Inta ZERO114 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
Zero Anti-Freeze Valve
ZERO001, ZERO114 & ZERO28
Installation and Maintenance Instructions

© Intatec Ltd 2023 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 1¼" M x M connections ZERO114
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 2023 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
82 41
G1 or G1¼
Ø28
76
ZERO001- ZERO114 ZERO28
Olive
Compression
nut
Vaccum breaker
Temperature
cartridge
ZERO001,
ZERO114
or valve for
ZERO28

© Intatec Ltd 2023 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.
Important: When fitting/installing a heat pump system or components it is essential that the
correct insulation is used and properly sealed to reduce the heat loss from the system,
maintaining the system efficiency.
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.
The Zero anti-freeze valve should be properly insulated and sealed to reduce heat loss. Only
the vacuum breaker and discharge point should be exposed.
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.
Most installations only require one anti-freeze valve, located outside and at the lowest point in
the system.
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.
If a second valve is required, Inta recommend leaving at least 10 cm
between the valves to avoid water discharging onto the lower valve.
>1
5cm

© Intatec Ltd 2023 4
Installation Continued
When installed outdoors, the Zero antifreeze valve must be protected from rain, snow and
direct sunlight.
Inta recommend placing a small cover / hood with 1 open face over the vacuum break. This
should prevent interference or debris while still permitting air flow.
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.
Where the heat pump is elevated so the pipework goes down into a U shape (as shown below),
this would then require 2 anti-freeze valves to completely drain all the pipework and system.
ûûûû

© Intatec Ltd 2023 5
Maintenance
Vacuum Breaker Replacement
In the event of a malfunction, the vacuum
breaker can be removed.
Checking the Vacuum Breaker
In the event of a malfunction, or as part of a
planned maintenance programme the vacuum
breaker can be removed.
Using a 20mm A/F spanner remove the
vacuum breaker from the anti-freeze valve
body.
Using a suitable sized spanner remove the
cover from the vacuum breaker body.
Remove the sealing washer.
Invert the vacuum breaker body and the
plastic vacuum cap should fall out.
If it does not fall out it indicates that the
vacuum breaker has not been operating
correctly and the vacuum breaker needs to be
replaced.
If the plastic vacuum cap does fall out check it
and the sealing washer for damage and
inside the body for debris, if present wash
away with clean water.
Re-assemble and refit into the anti-freeze
valve.
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 replacement components.
Body
Sealing washer
Plastic vacuum cap
Cover

© 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 14-02-23
Please leave this Manual for the User
To activate your product warranty please visit
www.intatec.co.uk
and click on Product Registration