addressing option at the outdoor
unit,
Use remote wireless or wired controller to readdress indoor unit,
Replacement Parts
E Quote the unit model number
and unit serial number when ordering replacement parts or
contacting the factory about the unit. This information can be
found on the serial plate attached to the unit. See Fig. 22.
I(
HIGH STATIC PRESSURE DUCT UNiT
MODEL
40WAH030---3
SERIAL
CONDENSING UNiT mSREQUIRED TO COMPLETE THE
INSTALLATION SUITABLE FOR iNDOOR
USE ONLY REFRIGERANT - R410A
/
2115V30001
HP
_.9€
,FAN MOTOR
VOLTS
PH
HZ
FLJ_
1t3
W
OUT
2O0
CarlierCorporation
_'t_
Ind anapolSr IN 46231 USA
7310 West Mort s Street
MADE
IN
CHINA
340602-202
REV.
Fig. 22 -- Unit Serial Plate (Example)
15
_
/
ULSTD995
CERTIFIED
TO
CONFORMS
CAN/CSA
STD
TO
B
C22,2
N0,236
J
© Carrier Corporation
2015
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53400014-01
Printed in U.S.A.
Form 40WAH-1SI
Pg 16
6-15
Replaces:
New
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement