Classeq Hydro 750 vs Classeq Duo 750

Classeq Hydro 750 vs Classeq Duo 750 Review

In this comparison review of the Classeq Hydro 750 vs Classeq Duo 750. We shall discuss the differences of these two commercial dishwashers in detail, and hopefully helping make a decision which machine is right for it’s establishment.

In the sections below i’ll guide you through 3 sections, helping determine which integral components or type of commercial dishwasher you require.

Sections

1: The differences between the two Classeq dishwashers.

2: How to determine which integral components are essentially required.

3. Conclusion.

 

Classeq Hydro 750

Classeq Hydro 750 vs Classeq Duo 750

Classeq Duo 750

Classeq Hydro 750 vs Classeq Duo 750

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Section 1:

These Classeq dishwashers are equipped with a 500mm rack/basket size. They both share the same power configurations of either, 230V/AC 2.98KW, 6.84KW single Phase or 415V/AC 6.84KW 3 Phase. The 2.98KW version is accomplished by removing links from the wiring lomb therefore bypasses two of the three elements in the rinse boiler making them redundant. The power configuration is selected when ordering from Classeq but can always be changed by one of our engineers on request.

The difference between the  Classeq Hydro 750 and Classeq Duo 750 commercial dishwashers.

Firstly these two Classeq front loading dishwashers are built from the same 500mm basket size design. The difference being the Duo cabinet is double skinned and the Hydro’s is single skinned. A double skinned cabinet helps to reduce noise and heat lose.

The Classeq Duo 750 comes all singing all dancing. Including a drain pump, rinse booster pump, chemical pumps and a WRAS approved Type A air gap. Also giving an option of ordering with an integral water softener for an extra cost.

The Classeq Hyrdo 750 is simply a basic version of the Duo, using the same major essential components. Such as the wash pump, heating elements and chemical pumps.

Classeq provide an option ordering the Classeq hydro 750, with a Drain pump if required. Classeq also give the option to fit the Hydro with a rinse booster pump which includes a WRAS approved Type A air gap. That having said the rinse booster pump comes at a price. And at this point in my opinion you’re better off ordering the Duo 750, as you will get more bang for your buck.

The Classeq Hydro 750 dozen’t have the option for an integral water softener. So if you’re in an area where one is required, then its essential to account for room for an external water softener.

Key Points

Classeq Hydro 750
Width 550 mm
Depth 625 mm
Depth – Door open 985 mm
Height 825-845 mm
Rack size Square 500 mm
Maximum plates per rack 18
Door opening height 360 mm
Maximum component height 345 mm
Operating level 70db 
Weight – Net/Gross 60/65 kg
Rinse booster pump Optional
Built in detergent dispenser Yes
Built in rinse aid dispenser Yes
Double skinned door Yes
Double skinned cabinet No
Maximum racks per hour – water @ 50°C 20
Cycle Times 3 min
Water connection – BSP 3/4
Water inlet height from floor level 40 mm
Required water pressure 2 bar
Required water flow 8 Ltrs/min
Drain type Optional
Drain size 22 mm
Operating voltage 230V/50Hz/1 – Yes 400V/50Hz/3 – optional
Amps required – 1 Phase – Water fed @ 40°C 30 Amps
Amps required – 1 Phase – Water fed @ 10°C 30 Amps
Total connected load – Water fed @ 40°C 6.84 kW
Total connected load – Water fed @ 10°C 6.84 kW
Temperature interlock Yes (can be removed)
Quick start mode Yes
Wash tank heating 2.0 kW
Rinse boiler heating – Water fed @ 40°C 6.0 kW
Rinse boiler heating – Water fed @ 10°C 6.0 kW
Wash pump size 0.74 kW
Wash pump capacity 380 Ltrs/min
Wash tank capacity 19 Ltrs
Wash tank operating temperature 55°C
Rinse boiler capacity 7 Ltrs
Rinse boiler operating temperature 85°C
Rinse water consumption @ 2 bar 3.25 Ltrs
Max/Min stand pipe height from floor 600mm/0mm
Max/Min water pressure 6 bar / 1 bar
Minimum water flow 8 Ltrs
Classeq Duo 750
Width 570 mm
Depth 625 mm
Depth – Door open 985 mm
Height 825-845 mm
Rack size Square 500 mm
Maximum plates per rack 18
Door opening height 360 mm
Maximum component height 345 mm
Operating level 70db 
Weight – Net/Gross 60/65 kg
Rinse booster pump yes
Built in detergent dispenser Yes
Built in rinse aid dispenser Yes
Double skinned door Yes
Double skinned cabinet yes
Maximum racks per hour – water @ 50°C 20
Cycle Times 3 min
Water connection – BSP 3/4
Water inlet height from floor level 40 mm
Required water pressure 2 bar
Required water flow 8 Ltrs/min
Drain type Pumped
Drain size 22 mm
Operating voltage 230V/50Hz/1 – Yes 400V/50Hz/3 – optional
Amps required – 1 Phase – Water fed @ 40°C 30 Amps
Amps required – 1 Phase – Water fed @ 10°C 30 Amps
Total connected load – Water fed @ 40°C 6.84 kW
Total connected load – Water fed @ 10°C 6.84 kW
Temperature interlock Yes (can be removed)
Quick start mode Yes
Wash tank heating 2.0 kW
Rinse boiler heating – Water fed @ 40°C 6.0 kW
Rinse boiler heating – Water fed @ 10°C 6.0 kW
Wash pump size 0.74 kW
Wash pump capacity 380 Ltrs/min
Wash tank capacity 19 Ltrs
Wash tank operating temperature 55°C
Rinse boiler capacity 7 Ltrs
Rinse boiler operating temperature 85°C
Rinse water consumption @ 2 bar 3.25 Ltrs
Max/Min stand pipe height from floor 600mm/0mm
Max/Min water pressure 6 bar / 0.5 bar
Minimum water flow 8 Ltrs

Section 2:

This section will help determine the essential components required, for a correctly operating dishwasher.

Do you need a drain pump?

A drain pump is required if the Drain services, is higher than the required hight.

For a gravity drain to work properly on these Classeq dishwashers. The connection for the waste must not exceed the maximum hight of, 40mm higher than the base which the dishwasher stands on. As shown in the drawing below.

drainp1

A Drain Pump is essential if the waste connection exceeds the maximum hight, for a gravity drain to work correctly.

Do you need a Rinse Pump?

Classeq dishwasher’s, without a integral rinse booster pump, require a minimum of 2 bar mains water pressure.

Insufficient water pressure, will not provide enough force to propel the Rinse arms to spin inside the dishwasher. Resulting in a ineffective rinse.

In addition dishwashers with a integral Rinse booster pump, require a minimum of 0.5 bar of mains water pressure.

Testing Mains Water Pressure

Using a pressure gauge to test the mains water supply is always advised when wanting your dishwasher to produce the very best results.

The pressure gauge is connected to the Washing Machine Valve (water supply), at the point where the dishwasher will be connected to. To imitate the effecters of busy service periods, i would recommend opening as many taps in the restaurant, bar, kitchen etc and letting them run whilst a reading is being taken. This is because a reduction in pressure will accure when multiple taps are in use, and if the pressure drops below 2 bar then it is not enough pressure.

A Rinse Pump is essential with mains water pressure lower than 2 bar.

Do You Need a Water Softener?

 

Water contains dissolved mineral compounds and much of the tap water in our region is hard in character. The level of water hardness is dependent on the type of rocks or rivers from which it is collected. When a dishwasher boils hard water it can form fur or scale, inside the machine and on the dishes etc. Also prevent chemicals from doing there job properly. The scale itself is calcium carbonate (chalk) which has come from the water. It can be removed by an iron exchange with sodium, potassium through a water softener.

The UK map below indicates the concentrate of minerals in water supplies. If you’re in areas highlighted in blue a softener is essential.

 

Water hardness map

The best way to apprehend if you need a water softener is to either, consult your water board or undertake a water hardness test.

These strips are dipped into your mains waster supply for 3 seconds, then matched against a colour chart. This will indicate the hardness of your water supply.

If you’re located in a hard water area it is good practice to test the water exiting your softener regally. This will insure that your softener is regenerating properly. Indicating weather its running effectively and not left for long periods, in-between regeneration cycles acting redundant. e.g If the regeneration cycle is set for a Monday, test Friday and so on, every so often.

The reason being you may be consuming more water volume through the softener than you’re aware. And you may have to regenerate the softener more regally to compensate.

The Classeq Duo 750WS with integral softener automatically regenerates, and has a light indicating when it is due for salt refilling.

 

Section 3:

Conclusion

So the Classeq Hydro 750 vs Duo 750 so which one will it be?

Most of all this solely depends on what you need for the dishwasher to perform correctly.

Firstly if you’re on a budget then i would recommend the model Hydro 750 as long as your site provides these key factors:

  • Water pressure of a minimum of 2 bar.
  • Waste pipe is the correct hight for gravity drainage.
  • If a water softener is required, and room for an external softener is accounted for.

If the above is correct but a drain pump is required i would recommend the model Hydro 750DP.

In addition and the above is insufficient you will require all the other functions or would just like the better machine. I would recommend the Duo 750. Providing room for an external softener if needed is accounted for.

Finally if you require an integral softener which will save space i would recommend the Duo 750WS.

 

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