Intramech SWC-04-V-ECM Operation manual

SK2013-SON-002-TechMnl-SWC-002
HYDRONIC HIGH-WALL FAN COILS
INSTALLATION OPERATION AND
SERVICE MANUAL
SWC~EC SERIES

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SK2013-SON-002-TechMnl-SWC-002
INVESTING IN QUALITY, RELIABILITY & PERFORMANCE.
ISO 9001 QUALITY
Every product is manufactured
to meet the stringent
requirements of the
internationally recognized ISO
9001 standard for quality
assurance in design,
development and production.
CE SAFETY STANDARDS
All products conform to the
Certificate Europe directives
(Machinery Safety,
Electromagnetic Compatibility
and Low Voltage), as required
throughout the European
Community, to guarantee correct
standards of safety.
WEEE MARK
All products conform to the “WEEE”
directive to guarantee correct standards
of environmental solutions.
World Leading Design and Technology
Equipped with the latest CAD/CAM computer
aided design and manufacturing technology, our
factories in China and Thailand produce over
2,000,000 air conditioning units each year, all
conforming to the highest international standards
of quality and safety.
The Highest Standards of Manufacturing
In order to guarantee the very highest
standards and performance, we manage every
stage in the manufacturing of our products.
Throughout the production process we maintain
strict control, originating with our extensive
resources in research and development through
to the design and manufacture of almost every
individual component, from molded plastics to
the assembly of units and controllers.
QualityControlled from Start to Finish
Our highly trained staff and strict quality
control methods enable us to produce
products with an exceptional reputation for
reliability and efficiency, maintained over
many years. As well as full CE certification
and ISO 9001, several products have
UL/CSA (NRTL) safety approval plus ARI
Certification in the USA, ROHS compliance for
Europe, giving you the confidence of knowing our
company is the right choice when selecting air
conditioning equipment.
ALWAYS MAKE SURE THIS MANUAL REMAINS WITH THE SWC-ECM WATER HIGH-WALL UNIT. READ
THIS MANUAL BEFORE PERFORMING ANY OPERATION ON THE SWC-EC WATER HIGH-WALL UNIT.

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SK2013-SON-002-TechMnl-SWC-002
Table of Content
MODEL CODE NOMENCLATURE .......................................................................................................... 5
A. GENERAL DESCRIPTION............................................................................................................... 6
B. TECHNICAL DATA ........................................................................................................................ 7
B.1. GENERAL SPECIFICATION .................................................................................................................................. 7
B.1.1. SWC–V–EC Series 3-Speed Specifications ..........................................................................................................7
B.2. COIL DATA ..................................................................................................................................................... 9
B.2.1. 2-pipe systems ...................................................................................................................................................9
B.3. PERFORMANCE TABLES .................................................................................................................................. 10
B.3.1. Cooling Capacity Tables –2-pipe systems .......................................................................................................10
B.3.2. Heating Capacity Table –2-pipe systems ........................................................................................................14
B.4. DIMENSIONAL DRAWINGS .............................................................................................................................. 18
B.5. VALVE INFORMATION .................................................................................................................................... 20
B.5.1. 2-Way Valve Body ............................................................................................................................................20
C. SERVICE AND INSTALLATION ..................................................................................................... 21
C.1. INSTALLATION OF HIGH-WALL UNIT ................................................................................................................. 21
C.1.1. Selecting a Location .........................................................................................................................................21
C.1.2. Mounting Plate Dimensions.............................................................................................................................22
C.1.3. Installing the Mounting Plate ..........................................................................................................................23
C.1.4. Drilling the Condensate Drainage Hole............................................................................................................23
C.1.5. Installing the Hydronic Unit .............................................................................................................................24
C.1.6. Drainage Piping Works.....................................................................................................................................24
C.2. UNIT MAINTENANCES AND PREPARATIONS........................................................................................................ 25
C.2.1. Opening and Closing Of Lift-Up Grille Cover....................................................................................................25
C.2.2. Removing Front Cover Assembly .....................................................................................................................25
C.2.3. Air Purging .......................................................................................................................................................25
C.2.4. Wiring Connections..........................................................................................................................................25
C.3. PIPE CONNECTIONS WITH VALVE ..................................................................................................................... 26
D. CONTROL SPECIFICATIONS ........................................................................................................ 27
D.1. SK-NCSWC-001 COMPLETE FUNCTION FCU CONTROLLER ................................................................................. 27
D.1.1. Abbreviations...................................................................................................................................................27
D.1.2. Definition of Input/Output ..............................................................................................................................27
D.1.3. Wiring Diagram SK-NCSWC-001.......................................................................................................................28
D.1.4. Configuration Settings .....................................................................................................................................29
D.1.5. Control Logics For 2-Pipe System.....................................................................................................................31
D.1.6. Control Logics For 4-Pipe System.....................................................................................................................35
D.1.7. Auto Fan Speed................................................................................................................................................38
D.1.8. Louver ..............................................................................................................................................................39
D.1.9. Buzzer ..............................................................................................................................................................39
D.1.10. Auto Restart.....................................................................................................................................................39
D.1.11. Operation Of Control Panel On High-Wall Unit ...............................................................................................40
D.2. LED LIGHTS.................................................................................................................................................. 41
D.2.1. LED Indication and Error Description...............................................................................................................42
D.2.2. LED indication on Master/Slave connection....................................................................................................43
D.3. NETWORKING SYSTEM ................................................................................................................................... 44
D.3.1. Master-Slave Network .....................................................................................................................................44
D.3.2. Master –Slave Network Setup ........................................................................................................................45
D.3.3. Master-Slave Communication Method............................................................................................................48
D.3.4. Unit Network Wiring Scheme ..........................................................................................................................49
D.4. SK-NCSWC-002 LIMITED FUNCTION FCU CONTROLLER .................................................................................... 50
D.4.1. Definition of Input/Output ..............................................................................................................................50
D.4.2. Wiring diagram SK-NCSWC-002 .......................................................................................................................51
D.4.3. Onboard configuration ....................................................................................................................................52

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SK2013-SON-002-TechMnl-SWC-002
D.4.4. Control Logics ..................................................................................................................................................52
D.4.5. LED Indication ..................................................................................................................................................53
D.4.6. Error Description..............................................................................................................................................53
D.5. OPEN MODBUS PROTOCOL ............................................................................................................................. 54
E. USERS INTERFACE ..................................................................................................................... 58
E.1. REMOTE CONTROL HANDSET .......................................................................................................................... 58
E.2. WIRED WALL PAD......................................................................................................................................... 59
E.2.1. Wall Pad Display ..............................................................................................................................................59
E.2.2. Wall Pad Operation Guidelines........................................................................................................................60
E.2.3. EC unit RPM setting .........................................................................................................................................63
E.3. SENSOR RESISTANCE R-T CONVERSION TABLE.................................................................................................... 64
E.4. T ROUBLESHOOTING G UIDE .............................................................................................................................. 66
E

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SK2013-SON-002-TechMnl-SWC-002
Model Code Nomenclature
SWC
-
06
-
V
S
-
ECM
ECM
EC motor configuration
S
Complete function onboard PCB with
integrated group control functionality.
W
Limited function onboard PCB with
drain-pump, louver and zone control
functionality.
V
2-pipe system
04
Model. See General Specification
(section B) for cooling/heating Sizes
capacities
06
12
15
18
20
24
SWC
Hydronic high-wall C Series

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SK2013-SON-002-TechMnl-SWC-002
A. General Description
This High-Wall Unit is designed to meet and exceed demanding requirements for efficiency, quiet
operation and good looks. The sleek profile and elegantly styled cabinet complements any interior
design theme, and the microprocessor assures accurate environmental control.
Cabinet ~ the cosmetically attractive cabinet is constructed of durable flame resistant acrylonitrile-
butadiene-styrene (ABS) plastic. The silver white color and rounded corners provide its
contemporary appearance.
Water Coil ~ the water coil has a large heat transfer surface and utilizes the latest technology in fin
profile. It combines an advanced technology approach with the security of a traditional tube
thickness design. The water coil is also equipped with an air vent valve and a water purge valve.
Integral Hoses ~ an integral hose is a synthetic elastomer tube, with stainless steel outer
braiding and brass connectors, which enables quick, low cost connections with no brazing.
Blower and Motor ~ the High-wall unit incorporates only specially designed and tested high
power-factor, permanent split capacitor type blower motors, allowing the tangential blower wheel to
provide optimum performance in airflow-efficiency and quiet operation.
Filters ~ washable, easy-to-remove, fine mesh air filters are standard to all High-wall models. Tabs
located on the front of the unit can be unsnapped, allowing the filter to be easily slid downward
and removed. No tools are required, nor are dismantling of any equipment.
Air Grille Distribution ~ all High-wall units are equipped with both deflector blades and
independent directional vanes, enabling supply air to be automatically distributed, and air flow and
direction customized.
Microprocessor Control ~ see D. Controls Specifications (pages 27 - 54) for complete
control specifications and details. The main design features include:
~ FCEER rating class: A/B.
~ FCCOP rating class: B/C.
~ High efficiency brushless DC motor with PID algorithmic processing in auto-mode.
~ 2-pipe, 2-pipe and booster electric heat, 2-pipe and primary electric heat, 4-pipe with 4x2
device installed.
~ Cool, Heat, Auto, Dehumidifier and Fan modes.
~ Sleep, Auto-Fan, Daily Timer, Auto-Restart with memory functions.
~ User friendly remote control handset.
~ Heat and cool temperature protections and safety cut out.
~ 2-way and 3-way on/off valve control.
~ Addressable control and error diagnostics (Master-Slave) for sub-networks of up to 32
units, with IR handset as global control interface.
~ Wired wall pad controller (optional) with 7-day programmable timer, real-time clock, network
control (global and addressable) and error diagnostics.
~ Manual control panel in cabinet.
~ Auxiliary switch for cooling and heating signal.
~ Occupancy (remote on/off) contacts / economy mode contacts.
~ Open Modbus communication protocol.
~ Local PC host control solution (optional).

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SK2013-SON-002-TechMnl-SWC-002
B. Technical Data
B.1. General Specification
B.1.1. SWC–V–EC Series 3-Speed Specifications
Product range:SWC-ECM Hydronic High Wall with EC Motor
SWC-V~-ECM Hydronic High Wall 2-pipe with EC Motor
SWC-[Size]-V~-ECM
04
06
12
15
Unit Configuration
Configuration
2-pipe
Number Of Fan Blowers
Single
Power Supply
(V/Ph/H
z)
230/1/50
220/1/60
Operation Control
~S: Complete function onboard PCB with integrated group control functionality, incl. 1 pc return air sensor
and 2 pcs temperature sensors.
~W: Limited function onboard PCB with drain-pump, louver and zone control functionality, incl. 1 pc coil
temperature sensors.
Performance Data
Air
Total Air Flowe
H
m3/hr
370
500
500
645
M
290
370
370
445
L
220
290
290
370
Cooling
Cooling Capacitye
H
kW
1.31
2.17
2.59
3.16
M
1.09
1.71
2.03
2.36
L
0.88
1.43
1.68
2.03
Sensible Cooling
Capacitye
H
0.97
1.59
1.88
2.31
M
0.80
1.25
1.46
1.71
L
0.64
1.04
1.2
1.46
FCEERe
Rating
142
175
207
192
Class
B
B
A
A
Heating
Heating Capacitye
H
kW
1.60
2.64
3.12
3.83
M
1.33
2.08
2.44
2.83
L
1.06
1.71
1.98
2.44
Max. Electric Heater Capacity
0.6
1.2
FCCOPe
Rating
172
211
246
232
Class
B
B
B
B
Sound
Sound PressureLevel ( Outlet )
dB(A)
27/24/21
35/27/24
35/27/24
41/32/27
Sound Power Level ( Outlet )e
38/35/32
46/38/35
46/38/35
52/43/38
Electrical
Fan Motor Powere
H
W
10
13
13
20
M
8
10
10
13
L
6
8
8
10
Fan Motor Apparent Power @ H
20
32
32
50
Fan Motor Running Current @ H
A
0.08
0.142
0.142
0.182
Hydraulic
Cooling Water Flow Rate
H
L/h
225
370
446
543
M
187
294
348
406
L
150
244
288
348
Cooling Pressure Drope
H
kPa
10.1
12
10
14.1
M
7.4
8.06
6.62
8.58
L
5.1
5.9
4.8
6.62
Heating Water Flow Rate
@H/M/L
L/h
Same as "Cooling Water Flow Rate"
Heating Pressure Drope
H
kPa
9
9
11
12
M
4.5
4.5
7
7
L
3.5
3.5
4
5
Water Content
L
0.045
0.0789
0.124
0.124
Construction
and Packing Data
Water
Connections
Type
Socket (Threaded Female)
In
mm [in]
12.70 [1/2]
Out
Condensate Drainage Connection
16 [0.63]
Dimensions
L
mm
876
W
228
H
300
Net Weight
Kg
11
12
13
13
1."e" refers to technical information listed on the Eurovent website. Eurovent testing
conditions:
a. Cooling mode (2-pipe):
b. Heating mode (2-pipe):
- Return air temperature: 27C DB/ 19C WB.
- Return air temperature: 20C.
- Inlet/ outlet water temperature: 7C/ 12C.
- Inlet water temperature: 50C.
- Water flow-rate: variable.
- Water flow-rate: same as 2-pipe
cooling.

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SK2013-SON-002-TechMnl-SWC-002
Product range:SWC-ECM Hydronic High Wall with EC Motor
SWC-V~-ECM Hydronic High Wall 2-pipe with EC Motor
SWC-[Size]-V~-ECM
18
20
24
Unit Configuration
Configuration
2-pipe
Number Of Fan Blowers
Single
Power Supply
(V/Ph/Hz)
230/1/50
220/1/60
Operation Control
~S: Complete function onboard PCB with integrated group control functionality, incl. 1 pc
return air sensor and 2 pcs temperature sensors.
~W: Limited function onboard PCB with drain-pump, louver and zone control functionality,
incl. 1 pc coil temperature sensors.
Performance Data
Air
Total Air Flowe
H
m3/hr
876
980
1240
M
740
760
1080
L
570
600
760
Cooling
Cooling Capacitye
H
kW
4.38
5.19
6.25
M
3.84
4.23
5.61
L
3.12
3.50
4.23
Sensible Cooling Capacitye
H
3.18
3.73
4.52
M
2.78
3.03
4.04
L
2.24
2.49
3.03
FCEERe
Rating
213
180
126
Class
A
B
B
Heating
Heating Capacitye
H
kW
5.25
6.14
7.44
M
4.58
4.97
6.65
L
3.68
4.09
4.97
Max. Electric Heater Capacity
1.6
FCCOPe
Rating
255
212
153
Class
B
B
C
Soun
d
Sound PressureLevel ( Outlet )
dB(A)
46/40/34
41/35/30
48/45/35
Sound Power Level ( Outlet )e
57/51/45
52/46/41
59/56/46
Electrical
Fan Motor Powere
H
W
30
45
83
M
20
24
60
L
13
18
24
Fan Motor Apparent Power @ H
83
90
200
Fan Motor Running Current @ H
A
0.272
0.4
0.75
Hydraulic
Cooling Water Flow Rate
H
L/h
752
889
1072
M
658
727
961
L
536
601
727
Cooling Pressure Drope
H
kPa
19.4
19.8
27.2
M
15.5
14
22.6
L
10.8
10.1
14
Heating Water Flow Rate
@H/M/L
L/h
Same as "Cooling Water Flow Rate"
Heating Pressure Drope
H
kPa
16
16
25
M
13
12
19
L
8
8
13
Water Content
L
0.192
0.252
0.252
Construction
and Packing Data
Water
Connections
Type
Socket (Threaded Female)
In
mm [in]
12.70 [1/2]
Out
Condensate Drainage Connection
16 [0.63]
Dimensions
L
mm
876
1063
W
228
240
H
300
310
Net Weight
Kg
14
16
16
1."e" refers to technical information listed on the Eurovent website. Eurovent testing conditions:
a. Cooling mode (2-pipe):
b. Heating mode (2-pipe):
- Return air temperature: 27C DB/ 19C WB.
- Return air temperature: 20C.
- Inlet/ outlet water temperature: 7C/ 12C.
- Inlet water temperature: 50C.
- Water flow-rate: variable.
- Water flow-rate: same as 2-pipe cooling.

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SK2013-SON-002-TechMnl-SWC-002
B.2. Coil Data
B.2.1. 2-pipe systems
Model
Fin Height
(mm.)
Fin Length
(mm.)
Fins per Inch
No. of Rows
No. of
Copper
No. of
Circuits
Tube
Diameter
(mm)
SWC-04
230
680
19.5
2
8
2
7
SWC-06
357
680
2
20
4
7
SWC-12
357
680
2
26
5
7
SWC-15
357
680
2
26
5
7
SWC-18
357
680
2
34
5
7
SWC-20
378
845
2
36
6
7
SWC-24
378
845
2
36
6
7

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SK2013-SON-002-TechMnl-SWC-002
B.3. Performance Tables
B.3.1. Cooling Capacity Tables –2-pipe systems
SWC-04-V-ECM
TAI DB24°C-WB17.4°C
TAI DB27°C-WB19°C
TAI DB27°C-WB19.5°C
TAI DB28°C-WB21°C
Twi
qa
Pf
Pfs
Tad
Taw
dPw
Qw
Pf
Pfs
Tad
Taw
dPw
Qw
Pf
Pfs
Tad
Taw
dPw
Qw
Pf
Pfs
Tad
Taw
dPw
Qw
°C
m3/h
kW
kW
°C
°C
kPa
l/s
kW
kW
°C
°C
kPa
l/s
kW
kW
°C
°C
kPa
l/s
kW
kW
°C
°C
kPa
l/s
5
370
1.3
0.913
16.1
13.3
10.1
0.0618
1.58
1.09
17.5
14.2
14.1
0.0754
1.68
1.09
17.5
14.5
15.6
0.08
1.97
1.15
18
15.4
20.7
0.094
290
1.08
0.757
15.7
13
7.36
0.0514
1.31
0.902
17
13.9
10.3
0.0626
1.39
0.902
17
14.1
11.4
0.0664
1.64
0.95
17.4
15
15
0.078
220
0.867
0.605
15.1
12.7
5.07
0.0413
1.05
0.72
16.3
13.4
7.06
0.056
1.12
0.721
16.3
13.7
7.8
0.0532
1.31
0.759
16.7
14.5
10.2
0.0624
7
370
1.02
0.793
17.2
14.2
6.6
0.0487
1.31
0.971
18.6
15.1
10.1
0.0625
1.41
0.0971
18.6
15.4
11.4
0.0671
1.7
1.03
19
16.2
15.8
0.0813
290
0.853
0.658
16.8
14
4.86
0.0407
1.09
0.804
18.1
14.8
7.4
0.052
1.17
0.804
18.1
15.1
8.33
0.0559
1.42
0.853
18.5
15.9
11.5
0.0675
220
0.687
0.526
16.2
13.7
2.04
0.0328
0.877
0.642
17.4
14.5
5.1
0.0418
0.94
0.642
17.4
14.7
5.73
0.0448
1.13
0.681
17.8
15.5
7.89
0.0541
9
370
0.721
0.67
18.2
15.2
3.6
0.0344
1.02
0.85
19.6
16
6.44
0.0485
1.11
0.851
19.6
16.3
7.54
0.0532
1.41
0.91
20.1
17.1
11.3
0.0675
290
0.604
0.556
17.9
15
1.7
0.0288
0.849
0.705
19.2
15.8
4.75
0.0405
0.93
0.705
19.2
16
5.54
0.0444
1.18
0.754
19.6
16.8
8.28
0.0562
220
0.49
0.445
17.4
14.8
1.37
0.0234
0.684
0.563
18.6
15.5
3.3
0.0327
0.749
0.563
18.6
15.7
3.84
0.0357
0.945
0.603
19
16.5
5.7
0.0451
Pf: total cooling capacity Tal: in flow air temperature dpw: pressure drop standard coil Twi: entering water temperature, water temperature arise 5°C.
Qw: fluid flow rate in heat exchanger Qa: air flow Pfs: sensible cooling capacity Tad: discharge air dry temperature Taw: discharge air wet temperature