The Specialist Merchant
The information contained on this page was correct at date of issue. Fitting dimensions are provided as a guide only. Some variation may occur due to manufacturing tolerances.
We pursue a policy of continuing improvement in design and performance of products and so reserve the right to change specifications without prior notice.
Version number 1.0
This manual applies to Center Domestic Potable Expansion
Vessels 2L, 5L, 8L, 12L, 18L, 24L & 35L.
The Center Domestic Potable Expansion Vessels are
compliant with EU Directive 2014/68/EU & WRAS Approved.
Certification can be made available on request.
1. General
Items included are one Center Expansion Vessel (A) and one operating /
maintenance manual (B). Information on the manufacturer, year of construction
and other technical data is displayed on the product label (A).
Safety
Install and operate Center Expansion Vessels only if the vessel is free from
visible damage.
In order to keep within operating parameters, appropriate accessories must be fitted.
Disregard of this manual may lead to defects in the vessel, impairment of its
function, personal injury or damage to property.
To ensure a constant pressure in the mains water supply to the Center Expansion
Vessel, a pressure reducing valve must be fitted upstream in the pipeline after the
water meter.
2. Installation
Center Expansion Vessel 2 – 35 Litres must be mounted with the water connection
pointing downwards (C).
A wall mounting kit (part number 597815) is available to aid installation and is
suitable for use with 2-24L vessels.
1. Apply (PTFE) synthetic tape (D) to the connection of the vessel in order to
achieve a good seal (do not use hemp under any circumstances).
2. In case of potable water installations fit the vessel in the cold-water feed pipe.
First Use
1. Shut off the water pipe and remove pressure from the water system.
2. Set the pre-charge of the expansion vessel 0.2 bar lower than the set pressure of
the pressure reducing valve (please see the vessel label for the factory pre-charge):
• Remove the cover (E) and the valve cap (F)
• Measure the pressure (P).
• If the pressure is too high at the gas top-up valve (S), release some gas. If the
pressure is too low, top it up, e.g. with a nitrogen canister.
3. Put the valve cap (F) and safety cap (E) in again.
4. Re-open the water pipe.
5. Check the seals on tightness.
Installation and Operating Instructions
Domestic Potable
Expansion Vessels
597802/597803/597804/597805/597806/597807/597808 5 year
warranty
(fig.1)
(fig.2)
(fig.3)
(fig.4)
