GRASL TA Owner's manual

Technical Instructions
Thermal release valve TA
Please read through these „technical instructions“ carefully and
fully. Work on these devices must only be carried out by qualified
personnel.
Meaning of the symbols
Safety instructions, must be observed!
The disregarding of these instructions can lead to personal
injury and / or material damage.
Advice, the non-compliance with these instructions or the
technical data shall lead to the loss of rights under guaran-
tee.
Correct,
This is how it should be done.
Incorrect,,
This is how it should not be done.
Correct and proper use
The thermal valve TA is used as control SHEV systems. By in-
put command by bursting a thermo bulb or by electrical/pneumatic
signal, the energy of a CO2bottle suited for SHEV systems is re-
leased.
When installing SHEV systems below an installation height of 2,5m
from the floor, or from the next access level, suitable devices must
be provided to prevent danger to people (crushing and pinching
hazard). Follow the corresponding guidelines, rules and norms,
e.g. EN 14351 and ASR A1.6. Do not allow children to play with
the device or its regulation and/or control devices, including win-
dow controls.
General notes
The thermal valve is not suited for use in highly corrosive
environments (e.g.: thermal spas, waste management in-
dustry, etc.).
Always close the connections and protect against dirt and
humidity.
We recommend the use of cutting ring fittings (DIN 3861).
Our connection threads are designed for screw-in stud
threads R1/8” according to EN 10226. A suitable sealant is
recommended.
Figure 1: Thermal valves (symboli-
cally)
Grasl Pneumatic-Mechnik Gmbh
issuedate: August 18, 2020
04030DAT0000-E
page 1/5 Europastraße 1, 3454 Reidling, Austria
www.graslrwa.at, [phone]

According to the prEN 12101-9 standard, the TA must be
installed inside the SHEV system (e.g. on the mounting, on
the curbe of skydome, etc.).
The installation height of the TA can be limited in some
national standards (e.g. TRVB 125).
The TA must not be used to fasten decoration, cables, or
other construction products.
Do not mount the TA directly over a heat source (stoves,
etc.).
The volume of the pipeline/device connected to the ”SHEV
OPEN” output must be at least 6 times greater than the
volume of the CO2-bottle.
When handling this product, always use suitable PPE –
personal protective equipment (e.g. protective gloves,
safety boots) as protection against sharp and pointed
edges, pointed piercing needle, falling objects, and as pro-
tection against cold burns.
When working on the TA, the work area under the valve
must be secured against hazards from falling parts. A suit-
able PPE must be provided for unavoidable activities below
the work area.
Installation
Observe the following before the installation:
•Check the transport box for damage and unauthorized open-
ing.
•The completeness of the delivery.
•Check the valve for transport damages.
If incomplete or defective, a complaint must be lodged im-
mediately. The transport box must not be exposed to the
elements (e.g.: rain).
When installing the thermal valve, observe the national standards.
The thermal valve may not be exposed to extreme temperatures
and weather and it is not suited for outdoor storage and assembly.
The TA must be mounted to all provided mounting holes, with
suitable fastening material, mounted on a firm and stable surface.
It is important to ensure that the heat flow, in compliance with the
specified angles, can arrive unhindered to the thermo bulb.
Connect the respective connections, according to the connection
diagram, with suitable screw connections and pipes.
Attach pipelines tension-free.
Figure 2: connecting electromagnet
Grasl Pneumatic-Mechnik Gmbh
issuedate: August 18, 2020
04030DAT0000-E
page 2/5 Europastraße 1, 3454 Reidling, Austria
www.graslrwa.at, [phone]

Commisioning
See commissioning of the respective TA data sheet.
If the CO2bottles are not securely fastened, there is a risk
that they might catapult during piercing.
The thermal valve is not equipped with devices that provide
protection against crushing at the SHEV system.
Commisioning of the release lever
Before inserting the CO2-bottle, check the position of the
piercing needle. There is a risk that the CO2bottle might be
triggered unintentionally and, as a result, the SHEV system
might move by accident.
Normal operation
When the thermo bulb bursts, glass fragments are created.
The position of the TA should be chosen so that, the broken
glass poses no danger to the environment (e.g.: vegetable
department in the supermarket).
SHEVS release
•Thermal release: When the burst temperature is reached
the glass bulb, the valve is released.
•Optional Electrical release: Possible by applying the nom-
inal voltage (see technical data).
•Optional Pneumatic release: Possible by applying the min.
control pressure (see technical data).
When released, the screwed-in CO2bottle get pierced and the
CO2will be connected to the output.
Restarting operation/reset
CO2-bottle
Only verified CO2bottles au-
thorised by us and meeting the
requirements of the standards
„EN 12205“ or „ADR 2003“ may
be used.
The CO2-bottle must be ad-
justed for the thermo bulb
release temperature and
shouldn’t be damage, espe-
cially in area of the bursting
disc.
Thermo bulb
Only thermo bulbs that are au-
thorized by us and approved
by national standards may be
used.
Always wear suitable PPE (e.g.: protective gloves, safety
boots) when handling this product.
Once released, the thermal valve must be restarted by au-
thorised personnel.
Piercing the CO2bottles will significantly cool down the CO2bot-
tles and all pipes and components in the nearness through which
the CO2flows. Touching these components for extended periods
might cause cold burns.
1. Slowly unscrew the bottle, until
you hear a venting noise.
2. Wait until all pressure has been
released from the bottle.
3. Fully turn out the bottle.
4. For additional points, refer to
commisioning of respective TA
data sheet.
Grasl Pneumatic-Mechnik Gmbh
issuedate: August 18, 2020
04030DAT0000-E
page 3/5 Europastraße 1, 3454 Reidling, Austria
www.graslrwa.at, [phone]

Maintenance
Maintenance must be performed
•at least yearly
•and according to the national, legal regulations,
•or if the TA valve has released.
If the TA is no longer functional, it must be replaced com-
pletely. It is not permitted to modify or remove any compo-
nents of the TA. This would impair the safe operation of the
TA in which case it may no longer be used.
Possible consequences may include failure to function, re-
lease of CO2, risk of explosion of the CO2-bottles.
If necessary, the O-ring, fixings, screw connections, CO2
bottles and thermo bulbs can be obtained.
Disconnect all power supplies when carrying out mainte-
nance work/troubleshooting on the SHEV system to pre-
vent unintended operation. This can be achieved by turning
out the CO2bottle. In addition, each additional CO2-bottle
in the system or the SHEV system Power supply, be inter-
rupted.
Check the following as part of the maintenance:
Check functionality
•piercing needle for damage
•check possible O-ring for damage and regrease it
•connection cable for damage
•function of the cable relief in the connecting plug
•secure attachment of TA
•valve, connections, pipes and CO2bottles for corrosion or
damage
•CO2-bottles for falling below the engraved total weight
•thermo bulbs for damage
•whether the heat flow of the TA is prevented (decoration,
shelves, air conditioning, etc.)
•whether there are foreign objects on the TA or its pipeline
(decoration, cables, etc.)
•prepare for operation -> see commissioning of the respective
data sheet
Malfunction
A malfunction is present if:
•the CO2bottles have not been
inserted
•the thermo bulb have not been
inserted
In the event of a malfunction, arrange
for a service by a qualified company
immediately.
Grasl Pneumatic-Mechnik Gmbh
issuedate: August 18, 2020
04030DAT0000-E
page 4/5 Europastraße 1, 3454 Reidling, Austria
www.graslrwa.at, [phone]

Functional test TA
In accordance with random sampling procedure, in the event of
doubt or if functionality is not given.
•prepare for operation –> see commissioning of the respec-
tive data sheet
•optional ventilation: apply pressure to the ventilation line
OPEN/CLOSE, check whether the SHEV system opens and
closes
•destroy thermo bulb
Disassembling the bulb by loosening the bulb screw
will damage the valve!
•CO2bottle is pierced, SHEV system must open and check
valve for leaks (note venting)
•remove the CO2bottle and check whether the SHEV system
remains open
•optionally, pressure at CLOSE, check whether the SHEV
system remains open
•prepare for operation -> see commissioning of the respective
data sheet
•optionally, pressure at CLOSE, check whether SHEV system
closes
Decommissioning/disassembly
Decommissioning/disassembly sequence:
1. remove CO2-bottle and separate it from other energy
sources
2. remove pipelines from the valve
3. remove valve
Decommissioning/disassembly of TA4
1. remove CO2-bottle
2. insert reset tool
3. remove the thermo bulb by loosening the bulb tension screw
Removing the thermo bulb without the reset tool in-
serted will damage the TA4!
4. unscrew the reset tool
5. closing the bottle screw-in thread
6. remove pipelines from the valve
7. remove valve
Disposal
This product is made of steel,
aluminium, non-ferrous metals, plastic
and electronic components.
Dispose of this product in ob-
servance of the national regu-
lations.
Grasl Pneumatic-Mechnik Gmbh
issuedate: August 18, 2020
04030DAT0000-E
page 5/5 Europastraße 1, 3454 Reidling, Austria
www.graslrwa.at, [phone]