Competitive Cross Reference

Series 751P/752P
Competitive Cross Reference
These controls are used as the primary LWCO’s on hot water heating boilers and can be used as the
secondary LWCO on steam boilers. The following chart can be used to identify which model to purchase
to replace an existing competitor or older McDonnell & Miller control.
McDonnell & Miller Hydrolevel TACO Honeywell
752P-MT-24
PS-852-M-24
PS-851-M-24
500, 700
LTM0243N-1
752P-MT-U-24
752P-MT-SP-24
PS-852-M-SP-24
500SV, 700SV
OEM-24MSV
OEM-24MCSV
LTM0243S-1
751P-MT-120
900M, 901M, 902M
PS-851-M-120
550, 750
OEM-170M
OEM-170MC
LTM1203N-1 RW700B1039
751P-MT-U-120
PS-851-M-U-120
550P
OEM-170MCP
751P-MT-SP-120
PS-851-M-SP-120
550SV, 750SV
OEM-170MCSV
LTM1203S-1
Features and functions that make the Series 751P/752P superior in performance over competitors’
controls include the following.
• Self-cleaning Probe
This is available only on McDonnell & Miller probe type controls which
reduces probe maintenance to every five years instead of annually.
• Test Button
Standard on all controls to allow control to be tested without draining the boiler or
system.
• ‘Green’ Power ON & ‘Red’ LWCO LED’s
Standard on all units to give visual indication that the
unit is powered up and when a low water condition is detected.
• 20,000 ohms Sensitivity Rating
Highest published rating and has proven to work reliably in
applications with up to a 50/50 glycol mixtures.
Additional product information can be found in the General Catalog and IOM (MM-283) which can be
viewed in the M&M website at http://www.mcdonnellmiller.com/
.
Jul
y
30
,
2010
TB10-02