Low Water Cutoff Brochure and Submittal

Low Water Cutoff
Submittal Data Information
Model LF Dimensions
Model LTA-2 Dimensions
Submittal Data # 101-081
Supersedes: 10/01/08
Effective: 01/28/11
Taco Inc., 1160 Cranston Street. Cranston, RI 02920 / [phone] / Fax [phone]
Taco (Canada) Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8 / [phone] / Fax [phone]
www.taco-hvac.com
Model LTR Dimensions
Listings/Approvals
UL GUIDE (MBPR) for Limit Controls per UL Standard 353 Limit Controls
UL GUIDE (MBPR7) Controls, Limit Certified for Canada CSA Standard C22.2
UL GUIDE (MCUR2) for Electrode Assemblies – Component (remote probes)
FM Approved (LF only)
Fully complient with CSD-1 requirements
Material of Construction
LTA-2 and LF Control Unit: NEMA Type 1(For indoor use only). Formed sheet metal
with powder coat/plated finish enclosure, knock-outs for 1/2” conduit fittings.
LTR Unit: UL 94 V0 rated engineered plastic enclosure
Remote Probe: NEMA Type 4. Drawn sheet metal with powder coat/plated
finish enclosure. Opening for 1/2” conduit fitting.
All models are not for use in hazardous locations
Performance Data
Category
Maximum
Pressures
Steam
Maximum
Pressures
Hot Water
Maximum
Ambient
Temp.
Delays
Probe
Sensitivity
Control Power
Consumption
Input Supply
Voltage
LF Model
250 psi (17.6 kg/cm
2
)
250 psi (17.6 kg/cm
2
)
@250˚F (121˚C)
150˚F (66˚C)
Automatic
20K Ohms,
extended operation
to 40K Ohms
3VA @ 120VAC,
3VA @ 24VAC
120VAC, 24VAC*
LTA-2 Model
NA
250 psi (17.6 kg/cm
2
)
@250˚F (121˚C)
150˚F (66˚C)
N/A
20K Ohms,
extended operation
to 40K Ohms
2.8VA @ 120VAC,
2.8VA @ 24VAC
120VAC, 24VAC*
LTR Model
N/A
160 psi (11.2 kg/cm
2
)
@ 250˚F (121˚C)
120˚F (49˚C)
N/A
20K Ohms,
extended operation
to 40K Ohms
1.5VA @ 24VAC
24VAC*
*24VAC supplied by a Class 2 power source
Remote Probe Dimensions