Philips HD3600-20 User Manual

Perfect Draft “Beer Tap”

HD3600/20

Philips Domestic Appliances and Personal Care

Service Manual

PRODUCT INFORMATION

- This product meets the requirements regarding interference suppression on radio and TV.

- After the product has been repaired, it should function properly and has to meet the safety requirements as officially laid down at this moment.

TECHNICAL INFORMATION

- Power : 70 W

- Power consumption :

- Cool down period average (KEG 23 °C -> 3 °C) : 0.068 kWh

- Standby period (KEG on 3 °C) : 0.052 kWh

- Voltage : 100 - 120 V - 50/60 Hz 200 - 240 V - 50/60 Hz

- Flow rate : 2 L per minute

- Contents Keg : 6 L

- Colour setting : Black/Metal

- SAP coding : HD3600/20

OPTIONAL (accessories)

- No specific issues

Published by Philips Domestic Appliances and Personal Care Printed in the Netherlands © Copyright reserved Subject to modification

04/10

DISASSEMBLY- AND RE-ASSEMBLY ADVISE

HD3600/20

For your safety first be sure the plug is disconnected from the mains!

Rear case removal:

- To remove the rear case, first remove the 4 screws.

- Open both doors, at the upper/lower right and left side the screws can be found..

Picture 1.

- When the rear has been removed all parts can easy be reached.

Replacing the Keg Connector Assembly:

- The Keg connector assembly is very accurate outlined with assembly at production.

- This has been done to be sure all Kegs will fit easily without leakage to the machine.

- To be sure to place the new Keg connector assembly on the same spot, make the following precautions before unscrewing the Keg connector assembly.

- With a sharp screwdriver, scriber or marking tool you have to make a mark on the plastic, see picture for detail.

- When the mark has been carried out, you can unscrew the 4 posi screws and remove the Keg connector assembly.

- When reassemble the new Keg connector assembly, first connect the air pressure hose and then make sure that the new part will be outlined next to the marking you just made with the original part.

Picture 2.

Replacing the Display:

- When the display has to be replaced for some reason, the complete Right door including display and flat cable has to be replaced.

- Remove the rear case assy, see rear case removal for details.

- Disconnect the flat cable connector from the main PCB that is coming from the right door.

- To re-assembly carry out steps backwards.

Replacing the Fan assy:

- When the Fan has to be replaced, unscrew the 4 posi screws and disconnect the connector of the Fan.

- When re-assemble the fan assy, be sure that the airflow (see arrow on the Fan) is appointing to the heatsink.

* Note when the Fan became defect also Peltier element has

to be replaced or fully checked on performance. Due to overheating also the Peltier element will be damaged.

Replacing the Peltier element:

- When the Peltier element has to be replaced, first remove the rear case assy and Fan assy.

- Unscrew the 2 screws located on the heat sink.

- The heat sink including Peltier element can now be removed.

- With a small screwdriver the Peltier element can be removed from the heat sink, some force maybe needed.

- Before placing the new Peltier element, provide heat sink paste on both side of the Peltier element.

- Place the new Peltier element on the cooler plate on the same position of the removed Peltier element.

NOTE! It is important to place the Peltier element with

the right side on the cooler plate.

- The cooler plate is the aluminium part fixed in the appliance, where the KEG will be cooled on.

- The heat sink is the aluminium part where the fan is assembled on.

- In other words, the cooling side of the Peltier has to point to the cooler plate and the warm side has to point to the heat sink.

- Details to check are:

• Soldered joints must be pointing

to the cooling plate. (when Peltier is placed on the cooler plate the soldered joints are not visible, seen from the backside)

• Colours of wires must be equal

positioned see, picture for detail.

- Be careful and make sure the Peltier element is well placed.

- Now the heat sink can be placed on the peltier element.

- Tighten the screws alternate, to prevent damaging the Peltier element for mounting lop-sided.

- Maximum force that maybe applied to tighten the screws

are: 0.6 Nm.

Picture 3.

Picture 4.

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DISASSEMBLY- AND RE-ASSEMBLY ADVISE

Replacing pressure sensor PCB:

- To replace the pressure sensor PCB assy, situated on the pump, unscrew the 2 screws completely.

- Disconnect the connector, gently turn the PCB assy left and right and at the same time pull the unit up.

- Place the new PCB assy and check if the small rubber ring on the sensor tube is on its place.

Replacing the pump unit:

- Start with disconnecting the air pressure hose and electrical connections.

- Unscrew the 3 screws from the plastic bracket were the pump unit is hanging on.

- To re-assembly carry out steps backwards.

NOTE! To prevent leakage at the connection side of the

hose, cut a small piece off the end of the hose.

HD3600/20

3-12

REPAIR INSTRUCTIONS

Electrical circuit:

- When the appliance does not work, check the electrical circuit.

HD3600/20

Beer outlet

Process block diagram of the appliance

Shortcut to

enter Service

mode

10.5 V

Power supply

Mains

(120 V or 230 V)

J4 J3

Interface board

(rear panel)

J8 J7 J11 J6 J5

10k pull-down

Step through

Service mode

Pressure

Sensor

PCB

Air

pump

J12

Micro controller

PCB

(Front panel)

Display

Air inlet

Keg

NTC

Keg present

switch

Heatsink

plastic bag

Keg fill air release

Compressed air

Beer in

Fan

Peltier

Chillerplate

Picture 5.

Working principle of the appliance

- To understand the appliance better hereby a short description of the working principle.

- Beer, the Beer is stored in a plastic bag inside the Keg, see picture 5.

- The Beer only comes in contact with the tube connector and never with the appliance.

- When the tap unit and tube connector are connected on the Keg and the Keg is placed in the appliance, the Keg present switch will be activated.

- Once the appliance is activated after approximately 10 seconds you will hear a pump running.

- The task of this pump is to fill the space between the plastic bag and the walls of the Keg with air and create an overpressure situation (Overpressure ± 1500 mBar).

- Through the over pressure around the plastic bag (comparable like you squeeze into the plastic bag) the Beer will be pressurized (sort of) as well.

- By pulling the tap handle the tube connector hose will become opened and the Beer will flow out of the plastic bag via the tube connector in to the glass.

- After this cycle the pump will start running to go back into the overpressure situation like described before.

- When the Keg present switch has been actuated also the cooling process (Peltier element) will be started and display functions will become visible.

- The temperature will be measured by a NTC located in the Keg present plunger and indicated on the display.

- The volume indication measurement is based on the principle of a pressure drop measurement, measured by a pressure sensor.

- When pouring Beer, the pressure in the KEG will decrease, the amount that the pressure will decrease in a period of time will be calculated through the system.

- The result of this calculation will be indicated on the display.

- The volume indication steps are dived in 4 steps of 25 %.

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