Description
McDonnell & Miller WFE-24 is a universal, electronic, field-adjustable 24V water feeder for steam & hot water boiler systems (and other applications), compatible with both electronic (probe type) and mechanical (float type) low water cut-offs. The feeder adds water to the system upon receiving a call from LWCO (must also be 24V) in selected dwell (wait)/feed cycles (selectable via DIP switch board inside the valve) – ensuring safe water levels and minimizing flooding risks. External button for manual water feed. Includes sweat adapters for connecting to 1/2″ copper pipe.
Cross-References:
- McDonnell & Miller: WF2-U-24V , WF2-2-24
- Hydrolevel: VXT-24
- Taco: EWF024-1
- Honeywell: VW800A1004
Features:
- Universal compatibility with all Low Water Cut-Offs (LWCOs) – probe and float types
- Manual water feed button
- Four ON/OFF dwell/feed cycles with time limit to choose from – to meet individual system requirements and reduce the risk of flooding
- 1, 2 or 4 GPM feed rate – can be changed with included orifices
- Multi-color LED status indicators
- Ready to add water when given the signal from LWCO
- Front access cover and electrical knock-outs on the side for easy wiring
- Includes sweat adapters for connection to (1/2″) copper tubing
- Built-in removable strainer
- cULus listed
Technical Specifications:
- System Type Compatibility: Mechanical & Electronic Low Water Cut-Offs
- Connection: 3/8″ NPT
- Feed Rate: 2 GPM (Standard), changeable to 1 GPM or 4 GPM with included orifices
- Switch Positions: 4 “ON/OFF” feed cycles (Immediate – 0 sec. dwell/300 sec. feed/1 cycle, 60 dwell/60 feed/5 cycles, 30 dwell/270 feed/1 cycle and 120 dwell/180 feed/1 cycle) – see specs file for details
- Electrical Specs: 24V, 60 Hz, 15 VA (Power Consumption)
- Max Pressure: 15 psi (Boiler side), 150 psi (Water supply side)
- Max Water Temperature: 120°F
- Max Ambient Temperature: 100°F
Warranty:
1-year warranty from the date of installation; 2-year warranty from the date of manufacture
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