intatec ZERO001 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
information 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 2022
Zero Anti-Freeze Valve
ZERO001 & ZERO28
Installation and Maintenance Instructions

© Intatec Ltd 2022 1
Introduction
The Inta Zero is a unique anti-freeze valve designed to protect heat pump systems operating
with water.
Designed to discharge when the system water temperature goes down to 3˚C preventing ice
from forming in the heat pump circuit that could cause breakdown or costly damage to the
system.
The Inta Zero has been designed and engineered to avoid negative influences from low
ambient temperatures by directly positioning the element in the system water flow, permitting
accurate system discharge only when its truly needed.
A protective ring has been included in the construction to prevent system debris clogging the
operation of the valve.
Double O-rings and reduced surface friction treatment on the operating member also ensure
correct operation and reliability time after time.
These instructions cover the installation, operation and maintenance. Please read the enclosed
instructions before commencing the installation of this product, please note;
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 water softener such as the ActivFlo or
ActivFlo lite be fitted to reduce the risk of calcium deposits forming.
Products
Zero anti-freeze valve 1" M x M connections ZERO001
Zero anti-freeze valve 28mm ZERO28
Technical Specification
Max. inlet pressure - static: 10 bar
Medium: Water
Sensitivity: ±1˚C
Opening temperature: 3˚C
Closing temperature: 4˚C
Threaded connections: BS EN ISO 228
Compression connections: BS EN 1254-2
Materials
Valve body: Brass BS EN 12165 CW617N
Spring: Stainless steel
Temperature element: Wax
Internal seals: EPDM peroxide
Internal parts: Brass BS EN 12164 CW617N

© Intatec Ltd 2022 2
Dimensions
Check Components
Before commencing remove all components from packaging and check each component with
the contents list.
Ensure all parts are present, before discarding any packaging. If any parts are missing, do not
attempt to install your Inta Zero anti-freeze valve until the missing parts have been obtained.
58
70 41
G1
Ø28
76
ZERO001 ZERO28
Olive
Compression
nut
Vaccum breaker
Temperature
cartridge
ZERO001
or valve for
ZERO28

© Intatec Ltd 2022 3
Preparation for installation
Flush the water supply pipes thoroughly prior to installation. Do not allow debris, PTFE tape or
any metal particles to enter the system.
Important: All plumbing is to be installed in accordance with applicable codes and
regulations.
Installation
The Zero anti-freeze valve must only be installed in a vertical position, with the outlet facing
downwards, to allow the draining water to flow out free from obstructions.
The Zero antifreeze valves must be installed outdoors, where the lowest temperatures can be
reached if the heat pump is not operating.
It is recommended to install the antifreeze valves on both the flow and return pipes, otherwise
water may be left in one pipe which could then freeze and damage the system.
The valve(s) must also not be placed close to heat sources which could interfere with their
function.
For the valve(s) to work properly, keep the system under pressure at all times, even when
the Zero antifreeze valve is draining.
We recommend at least 15cm clearance between the valve
and the ground as discharged water could freeze and hinder the
operation of the valve.
The discharge from anti-freeze valves must be collected in a
suitable drain and routed to a suitable collection point.
Keep a distance of at least 10cm between the antifreeze valves
as shown in the diagram, this should prevent water from the higher
valve discharging onto the valve below.
The valve must be free of insulation for the system to work
properly.
When installed outdoors, the Zero antifreeze valve must be
protected from rain, snow and direct sunlight.
>15cm
>10cm

© Intatec Ltd 2022 4
Installation Continued
Do not make any trap connections.
If the shape of the connection pipes has the potential to create a trap effect (as shown below),
part of the pipe will not be able to drain and frost protection will no longer be ensured.
û
û
û
û

© Intatec Ltd 2022 5
Maintenance
Vacuum Breaker Replacement
In the event of a malfunction, the vacuum
breaker can be removed.
Using a 20mm A/F spanner remove the
vacuum breaker from the body, check of
correct operation and if damaged replace
with a new.
Thermostatic Cartridge Replacement
In the event of a malfunction, the thermostatic
cartridge can be replaced.
Using a 26mm A/F spanner remove the
cartridge from the body and replace with a
new one.
Replacement Components
Replacement components are available from
Inta.
Fit only genuine Inta replace components.

© Intatec Ltd 2022 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 2022 21-09-22
Please leave this Manual for the User
To activate your product warranty please visit
www.intatec.co.uk
and click on Product Registration