Mitsubishi Electric ACH1 Installation Manual Download Page 4 | Manualshive

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3

A

Water pipe

B

Thermistor

C

Aluminium tape (field supply)

D

Insulation

E

Tie band

5

[Fig. 5.1.1]

A

B

C

E

D

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Summary of Contents for ACH1

Page 1: ...0 Water Heating Unit Control Box ACH1 FOR INSTALLERS INSTALLATION MANUAL For safe and correct use please read this installation manual thoroughly before installing the ACH1 control box ...

Page 2: ...1 1 Thermistor x 3 2 ACH1 box 3 5 wire adapter 4 Installation manual 2 1 2 Fig 2 1 3 4 ...

Page 3: ...H1H CN52 5 0v IH Drive 5v 10mA T1 DHW T2 UFH T3 UFC DHW SELECT UFH SELECT UFC SELECT UFC SET 10 20 DHW SET 41 55 UFH SET 30 45 A B C D E Set Switches using BCD encoding Switch ON represents 8 4 2 1 Set value BCD setting 40 C Set value BCD setting 30 C Set value BCD setting 10 C See table 2 1 for more detailed explanation of BCD encoding All DHW switches OFF gives 45 C with Immersion Heater Signal ...

Page 4: ...3 A Water pipe B Thermistor C Aluminium tape field supply D Insulation E Tie band 5 Fig 5 1 1 A B C E D ...

Page 5: ... thermistor a or b B A B C D T1 a b Fig 5 1 2 1 E F B A D C T1 b a E 5 5 F A PQFY water heater B Centrifugal pump C 3 way valve D Internal cylinder heat exchanger coil E Immersion heater F Water tank Indirect Cylinder T1 DHW thermistor a or b Only needed if using under floor system Only needed if using under floor system Fig 5 1 2 2 ...

Page 6: ...oling pipe work T2 UFH thermistor B T2 A D C Fig 5 1 3 B T3 A D C A PQFY water heater B Centrifugal pump C 3 way valve D Under floor heating cooling pipe work T3 UFC thermistor 5 Fig 5 1 4 Only needed if using with domestic hot water Only needed if using with domestic hot water 5 ...

Page 7: ...5 3 to see where to attach to C Thermistors D Volt free contacts E Dip switches temperature set F ACH1 box G Water pipe cylinder see B H 5 wire adapter plug attaches to CN52 on PQFY I TH1H connection attach to inlet air TH1H on PQFY J PQFY water heater unit K Immersion heater L Water tank Fig 5 2 ...

Page 8: ...mersion heater to 60 C Binary DHW temperature C UFH temperature C UFC temperature C 0000 45 30 10 0001 41 31 11 0010 42 32 12 0011 43 33 13 0100 44 34 14 0101 45 35 15 0110 46 36 16 0111 47 37 17 1000 48 38 18 1001 49 39 19 1010 50 40 20 1011 51 41 20 1100 52 42 20 1101 53 43 20 1110 54 44 20 1111 55 45 20 6 ...

Page 9: ... securely so that the outside force of the cable is not applied to the terminals Inadequate connection and fastening may generate heat and cause a fire Never repair the unit If the controller must be repaired consult the dealer If the unit is repaired improperly electric shock or fire may result Install the controller according to this Installation Manual If the unit is installed improperly electr...

Page 10: ...ng materials Packing materials such as nails and other metal or wooden parts may cause stabs or other injuries Tear apart and throw away plastic packaging bags so that children will not play with them If children play with a plastic bag which has not been torn apart they face the risk of suffocation 1 3 2 Before starting the test run Caution Do not touch the switches with wet fingers Touching a sw...

Page 11: ...s no slack on all wire connections Some cables power remote controller transmission cables above the ceiling may be prone to be bitten by mice Insert the cables into metal pipes for protection Never connect the power cable to leads for the transmission cables Otherwise the cables could be broken Types of control cables Wiring transmission cables Types of transmission cables Design wiring in accord...

Page 12: ... no more than 45 C 0101 o Immersion function available set temperature to 45 C 0000 all OFF o See as above Type b T1 attached to inlet to cylinder pipe PQFY water outlet o Set temperature to 53 C 1101 on ACH1 In order to increase the output temperature of the water it is necessary to increase the condensing temperature of the Heat Pump This is achieved by setting a Dip Switch as follows PUMY P100 ...

Page 13: ... 5 1 2 then a connection has to be made between the ACH1 unit and the immersion heater When water has reached 44 C the IH drive will become energised and send a signal to the immersion heater to start Attach 2 core 1 25mm shielded wire to both terminals 18 and 19 on the ACH1 Fig 5 1 D and then to immersion heater noting polarity Note Ensure that the wiring is not pinched when fitting the terminal ...

Page 14: ...hes 44 C a signal will be sent to the IH to come on and stay on until 60 C is sensed on T1 even if the DHW signal is lost on terminals 7 and 8 If T1 drops below 45 C the PQFY will come on and the immersion will switch off IH will then come on again at 44 C until T1 has achieved 60 C If DHW signal is lost and T1 is below 45 C and 60 C hasn t been achieved within one DHW cycle i e signal is not rene...

Page 15: ...gnal output once DHW is heated to 45 C IH will come on and stay on until 60 C at the same time UFH signal T2 will take over 6 6 DHW and UFC The same priority takes place with DHW and UFC DHW is more important than UFC The system will operate as in 6 2 with the system being controlled from T1 until the set point has been achieved After which point the UFC signal T3 will take control as in 6 4 If us...

Page 16: ...and is based on the following EU regulations Low Voltage Directive 73 23 EEC Electromagnetic Compatibility Directive 89 336 EEC Please be sure to put the contact address telephone number on this manual before handing it to the customer MITSUBISHI ELECTRIC UK MITSUBISHI ELECTRIC UK TRAVELLERS LANE HATFIELD HERTDFORSHIRE AL10 8XB ...

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