A range of compact water dispensers, available in the following operational types:

• Direct Chill Chilled & Ambient (Low-Pressure Tank System)
• Direct Chill Chilled, Ambient & Hot (Low-Pressure Tank System)
• Direct Chill Chilled & Ambient
• Direct Chill Chilled, Ambient & Hot
• Direct Chill Chilled, Ambient & Sparkling
• Direct Chill Chilled, Hot & Sparkling

The B4 model is available as a countertop with a matching base cabinet in three colours.

All Models
All models are self-contained machines with robust steel framed cabinets and attractively injection moulded plastic front, side and top panels. An IEC Power Lead is supplied for connection to the IEC socket located at the rear of all models (An additional Schuko type is supplied for the European market).

Chilled
Water is fed into the insulated cold tank under mains pressure. We strongly recommend a Pressure Reducing Valve is fitted to all supplies to regulate the pressure to 3.5 bar/355 KPat. The cold tank is chilled via the evaporation coil of the capillary controlled refrigeration compression system. The cold temperature is thermostatically controlled via the adjustment screw on the cold thermostat. This is factory set and it is not necessary to adjust in most cases (see Controls).

Ambient
Water bypasses the cold tank for the ambient dispense.

Sparkling
Water is chilled as it passes through the Direct Chill coil. It is pumped under pressure into the carbonator which is fitted within the Direct Chill coil. The carbonator is also level controlled. The Deep Sparkle effect occurs through saturation with CO2.

All models also incorporate a leak detection device within the unit which disables the dispense function until rectified.

Hot
Hot water is provided by a hot water tank with an integrated heater element. The water is supplied directly into the tank under the pressure as connected into the back of the unit. The water fills the tank and hot water is dispensed by displacement. The water flow is controlled by a solenoid.

Direct Chill
Borg & Overström Direct Chill utilises innovative technology to chill water instantly. We recommend this system for more demanding environments because of its optimum dispense performance and unrivalled hygienic qualities. Superior to the gravity fed Reservoir system, Direct Chill technology chills water on demand for the ultimate drinking experience.

Allow adequate space to install the appliance.
Ensure the services are in place prior to installation.

Water supply – 3/4″ BSP Shutoff valve.
Engineer to connect reducing fittings to suit installation kit.

Chilled
Chilled On/Off Switch: at upper rear of machine, switches cooling operation on/off.*
Cold Thermostat: at rear of machine.
Chilled Button: Press to dispense cold water.
Chilled LED: Indicates chilling application is switched on.
10A Fuse: On rear of machine, integral with IEC socket.

*All Direct Chill variants incorporate an auto-fill system

Ambient
Ambient Button: Press to dispense ambient water.

Sparkling
Carbonation On/Off switch: Switches sparkling operation on/off.
Sparkling Button: Press to dispense sparkling water.
Sparkling LED: Indicates sparkling application is switched on.

Hot
Hot On/Off Switch: The hot water heating mode is controlled by a switch on the back of the unit, next to the cooling mode switch.
Hot Thermostat: regulated by a pre-set, non- adjustable sensor on the tank.
Hot Button (incorporates safety lock): Press once to unlock. Press again to dispense hot water. (Note: Machine will revert to locked after 5 seconds if dispense is not activated.)
Hot LED: Indicates hot application is switched on.

All models are designed to fit straight onto the top of the base cabinet to create a floorstanding model. 

Ensure the feet are in the nesting positions. 

The Door Panel is hinged and fastened with Magnetic Catches. The cabinet can be levelled using the adjustable feet. Service entry is at the back of the machine. 

Every Base Cabinet is supplied with a Level Sensor Kit, comprising of: 

• A water container.
  
• Sensor unit (c/w 2 no. CR3032 batteries). (Requires some assembly – see Operation
• Drip Tray with Drainage Outlet.
• Interconnection kit between unit and cabinet – see Base Unit Exploded Diagram

Check all parts are present.

Unscrew lid.

Fit both batteries and refit lid.

Exchange the drip tray.

Connect the drainage tubing that is pre-fitted down the front left hand side of the cabinet.

Level sensor positioned in container.

NOTE: A WARNING TONE WILL SOUND WHEN THE WATER RISES (3 BEEPS EVERY
15 SECONDS REPEATED). UPON EMPTYING THE CONTAINER THE WARNING TONE
WILL STOP. CONTINUAL BEEP INDICATES LOW BATTERY POWER.

NOTE: Water supply to the product must be within 1.5 – 3.5 bar.
If the product is installed where the mains water pressure is greater than 3.5 bar then a pressure regulating valve must be installed prior to the water inlet bulkhead. If the product is installed where the mains water pressure is less than 1.5 bar then a pressure boost pump must be installed prior to the water inlet bulkhead.
Failure to comply with this will invalidate your warranty.

Connect and turn on the water supply. Then connect the power supply.

To avoid damage do not turn on the cold or hot power switches until water flows out of the machine. (If applicable)

Press and hold the cold water button until water comes out.

All hot & sparkling tanks must be purged of air by holding the corresponding button. Do not switch the hot system on until tank has been purged.

On sparkling models turn on the carbonation switch on the back of the unit.

The relevant indicator lights will be lit.

Flush through 5 litres of clean water through each water option immediately after installing and before use.

When the cold water switch is turned on, the cold water indicator will be lit.

The temperature of cold water can be set from 4c to 11c. Allow up to 1 hour for the water to reach its minimum temperature.

Attach the regulator to the disposable CO2 bottle, ensuring the regulator is closed.

Connect the assembled CO2 bottle and regulator to the machine using 1/4 inch pipe.

After completing the water installation, turn on the sparkling power switch and the pump will run. Do not open the regulator valve until the carbonated switch has been turned on.

We recommend between 3.5 – 4 bar. Do not exceed 4 bar pressure.

Flush through approximately 10 litres of sparkling water. Check and adjust the CO2 pressure accordingly.

Following installation, it will be necessary to leave the machine for up to 1 hour for the initial chilling cycle to occur.

• Leave a space no less than 15cm between the wall and dispenser.
• When combined with base cabinet – use wall bracket kit for high traffic areas.
• Keep the machine away from sunlight, heat and moisture.

Please make sure the machine is completely disconnected from the electrical supply before carrying out any maintenance work.

Turn off the water supply.

To drain the Direct Chill tank, remove the caps on the back of the machine. We recommend they are refitted immediately upon draining being completed.

Borg & Overström’s recommended sanitisation schedule is a minimum of 6 months for a filter change and internal water pathway sanitisation using Sterizen® 30 Internal Water Cooler Sanitiser (Order code: 461025) and a minimum weekly for external
cleaning, using Sterizen® Virus Killer Surface Sanitiser (Order code: 500033).

NOTE: Failure to use sanitising products and processes approved by Borg & Overström will invalidate your warranty. Before beginning the sanitation process please ensure that water is turned off at the mains and refer to the sanitisation liquid MSDS documentation for further information. Use Sterizen® hand gel and ensure gloves are worn.

Briefly press cold/ambient dispense buttons to release
internal water pressure from the machine.

Remove the existing cartridge.

Add 25 ml of Sterizen® 30 Internal Water Cooler Sanitiser fluid to a clean and empty service filter cartridge.

Connect the service cartridge to machine.

Turn on incoming water, allow service cartridge/doser to fill.

Dispense approx. 500ml water using the cold button. Repeat with sparkling button if present. Briefly press the ambient button too.

Leave the solution inside machine for sanitisation (minimum 5 minutes) while thoroughly cleaning the machine externally, pay particular attention to the dispense faucet and buttons.

If a Waste Overflow System is fitted, empty this and flush through with a small amount
of sanitisation fluid if needed. Remember to include the drip tray and connecting pipe work.

When the external cleaning (after a minimum of 5 minutes) is completed, flush 10 litres of water through the machine using the cold, sparkling and ambient buttons.

Turn off water and remove the service filter. Retain service filter for reuse.

Fit new filter. Turn on incoming water supply.

Pre-flush the new filter to waste using the ambient button (and sparkling button if present) until the water appears clear and is free of air. Flush through a small amount of water to check all functions.

NOTE: If this machine is equipped with a leak detection device. When leaking is detected the dispense operation will be cut off automatically.

To reset:

Unplug the machine.

Locate the source of leakage and rectify.

Locate the detection probe which can be found in the bottom rear left hand corner. Dry the probes and internal area with a dry cloth.

If enhanced Leak Detector is fitted as optional extra: locate the Leak Detector valve.

Reset the red lever (push it in).

Reconnect the power to machine and test operation.

If leak detector is fitted as optional extra, reset the red lever (push it in)

Switch off the Carbonation System switch on the back of the unit.

Press and hold the Sparkling water dispense button until all water is expelled.

The tank is empty of sparking water when only CO2 is being released.

Ensure to release the Sparkling water button and take care to avoid releasing excess amounts of CO2 gas.