Tyco TY2236 - User Manual

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Page 1 of 4 MARCH 2022 TFP403

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IMPORTANT

Refer to Technical Data Sheet

TFP2300 for warnings pertaining to

regulatory and health information.

Always refer to Technical Data

Sheet TFP700 for the “INSTALLER

WARNING” that provides cautions

with respect to handling and instal-

lation of sprinkler systems and com-

ponents. Improper handling and

installation can permanently damage

a sprinkler system or its compo-

nents and cause the sprinkler to fail

to operate in a ﬁre situation or cause

it to operate prematurely.

Scan the QR code or enter the URL

in a web browser to access the most

up-to-date electronic version of this

document. Data rates may apply.

docs.jci.com/tycoﬁre/series-lﬁi-

res-4_9-k-pen-sprinkler-wet

Series LFII Residential

4.9 K-factor Pendent Sprinkler

Wet Pipe Systems

General

Description

TYCO Series LFII Residential 4.9K

Pendent and Recessed Pendent Sprin-

klers (TY2236) are decorative, fast

response, frangible bulb sprinklers

designed for use in residential occu-

pancies such as homes, apartments,

dormitories, and hotels. When aesthet-

ics and optimized ﬂow characteristics

are the major consideration, the Series

LFII Residential Sprinklers (TY2236)

should be the ﬁrst choice.

The Series LFII Residential Sprinklers

are intended for use in the following

scenarios:

• wet pipe residential sprinkler sys-

tems for one- and two-family dwell-

ings and mobile homes per NFPA

13D

• wet pipe residential sprinkler sys-

tems for residential occupancies up

to and including four stories in height

per NFPA 13R

• wet pipe sprinkler systems for the

residential portions of any occu-

pancy per NFPA 13

The recessed version of the Series LFII

Residential Sprinklers is intended for

use in areas with ﬁnished ceilings when

used with one of the following:

•

A two-piece Style 15 Recessed

Escutcheon with recessed adjust-

ment up to 5/8 in. (15,9 mm) from

the ush pendent position.

•

A two-piece Style 20 Recessed

Escutcheon with recessed adjust-

ment up to 1/2 in. (12,7 mm) from

the ush pendent position.

The adjustment provided by either

Recessed Escutcheon reduces the

accuracy to which the pipe drops to

the sprinklers must be cut.

The Series LFII Residential Sprinklers

have been designed with heat sensi-

tivity and water distribution charac-

teristics proven to help in the control

of residential ﬁres and to improve the

chance for occupants to escape or be

evacuated.

Corrosion-resistant coatings, where

applicable, are utilized to extend the life

of copper alloy sprinklers beyond that

which would otherwise be obtained

when exposed to corrosive atmo-

spheres. Although corrosion-resistant

coated sprinklers have passed the

standard corrosion tests of the appli-

cable Approval agencies, the testing is

not representative of all possible cor-

rosive atmospheres. Consequently,

it is recommended that the end user

be consulted with respect to the suit-

ability of these coatings for any given

corrosive environment. The effects of

ambient temperature, concentration of

chemicals, and gas/chemical velocity

should be considered, as a minimum,

along with the corrosive nature of the

chemical to which the sprinklers will be

exposed.

NOTICE

The Series LFII Residential Pendent

and Recessed Pendent Sprinklers

(TY2236) described herein must be

installed and maintained in compli-

ance with this document and the appli-

cable standards of the NATIONAL FIRE

PROTECTION ASSOCIATION (NFPA),

in addition to the standards of any

authorities having jurisdiction. Failure

to do so may impair the performance

of these devices.

The owner is responsible for main-

taining their fire protection system

and devices in proper operating con-

dition. Contact the installing contrac-

tor or product manufacturer with any

questions.

Sprinkler

Identiﬁcation

Number (SIN)

TY2236

TY2236 is a replacement for the TY2234.

Need help?

Do you have a question about the Tyco TY2236 and is the answer not in the manual?

Summary

Technical Data

Approvals

Lists UL, C-UL, and NSF/ANSI 61 certifications.

Maximum Working Pressure

Specifies the maximum allowable working pressure for the sprinklers.

Discharge Coefficient

Provides the K-factor for calculating water flow rate.

Temperature Rating

Indicates the operating temperature ratings for the sprinklers.

Finishes

Lists available surface finishes for the sprinklers.

Physical Characteristics

Lists the materials used for various sprinkler components.

Operation

Describes the mechanism of sprinkler activation due to fluid expansion.

Design Criteria

Outlines installation and hydraulic design requirements per NFPA standards.

Residential Sprinkler Design Guide

Refers to a separate guide for recommendations beyond standard criteria.

System Types

Confirms suitability for wet pipe systems as per UL and C-UL listings.

Ceiling Types

Lists approved ceiling types for installation, per NFPA standards.

Hydraulic Design (NFPA 13 D and 13 R)

Details minimum flow rates for NFPA 13D and 13R systems based on coverage.

Hydraulic Design (NFPA 13)

Specifies design sprinkler requirements for NFPA 13 systems.

Obstruction to Water Distribution

Details compliance with obstruction rules for water flow.

Operational Sensitivity

Specifies required deflector-to-ceiling distance for optimal operation.

Sprinkler Spacing

Defines minimum and maximum spacing requirements between sprinklers.

Installation

General Instructions

Provides essential precautions for sprinkler installation.

Pendent Sprinklers

Details the specific steps for installing pendent sprinklers.

Recessed Pendent Sprinklers

Outlines the procedure for installing recessed pendent sprinklers.

Care and Maintenance

General Maintenance

Covers essential maintenance practices and warnings.

Inspection, Testing, and Maintenance

Highlights owner responsibility for system upkeep per NFPA standards.

Ordering Procedure

Sprinkler Assemblies

Lists part numbers and specifications for ordering sprinkler assemblies.

Recessed Escutcheon

Provides ordering information for recessed escutcheons.

Sprinkler Wrenches

Details part numbers for specific sprinkler wrenches.

Summary

Technical Data

Approvals

Lists UL, C-UL, and NSF/ANSI 61 certifications.

Maximum Working Pressure

Specifies the maximum allowable working pressure for the sprinklers.

Discharge Coefficient

Provides the K-factor for calculating water flow rate.

Temperature Rating

Indicates the operating temperature ratings for the sprinklers.

Finishes

Lists available surface finishes for the sprinklers.

Physical Characteristics

Lists the materials used for various sprinkler components.

Operation

Describes the mechanism of sprinkler activation due to fluid expansion.

Design Criteria

Outlines installation and hydraulic design requirements per NFPA standards.

Residential Sprinkler Design Guide

Refers to a separate guide for recommendations beyond standard criteria.

System Types

Confirms suitability for wet pipe systems as per UL and C-UL listings.

Ceiling Types

Lists approved ceiling types for installation, per NFPA standards.

Hydraulic Design (NFPA 13 D and 13 R)

Details minimum flow rates for NFPA 13D and 13R systems based on coverage.

Hydraulic Design (NFPA 13)

Specifies design sprinkler requirements for NFPA 13 systems.

Obstruction to Water Distribution

Details compliance with obstruction rules for water flow.

Operational Sensitivity

Specifies required deflector-to-ceiling distance for optimal operation.

Sprinkler Spacing

Defines minimum and maximum spacing requirements between sprinklers.

Installation

General Instructions

Provides essential precautions for sprinkler installation.

Pendent Sprinklers

Details the specific steps for installing pendent sprinklers.

Recessed Pendent Sprinklers

Outlines the procedure for installing recessed pendent sprinklers.

Care and Maintenance

General Maintenance

Covers essential maintenance practices and warnings.

Inspection, Testing, and Maintenance

Highlights owner responsibility for system upkeep per NFPA standards.

Ordering Procedure

Sprinkler Assemblies

Lists part numbers and specifications for ordering sprinkler assemblies.

Recessed Escutcheon

Provides ordering information for recessed escutcheons.

Sprinkler Wrenches

Details part numbers for specific sprinkler wrenches.

The TYCO Series LFII Residential 4.9K Pendent and Recessed Pendent Sprinklers (TY2236) are decorative, fast-response, frangible bulb sprinklers designed for use in residential occupancies such as homes, apartments, dormitories, and hotels. They are particularly recommended when aesthetics and optimized flow characteristics are a primary consideration.

Function Description:

These sprinklers are designed to activate in a fire situation, releasing water to control the fire and improve the chance for occupants to escape or be evacuated. The operation relies on a glass bulb containing a fluid that expands when exposed to heat. When the rated temperature is reached, the fluid expands sufficiently to shatter the glass bulb, allowing the sprinkler to activate and flow water.

Important Technical Specifications:

Sprinkler Identification Number (SIN): TY2236 (replaces TY2234).
Approvals: UL and C-UL Listed, Certified to all requirements of NSF/ANSI 61.
Maximum Working Pressure: 175 psi (12.1 bar).
Discharge Coefficient (K-factor): K=4.9 gpm/psi¹½ (70.6 lpm/bar¹½).
Temperature Ratings: Available in 155°F (68°C) and 175°F (79°C).
Finishes: Natural Brass, Pure White Polyester Coated, Signal White Polyester Coated, Jet Black Polyester Coated, or Chrome Plated. Polyester finishes are UL Listed as corrosion-resistant.
Physical Characteristics:
- Frame: Brass
- Button: Copper
- Sealing Assembly: Beryllium Nickel w/TEFLON
- Bulb: Glass (3 mm)
- Compression Screw: Bronze
- Deflector: Bronze
Nominal Make-in: 7/16" (11.1 mm).
Connection: 1/2" NPT.
Deflector-to-Ceiling Distance: 1-1/4 in. to 4 in.
Minimum Sprinkler Spacing: 8 ft (2.4 m).
Maximum Coverage Area: Varies by temperature rating and flow, up to 20 ft x 20 ft (6.1 m x 6.1 m).
Hydraulic Design Criteria (Wet Pipe System):
- For NFPA 13D and 13R systems, minimum required sprinkler flow rates are provided in Table A, based on temperature rating and maximum allowable coverage areas.
- For NFPA 13 systems, the number of design sprinklers is the four most hydraulically demanding. The minimum required discharge from each of these four sprinklers is the greater of the flow rates in Table A or a minimum discharge of 0.1 gpm/ft² over the design area.

Usage Features:

System Types: Intended for use in wet pipe residential sprinkler systems.
Residential Occupancies: Suitable for one- and two-family dwellings, mobile homes (per NFPA 13D), residential occupancies up to and including four stories in height (per NFPA 13R), and residential portions of any occupancy (per NFPA 13).
Recessed Version: The recessed version is designed for use in areas with finished ceilings, utilizing either a two-piece Style 15 Recessed Escutcheon (with up to 5/8 in. (15.9 mm) adjustment) or a two-piece Style 20 Recessed Escutcheon (with up to 1/2 in. (12.7 mm) adjustment). These escutcheons reduce the accuracy required for pipe drops.
Corrosion Resistance: Corrosion-resistant coatings are available to extend the life of copper alloy sprinklers in corrosive atmospheres. However, the suitability of these coatings for specific corrosive environments should be evaluated by the end user, considering ambient temperature, chemical concentration, and gas/chemical velocity.
Installation:
- Pendent sprinklers are installed with the deflector parallel to the ceiling, hand-tightened into the sprinkler fitting, and then tightened using only the W-Type 6 Sprinkler Wrench (P/N 56-000-6-387) on the wrench flats.
- Recessed pendent sprinklers follow a similar process, but after installing the mounting plate, they are tightened using only the W-Type 7 Recessed Sprinkler Wrench (P/N 56-850-4-001). After ceiling installation, the closure is pushed over the mounting plate until it contacts the ceiling.
- A leak-tight 1/2 in. NPT sprinkler joint requires a minimum-to-maximum torque of 7 to 14 lb-ft (9.5 to 19.0 N·m). Excessive torque can damage the sprinkler.
- It is crucial not to compensate for insufficient adjustment in an Escutcheon Plate by over- or under-tightening the sprinkler; the sprinkler fitting position should be re-adjusted instead.
Obstruction to Water Distribution: Sprinklers must be located in accordance with NFPA 13D, 13R, and 13 obstruction rules, as well as criteria described in Technical Data Sheet TFP490.

Maintenance Features:

Regular Inspection: Automatic sprinkler systems are recommended to be inspected, tested, and maintained by a qualified Inspection Service in accordance with local requirements and national codes (e.g., NFPA 25).
Owner Responsibility: The owner is responsible for maintaining the fire protection system and devices in proper operating condition.
Cleaning: Sprinklers should only be cleaned by gently dusting with a feather duster. Avoid using sprinklers for hanging objects.
Replacement Criteria:
- Sprinklers found to be leaking or exhibiting visible signs of corrosion must be replaced.
- Sprinklers that have been painted, plated, coated, or otherwise altered after leaving the factory must be replaced.
- Sprinklers exposed to corrosive products of combustion that have not operated should be replaced if they cannot be completely cleaned by wiping with a cloth or brushing with a soft bristle brush.
- Any sprinkler damaged by dropping, striking, wrench twist/slippage, or with a cracked bulb or lost liquid from its bulb must be replaced.
- Do not install any bulb-type sprinkler if the bulb is cracked or if there is a loss of liquid from the bulb. A small air bubble (approx. 1/16 in. (1.6 mm)) should be present when the sprinkler is held horizontally.
System Shutdown: Before closing a fire protection system main control valve for maintenance, permission from proper authorities and notification of affected personnel must be obtained.
Escutcheon Integrity: The absence of the outer piece of an escutcheon can delay sprinkler operation in a fire situation.