Operation - Viking VK800 Technical Data Manual

The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
areas only, never in areas subject to freezing. Use a dehydrator of adequate volume capacity when fixed temperature releases
are installed on pneumatic release lines with pressurized air. Fixed temperature releases subject to mechanical damage must be
protected with a sprinkler guard.
6. After installation, the entire release system must be tested. The test must be conducted to comply with the installation standards.
Make sure the release has been properly tightened. If a thread leak occurs, normally the release must be removed, new pipe-joint
compound or tape applied, and then reinstalled. This is due to the fact that when the joint seal is damaged, the sealing compound
or tape is washed out of the joint. Remove plastic protective bulb shields AFTER there no longer is a potential for mechanical
damage to the operating elements of the fixed temperature release. To remove the bulb shields, simply pull the ends of the
shields apart where they are snapped together. THE BULB SHIELDS MUST BE REMOVED FROM THE FIXED TEMPERATURE
RELEASES BEFORE PLACING THE SYSTEM IN SERVICE!

5. OPERATION

During fire conditions, the heat-sensitive liquid in the glass bulb expands, causing the bulb to shatter, releasing the pip-cap and seal-
ing spring assembly. This causes an opening in the pilot line and releases the pressure (air, nitrogen, or water), allowing the deluge
system or preaction system to operate.
6. INSPECTION, TEST AND MAINTENANCE
NOTICE: THE OWNER IS RESPONSIBLE FOR MAINTAINING THE FIRE-PROTECTION SYSTEM AND DEVICES IN PROPER OPERAT-
ING CONDITION. FOR MINIMUM MAINTENANCE AND INSPECTION REQUIREMENTS, REFER TO NFPA 25 STANDARD THAT DE-
SCRIBES CARE AND MAINTENANCE OF SPRINKLER SYSTEMS. IN ADDITION, THE AUTHORITY HAVING JURISDICTION MAY HAVE
ADDITIONAL MAINTENANCE, TESTING, AND INSPECTION REQUIREMENTS THAT MUST BE FOLLOWED.
1. Fixed temperature releases must be inspected on a regular basis for corrosion, mechanical damage, obstructions, paint, etc. The
frequency of inspections may vary due to corrosive atmospheres, water supplies, and activity around the device. Adequate heat
must be maintained around the fixed temperature release and release piping system.
2. Fixed temperature releases that have been field painted, caulked, or mechanically damaged must be replaced immediately. Any
fixed temperature release showing signs of corrosion shall be tested and/or replaced immediately as required. Fixed temperature
releases that are 20 years old shall be tested and/or replaced immediately as required. Consult accepted installation standards
(e.g., NFPA 25), approving agencies, and Authorities Having Jurisdiction, as different minimum testing periods may be required.
Fixed temperature releases that have operated cannot be reassembled or re-used, but must be replaced. When replacing fixed
temperature releases, always use new units.
3. Nothing should be hung from, attached to, or otherwise obstruct the travel of heat to the fixed temperature release from any
point within its listed area of coverage. Immediately remove all obstructions or, if necessary, install additional fixed temperature
releases.
4. When replacing existing fixed temperature releases, the system must be removed from service. Refer to the appropriate sys-
tem description and/or valve instructions. Prior to removing the system from service, notify all Authorities Having Jurisdiction.
Consideration should be given to employment of a fire patrol in the effected area.
a. Remove the system from service, relieving all pressure (air, nitrogen, or water) on the release line piping.
b. Drain water from hydraulic release lines and remove any moisture present in pneumatic release lines.
c. Using the special wrench (Part No. 10896), remove the old fixed temperature release, and install the new unit. Care must
be taken to ensure that the replacement unit has the proper temperature rating. A fully stocked sprinkler equipment cabinet
should be provided for this purpose.
d. Place the system back in service and secure all valves. Check for and repair all leaks.
5. Sprinkler systems that have been subject to fire must be returned to service as soon as possible. The entire system must be in-
spected for damage and repaired or replaced as necessary. Sprinklers and fixed temperature releases that have been exposed to
corrosive products of combustion or high ambient temperatures, but have not operated, should be replaced. Refer to the Authority
Having Jurisdiction for minimum replacement requirements.
7. AVAILABILITY
Viking products are available through a network of domestic, Canadian, and international distributors. See the Viking Corp. Web site
for your closest distributor or contact The Viking Corporation. Viking Technical Data may be found on The Viking Corporation's Web
site, located at http://www.vikinggroupinc.com. The Web site may include a more recent edition of this Technical Data page.
8. GUARANTEE
For details of warranty, refer to Viking's current list price schedule or contact Viking directly.
Form No. F_051091 18.10.25
TECHNICAL DATA
P65
MICROFAST HP
FIXED TEMPERATURE
RELEASE VK800
Replaces Form No. F_051091 Rev June 15, 2007
Page 4 of 4
(Added P65 Warning.)