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Siemens LDU11.523A27 230v Burner Control Box
Delivery and Shipping
Delivery and Shipping
Subject to stock availability, orders will be dispatched the same day on an 'Express Next Day' service if ordered before 1pm (UK Mainland).
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Technical Support On Hand
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Siemens LDU11.523A27 230v Burner Control Box
Siemens LDU11.523 A27 - 230V
Siemens Part Number: BPZ:LDU11.523A27
Overview
The LDU11.523 A27 control box valve proving system is designed for use with shutoff valves in connection with gas burners and gas appliances. In the event of inadmissible leakage, the system prevents the burner from starting up. The LDU11.523A27 system conforms to the requirements of EN1643 covering automatic shutoff valves for use with gas burners and gas appliances to EN161.
LDU11.523 A27 230V Gas Proving System Applications
The LDU11.523A27 is designed for automatic gas valve proving (leakage test) based on the pressure proving the principle. It is for use on gas-fired combustion plant with or without vent pipe to atmosphere. In the case of plants with no vent pipe where EN standards apply, the notes are given in «Connection examples without vent pipe to the atmosphere» must be observed.
If the pressure increases excessively during the first test phase called «Test1», or decreases excessively during the second test phase called «Test2», the LDU11.523A27 will inhibit burner startup and initiate lockout. In that case, the lockout reset button will light up to indicate the fault. Remote indication of the fault is also possible. A program indicator, which stops whenever a fault occurs, indicates which of the valves is leaking. The LDU11 can be reset either on the unit itself or via an electric remote reset facility.
Features
- t3 (Filling the test space): 5s
- t4 (Evacuating the test space): 5s
- Supply Voltage: 230VAC
- IP Rating: IP40
- Operation Temperature: -20 - +60 °C
- Mounting Position: Optional
- Weight: Approx. 1kg
- Base: AGM11
Siemens LDU Dimensions
| Control Box | Height | Width | Depth |
|---|---|---|---|
| LDU11.523A27 230V | 123mm | 103mm | 103mm |
All orders are processed within one business day (excluding weekends and holidays) after receiving your order confirmation email. Once your order has been shipped, you will receive a further email notifying you that it has been shipped.
Domestic Shipping Rates Parcels up to 20kg - £15 to UK mainland only (excludes Northern Ireland, Southern Ireland and the Channel Islands)
Parcels over 20kg - £65 to UK mainland only (excludes Northern Ireland, Southern Ireland and the Channel Islands) Shipping rates to Northern Ireland, Southern Ireland and the Channel Islands will be calculated and displayed at checkout.
International Shipping Rates All international shipping rates will be calculated and displayed at checkout. Your order may be subject to import duties and taxes (including VAT), which are incurred once a shipment reaches your destination country. Comtherm Ltd is not responsible for these charges if they are applied, and your responsibility as the customer.
Collection
If you would like to collect your order, please select collection at checkout, and your order will be prepared and ready for pick up within one hour.
Our collection hours are:
8am – 4:30pm Monday-Thursday
8am – 3pm Fridays
How do I check the status of my order?
When your order has shipped, you will receive an email notification from us, which will include a tracking number you can use to check its status. If you haven't received your order within two days of receiving your shipping confirmation email, please get in touch with us at sales@comtherm.co.uk with your company name and order number.
Refunds and Returns
We accept returns up to 30 days after delivery, if the item is unused and in its original condition, and we will refund the full order amount minus the shipping costs for the return.
In the event that your order arrives damaged in any way, please email us as soon as possible at sales@comtherm.co.uk with your order number and a photo of the item's condition. We address these on a case-by-case basis but will try our best to work towards a satisfactory solution
If you have any further questions, please do not hesitate to contact us at spares@comtherm.co.uk.
Payment & Security
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