AHRI SUPERIOR PCG-04-V Installation, Operation & Service Manual Download Page 69

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SK2018 PCG(H)-V/P-AECM-001

E.2.

Open Modbus protocol

Transfer Mode: RTU, BAUD Rate: 9600bps, 8 data bit, 1 stop bit, None parity bit

The communications require a delay of 80ms between reading an answer and sending the next command. All

temperatures are equal to reading data*10 accuracy: 1 degree F.

Supported Functions:

Function Code

Function Description

01(01H)

Read Coils

02(02H)

Read Discrete Inputs

03(03H)

Read Holding Registers

04(04H)

Read Input Registers

05(05H)

Write Single Coil

06(06H)

Write Single Register

15(0FH)

Write Multiple Coils

16(10H)

Write Multiple Registers

255(FFH)

Extended Commands which are used to test unit

Valid Error code table:

Error code

Description

Definition

01 (01H)

Invalid commands

Received commands beyond valid commands

02 (02H)

Invalid data address

Data addresses beyond valid data address

03 (03H)

Invalid data

Data beyond definition range

04 (04H)

Write data not successful

Write data did not succeed

Coils table:

Description

Address

Type*

Remark

Unit ON/OFF

100000

R/W

Sleep mode

100001

R/W

Louver swing

100002

R/W

Reserved

100003 to 100015

Discrete table:

Description

Address

Type*

Remark

MTV1

200000

MTV2

200001

AUX1

200002

AUX2

200003

Condensate pump

200004

Electrical heater

200005

Wired wall pad

200006

PRO

200007

Float switch

200008

Reserved

200009

EH safety switch

200010

Unit ON/OFF status

200011

Testing purpose only.

* R = read only, W = write only, R/W = read and write.

Summary of Contents for SUPERIOR PCG-04-V

Page 1: ...SK2018 PCG H V P AECM 001 ...

Page 2: ... performance we manage every stage in the manufacturing of our products Throughout the production process we maintain strict control starting 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 WEEE MARK Quality Controlled from Start to Finish All products c...

Page 3: ...e 26 Condensate Drainage Connection 27 External Drain Pan Installation 27 Water Connections and Valve Configurations 28 Fresh Air Renewal Connection 29 Branch Duct Connection 31 Suspension Bolts Layout and Ceiling Opening 32 Electrical Connection 36 Mounting Front Panel Assembly 37 Start Up 37 C Maintenance 39 For Units Out Of Use for Extended Period 39 Extra Maintenance 39 Filter Removal 40 Air V...

Page 4: ...il in Winter 60 LED Display and Error Description 62 LED Display on Master Slave connection 63 E Networking System 64 Master Slave Network 64 Master Control Unit Settings 64 Master Slave Network Setup 65 Master Slave Communication Method 67 Open Modbus protocol 68 F Control Specifications Flexible Function PCB NA EC W1 Control 71 Features 71 I O Port Definitions 71 Onboard configuration 71 Wiring ...

Page 5: ...Page 4 of 83 SK2018 PCG H V P AECM 001 G User Interface 76 Remote Handset 76 Wired Wall Pad Controller 77 H Sensor Resistance R T Conversion Table 81 I Troubleshooting 83 ...

Page 6: ...on on board PCB with drain pump louver and zone control functionality X No control box pre installed X 220V EC motor Y 115V EC motor P Chilled Hot Water 4 Pipe V Chilled Hot Water 2 Pipe VEH Chilled Water 2 Pipe with Electric Heater 04 16 for PCG Unit Sizes See General Specification Section A for cooling and heating capacities 12 20 for PCH PCG Hydronic Cassette G Series PCH Hydronic Cassette H Se...

Page 7: ...the front panel A float switch is fitted to stop the cooling action should the pump become blocked or fail Louver Louver vanes are manufactured from ABS to prevent condensation from forming automatic adjustable and driven by stepping motors on unit Fresh air The fresh air system for cassette unit allows up to 15 of unit airflow maximum air flow per connection is 60 CFM as fresh air intake per conn...

Page 8: ...ressure Level Outlet dB A 43 39 27 50 40 26 50 40 26 45 42 30 Sound Power Level Outlet 52 48 36 59 49 35 59 49 35 54 51 39 Electrical Power Input in Cooling Mode H W 21 47 47 38 M 14 8 18 18 27 L 11 11 11 18 Power input in Heating Mode H 16 42 42 33 M 9 8 13 13 22 L 6 6 6 13 Fan Motor Running Current 115V H A 0 37 0 82 0 82 0 66 Fan Motor Running Current 220V H 0 19 0 43 0 43 0 35 Hydronic Cooling...

Page 9: ...5 32 58 50 57 Sound Power Level Outlet 63 51 39 65 54 41 67 59 46 Electrical Power Input in Cooling Mode H W 89 82 224 M 34 37 79 L 18 16 27 Power Input in Heating Mode H 84 77 219 M 29 32 74 L 13 11 22 Fan Motor Running Current 115V H A 1 55 1 43 3 90 Fan Motor Running Current 220V H 0 81 0 75 2 04 Hydronic Cooling Water Flow Rate H GPM 5 6 4 6 6 4 M 3 9 3 2 5 2 L 1 8 1 6 3 6 Cooling Pressure Dro...

Page 10: ...5 54 41 67 59 46 Electrical Power Input in Cooling Mode H W 47 38 89 82 224 M 18 27 34 37 79 L 11 18 18 16 27 Power Input in Heating Mode H 42 33 84 77 219 M 13 22 29 32 74 L 6 13 13 11 22 Fan Motor Running Current 115V H A 0 82 0 66 1 55 1 43 3 90 Fan Motor Running Current 220V H 0 43 0 35 0 81 0 75 2 04 Hydronic Cooling Water Flow Rate H GPM 2 5 2 6 3 2 3 9 4 4 M 1 8 1 6 2 3 2 7 3 4 L 0 9 1 2 1 ...

Page 11: ...n Height Fin Length Fins inch No of rows No of circuits Tube Diameter Inner Outer PCG 06 08 P 9 13 16 47 1 16 51 1 8 13 2 3 Ø3 8 PCG 09 P 7 7 8 84 9 16 90 13 2 3 Ø3 8 PCG 16 P 9 13 16 84 9 16 90 13 2 5 Ø3 8 PCH 12 P 8 7 8 60 1 4 64 5 16 13 2 3 Ø3 8 PCH 20 P 9 13 16 73 3 4 77 15 16 13 2 5 Ø3 8 4 Pipe Systems Heating Coil Model Fin Height Fin Length Fins inch No of rows No of circuits Tube Diameter ...

Page 12: ...25 7 30 3 38 0 41 5 42 9 45 9 50 2 52 0 315 0 47 8 40 8 32 6 38 1 34 7 36 0 45 5 46 3 48 4 56 4 55 1 56 6 400 0 53 5 39 1 27 0 30 4 28 6 37 5 40 7 43 6 49 1 50 2 52 3 55 1 500 0 43 7 39 9 29 7 33 7 34 0 40 5 39 4 49 5 49 2 51 7 54 0 57 7 630 0 41 0 33 4 16 5 22 5 20 8 30 3 36 4 42 3 47 2 49 4 53 2 56 2 800 0 41 5 32 1 15 0 18 4 17 3 30 1 34 1 40 5 45 0 49 4 53 1 55 6 1000 0 38 9 31 0 14 7 17 8 16 ...

Page 13: ... 4 46 6 50 5 315 0 49 5 39 3 16 5 15 8 15 7 19 5 28 2 34 2 40 4 43 9 46 6 49 5 52 6 400 0 50 3 37 0 21 5 17 5 23 0 22 6 27 0 32 8 37 4 41 1 45 7 50 3 51 8 500 0 51 6 39 0 25 4 25 4 28 0 25 0 32 1 37 4 39 6 42 7 47 7 51 6 54 2 630 0 49 2 34 7 21 7 21 3 22 2 22 4 26 1 31 6 36 2 40 8 45 5 49 2 52 5 800 0 49 5 33 8 15 0 14 8 15 2 15 8 23 1 30 4 37 2 42 4 45 4 49 5 52 2 1000 0 48 8 32 8 16 5 15 7 15 8 ...

Page 14: ...45 3 46 7 48 9 55 0 60 2 315 0 55 1 43 5 35 8 31 2 33 2 35 0 39 9 43 9 47 7 50 7 53 9 56 9 400 0 51 5 42 7 37 8 28 1 31 6 39 9 49 2 43 9 47 3 50 9 54 5 62 2 500 0 56 1 47 7 31 4 23 0 26 0 35 6 40 2 47 1 51 4 53 7 56 9 59 3 630 0 54 2 46 1 28 7 20 3 23 8 33 5 40 0 45 0 49 1 52 9 57 2 58 7 800 0 53 8 44 1 25 7 17 0 20 8 30 6 38 9 43 6 48 1 51 3 57 5 58 1 1000 0 51 9 42 0 22 1 14 7 18 2 27 2 34 9 42 ...

Page 15: ...8 52 7 56 7 57 5 315 0 59 4 50 5 38 2 27 7 28 4 36 8 43 1 49 7 51 7 55 0 56 9 58 7 400 0 56 9 49 6 35 0 23 4 26 0 35 0 42 4 46 8 49 8 53 6 56 5 58 4 500 0 54 0 46 3 31 3 20 0 23 0 30 9 38 5 44 8 48 7 51 3 53 1 55 3 630 0 58 4 48 3 33 9 24 1 25 4 33 9 40 3 46 2 51 6 56 4 57 4 60 3 800 0 62 2 49 3 32 5 24 2 25 7 32 5 40 6 47 1 51 4 56 7 60 9 62 2 1000 0 58 2 46 3 29 7 18 8 21 0 29 4 37 3 43 0 48 3 5...

Page 16: ...50 44 1 37 1 23 29 8 28 7 33 3 41 44 5 45 9 48 9 53 2 55 315 50 8 43 8 35 6 41 1 37 7 39 48 5 49 3 51 4 59 4 58 1 59 6 400 56 5 42 1 30 33 4 31 6 40 5 43 7 46 6 52 1 53 2 55 3 58 1 500 46 7 42 9 32 7 36 7 37 43 5 42 4 52 5 52 2 54 7 57 60 7 630 44 36 4 19 5 25 5 23 8 33 3 39 4 45 3 50 2 52 4 56 2 59 2 800 44 5 35 1 18 21 4 20 3 33 1 37 1 43 5 48 52 4 56 1 58 6 1000 41 9 34 17 7 20 8 19 30 4 37 5 4...

Page 17: ...9 29 4 35 8 42 5 43 6 46 4 50 6 54 5 315 53 5 43 3 20 5 19 8 19 7 23 5 32 2 38 2 44 4 47 9 50 6 53 5 56 6 400 54 3 41 25 5 21 5 27 26 6 31 36 8 41 4 45 1 49 7 54 3 55 8 500 55 6 43 29 4 29 4 32 29 36 1 41 4 43 6 46 7 51 7 55 6 58 2 630 53 2 38 7 25 7 25 3 26 2 26 4 30 1 35 6 40 2 44 8 49 5 53 2 56 5 800 53 5 37 8 19 18 8 19 2 19 8 27 1 34 4 41 2 46 4 49 4 53 5 56 2 1000 52 8 36 8 20 5 19 7 19 8 20...

Page 18: ...CM 32 11 16 28 3 4 13 9 16 30 1 2 3 5 16 5 7 8 10 1 4 PCH 20 V AECM 38 9 16 32 11 16 19 3 16 34 7 16 4 3 16 7 11 7 16 Model H I J K L M N PCG 04 V AECM 11 1 8 4 5 8 4 5 16 2 6 3 8 4 7 8 Φ3 15 16 PCG 08 08R V AECM 12 1 2 4 5 8 5 3 8 2 6 3 8 6 7 8 Φ3 15 16 PCH 12 V AECM 11 5 6 4 15 16 6 7 16 2 6 3 8 5 3 16 Φ3 15 16 PCH 20 V AECM 12 52 4 5 8 5 3 4 2 6 1 8 5 3 4 Φ3 15 16 All dimensions are approximate...

Page 19: ... 2 24 13 16 Φ3 15 16 20 1 2 PCG 16 V AECM 26 3 4 48 13 16 45 1 16 23 29 1 2 24 13 16 Φ3 15 16 20 1 2 Model I J K L M N O PCG 09 V AECM 2 4 13 16 2 7 16 4 7 8 10 1 16 11 1 8 4 5 8 PCG 16 V AECM 2 5 5 16 4 7 16 6 7 8 11 7 16 12 1 2 4 5 8 All dimensions are approximate within 1 16 of an inch of those indicated ...

Page 20: ...CM 32 11 16 28 3 4 13 9 16 30 1 2 3 5 16 5 7 8 10 1 4 11 5 16 PCH 20 P AECM 38 9 16 32 11 16 19 3 16 34 7 16 4 3 16 7 11 7 16 12 1 2 Model I J K L M N O PCG 08 P AECM 4 5 8 4 5 16 2 6 3 8 6 7 8 Φ3 15 16 2 PCH 12 P AECM 4 15 16 4 7 16 2 6 3 8 5 3 16 Φ3 15 16 2 PCH 20 P AECM 4 5 8 4 5 16 2 6 1 8 5 3 4 Φ3 15 16 2 All dimensions are approximate within 1 16 of an inch of those indicated ...

Page 21: ...13 16 Φ3 15 16 20 1 2 PCG 16 P AECM 26 3 4 48 13 16 45 1 16 23 29 1 2 24 13 16 Φ3 15 16 20 1 2 Model I J K L M N O P PCG 09 P AECM 2 3 4 3 3 8 2 7 16 4 7 8 10 1 16 11 1 8 4 5 8 2 PCG 16 P AECM 2 3 4 4 5 16 4 7 16 6 7 8 11 7 16 12 1 2 4 5 8 2 All dimensions are approximate within 1 16 of an inch of those indicated ...

Page 22: ...1 16 of an inch of those indicated Differential Pressure Chart Valve Code valve body ON OFF thermoelectric actuator Valve Body Dimensions inch DN A B C D SGS14HFCA 23010201 D20 G3 4 2 3 16 1 7 8 7 8 2 1 2 Valve Code valve body ON OFF thermoelectric actuator Valve Body Dimensions inch DN A B C D SGS14HFCA 23010202 D20 G3 4 2 3 16 3 7 16 2 4 1 16 3 4 ...

Page 23: ...B DR 16 24B DR 15B 24B Normal closed Normal closed Normal closed Voltage 115Vac 24Vac 24Vac Working force 90 125N 90 125N 90 125N Time 4 5min 4 5min 4 5min Power 3W 3W 3W Full stroke 3 5mm 3 5mm 5 0mm Imax 150mA 250mA 250mA Wires 2 wire 2 wire 3 wire red blue black ...

Page 24: ...nd servicing fan coil unit should be performed by qualified service personnel only This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or persons lacking in experience and knowledge of the appliance unless they have been given supervision or instruction concerning it User of this appliance is responsible for his her own safety W...

Page 25: ...mpatibility Optional and standard accessories supplied with the unit are dependent on control configuration type Control Configuration Type Accessory list S1 Complete function on board PCB with integrated group control functionality NA W1 Flexible function on board PCB with drain pump louver and zone control functionality Plug and play control box with complete function controller Standard Factory...

Page 26: ...nd for diverting a small part of the treated air into a neighboring room They must be installed in such a way as to enable treated air to circulate throughout the room and allow the minimum distances required for technical maintenance operations It is advisable to place the unit close to the installation site without removing it from packaging Do not put heavy tools or weights on packaging Upon re...

Page 27: ...osition is the one which allows air diffusion along the ceiling Alternative positions can be selected Confirm sufficient space is provided to allow removal of panels from the ceiling in the selected position and to allow enough clearance for maintenance and servicing operations Figure B 5 1 Figure B 5 2 B 6 False Ceiling Clearance Verify inlet and outlet grilles are not obstructed to ensure proper...

Page 28: ...hose indicated B 8 External Drain Pan Installation 1 Align the two screw holes in the fixing plate to the two holes in the external drain pan Figure B 8 1 and B 8 2 2 Make sure the drain pan is horizontal 3 Tighten the two screws while making sure the external drain pan is installed flush against the fixing plate Figure B 8 3 4 When the installation is completed it is necessary to wrap the connect...

Page 29: ...moelectric or electric motor driven actuation with OPEN CLOSE state actuation W Valve control requires external wired thermostat See thermostat manual for details Connections Review below table for information on valve diameter Model External valve information Type Connector dia inch All models 2 way 3 way 3 4 Valve installations See drawings of external valve installation below by model type For ...

Page 30: ...ake per connection Maximum 2 fresh air connections per unit are allowed 1 The corners of the cassette allow separate ductwork to be installed for outside air intake Figure B 10 1 2 Cut and remove thermal insulating material 3 Open the mounting plate Figure B 10 2 and Figure B 10 3 4 Install the flange to casing and attach with 2 screws Figure B 10 4 and B 10 5 Figure B 10 1 Figure B 10 2 Figure B ...

Page 31: ...Page 30 of 83 SK2018 PCG H V P AECM 001 Figure B 10 4 Figure B 10 5 Fresh Air Flange dimension All dimensions are approximate within 1 16 of an inch of those indicated ...

Page 32: ...num externally insulated Branch duct flange and blanking plates are available as separate accessories items Figure B 11 1 Figure B 11 2 Installation Procedures 1 Look for the yellow sticker on the casing for the location of branch duct connections 2 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 to t...

Page 33: ...g Using installation template remove and or modify the ceiling panels and install the suspension bolts as the images below PCG 04R 08 08R 23 5 8 x 23 5 8 Dimensions for opening 24 1 2 x 11 Suspension Bolts PCG 09 16 45 11 16 x 23 5 8 Dimensions for opening 29 1 2 x 24 7 8 Suspension Bolts ...

Page 34: ... P AECM 001 PCH 12 29 1 2 29 1 2 Dimensions for opening 13 9 16 30 Suspension Bolts PCH 20 33 7 16 33 7 16 Dimensions for opening 19 1 16 34 Suspension Bolts All dimensions are approximate within 1 16 of an inch of those indicated ...

Page 35: ...t support rods into the bracket slot 3 Remove some T bars if necessary to achieve enough clearance 4 Line up the unit to the supporting bars of the ceiling by tightening the nuts and counter nuts of the suspension rods 5 After connecting the condensate drain piping and piping connections confirm fan coil is level 6 Check to ensure the unit is level Drain will at the lowest point when unit is level...

Page 36: ...Page 35 of 83 SK2018 PCG H V P AECM 001 For Twin Fan Unit ...

Page 37: ...Wiring Procedures 1 Open the terminal block cover by removing the 4 screws 2 Connect power cable to the terminal according to the wiring diagram 3 Connect room temperature sensor and coil temperature sensors to control box 4 Connect stepping motors 5 Connect receiver display 6 Connect wired wall pad controller optional 7 Slide the control box into the unit casing and attach with screws Figure 28 I...

Page 38: ... back to front panel Figure B 14 1 Figure B 14 2 Figure B 14 3 B 15 Start Up The unit should not be started up until the system piping has been cleaned and all the air has been purged Check condensate drain pipe slope Confirm the condensate drain pump in good working order Confirm float switch is not loosen or become dislodged during shipping Use the following steps to confirm pump functionality 1...

Page 39: ...Page 38 of 83 SK2018 PCG H V P AECM 001 5 Ensure that voltage and current values correspond with the unit nameplate values check electrical connections 6 Verify louver is open ...

Page 40: ...or replace as necessary C 1 For Units Out Of Use for Extended Period Prior to restarting the unit Clean or replace the air filters Check and remove any obstruction from the external drain pan and the internal drain pan C 2 Extra Maintenance The electrical panel is easily accessible by removing the cover panel Inspection servicing and replacement of internal components such as coils condensate pump...

Page 41: ...he front panel 2 Open the grille downward with care 3 Pull the filter out along the slot 4 Clean the filter and reassemble C 4 Air Vent and Water Purge Valve Step 1 Remove grille access the area indicated by the red line Step 2 Operate the air vent and water purge valve by turning the knobs ...

Page 42: ...tep 3 Remove inner grille and venture Step 4 Locate the Fan Speed Terminal as red line indicated Step 5 Customize fan speed by rewiring the terminal block shown in above picture Step 6 The 3 output wires from Control PCB for fan speed labeled LF MF HF may be rewired to any of the 5 input terminals for Motor labeled 1 2 3 4 5 ONE PCB output wire to ONE motor input terminal ...

Page 43: ...ts Disconnect wire connector and replace the motor C 7 Condensate Pump Kit Replacement Refer to Section C 5 for Steps 1 2 and 3 Step 4 Remove front panel and disconnect stepping motor and IR receiver Step 5 Unscrewing the 8 screws as shown above Step 6 Remove the drain pan and internal drain pan Step 7 Remove the pump kit including Drain pump and Float switch and replace it Wire connector Mounting...

Page 44: ...the 4 screws Disconnect wiring on the terminal Replace with a new control box and reconnect the wires C 9 Electric Heater Installation Refer to Section C 7 for Steps 1 to 6 Step 7 Fix Bulb protection relay on the coil s bracket Step 8 Snap the insulated ring of the electric heater to the electric heater mounting Step 9 Fix bulb protection relay s bulb into brackets Step 10 Plug in the connector of...

Page 45: ...Page 44 of 83 SK2018 PCG H V P AECM 001 REMARKS If the cassette is installed with an Electric Heater do not select motor speed 1 as LF on the control PCB Refer to C 5 to change motor speed ...

Page 46: ...B and all the loads connected to the voltage outputs Neutral N Earth PE Voltage output Fan 1 CN4 Fan 1 driver and motor connection port Fan2 CN5 Fan 2 driver and motor connection port Valve1 MTV1 2 pipe coil circuit valve output chilled hot water valve Voltage output L 4 pipe coil circuit valve output chilled water valve Voltage output L Valve2 MTV2 Reserved 4 pipe coil circuit valve output hot wa...

Page 47: ...2 Voltage free contact ON unit in cooling mode PRO Occupancy contact CN1 2 Stepping motor output CN3 Serial BUS contact CN4 Fan motor 1 output CN5 Fan motor 2 output AI1 Return air temperature sensor Tr AI2 Indoor coil temperature sensor1 Ti1 AI3 Indoor coil temoeraturesensor 2 Ti2 X DISI LED receiver output DA1 24VAC input for modulating valves DA2 modulating valve 1 output 0 10V modulating signa...

Page 48: ...Page 47 of 83 SK2018 PCG H V P AECM 001 D 2 2 Master Slave Networking Wiring Diagram Master Unit Slave Unit Connect to other slave units ...

Page 49: ...de only available SW8 0 SW7 1 Cooling and heating modes available SW8 1 with EH functioning as primary Master Slave setting SW6 1 Master SW6 0 Slave Preheat temperature setting SW4 1 28ºF SW4 0 36ºF 230VAC on off valve setting SW3 1 With valve SW3 0 No valve 2 pipe 4 pipe system configuration SW2 1 4 pipe system SW2 0 2 pipe system PR O contact setting SW1 1 Window contact remote on off When PROs ...

Page 50: ...re or cessation of power supply The restored parameter data set depends on the type of user interface a Handset only user interface When the power ON signal is received by the fan coil unit and no wired wall pad is installed the Mode Fan Speed Set temperature and Louver setting will be the same as the handset setting before the last power OFF b Wall pad only OR wall pad and handset user interface ...

Page 51: ...V1 and AUX1 are turned on Indoor fan runs at the set speed c If Tr Ts then heat operation is terminated and MTV1 and AUX1 are turned off Indoor fan runs at Modbus 310000 setting d The range of Ts is 60 8 86ºF e Indoor fan speed can be adjusted to low medium high and auto f When turned on MTV1 requires 30 seconds before it is fully open g When turned off MTV1 requires 120 seconds before it is fully...

Page 52: ...Page 51 of 83 SK2018 PCG H V P AECM 001 d The range of Ts is 60 8 86ºF e Indoor fan speed can be adjusted to low medium high and auto ...

Page 53: ...oil temperature sensor is damaged then the post heat time is set for 3 minutes Indoor fan runs at set speed Post heat with electrical heater a Indoor fan will run at Modbus 310000 setting before the unit turns off for 20 seconds Over heat protection of indoor coil in post heat a If Ti1 167ºF then MTV1 and AUX1 are turned off Indoor fan remains on and runs at high speed b If Ti1 158ºF then MTV1 and...

Page 54: ...cycle until the user changes the mode manually or restarts the unit Should the Ti1 sensor be damaged auto mode will not function Auto heat with electric heater as primary heat source all configuration auto changeover If current running mode is auto cool mode then the control logic will change over to auto heat mode when all the following conditions are met a Ts Tr 1 8 F or 7 2ºF if economy contact...

Page 55: ...conomy contact is activated then heat operation is activated and AUX1 is turned on Indoor fan runs at the set speed c If Tr Ts then heat operation is terminated and AUX1 is turned off Indoor fan runs at Modbus 310000 setting d The range of Ts is 60 8 86ºF e Indoor fan speed can be adjusted to low medium high and auto Heat mode with electrical heater as booster a MTV1 MTV2 and AUX2 are always off b...

Page 56: ...ff for 20 seconds Over heat protection of indoor coil in post heat a If Ti1 167ºF then AUX1 is turned off indoor fan remains on and runs at high speed b If Ti1 158ºF then AUX1 is turned on indoor fan remains on and runs at set speed c If the indoor coil temperature sensor is damaged then the protection mode will be overridden and the unit will work according to the pre heat and post heat program D...

Page 57: ...rned off b Indoor fan speed can be adjusted to low medium and high HEAT MODE Without Electrical Heater a MTV1 AUX2 and are heater always off b If Tr Ts 1 8ºF or 7 2ºF if economy contact is activated then heat operation is activated MTV2 and AUX1 are turned on Indoor fan runs at the set speed c If Tr Ts then heat operation is terminated MTV2 and AUX1 are turned off Indoor fan runs at Modbus 310000 ...

Page 58: ...oor fan remains on and runs at high speed b If Ti2 158ºF then MTV2 and AUX1 are turned on indoor fan remains on and runs at set speed c If the indoor coil temperature sensor is damaged then the protection mode will be overridden and the unit will work according to the pre heat and post heat set times DEHUMIDIFICATION MODE a MTV2 AUX1 and heater are always off b If Tr 77ºF then MTV1 and AUX2 will b...

Page 59: ...EAT MODE Fan speed cannot change until it has run for more than 30 seconds Fan speed is regulated according to the profile below Fan speed cannot change until it has run for more than 30 seconds Fan speed is regulated according to the profile below After 30 seconds the fan speed is modulated according to the difference between the room temperature and the set temperature The controller adjusts the...

Page 60: ...etween 35 100 º D 10 Buzzer If a command is received by the fan coil unit the master unit will respond with 2 beeps for each setting while the slave unit will respond with 1 beep D 11 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 temperat...

Page 61: ...After the float switch is closed the drain pump will run for an additional 5 minutes If the float switch is opened for 10 minutes continuously then the system reports an error D 15 Electric Heater Safety Switch Before the electrical heater is turned on the EH safety switch must be closed and the fan motor RPM be more than 300RPM If this contact is opened for 1 second or the fan RPM is less than 30...

Page 62: ...tched OFF If Unit with SW2 1 4 pipe system is in Standby Mode If Tr 35 6 ºF for 2 minutes 1 MTV2 is turned ON 2 AUX1 is closed 3 DA3 is 10 VDC 4 If Ti2 41ºF for 2 minutes EH if present is switched ON 5 Indoor fan is turned on at low speed If Tr 41ºF for 2 minutes 1 MTV2 is OFF 2 AUX1 is open 3 DA3 is 0 VDC 4 Electric Heater is turned OFF 5 Indoor fan Switched OFF ...

Page 63: ...ect or not Indoor coil sensor 1 failure Green LED blinks 4 times stops for 3s Ti1 sensor unplugged or damaged 1 Check if Ti1 plug is connected or not 2 Check if sensor s resistance is correct or not Indoor coil low temperature protection Green LED blinks 5 times stops for 3s Water temperature is lower than 37 4ºF Check the water temperature Indoor coil over heat protection Green LED blinks 6 times...

Page 64: ...mes stops for 3s Check unit 15 communication plug and fix it Unit 16 failure RED LED blinks 16 times stops for 3s Check unit 16 communication plug and fix it Unit 17 failure RED LED blinks 17 times stops for 3s Check unit 17 communication plug and fix it Unit 18 failure RED LED blinks 18 times stops for 3s Check unit 18 communication plug and fix it Unit 19 failure RED LED blinks 19 times stops fo...

Page 65: ...mote Control Handset to Set Master Control Unit 1 Connect all the units PCBs according to the wire color and type of connector 2 Select the master unit by setting DIPA S1 SW6 to ON 1 in the PCB 3 Ensure the DIPA S1 SW6 is set to OFF 0 in the PCB on each slave unit 4 Switch on the units by connecting the main power supply 5 Using the handset set the operation parameters for the master unit which wi...

Page 66: ...ox 2 Communication plug A B A B is printed on the main PCB When you connect the wires please ensure connection of A to A and B to B 3 Connection wire i If the total length of wire is more than 1000m please use shielded wire in order to protect the signal transmission ii Complete wire connection First unit Middle unit Last unit ...

Page 67: ...wire contact by using a multimeter 3 Check 1 and 2 3 and 4 5 and 6 to be sure the connections are correct 4 If the resistance between two wire contacts is too high please check and reconnect the wire contacts 4 Reconnect the communication plug to the control box First unit Middle unit Last unit 1st contact 2nd contact 3rd contact 4th contact 5th contact 6th contact ...

Page 68: ...A S1 SW5 DIPA S1 SW4 DIPA S1 SW3 DIPA S1 SW2 DIPA S1 SW1 Unit No Remark 1 0 0 0 0 0 01 Master 0 0 0 0 0 1 02 Slave 0 0 0 0 1 0 03 Slave 0 0 0 0 1 1 04 Slave 0 0 0 1 0 0 05 Slave 0 0 0 1 0 1 06 Slave 0 0 0 1 1 0 07 Slave 0 0 0 1 1 1 08 Slave 0 0 1 0 0 0 09 Slave 0 0 1 0 0 1 10 Slave 0 0 1 0 1 0 11 Slave 0 0 1 0 1 1 12 Slave 0 0 1 1 0 0 13 Slave 0 0 1 1 0 1 14 Slave 0 0 1 1 1 0 15 Slave 0 0 1 1 1 1 ...

Page 69: ...are used to test unit Valid Error code table Error code Description Definition 01 01H Invalid commands Received commands beyond valid commands 02 02H Invalid data address Data addresses beyond valid data address 03 03H Invalid data Data beyond definition range 04 04H Write data not successful Write data did not succeed Coils table Description Address Type Remark Unit ON OFF 100000 R W Sleep mode 1...

Page 70: ...set timer function Minute 300008 W Calibration wired wall pad and set timer function Second 300009 W Calibration wired wall pad and set timer function Hours in Timer on 300010 R W Timer ON Minute in Timer on 300011 R W Timer ON Hours in Timer off 300012 R W Timer OFF Minute in Timer off 300013 R W Timer OFF Icon of Timer ON or OFF 300014 R W BIT0 Icon of Timer ON BIT1 Icon of Timer OFF 1 enable 0 ...

Page 71: ...rical heater failure Bit8 Motor1 Error Bit9 Motor2 Error Bit10 System parameters error Bit11 Reserved Bit12 Reserved Bit13 Reserved Bit14 Reserved Bit15 Reserved Fan speed status 400006 R Low 04 H Medium 02 H High 01 H Mode status 400007 R Cooling mode 01 H Dehumidify mode 02 H Fan mode 04 H Heating 08 H Setting temperature status 400008 R Testing only Room temperature in wall pad status 400009 R ...

Page 72: ...l Input Modulating signal AI2 Low voltage modulating signal input standard 0 5VDC optional 0 10VDC Digital input Programming interface TTL Low voltage digital signal input for board programming Float switch Float Voltage free NC Voltage output Water pump WP Voltage output L EH relay CN5 When EH signal input is powered ON and EC motor RPM 300 RPM EH output is turned ON EC motor CN4 5 wire connectio...

Page 73: ... ALARM FUSE1 RLY2 EMI1 EMI2 PE N2 N1 L1 AI2 DI S4 S3 S1 PROG1 EH L M H AUTO COM MOTOR3 Y1 W1 G0 G1 G2 C R RD RD float control switch for pump BL BK GY JP3 JP4 JP1 BL BL RD WH BR OR EC moter PUMP WH JP2 JP6 JP7 8 BL RD WH BR OR EH or heating valve signal 24Vac High speed signal 24Vac Med speed signal 24Vac Low speed signal 24Vac COM 24VAC 2 pipe sensor Ti1 MOTOR1 MOTOR2 MOTOR4 NA AEC W1 unit wiring...

Page 74: ...s signal contact DA1 0 10Vdc signal DA2 0 10Vdc signal A B RS485 port AC EC S4 Thermostat Wiring scheme Rt MV2 MV1 230Vac 50Hz Main power supply BK IC BG1 X DIS AI1 TTL CN1 CN2 HV EH Relay PUMP FLOAT A FLOAT B RLY1 ALARM FUSE1 RLY2 EMI1 EMI2 PE N2 N1 L1 AI2 DI S4 S3 S1 PROG1 EH L M H AUTO COM MOTOR3 Y1 W1 G0 G1 G2 C R RD RD float control switch for pump BL BK GY JP3 JP4 JP1 BL BL RD WH BR OR EC mo...

Page 75: ...nutes and then turn OFF c At any time i If the float switch is OPEN the drain pump will turn ON ii If the float switch is OPEN and then CLOSES the drain pump will remain ON for 5 minutes and then turn OFF F 5 4 Swing and Louver Control a When the unit is OFF the louvers are closed angle at 100º against vertical b When the unit turns ON the louvers open angle at 87º against the horizontal c When th...

Page 76: ...for 3s Ti1 sensor connection is damaged 1 Check if Ti1 plug is connected or not 2 Check sensor s resistor is good or not Water pump failure Green LED blinks 7 times stops for 3s Float switch is opened 1 Check if the condensate water pipe is connected or not 2 Check if the pump is functioning or not EC motor failure Green LED blinks 9 times stops for 3s No EC motor feedback 1 Check DIPB SW5 and SW6...

Page 77: ... handset is the master unit its settings are automatically sent to the slave units Auto Cool Heat operation will be applicable in 4 pipe system only Swing function is not applicable Swing It is not available Interchange o F and o C on Display Press up and down buttons for 3 seconds then release oF oF ...

Page 78: ...3 SK2018 PCG H V P AECM 001 G 2 Wired Wall Pad Controller Day display Mode display Temperature display Fan speed display Timer display Real Time display Master Slave Button display Network icon Sleep icon Key lock ...

Page 79: ...s press to set timer date from Monday to Sunday Press to set hour and minute of timer on or timer off alternately ON blinks when timer is set to on and OFF blinks when timer is set to off Press or to set timer on off time Press to confirm settings and exit If no operation within 6 seconds it will automatically exit and the setting will not be saved Timer on off icon is on when timer on off is set ...

Page 80: ...rature Press twice temperature blinks in temperature display area then press or to set temperature 3 Mode Press three times Mode icon blinks in mode display area then press to select mode 4 FAN SPEED Press four times fan speed icon blinks in fan speed display area then press to set fan speed 5 Sleep Press five times sleep icon blinks then press to set sleep mode Press to confirm settings and exit ...

Page 81: ...e is no slave unit online only error code is shown in real time minute area Error code table Error reason Error code 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 EC0 15 EC motor RPM setting Not available in AC motor unit DIP SW3 i...

Page 82: ...91 85 60 8 14 69 15 05 15 41 1 4 79 8 83 17 86 64 62 6 14 03 14 37 14 7 3 2 75 39 78 53 81 76 64 4 13 41 13 72 14 03 5 71 26 74 18 77 19 66 2 12 81 13 1 13 4 6 8 67 37 70 1 72 9 68 12 24 12 52 12 79 8 6 63 73 66 26 68 88 69 8 11 7 11 96 12 22 10 4 60 3 62 67 65 1 71 6 11 19 11 43 11 67 12 2 57 08 59 28 61 55 73 4 10 71 10 93 11 15 14 54 05 56 1 58 22 75 2 10 24 10 45 10 66 15 8 51 19 53 12 55 08 7...

Page 83: ... 9697 1 012 125 6 3 225 3 326 3 43 192 2 0 8998 0 9401 0 9818 127 4 3 105 3 204 3 305 194 0 8721 0 9115 0 9522 129 2 2 99 3 086 3 185 195 8 0 8455 0 8839 0 9237 131 2 88 2 974 3 07 197 6 0 8198 0 8573 0 8961 132 8 2 774 2 866 2 959 199 4 0 795 0 8316 0 8696 134 6 2 673 2 762 2 854 201 2 0 7711 0 8069 0 8439 136 4 2 576 2 663 2 752 203 0 748 0 783 0 8192 138 2 2 483 2 568 2 655 204 8 0 7258 0 7599 ...

Page 84: ...tage Check fuse on board 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 the room air sensor Check the water source Check the air vent Contact between metal parts Loose screws Noise and vibrations Check for loosening parts Ti...

Page 85: ...Page 84 of 83 SK2018 PCG H V P AECM 001 ...

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