SECTION 5 – INSTALLATION INSTRUCTIONS
UL EX3470 ULC EX3470
PAGE 5-6 REV. 11 2014-SEP-01
R-102 Restaurant Fire Suppression Manual
AGENT DISTRIBUTION HOSE INSTALLATION
INSTRUCTIONS (Continued)
General Requirements (Continued)
4. Maximum of two Agent Distribution Hoses are allowed in the
supply line. However, the Agent Distribution Hose can only
be used at the castered appliance.
5. Maximum of two Agent Distribution Hoses are allowed in
the branch line. An acceptable installation scenario would
be providing separate protection of two (side-by-side) appli-
ances, each with its own Agent Distribution Hose and tether,
supplied from the same appliance branch.
6. The Agent Distribution Hose is to only be used in the distri-
bution piping of a single 1 1/2 or 3 gal (5.7 or 11.4 L) tank or
two manifolded 3 gal (11.4 L) R-102 extinguishing systems
or larger systems using combinations thereof. However, the
Agent Distribution Hose is never to be used to manifold two
3 gal (11.4 L) tanks.
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 (Part No. 436228). 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 5-14.)
4. All existing distribution pipe and fitting limitations must be
observed and followed. Each flex distribution hose used
is to be considered as an equivalent length of 3/8 in. pipe
when calculating the acceptable length of allowable distribu-
tion pipe. Each hose is 5 ft (1.5 m) long.
5. All hose-to-pipe connection fittings are to be oriented in a
vertical down position.
6. The hose connections must be positioned below an eleva-
tion where the hose could be exposed to the radiant or
convected heat generated by normal cooking operations
(such as the horizontal plane of appliance’s cooking
surface), or to heat from appliance exhaust. As a minimum
height, the hose connection shall be no lower than 30 in.
(762 mm) from the floor. The distribution piping shall be
supported and secured per local plumbing practices.
7. Hose ends are to be offset 6 to 8 in. (152 to 203 mm) center
to center of fittings (See Figure 5-9) to maximize hose life
expectancy and facilitate appliance movement. With the
appliance in its normal operating position, check the hose
bend to make certain the bend is not less than a 3 in.
(76 mm) bend radius (6 in. (152 mm) diameter).
6-8 IN (152-203 mm) OFFSET
CENTER TO CENTER
PIPE (SUPPLIED ONLY WITH
HENNY PENNY FRYER NOZZLE KIT
(PART NO. 434455))
PIPE (NOT
SUPPLIED IN KIT)
FLEX
HOSE
TETHER
OVERHEAD VIEW
APPLIANCE
W
A
L
L
FIGURE 5-9
007828
Restraining Cable Installation
Important: A Restraining Cable shall always be permanently
attached to the appliance and wall directly behind the appliance
when the Agent Distribution Hose is installed. Removal of this
cable shall only occur when the Agent Distribution Hose is not
installed to the appliance.
See Figure 5-10 for mounting the Restraining Cable to the wall.
See Figure 5-11 for mounting the Restraining Cable to the back
of an appliance.
4 SELF TAPPING
SHEET METAL
SCREWS
WALL
STUD
SHEET METAL
COVERED
WALLS
WALL
MOUNT
BRACKET
SCREW
EYE BOLT
RESTRAINING CABLE – WALL-MOUNTED OPTION
FIGURE 5-10
008088
BACK OF
APPLIANCE
NYLON
LOCK NUT
WASHER
WASHER
NUT
EYE
BOLT
RESTRAINING CABLE – APPLIANCE-MOUNTED OPTION
FIGURE 5-11
008089