Ansul R-102 Installation And Maintenance Manual

SECTION 4 – SYSTEM DESIGN
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 4-67
R-102 Restaurant Fire Suppression Manual
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements – 3.0 Gallon System
1. The maximum length between the start of the rst branch
line and the start of the last branch line must not exceed
24 ft (7.3 m). When the supply line is split, the combined
total of both legs of the supply line (from the start of the
rst branch line to the start of the last branch line) must not
exceed 24 ft (7.3 m). See Figure 4-134.
2. The total length of all branch lines must not exceed 36 ft
(10.9 m). See Figure 4-134.
3. Use a 3/8 in. union to connect the tank adaptor to the 3/8 in.
supply line.
4. A maximum of two nozzles are allowed per duct branch line.
5. The requirements of the following table must not be
exceeded:
3.0 GALLON SYSTEM
Duct Plenum Appliance
Requirements Supply Line Branch Line Branch Line Branch Line
Pipe Size 3/8 in. 3/8 in. 3/8 in. 3/8 in.
Maximum Length 40 ft 8 ft 4 ft 12 ft
(12.1 m) (2.4 m) (1.2 m) (3.6 m)
Maximum Rise 6 ft 4 ft 2 ft 2 ft
(1.8 m) (1.2 m) (0.6 m) (0.6 m)
Maximum 90° 9 4 4 6
Elbows
Maximum Tees 1 2 2 4
Maximum Flow 11* 4 2 4
Numbers
* Exceptions:
1. Twelve flow numbers are allowed in any one tank for duct and plenum protection only.
2. Twelve flow numbers are allowed with any one tank using only two-flow appliance nozzles.
3. Twelve flow numbers are allowed with any one tank using only three-flow appliance nozzles.
Special Instructions:
1. Twelve flow numbers are allowed when four Dean Industries GTI Gas Fryers are protected at low proximity as shown in Figure 4-66 on Page 4-32. The discharge piping must be
as shown in Figure 4-67 on Page 4-32.
2. For certain McDonald’s applications, 11.5 flow numbers are allowed when using a combination of one 2W duct nozzle, one 1/2N electrostatic precipitator nozzle,
one 1N plenum nozzle, and four two-flow appliance nozzles. Contact the Applications Engineering Department for additional information.
2W NOZZLE
1N NOZZLE
1N NOZZLE
230 NOZZLE
245 NOZZLE
1/2N NOZZLE
(BRANCH LINE IN BOLD)
COMBINED LENGTH MUST
NOT EXCEED 36 FT (10.9 m)
000502
SUPPLY
TEE
COMBINED LENGTH OF
BOTH LEGS OF SUPPLY
LINE MUST NOT
EXCEED 24 FT (7.3 m)
3 BRANCH LINES
000266
FIGURE 4-134

Ansul R-102 Specifications

General

Agent	Ansulex Low pH Liquid Fire Suppressant
Activation	Automatic or manual
Temperature Range	32 °F to 120 °F (0 °C to 49 °C)
System Type	Wet Chemical
Application	Commercial Kitchens
Nozzle Coverage	Varies based on hazard and configuration
Detection	Thermal or Manual
Approval	UL 300
Nozzle Types	Appliance specific nozzles
Capacity	Varies by cylinder size
Material	Stainless Steel
Standards	NFPA 17A
Cylinder Sizes	1.5 to 3 gallons