Xylem MM 277G Model RB-24E-S , Model RB-24E-A , Model RB Uživatelský manuál stáhnout pdf

INSTRUCTION MANUAL

Model RB-24E-S

Model RB-24E-A

Model RB-24E-L

Conductance Type

Low Water Cut-Off

with Universal Wiring Harness

For Residential

24 VAC Hot Water Boilers

• Before using this product read and understand instructions.

• Save these instructions for future reference.

• All work must be performed by qualified personnel trained in the proper application, instal-

lation, and maintenance of plumbing, steam,hot water and electrical equipment and/or

systems in accordance with all applicable codes and ordinances.

• To prevent electrical shock, turn off the electrical power before making electrical connections.

• This low water cut-off must be installed in series with all other limit and operating controls

installed on the boiler. After installation, check for proper operation of all of the operating

controls, before leaving the site.

• We recommend that secondary (redundant) Low Water Cut-Off controls be installed on all

steam boilers with heat input greater than 400,000 BTU/hour.At least two controls should

be connected in series with the burner

should the boiler experience a

low water cut-offs should be

calibration and performance.

control circuit to provide safety redundancy protection

low-water condition. Moreover, at each annual outage, the

dismantled, inspected, cleaned, and checked for proper

California Proposition 65 warning! This product contains chemicals known to the

•

state of California to cause cancer and birth defects or other reproductive harm.

Previous controls should never be installed on a new system. Always install new

•

controls on a new boiler or system.

CAUTION:

A more frequent replacement interval may be necessary based on the condition of

of installation or two (2) years from the date of manufacture.



Failure to follow this warning could cause property damage, personal inj ury or death.

•

the unit at time of inspection. McDonnell & Miller s warranty is one (1) year from date

MM-277G

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Strany 1 - Low Water Cut-Off

INSTRUCTION MANUAL Model RB-24E-SModel RB-24E-AModel RB-24E-L Conductance Type Low Water Cut-Offwith Universal Wiring HarnessFor Residential24 VAC Ho

Strany 2 - INSTALLATION

OPERATION The Model RB-24E Low Water Cut-Off is specifi-cally designed to provide burner cut-off if there is an unsafe water loss, which can result fr

Strany 3 - "

STEP 1 - Electrical Wiring Options A WARNING '"' . ~ ", • To prevent electrical shock, turn off the electrical power before making

Strany 4

RB-24E-S Transformer ‘Y’ Harness with GREEN Color TubingA. Remove connector of boiler wiring harness from Aquastat transformer connector.B. Plug conne

Strany 5 - RB-24E-L Connector

RB-24E-L Connector with Gray Color Tubing for Control Panel Connection a. Remove jumper plug from plug-in connector on control panel. b. Plug connec

Strany 6 - --I-+-H--I

STEP 2 - Installing the Low Water Cut-Off Determine where to install the probe control based on the following requirements: 1. If tappings are provide

Strany 7 - STEP 4 - Testing

STEP 4 - Testing a. Before filling the system, turn on the electric power to the boiler. The low water cut-off's green "Power On" LED s

Strany 8 - MAINTENANCE

Xylem Inc. 8200 N. Austin Avenue Morton Grove, Illinois 60053 Phone: (847) 966-3700 Fax: (847) 965-8379www.xyleminc.com/brands/mcdonnellmillerMcDonnel

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