CEX Zip Electronic Instantaneous Water Heaters
- Constant supply of hot water at exactly the temperature selected
- Suitable for use with pre-heated water from solar heating systems.
- Will accept incoming water temperatures up to 70C
- Supplies hot water to one or more outlets
CEX Zip Electronic Instantaneous Water Heaters
CEX Zip Electronic Instantaneous Water Heaters available in Oversink or Undersink versions.
This instant water heater is ideal for supplying single or multiple outlets. The exact temperature is maintained even with fluctuating water inlet pressures and temperatures. Both the under sink and over sink water heaters are suitable for pre-heated water supplies say from a solar heated system, the CEX will accept incoming water temperatures up to 70C.
The CEX range of instant water heater are available for over and under sink use, please see options. The CEX has optional power settings from 7.2kW to 9.kW this can easily be set on installation.
The CEX range of instant water heaters enables the user to select two pre-programmed temperature settings, the exact temperature will be maintained even with fluctuating water inlet pressures and temperatures
- The CEX can provide a constant supply of hot water to one or more outlets
- The heating element switches on automatically when the minimum flow rate is exceeded and switches off when flow rate reduces below the minimum
- Regulates power consumption electronically depending on supply water temperature and flow rate to achieve the required outlet temperature
- Also regulates power consumption based on outlet temperature to ensure precise temperature control irrespective of fluctuations in voltage and water pressure
- Power rating can be selected at the time of installation
- Bare wire heating system ensures fast response for immediate, energy efficient delivery of hot water
- The required outlet temperature can be set via two touch sensitive membrane keys within the range 30°C to 55°C with digital display of the selected temperature
- Enables selection of two pre-programmed temperature settings
- Provides visible indication when the heating power available is unable to achieve the required temperature at the selected flow rate
- Maximum inlet temperature of 70°C is suitable for use with pre-heated water from solar heating systems
| Model | CEX-O | CEX-U | ||
|---|---|---|---|---|
| Application | Over-sink | Under-sink | ||
| Power rating | 7.2kW / 9.6kW(1) | 7.2kW / 9.6kW(1) | ||
| Rated current | 30A (7.2kW) / 40A (9.6kW) | 30A (7.2kW) / 40A (9.6kW) | ||
| Power supply | 1/N/PE ~240V AC | 1/N/PE ~240V AC | ||
| Hot water (l/min) Maximum = 25°C | 4.1 (7.2kW) / 5.0(2) (9.6kW) | 4.1 (7.2kW) / 5.0(2) (9.6kW) | ||
| Rated volume (litres) | 0.3 | 0.3 | ||
| Rated pressure | 1 MPa (10 bar) | 1 MPa (10 bar) | ||
| Element type | Bare wire heating system IES | Bare wire heating system IES | ||
| Required specific water resistance | > 1100 & cm @ 15°C | > 1100 & cm @ 15°C | ||
| Maximum inlet temperature | 70°C | 70°C | ||
| Switch on flow rate (l/min) | 2.0 | 2.0 | ||
| Maximum flow rate (l/min) | 5.0(2) | 5.0(2) | ||
| Pressure loss @ 2.5 l/min | 0.2 bar | 0.2 bar | ||
| Pressure loss @ 9.0 l/min | 1.3 bar(3) | 1.3 bar(3) | ||
| Temperature setting range | 30°C – 55°C | 30°C – 55°C | ||
| Maximum weight (kg) | 2.70 | 2.70 | ||
| Dimensions H x W x D (mm) | 294 x 177 x 108 | 294 x 177 x 108 | ||
| Water connections | ½” BSP | ½” BSP | ||
| Protection class | IP25 | IP24 | ||
We have the power and mains water supplies but we do not have the waste pipe installed?
Most water heater installations require a waste facility, however it still may be possible to install the water heater please enquire!
I live in a low water pressure area, is this going to be an issue?
The water heater ideally requires mains water pressure to ensure flow rates are maintained, however it still may be possible to run this unit from other low pressure supplies, please enquire
The water supply we have available is from a header tank above is this suitable?
Yes this may be possible, as long at the minimum water pressure required by this particular water heater is met, please see product specifications for minimum water pressures
How many outlets will this water heater supply?
It is advised that you only supply two outlets maximum. The water heater will work with multiple outlets but not simultaneously, the water flow rates and desired temperature would not be achieved!
What is the warranty of the CEX Instantaneous water heater?
One year manufacturer’s onsite parts and labour warranty!
What is the power rating?
The CEX instant water heater has a power range of 7.2kW to 9.6kW, the power rating can easily bet set on installation!
What is the temperature range of this water heater?
The temperature range of the CEX water heater is 30C to 55C, this is adjusted via two touch pad membrane keys and the exact temperature will be shown digitally!
Can this water heater be programmed to remember my desired temperature?
Yes the CEX enables you to select up to two pre-programmed temperature settings!
Is this water heater suitable to supply a sink?
The CEX instant water heater will supply enough hot water for a sink, expect flow rates in the region of ~ 5l/min, based on a water inlet temp of 6C ~ 14C!
Is this water heater suitable to supply a bath?
No the CEX instant water heaters will NOT supply enough hot water quickly enough to fill a bath tub, expect flow rates in the region of 5 l/min. To supply a bath tub using an instant water heater you would need a three phase unit, please see the Zip DBX27kW instantaneous water heater 3 phase!
Can this water heater work with a solar heated water supply?
Yes the CEX instant water heaters are ideal for preheated water from a solar heating system. This water heater will work with incoming water temperatures of up to 70C. The flow sensor recognizes when hot water is being used and allows the heated water to pass through and will only heat the water if it drops below the set temperature!
Can the CEX instant water heater be installed under a cupboard?
Yes there is the option for under sink water heaters please see options!
Can this water heater be installed upside down?
No the CEX water heater must be installed the correct way up, there are options for under and over sink water heaters!
Is this water heater suitable to be used in a hair salon for hair washing?
Yes the CEX instant water heater will supply enough hot water for a hair washing. The flow rates required for each basin would be 2ltrs a minute therefore this instant water heater will supply >2 basin comfortably!
I have a 13amp power supply will this water heater be suitable?
No the CEX Instantaneous water heater on setting 7.2kW requires a 30amp and the 9.6kW setting requires a 40amp independent power supply!
Can you fit a UK plug to this water Heater?
No both the under and over sink water heater must be installed by a competent electrician and for safety reasons they must be wired to an independent power supply!What is the water proof rating of this water heater?
The under sink is IPX4 and the over sink is rated at IPX5!
Will this water heater be suitable for wireless control?
Yes this water heater can be used with a wireless control see Zip ZL016 optional wireless controller!
Will this water heater be suitable for use with a shower?
Yes this water heater can be used to supply a shower!
Can i use this water heater with mixer taps or shower mixers?
Yes, this water heater is suitable for use with mixer taps or shower mixer supplies!
Can this water heaters be used with sensor taps?
Yes both the under and over sink water heaters can be used to supply sensor taps however the taps must have spray head nozzles fitted!
Can the CEX Instantaneous water heaters be used with open taps?
No the CEX instantaneous water heaters are not suitable for open taps, they should always be used with spray head taps!
What size cable do I need for the CEX Instantaneous water heaters?
The CEX instant water heaters require 10mm2 cable (minimum)
I have very high water pressure will this affect the water heaters performance?
The CEX Instantaneous water heater will control fluctuating water pressures ranging from 0.9bar up to 6bar if you are unsure of your cold water supply pressure you can ask your water supplier to check this for you free of charge!
I don’t have a mains water supply can I use this water heater if the water supply is from a header tank?
No the CEX range of instantaneous water heaters requires mains pressure only with a minimum inlet pressure of 0.9bar!
I have a problem with lime scale will this water heater be suitable?
The CEX ranges of water heaters are suitable for soft and hard water areas!
Do you have spare parts for the ZIP CEX instantaneous water heater?
Yes we have spares for the ZIP range of Instantaneous water heaters, please call our sales team for any spare part enquiries!
What pipe fittings do I need for the CEX Instantaneous water heater?
The pipe fittings are standard UK 15mm (½” BSP) pipe fittings. We supply fittings to enable a quick and easy installation!
I have limited space, can I have the CEX Instantaneous water heater fitted in a different room to my supply point?
We would recommend that the closer to the supply point the better however you can fit both the under and over sink water heater in an adjoining room or cupboard. We would recommend a maximum of 2 meters away from the intended supply point!
Can I install the CEX Instantaneous in an outbuilding that is not heated?
We do not recommend that the CEX Instantaneous water heater is installed in a room where it may be subject to freezing!
If I have a problem with this water heater who do I contact?
Please call ZIP on 0800 077 8302 or CNM customer services team and we will help you with any problems you may have with the water heater!
Our Delivery Charges and times are explained:
Delivery Charges
All deliveries have a standard charge of £7.99 + VAT up to 20kg. Where stated, certain products are delivered FREE of charge (mainland UK only*). Check the description of the desired product and if it says free delivery then you will not be charged for delivery*
Extra Charges
Where the weight is over 20kg we reserve the right to charge more dependent on product type and delivery postcode, our customer service team will be in touch and inform you of any extra charges before we despatch.
Delivery Times
All products will have a delivery time stated in their description. Next Working Day - these products will be delivered Next Working Day if ordered before 12.00, or in certain circumstances up until 4:00 pm. Please call if you require a Next Working Day and we will try our best to get it to you. Certain products will state within 48hrs, within 3 Days or within 5 days. These products will be delivered within the time stated. If you require delivery on a certain day please put this in the comments and we will aim to deliver on that day.
Certain products such as radiators are delivered after 5 working days, when purchasing a radiator please put in the desired delivery date which is 5 working days after ordering. In some cases, stock permitting, we can get radiators out sooner. Please call or put in the customer comments if you need something urgently and we will try our best.
Saturday Deliveries
We can arrange for a Saturday delivery for certain products, please call 01977 663331 for more details.
Please note: Although we will do our utmost to deliver your product in the time stated we cannot be held responsible for any unforeseen delays. Please do not book a plumber, electrician, etc until you have received the goods as we will not be held responsible for their time. Please read our terms and conditions for further details.
additional charges may be applicable dependent on your location please double-check with our customer service team