Freedom RASM Series Installation And Maintenance Manual Download Page 1

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Air Source Heat Pump

Installation and Maintenance Manual

Model Numbers

RASM Monoblocs

RWM Splits

RWD Combi (pre-plumbed)

RWH High temp

Summary of Contents for RASM Series

Page 1: ...Air Source Heat Pump Installation and Maintenance Manual Model Numbers RASM Monoblocs RWM Splits RWD Combi pre plumbed RWH High temp ...

Page 2: ...n in line with today s standards and put together a list of the kit required at your cost price Alternatively if you don t currently have a heat pump project but would like to become a heat pump installer and don t know where to start contact us on 02380 274833 or email us at sales freedomhp co uk and we can set you on the correct course Homeowners If you are the homeowner please ask your installe...

Page 3: ...e at least 6 photos showing the outdoor unit control box and cylinder cupboard Pipe We supply a high quality 16x2mm multilayer pipe consisting of 5 layers of polyethylene adhesive and aluminium Typically rated at 95 C at 10bar this strong flexible pipe is well suited to underfloor heating and is manufactured within the EU Controls At Freedom we provide a wide range of controls manufactured by lead...

Page 4: ...e notice of Your installer should have provided you with a room thermostat if you have radiators or a thermostat in every room if you have under floor heating They will tell you how to use these stats The heat pump will run when it gets a run signal from the thermostat It is not controlled by the Hitachi remote controller To turn on the heating all you need to do is turn up the thermostats to turn...

Page 5: ...ature falls 5 degrees below its set point the unit will automatically switch to heating the cylinder This should take less than an hour Once set temperature is achieved the unit will go back to heating the house The hot water cylinder loses almost no heat 1 3 a degree an hour if no hot water is used An anti legionella disinfection operation will be completed at a 3am every Wednesday morning The un...

Page 6: ...con informs about pump operation There are three available pumps on the system Each one is numbered and its corresponding number is displayed below to the pump icon when it is operating Heater step Indicates which of the 3 possible heater steps is applied on space heating DHW Heater Informs about DHW Heater operation If it is enabled Solar Combination with solar energy Compressor Compressor enable...

Page 7: ... cylinder set the stat to 5 Maintenance procedure Stop the unit clean the water strainer in the unit you need a spanner and circlip pliers for this On Monoblocs test the concentration of the Anti freeze glycol in the system using a Glycol tester the level should be 25 If you don t have a glycol tester a glycol tester refractometer can be bought from your heat pump supplier or online Refill the uni...

Page 8: ...er less than 100m from the outdoor unit The box is 360mm wide 490mm high 100mm deep Note the pump in the Monobloc can only manage a run of 10m at 28mm diameter copper each way to the header or cylinder Header Buﬀer or Heat Exchanger Pump Z1 Z1 Z2 The 3 port valve MUST go A to DHW and B to Heating Flow Return at Heat Pump Return from Header Return from Heating Flow out of Header Flow into Header He...

Page 9: ...ect live to 32 and Neutral to 34 the orange and grey wires are not used If a low loss header or buffer is used you can connect a buffer sensor in 8 and 9 Before power up Monobloc Dip Switches when using mirror box In the outdoor unit on the right hand pcb set DSW 4 Pin 1 up to activate indoor unit wiring box You also need to set SSW1 to Local push it down Instead of remote On the Monobloc mirror b...

Page 10: ... pipe between the indoor and outdoor units with refrigeration pipework Pipe Sizes Outdoor Unit Yutaki M Indoor Unit Model Pipe Size Model Pipe Size Gas Pipe Liquid Pipe Gas Pipe Liquid Pipe 3 6 HP Ø 15 88 5 8 Ø 9 52 3 8 3 0 6 0 HP Ø 15 88 5 8 Ø 9 52 3 8 Pipe Limits Outdoor Unit HP 4 5 6 Maximum piping length between outdoor unit and indoor unit Lmax Actual piping length L 75m Equivalent piping len...

Page 11: ...Z1 Z2 Flow Return at Heat Pump Return from Header Return from Heating Flow out of Header Flow into Header The 3 port valve MUST go A to DHW and B to Heating Power the Hitachi system needs 2 power supplies Immersion heater is connected to 31 Live and 30 Neutral Communication cable connect to the control box terminals 1 and 2 Remote controller connect to 3 and 4 Cylinder sensor connect this using 5 ...

Page 12: ...aki M Indoor Unit Model Pipe Size Model Pipe Size Gas Pipe Liquid Pipe Gas Pipe Liquid Pipe 2 HP Ø 12 7 1 2 Ø 6 35 1 4 2 0 HP Ø 15 88 5 8 Ø 6 35 1 4 2 5 HP Ø 6 35 1 4 2 5 HP Ø 9 52 3 8 3 6 HP Ø 15 88 5 8 Ø 9 52 3 8 3 0 6 0 HP Ø 15 88 5 8 Ø 9 52 3 8 Note on the 2 and 2 5HP units run the pipes as per outdoor unit the indoor comes with adaptors to suit the pipework H Before power up On the indoor cir...

Page 13: ... for 15m of pipework each way The additional refrigerant charge required is Size 2 add 30g m after 15m Size 3 add 40g m after 15m Size 4 add 60g m after 15m Size 6 add 60g m after 15m If the pipe length is under 5m set DSW2 pin 1 up to on If the pipe length is over 30M set DSW2 pin 2 to up on When delivered the indoor unit expansion valves are fully closed To open the valve you must apply power to...

Page 14: ...Heating and Hot Water Combi Combi Installation Combi Installation Before power up On the indoor circuit board set the following switches DSW 4 Pin 5 needs to set pushed up DSW 4 Pin 3 push to up to enable immersion heater Note before the unit will run the expansion valve dip switch needs to be set by the fridge engineer If the pipe length is under 5m set DSW2 pin 1 up to on If the pipe length is o...

Page 15: ... 8 HP Ø 25 4 1 1 18 Ø 9 52 3 8 8 HP Ø 25 4 1 1 18 Ø 9 52 3 8 10 HP Ø 12 7 1 2 10 HP Ø 12 7 1 2 Note on the 2 and 2 5HP units run the pipes as per outdoor unit the indoor comes with adaptors to suit the pipework Pipe Limits Outdoor Unit HP 2 2 5 3 4 5 6 8 10 Maximum piping length between outdoor unit and indoor unit Lmax Actual piping length L 50m 75m 70m Equivalent piping length 70m 95m 90m Minimu...

Page 16: ...40V ac The run signal goes into 14 Remove the link Pump Z1 Live 14 and Neutral 34 on a combi wire live to 36 3 port connect live to 32 and Neutral to 34 the orange and grey wires are not used If a low loss header or buffer is used you can connect a buffer sensor in 8 and 9 Wiring Diagram Heating and Hot Water Split Pump Z1 Remote Controller Heating run signal from stat or ufh 3 port Monobloc split...

Page 17: ...5 3 bar maximum In Monobloc units only Using the power fill the system with water and 25 Propylene Glycol Setting up the cylinder immersion heater To avoid the immersion heater cutting out before the legionella function is complete you have to set the stat in the immersion heater to 65 C minimum on a Telford cylinder set it to 5 Powering Up Makes sure all your room thermostats are off and all unde...

Page 18: ...oll to Heat Pump OK 3 Water Pump Configuration OK 4 Minimum off time Change to 0 mins 5 Minimum on time change to 0 mins 6 Overrun time change to 0 mins 7 Press return x2 On all units Adjust the weather comp 8 In system configuration ok 9 Space heating ok 10 Circuit 1 ok 11 Water calculation mode ok 12 OTC gradient shows go left to points 13 In points graph pressing down highlights the water temp ...

Page 19: ...ump details OK flow rates is listed Flow must be 7l min or 0 4m3 hr on size 2 and 3 units 14l min 0 8m3 hr on size 4 5 and 6 units and 25l min or 1 5m3 hr on size 8 and 10 units A 70 also shows on the PCB Starting the System in hot water mode On the controller scroll left highlight Heating C1 press power to turn this off With everything off the indoor PCB will say oF Scroll right highlight DHW pre...

Page 20: ...ation from the unit going into the house All external pipework has to be insulated to meet MCS standards Mounting feet the outdoor units need to be mounted 100mm above the ground we recommend using rubber feet with unistrut channel These come with mounting bolts included Splits have 2 feet monos have 3 feet An expansion vessel pressure gauge pressure relief valve and filling loop All Hitachi units...

Page 21: ... supply a 2 core 0 75mm 2 core flex from 3 and 4 in the remote controller to 3 and 4 in the control box Maximum distance is 100m The cylinder sensor is 1m long you need to connect this using 0 75mm flex 2 core to terminals 5 and 6 in the control box and into the cylinder in the top of the cylinder It must install above the immersion heater You must fix it so it can t be pulled out of the cylinder ...

Page 22: ...1 Menu 2 System configuration press OK 3 Complimentary heating press OK 4 Automatically populates Heating source Monobloc will say HP Boiler Splits and combi will say HP EH Boiler 5 Boiler combination press OK 6 Adjust Bivalent point to your desired bivalent point or 3 C 7 Combination mode Parallel 8 Waiting time 5 min In this config the boiler will run IF the ambient is below the Bi Valent point ...

Page 23: ...at Pumps Ltd All rights reserved Specifications and designs are subject to change without notice Non metric weights and measurements are approximate All data were deemed correct at time of creation All brand product service names and logos are trademarks and or registered trademarks of their respective owners and are hereby recognized and acknowledged v031218 ...

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