SECTION 4 – SYSTEM INSTALLATION
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PagE 4-13
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
PIPE AND NOZZLE INSTALLATION (Continued)
all piping shall be securely fastened by means of pipe hangers
and/or pipe straps. The spacing requirements for hangers/straps
depend on the pipe size being utilized. Refer to the
Spacing
Guidelines Chart
below.
Pipe Hanger Spacing Guidelines
Distribution
Maximum Spacing Distance
Pipe Size
Hanger to Hanger
in.
ft
(m)
1/4
4 (1.2)
3/8
5 (1.5)
1/2
6 (1.8)
3/4
8 (2.4)
a union should be installed in the discharge piping, as close
to the cylinder valve as possible, to permit disconnection and
removal for inspection and service. Dry air or nitrogen should be
blown through the discharge piping to remove chips and other
debris prior to installation of nozzles.
Nozzles shall be installed in accordance with the limitations
described in Section 3
–
System Design. Blow-off caps are
provided for each nozzle. These will prevent dirt and grease
from clogging the nozzle.
INSTALLATION INSTRUCTIONS FOR CASTERED/
MOVEABLE EQUIPMENT USING PYRO-CHEM AGENT
DISTRIBUTION HOSE
CAUTION
The following instructions must be followed in their entirety.
Failure to do so may result in the KITCHEN KNIgHT II Fire
Suppression System not functioning properly due to incorrect
installation.
Critical Installation Requirements
1. Design and installation must be performed by qualified
personnel.
2. The agent Distribution Hose shall not be concealed within
or run through any wall, floor, or partition, and shall not have
any direct exposure to excessive heat or radiant flame from
the cooking appliances.
3. Strong cleaning solutions or chemical substances must not
come in contact with the agent Distribution Hose. These
may include acids, solvents, fluxes with zinc chloride, or
other chlorinated chemicals. In case of contact, rinse down
the agent Distribution Hose with water and dry thoroughly.
4. Contact with foreign objects, sharp edges, wiring, or
substances must be avoided.
5. Bending and flexing of agent Distribution Hose on move-
able appliances (e.g. those factory equipped with casters)
should be limited to pulling and pushing the appliances in
or out for cleaning or maintenance. The hose shall never
be installed or bent tighter than a 3 in. (77 mm) radius (6 in.
(152 mm) dia meter) loop.
6. The agent Distribution Hose must not be kinked, twisted,
or have sharp bends when installed or when equipment is
pulled away from the wall.
7. Make sure that all fittings are tightened properly.
8. adequate means must be provided to limit the movement
of castered appliances. a 36 in. (914 mm) long Restraining
Cable supplied with the agent distribution hose is required
to be used for all castered appliances using the agent
Distribution Hose. (Refer to Restraining Cable Installation
Instructions.)
9. The Restraining Cable requires periodic maintenance to
ensure proper operation.
10. The Restraining Cable must be attached to the wall and
appliance anytime the distribution hose is connected to the
appliance.
11. Do not over-extend the agent Distribution Hose when
moving equipment (for cleaning, maintenance, etc.).
AGENT DISTRIBUTION HOSE INSTALLATION
INSTRUCTIONS
Before proceeding,
CAREFULLY
read all instructions, including
all
CRITICAL INSTALLATION REQUIREMENTS.
General Requirements
1. The agent Distribution Hose (Part No. 434462) (which is
part of Discharge Hose and Tether Kit (Part No. 435982)),
is 1/2 in. (12.7 mm) diameter x 60 in. (1524 mm) long and is
provided with two male NPT swivels for ease of installation.
2. Maximum of six agent Distribution Hoses can be used
in each agent distribution piping network on PCL-460
and PCL-600 systems and a maximum of three agent
Distribution Hoses can be used in each agent distribution
piping network on PCL-160 and PCL-300 systems.
3. agent Distribution Hose can only be used for castered appli-
ances or appliances setting on castered supports.
Installation Requirements
1. agent Distribution Hose must be connected to 3/8 in. NPT
black iron, chrome-plated, or stainless steel fittings. The
connection from hose to fitting requires a 1/2 in. x 3/8 in.
reducing coupling. all agent Distribution Hose connections
must be sealed with pipe tape. When applying pipe tape,
start at the second male thread on the swivel ends of the
hose. Wrap the tape (two turns maximum) clockwise around
the threads, away from the hose end fitting opening.
2. all connections of distribution piping to agent Distribution
Hose for castered appliances, with distribution nozzles
installed/affixed to the appliance, must be located behind
the cooking equipment in an area protected from obstruc-
tions and possible wear or damage.
3. 3/8 in. schedule 40 pipe will need to be run from the hose
connection to the distribution nozzle(s) installed/affixed
to the appliance. Pipe must be installed and adequately
secured at a height at or below the cooking surface of the
appliance. See Figure 4-31.
