Inta BUFF25 User manual

Intatec Ltd
Airfield Industrial Estate
Hixon
Staffordshire
ST18 0PF
Tel: [phone]
Fax: [phone]
email: [email protected]
web: www.intatec.co.uk
In this procedure document we have endeavoured to make the informa-
tion as accurate as possible.
We cannot accept any responsibility should it be found that in any
respect the information is inaccurate or incomplete or becomes so as a
result of further developments or otherwise.
© Intatec Ltd 2023
Insulated Buer Vessel
BUFF25, BUFF50, BUFF80 & BUFF100
Installation and Maintenance Instructions

© Intatec Ltd 2023 1
Introduction
This installation document has been prepared for the Inta range of insulated buffer vessels, 25 to
100 litre capacity.
Buffer vessels are designed to store a volume of water to help optimize system efficiency and
reduce pump short cycling. Buffer vessels also help to provide hydraulic separation between
circuits.
Buffer vessels should be sized according to the requirements of the heat pump system.
We recommend that the installation of any Inta product is carried out by an
approved installer.
It is recommended, especially in hard water areas, that a limescale reduction device, such as the
ActivFlo or ActivFlo lite, be fitted to reduce the risk of calcium deposits forming.
Products
Description Part Code
Buffer vessel - 25 litres, wall mounted with insulation shell BUFF25
Buffer vessel - 50 litres, floor standing with insulation shell BUFF50
Buffer vessel - 80 litres, floor standing with insulation shell BUFF80
Buffer vessel - 100 litres, floor standing with insulation shell BUFF100
Technical Specification
Max. inlet pressure -static: 4 bar
Max. inlet temperature: 95˚C
Fluid type: water
Glycol mixture: up to 50%
Outer shell: steel
Insulation thickness: 41 mm

© Intatec Ltd 2023 2
Dimensions
Volume
litres ØD H L E B C
25 290 925 480 160 G¾ G1
50 360 1008 580 160 G¾ G1
80 469 891 365 160 G1¼ G1¼
100 469 1071 545 160 G1¼ G1¼
L
E
H
L
C
C
ØD
B
B
25 litre with bracket
for wall mounting

© Intatec Ltd 2023 3
Preparation for installation
Access: Ensure safe access to allow the transportation of the buffer vessel to it's intended
location and adequate lighting is available.
Tools: Ensure the correct tools and consumables are available for the installation before
commencing.
Handling and Lifting: Manual handling of large or heavy equipment may present a risk of
injury. A full risk assessment should be carried out detailing the appropriate equipment to be
used and the method of handling.
Weight: Ensure that the wall or floor is structurally sound to support the filled weight of he
buffer vessel and associated fittings and pipework.
Freezing: Provision must be made to protect the buffer vessel against freezing conditions
including when not in use and not fully drained.
Storage: The buffer vessel should remain in it's packaging until you are about to commence
installation. The buffer vessel should be stored vertically in a dry area.
Installation
Ensure that there is sufficient space around the buffer vessel to fit and access the pipe fittings
in the 4 side connections.
If wall mounting the 25 litre buffer vessel ensure that the 4 fixing screws are of sufficient size and
length to hold the buffer secure.
Stand the buffer vessel vertically on a level floor and connect to 2 flow pipes and 2 return pipes
as shown.
The connection where is it shown in the top of the vessel can be used to vent air when filling the
system and can be fitted with a manual valve to act as an air vent (not supplied).
Tighten the joints and ensure they are water tight.
When floor standing it is advisable to provide additional support to prevent excessive movement
of the buffer vessel.
Commissioning
Before filling check that the expansion vessel in the system is charged to the designated pressure.
Open the main water supply to the buffer vessel.
Flush the system until all the air is expelled, air vents should be fitted at the highest points in the
system for this purpose.
The connection at the top of the vessel can be used to aid filling and air venting.
The system should now be full of liquid, check all joints for signs of leakage.
Inhibitor should be added as specified.
The system is now ready for use.

© Intatec Ltd 2023 4
Typical Application
Maintenance
No maintenance as such is required.
Periodically check for signs of leakage from the buffer vessel or from the joints.
Check the outer casing for signs of damage or damage to the insulation.
An occasional wipe to remove dust from the casing is recommended.
If there are signs of leakage or damage the buffer vessel should be replaced.
Heat
source
Pump
Buffer vessel
Pump
To
the heating system

© Intatec Ltd 2023 5
Notes:

© Intatec Ltd 2023 6
Notes:

Intatec Ltd
Airfield Industrial Estate
Hixon
Staffordshire
ST18 0PF
Tel: [phone]
Fax: [phone]
email: [email protected]
web: www.intatec.co.uk
E & O.E
© Intatec Ltd 2023 12-07-23
Please leave this Manual for the User
To activate your product warranty please visit
www.intatec.co.uk
and click on Product Registration