Dimplex Unvented Water Heater installation manual Wiring, Fitting Immersion Heaters

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Dimp-15278-SCx_Instructions 31/3/06 9:32 am Page 7

SECONDARY CIRCULATION

CONNECTION DIAGRAM

Fig.3

2 PORT VALVE + 3 PORT MID POSITION

 

VALVE (Y-PLAN) SYSTEM

Fig.5

GUIDANCE LAYOUT ONLY

E

N

L

2 * 2 PORT (S-PLAN) VALVE SYSTEM

 

 

 

GUIDANCE LAYOUT ONLY

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.4

 

 

ROOM

 

GY

1

3

2

L

N

E

HTG

DHW

PROGRAMMER

THERMOSTAT

ON

ON

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

2 PORT MID

Br

BI

G

O

GY

4

 

 

 

 

 

 

POSITION VALVE

 

 

 

 

 

 

 

 

 

 

 

 

5

1

2

 

1

2 GY

TWIN

 

 

 

 

 

 

C

C

 

 

 

 

 

 

THERMOSTAT

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

BOILER

 

L

N

E

9

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

MOTOR ON/OFF

 

 

 

 

 

 

Br

BI

G

O

GY

 

 

 

 

 

 

VALVE

 

 

PUMP

 

L

N

E

 

 

 

 

 

 

 

WIRING

All electrical wiring should be carried out by a registered electrical contractor and must conform to the latest IEE wiring regulations

Do not switch the power on until the unit has been filled with water and all wiring has been earthed, see Fig. 4 and 5.

FITTING IMMERSION HEATERS

These are supplied as standard

An ’O’ ring is supplied as the seal and must be fitted against the flange of the element. Take care not to cross thread and DO NOT USE any other type of seal.

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As our heating element is Incoloy 825 and is fitted with a cut- out and thermostat for safety, a non-standard 13/4" boss is fitted to the unit. Replacements can only be obtained from your authorised Dimplex Service Agent.

All our heating elements have a built in manual reset cut-out. This will operate if the immersion heater thermostat fails.

WARNING: Ensure that the immersion heater thermostat is set at 60 degrees Celsius.

FITTING THE THERMAL CUT-OUT &

PRIMARY CONNECTIONS

The motorised valve supplied and the thermal cut-out (Hi limit stat) must be fitted to the primary flow. Use compression fittings only.

Operation of the cut-out and motorised valve

To comply with BBA regulations and to prevent the temperature reaching 100 degrees Celsius the thermal cut-out supplied must be fitted.

The thermal cut-out is wired in series to the cylinder thermostat. When the thermal cut-out senses an abnormal rise in temperature in the primary flow the electrical supply to the motorised valve will be cut, and the valve will be in the closed position thus cutting of the primary water from the boiler to the indirect coil in the cylinder. If this occurs it must be reset manually. If the thermal cut-out operates check the cylinder stat and / or boiler stat.

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Contents Dimplex Dimplex Water Heater Specifiers Guide Connecting the Water Supply SCx PerformanceSecondary Circulation Check Water Pressure & Flow RatesFitting Immersion Heaters WiringFitting the Thermal CUT-OUT Primary Connections External Expansion Vessel Optional Worked Example of Discharge Pipe SizingGuidance in the Event of a Problem Problem SolvingSpares PART/COMPONENT References

Unvented Water Heater specifications

The Dimplex Unvented Water Heater is a cutting-edge solution for modern water heating needs, providing efficient and reliable hot water without the complications of traditional tank systems. This innovative device is designed to deliver a continuous supply of hot water, catering to domestic and commercial applications alike.

One of the standout features of the Dimplex Unvented Water Heater is its capacity to store and deliver hot water at high pressures. This means users can enjoy powerful showers and effective taps without the fluctuations often experienced with older systems. The heater is available in various capacities, allowing it to be tailored to meet the specific hot water demands of any household or facility.

The technology behind the Dimplex Unvented Water Heater includes a highly efficient heating element, which ensures quick recovery times and lower energy consumption. With advanced insulation techniques, the heater minimizes heat loss, thus enhancing overall efficiency. This not only helps to reduce energy bills but also contributes to a more environmentally friendly solution.

Safety is a top priority in the design of the Dimplex Unvented Water Heater. It features built-in safety systems, such as pressure relief valves and thermal cut-outs, to protect against overheating and excessive pressure, ensuring peace of mind for users. Additionally, the unit is easy to install, favoring a compact design that can fit into various settings, making it suitable for both new installations and retrofitting to existing systems.

Another characteristic worth noting is the user-friendly interface. The Dimplex Unvented Water Heater often includes an onboard control panel, allowing users to set and monitor temperatures easily. Some models may come with smart technology integration, enabling remote operation and management through mobile devices.

Maintenance is also simplified with the Dimplex Unvented Water Heater, as it is designed for easy access to components when servicing is required. This helps ensure longevity and optimal performance over time.

In summary, the Dimplex Unvented Water Heater stands out for its efficiency, safety features, and advanced technology, making it a smart choice for anyone looking to upgrade their hot water system. Robust, reliable, and designed with user convenience in mind, this water heater meets the demands of contemporary lifestyles seamlessly.
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