Everwell CP-MBP Mute Box Condensate Pump

In the box

• [Item 1] Assembled mute box
• [Item 2] 6mm inner diameter (i/d) vinyl tube
• [Item 3] Assembled Inline reservoir, including:
• [Item 3a] lid & sensor cable
• [Item 3b] float
• [Item 3c] filter
• [Item 3d] reservoir
• [Item 4] 1.5m length of 6mm i/d vinyl tube
• [Item 5] Inlet tube
• [Item 6] 2 x self-adhesive velcro strips
• [Item 7] Power cable
• [Item 8] 4 x 200mm x 5mm cable ties

*NOTE: You will need several metres of 9mm outer diameter (o/d) x 6mm i/d vinyl tube.

Technical Data

• Power supply: 100-240V AC 50/60Hz <4W
• Max. flow: 20L/h @ 0 head
• Max. water temperature: 70°C
• Discharge tube: 6mm ID
• Class: II appliance
• Sound level: <19dB(A) @ 1m
• Rated: continuous
• Max. recommended head: 20m
• IP Protection: IPX5
• Max. suction lift: 2m
• Thermal protection: [✔️]
• Max. unit output: 20kW / 68000Btu/h
• Fully potted: [✔️]
• Safety switch: 3A Normally closed
• CE marked: [✔️]
• Dimensions (L x W x H): 147mm x 36.3mm x 34mm

Typical Performance

A graph illustrates the pump's performance. The Y-axis represents 'METRES HEAD' (from 0 to 25), and the X-axis represents 'LITRES PER HOUR' (from 0 to 35). The performance curve shows that the maximum head of 20 meters is achieved at a flow rate of 2 litres per hour, and the head decreases as the flow rate increases, reaching 0 meters at 20 litres per hour.

Product Safety

• CAUTION: The MUTE BOX Pump has been evaluated for use with water only.
• WARNING: Risk of electric shock. This pump has not been investigated for use in swimming pool or marine areas.
• Do not run this pump dry.
• Always ensure the metal magnet in the float is facing upwards.
• Always ensure the reservoir is sitting flat and horizontal.
• The means for isolation must be incorporated in the fixed wiring in accordance with wiring regulations.
• The Pump is ideal for most working and living environments. It is not recommended where the environment is oily or particularly dusty.
• Ensure the pump is disconnected from the mains supply before carrying out any adjustments or servicing.
• Acceptable for indoor use only.
• Non-submersible pump.
• The supply cord cannot be replaced. If the cord is damaged, this pump must be discarded.

Installation

1. Ensure the float is positioned in the reservoir with the magnet uppermost, the filter is in place, and the lid is clipped firmly onto the reservoir.
2. Secure the reservoir horizontally using velcro strips. For the inline reservoir, use the inlet hose to connect firmly to the drainage pipe.
3. Fit the breather tube to the reservoir lid.
4. Note the direction of water flow [➡️].
5. Install the pump drive unit above the ceiling where possible. Options include:
   • Above ceiling
   • Inside conduit
   • Under condensate drain tray
6. Push the 9mm o/d x 6mm i/d tube onto the reservoir and the pump. Secure with cable ties. Ensure the total length is under 2 metres.
7. Connect your 9mm o/d x 6mm i/d vinyl discharge tube to the outlet barb on the MUTE BOX and secure with a cable tie.
8. Channel the discharge tube to an appropriate drain, avoiding restrictions (maximum recommended length: 20m).
9. A high-level alarm switch should be wired into the cooling signal wire to prevent the continued operation of the air conditioning unit in the event of the pump failing.

IMPORTANT: This diagram is an example of how the pump could be installed and is therefore for reference only. All pump units must be installed by qualified engineers, who have assessed the set-up of the individual a/c unit.

Wiring diagrams illustrate connection methods:

• For live connections less than 3 amps.
• Via a suitable contactor relay (normally open) where the live connection is above 3 amps.
• For scenarios where interruption of live or neutral connections leads to communication problems.

Connections are shown for the indoor unit, outdoor unit, pump unit, and a contactor relay (normally open).

Servicing

This pump requires maintenance. Every six months, remove and clean the reservoir, filter, and float thoroughly. It is recommended to do this in Spring and Autumn, using a chemically compatible anti-bacterial wash. Ensure the float is replaced with the magnet facing upwards. Additional inline filters are available if required.

Trouble Shooting

Fault: Pump runs all the time [❌]

1. Is the float positioned with the magnet uppermost?
2. Is the reservoir lid (sensor) located firmly onto the reservoir, with the float inside and around the sensor column?
3. Is there sludge inside the reservoir preventing the float from resting on the bottom? (Clean using an anti-bacterial wash if necessary).

Please note: If you notice air in the pipe between the reservoir and the pump during operation, you may have a siphoning problem. Refer to the 'Preventing Siphoning' section. The pump will only switch off when the float is at the bottom of the reservoir.

Fault: Pump stops and starts and makes a loud noise. [❌]

The water is siphoning back through the pump. Refer to the 'Preventing Siphoning' section.

Fault: Pump runs but does not pump any water.

1. Are there any air leaks in the pipe running to the pump?
2. Check that the reservoir and inlet tube are free of sludge and debris.

Fault: Pump isn't operating at all.

1. Is power reaching the pump? Is it correctly wired? Is the voltage correct?
2. Is the pump very hot? A thermal cut-out may have been activated to protect the pump. This will automatically reset once the pump has cooled down.