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Procon MelcoRETAIL MINI, Instruction Manual

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Procon MelcoRETAIL MINI Instruction Manual Download Page 5

 

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Firmware Revision History 

 

 

Firmware 

Version 

Date 

Notes 

 

1.0.0 

 

21/07/17 

Release for testing purposes. 

1.0.1 25/08/17 

Voltage/resistance bands changed for setpoint, mode and fan speed control. 

1.0.2 28/11/17 

Operation of HEATING relay changed so it only energises when in Heat or Auto mode 
when the return air temperature is less than the setpoint. 
 
Operation of COOLING relay changed so it only energises when in Cool or Auto mode 
when the return air temperature is greater than the setpoint. 
 
A configurable relay switching delay has been added to prevent rapid switching. 

1.0.3 

17/01/18 

Added Failsafe AUTO mode feature (see section 

8. Failsafe AUTO Mode

) 

 
 

 
 

All manuals and user guides at all-guides.com

Summary of Contents for MelcoRETAIL MINI

Page 1: ...ATION MANUAL Manual version 1 0 6 Firmware version 1 0 3 For safe and correct use please read this installation manual thoroughly before installing the PROCON MelcoRETAIL MINI All manuals and user gui...

Page 2: ...opriate ined to be in ective and 20 y Tested for use in no n residential dequate corre domestic en user may be n accordanc n request nterference w ipment off an f the following antenna MelcoRETAIL coR...

Page 3: ...h s no liability e this manua te and reliabl of patents or manor not spe d ii subishi Elect he date of de for damages al at any time le However r other rights ecified by the tric UK are w elivery to t...

Page 4: ...ification logos 1 0 4 1 0 2 27 11 17 GD Updates for V1 0 2 firmware Sections 7 9 7 10 and 7 11 updated Addition of new Modbus holding registers see section 12 1 Firmware revision history table added 1...

Page 5: ...nly energises when in Heat or Auto mode when the return air temperature is less than the setpoint Operation of COOLING relay changed so it only energises when in Cool or Auto mode when the return air...

Page 6: ...1 Fig 1 A A A CN105 C CN92 connectiion lead Page 1 All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 7: ...2 Fig 2 Air to a air unit Page 2 All manuals and user guides at all guides com...

Page 8: ...P 13 5 4 3 MODE 13 5 4 4 FAN SPEED 13 5 4 5 OCC MODE 13 5 5 Digital Inputs 14 5 5 1 FORCE ON 14 5 5 2 FORCE OFF 14 5 5 3 AUTO LOCK MODE 14 5 5 4 FAULT 14 5 6 Relay Outputs 15 5 6 1 ON OFF 15 5 6 2 HEA...

Page 9: ...ggering failsafe AUTO mode 29 9 Deadband mode 30 9 1 Settings 30 9 2 Operation 30 9 3 Initialisation 31 10 Setpoint Offset 32 10 1 Settings 32 10 2 Operation 32 11 Modbus RTU 34 11 1 Modbus background...

Page 10: ...from any ectric shock fire uct consult yo acking material as nails and oth way plastic pack apart they face unit make sur ons provide v ke sure you fo served to preve served to preve ician to install...

Page 11: ...lwa he Modbus R section for fur the CN105 CN an be found in ot be connecte ector on the in s used for rem as a gateway n such as curre can be set via eration and for m the system a ays stores up RTU s...

Page 12: ...B 3 2 Power supply The MelcoRETAIL MINI is powered from the CN105 CN92 air conditioner host connector at 12V DC and therefore does not require an external power supply 3 3 RS 485 connection The MelcoR...

Page 13: ...witches are use power cycled 30 can be chos the following v number 1 2 3 4 5 alue for each s all set to the O more details 1 5 all to the O on the same R s which are us 1 and a bank o ed to configur f...

Page 14: ...F Reserved for future use ON Modbus RTU 4 4 Auto Mode Lock Mode selection The function of the LOCK AUTO MODE digital input is determined by switch CONFIG 1 8 When the switch is in the OFF position inp...

Page 15: ...n the OFF position the Timeout feature is disabled When the switch is in the ON position the Timeout feature is enabled 2 3 Timeout Feature OFF Disabled ON Enabled Note The timeout value can be change...

Page 16: ...TU 1 8 Auto Mode Lock Mode OFF AUTO LOCK MODE input used to enable Auto Mode ON AUTO LOCK MODE input used to enable Lock Mode 2 1 Deadband Mode OFF Deadband Mode disabled ON Deadband Mode enabled 2 2...

Page 17: ...require an s A B and gro bus communic rmination res I PCB there s he 120 term nects to either external powe ound conne cations the gro sistor a 2 pin jumpe ination resisto the CN92 or C er supply ect...

Page 18: ...EED can be u E an be used to s e for all four in et to the same ch 2 4 OFF a switch 2 4 ON control the unit o control the u used to contro set the curren nputs see sec type a voltage betw any value of...

Page 19: ...s used CK MODE LOCK MODE i 7 for more det is used to indi e type so just o force the un to force the un is used for eith ails icate the prese t require an op it to switch on nit to switch o her the Au...

Page 20: ...nf ates whether th cates the unit section 7 10 f cates the unit ction 7 11 for m es if there is a formation he unit is runn is in Heat or A for more detai is in Cool or A more details fault with the n...

Page 21: ...Fau Triple Q one MelcoRET e used per twin lt output is b lt output is n Quad syst TAIL MINI for n triple qua eing used ot being used tems each indoor u d system d unit however if the fault outtput is...

Page 22: ...u 2 When Fau le split uni one MelcoRET e used per twin lt output is b lt output is n its in a gro TAIL MINI for n triple qua eing used ot being used oup each indoor u d system d unit however if the fa...

Page 23: ...5 9 Us One MelcoRE sing MXZ ETAIL MINI m split units must be installe s ed for each ind door unit when using a MXZ Z system Page 18 All manuals and user guides at all guides com...

Page 24: ...he curre when the corre ation Statu MINI powers up sh when there flash when the ent state of the esponding rela us p both LEDs w is valid comm ere is valid Mo e relay outputs ay energises s will switc...

Page 25: ...6 25 5 75 6 25 25 6 25 6 75 6 25 6 75 26 6 75 7 50 6 75 7 50 27 7 50 8 25 7 50 8 25 28 8 25 8 75 8 25 8 75 29 8 75 10 0 8 75 10 0 30 Above 10 Above 10 Uncontrolled When the MelcoRETAIL MINI powers up...

Page 26: ...command will then be sent to the indoor unit to set the mode accordingly If the MODE input changes such that a mode band is entered a command will be sent to the indoor unit to change the mode accordi...

Page 27: ...IL MINI powers up it will read the FAN SPEED input and the fan speed will be determined based on data in the table above A command will then be sent to the indoor unit to set the fan speed accordingly...

Page 28: ...the deadband settings will be updated accordingly based on the data in the table above Deadband mode will be enabled even if it s not enabled using DIP switch 2 1 see chapter 4 5 Additionally deadban...

Page 29: ...ode Lock Mode The operation of the AUTO LOCK MODE input is determined by the state of DIP switch 1 8 see chapter 4 4 for details When this DIP switch is OFF the input is used to enable Auto Mode When...

Page 30: ...y OFF Setpoint 21 Inlet Temp 22 Relay OFF Setpoint 21 Inlet Temp 21 Relay OFF Setpoint 21 Inlet Temp 20 Relay ON Setpoint 21 Inlet Temp 19 Relay ON Setpoint 21 Inlet Temp 20 Relay ON Setpoint 21 Inlet...

Page 31: ...tion fault al input is in th Twin Triple one MelcoRET e used per twin ng used never any of th m the indoor un between the e closed posit Quad system TAIL MINI for n triple qua he following a nit is a...

Page 32: ...lit un ended to use o L MINI can be output is bei t being used nits in a gro one MelcoRET e used per twin ng used oup TAIL MINI for n triple qua each indoor u d system unit however if the fault outtpu...

Page 33: ...ault Using MXZ One MelcoRE output is not XZ split unit ETAIL MINI m t being used ts must be installe ed for each ind door unit when using a MXZ Z system Page 28 All manuals and user guides at all guid...

Page 34: ...ible to use the MelcoRETAIL MINI without a connection to a BMS hence without using the four analogue inputs On power up the inputs will be checked to see if they are all below the trigger threshold or...

Page 35: ...s register tab C greater tha controls the M the Heating S erature rises a rises above th erature falls be ature falls belo ally assuming h 2 1 ON ures must be 19 and Cool bles for more i an the Heatin...

Page 36: ...than the Heating Setpoint the unit will be set to HEAT mode with a setpoint of 28 C If greater than or equal to the Cooling Setpoint the unit will be set to COOL mode with a setpoint of 19 C If betwe...

Page 37: ...able to the Set ed using Modb hanged using M ETAIL MINI los perature senso return air temp erature reading ated using the emperature e BMS Virtual S C As the BMS ches 18 C the ures must be tpoint Offs...

Page 38: ...the MelcoRETAIL MINI always has an up to date reading If the BMS Room Temperature is set to 0 C which it will be on power up the setpoint offset feature will be disabled It will only activate when th...

Page 39: ...a value Read an t Read on value 0 ut Read an which h ctions onnections are ata cable Ma one end only It is crucial th ed in a bus net re are two type nd from a Mas ands to other d g data Modbu nected...

Page 40: ...ther function code 06 or 16 Function code 06 is used when writing to a single holding register function code 16 is used for writing to multiple holding registers in the same command Holding Registers...

Page 41: ...READ ONLY 12 40013 8000 No error 6999 Bad communication with indoor unit Refer to indoor unit documentation for description of other fault code values System Type Detected READ ONLY 13 40014 0 ATA 1 A...

Page 42: ...erature in C default 16 C Value must be at least 2 C lower than the Unoccupied Heating Setpoint Deadband Cooling Setpoint 44 40045 Temperature in C default 23 C Deadband Heating Setpoint 45 40046 Temp...

Page 43: ...uto mode Now write value 60 to this Modbus register Now after 60 seconds the unit will leave Auto Mode and run in Fan mode Heating Relay Temperature Offset 57 40058 When in Heat or Auto mode this valu...

Page 44: ...fer to indoor unit documentation for description of other fault code values Unused 9 30010 Current DIP Switch Values 10 30011 Occupancy Mode Input Value Least significant register 11 30012 Value in mV...

Page 45: ...ms Settings Switch State DIP switch 1 6 8 10009 0 Fixed 9600 baud no parity DIP Switch off 1 Software selectable settings DIP Switch on Protocol Selection Switch State DIP switch 1 7 9 10000 0 Reserve...

Page 46: ...ting to multiple coil registers in the same command Note the values of all Coil registers have corresponding Holding registers which can be used instead Coils Digital Outputs Register Name Address Mod...

Page 47: ...RP35 50 60 71 100 125 140JAQ PEAD RP35 50 60 71 100 125 140EA EA2 PEA RP200 250GAQ PKA RP35 50HAL PKA RP60 71 100KAL PLA ZRP35 50 60 71 100 125 140BA BA2 PLA RP35 50 60 71 100 125 140BA BA2 BA3 PLA R...

Page 48: ...HI EL o put the c nual before TSUBIS ECTRIC UK TRAVEL contact add e handing it HI ELEC LLERS LANE HATFI ress teleph t to the cus CTRIC U ELD HERTFORDSH hone numb stomer UK IRE AL10 8XB er on All manua...

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