CENTRAL ELO LH Manual

ELO LH
Quick Response
Extended Coverage Light Hazard
Extra Large Orifice
Recessed Pendent and Pendent
Glass Bulb Automatic Sprinkler
Manufactured by: Central Sprinkler Company
451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Product
Description
The Central Model ELO LH Extra Large
Orifice Recessed Pendent and Pendent
Automatic Glass Bulb Sprinklers are
specifically designed for Extended Cover-
age/Light Hazard as defined by NFPA 13.
They are Listed as Quick Response, up to
18'x18' spacing, and as Standard Re-
sponse, above 18'x18' spacing. The ELO
LH is Listed for smooth flat horizontal
ceilings as are all Extended Coverage
Light Hazard Sprinklers.
The ELO LH provides the maximum in
design flexibility as it has a minimum
separation of only 11'-0" and is Listed for
flows and pressures associated with
16'x16', 18'x18' and 20'x20' spacing.
They are intended for use with hydrauli-
cally designed systems using the flows
and pressures as shown in this literature.
For the purpose of determining the correct
flow and pressure to use in the hydraulic
calculations, all spacing is rounded up to
the next higher category. For example,
17'-6"x15'-0" spacing would be calculated
at the Listed 18'x18' flow and pressure.
The advantage of the ELO LH is the
ability to cover large areas, up to 400
square feet, with pressures that compare
1
to ⁄ " standard sprinklers spaced at their
2
maximum of 225 square feet. For ex-
ample, the ELO LH can cover 20'x20'
spacing or 400 square feet with less
pressure than is required with
klers at 225 square feet. (12.3 vs. 16.1)
The Model ELO LH Sprinkler incorpo-
rates a specially designed deflector that
provides a much greater area of coverage
than standard commercial sprinklers.
The two (2) piece recessed escutcheon
3
assembly provides for ⁄ " of field adjust-
4
ment.
Technical
Data
Model: ELO LH
Style: Recessed Pendent, Pendent
Escutcheon: Model ELO (2-piece)
Escutcheon Part #'s:
850 - Brush Brass
851 - Bright Chrome 848 - Off-White
852 - Bright Brass
Note: In the recessed position, only the
Model ELO (2-piece) Recessed Escutch-
eon may be used. Substitution of other
"recessed" escutcheons may impair the
operating sensitivity and distribution
pattern.
Wrench
Pendent: Part #1073
ELO/ELO/ESFR Combination
Recessed Pendent: Part #1092
Orifice Size: 0.64" (16.3 mm) (ELO)
K-Factor: 11.4 (163.02)
Thread Size: 3
Temperature Rating:
155°F/68°C
200°F/93°C
250°F/121°C
Approvals: U.L., cUL
Maximum Working Pressure: 175 psi
Factory Hydro Test: 100% at 500 psi
Standard Finishes:
Sprinkler: brass or chrome plated
Decorative Finishes: white or black
Escutcheon: brass, chrome plated,
Length: 2 3 ⁄ " (70 cm)
4
1
Width: 1 ⁄ " (3.80 cm)
2
1
⁄ " sprin-
Weight: 4.2 oz. (120 grams)
2
ELO LH
Recessed
853 -White
849 - Black
ELO Offset
⁄ " N.P.T. (19.1 mm)
4
(Available as Standard Response Only)
(Available as Standard Response Only)
painted
white or black painted
5-97
Quick Response
Extended
Coverage Light
Hazard Recessed
Pendent and
Pendent
Sprinkler
No. 3-3.5