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Series 101-A

Electric Water Feeder

Applications:

For use on low pressure boilers with cold water feed.

The Series 101-A can be used with mechanical or

electronic low water cut-off controls.

• 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, and electrical equipment and/or systems in

accordance with all applicable codes and ordinances.

• Boiler manufacturer schematics should always be followed. In the event that the boiler

manufacturer’s schematic does not exist, or is not available from the boiler manufacturer,

refer to the schematics provided in this document.

• To prevent water damage check to make sure there is adequate floor drainage capacity.

Check all components in the system to insure that they will not leak in the event of an

overfeed condition.

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

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

NING

TION

WARNING

Do not use automatic water feeders with manual reset LWCO’s.

Failure to follow this warning could cause flooding, property damage,

personal injury or death.

WARNING

SPECIFICATIONS

Maximum Water Pressure: 150 psi (10.5 kg/cm

)

Maximum Boiler Pressure: 25 psi (1.76 kg/cm

)

Maximum Boiler Size: 5000 sq. ft. EDR

2,350,000 BTU/HR

Output Capacity

Maximum Water Temperature: 120˚F (49˚C)

Flow Data

Pressure Differential Flow Rate

psi (kg/cm

) gpm (lpm)

5(.4) 1.4 (5.3)

10 (.7) 1.7 (6.4)

20 (1.4) 2.1 (7.9)

40 (2.8) 2.9 (11.0)

60 (4.2) 3.4 (12.9)

80 (5.6) 4.0 (15.1)

Electrical Ratings

Model Voltage Full Load

101A-120 120V 40 VA

101A-24 24V 40 VA

NOTE: 101A-24 includes a transformer with

120 volt primary and 24 volt/50VA secondary.

McDonnell & Miller

Installation & Maintenance

Instructions

MM-307(F)

with

QUICK

CHANGE

Cartridge

1 2 3 4 5 6 7 8

Inhaltsverzeichnis

Seite 1 - McDonnell & Miller

Series 101-AElectric Water Feeder®Applications:For use on low pressure boilers with cold water feed.The Series 101-A can be used with mechanical orele

Seite 2 - INSTALLATION

FLOW ARROW6" (152mm)6" (152mm)6"(152mm)6"(152mm)2Determine where to install the water feederbased on the following requirements:a.

Seite 3

3• All work must be performed by qualified personnel trained in the proper application, installation, and maintenace of plumbing, steam, and electrica

Seite 4 - IMPORTANT

BURNERCIRCUITJUMPER120 VACSUPPLY1234NEUTRALHOT101AWATER FEEDERAB67 LOW WATERCUT-OFF4For McDonnell & Miller Model 101A-120 Water Feeder and Series

Seite 5

5h. Install wire (A) from water feeder to 120 volt Neutral wire.i. Install wire (B) from water feeder to terminal 4 of the low water cut-off.j. Instal

Seite 6

61 2 3 4 5101AWATERFEEDERHOT NEUTRAL120 VAC SUPPLYJUMPERBAPS-801-120LOW WATER CUT-OFFBURNERCIRCUITFor Model 101A-120 Water Feeder and Model PS-801-120

Seite 7 - TROUBLESHOOTING

7TESTINGBurner Off (Cold) Test1. Manually fill boiler until water level in the sight glass is more than half filled.2. With the room thermostat set at

Seite 8

MAINTENANCESCHEDULE:Annually•Disassemble and inspect/clean strainer screen.Replace if screen is torn or not able to be cleaned.• Remove and inspect/cl