Drummond MRCT-200CWN1-Z(C), MRCT-250CWN1-Z(C) rooftop package Installation & owner's manual

INSTALLATION &
OWNER´S MANUAL
ROOFTOP PACKAGE
20 and 25 TONS. - COOLING ONLY
MRCT-200CWN1-Z(C), MRCT-250CWN1-Z(C).
R-410A Refrigerant
MAN-IO-RPD-1115
CONTENTS
PAGE
WARNING
ACCESSORIES.........................................................................................1
GENERAL INFORMATION........................................................................1
UNIT DIMENSIONS...............................................................................2
Ask your dealer for installation of the air conditioner.
Incomplete installation performed by yourself may result in a
water leakage, electric shock, and fire.
LOCATIONS AND RECOMMENDATIONS..................................................4
INSTALLATION.........................................................................................4
ELECTRICAL WIRING.............................................................................6
SPECIFICATION.......................................................................................10
Ask your dealer for improvement, repair, and
maintenance.
Incomplete improvement, repair, and maintenance may result
in a water leakage, electric shock, and fire.
START-UP ..............................................................................................16
MAINTENANCE.......................................................................................16
Never replace a fuse with that of wrong rated current or
other wires when a fuse blows out.
Use of wire or copper wire may cause the unit to break down
or cause a fire.
Nomenclature
CODE
In order to avoid electric shock, fire or injury, or if you
detect any abnormality such as smell of fire, turn off the
power supply and call your dealer for instructions.
NAME
C/O
Cooling Only
E/Heater+C
Cooling units with Electric Heater
Hor.
Horizontal Units
Do not insert fingers, rods or other objects into the air
inlet or outlet.
When the fan is rotating at high speed, it will cause injury.
Never use a flammable spray such as hair spray, lacquer
or paint near the unit. It may cause a fire.
Never inspect or service the unit by yourself.
Ask a qualified service person to perform this work.
1. ACCESSORIES
Tab.1-1
Keep far away from high-frequency equipment.
Name of accessories
Qty
Manual
1
Drain outlet
1
Snap ring
1
Drain pipe
1
Wire controller
1
Shape
2. GENERAL INFORMATION
Warnings and Cautions appear at appropriate locations
throughout this manual.
Read these carefully.
WARNING: Indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate injury.
It may also be used to alarm against unsafe practices and
where property-damage-only accidents could occur.
CAUTION
Read this entire manual before beginning installation
procedures.
Bodily injury can result from high voltage electrical
components, fast moving fans. For protection from these
inherent hazards during installation and servicing, the
electrical supply must be disconnected.
If operating checks must be performed with the unit
operating, it is the technicians responsibility to recognize
these hazards and proceed safely.
Keep away from the following places:
A place where it is full of oil, gas; places where salty air
surrounding(near the coast); and a place where is caustic
gas(the sulfide in hotspring). Location in above places may
cause malfunction or shorten the life span of the manchine.
In the cace of extremely strong wind, please prevent the
air from flowing backwards into the outdoor unit.
Snow canopy is necessary in snowfall places on the
outdoor unit. Please consult the local dealer for details.
In the frequent thunderstruck place, lightning proof
actions should be taken.
To prevent refrigerant leak, contact your dealer.
When the system is installed and runs in a small room, it is
required to keep the concentration of the refrigerant, if by any
chance coming out, below the limit. Otherwise, oxygen in the
room may be affected, resulting in a serious accident.
The refrigerant in the air conditioner is safe and normally
does not leak.
If the refrigerant leaks in the room, contact with a fire of a
burner, a heater or a cooker may result in a harmful gas.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer where you purchased the
unit.
Do not use the air conditioner until a service person confirms
that the portion where the refrigerant leaks is repaired.
If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualified
person in order to avoid a hazard.
The temperature of refrigerant circuit will be high, please
keep the interconnection cable away from the copper
tube.
The appliance should not be used by children without
supervision.
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1
3. UNIT DIMENSIONS
Units: mm
20 Tons C/O Units ( Hor.)
Condenser fan
1654
2171
1247
Compressor panel
Maintain orifice for air supply motor
125
125
800
800
167 0
434 125 125
2192
695
Fig.3-1
Horizontal supply opening
Horizontal return opening
Control panel
Fig.3-2
1183
Hole for bottom installation
464
402
300
14-15×20
464
402
300
327
297
200
16*Ø4.2
569
512
512
512
203
512
804
640
2014
203
300
2192
569
512
125
20
installation & owner’s manual
2
800
1670
310
125
512
512
512
Fig.3-3
14*Ø4.2
Units: mm
25 Tons C/O Units ( Hor.)
Condenser fan
1245
Maintain orifice for air supply motor
Drain connection hole
Hole for wires
90
232 0
0
900 0
222
Fig.3-4
Horizontal supply opening
Horizontal return opening
Fig.3-5
Hole for bottom installation
130
650
900
450
130
16-15×20
130
500
900
500
130
Fig.3-6
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3
4.
LOCATIONS AND RECOMMENDATIONS
4.1 Horizontal airflow application
5.
INSTALLATION
5.1 Lifting
These units are designed and certified for outdoor installations.
These units may be installed directly on wood flooring or on
Class A, Class B, or Class C roof covering material.
Location of the unit must allow service clearance around it.
Clearance of the unit must be given careful consideration.
Check the handling facilities to ensure the safety of personnel
and the unit(s).
Caution must be taken at all times to avoid Personal injuries
and/or damage to equipment.
Rigging cables should have adequate capability to resist 3
times weight of unit. Before lift, please check and ensure that
hooks are holding tightly to unit and lifting angles are no less
than 60°.(See Fig. 5-1)
Cloth material or hard-paper should be padded in the contact
place between unit and rigging cable. Rigging cable should be
entwined a round at the hook for prevent danger by cable slip
because of weight unbalance.
During lifting, anyone forbidden lingering under the lifting unit.
The unit must be mounted level for proper drainage of water
through the holes in the base pan.
The unit must not be exposed to direct roof water runoff.
Spreader bars
Flexible duct connectors must be of a flame retardant material.
All duct work outside of the structure must be insulated and
weatherproofed in accordance with local codes.
Holes through exterior walls must be sealed in accordance with
local codes.
All fabricated outdoor ducts should be as short as possible.
ıe
4.2 Clearances
Fig.5-1
The recommended clearances for single-unit installations are
illustrated in Fig.4-1
These minimum requirements are not only an important
consideration when determining unit placement, but they are
also essential to ensure adequate serviceability, maximum
capacity, and peak operating efficiency.
Any reduction of the unit clearances indicated in these illustrations may result in condenser coil starvation or the recirculation
of warm condenser air. Actual clearances which appear to be
inadequate should be reviewed with a local engineer.
See the unit's nameplate for the absolute minimum clearance
between the unit and any combustible surface(s).
Units: mm
5.2 Rooftop-units
For roof top applications using a field fabricated frame and
ducts, use the following procedure:
The frame must be located and secured by bolting or welding
to the roof. Flashing is required.
The hole in the roof must be prepared in advance of installing
the unit.
Secure the ducts to the roof.
Place the unit on the frame or roof curb.
Secure the unit to the frame or roof curb.
≥1
00
0
0
00
≥1
Insulate any ductwork outside of the structure with at least 2
inches of insulation and then weatherproof. There must be a
weatherproof seal where the duct enters the structure.
Overhead air
Clearance≥ 3000
≥1
Complete the installation according to the instructions in the
following sections of this manual.
00
0
Typical rooftop application with frame.((See Fig. 5-2)
Fig.4-1
Fig.5-2
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4
5.3 Ground level-horizontal units
X mm
For ground level installations, the unit should be positioned on
a pad in the size of the unit or larger. The unit must be level on
the pad. The pad must not come in contact with the structure.
Be sure the outdoor portion of the supply and return air ducts
are as short as possible.
Proceed with the installation as follows:
●
Place the unit on the pad.
●
Attach the supply and return air ducts to the unit.
●
Insulate any ductwork outside of the structure with at least 2
inches of insulation and weatherproof. There must be a weatherproof seal where the duct enters the structure.
●
Complete the installation according to the instructions in the
following sections of this manual.
30tons
Others
0<X≤20
20≤X≤40
Fig.5-4
5.5 Ductwork
Attaching horizontal ductwork to unit
All conditioned air ductwork should be insulated to minimize
heating and cooling duct losses. Use a minimum of 2 inches of
insulation with a vapor barrier. The outside ductwork must be
weatherproofed between the unit and the building.
Typical ground level application
When attaching ductwork to a horizontal unit, provide a flexible
watertight connection to prevent noise transmission from the
unit to the ducts. The flexible connection must be indoors and
made out of heavy canvas.
NOTE
Do not draw the canvas taut between the solid ducts.
Unit
Fig.5-3
Weather proof
this seam
Fig.5-5
5.4 Condensate drain piping
Field duct
Drain connection hole
Drain outlet
Snap ring
Drain pipe
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5
6.
6.1 Protections and safety control
ELECTRICAL WIRING
Minutes delay for the compressor start-up
At the beginning of energizing, 3-minutes delay should be
taken to start the compressor. while after the stop of the
compressor, 7-minutes delay should be taken to re-start the
compressor.
WARNING
An all-pole disconnection switch having a contact separation
of at least 3mm in all poles should be connected in fixed
wiring.
Compressor discharge temperature protection
When discharge temperature ˚257 ℩, the compressor will
stop.
The appliance shall be installed in accordance with national
wiring regulations.
Reverse phase protection relay
An all-pole disconnection device which has at least 3mm
separation distance in all pole and residual current
device (RCD) with the rating of above 10mA shall be
incorporated in the fixed wiring according to the national
rule.
●
The reverse phase protection relay will make the unit not start,
when the power source is incorrectly connected.
●
The checking of phase order is just carried out at the first time
of electrifying. If malfunction happens then the checking will be
going on until the order of phase is right, and the E0 will be
displayed on the board. If there is no problem in the first
checking, then it will be omitted.
The appliance shall be installed in accordance with national
wiring regulations
High pressure and low pressure protection
When high pressure ı638 Psi, and lower pressure İ21Psi,
the unit will stop.
6.2 Electrical data
Tab.6-1
● 460V 3N~ 60Hz
Com pressor
Nom inal ton Model type
Evaporator fan m otor
Type of flow
STC
RNC
IPT
Qty
RNC
IPT
Qty
Condenser fan m otor
RNC
IPT
(each)
(each)
20
C/O
Hor.
142
20.7
11.25
2
7.20
4.198
1
3.50
1.90
2
25
C/O
Hor.
147
21.4
12.94
2
9.40
5.723
1
4.30
2.75
2
NOTES
STC: Starting Current (A)
RNC: Running Current (A)
IPT: Input Power (kW)
Qty: Quantity
These data are based on the following conditions. Evaporator Air Input Temperature 89.6℩ DB, 73.4℩ WB. Condenser Air
Input Temperature 125.6℩ DB.
installation & owner’s manual
6
Qty
Tab.6-2
6.3 Wiring provision
Wiring length between room thermostat and unit(one way)
Field wiring
The units are internally wired at the factory according to
generally accepted electrical technology.
Minimum wire
size(mm2)
Required field wiring
Main power wiring to the unit control wiring between the control
center and the unit, and earth wiring are required in the field.
10m
15m
20m
30m
40m
0.5
0.5
0.75
0.75
1.0
NOTE
Required components
The following components are required: main power fuses,
conduit coupling, and field supplied room thermostat.
Before connecting the device to the public low-voltage supply
systems the permission of the electricity supplier is forcefully
necessary.
Wire and fuse size selection for main power source
Wire and fuse sizes should be selected in accordance with
national and standard, taking the designed maximum current
shall be the total of the compressor maximum current,
condenser fan motor current and evaporator fan motor
current(refer to “electrical data”).
6.4 Operating conditions
For proper performance, run the unit under the following
temperature conditions:
Tab.6-3
Outdoor temperature: 50°F to 125.6°F
Wire size between room thermostat and unit
The wire size between the room thermostat and the unit should
be determined according to the following table, because the 24V
power source is applied to the control circuit.
Room temperature: 62°F to 88°F
Cooling
operation
Caution
Room relative humidity less than 80%. If the unit
operates in excess of this figurethe surface of
the unit may attract condensation.
6.5 Main power supply
Tab.6-4
Model type
Unit main power
Main power switch
Fuse
Wires for Power supplies
20Tons
C/O
460V 3N~ 60Hz
75A
63A
3x16mm2+2x10mm2
25Tons
C/O
460V 3N~ 60Hz
90A
80A
3x25mm2+2x10mm2
Type of wires
3xUL1015 5AWG
2xUL1015 7AWG
3xUL1015 3AWG
2xUL1015 7AWG
NOTE
The power supply designation is H07RN-F.
installation & owner’s manual
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Suggestion: Choose a Intensity Thermostat, programable
or non-programable.
Wiring please refer to the Owner’s Manual of the thermostat.
6.6 Control wiring
Power supply
L2 L3
L1
ǂǂDial code settings
Set the dial code SW3 of PCB in unit’s wire control box, After
settings, please shut off the power supply and then repower,
otherwise, the new settings function couldn’t work.
N
Fig.6-1
Next wire joint also available
L1
L2 L3
● When SW3 has been set in “ON”, please select KJR-12B wire
controller;
● When SW3 has been set in “1”, please select KJR-23B wire
controller, KJR-23B is optional.
● For C/O Units
N
KJR -1 2B
To connect with wire controller
● For E/Heater+C Units
● For C/O Units
A
B
RED
C
D
BL ACK
ON
SW3
CN7
1
Y ELLOW
MAIN CONTROL BOARD
CN9
CN36
WH ITE
GREEN
WHITE
RED
YELLOW
Fig.6-2
5 -termi na l
Gro up
BROW N
E
XT2
R G Y (C)
R
G
Y
(C)
R
G
Y
TO THE WIRE CONTROLLER
W (C)
● For E/Heater+C Units
5 -termi na l
KJR -1 2B Gro up
ON
BROW N
RED
C
D
BL ACK
Y ELLOW
SW3
1
CN7
CN9 MAIN CONTROL BOARD
BLUE
WHITE
RED
YELLOW
A
B
CN36
GREEN
WH ITE
E
R G Y W (C)
XT2
TO THE WIRE CONTROLLER
installation & owner’s manual
8
6.7 Error code
Type
Content
Code
Remarks
Normal
Standby
Normal
Constraint cool
on
Normal
Run
10.
Error
Compressor phase sequence
error or phase default
E0
Error
Outdoor coil sensor in sys. A error
E1
Error
Outdoor coil sensor in sys. B error
E2
Error
Overcurrent protection of system A are active
3 times within one hour
E3
Unit shall be power off to
recovery
Error
Overcurrent protection of system B are active
3 times within one hour
E4
Unit shall be power off to
recovery
Error
Indoor coil sensor in sys. A error
E5
Error
Indoor coil sensor in sys. B error
E6
Error
Highǃ low pressure protection or discharge
temperature protection of system A reached 3 times
E7
Unit shall be power off to
recovery
Error
Highǃ low pressure protection or discharge
temperature protection of system B reached 3 times
E8
Unit shall be power off to
recovery
Error
Indoor sensor error
E9
Error
Outdoor ambient sensor error
EA
Error
Wire controller output error
Eb
Error
EEPROM error
EE
Protection
Overcurrent protection in sys.A
P0
Protection
Overcurrent protection in sys.B
P1
Protection
Overcurrent protection for indoor fan
P2
Protection
Comprehensive protection for outdoor fan
P3
Protection
Protection for Hi./Lo. pressure or exhaust temp.
in sys.A
P4
Comprehensive protection
in sys.A
Protection
Protection for Hi./Lo. pressure or exhaust temp. in
sys.B
P5
Comprehensive protection
in sys.B
Protection
Hi-pressure protection initiated in T2 evaporator
stops the outdoor unit fan
P6
Protection
Hi-pressure protection initiated in T2 evaporator
stops the outdoor unit fan and compressor
P7
Protection
Protection for condenser Hi-temp. in sys.A
P8
Protection
Protection for condenser Hi-temp. in sys.B
P9
Protection
Anti-freezing protection for evaporator in sys. A
Pc
Protection
Anti-freezing protection for evaporator in sys. B
Pd
Protection
Defrosting
dF
Protection
Protection for outdoor temp
PA
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7. SPECIFICATION
7.1 Physical Data
Tab.7-1
460V 3N~ 60Hz
Nominal ton
20Tons
25Tons
Model type
C/O
C/O
Type of flow
Hor.
Hor.
Cooling capacity(net) (Btu/h)(ĉ)
240000
300000
Heating capacity (Btu/h)
---
---
EER
10.9
10.7
Length(mm)
1670
2320
Width(mm)
2192
2220
Heigth(mm)
1247
1245
670
895
Refrigerant type
R410A
R410A
Flow control
Piston
Capillary
2/Scroll
2/Scroll
Capacity
Performance
Dimensions
Net weight(kg)
Compressor Quantity/Type
Rows
Outdoor coil Fins per inch
Tube diameter(in.)
Rows
Indoor coil Fins per inch
Tube diameter(in.)
Quantity used/diameter(mm)
Type
Drive type
Outdoor fan Quantity speeds
Quantity motors/power(kW)
Motor RPM
Nominal total CFM
3
3+2
17
17
9/32
9/32
4
4
19
16
9/32
5/16
2/750
2/800
Propeller
Propeller
Direct
Direct
1
1
2/2.75
2/1.9
1150
1100
19600
24375
Quantity used/model
1/SYD315R2-L
1/SYD355R2-L
Type
FC Centrifugal
FC Centrifugal
Drive type
Indoor fan
Quantity speeds
Quantity motors/power(kW)
Motor RPM
Nominal total CFM (Ċ)
Belt
Belt
Variable sheave
Variable sheave
1/4.2(120Pa)
1/5.7(250Pa)
1730
8300(120Pa)
1730
11500(250Pa)
NOTES
NOTE
(ĉ )
(Ċ )
Cooling capacities are rated at 95℩ambient DB, 80℩entering DB, 67℩ entering WB.
Units are suitable for operation to ±20% of nominal CFM.
installation & owner’s manual
10
7.2 Parameter For Air Volume
Parameter table for indoor unit air volume
BLOWER DRIVE OPTIONS
MOTOR
UNIT MAIN POWER
460V 3N~ 60Hz
MODEL TYPE
20 Tons
25Tons
SPEED RANGE (RPM)
PULLEY PITCH DIA.
(INCH)
PULLEY PITCH DIA.
(INCH)
MINIMUM
1730
4.53~5.25
1081
1284
7.09
4.53~5.25
925
1088
7.87
HP
RPM
7.3
BLOWER
MAXIMUM
Example for selection process:
The following data are the rated design points for model 20 Ton roofrop:
Air flow(CFM)=9187cfm
Extermal static pressure(ESP)=0.3in.w.g
Fan speed(RPM)=1098
Power input(W)=4847
The no. of turns (N) =1
To increase the ESP to 0.4in.w.g, but maintain the airflow rate at 9187cfm, please follow the steps below:
Step 1: Selection of new desired point.
From the table data, select the point that can meet both of the requirements (ESP = 0.4in.w.g and airflow rate(near or equal to) =9187cfm).
Step 2: Read Fan speed(RPM), Power input(W):
Air flow(CFM)=9260cfm
Fan speed(RPM)=1125
Power input(W)=5100
Step 3: Read number of turns for variable pitch pulley.
Similarly, use this RPM valve to read the no. of turns (N) by referring to the table of ‘Motor Variable Pitch Pulley Data’. The variable pitch
pulley for motor shall be adjusted to this ‘N’ in order to achieve the desired point (ESP = 0.4in.w.g and airflow rate =9260cfm). For instance,
from the table, no. of turns (N) =0.5 in order to get 9260cfm. First, adjust the motor pulley to 0 turns. Then, makes 0.5 turns on the pulley.
Cross check the dimension ‘X’, which stands for regulation space of motor pulley. In this case, X = 1.5mm.
installation & owner’s manual
11
20 Tons (460V 3N~ 60Hz)
Exterm al static
N
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
2.75
3
pressure(ESP)
X
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
Fan speed(RPM)
1148
1135
1122
1109
1096
1082
1069
1056
1042
1028
1014
1000
983
Pow er input(W)
6099
5892
5685
5477
5270
5063
4856
4654
4451
4219
3987
3810
3576
Air flow (CFM)
10424
10282
10141
9999
9858
9716
9575
9449
9323
9200
9077
8884
8655
Fan speed(RPM)
1149
1136
1123
1110
1097
1084
1071
1057
1043
1029
1016
1002
984
Pow er input(W)
5997
5787
5577
5366
5156
4946
4736
4534
4331
4102
3873
3686
3488
Air flow (CFM)
10256
10113
9969
9826
9682
9539
9395
9266
9136
8996
8855
8665
8489
Fan speed(RPM)
1150
1136
1123
1110
1097
1084
1071
1057
1043
1030
1016
1002
985
Pow er input(W)
5783
5586
5388
5191
4994
4796
4599
4397
4194
3968
3741
3544
3382
Air flow (CFM)
9995
9851
9706
9562
9417
9273
9128
8995
8861
8703
8546
8358
8235
Fan speed(RPM)
1150
1137
1124
1111
1098
1085
1072
1058
1045
1031
1017
1003
987
Pow er input(W)
5641
5442
5244
5046
4847
4649
4451
4235
4020
3809
3599
3550
3229
Air flow (CFM)
9779
9631
9483
9335
9187
9039
8891
8731
8571
8422
8274
8331
7928
Fan speed(RPM)
1151
1138
1125
1112
1099
1086
1073
1060
1046
1032
1018
1005
989
Pow er input(W)
5498
5299
5100
4900
4701
4502
4303
4074
3845
3651
3456
3555
3076
Air flow (CFM)
9563
9412
9260
9109
8957
8806
8654
8467
8281
8141
8002
8305
7621
Fan speed(RPM)
1152
1139
1126
1113
1100
1086
1073
1060
1046
1032
1017
1006
992
Pow er input(W)
5338
5139
4940
4741
4542
4343
4144
3921
3699
3494
3289
3051
2832
7279
Air flow (CFM)
9349
9188
9028
8867
8707
8546
8386
8217
8049
7899
7749
7488
Fan speed(RPM)
1153
1140
1127
1113
1100
1087
1074
1060
1047
1033
1019
1004
990
Pow er input(W)
5177
5006
4801
4599
4261
4052
3984
3763
3541
3352
3162
2910
2724
Air flow (CFM)
9135
8980
8897
8800
8666
8540
8118
7947
7775
7621
7467
7151
6969
Fan speed(RPM)
1154
1137
1125
1112
1097
1084
1075
1061
1047
1033
1019
1003
990
Pow er input(W)
4976
4798
4634
4395
4073
3857
3767
3545
3323
3136
2950
2699
2517
Air flow (CFM)
8822
8644
8574
8429
8304
8157
7725
7540
7355
7193
7031
6737
6539
Fan speed(RPM)
1155
1137
1125
1113
1097
1084
1076
1061
1047
1033
1020
1003
991
Pow er input(W)
4775
4589
4467
4190
3884
3662
3549
3327
3104
2921
2737
2487
2309
Air flow (CFM)
8509
8309
8251
8058
7941
7774
7333
7133
6934
6765
6595
6324
6108
Fan speed(RPM)
1157
1141
1128
1115
1100
1087
1077
1063
1049
1035
1021
1006
993
Pow er input(W)
4518
4343
4168
3923
3632
3395
3227
3003
2778
2590
2403
2166
1975
5107
Air flow (CFM)
8106
7901
7783
7620
7478
7293
6477
6260
6043
5841
5638
5356
Fan speed(RPM)
1159
1145
1130
1117
1102
1089
1079
1065
1050
/
/
/
/
Pow er input(W)
4261
4097
3869
3655
3379
3128
2905
2679
2452
/
/
/
/
Air flow (CFM)
7702
7494
7316
7181
7014
6812
5622
5387
5152
/
/
/
/
Fan speed(RPM)
1161
1146
1133
1119
1105
1092
/
/
/
/
/
/
/
Pow er input(W)
3890
3717
3487
3239
2952
2689
/
/
/
/
/
/
/
Air flow (CFM)
6825
6588
6374
6198
6003
5733
/
/
/
/
/
/
/
Fan speed(RPM)
1163
1148
1136
1122
/
/
/
/
/
/
/
/
/
Pow er input(W)
3518
3336
3105
2822
/
/
/
/
/
/
/
/
/
Air flow (CFM)
5948
5682
5431
5214
/
/
/
/
/
/
/
/
/
Fan speed(RPM)
1163
1149
1135
/
/
/
/
/
/
/
/
/
/
Pow er input(W)
3518
3276
2960
/
/
/
/
/
/
/
/
/
/
Air flow (CFM)
5948
5553
5130
/
/
/
/
/
/
/
/
/
/
Fan speed(RPM)
1276
1262
/
/
/
/
/
/
/
/
/
/
/
Pow er input(W)
4546
4243
/
/
/
/
/
/
/
/
/
/
/
Air flow (CFM)
7459
6935
/
/
/
/
/
/
/
/
/
/
/
Fan speed(RPM)
1280
1267
/
/
/
/
/
/
/
/
/
/
/
Pow er input(W)
3982
3457
/
/
/
/
/
/
/
/
/
/
/
Air flow (CFM)
6465
5433
/
/
/
/
/
/
/
/
/
/
/
Fan speed(RPM)
1284
/
/
/
/
/
/
/
/
/
/
/
/
Pow er input(W)
3417
/
/
/
/
/
/
/
/
/
/
/
/
Air flow (CFM)
5471
/
/
/
/
/
/
/
/
/
/
/
/
Legend: X: Regulation Space of Motor Pulley (mm)
installation & owner’s manual
12
N: Number of Turns;
ESP: External Static Pressure (in.w .g)
25 Tons (460V 3N~ 60Hz)
Exterm al static
pressure(ESP)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
N
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
2.75
3
X
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
Fan speed(RPM)
/
/
/
/
/
/
/
/
/
/
/
/
1172
Pow er input(W)
/
/
/
/
/
/
/
/
/
/
/
/
8368
Air flow (CFM)
/
/
/
/
/
/
/
/
/
/
/
/
13634
Fan speed(RPM)
/
/
/
/
/
/
/
/
/
/
/
/
1174
Pow er input(W)
/
/
/
/
/
/
/
/
/
/
/
/
8191
Air flow (CFM)
/
/
/
/
/
/
/
/
/
/
/
/
13419
Fan speed(RPM)
/
/
/
/
/
/
/
/
/
/
/
1188
1174
Pow er input(W)
/
/
/
/
/
/
/
/
/
/
/
8028
7900
Air flow (CFM)
/
/
/
/
/
/
/
/
/
/
/
13235
13095
1175
Fan speed(RPM)
/
/
/
/
/
/
/
/
/
/
/
1189
Pow er input(W)
/
/
/
/
/
/
/
/
/
/
/
7802
7674
Air flow (CFM)
/
/
/
/
/
/
/
/
/
/
/
12938
12800
Fan speed(RPM)
/
/
/
/
/
/
/
/
/
/
1185
1180
1176
Pow er input(W)
/
/
/
/
/
/
/
/
/
/
7453
7450
7447
Air flow (CFM)
/
/
/
/
/
/
/
/
/
/
12592
12549
12505
Fan speed(RPM)
/
/
/
/
/
/
/
/
/
1215
1185
1181
1176
Pow er input(W)
/
/
/
/
/
/
/
/
/
7350
7164
7155
7146
Air flow (CFM)
/
/
/
/
/
/
/
/
/
12552
12275
12208
12141
Fan speed(RPM)
/
/
/
/
/
/
/
/
1225
1216
1186
1181
1177
Pow er input(W)
/
/
/
/
/
/
/
/
8405
7032
6874
6860
6845
Air flow (CFM)
/
/
/
/
/
/
/
/
12706
12210
11958
11867
11777
Fan speed(RPM)
/
/
/
/
/
/
/
1230
1220
1216
1187
1183
1178
Pow er input(W)
/
/
/
/
/
/
/
6950
6846
6742
6607
6589
6571
Air flow (CFM)
/
/
/
/
/
/
/
12704
12377
11835
11597
11500
11402
Fan speed(RPM)
/
/
/
/
/
/
1230
1225
1220
1217
1188
1184
1180
Pow er input(W)
/
/
/
/
/
/
8379
8203
7854
6452
6339
6318
6297
Air flow (CFM)
/
/
/
/
/
/
12654
12423
12048
11460
11237
11132
11028
Fan speed(RPM)
/
/
/
/
/
1215
1210
1200
1200
1189
1185
1183
1181
Pow er input(W)
/
/
/
/
/
8155
8124
7923
7573
6195
6090
6062
6033
Air flow (CFM)
/
/
/
/
/
12362
12352
12092
11671
11140
10926
10773
10620
Fan speed(RPM)
/
/
/
1220
1215
1214
1209
1200
1200
1189
1185
1182
1182
Pow er input(W)
/
/
/
8696
8497
7868
7868
7643
7292
5938
5841
5805
5769
Air flow (CFM)
/
/
/
12321
12063
12045
12050
11762
11294
10821
10615
10413
10212
Fan speed(RPM)
/
/
1220
1218
1213
1210
1207
1199
1199
1188
1182
1181
/
Pow er input(W)
/
/
8383
8404
8195
6473
6463
6317
5952
5779
5693
5768
/
Air flow (CFM)
/
/
11957
11970
11681
11553
11509
11280
10792
10452
10300
10200
/
Fan speed(RPM)
/
1220
1218
1215
1210
1208
1205
1197
1197
1188
1181
/
/
Pow er input(W)
/
8566
8077
8111
7892
6495
6475
6409
6029
5843
5768
/
/
Air flow (CFM)
/
12174
11596
11619
11299
11308
11215
11045
10536
10098
9999
/
/
Fan speed(RPM)
/
1218
1215
1212
1208
1206
1203
1195
1191
1186
/
/
/
Pow er input(W)
/
8576
8216
8117
7892
6186
6316
5915
5870
5939
/
/
/
Air flow (CFM)
/
12402
11891
11681
11299
10418
10847
9838
10168
9105
/
/
/
/
Fan speed(RPM)
1220
1215
1213
1210
1206
1201
1200
1188
1178
/
/
/
Pow er input(W)
8629
7946
7715
7484
7253
6250
6380
5979
5934
/
/
/
/
Air flow (CFM)
11462
11818
11374
10931
10487
10034
9605
9356
9025
/
/
/
/
/
Fan speed(RPM)
1215
1211
1210
1209
1205
1201
1200
1189
/
/
/
/
Pow er input(W)
8342
8575
8809
7967
7126
6123
6253
5852
/
/
/
/
/
Air flow (CFM)
11076
11514
11952
11069
10187
9733
9304
9055
/
/
/
/
/
/
Fan speed(RPM)
1206
1204
1201
1201
1200
1196
1189
/
/
/
/
/
Pow er input(W)
8055
8011
7967
7791
6999
5996
6126
/
/
/
/
/
/
Air flow (CFM)
10689
10656
10622
10489
9886
9433
9004
/
/
/
/
/
/
/
Fan speed(RPM)
1200
1200
1196
1196
1189
1186
/
/
/
/
/
/
Pow er input(W)
5571
5615
5659
5835
6627
5624
/
/
/
/
/
/
/
Air flow (CFM)
8441
8474
8508
8642
9244
8791
/
/
/
/
/
/
/
/
Fan speed(RPM)
1186
1184
1184
1184
1180
1180
/
/
/
/
/
/
Pow er input(W)
7310
7266
7222
7046
6254
5251
/
/
/
/
/
/
/
Air flow (CFM)
9406
9373
9339
9205
8603
8150
/
/
/
/
/
/
/
Legend: X: Regulation Space of Motor Pulley (mm);
N: Number of Turns;
ESP: External Static Pressure (in.w.g)
installation & owner’s manual
13
7.3 Capacity Data (460V 3N~ 60Hz)
Cooling capacity — 20 Tons (460V 3N~ 60Hz)
Air Flow ˄ CFM ˅
Ent ˄ DB ˅
85
90
75
80
85
90
75
80
85
90
TC
216.3
218.9
228.7
241.5
222.2
226.9
236.6
249.5
224.6
230.3
244.8
256.0
SC
174.0
206.2
221.9
234.4
183.6
219.0
229.6
242.1
193.4
223.5
237.5
248.4
PI
21929.5
21998.6
22553.9
22569.6
22249.6
22289.7
22570.0
22657.7
22076.4
22553.9
22643.0
22731.3
TC
242.3
245.3
248.0
251.4
249.5
251.3
252.7
254.4
252.6
254.5
256.0
257.9
SC
138.6
169.1
198.2
228.8
144.8
175.6
207.8
238.4
147.2
180.5
214.3
248.1
PI
23125.3
23264.6
23447.9
23653.3
23694.4
23814.4
23886.5
23975.4
23897.7
24169.7
24258.6
24330.8
TC
256.0
260.9
264.1
267.4
258.9
262.5
267.4
270.4
262.2
265.7
268.8
272.1
67
61
67
73
Ambient Temperature
61
105
67
73
61
115
67
73
61
118.4
67
73
SC
95.7
128.2
154.8
180.5
97.5
131.1
158.3
183.4
99.3
132.3
161.0
190.1
PI
24423.2
24508.5
24680.6
24736.1
24516.2
24591.7
24808.3
24863.8
24439.8
24747.2
24849.2
24959.2
TC
202.8
207.7
217.5
231.9
205.4
214.2
227.1
239.9
212.6
217.5
233.6
246.4
SC
165.9
198.2
211.0
225.1
175.6
205.8
218.1
230.4
185.4
211.0
226.6
239.1
PI
21297.9
21437.3
21992.6
22008.3
21608.4
21728.4
22008.7
22096.4
21720.5
21992.6
22081.7
22170.0
TC
227.1
230.3
233.6
238.3
236.6
240.0
241.5
243.1
244.8
246.6
248.2
249.5
SC
132.3
162.8
193.4
223.9
137.8
170.8
203.1
236.7
193.1
231.2
233.2
246.5
PI
22493.7
22703.3
22886.5
23092.0
23053.1
23553.0
23625.2
23714.1
23841.8
23908.4
23997.2
24069.4
TC
249.6
252.7
255.8
259.2
251.4
254.2
258.1
262.5
253.7
257.0
260.2
261.8
SC
91.5
123.3
151.9
178.9
93.4
127.5
156.0
185.4
95.2
129.7
159.7
190.1
PI
23791.6
23947.1
24119.2
24174.8
23874.9
24030.4
24247.0
24302.5
24083.9
24185.9
24287.9
24397.9
TC
188.7
193.6
203.3
219.6
195.2
200.1
216.3
226.1
198.5
206.6
224.5
239.1
SC
158.3
187.9
197.3
213.1
169.3
194.2
209.9
219.4
179.1
200.5
217.8
232.0
PI
23997.6
24137.0
24692.2
24708.0
24308.1
24428.1
24708.4
24796.1
24420.1
24692.2
24781.3
24869.6
TC
216.3
219.6
224.5
226.1
218.0
222.8
229.3
232.6
229.3
232.6
235.8
239.1
SC
125.3
156.3
187.0
219.2
144.3
164.4
198.2
209.4
135.8
172.4
207.8
239.2
PI
24441.6
24651.2
24834.4
25039.9
25001.0
25200.9
25273.1
25361.9
25489.6
25556.3
25645.1
25717.3
TC
245.6
247.2
248.8
250.5
248.8
250.5
252.1
255.3
252.1
253.7
255.3
257.0
SC
86.9
118.1
147.9
175.8
88.9
122.3
152.9
183.8
90.5
126.2
157.0
188.5
PI
26639.5
26795.0
26967.1
27022.6
26722.8
26878.2
27094.8
27150.3
26931.7
27033.7
27135.7
27245.7
TC
180.3
186.8
203.0
219.3
185.1
194.9
211.1
227.4
190.0
201.4
219.3
235.5
SC
159.4
181.5
197.3
213.0
168.8
189.4
205.1
220.9
177.1
195.7
213.0
228.8
PI
26728.7
26868.1
27423.4
27439.1
27039.2
27159.2
27439.5
27527.2
27151.3
27423.4
27512.5
27600.8
TC
194.1
197.4
199.0
202.3
195.8
200.6
203.9
207.1
207.1
210.4
215.3
218.5
SC
121.1
140.9
171.5
202.4
127.6
149.5
182.9
207.2
151.1
173.9
208.0
209.6
PI
27172.7
27382.3
27565.5
27771.0
27732.1
27900.0
28004.2
28093.1
28220.8
28287.4
29487.4
29559.6
TC
220.1
223.4
226.6
228.3
226.6
229.9
231.5
233.1
231.5
233.1
234.8
236.4
SC
73.2
104.2
134.9
165.0
75.0
109.7
140.6
171.5
78.9
113.0
147.1
181.2
PI
29793.8
29949.3
30121.4
30176.9
29877.1
30032.6
30249.1
30304.6
30086.0
30188.0
30290.0
30400.0
TC
176.7
183.2
199.4
215.7
181.5
191.3
207.5
223.8
186.4
197.8
215.7
231.9
SC
155.8
177.9
193.7
209.4
165.2
185.8
201.5
217.3
173.5
192.1
209.4
225.2
PI
27099.7
27239.1
27794.4
27810.1
27410.2
27530.2
27810.5
27898.2
27522.3
27794.4
27883.5
27971.8
TC
193.2
196.3
197.7
200.8
194.9
199.4
202.6
205.6
206.2
209.3
214.0
217.0
SC
120.2
139.8
170.2
200.9
126.7
148.4
181.6
205.7
150.2
172.8
196.0
208.1
PI
27543.7
27753.3
27936.5
28142.0
28103.1
28196.0
28375.2
28464.1
28591.8
28658.4
29858.4
29930.6
TC
216.5
219.8
223.0
224.7
223.0
226.3
227.9
229.5
227.9
229.5
231.2
232.8
SC
69.6
100.6
131.3
161.4
71.4
106.1
137.0
167.9
75.3
109.4
143.5
177.6
PI
30160.2
30315.6
30487.8
30543.3
30243.4
30398.9
30615.5
30671.0
30452.4
30554.4
30656.4
30400.0
Notes:
1.All capacities are net and have considered indoor fan heat.
2.TC=Total Capacity. (Unit:1000Btu/h)
3.SC=SensibleCapacity. (Unit:1000Btu/h)
4.PI=Pow er input (unit:W)
5.Different air volume in the above table,need to adjust in the field
installation & owner’s manual
14
10400
80
73
95
8300
75
61
85
5400
˄̧˅
Cooling capacity — 25 Tons (460V 3N~ 60Hz)
Air Flow ˄CFM˅
Ent˄DB˅
61
85
67
73
61
95
67
73
Ambient Temperature
61
105
67
73
61
115
67
73
61
118
67
73
9500
8500
11500
˄̧˅
75
80
85
90
75
80
85
90
75
80
85
90
TC
266.8
272.4
278.2
284.0
274.0
279.8
285.7
291.7
280.8
286.7
292.7
298.9
SC
231.0
235.9
241.0
246.1
247.0
252.3
257.6
263.1
262.0
267.6
273.2
279.0
PI
30182.3
30382.3
30454.6
30582.4
30472.3
30672.3
30744.6
30872.4
30762.3
30962.3
31034.6
31162.4
TC
298.0
304.3
310.7
317.2
301.0
307.3
313.8
320.4
303.8
310.1
316.6
323.3
SC
172.0
219.1
265.0
301.3
178.0
229.9
284.2
310.6
186.5
262.4
280.5
315.3
PI
30682.3
30882.3
30954.6
31082.4
30972.3
31172.3
31244.6
31372.4
31262.3
31462.3
31534.6
31662.4
TC
309.3
315.7
322.4
329.1
310.3
316.8
323.4
330.2
311.0
317.5
324.2
331.0
SC
108.3
161.4
198.0
237.6
109.8
163.6
205.0
256.1
111.5
169.4
220.2
260.3
PI
31258.6
31463.0
31536.6
31667.0
31568.6
31773.0
31846.6
31977.0
31878.6
32083.0
32156.6
32287.0
TC
246.5
251.7
257.1
262.5
254.3
259.6
265.1
270.8
261.8
267.3
272.9
278.7
SC
220.8
225.5
230.3
235.2
237.0
242.1
247.2
252.5
252.5
258.3
263.3
268.9
PI
29950.1
30132.3
30199.4
30316.5
30200.1
30382.3
30449.4
30566.5
30450.1
30632.3
30699.4
30816.5
TC
273.8
279.5
285.4
291.4
278.3
289.6
295.7
301.9
294.0
300.0
306.5
312.9
SC
166.0
213.6
258.2
297.8
174.8
226.1
274.2
300.1
182.5
257.3
270.2
310.3
PI
32159.7
32359.7
32432.0
32559.8
32449.7
32649.7
32722.0
32849.8
32749.7
33000.0
33022.0
33149.8
TC
306.5
312.9
319.5
326.2
307.3
313.7
320.3
327.0
309.0
315.5
322.1
328.9
SC
104.8
152.6
193.0
233.8
107.0
155.9
200.0
251.6
107.8
158.1
208.7
251.1
PI
34048.6
34257.7
34332.7
34466.1
34358.6
34567.7
34642.7
34776.1
34668.6
34877.7
34952.7
35086.1
TC
225.8
230.6
235.5
240.5
234.0
239.0
244.1
249.3
239.0
244.1
249.3
254.6
SC
210.5
215.0
219.6
224.4
227.0
231.9
236.8
241.9
222.5
227.3
232.1
237.1
PI
31937.5
32119.7
32186.8
32303.9
32187.5
32369.7
32436.8
32553.9
32437.5
32619.7
32686.8
32803.9
TC
265.3
270.9
276.6
282.4
271.8
277.5
283.4
289.3
276.0
281.8
287.8
293.8
SC
158.0
205.1
254.0
278.3
167.3
219.4
269.2
284.1
174.5
234.9
265.0
280.8
PI
34647.1
34847.1
34919.4
35047.2
34937.1
35137.1
35209.4
35337.2
35237.1
35437.1
35509.4
35637.2
TC
299.0
305.3
311.7
318.2
301.0
307.3
313.8
320.4
302.5
308.9
315.3
322.0
SC
99.8
147.1
186.7
223.1
102.0
153.1
192.5
248.6
103.3
152.9
199.0
246.3
PI
37478.2
37695.2
37772.3
37910.2
37788.2
38005.2
38082.3
38220.2
38098.2
38315.2
38392.3
38530.2
TC
198.3
202.7
207.2
211.8
205.5
210.1
214.7
219.4
213.3
218.0
222.8
227.7
SC
193.5
197.8
202.2
206.7
197.5
201.9
206.4
211.0
207.5
212.1
216.8
221.6
PI
34074.9
34257.1
34324.2
34441.3
34324.9
34507.1
34574.2
34691.3
34574.9
34757.1
34824.2
34941.3
TC
235.8
240.9
246.2
251.6
240.5
245.8
251.1
256.6
246.5
251.7
257.4
263.0
SC
140.8
190.1
237.5
242.7
150.3
202.6
245.5
250.8
159.0
217.4
250.5
258.6
PI
36784.5
36984.5
37056.8
37184.6
37074.5
37274.5
37346.8
37474.6
37374.5
38000.8
38100.8
38174.6
TC
280.5
286.6
292.7
299.0
282.8
288.9
295.1
301.4
284.5
290.6
296.9
303.3
SC
87.5
135.4
174.7
204.1
89.3
142.4
177.7
235.1
91.3
141.6
185.0
230.6
PI
41654.8
41878.8
41955.4
42096.2
41964.8
42188.8
42265.4
42406.2
42274.8
42498.8
42575.4
42716.2
TC
195.6
200.0
204.5
209.1
202.8
207.4
212.0
216.7
210.6
215.3
220.1
225.0
SC
190.8
195.1
199.5
204.0
194.8
199.2
203.7
208.3
204.8
209.4
214.1
218.9
PI
34671.1
34853.3
34920.4
35037.5
34921.1
35103.3
35170.4
35287.5
35171.1
35353.3
35420.4
35537.5
TC
233.1
238.2
243.5
248.9
237.8
243.1
248.4
253.9
243.8
249.0
254.7
260.3
SC
138.1
187.4
234.8
240.0
147.6
199.9
242.8
248.1
156.3
214.7
247.8
255.9
PI
37380.7
37580.7
37653.0
37780.8
37670.7
37870.7
37943.0
38070.8
37970.7
38171.0
38243.0
38370.8
TC
277.8
283.9
290.0
296.3
280.1
286.2
292.4
298.7
281.8
287.9
294.2
300.6
SC
84.8
132.7
172.0
201.4
86.6
139.7
175.0
232.4
88.6
138.9
182.3
227.9
PI
42398.3
42617.7
42696.6
42836.3
42708.3
42927.7
43006.6
43146.3
43018.3
43237.7
43316.6
43456.3
Notes:
1.All capacities are net and have considered indoor fan heat.
2.TC=Total Capacity. (Unit:1000Btu/h)
3.SC=SensibleCapacity. (Unit:1000Btu/h)
4.different air volume in the above table,need to adjust in the field
installation & owner’s manual
15
8.
START-UP
WARNING
At least 1m flame resistant layer must be laid at the end
of the air duct internal surface.
Before starting unit
●
Is the unit properly located and level with the proper
clearance?
●
Is the duct work correctly sized, run, taped, insulated, and
weatherproofed with proper unit arrangement? See Ductwork
Installation section.
●
Is the wiring properly sized and run according to the unit wiring
diagram?
●
Are all the wiring connections, including those in the unit,
tight?
●
Has the unit been properly grounded and fused with the
recommended fuse size? See Wiring Data.
●
Have the air conditioning systems been checked at the
service ports for charge and leak tested if necessary?
●
Does the condenser fan and indoor blower fan free without
rubbing, and are they tight on the shafts?
●
Are all covers and access panels in place to prevent air loss
and safety hazards?
Regulating belt of tension
Refer to Fig.9-3, loose 2 bolts, and move the electric motor to
adjust belt tension.
The two bolts are used for
precision adjustment .
2 bolts
Fig.9-3
●
●
Belt tension is measured by belt tension indicator
Calculate the deflection, deflection=A/64.
Measure the belt deflection force, the force shuold be
between the values shown in Tab.9-2
A(ce
nter
Starting the unit in the cooling mode
Belt tension indicator applied
to mid_center distance
dista
nce)
Voltage
With the unit operating, check the line voltage of the unit. The
voltage should be within the range shown on the unit
nameplate.
If low voltage is encountered, check the size and length of
the supply line from the main disconnect to the unit. The line
may be undersized for the length of the run.
Cooling shut down
Place the system selector in the OFF position or reset
thermostat at a setting above room temperature.
Do not de-energize the main power disconnect except when
unit is to be serviced.
9.
Fig.9-4
Tab.9-1
Nominal ton
A (mm)
20
25
580
480
MAINTENANCE
Regular maintenance
Some regular maintenance have been carry on by user,
includes: change the one-time dust filter, clean casing, wash
condenser and replace a new belt, as well as do some test for
the equipment.
Tab.9-2
For required to deflection
Belt section
Control box
Control box
access panel
SPA
Small pulley
diameter (mm)
Newton(N)
Kilogram-force(kgf)
80 to132
25 to 35
2.5 to 3.6
NOTE
The belt which is too tight or too loose may generate noise
and be harmful to the unit.
If you use air filter accessories provided by the manufacturer, please dismantle the air filter as the following
steps.
Inner moter
installation & owner’s manual
16
Fig.9-1
●
Twist of screws and get out the plate.
●
Pull out the filter along the supporting slot.
CAUTION
Air filter assembly
plate
Air filter
Fig.9-5
Clean the air filter (Vacuum cleaner or fresh water may be
used to clean the air filter. If the dust accumulated too much,
please use soft brush and mild detergent to clean and dry out
in cool place) .
Do not operate the unit without the evaporator fan access
panel in place. Reinstall the access panel after performing
any maintenance. Operating the unit without the access panel
may result in severe personal injury or death.
This unit is not intended for use by persons (including
children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of
the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play
with the unit.
Disconnect the
maintenance.
power
supply
before
cleaning
and
The unit shall be installed in accordance with national wiring
regulations.
DISPOSAL: Do not dispose this product as
unsorted municipal waste. Collection of such waste
separately for special treatment is necessary.
Fig.9-6
●
The air-in side should face up when using vacuum cleaner.
●
The air-in side should face down when using water.
CAUTION
Do not dry out the air filter under direct sunshine or heat.
●
Do not dispose of electrical appliances as unsorted
municipal waste, use separate collection facilities
Contact you local government for information regarding
the collection systems available.
If electrical appliances are disposed of in landfills or
dumps, hazardous substances can leak into the
groundwater and get into the food chain, damaging your
health and well-being.
Re-install the air filter
Condenser coil
Unfiltered air circulates through the unit's condenser coil
can cause the coil's surface to become clogged with
dust, etc. Clean the coil, vertically (i.e., with the fins), and
stroke the coil surface with a soft brush. Be sure to keep
all vegetation away from the condenser coil area.
Maintenance performed by serviceman.
To keep your unit operating safely and efficiently, the
manufacturer recommends that a qualified serviceman
check the entire system at least once each year and any
other time that you feel one is needed. Your serviceman
should examine these areas of your unit:
●
Filters
●
Motors and drive system components
●
Economizer gaskets (for possible replacement)
●
Safety controls (for mechanical cleaning)
●
Electrical components and wiring (for possible replacement and connection tightness)
●
Condensate drain (for cleaning)
●
Unit duct connections (to see that they are physically
sound and sealed to the unit casing)
●
Unit mounting support (for structural integrity)
●
The unit (for obvious unit deterioration)
installation & owner’s manual
17
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