Instructions / Assembly

S T E A M B O I L E R C O N T R O L S
Water Feeder – Residential
Model VXT-24 and VXT-120
•
Universal Compatibility
• Works with all major probe and float-type low water
cut-offs.
•
Digital Feed Counter
• Continually tracks and displays the amount of make-
up water fed into the boiler – essential for diagnos-
ing system leaks that can
severely shorten the life of
the boiler.
•
Call-For-Feed Indicator
• Illuminates during feed signal from the LWCO
•
Programmable Feed Delay Settings (30 Sec. to 10 Min)
• Helps prevent flooded boilers. Allows time for condensate to return to boiler before initiating
feed cycle – ensuring that additional water is needed.
•
Programmable Feed Amount Settings (LWCO and 1-5 Gal)
• With the LWCO setting selected, the VXT raises the water level to low water cut-off.
The 1 to 5 Gallon settings can be selected to fine-tune the VXT to restore the normal operating
water level above the low water cut-off.
•
Manual Feed Button
• Allows for manual feeds with the touch of a button.
•
Underfeed Protection
• If one feed cycle is not sufficient to restore boiler operation, the
VXT will delay and feed one additional cycle.
•
Lock-Out Flood Protection
• Locks-out after two consecutive feed cycles to prevent flooding.
MODEL VOLTAGE DESCRIPTION/OPERATION
VXT-24 24 VAC Upon a feed signal from low water cut-off, the VXT feeder delays (from
VXT-120 120 VAC 30 seconds to 10 minutes) to allow condensate to return to boiler. If make-up
water is required after the delay period, the VXT will initiate a feed cycle. The
VXT can be set to feed to the level of the low water cut-off or can be set from 1
to 5 gallons to raise the water level above the cut-off to the normal operating
level. The digital feed counter tracks all water fed into the boiler including water
added using the Manual Feed Button.
U.S. Patent No. 6,688,329; 7,093,611; 6,926,028
Specifications VXT-24 VXT-120
Power Consumption 10 VA 15 VA
Max. Fluid Temperature 150° F 150° F
Flow Rate 1 GPM 1 GPM
Fittings 1/2" Sweat 1/2" Sweat
See VXT video at www.hydrolevel.com
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Hydrolevel Catalog 2018 Page 13