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Related Manuals for Xylem McDonnell & Miller 64 Series
Summary of Contents for Xylem McDonnell & Miller 64 Series
- Page 1 INSTRUCTION MANUAL MM-200REVI 245632...
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Page 2: Installation
INSTALLATION – Model 64 – For Steam Boilers with 1” (25mm) Equalizing Lines TOOLS NEEDED: One (1) flathead screwdriver and two (2) pipe wrenches. STEP 1 - Determine the Location of the Low Water Cut-Off a. Whether the gauge glass is mounted directly into the boiler or on an independent water column, the cut-off line on the 64 body casting should be mounted 1/2"... - Page 3 INSTALLATION – Model 64 – For Hot Water Boilers with 1" (25mm) Equalizing Lines TOOLS NEEDED: One (1) flathead screwdriver and two (2) pipe wrenches. STEP 1 - Determine the Location of the Low Water Cut-Off a. The line on the casting of the model 64 must be installed above the lowest permissible water level determined by the boiler manufacturer.
- Page 4 INSTALLATION – Model 764 – For Steam or Hot Water Boilers TOOLS NEEDED: One (1) flathead screwdriver and two (2) pipe wrenches. STEP 1 - For Steam or Hot Water Boilers where 2 1/2” (65mm) Tapping is Provided a. See figure 1. The 2 1/2" (65mm) tapping on DO NOT REDUCE the boiler has to be above the minimum safe THIS 2 1/2"...
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Page 5: Step 1 - Preparing The Boiler
INSTALLATION – Model 64-A – For Steam Boilers Using Quick Hook-up Fittings TOOLS NEEDED: One (1) flathead screwdriver, two (2) pipe wrenches, and an adjustable wrench. STEP 1 - Preparing the Boiler a. Remove gauge glass and its trim from the boiler. STEP 2 - Installation of the Model 64-A a. -
Page 6: Wiring Instructions
Wiring Instructions WARNING • 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 limit and operating controls, before leaving the site. -
Page 7: Wiring Schematic
Diagram 1 Diagram 2 SCHEMATIC OF TWIN SWITCH INTERNAL OPERATION USED AS MAIN LINE SWITCH NORMAL WATER LEVEL NEUTRAL WIRE TO BURNER HOT WIRE FEEDER OR ALARM SAFETY OPERATING LEVEL SWITCH HOT WIRE TO ALARM LOW WATER CUT-OFF NEUTRAL WIRE OPERATING LEVEL Diagram 3 USED WITH MODEL 101 ELECTRIC... - Page 8 Xylem Inc. 8200 N. Austin Avenue Morton Grove, Illinois 60053 Phone: (847) 966-3700 Fax: (847) 965-8379 www.mcdonnellmiller.com McDonnell & Miller is a trademark of Xylem Inc. or one of its subsidiaries. © 2015 Xylem Inc. MM-200REVI September 2015 Part No. 245632...