Fisher PCG-06, PCG-08, PCG-09, PCG-12, PCG-16 Installation, Operation And Service Manual

INSTALLATION

OPERATION AND SERVICE MANUAL

PCG – PS SERIES

4 PIPE HYDRONIC CASSETTE

AIR CONDITIONERS

2010 V.1.0

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.

Quality Controlled 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 THAT THIS
MANUAL REMAINS WITH THE PCG-VS
WATER CASSETTE. READ THIS MANUAL
BEFORE PERFORMING ANY OPERATION
ON THE PCG-VS WATER CASSETTE.

HYDRONIC CASSETTE 3

INDEX

PCG-PS SERIES
4 PIPE HYDRONIC CASSETTES

PAGE
A. CASSETTE MODEL ASSIGNMENTS 4
B. SPECIFICATIONS 5-6

a) COIL DATA
b) COOLING CAPACITY TABLES
c) ETHYLENE GLYCOL SOLUTIONS
d) HEATING CAPACITY TABLE

7

7-9

10

11-13

C. INSTALLATION MANUAL

SAFETY CONSIDERATIONS
OPERATING LIMITS
BEFORE INSTALLATION
SELECT LOCATION
INSTALLATION LOCATION
INSTALLATION METHOD
OPENING DIMENSIONS AND POSITIONS FOR SUSPENSION BOLTS
DRAIN PIPE WORK
WATER CONNECTIONS
VALVE CONFIGURATION
EXTERNAL DRAIN PAN
FRESH AIR RENEWAL CONNECTION
BRANCH DUCT CONNECTION
INTERCONNECTING WIRING
CONTROL BOX CONFIGURATION
MOUNTING FRONT PANEL ASSEMBLY
FILTER REMOVAL
MAINTENANCE
HOW TO ACCESS AIR VENT AND WATER PURGE
HOW TO CONNECT NON-DEFAULT FAN SPEED
HOW TO FIX THE MOTOR AND FAN BLOWER
HOW TO FIX CONDENSATE PUMP AND INTERNAL VALVE
HOW TO FIX CONTROL BOX
HOW TO INSTALL ELECTRIC HEATER

14-36

14
14
15
15
16
17

18-20

21
21

21-22

23
23-24
24-25

26

27

28

28

29

30
30-31

32

33

34
35-36

D. EXPLODED DRAWINGS WITH PARTS DESCRIPTIONS 37-38
E. DIMENSIONAL DRAWINGS 39-41
F. VALVE INFORMATION 42-43
G. REMOTE CONTROL HANDSET 44-45
H.
I.
J.
K.
L.
M.
N.

WIRED WALL PAD CONTROL
CONTROLS SPECIFICATION WITH MASTER-SLAVE CONTROL
SENSOR RESISTANCE R-T CONVERSION TABLE
CONTROL AND POWER SUPPLY WIRING DIAGRAM
MASTER-SLAVE CONTROL WIRING DIAGRAM
TROUBLE SHOOTING
APPENDIX I – MASTER SLAVE COMMUNICATION SETTING

46-49
50-57
58-59

60

61

62
63-65

HYDRONIC CASSETTE 4

CASSETTE MODEL ASSIGNMENTS

P C G - 0 6 - P S

S 230V/1PH/50HZ

P CHILLED/HOT WATER, 4-PIPE

06 NOMINAL 3.24 KW
08 NOMINAL 3.60 KW
09 NOMINAL 4.15 KW
12 NOMINAL 5.10 KW
16 NOMINAL 5.90 KW

PCG HYDRONIC CASSETTE

G SERIES

HYDRONIC CASSETTE 5

PCG – PS (4-PIPE) SERIES 3-SPEED SPECIFICATIONS

Model PCG-06 PCG-08 PCG-09 PCG-12 PCG-16

Number Of Fan Blowers Single Single Twin Twin Twin

H 750 846 1098 1296 1650

M 648 540 924 1176 1300

Total flow

L

m3/hr

588 410 858 1098 1100

H 3.24 3.60 4.15 5.10 5.90

M 2.86 3.02 3.23 4.70 4.80

Cooling Capacity*

L

kW

2.60 2.42 3.06 3.95 3.65

H 2.75 2.94 3.82 4.40 4.93

M 2.48 2.60 3.16 4.04 4.31

Sensible Cooling Capacity

L

kW

2.33 2.22 2.98 3.54 3.56

H 4.14 4.43 6.67 7.20 7.90

M 3.84 4.00 5.85 6.60 6.95

Heating Capacity **

L

kW

3.64 3.41 5.57 5.95 5.96

Noise Level @ 1 M (H/M/L) dB(A) 43/41/35 46/43/35 40/38/32 43/42/36 48/44/38

Power Supply (V/Ph/Hz) 230/1/50

Fan Motor Power W 58 60 62 116 124

Fan Motor Running Current A 0.24 0.32 0.34 0.48 0.64

Fan Motor Starting Current A 0.76 0.89 0.88 1.52 1.77

Operation Control & Thermostat Remote Control Handset & Wired Wall Pad

Cooling Water Flow Rate L/h 580 636 733 901 1043

Heating Water Flow Rate L/h 354 380 571 617 677

Cooling Water Pressure Drop kPa 12.0 14.7 27.8 22.4 29.0

Heating Water Pressure Drop kPa 3.0 3.5 8.7 10.1 12.0

Cooling Water Content L 1.07 1.07 1.36 1.91 1.90

Heating Water Content L 0.49 0.49 0.86 0.86 0.86

Cond. Drain Connection I.D. mm(in) 19.05(3/4)

L mm 585 585 1140 1140 1140

W mm 585 585 580 580 580

Dimensions

H mm 290 290 250 290 290

Panel Dimensions (L x W x H) mm 680×680×28 680x1240x28

Gross Weight Kg 33 33 52 59 59

Connection Method

Socket (Threaded Female)

Water In mm(in) 19.05(3/4)

Connection Out mm(in) 19.05(3/4)

* Cooling : 27C db/19C wb entering air temperature,7C entering water and 12C leaving water temperature with water flow rates as

above.

**Heating : 20C db entering air temperature ,70C entering water temperature and 60C leaving water temperature.

HYDRONIC CASSETTE 6

PCG – PS (4-PIPE) SERIES 5-SPEED SPECIFICATIONS

Model PCG-06 PCG-08 PCG-09 PCG-12 PCG-16

Number Of Fan Blowers Single Single Twin Twin Twin

5 710 846 1080 1350 1650

4 648 708 738 1236 1350

3 600 648 600 1140 1236

2 450 600 500 852 1140

Total flow

1

M3/hr

350 450 400 650 852

5 3.02 3.60 4.24 5.00 5.98

4 2.86 3.02 2.78 4.75 5.00

3 2.60 2.86 2.32 3.98 4.75

2 1.98 2.60 2.00 3.22 3.98

Cooling Capacity*

1

kW

1.72 1.98 1.62 2.65 3.22

5 2.60 2.94 3.73 4.27 4.85

4 2.48 2.60 2.72 4.04 4.27

3 2.33 2.48 2.27 3.58 4.04

2 1.82 2.33 1.95 2.82 3.58

Sensible Cooling Capacity

1

kW

1.56 1.82 1.58 2.32 2.82

5 4.00 4.43 6.67 6.98 7.91

4 3.84 4.00 5.27 6.60 6.98

3 3.63 3.84 4.63 5.92 6.60

2 2.79 3.63 4.11 5.10 5.92

Heating Capacity **

1

kW

2.05 2.79 3.58 4.20 5.10

Noise Level @ 1 M (H/M/L) dB(A) 44/40/38/32/30 46/44/40/38/32 39/35/33/31/28 45/41/39/33/31 47/45/41/39/33

Power Supply (V/Ph/Hz) 230/1/50

Fan Motor Power W 58 66 100 116 132

Fan Motor Running Current A 0.26 0.29 0.44 0.52 0.58

Fan Motor Starting Current A 0.77 0.88 1.33 1.54 1.77

Operation Control & Thermostat Remote Control Handset & Wired Wall Pad

Cooling Water Flow Rate L/h 533 636 749 883 1057

Heating Water Flow Rate L/h 342 380 571 598 678

Cooling Water Pressure Drop kPa 10.7 14.7 28.8 20.9 29.0

Heating Water Pressure Drop kPa 3.0 3.5 13.0 15.0 17.5

Cooling Water Content L 1.07 1.07 1.36 1.91 1.91

Heating Water Content L 0.49 0.49 0.86 0.86 0.86

Cond. Drain Connection I.D. mm(in) 19.05(3/4)

L mm 585 585 1140 1140 1140

W mm 585 585 580 580 580

Dimensions

H mm 290 290 250 290 290

Panel Dimensions (L x W x H) mm 680×680×28 680x1240x28

Gross Weight Kg 33 33 52 59 59

Connection Method

Socket (Threaded Female)

Water In mm(in) 19.05(3/4)

Connection Out mm(in) 19.05(3/4)

* Cooling : 27C db/19C wb entering air temperature,7C entering water and 12C leaving water temperature with water flow rates as

above.

**Heating : 20C db entering air temperature ,70C entering water temperature and 60C leaving water temperature.

HYDRONIC CASSETTE 7

COIL DATA - COOLING

Fin Length (mm.)

Model

Fin Height

(mm)

Inner Outer

Fins per

inch

No. of

rows

No. of

circuits

Tube

Diameter

PCG-06-08-PS 250 1176 1277 13 2 3 3/8”

PCG-09-PS 200 2148 2286 13 2 3 3/8”

PCG-12-16-PS 250 2148 2286 13 2 5 3/8”

COIL DATA - HEATING

Fin Length (mm.)

Model

Fin Height

(mm)

Inner Outer

Fins per

inch

No. of

rows

No. of

circuits

Tube

Diameter

PCG-06-08-PS 250 1176 1277 13 1 3 3/8”

PCG-09-PS 200 2148 2286 13 1 3 3/8”

PCG-12-16-PS 250 2148 2286 13 1 3 3/8”

COOLING CAPACITY TABLES

PCG-06-PS TAI DB24℃-WB17.4℃ TAI DB27℃-WB19℃ TAI DB27℃-WB19.5℃ TAI DB28℃-WB21

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/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h

750 3.3 2.52 13.8 12.5 12.1 583 4.45 3.08 14.5 12.6 20.7 786 4.85 3 14.6 12.6 24 857 5.9 3.14 15.2 12.9 34.3 1043

648 2.87 2.28 13.2 12.4 9.45 507 3.86 2.79 13.8 12.5 16.1 682 4.2 2.74 14 12.5 18.6 742 5.1 2.85 14.4 12.8 26.4 901

5

588 2.66 2.14 12.9 12.3 8.2 470 3.56 2.63 13.3 12.4 14 630 3.88 2.58 13.6 12.4 16.1 685 4.7 2.68 14 12.7 22.7 830

750 2.75 2.33 14.55 13.35 8.93 486 3.865 2.915 15.15 13.5 16.35 683 4.225 2.83 15.35 13.55 19 746.5 5.28 2.965 15.9 13.85 28.35 933

648 2.405 2.09 14.1 13.25 6.985 425 3.36 2.635 14.5 13.4 12.74 593.5 3.7 2.585 14.7 13.4 15 653.5 4.57 2.69 15.15 13.75 21.85 807.5

6

588 2.24 1.96 13.8 13.1 6.15 395. 3.08 2.48 14.05 13.35 15.95 545 3.395 2.435 14.3 13.35 12.85 599.5 4.215 2.53 14.75 13.65 18.8 744.5

750 2.2 2.14 15.3 14.2 5.76 389 3.24 2.75 15.8 14.4 12 580 3.6 2.66 16.1 14.5 14 636 4.66 2.79 16.6 14.8 22.4 823

648 1.94 1.9 15 14.1 4.52 343 2.86 2.48 15.2 14.3 9.37 505 3.2 2.43 15.4 14.3 11.4 565 4.04 2.53 15.9 14.7 17.3 714

7

588 1.82 1.79 14.7 14 4.1 321 2.6 2.33 14.8 14.3 7.9 460 2.91 2.29 15 14.3 9.6 514 3.73 2.38 15.5 14.6 14.9 659

750 1.86 1.81 16.6 14.7 4.18 328. 2.8 2.51 16.7 15.1 9.1 495 3.09 2.5 16.7 15.2 10.8 546 4.13 2.62 17.2 15.5 18.2 729.

648 1.62 1.55 16.4 14.6 3.21 286. 2.45 2.24 16.3 15 7.18 432. 2.73 2.28 16.1 15.1 8.75 482. 3.59 2.38 16.6 15.4 14.2 635

8

588 1.5 1.47 16.3 14.6 2.8 264 2.25 2.09 16 14.9 6.1 398 2.51 2.14 15.7 15.0 7.5 443. 3.32 2.23 16.2 15.3 12.2 587.

750 1.52 1.48 17.9 15.2 2.6 268 2.32 2.27 17.7 15.8 6.2 410 2.58 2.34 17.4 16 7.7 456 3.6 2.45 17.9 16.3 14.1 636

648 1.3 1.27 17.9 15.2 1.9 230 2.04 2 17.4 15.7 5 360 2.26 2.13 16.8 15.9 6.1 400 3.15 2.23 17.3 16.2 11.1 556

9

588 1.18 1.15 17.9 15.2 1.5 208 1.91 1.86 17.2 15.6 4.2 337 2.11 1.99 16.5 15.8 5 .4 373 2.92 2.09 17 16.1 9.6 516

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total cooling capacity
Qw: Fluid flow rate in heat exchanger Pfs: Sensible cooling capacity
Dpw: Pressure drop standard coil Tad: Discharge air dry bulb temperature
Qa: Air flow Taw: Discharge air wet bulb temperature

Note: Design and specification are subject to change without prior notice for product improvement.

HYDRONIC CASSETTE 8

PCG-08-PS TAI DB24℃-WB17.4℃ TAI DB27℃-WB19℃ TAI DB27℃-WB19.5℃ TAI DB28℃-WB21

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/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h

846 3.7 2.69 14.3 12.5 15.4 654 4.92 3.29 15.1 12.7 25.6 870 5.45 3.28 15.3 12.7 31.1 963 6.62 3.35 15.8 12.9 43.8 1170

700 3.1 2.4 13.5 12.4 11.3 548 4.1 2.93 14.1 12.6 18.5 724 4.45 2.89 14.2 12.6 21.5 786 5.5 3 14.7 12.8 31.5 972

5

550 2.48 2.05 12.6 12.3 7.5 438 3.27 2.5 13 12.5 12.3 578 3.56 2.48 13.1 12.5 14.4 630 4.78 2.66 14.2 12.6 24.5 845

846 3.05 2.52 14.9 13.4 11.2 538 4.26 3.12 15.7 13.6 20.15 753 4.72 3.10 15.85 13.65 24.4 833 5.92 3.18 16.4 13.85 36.25 1046

700 2.57 2.19 14.4 13.3 8.15 453 3.56 2.77 14.8 13.5 14.6 628.5 3.89 2.74 14.9 13.55 17.15 687 4.93 2.84 15.4 13.75 26.1 871

6

550 2.06 1.83 13.8 13.2 5.4 364 2.85 2.36 13.75 13.4 9.75 502.5 3.14 2.34 13.85 13.4 11.65 554.5 4.15 2.485 14.6 13.55 19.35 733.5

846 2.39 2.34 15.5 14.3 7 422 3.6 2.94 16.3 14.5 14.7 636 3.98 2.91 16.4 14.6 17.7 703 5.22 3.01 17 14.8 28.7 922

700 2.03 1.98 15.3 14.2 5 358 3.02 2.60 15.5 14.4 10.7 533 3.33 2.58 15.6 14.5 12.8 588 4.36 2.68 16.1 14.7 20.7 770

7

550 1.64 1.6 15 14.1 3.3 290 2.42 2.22 14.5 14.3 7.2 427 2.71 2.2 14.6 14.3 8.9 479 3.52 2.31 15 14.5 14.2 622

846 2.015 1.965 16.85 14.8 5.05 356 3.06 2.7 17.15 15.2 11.05 540.5 3.315 2.755 16.95 15.45 13.15 585.5 4.55 2.825 17.65 15.65 22.75 804

700 1.685 1.64 16.75 14.75 3.75 297 2.575 2.34 16.6 15.1 8 454.5 2.785 2.38 16.45 15.35 9.45 491.5 3.8 2.51 16.8 15.55 16.4 671

8

550 1.35 1.315 16.6 14.7 2.3 238.5 2.075 1.96 15.95 15 5.35 366.5 2.3 2.02 15.95 15.25 6.6 406.5 3.065 2.16 15.8 15.4 11.22 541.5

846 1.64 1.59 18.2 15.3 3.1 290 2.52 2.46 18 15.9 7.4 445 2.65 2.6 17.5 16.3 8.6 468 3.88 2.64 18.3 16.5 16.8 686

700 1.34 1.3 18.2 15.3 2.5 236 2.13 2.08 17.7 15.8 5.3 376 2.24 2.18 17.3 16.2 6.1 395 3.24 2.34 17.5 16.4 12.1 572

9

550 1.06 1.03 18.2 15.3 1.3 187 1.73 1.7 17.4 15.7 3.5 306 1.89 1.84 17.3 16.2 4.3 334 2.61 2.01 16.6 16.3 8.23 461

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total cooling capacity
Qw: Fluid flow rate in heat exchanger Pfs: Sensible cooling capacity
Dpw: Pressure drop standard coil Tad: Discharge air dry bulb temperature
Qa: Air flow Taw: Discharge air wet bulb temperature

Note: Design and specification are subject to change without prior notice for product improvement.

PCG-09-PS TAI DB24℃-WB17.4℃ TAI DB27℃-WB19℃ TAI DB27℃-WB19.5℃ TAI DB28℃-WB21

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/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h

1098 4.5 3.21 15.4 13.5 32 795 5.9 4.08 16.1 13.5 52.3 1043 6.3 4 16.1 13.6 58.9 1113 8.03 4.16 16.6 13.7 91.3 1419

924 3.51 2.8 14.2 13.4 20.7 620 4.56 3.51 14.7 13.4 32.7 806 5.03 3.48 14.8 13.4 39.3 889 6.34 3.65 15.2 13.6 59.7 1120

5

858 3.3 2.63 14 13.3 18.4 583 4.26 3.33 14.3 13.3 29.2 753 4.63 3.31 14.4 13.4 34 818 5.89 3.46 14.8 13.5 52.4 1041

1098 3.68 3.005 16.1 14.15 22.75 650 5.07 3.905 16.75 14.4 40.55 896 5.44 3.79 16.75 14.5 46.15 961 7.105 3.915 17.3 14.65 74 1255.5

924 2.835 2.45 15.4 14.05 14.55 500.5 3.91 3.305 15.4 14.25 25.2 691 4.295 3.275 15.5 14.35 30.25 759.5 5.585 3.435 15.9 14.55 48.2 986.5

6

858 2.675 2.315 15.15 13.95 13.04 472.5 3.655 3.135 15 14.15 22.5 646 3.945 3.115 15.1 14.35 26.1 697 5.2 3.235 15.6 14.45 42.25 919

1098 2.86 2.8 16.8 14.8 13.5 505 4.15 3.82 17.4 15.3 27.8 733 4.58 3.58 17.4 15.4 33.4 809 6.18 3.67 18 15.6 56.7 1092

924 2.16 2.1 16.6 14.7 8.4 381 3.23 3.16 16.1 15.1 17.7 576 3.56 3.07 16.2 15.3 21.2 630 4.83 3.22 16.6 15.5 36.7 853

7

858 2.05 2 16.3 14.6 7.68 362 3.06 2.98 15.7 15 15.8 539 3.26 2.92 15.8 15.3 18.2 576 4.51 3.01 16.4 15.4 32.1 797

1098 2.72 2.63 17.1 15.1 12.7 480.5 4 3.47 17.9 15.45 26.1 706.5 4.41 3.36 17.95 15.55 31.25 779.5 5.99 3.445 18.55 15.75 53.75 1058.5

924 2.06 1.995 16.95 15.05 7.75 363.5 3.095 2.925 16.7 15.3 16.25 547 3.43 2.885 16.8 15.45 19.8 606.5 4.715 3.025 17.3 15.65 35.05 833

8

858 1.925 1.87 16.8 15 6.59 340 2.905 2.78 16.3 15.2 14.6 513.5 3.18 2.755 16.4 15.4 17.4 562 4.405 2.855 17 15.55 30.9 778.5

1098 2.58 2.46 17.4 15.4 11.9 456 3.76 3.21 18.4 15.6 23.4 664 4.24 3.14 18.5 15.7 29.1 750 5.8 3.22 19.1 15.9 50.8 1025

924 1.96 1.89 17.3 15.4 7.1 346 2.93 2.75 17.3 15.5 14.8 518 3.3 2.7 17.4 15.6 18.4 583 4.6 2.83 18 15.8 33.4 813

9

858 1.8 1.74 17.3 15.4 5.5 318 2.76 2.62 16.9 15.4 13.4 488 3.1 2.59 17 15.5 16.6 548 4.3 2.7 17.6 15.7 29.7 760

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total cooling capacity
Qw: Fluid flow rate in heat exchanger Pfs: Sensible cooling capacity
Dpw: Pressure drop standard coil Tad: Discharge air dry bulb temperature
Qa: Air flow Taw: Discharge air wet bulb temperature

Note: Design and specification are subject to change without prior notice for product improvement.

HYDRONIC CASSETTE 9

PCG-12-PS TAI DB24℃-WB17.4℃ TAI DB27℃-WB19℃ TAI DB27℃-WB19.5℃ TAI DB28℃-WB21

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/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h

1296 5.25 4.08 15.2 13.3 23.7 928 7.42 5.04 16.1 13.4 44.2 1311 8.05 4.94 16.3 13.5 50.9 1423 10 5.05 17 13.8 74.4 1767

1171 4.5 3.7 14.5 13.2 18 795 6.43 4.58 15.4 13.3 34.2 1136 7 4.52 15.6 13.4 39.7 1237 8.7 4.64 16.1 13.6 58.4 1538

5

1098 3.81 3.29 13.8 13.1 13.4 673 5.32 4.06 14.4 13.2 24.3 940 5.75 3.98 14.6 13.3 27.7 1016 7.25 4.19 15 13.5 42.3 1281

1296 4.615 3.785 15.9 13.85 18.75 815.5 6.435 4.76 16.85 14.25 34.35 1137 6.805 4.64 16.75 14.4 38.45 1202.5 8.825 4.795 17.5 14.7 60.4 1559 .5

1171 4 3.44 15.3 13.75 14.5 706.5 5.59 4.31 16.2 14.15 26.65 987.5 6.005 4.25 16.2 14.3 30.7 1061 7.7 4.395 16.75 14.55 47.5 1361

6

1098 3.355 3.035 14.6 13.65 10.63 592.5 4.59 3.785 15.25 14.05 18.7 811 4.975 3.755 15.3 14.2 21.75 879 6.41 3.92 15.8 14.45 34.1 1132.5

1296 3.98 3.49 16.6 14.4 13.8 703 5.10 4.48 17.6 15.1 22.4 901 5.56 4.34 17.2 15.3 26 982 7.65 4.54 18 15.6 46.4 1352

1171 3.5 3.18 16.1 14.3 11 618 4.70 4.04 17 15 19.1 839 5.01 3.98 16.8 15.2 21.7 885 6.7 4.15 17.4 15.5 36.6 1184

7

1098 2.9 2.78 15.4 14.2 7.86 512 3.95 3.54 16.1 14.9 13.1 682 4.2 3.53 16 15.1 15.8 742 5.57 3.65 16.6 15.4 25.9 984

1296 3.49 3.19 17.15 14.75 11.2 616.5 5.175 4.075 18.3 15.25 22.65 914.5 5.395 4.02 18.05 15.5 24.7 953 7.455 4.195 18.75 15.75 44.5 1317.5

1171 3.095 2.895 16.75 14.65 9 547 4.525 3.71 17.7 15.15 17.85 799.5 4.79 3.685 17.55 15.4 20.1 846 6.5 3.835 18.15 15.65 34.8 1148.5

8

1098 2.535 2.44 16.4 14.6 6.43 447.5 3.71 3.25 16.85 15.05 12.45 656 4.01 3.275 16.75 15.3 14.6 708.5 5.42 3.4 17.35 15.55 24.9 957.5

1296 3 2.89 17.7 15.1 8.6 530 4.9 3.67 19 15.4 20.8 866 5.23 3.7 18.9 15.7 23.4 924 7.26 3.85 19.5 15.9 42.6 1283

1171 2.69 2.61 17.4 15 7 476 4.3 3.38 18.4 15.3 16.6 760 4.57 3.39 18.3 15.6 18.5 807 6.3 3.52 18.9 15.8 33 1113

9

1098 2.17 2.1 17.4 15 5 383 3.56 2.99 17.6 15.2 11.8 630 3.82 3.02 17.5 15.5 13.4 675 5.27 3.15 18.1 15.7 23.9 931

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total cooling capacity
Qw: Fluid flow rate in heat exchanger Pfs: Sensible cooling capacity
Dpw: Pressure drop standard coil Tad: Discharge air dry bulb temperature
Qa: Air flow Taw: Discharge air wet bulb temperature

Note: Design and specification are subject to change without prior notice for product improvement.

PCG-16-PS TAI DB24℃-WB17.4℃ TAI DB27℃-WB19℃ TAI DB27℃-WB19.5℃ TAI DB28℃-WB21

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/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h kW kW °C °C kPa l/h

1650 6 4.4 15.5 13.2 28.9 1060 8.4 5.5 16.5 13.4 53.3 1484 9 5.4 16.7 13.6 60.1 1591 11.5 5.59 17.3 13.7 93.8 2032

1300 5 3.89 14.8 13.1 20.9 884 6.4 4.83 15.6 13.3 37.4 1220 7.4 4.73 15.7 13.4 42.3 1308 9.3 4.89 16.3 13.6 63.5 1644

5

1100 3.8 3.24 13.7 13 12.7 671 5.32 4.03 14.3 13.1 23.4 940 5.7 3.96 14.4 13.2 26.4 1007 7.17 4.13 14.9 13.4 39.8 1267

1650 5.15 4.14 16.2 13.9 22.45 910 7.19 5.175 17.2 14.3 41.1 1271 7 .75 5.105 17.2 14.45 46.75 1370 10.15 5.26 17.85 14.6 75.7 1793.5

1300 4.3 3.645 15.55 13.8 16.25 760 5.7 4.55 16.4 14.2 29.15 1052 6.35 4.45 16.3 14.3 32.7 1122 8.265 4.625 16.9 14.5 52.05 1461

6

1100 3.37 3.04 14.65 13.65 10.4 595.5 4.65 3.805 15.25 14 18.65 821.5 4.95 3.74 15.1 14.1 20.85 874.5 6.385 3.89 15.6 14.3 32.7 1128.5

1650 4.3 3.88 16.9 14.6 16 760 5.90 4.93 17.9 15.2 29.0 1043 6.5 4.81 17.7 15.3 33.4 1149 8.8 4.93 18.4 15.5 57.6 1555

1300 3.6 3.4 16.3 14.5 11.6 636 4.80 4.31 17.2 15.1 20.9 883 5.3 4.17 16.9 15.2 23.1 936 7.23 4.36 17.5 15.4 40.6 1278

7

1100 2.94 2.84 15.6 14.3 8.1 520 3.65 3.56 16.2 14.9 13.9 703 4.2 3.52 15.8 15 15.3 742 5.6 3.65 16.3 15.2 25.6 990

1650 3.85 3.55 17.35 14.85 13.2 680.5 5.61 4.495 18.45 15.4 25.85 991.5 6.15 4.425 18.45 15.55 30.35 1087 8.45 4.55 19.15 15.75 53.75 1493.5

1300 3.155 3.025 16.95 14.8 9.15 558 4.65 3.935 17.75 15.3 18.45 821.5 5.025 3.87 17.65 15.45 21.1 888 6.915 4.015 18.3 15.65 37.5 1222

8

1100 2.545 2.475 16.6 14.7 6.1 450 3.45 3.315 16.75 15.15 12 646.5 3.97 3.26 16.6 15.25 13.85 701.5 5.4 3.395 17.15 15.45 24.05 954.5

1650 3.4 3.22 17.8 15.1 10.4 601 5.24 4.14 19 15.6 22.8 926 5.8 4.04 19.2 15.8 27.3 1025 8.1 4.17 19.9 16 49.9 1432

1300 2.71 2.65 17.6 15.1 6.7 480 4.3 3.6 18.3 15.5 16 760 4.75 3.57 18.4 15.7 19.1 840 6.6 3.67 19.1 15.9 34.4 1166

9

1100 2.15 2.11 17.6 15.1 4.1 380 3.34 3.05 17.3 15.4 10.1 590 3.74 3 17.4 15.5 12.4 661 5.2 3.14 18 15.7 22.5 919

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total cooling capacity
Qw: Fluid flow rate in heat exchanger Pfs: Sensible cooling capacity
Dpw: Pressure drop standard coil Tad: Discharge air dry bulb temperature
Qa: Air flow Taw: Discharge air wet bulb temperature

Note: Design and specification are subject to change without prior notice for product improvement.

HYDRONIC CASSETTE 10
ETHYLENE GLYCOL SOLUTIONS

Adding Ethylene Glycol to the water system so as to multiply the performance figures by the values
given in the following table.

Freezing point (℃)

0 -5 -10 -15 -20 -25

Percentage of ethylene glycol in weight

0 12% 20% 28% 35% 40%
cPf 1 0.985 0.98 0.974 0.97 0.965
cQ 1 1.02 1.04 1.075 1.11 1.14

cdp 1 1.07 1.11 1.18 1.22 1.24

cPf: correction factor cooling capacity
cQ: correction factor flow rate
cdp: correction factor pressure drop

HYDRONIC CASSETTE 11

HEATING CAPACITY TABLES

Note: Design and specification are subject to change without prior notice for product improvement.

Note: Design and specification are subject to change without prior notice for product improvement.

PCG-06-PS

TAI 18℃ TAI 20℃ TAI 22℃

TAI 24℃

Twi Two qa Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw

°C °C m3/h kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa

750 2.28 27.4 390 2.36 2.07 28.5 354 1.98 1.86 29.6 318 1.64 1.65 30.7 282 1.3

648 2.12 28 363 2.1 1.92 29.1 329 1.74 1.73 30.2 296 1.44 1.54 31.3 263 1.14

45 40

588 2 28.4 342.8 1.86 1.82 29.5 312 1.6 1.64 30.5 281 1.31 1.46 31.5 250 1.02

750 2.24 27.2 192 0.6 2.04 28.4 175 0.557 1.83 29.5 166.9 0.457 1.62 30.6 158.8 0.357

648 2.07 27.8 177 0.57 1.9 29 162 0.491 1.71 30.1 146.6 0.406 1.52 31.2 131.2 0.321

50 40

588 1.98 28.3 170 0.53 1.8 29.4 154 0.445 1.61 30.4 138 0.362 1.42 31.4 122 0.279

750 4.37 36 374.6 2.2 4.14 37 354 1.98 3.91 38.1 335 1.78 3.68 39.2 316 1.58

648 4.05 37.2 347 1.91 3.84 38.2 329 1.74 3.64 39.3 312 1.58 3.44 40.4 295 1.42

70 60

588 3.83 38 328 1.73 3.63 39 311 1.56 3.46 40.1 296.6 1.44 3.29 41.2 282.2 1.32

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total heating capacity
Qw: Fluid flow rate in heat exchanger Tad: Discharge air temperature
Dpw: Pressure drop standard coil
Qa: Air flow

PCG-08-PS

TAI 18℃ TAI 20℃ TAI 22℃ TAI 24℃

Twi Two qa Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw

°C °C m3/h kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa

846 2.45 26.9 420 2.7 2.21 28 378.9 2.23 1.99 29.2 341 1.85 1.77 30.4 303.1 1.47

700 2.22 27.8 380 2.3 2 28.8 342.9 1.9 1.8 29.9 308 1.55 1.6 31 273.1 1.2

45 40

550 1.93 28.8 330 1.76 1.75 29.8 300 1.47 1.58 30.8 270 1.23 1.41 31.8 240 0.99

846 2.4 26.7 205 0.8 2.18 27.9 186.9 0.7 1.96 29.1 168 0.6 1.74 30.3 149.1 0.5

700 2.16 27.5 185 0.6 1.96 28.6 168 0.52 1.74 30.2 149 0.42 1.52 31.8 130 0.32

50 40

550 1.89 28.6 162 0.5 1.73 29.7 148 0.414 1.55 30.7 132 0.4 1.37 31.7 116 0.386

846 4.68 34.9 401 2.5 4.43 36.1 380 2.3 4.2 37.2 360 2.04 3.97 38.3 340 1.78

700 4.22 36.5 361 2.1 4 37.6 343 1.9 3.73 39.7 319 1.65 3.46 41.8 295 1.4

70 60

550 3.7 38.7 317 1.63 3.41 41 292 1.4 3.32 40.6 284 1.33 3.23 40.2 276 1.26

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total heating capacity
Qw: Fluid flow rate in heat exchanger Tad: Discharge air temperature
Dpw: Pressure drop standard coil
Qa: Air flow

HYDRONIC CASSETTE 12

Note: Design and specification are subject to change without prior notice for product improvement.

Note: Design and specification are subject to change without prior notice for product improvement.

PCG-09-PS

TAI 18℃ TAI 20℃ TAI 22℃ TAI 24℃

Twi Two qa Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw

°C °C m3/h kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa

1098 4.22 29.8 723.4 15.3 3.86 30.8 661.7 13.1 3.47 31.7 594 10.7 3.08 32.6 526.3 8.3

924 3.78 30.9 648 12.6 3.42 31.7 586.2 10.4 3.09 32.6 530 8.7 2.76 33.5 473.8 7

45 40

858 3.56 31.4 610 11.2 3.25 32.2 557 9.54 2.95 33 505 8.1 2.65 33.8 453 6.66

1098 4.36 30.2 373.7 4.7 3.98 31.1 341 3.95 3.6 32.1 308.6 3.3 3.22 33.1 276.2 2.65

924 3.88 31.2 332.6 3.8 3.54 32.2 303 3.2 3.21 33 275 2.67 2.88 33.8 247 2.14

50 40

858 3.69 31.8 316.3 3.5 3.38 32.6 289.7 2.95 3.06 33.5 262 2.46 2.74 34.4 234.3 1.97

1098 7.61 40.7 671.3 14.3 6.67 41.5 571 13 6.27 42.4 551 11.8 6.08 43.3 522 10.6

924 7.01 42.6 602.1 11.5 5.85 43.5 546.3 10.5 5.55 44.4 537 9.53 5.82 45.3 507.7 8.56

70 60

858 6.46 43 558.6 10.2 5.57 44.3 537 9.5 5.27 44.9 528 8.5 5.61 45.5 467 7.5

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total heating capacity
Qw: Fluid flow rate in heat exchanger Tad: Discharge air temperature
Dpw: Pressure drop standard coil
Qa: Air flow

PCG-12-PS

TAI 18℃ TAI 20℃ TAI 22℃ TAI 24℃

Twi Two qa Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw

°C °C m3/h kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa

1296 4.54 27.8 778 17.4 4.13 28.9 708 14.6 3.72 30.1 637 12.1 3.31 31.3 566 9.6

1176 4.17 28.5 714.8 15 3.8 29.6 651 12.65 3.43 30.6 588 10.5 3.06 31.6 525 8.35

45 40

1098 3.68 29.6 630.8 12 3.36 30.6 576 10.1 3.03 31.5 519 8.4 2.7 32.4 462 6.7

1296 4.67 28.1 400 5.3 4.3 29.3 368.6 4.6 3.88 30.4 332 3.8 3.46 31.5 295.4 3

1176 4.3 28.8 368 4.54 3.92 29.9 336 3.8 3.57 31 306 3.24 3.22 32.1 276 2.68

50 40

1098 3.8 30 325.7 3.63 3.48 30.9 298 3.1 3.15 31.9 270 2.58 2.82 32.9 242 2.06

1296 8.07 36.8 745 16.2 7.20 38 710 14.8 6.87 39 674 13.5 6.45 40 638 12.2

1176 7.55 38.1 681 13.7 6.6 39 651 12.6 6.25 40.1 621 11.6 5.95 41.2 591 10.6

70 60

1098 6.85 40.1 604 11 5.95 41 576 10.1 5.65 42.1 548 9.3 5.68 43.2 520 8.5

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total heating capacity
Qw: Fluid flow rate in heat exchanger Tad: Discharge air temperature
Dpw: Pressure drop standard coil
Qa: Air flow

HYDRONIC CASSETTE 13

Note: Design and specification are subject to change without prior notice for product improvement.

PCG-16-PS

TAI 18℃ TAI 20℃ TAI 22℃ TAI 24℃

Twi Two qa Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw Pf Tad Qw dPw

°C °C m3/h kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa kW °C l/h kPa

1650 4.96 27 850 20.3 4.57 28.3 783 17.7 4.08 29.4 700 14.3 3.59 30.5 617 10.9

1300 4.4 28 754 16.4 4.02 29.2 689 14 3.62 30.3 620 11.6 3.22 31.4 551 9.2

45 40

1100 3.75 29.4 642.8 12.3 3.43 30.5 588 10.6 3.1 31.6 531 8.8 2.77 32.7 474 7

1650 5.12 27.3 439 6.2 4.7 28.5 402 5.3 4.24 29.7 363 4.4 3.78 30.9 324 3.5

1300 4.54 28.3 389 5 4.14 29.5 354 4.2 3.75 30.6 321 3.54 3.36 31.7 288 2.88

50 40

1100 3.86 29.7 330 3.7 3.53 30.8 302.6 3.2 3.21 31.8 275 2.7 2.89 32.8 247.4 2.2

1650 8.51 35.3 755 18.9 7.90 36.5 677 17.5 7.33 37.7 620 15.9 7.07 38.9 601 14.3

1300 7.42 37.2 681 15.2 6.95 38.4 627 13.9 6.81 39.4 592 12.6 6.20 40.4 567 11.3

70 60

1100 6.50 39.6 617 11.5 5.96 40.8 582 10.3 6.25 41.7 557 9.52 5.82 42.6 532 8.74

TAI: Air in temperature
Twi: Fluid in temperature Pf: Total heating capacity
Qw: Fluid flow rate in heat exchanger Tad: Discharge air temperature
Dpw: Pressure drop standard coil
Qa: Air flow

HYDRONIC CASSETTE 14

THE INSTALLATION MANUAL

HOT & CHILLED WATER SYSTEM AIR CONDITIONERS

First check the contents of the package.

FACTORY SUPPLIED ACCESSORIES

Check to ensure all factory supplied accessories are supplied with the unit.

The appliance should be installed in accordance with national wiring regulation.

SAFETY CONSIDERATIONS

1. When working on air conditioning equipment, observe precautions in this manual, and on
plates and tables attached to the unit. Follow all safety codes and other safety
precautions that may apply.

2. Installing and servicing air conditioning equipment should be done by trained and
qualified service personnel only. Untrained personnel can perform only basic
maintenance functions such as cleaning coils, filters and replacing filters.

3. Ensure that the electrical supply and frequency are adequate for the operating current
required for this specific installation.

WARNING - Before any service or maintenance operations turn off the main power switch.

1. The manufacturer denies any responsibility and warranty shall be void if these installation

instructions are not observed.

2. Never switch off the power main supply when unit is operating in the cooling cycle. To

switch off the fan coil unit use only the ON-OFF button.

3. This avoids over-flow in the drain pan, by allowing the pump to drain any condensate

water due to regulating valve losses when chiller is working.

OPERATING LIMITS

1. Power supply

Volt Phase Hz

230 1 50

2. Water circuit

 Minimum entering water temperature: +2 °C
 Maximum entering water temperature: +80 °C
 Water side maximum pressure: 1400 kPa (142 m.w.c)

FACTORY SUPPLIED ACCESSORIES AMOUNT

LCD Remote control 1
Mounting Bracket (Already on the unit) 1
Installation manual 1
Batteries 2
External drain pan 1

HYDRONIC CASSETTE 15
BEFORE INSTALLATION

The installation site must be established by the system designer or other qualified professional, taking
account of the technical requisites and current standards and legislation.

PCG fan coils must be installed by an authorized company only.
PCG fan coils are designed for installation in a false ceiling, for intake of fresh air from outside and for

deviation of a small part of the treated air for discharge in a neighboring room.
They must be installed in such a way as to enable treated air to circulate throughout the room and in
respect of the minimum distances required for technical maintenance operations.

1. It is advisable to place the unit close to the installation site without removing it from the packaging.

2. Do not put heavy tools or weights on the packaging.

3. Upon receipt, the unit and the packaging must be checked for damage sustained in transit and if

necessary, a damage claim must be filed with the shipping company.

4. Check immediately for installation accessories inside the packaging.

5. Do not lift unit by the condensate drain discharge pipe or by the water connections; lift it by the

four corners.(Fig.1)

6. Check and note the unit serial number.

SELECT LOCATION

1. Do not install the unit in rooms where flammable gas or alkaline acid substances are present.

Aluminum/copper coils and/or internal plastic components can be damaged irreparably.

2. Do not install in workshops or kitchens; oil vapors drawn in by treated air might deposit on the

coils and alter their performance or damage the internal plastic parts of the unit.

3. Installation of the unit will be facilitated by using a stacker and inserting a plywood sheet between

the unit and the elevated stacker.(Fig.2)

4. It is recommended to position the unit as centrally as possible in the room to ensure optimum air

distribution. (Fig.3)
Generally the best louver position is the one which allows air diffusion along the ceiling.
Alternatively intermediate positions can be selected.

5. Check that it is possible to remove panels from ceiling in the selected position, to allow enough

clearance for maintenance and servicing operations.

Fig.2

Fig.1

Fig.3

HYDRONIC CASSETTE 16
INSTALLATION LOCATION

INSTALL THE UNIT IN A POSITION:

1. Having sufficient strength to carry the weight of the unit.

2. Where the inlet and outlet grilles are not obstructed and the conditioned air is able to blow all over

the room.

3. From where condensate can be easily run to drain.

4. Check the distance between the upper slab and false ceiling to ensure the unit will suit the

distance. See Fig.4

A

B

Fig.5

5. Ensure there is sufficient space around the unit to service it. See Fig.5

Model A (mm.) B (mm.)

PCG-09 250 10 or more

PCG-06/08/12/16 290 10 or more

Fig.4

HYDRONIC CASSETTE 17
INSTALLATION METHOD

CASSETTE UNIT

Using the installation template open ceiling panels and install the suspension bolts as in Fig.6 below

600 x 600: Dimensions for opening

632 x 280: Suspension Bolts

600 x 1160: Dimensions for opening

750 x 632: Suspension Bolts

FIG. 6

MODELS PCG-06/08

MODELS PCG-09/12/16

HYDRONIC CASSETTE 18
OPENING DIMENSIONS AND POSITIONS FOR SUSPENSION BOLTS

1. Mark position of suspension rods, water lines and condensate drain pipe, power supply cables

and remote control cable.

2. Supporting rods can be fixed, depending on the type of ceiling, as shown in Fig. 7 and Fig.8.

3. Fit suspension brackets supplied with the unit to the threaded rods (Fig.9).

4. Do not tighten nuts and counter nuts; this operation has to be done only after final leveling of the

unit, when all the connections have been completed.

Fig.7 Fig.8

Fig.9

5. Ensure the ceiling is horizontally level, otherwise condensate water cannot drain.

6. The casing is fixed to the slab with 4 drop rods. The rods should have two nuts and washers to

lock the unit in position. The Cassette brackets will then hook over the washers.

7. When lifting the Cassette into position care should be taken not to lift the unit by the drip tray,

which could be damaged.

8. Lift unit (without the air panel) with care by its four corners only. Do not lift unit by the condensate

drain discharge pipe or by the piping connections.

9. Incline unit (Fig.10, Fig.11, Fig.13, Fig.14) and insert it into the false ceiling. Insert the rods into

the bracket slot. With minimum height (see table) false ceilings, it might be necessary to remove
some T brackets of the false ceiling temporarily.

10. Using a level guide, line up the unit with a spirit level, and keep dimension between the body and

the lower part of the false ceiling (Fig.12 Fig.15).

11. Line up the unit to the supporting bars of the false ceiling tightening the nuts and counter nuts of

the threaded rods.

HYDRONIC CASSETTE 19

12. After connection of the condensate drain piping and piping connections, check again that the unit

is level.

MODEL PCG-06/08

A (mm.) 3

Fig. 10

Fig. 11

Fig. 12

HYDRONIC CASSETTE 20

MODEL PCG-09/12/16

A (mm.) 3

13. The spaces between the unit and ceiling can now be adjusted. Use the drop rods to make the

adjustment.

14. Check to ensure the unit is level. The drain will then automatically be lower than the rest of the

drip tray.

15. Tighten the nuts on the suspended rods.

Fig. 13

Fig. 14

Fig. 15

HYDRONIC CASSETTE 21
DRAIN PIPE WORK

INDOOR UNIT

1. The unit is fitted with a condensate pump with a 500 mm. lift.

2. The unit is provided with 22 mm. bore flexible hose 300 mm. long.

3. The flexible hose should be fitted into a 22 mm O/S Φ. polyvinyl tube and sealed.

4. The drain must be installed with a downward slope.

5. On completion the drain line should be insulated.

WATER CONNECTIONS

The hydraulic connections of the PCG unit is 3/4” water connection with gaskets it is advisable to
tighten the gaskets with a spanner.

For piping dimensional drawing please refer to “DIMENSIONAL DRAWINGS”

VALVE CONFIGURATION

There are two types of valve configuration for PCG cassette: a) Internal integrated valve and b)
external valve –

a) Pre-installed 2-way and 3-way integrated valves (Fig. 17)

(please refer to “VALVE INFORMATION”)

Integrated valve information

Model

Type inch

PCG-06/08 2-way & 3-way 1/2”

PCG-09/12/16 2-way & 3-way 3/4”

Fig. 16

Fig. 17

HYDRONIC CASSETTE 22

b) External valves

i. Replace integrated valve with plug-and-play replacement connector

Procedures:

1) Before connecting water supply to the PCG cassette. First remove the integrated valve using
spanner

2) Replace with plug-and-play connector (Fig. 18)

3) Connect the external valve directly onto the cassette.

ii. Disable integrated valve functionality using valve cap

Procedures:

1) Remove integrated valve actuator by pressing on both sides. (Fig. 19)

2) Place the valve cap onto the valve body. (Fig. 20)

3) Connect the external valve directly onto the cassette.

Fig. 18

Fig. 19 Fig. 20

HYDRONIC CASSETTE 23
EXTERNAL DRAIN PAN

Procedures:

 Align the two (2) screw holes in the fixing plate to the two (2) holes in the external drain pan.

(Fig. 21)

 Make sure the drain pan is horizontal.
 Tighten the two screws and making sure the external drain pan is installed flush with the fixing

plate. (Fig. 22)

When the installation is completed, it is necessary to wrap connecting pipe with insulation to prevent
leakage to ceiling tile.

FRESH AIR RENEWAL CONNECTION

The fresh air system for PCG cassette allows up to 15% of unit airflow as fresh air intake (per
connection). Maximum 2 fresh air connections per unit.

1. The corners of the cassette allow separate ductwork to be installed for outside air intake (Fig.23)

2. Cut and remove anti-condensate insulating material.

3. Open the mounting plate (Fig. 24)

3. Install the flanges to casing and fix it with 2 screws. Flange is rectangular duct with dimension
110 x 55mm.

Fig. 21

Fig. 22

Fig. 23

HYDRONIC CASSETTE 24

BRANCH DUCT CONNECTION

 The side opening allows separate ductwork to be installed for branch ducting. (Fig. 26)
 Cut and remove anti-condensate insulating material.
 Install your flanges and conduits to casing. Conduit can be flexible polyester with spring core or

corrugated aluminium externally coated (dia.4 in.) with anti-condensate material (fiberglass 12-25
mm thickness).

Order flanges (spigots) and blanking plates as accessories separately.

BRANCH DUCT DIMENSION

Fig. 24

Fig. 25

Fig. 26

HYDRONIC CASSETTE 25

BRANCH DUCT INSTALLATION

St e p 1 St ep 2

St e p 3

St ep 4

STI CK ER

Tapping Screw

Dia 3 mm.x12 mm.l.

1. Look for the yellow sticker on the casing
for location of branch duct or fresh air
intake connections.

2. The sticker is at the center of a knock out
hole underneath the casing insulation. Use
a cutter and follow along the pre-cut
circular marking as shown and trim off the
insulation.

3. Knock out the pre-cut hole.

4. Connect the flange on to the opening with
Φ3 mm. x 12 mm. tapping screws.

HYDRONIC CASSETTE 26
INTERCONNECTING WIRING

We recommend that screened cable be used in electrically noisy areas.

1. Always separate low voltage (5VDC) signal wires from power line (230 VAC) to avoid electro­magnetic disturbance of control system.

2. Do not install the unit where electromagnetic waves are directly radiated at the infra red receiver
on the unit.

3. Install the unit and components as far away as is practical (at least 5 meters) from the
electromagnetic wave source.

4. Where electromagnetic waves exist use shielded sensor cable.

5. Install a noise filter if any harmful noise exists in the power supply.

Important note: Please ensure the cable of the main powers supply will be > 500mm long from the

control box terminal block. This is to ensure the control box can be slide out easily during
maintenance activities.

Wiring procedures:

1) Open the terminal block cover by removing 4 screws

2) Connect L & N cable to the terminal according to wiring diagram on page 63

3) Connect room temperature sensor, coil temperature sensors to the control box

4) Connect stepping motor

5) Connect receiver display

6) Connect wall pad (optional)

7) Slide in the control box to the unit casing and fixed with 2 screws.

Fig.27

HYDRONIC CASSETTE 27
CONTORL BOX CONFIGURAITON

a) Plug-and-play control box with full functionality PCB (please refer to wiring diagram on
page 60)

The PCB is a universal type with multiple configurations selectable using dipswitches. Please
provide dip-switch setting according to below.

There are 2 DIP Switch sets on the PCB, one with 8 Dip-switches which named as DIP-Switch A
and one with 6 Dip-switches which named as DIP-Switch B

For master-slave connection setting, please refer to Appendix I.

DIP Switch A SW1-SW6 is used for master slave address setting.

DIP switch address setting: 1 for ON, 0 for OFF.

SW7 SW8 Model setting
0 0 Cool-Heat
0 1 Cool-Heat + booster heater
1 0 Cooling only
1 1 Cool + primary heater

DIP Switch B is used for model configuration as follow:-

DIP switch setting: 1 for ON, 0 for OFF.

SW1 PR-O contact setting
0 Economy contact
1 Window contact

SW2 System setting
0 2 pipes system
1 4 pipes system

SW3 Preheat setting
0 28C
1 36C

SW4 MTV setting [applicable to 2 pipes system only]
0 Without motorized valve
1 With motorized valve

SW5 Reserved

SW6 RS485 termination setting
0 Other than below
1 Last unit on RS485 communication bus

HYDRONIC CASSETTE 28
MOUNTING FRONT PANEL ASSEMBLY

1. Remove return grille from front panel.

2. Move the front panel to casing.

3. Tighten 4 screws as shown in Fig 28,29

FILTER REMOVAL

1. Unlock the two fasteners on the front panel.

2. Open the grille downward with care.

3. Pull the filter out along the slot.

4. Clean the filter and reassemble.

PCG-06/08

PCG-09/12/16

Fig.28 Fig.29

HYDRONIC CASSETTE 29

PRELIMINARY CHECKS BEFORE START-UP

1. The unit should not be started up until the system piping has been cleaned and all the air has
been purged.

2. Check condensate drain pipe slope.

3. After you have connected the main power supply to the cassette unit, it is necessary to check the
good function of the condensate water pump which is installed inside.
Due to transport vibration, it might be possible that the float switch is hung up and the pump
might not work in the correct way. For this reason, you have to do the following, to ensure good
functioning of the unit:

4. Install the cassette unit in an absolute horizontal position.

5. Fill the internal drain pan (manually) with enough water to ensure the drain pump is working.

6. You can fill the drain pan by pouring water through the external drain pan.
If everything is correct, the water will be pushed out into the pipe work you have installed. If the
valve does not open, you have to make sure the float switch is not hung up inside the unit and
you will have to loosen it by hand.

7. Make sure that air filter is clean and properly installed.

8. Ensure that voltage and current values correspond with the unit nameplate values; check
electrical connections.

9. Verify that air outlets are not closed.

MAINTENANCE

1. Before performing any service or maintenance operations, turn off the main power switch.

2. The air filter is made of acrylic fiber and is washable in water. To remove filter simply open the
intake grille by releasing the two catches. See Fig.19 and the section filter removal.

3. Check the filter periodically and before the operating season; clean or replace as necessary.

PROLONGED UNIT SHUT-DOWN

1. Prior to restarting the unit:

2. Clean or replace the air filters.

3. Check and remove any obstruction from the external drain pan and the internal drain pan.

EXTRA MAINTENANCE

1. The electrical panel is easily accessible by removing the cover panel.

2. The inspection or replacement of internal components such as; heat exchanger coil, condensate

3. Drain pump, float switch, involves the removal of the condensate drain pan. See Fig.20-25.

4. During the removal of the condensate drain pan protect the floor under the unit with a plastic
sheet from condensate water that could be spilled.

5. Remove fixing screws of the drain pan fixture and remove condensate drain pan with care.

The appliance is intended to be maintained by qualified service personnel and located at a height of
not less than 2.5m.

HYDRONIC CASSETTE 30

HOW TO ACCESS AIR VENT AND WATER PURGE

2

nd

STEP: release the air vent / water purge

by loosen the screws.

HOW TO CONNECT NON-DEFAULT FAN SPEED

1

st

STEP: remove the grill. 2

nd

STEP: remove the finger guard by removing 4 screws.

3

rd

STEP: remove the finger guard and venturi 4th STEP: Fan speed terminal is located in the area

inside the red rectangle.

1

s

t

STEP: remove the grill, air vent and water purge

are located at the pointed area.

HYDRONIC CASSETTE 31

5th STEP: change the fan speed wiring according to below wiring diagram

HYDRONIC CASSETTE 32

HOW TO FIX THE MOTOR AND FAN BLOWER

1

st

STEP: remove the grill. 2

nd

STEP: remove the finger guard by removing 4

screws.

3

rd

STEP: remove the finger guard and Venturi 4

th

STEP: remove fan blower using a spanner

5

th

STEP: remove the motor by removing 4 bolts and disconnect fan motor wire connector.

HYDRONIC CASSETTE 33

HOW TO FIX CONDENSATE PUMP AND INTERNAL VALVE

1

st

STEP: remove the grill. 2nd STEP: remove the front panel by removing 4

screws.

3

r

d

STEP: remove the front panel by disconnecting

stepping motor and IR receiver.

4th STEP: removing the drain pan fixture by

removing 8 screws.

5th STEP: remove the drain pan fixture and

internal drain pan

6th STEP: remove the drain pump or valve

HYDRONIC CASSETTE 34

HOW TO FIX CONTROL BOX

1

st

STEP: remove the grill. 2

nd

STEP: remove the front panel by removing 4

screws.

3

r

d

STEP: remove the front panel by disconnecting

stepping motor and IR receiver.

4th STEP: remove 2 screws on the control box.

5

th

STEP: sliding out the control box.

6th STEP: Remove the terminal cover by removing 4

screws and unplug the wiring on the terminal.
And replace with a new control box

HYDRONIC CASSETTE 35

HOW TO INSTALL ELECTRIC HEATER

1

st

STEP: remove the grill. 2nd STEP: remove the front panel by removing 4 screws.

3

r

d

STEP: remove the front panel by

disconnecting stepping motor
and IR receiver.

4th STEP: remove the drain pan fixture by removing 8

screws.

5th STEP: remove internal drain pan fixture and

internal drain pan

6th STEP: slide in the insulated ring of the electric

heater to the electric heater mounting
shown above

HYDRONIC CASSETTE 36

7th STEP: slide in the rest insulated rings of the

electric heater to the electric heater
mounting shown above

8th STEP: Plug in the electric heater wiring to the

connector shown above.

HYDRONIC CASSETTE 37

EXPLODED VIEW DRAWING

PCG-06/08-PS

01---casing 08-05---main PCB
02---3-way 4-ports valve (optional) G3/4 08-05-01---chilled water coil temperature sensor
03---mounting brackets 08-05-02---hot water coil temperature sensor
04---fresh air flange (optional) 08-05-03---room temperature sensor
05---Condensate water pump 09---motor with capacitor
05-01---pump body 10---electrical heater (optional)
05-02---float switch 11---fan blower
05-03---flexible hose 1 12---drain pan with 3mm insulation
05-04---non-return valve 13---drain pan fixture
05-05--- flexible hose 2 14---finger guard
05-06---drainage head 15---Venturi
05-07---pump fixture 16---returned air grill
06--- coil 17---filter
07---coil and EH’s fixture 18---front panel
08---control system 18-01---stepping motor (2-corotation)
08-01---back of control box 18-02---stepping motor (2-reversion)
08-02---front of control box 18-03---IR receiver
08-03---cover of control box 19---external drain pan
08-04---terminal block 20--- remote handset and wired wall pad (optional)

HYDRONIC CASSETTE 38
PCG-09/12/16-PS

01---casing 08-05---main PCB
02---3-way 4-ports valve (optional) G3/4 08-05-01---chilled water coil temperature sensor
03---mounting brackets 08-05-02---hot water coil temperature sensor
04---fresh air flange (optional) 08-05-03---room temperature sensor
05---Condensate water pump 09---motor with capacitor
05-01---pump body 10---electrical heater (optional)
05-02---float switch 11---fan blower
05-03---flexible hose 1 12---drain pan with 3mm insulation
05-04---non-return valve 13---drain pan fixture
05-05--- flexible hose 2 14---finger guard
05-06---drainage head 15---Venturi
05-07---pump fixture 16---returned air grill
06--- coil 17---filter
07---coil and EH’s fixture 18---front panel
08---control system 18-01---stepping motor (2-corotation)
08-01---back of control box 18-02---stepping motor (2-reversion)
08-02---front of control box 18-03---IR receiver
08-03---cover of control box 19---external drain pan
08-04---terminal block 20--- remote handset and wired wall pad (optional)

HYDRONIC CASSETTE 39

DIMENSIONAL DRAWINGS

PCG-06-08-PS

HYDRONIC CASSETTE 40

PCG-09-PS

HYDRONIC CASSETTE 41

PCG-12/16-PS

HYDRONIC CASSETTE 42

VALVE INFORMATION

HYDRONIC CASSETTE 43

HYDRONIC CASSETTE 44

REMOTE CONTROL HANDSET

WIRELESS LCD HANDSET DISPLAY

HYDRONIC CASSETTE 45

***When unit with handset is master, settings are automatically sent to slaves;
***Auto Cool-Heat operation will be applicable in 4-pipe system only.
***Swing is not applicable to PCG models.

HYDRONIC CASSETTE 46

***Wall pad will recognize the main board model automatically whether it is 2 pipes or 4 pipes. Auto Cool-Heat operation will be applicable
in 4 pipe system only.
***When the wall pad is connected to the main board, air sensor inside the wall pad will be automatically set as primary source and the
return air sensor from the unit will be disabled.

HYDRONIC CASSETTE 47

WALL PAD OPERATION

1) Clock display and setting

System has an accurate internal real time clock used for time indication and timer ON/OFF function.

Real time clock display area indicates internal time clock which can be set by

TIME

or

TIME

button.

2) Day display and setting

The wall pad has day display function which is used for day indication and timer ON/OFF function.

Day display icon indicates current day. Press

D

A

Y

button to set day.

3) Timer ON/OFF setting

If master unit is in global control mode and on/off timer setting is reached, master unit will command
the whole network to be on or off. Otherwise timer on/off is effective to the local unit only. The system

supports 7 days on/off timer setting.

a) Press

TIMER

button once, and ON symbol blinking indicates on timer programming mode,

day display area indicates the day for setting timer on. If on timer for this day is null, timer

display area shows

, otherwise the on timer setting will be shown. Press

TIME

or

TIME

button to change the on timer setting. Press

CANCEL

key to cancel the current on timer selected

and the timer display area will show

. Press

D

A

Y

button to change the day the on

timer is to be programmed.

b) Press

TIMER

button again, and

OFF

symbol blinking indicates off timer programming

mode. The setting method is the same as on timer setting above.

c) Press

TIMER

button again, to exit timer on/off setting function.

d) Should there be any on or off timer being programmed,

will light up. Should there be any

unexecuted on or off timer for the current day, its corresponding

ON

or

OFF

icon will light up.

e) Hold down

CANCEL

button for 3 seconds to cancel all timer settings.

Timer set by master unit is as follows:-

1. Press

NET

button to enter into networking control mode. Unit area blinking indicates the

slave unit under control. Press

TIME

or

TIME

to select the desired slave unit. Units that are off

will be skipped automatically.

2. Press

TIMER

button once to enter into on timer programming mode. Press

D

A

Y

button to
select the required day of the week. Master unit will then retrieve the setting from the
selected slave unit and timer display area will show “rEAd”. The on timer setting will be

shown upon reading the data successfully. Press

TIME

or

TIME

button to change the on timer

setting.

HYDRONIC CASSETTE 48

3. Press

TIMER

button again to enter into off timer programming mode. Press

D

A

Y

button to
select the required day of the week. Master unit will then retrieve the setting from the
selected slave unit and timer display area will show “rEAd”. The off timer setting will be

shown upon reading the data successfully. Press

TIME

or

TIME

button to change the off timer

setting.

4. Upon completion of changing timer settings for the selected day, press

TIMER

button again
to exit timer programming mode. The settings will then upload to the selected slave unit.
The next day of the week settings can be done only upon completion of sending data to the
slave units. (Repeat steps 1~4 if setting is required for the next day of the week).

5. In Global control mode:

 Pressing Master

CANCEL

button for 3 seconds will cancel all timer settings in all slave

units.

 Timer settings will be broadcast to all slave units.

Clock synchronization by master unit is as follows:

1. Press

TIME

and

TIME

buttons for 3 seconds to activate clock synchronization to all slave

units. Master wall pad will respond with a beeping sound.

4) Key lock

In order to prevent unauthorized access to the system setting, a key lock function is provided to
prevent mischief. Hold down

and for 3 seconds to activate key lock, symbol lights up.

Repeat the same to exit key lock. Only

button is applicable in key lock mode.

5) Swing

Press

S

W

I

N

G

to activate or deactivate swing function.

6) Sleep

Press

SLEEP

button to activate or deactivate sleep setting. Sleep is valid in cool or heat modes only.

7) Temperature setting

Press

or to enter into temperature setting mode, temperature display area blinks indicating

the current set temperature. Press the above buttons to adjust the set temperature.

8) Mode setting

Press

MODE

button to change the operation mode.

9) Fan speed setting

Press

FAN

button to change the fan speed. Only low speed is available for dehumidification mode.

10) On/Off control

Press

to start or stop the air conditioner.

HYDRONIC CASSETTE 49

11) Networking Master - Slave control (only master unit wall pad can control other units on the
network)

Press

NET

button to enter into networking control mode. Unit area blinking indicates the slave unit

under control. Press

TIME

or

TIME

to select the desired slave unit; Units that are off will be bypassed
automatically. Parameters that can be controlled are on/off, timer weekly program, set temperature,
mode, fan speed, swing and sleep. Parameter operation methods are the same as above. Press

NET

button again to exit networking control mode.

Hold down

S

W

I

N

G

and

FRESH

buttons for 3 seconds to enter into global control mode, lights up.
Repeat the same to exit global control mode. In global control mode, the settings of the master unit
will be broadcast to all the slave units.

12) Unit operation parameters browsing

Hold down

CANCEL

and

FAN

buttons for 3 seconds to enter into operation parameters browsing

mode. Unit display area shows the slave unit under browsing. Slave unit selection method is the

same as in networking control above. Press

HUMIDIFY

or

HUMIDIFY

to browse various

parameters as follow:

Wall pad display temperature area Wall pad display time area
C0 Return air temperature displayed
C1 Indoor coil temperature displayed
C2 DIP switch setting displayed
C3 Indoor coil 2 temperature

Press

CANCEL

button to exit.

13) Error indication

When faulty slave unit is detected, Master unit display area shows the faulty unit address, time area
shows the error code and wall pad backlight changes to red color. Should there be multiple units
having problems, addresses and error codes will be shown one after another.

Error code definition:

Error Error code
Electrical heater faulty E1
Indoor coil sensor 2 faulty E2
Return air sensor faulty E3
Indoor coil sensor 1 faulty E4
Indoor coil low temperature protection E5
Indoor coil over heat protection E6
Water pump faulty E7
Local communication error E8

For system without master-slave settings, wall pad will indicate unit error codes as above.

PARAMETER

PARAMETER

HYDRONIC CASSETTE 50

CONTROL SPECIFICATIONS

HOT AND CHILLED WATER CASSETTE

WITH MASTER-SLAVE CONTROL

1. ABBREVIATIONS AND DEFINITION OF INPUT & OUTPUT PORT S

Ts = Setting temperature
Tr = Room air temperature
Ti1 = Indoor coil temperature, ID1
Ti2 = Indoor coil temperature, ID2
MTV1 = Cool Motorized valve
MTV2 = Heat Motorized valve
AUX1 = Hot water free contact
AUX2 = Cold water free contact

I/O

Code

2-Pipe 4-Pipe

Room Sensor CN8 Return air Return air

Chilled water Sensor CN7 Indoor coil Chilled water coil

Analogue Input

Hot water Sensor CN6 Reserved Hot water coil

IR receiver CN9 Used Used

Input

Wired wall pad CN5 Used Used

Occupancy contact PR-O

DIP-SWITCH IS ON. (Window contact)

The contact is normally open. If the contact has
been closed for 10 minutes, the unit will go to stand­by mode (all output signals will be disabled). When
the contact is open again, the unit will resume
running normally.

DIP-SWITCH IS OFF. (Economy contact)

Cooling operation will only be activated when Tr - Ts
>= 4 ºC. If Tr < Ts, cool operation will be terminated.
Heating operation will only be activated when Tr –
Ts <= -4 ºC. If Tr > Ts, heating operation will be
terminated.

Float switch Float Voltage-free (NC)

Digital input

Electrical heater safety
switch

EH

Voltage-free (NC). The contact is closed before the
EH is turned on.

Phase L

Power supply to the PCB and all the loads
connected to the voltage outputs. Max length: 5 m.

Neutral N

Power supply to the PCB and all the loads
connected to the voltage outputs. Max length: 5 m.

Power input

Earth GND

Power supply to the PCB and all the loads
connected to the voltage outputs. Max length: 5 m.

HYDRONIC CASSETTE 51

High fan speed HF Max length: 5 m. Voltage output (L)

Medium fan speed MF Max length: 5 m. Voltage output (L)

Low fan speed LF Max length: 5 m. Voltage output (L)

Valve1 MTV1

Water valve
Voltage output (L)

Chilled water valve
Voltage output (L)

Valve2 MTV2 Reserved

Hot water valve
Voltage output (L)

Water pump WP Voltage output (L)

Voltage output

Voltage of electrical heater
(Live)

L-EH Voltage output (L), maximum 30A

Stepping motor CN1-4

Cold water free contact. AUX2

Voltage free contact. To ensure the sensitivity of the
connection, please make sure Max wiring length <
30 m.

Hot water free contact. AUX1

Voltage free contact. To ensure the sensitivity of the
connection, please make sure Max wiring length <
30 m.

In Modbus signal CN10

Output

Out Modbus signal CN11

Terminals for local network serial connection

2. CONTROL SYSTEM OPERATION
4-PIPES SYSTEM

System always with Motorized Valve

COOL MODE

1. MTV2, AUX1 and heater always off.

2. If Tr >= Ts+1ºC (or +4 ºC if economy contact is activated), cool operation is activated, MTV1 and
AUX2 are turned on. Indoor fan runs at set speed.

3. If Tr < Ts, cool operation is terminated, MTV1 and AUX2 are turned off. Indoor fan runs at set speed.

4. The range of Ts is 16-30 ºC

5. Indoor fan speed can be adjusted for low, medium, high and auto.

6. When turned on, MTV1 requires 30 seconds before it is fully open.

7. When turned off, MTV1 requires 120 seconds before it is fully closed.

8. When the unit is turned off, indoor fan will delay for 5 seconds before it is turned off.

LOW TEMPERATURE PROTECTION OF INDOOR COIL

1. If Ti1 ≦ 2 ºC for 2 minutes, MTV1 and AUX2 are turned off. If indoor fan is set for low speed, it will
run at medium speed. If it is set at medium or high speed, it will keep running at the same speed.

2. If Ti1 ≧ 5ºC for 2 minutes, MTV1 and AUX2 are turned on. Indoor fun runs at set speed.

FAN MODE

1. Indoor fan runs at the set speed while heater, MTV1, MTV2, AUX1 and AUX2 are turned off.

2. Indoor fan speed can be adjusted for low, medium and high.

HYDRONIC CASSETTE 52

HEAT MODE
i. HEAT MODE--- WITHOUT ELECTRICAL HEATER

1. MTV1, AUX2 and heater always off.

2. If Tr <= Ts﹣1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, MTV2 and

AUX1 are turned on. Indoor fan runs at the set speed.

3. If Tr >Ts, heat operation is terminated, MTV2 and AUX1 are turned off. Indoor fan repeatedly runs at

low fan speed for 30 seconds and stops for 3 minutes.

4. The range of Ts is 16~30 ºC。

5. Indoor fan speed can be adjusted for low, medium, high and auto.

6. MTV2 will delay for 30 seconds before it is turned on.

7. MTV2 will delay for 120 seconds before it is turned off.

ii. HEAT MODE---WITH ELECTRICAL HEATER AS BOOSTER

1. MTV1 and AUX2 are always off.

2. If Tr <= Ts﹣1 ºC (or -4 ºC if economy contact is activated), heat operation is activated, MTV2 and

AUX1 are turned on. Indoor fan runs at the set speed.

3. If Tr >Ts, heat operation is terminated, MTV2 and AUX1 are turned off. Indoor fan repeatedly runs at

low fan speed for 30 seconds and stops for 3 minutes.

4. If Ti1<40 ºC, the electrical heater is turned on. If 40<= Ti1<45 ºC, the electrical heater is kept original

state. If Ti1>=45 ºC, the electrical heater is turned off.

5. The range of Ts is 16~30 ºC

6. Indoor fan speed can be adjusted for low, medium, high and auto.

7. MTV2 will delay for 30 seconds before it is turned on.

8. MTV2 will delay for 120 seconds before it is turned off.

iii. PRE-HEAT---WITHOUT ELECTRICAL HEATER

1. If Ti1<36 ºC [or 28C depends on DIP setting], when MTV2 and AUX1 are on, indoor fan remains off.

2. If Ti1>=38 ºC [or30C depends on DIP setting], when MTV2 and AUX1 are on, indoor fan runs at set

speed.

3. If indoor coil temperature sensor is damaged, pre-heat time is set for 2 minutes and indoor fan runs

at set speed.

iv. PRE-HEAT---WITH ELECTRICAL HEATER

1. MTV2 and AUX2 turn on.

2. Indoor fan will turn on after the electrical heater is turned on for 10 seconds.

v. POST-HEAT---WITHOUT ELECTRICAL HEATER

1. If Ti2≧38ºC, when MTV2 and AUX 1 are off, indoor fan continues to run at set speed.

2. If 36 C <= Ti2< =38 C, when MTV2 and AUX1 are off. Indoor fan keeps original state.

3. If Ti2<36ºC, when MTV2 and AUX1 are off. Indoor fan runs 30 seconds and stop 3 minutes

repeatedly.

4. If indoor coil temperature coil is damaged, post-heat time is set for 3 minutes with indoor fan running

at set speed.

vi. POST-HEAT---WITH ELECTRICAL HEATER

1. Indoor fan will turn off after the unit off for 20 seconds.

vii. OVER HEAT PROTECTION OF INDOOR COIL

1. If Ti2 >= 75 ºC, MTV2 and AUX1 are turned off, indoor fan remains on and runs at high speed.

2. If Ti2<70 ºC, MTV2 and AUX1 are turned on, indoor fan remains on and runs at set speed.

3. If indoor coil temperature sensor is damaged, the protection mode will become obsolete and the unit

will work as the Pre-heat and Post-heat set times.

HYDRONIC CASSETTE 53

DEHUMIDIFICATION MODE

1. MTV2, AUX1 and heater always off.

2. If Tr >= 25 ºC, MTV1 and AUX2 will be ON for 3 minutes, and OFF for 4 minutes.

3. If 16 ºC < =Tr < 25 ºC, MTV1 and AUX2 will be ON for 3 minutes, and OFF for 6 minutes.

4. If Tr <16 ºC, MTV1 and AUX2 will be turned off for 4 minutes.

At the end of the above dehumidification cycle, system will decide the next dehumidification control option.
Indoor fan will run at low speed throughout the dehumidification process.

AUTOMODE

1. If current running mode is auto cool mode, it will change over to auto heat mode upon satisfy all the

conditions below:

 Ts-Tr≧1.0°C(or -4 ºC if economy contact is activated)
 MTV1 has stop≧10 min.

2. If current running mode is auto heat mode, it will change over to auto cool mode upon satisfy all the

conditions below:

 Tr-Ts≧1.0°C(or +4 ºC if economy contact is activated)
 MTV2 has stop≧10 min.

Note: Auto cool or auto heat operation are the same as cool or heat mode respectively.

SLEEP MODE

a) Sleep mode can only be set in cool or heat modes only.
b) In cool mode, after sleep mode is set, the indoor fan will run at low speed and Ts will increase 2 ºC
during 2 hours.
c) In heat mode, after sleep mode is set, the indoor fan will run at set speed and Ts will decrease 2 ºC
during 2 hours.
d) Changing of operation mode will cancel sleep mode.

The cool mode sleep profile is:

The heat mode sleep profile is:

Hour

Sleep on

0.5

1.0

2.0

Sleep off

Set temperature

Ts

Ts+0.5

Ts+1.0

Ts+2.0

Hour

Sleep on

0.5

1.0

2.0

Sleep off

Set temperature

Ts

Ts-2.0

Ts-1.0

Ts-0.5

HYDRONIC CASSETTE 54

AUTO FAN SPEED

In cool mode, the fan speed cannot change until it has run at this speed for more then 30 seconds. Fan
speed is regulated according to the profile below.

In heat mode, the fan speed cannot change until it has run at this speed for more then 30 seconds.

SWING / LOUVER

For remote handset
Whenever indoor fan is running, louver can swing or stop at the desired position.
Louver angle: 0~100 º, opens clockwise with largest angle at 100 º.
Swing angle: 35~100 º, opens clockwise to 68º. Below are the 4 fixed positions which can be set from
wireless LCD handset.

Position Angle

1 35 º
2 57 º
3 83 º
4 100 º

For wired wall pad
Louver angle: 0~100 º, opens clockwise, and with biggest angle at 100 º.
Swing angle: 35~100 º, opens clockwise to 68º. User may stop louver at any desired poison between
35~100 º.

High

Tr

Lo

w

Lo

w

Medium

Ts

Ts-1C

Ts-2C

Ts-3C

Lo

w

Medium

High

High

Tr

Medium

Lo

w

Lo

w

Ts+3C

Ts+2C

Ts+1C

Ts

High

Medium

Lo

w

HYDRONIC CASSETTE 55

BUZZER

If a command is received by the air conditioner, the master unit will respond with 2 beeps for each setting,
and the slave unit will respond with 1 beep.

AUTO RESTART

The system uses non-volatile memory to save the present operation parameters when system is turned

off or in case of system failure or cessation of power supply. Operation parameters are mode, set

temperature, swing louver’s position, and the fan speed. When power supply resumes or the system is

switched on again, the same operations as previously set will function.

OPERATION OF CONTROL PANEL ON HIGH WALL UNIT
ON/OFF SWITCH

i. This is a tact switch to select Cool→Heat→Off operation mode.

ii. In cool mode, the set temperature of the system is 24ºC with auto fan speed and swing. There are

no timer and sleep modes.

iii. In heat mode, the set temperature of the system is 24ºC with auto fan speed and swing. There are

no timer and sleep modes.

iv. Master unit that does not use LCD wall pad will globally broadcast.

v. Master unit that does not use LCD wall pad will globally broadcast.

Note: When button pressing is effective, master unit buzzer will beep twice and slave unit beeps once.

DRAIN PUMP

Drain pump turns on if thermostat cut in during cooling or dehumidification cooling cycle. It will remain on
for at least 5 minutes after thermostat cut out. During mode change from cooling to non cooling mode,
water pump will on for minimum 5 minutes.

Warning! If turn off the system by circuit breaker (or main power supply) the drain pump
does not work after turn off.

FLOAT SWITCH
Float-switch open before turning on.

If float switch (N/C) is opened before the unit is turned on. MTV1 is off. Drain pump and indoor fan will
operate. After float switch is closed, MTV1 is on.

Float switch is opened, when unit is on.

If float switch is opened continuously ≧5sec, drain pump will work and MTV1 cut off. When the float
switch is closed, the drain pump will run for additional 5 minutes. If the float switch is opened for 10

minutes continuously, MTV1 will remain off. Indoor fan runs at set speed and system report error.

Float switch is opened, when unit is off.

If the float switch is opened, the drain pump will work. When the float switch is closed, the drain pump will

run for additional 5 minutes. If the float switch is opened for 10 minutes continuously, system report error.

ELECTRIC HEATER SAFETY SWITCH

Before the electrical heater is turned on, the EH safety switch must be closed. If this contact is opened
continuously ≧1sec, heater must be cut off immediately and report error. Once the contact is returned to
close position ≧60sec, reset the error and heater is allowed to cut in again.
Should EH safety switch be opened ≧ 3 times within 60 minutes, heater is not allowed to cut in anymore.
Turn off the unit to reset the fault provided that the switch has returned to close position.

HYDRONIC CASSETTE 56

ERROR DESCRIPTION

LED lights
Indication - with Master-Slave Connection

For unit with handset only
Error message can be found in LED lights on unit body. Table below indicate the error code for master and all slave
unit.

For all units (both master and slave)
High speed Red LED On
For master unit indicating defect status of all slave unit
Unit 2 failure Blink 2 times, stop 3 sec
Unit 3 failure Blink 3 times, stop 3 sec
Unit 4 failure Blink 4 times, stop 3 sec
Unit 5 failure Blink 5 times, stop 3 sec
Unit 6 failure Blink 6 times, stop 3 sec
Unit 7 failure Blink 7 times, stop 3 sec
Unit 8 failure Blink 8 times, stop 3 sec
Unit 9 failure Blink 9 times, stop 3 sec
Unit 10 failure Blink 10 times, stop 3 sec
Unit 11 failure Blink 11 times, stop 3 sec
Unit 12 failure Blink 12 times, stop 3 sec
Unit 13 failure Blink 13 times, stop 3 sec
Unit 14 failure Blink 14 times, stop 3 sec
Unit 15 failure Blink 15 times, stop 3 sec
Unit 16 failure Blink 16 times, stop 3 sec
Unit 17 failure Blink 17 times, stop 3 sec
Unit 18 failure Blink 18 times, stop 3 sec
Unit 19 failure Blink 19 times, stop 3 sec
Unit 20 failure Blink 20 times, stop 3 sec
Unit 21 failure Blink 21 times, stop 3 sec
Unit 22 failure Blink 22 times, stop 3 sec
Unit 23 failure Blink 23 times, stop 3 sec
Unit 24 failure Blink 24 times, stop 3 sec
Unit 25 failure Blink 25 times, stop 3 sec
Unit 26 failure Blink 26 times, stop 3 sec
Unit 27 failure Blink 27 times, stop 3 sec
Unit 28 failure Blink 28 times, stop 3 sec
Unit 29 failure Blink 29 times, stop 3 sec
Unit 30 failure Blink 30 times, stop 3 sec
Unit 31 failure Blink 31 times, stop 3 sec
Unit 32 failure Blink 32 times, stop 3 sec

For all units Yellow light

Medial speed Yellow Led on

For all units Green LED light
Low speed Green LED ON
Electrical heater failure Blink 1times, stop 3 sec
Indoor coil sensor 2 failure Blink 2 times, stop 3 sec
Return air sensor failure Blink 3 times, stop 3 sec
Indoor coil sensor 1 failure Blink 4 times, stop 3 sec
Indoor coil low temperature protection Blink 5 times, stop 3 sec
Indoor coil over heat protection Blink 6 times, stop 3 sec
Water pump failure Blink 7 times, stop 3 sec

Table 1

HYDRONIC CASSETTE 57

For unit with wall pad only
Error message can be found in both LED lights on unit body (please refer to table 1) and wall pad error indication.
(Please refer to page 49 Error Indication)

Note: If the address of slave unit is not set (refer to appendix I) LED lights and Wall pad of the master unit will not
show the status of the defective slave unit.

Without Master-Slave connection

For unit with handset only

For all units Red LED light on the unit
High speed Red LED On
Medial speed Yellow LED On
Low speed Green LED On

For all units Green LED light on the unit
Electrical heater failure Blink 1times, stop 3 sec
Return air sensor failure Blink 3 times, stop 3 sec
Indoor coil sensor 1 failure Blink 4 times, stop 3 sec
Indoor coil low temperature protection Blink 5 times, stop 3 sec
Indoor coil over heat protection Blink 6 times, stop 3 sec

For unit with wall pad only
Error message can be found in both LED lights on the unit body (please refer to table 2) and on the wall
pad error indication. (Please refer to page 49 Error Indication)

Table 2

HYDRONIC CASSETTE 58

SENSOR RESISTANCE R-T CONVERSION TABLE

R25: 10KΩ±1%
B25/85: 3977±1%

T Rmin Rnom Rmax T Rmin Rnom Rmax

(℃)

(KΩ) (KΩ) (KΩ)

(℃)

(KΩ) (KΩ) (KΩ)

-30 174 182.7 191.8 4 26.11 26.9 27.71

-29 163.4 171.5 179.9 5 24.85 25.59 26.34

-28 153.6 161.1 168.9 6 23.65 24.35 25.05

-27 144.4 151.3 158.5 7 22.52 23.17 23.83

-26 135.8 142.2 148.9 8 21.45 22.06 22.68

-25 127.8 133.8 140 9 20.44 21.01 21.59

-24 120.3 125.8 131.6 10 19.48 20.02 20.55

-23 113.3 118.4 123.8 11 18.58 19.7 19.58

-22 106.7 111.5 116.5 12 17.71 18.18 18.65

-21 100.6 105.1 109.7 13 16.9 17.33 17.77

-20 94.9 99.03 103.3 14 16.12 16.53 16.94

-19 89.51 93.39 97.41 15 15.39 15.77 16.16

-18 84.5 88.11 91.85 16 14.69 15.05 15.41

-17 79.8 83.17 86.64 17 14.03 14.37 14.7

-16 75.39 78.53 81.76 18 13.41 13.72 14.03

-15 71.26 74.18 77.19 19 12.81 13.1 13.4

-14 67.37 70.1 72.9 20 12.24 12.52 12.79

-13 63.73 66.26 68.88 21 11.7 11.96 12.22

-12 60.3 62.67 65.1 22 11.19 11.43 11.67

-11 57.08 59.28 61.55 23 10.71 10.93 11.15

-10 54.05 56.1 58.22 24 10.24 10.45 10.66

-9 51.19 53.12 55.08 25 9.8 10 10.2

-8 48.51 50.3 52.14 26 9.374 9.57 9.765

-7 45.98 47.66 49.37 27 8.969 9.16 9.351

-6 43.61 45.17 46.77 28 8.584 8.77 8.957

-5 41.36 42.82 44.31 29 8.218 8.4 8.582

-4 39.25 40.61 42 30 7.869 8.047 8.225

-3 37.26 38.53 39.83 31 7.537 7.71 7.885

-2 35.38 36.56 37.78 32 7.221 7.39 7.56

-1 33.6 34.71 35.85 33 6.92 7.085 7.251
0 31.93 32.97 3402 34 6.633 6.794 6.956
1 30.35 31.32 32.3 35 6.36 6.517 6.675
2 28.85 29.76 30.68 36 6.099 6.252 6.407
3 27.44 28.29 29.15 37 5.85 6 6.151

HYDRONIC CASSETTE 59

R25: 10KΩ±1%

B25/85: 3977±1%

T Rmin Rnom Rmax T Rmin Rnom Rmax

(℃)

(KΩ) (KΩ) (KΩ)

(℃)

(KΩ) (KΩ) (KΩ)

38 5.614 5.759 5.907 75 1.417 1.474 1.532
39 5.387 5.53 5.673 76 1.37 1.426 1.482
40 5.172 5.31 5.451 77 1.326 1.379 1.434
41 4.966 5.101 5.238 78 1.282 1.335 1.389
42 4.769 4.901 5.034 79 1.241 1.292 1.344
43 4.582 4.71 4.84 80 1.201 1.25 1.302
44 4.402 4.527 4.654 81 1.162 1.211 1.261
45 4.231 4.353 4.477 82 1.125 1.172 1.221
46 4.067 4.186 4.307 83 1.089 1.135 1.183
47 3.911 4.027 4.144 84 1.055 1.1 1.146
48 3.761 3.874 3.989 85 1.021 1.065 1.111
49 3.618 3.728 3.84 86 0.9891 1.032 1.077
50 3.481 3.588 3.697 87 0.9582 1 1.044
51 3.35 3.454 3.561 88 0.9284 0.9697 1.012
52 3.225 3.326 3.43 89 0.8998 0.9401 0.9818
53 3.105 3.204 3.305 90 0.8721 0.9115 0.9522
54 2.99 3.086 3.185 91 0.8455 0.8839 0.9237
55 2.88 2.974 3.07 92 0.8198 0.8573 0.8961
56 2.774 2.866 2.959 93 0.795 0.8316 0.8696
57 2.673 2.762 2.854 94 0.7711 0.8069 0.8439
58 2.576 2.663 2.752 95 0.748 0.783 0.8192
59 2.483 2.568 2.655 96 0.7258 0.7599 0.7953
60 2.394 2.477 2.562 97 0.7043 0.7376 0.7722
61 2.309 2.39 2.472 98 0.6836 0.7161 0.7499
62 2.227 2.306 2.386 99 0.6635 0.6953 0.7283
63 2.149 2.225 2.304 100 0.6442 0.6752 0.7075
64 2.073 2.148 2.224 101 0.6255 0.6558 0.6874
65 2.001 2.074 2.148 102 0.6075 0.6371 0.6679
66 1.931 2.002 2.075 103 0.59 0.619 0.6491
67 1.865 1.934 2.005 104 0.5732 0.6015 0.631
68 1.801 1.868 1.937 105 0.5569 0.5846 0.6134
69 1.739 1.805 1.872
70 1.68 1.744 1.81
71 1.623 1.686 1.75
72 1.569 1.63 1.692
73 1.516 1.576 1.637
74 1.466 1.524 1.583

HYDRONIC CASSETTE 60

CONTROL AND POWER SUPPLY WIRING DIAGRAMS

HYDRONIC CASSETTE 61

MASTER-SLAVE CONTROL WIRING DIAGRAM

HYDRONIC CASSETTE 62

MALFUNCTION CAUSE REMEDY

The fan coil does
not start up

No voltage

Mains switch in the “OFF

Faulty room control

Faulty fan

- Check for presence of
voltage

- Place in the “ON” position

- Check the room control

- Check fan motor

Filter clogged

Air flow obstructed

Room control regulation

Incorrect water temperature

Air present

Insufficient output

- Clean the filter

- Remove obstacles

- Check

- Check

- Vent

Contact between metal parts

Loose screws

Noise and
vibrations

- Check

- Tighten screws

HYDRONIC CASSETTE 63

Appendix I

MASTER AND SLAVE UNIT FUNCTION

The control PCB can be set either as a master unit or slave unit.

2.A.1 MASTER UNIT FUNCTION

a) The master unit sends data on its setting to the slave unit.

b) The master unit settings are Unit ON/OFF, Mode, Fan Speed, Set Temperature, Swing Function, and
Sleep Function for handset operation.

c) The master unit settings are Unit ON/OFF, Mode, Fan Speed, Set Temperature, Swing Function,
Sleep Function and Weekly Timer ON/OFF program for wall pad operation.

2.A.2 SLAVE UNIT FUNCTION

a) The slave unit receives data on its settings from the master unit.

b) The slave unit is allowed to change to a locally desired setting by local controller as long as there are
no subsequent changes to the settings of the master unit.
c) The slave units can be set individually for timer on and off function by handset or wall pad. The
handset cannot override wall pad timer and clock setting.

When unit is power on, buzzer responds as below:

With MTV: The master unit will beep 3 times, and the slave unit will beep once.
Without MTV: The master unit will beep 4 times, and the slave unit will beep twice

2.A.3 MASTER – SLAVE INSTALLATION

HANDSET AS MASTER CONTROL UNIT:

a) Connect all the units PCBs according to the wire color and type of connector.
b) Select the master unit by closing the SW6 DIP switch on the main PCB
c) Ensure the SW6 DIP switch in the PCB of the slave unit is opened.
d) Switch on the units by connecting the main power supply.
e) Using handset set the operation parameters for the Master unit which will automatically send the
settings to the slave unit.
f) Master unit will beep twice confirming receipt of commands while Slave unit will beep once.

WALLPAD AS MASTER CONTROL UNIT:

a) Connect all the units PCBs according to the wire color and type of connector.
b) Select the master unit by closing the SW6 DIP switch on the main PCB
c) Ensure the SW6 DIP switch in the PCB of the slave unit is opened.
d) Provide each slave unit an addressable code by closing SW1 – SW5 DIP switch according to the DIP
switch chart.
e) Switch on the units by connecting the main power supply.
f) Using the wall pad set the operation parameters for the Master unit which will send the setting to the
slave units based on Global-control communication or Addressable communication methods. For detail

please see 2.A.6 MASTER-SLAVE COMMUNICATION METHOD & Wall pad operation item 11
Networking Master – Slave control on page 49.

g) Master unit will beep twice confirming receipt of commands while Slave unit will beep once.

HYDRONIC CASSETTE 64

2.A.4 MASTER-SLAVE CONFIGURATION

Master unit: close SW6 [DIP switch] before power on. Master will beep twice to the LCD wireless
handset or LCD wall pad confirming receipt of commands. Each master can command up to 31 slave
units.
Slave unit: open SW6 [DIP switch] before power on. Slave unit will beep once to the LCD wireless
handset or LCD wall pad confirming receipt of commands.

Important note: Data loggers are not applicable to Master-Slave System.

2.A.5 MASTER-SLAVE CONTROL

Above control PCB can receive data from both wireless LCD handset and wired wall pad. Once wall pad
is connected to the PCB, receiver from the unit will stop receiving signal from wireless LCD handset.
LCD handset can only provide signal to Wall Pad receiver. When wall pad is disconnected from the PCB
for 5 seconds, it will revert to wireless LCD handset reception automatically.

2.A.6 MASTER-SLAVE COMMUNICATION METHOD

There are two modes for Master-slave structure.

Global Control communication
Master will broadcast the settings to all slave units. During normal operation, slave units can receive
commands from its wireless handset and wall pad control panel. Upon reception of master global
commands, all slave unit settings will be replaced by the master settings.

Addressable communication
Master controller must be LCD wall pad. Slave unit parameters are set as usual. Upon receiving the
control commands from a master, the addressed slave unit settings will be replaced by the master
settings.

If master unit is equipped with wireless LCD handset only, it can only use Global-Control communication
method. If it is equipped with LCD wall pad, it can use both communication methods.

DIP1 used for master slave address setting.
DIP switch address setting: 1 for ON, 0 for OFF.

SW6 SW5 SW4 SW3 SW2 SW1 Unit No. Remark
1 0 0 0 0 0 01 Master
0 0 0 0 0 0 01 Slave

- 0 0 0 0 1 02 Slave

- 0 0 0 1 0 03 Slave

- 0 0 0 1 1 04 Slave

- 0 0 1 0 0 05 Slave

- 0 0 1 0 1 06 Slave

- 0 0 1 1 0 07 Slave

- 0 0 1 1 1 08 Slave

- 0 1 0 0 0 09 Slave

- 0 1 0 0 1 10 Slave

- 0 1 0 1 0 11 Slave

- 0 1 0 1 1 12 Slave

- 0 1 1 0 0 13 Slave

- 0 1 1 0 1 14 Slave

- 0 1 1 1 0 15 Slave

- 0 1 1 1 1 16 Slave

- 1 0 0 0 0 17 Slave

HYDRONIC CASSETTE 65

- 1 0 0 0 1 18 Slave

- 1 0 0 1 0 19 Slave

- 1 0 0 1 1 20 Slave

- 1 0 1 0 0 21 Slave

- 1 0 1 0 1 22 Slave

- 1 0 1 1 0 23 Slave

- 1 0 1 1 1 24 Slave

- 1 1 0 0 0 25 Slave

- 1 1 0 0 1 26 Slave

- 1 1 0 1 0 27 Slave

- 1 1 0 1 1 28 Slave

- 1 1 1 0 0 29 Slave

- 1 1 1 0 1 30 Slave

- 1 1 1 1 0 31 Slave

- 1 1 1 1 1 32 Slave

HYDRONIC CASSETTE 66