TGM CAH-F18CGR1-FQA-E3 User manual

Technical Manual
R410A 208/230V 1Ph 60Hz
15 SEER Wall Mounted Air Handler Unit
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15 SEERWALL MOUNTED AIRHANDLERSYSTEMTECHNICALMANUAL
Part 1. General Information 1
1. Nomenclature 2
2. Model Names of Indoor/Outdoor Units 2
4. Features 4
Part 2. Indoor Unit 5
1. Features 6
2. Specification 9
3. Dimension 10
4. Service Space 11
5. Wiring Diagrams 12
6. Electric Characteristics 13
7. Electrical Wiring 13
8. Field Wiring 13
Part 3 Outdoor Unit 14
1. Specification 15
2. Dimension 16
3. Service Space 17
4. Wiring Diagrams 18
5. Electric Characteristics 18
6. Operation Limits 19
7. Sound Levels 19
8. Refrigerate diagram 20
Part 4 Installation 21
1. Precaution on Installation 22
2. Emptying 24
3. Additional Refrigerant Charge 24
4. Insulation Work 25
Part 5 Unit maintenance 27
1. Fault indicator of indoor unit 28
2. Fault indicator of outdoor unit 28
3. Troubleshooting of Fault Codes 29
4. Exploded views and part list 33
Part 1. General Information
1. Model Names of Indoor/Outdoor Units 2
2. External Appearance 3
3. Features 4

15 SEERAIRHANDLERSYSTEMTECHNICALMANUAL
1. Nomenclature
1.1 Indoor unit
1.2 Outdoor unit
2. Model Names of Indoor/Outdoor Units
2.1 Indoor Units
Model name
Dimension(W×H×D)(inch)
Power supply
15 SEER Cooling Only
CAH-F18CGR1-FQA-E3
20-2/3×36-1/2×15
208/230V-1Ph-60Hz
CAH-F24CGR1-FQA-E3
20-2/3×36-1/2×15
208/230V-1Ph-60Hz
CAH-F30CGR1-FQB-E3
22×39-1/2×19
208/230V-1Ph-60Hz
CAH-F36CGR1-FQB-E3
22×39-1/2×19
208/230V-1Ph-60Hz
2.2 Outdoor Units
Model name
Dimension (W×H×D) (inch)
Power supply
15 SEER Scroll Cooling Only
CTFRA15C018A
22×25×22
208/230V-1Ph-60Hz
CTFRA15C024A
22×25×22
208/230V-1Ph-60Hz
CTFRA15C030A
29×25×29
208/230V-1Ph-60Hz
CTFRA15C036A
29×25×29
208/230V-1Ph-60Hz
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15 SEERAIRHANDLERSYSTEMTECHNICALMANUAL
3. External Appearance
3.1 Indoor unit
3.2 Outdoor unit
Note: Standard outdoor unit is using plastic grill. Metal grill can be customized.
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15 SEERAIRHANDLERSYSTEMTECHNICALMANUAL
4. Features
4.1 Operation features
• Long Piping & Cost Effective
• Low noise operation, as low as 48dB(A)
• 24V control, Two-stage fan speed control, anti-cooling fan delay, heating fan delay and
transformer included.
4.2 Performance features
• AHRI Certified & ETL listed.
• R410A environment friendly refrigerant.
• Wide operation temperature range：Cooling: 57⁰F-115⁰F; Heating(general mode):
19⁰F-75⁰F; Heating(high vertical mode): 32⁰F-75⁰F
• Continuous Cooling Transformation Inner-grooved oxygen free copper pipe with high
thermometric conductivity.
4.3 Reliability features
• Painted galvanized steel cabinet.
• Well-known brand scroll compressor, reliable quality.
• Condenser coils constructed with copper tubing and enhanced aluminum fins.
• 5-speed DC motors, provide selections of air flow to meet desired applications.
• Intelligent defrost programs, unit will choose different defrost program according to real
condition.
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
Part 2. Indoor Unit
1.Features 6
2.Specification 9
3.Dimension 10
4.Service Space 11
5.Wiring Diagrams 12
6.Electric Characteristics 13
7.The Specification of Wiring 13
8.Field Wiring 13
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
1. Features
(1) “A” shape coils, constructed with Inner-grooved oxygen free copper pipe and enhanced
aluminum fins.
(2) ECM motors, the air handler has multiple fan modes to choose from, which can flexibly
respond to various environments.
(3) Powerful fan speed, and the motor is covered with insulation material, which can ensure
that the motor runs in a safe state.
(4) Use Piston as throttle device
(5) Optional air filter (Optional)
Detachable air filter for cleaning or renewal, designed to provide fresh and healthy air
indoors.
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
Remark: The thickness of the filter should within 1”(25mm).
(6) Electric Heater with Different Power (Optional)
15 SEER Wall Mounted AHU Electric Heater
Specification
Bom
Applicable model
5 kw
8024325A0001
18/24/30/36K
7.5 kw
8024325A0002
10 kw
8024325A0003
24/30/36K
(7) The wall mounted AHU comes standard with two different options for mounting
WALL MOUNT
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
FRAME MOUNT
Remark: The detailed installation instruction, refer to part 3 of installation manual.
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
2. Specification
Model
CAH-F18CGR1-
FQA-E3
CAH-F24CGR1-
FQA-E3
CAH-F30CGR
1-FQB-E3
CAH-F36CGR
1-FQB-E3
Cooling
Capacity
Btu/h
18000
23600
28000
34000
SEER2
Btu/h
.W
11.70
11.7
11.70
11.7
EER2
Btu/h
.W
14.30
14.3
14.30
14.3
Indoor fan
motor
Type
ECM
ECM
ECM
ECM
Power supply
AC220-240V/50
60Hz
AC220-240V/50
60Hz
AC220-240V/5
0 60Hz
AC220-240V/5
0 60Hz
Model
DZJ-249F-12
DZJ-249F-12
DZJ-373F-12
DZJ-373F-12
rate current
A
2.4
2.4
3.8
3.8
Output
W
249
249
373
373
Speed
rpm
1050
1050
1050
1050
Static pressure
Pa
75
75
75
75
Indoor air flow
CFM
620
710
1010
1080
Indoor noise level
dB(A
)
48.5
49.5
52.5
53.5
Throttling type
Piston
Piston
Piston
Piston
Electric heater
kW
5/7.5kW
5/7.5/10kW
5/7.5/10kW
5/7.5/10kW
Indoor
dimension
Unit
dimension(W*D*
H)
in
20-1/2"×15"×36-1
/2"
20-1/2"×15"×36-1
/2"
21-9/10"x17-1/
2"x39-1/2"
21-9/10"x17-1/
2"x39-1/2"
mm
520×381×927
520×381×927
559×447×1004
559×447×1004
Packing
(WxDxH)
in
23-3/7"×17-1/2"×
39-1/2"
23-3/7"×17-1/2"×
39-1/2"
24-1/2"x21-4/5"
x42-1/10"
24-1/2"x21-4/5"
x42-1/10"
mm
600×450×1005
600×450×1005
625*555*1070
625*555*1070
Net / Gross
weight
kg
37/41.5
37/41.5
47.5/53
47.5/53
lbs
88/101
88/101
106/124.4
106/124.4
Notes:
1. Nominal cooling capacities are based on the following conditions:
Indoor temp: 26.7°CDB, 19.4°CWB; Outdoor temp: 35°CDB，23.9°CWB;
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 21.1°CDB，15.6°CWB; Outdoor temp: 8.3°CDB, 6.1°CWB;
3. Actual noise level may differ, depending on the room structure, etc., since these noise values are from an
anechoic room.
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
3. Dimension
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
4. Service Space
Make sure enough clearance is reserved for effective air flow and convenient for installation
and maintenance.
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
5. Wiring Diagrams
18K/24K/30K/36K
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
6. Electric Characteristics
7. Electrical Wiring
Note:
The diameters of wires or lines should not be less than the corresponding ones listed in the
table below; Besides, if the power wires is quite long from the unit, please choose the
windings with larger cross-section area to guarantee the normal power supply.
8. Field Wiring
1. To avoid the electrical shock, please connect the air conditioner with the ground lug.
The main power plug in the unit has been joined with the ground wiring, please don't change it
freely.
2. The power socket is used as the air conditioner specially.
3. Don't pull the power wiring hard.
4. When connecting the air conditioner with the ground, observe the local codes.
5. If necessary, use the power fuse or the circuit, breaker or the corresponding scale
ampere.
# Remark: Please refer to the installation manual for more different kinds of wiring information.
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
Part 3 Outdoor Unit
1. Specification 15
2. Dimensions 16
3. Service Space 17
4. Wiring Diagrams 18
5. Electric Characteristics 18
6. Operation Limits 19
7. Sound Levels 19
8. Refrigerate diagram 20
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
1. Specification
Cooling only
Model
CTFRA15C018A
CTFRA15C024A
CTFRA15C030A
CTFRA15C036A
Outdoor power supply
V/Ph
/Hz
230V/1N/60HZ
230V/1N/60HZ
230V/1N/60HZ
230V/1N/60HZ
Cooling
Capacity
Btu/
h
18000
23600
28000
34000
EER2
Btu/
h.W
11.70
11.7
11.70
11.7
SEER2
Btu/
h.W
14.30
14.3
14.30
14.3
Compressor
Brand
LG
LG
LG
LG
Model
APG016KAC
APG020KAC
APG024KAC
APG029KAC
Type
Scroll
Scroll
Scroll
Scroll
Capacity（
DOE）
Btu/
h
15500
27300
32700
39600
Input（DOE）
W
1580
1294
1521
1808
Outdoor fan
motor
Type
DC
DC
DC
DC
Model
DRN-310-200-10
DRN-310-200-10
DRN-310-200-10
DRN-310-200-10
Power
output
W
200
200
200
200
Speed
rpm
850
850
950
950
Outdoor air flow
CFM
1500
1700
1900
2800
Outdoor noise level
dB(A
)
61
60
61.5
62
Outdoor
dimension
Unit
(W*H*D)
in
21-4/5×25×21-4/
5
21-4/5×25×21-4/
5
29-1/7×25×29-1/
7
29-1/7×25×29-1/7
mm
554×633×554
554×633×554
740×633×740
740×633×740
Packing
(W*H*D)
in
22-3/5×25-9/10×
22-3/5
22-3/5×25-9/10×
22-3/5
29-9/10×25-9/10
×x29-9/10
29-9/10×25-9/10×
x29-9/10
mm
575×660×575
575×660×575
760×660×760
760×660×760
Net / Gross
weight
kg
47/49
57/59
73/76
74/77
lbs
101/106
125/130
160/167
163/169
Refrigerant
pipe
Liquid side
in
Ф3/8
Ф3/8
Ф3/8
Ф3/8
Gas side
in
Ф3/4
Ф3/4
Ф3/4
Ф3/4
Throttle part
Piston
Piston
Piston
Piston
Long line set
length
Equivalent
length
ft
60
60
60
60
Linear
length
ft
130
130
130
130
Design pressure
PSIG
550 / 250
550 / 250
550 / 250
550 / 250
Operation
temp range
Cooling
℉
57-115
57-115
57-115
57-115
Heating
℉
19-75
19-75
19-75
19-75
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
2. Dimension
When installing the outdoor unit on the roof, make sure that the roof can support the weight of
the outdoor unit. It is recommended to choose appropriate isolation to prevent sound or
vibration from being transmitted to the building structure.
Model
H×W×L(inch)
18K/24K
25×21-4/5×21-4/5
30K/36K
25×29-1/7×29-1/7
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14SEERAIRHANDLERSYSTEMTECHNICALMANUAL
3. Service Space
1. Make sure that the discharge area at least 60 inches above the top of the unit is
unrestricted.
2. The clearance from one side of the access panel to the wall should be at least 24 inches.
3. Except for access panel, please leave a min 12” from shrubbery around other side panels.
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14.3 SEER2AIRHANDLERSYSTEMTECHNICALMANUAL
4. Wiring Diagram
Cooling only
5. Electric Characteristics
Model
Outdoor Unit (Scroll)
Hz
Voltage
Min.
Max.
MIN. Circuit
Ampacity
Maxi Fuse
CTFRA15C018A
60
208/230V
187V
253V
13
20
CTFRA15C024A
13
20
CTFRA15C030A
15
25
CTFRA15C036A
20
30
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14.3 SEER2AIRHANDLERSYSTEMTECHNICALMANUAL
6. Operation Limits
Operation mode
Outdoor temperature (℉)
Cooling mode
57~115
General heat pump mode
19~75
High vertical heat pump mode
32~75
7. Sound Levels
Model
Noise level dB(A)
18K
60
24K
60
30K
61.5
36K
62
Note: Sound level is measured at a point 1 m in front of the unit, at a height of (Unit body height +1)/2 m.
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