Product Overview

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Please see datasheets for complete technical specications available online at heating.danfoss.us.
Boiler Return Protection, Solid Fuel & Solar Control
BOILER RETURN PROTECTION, SOLID FUEL &
SOLAR CONTROL
ESBE VTC511 Thermostatic Valves are used to protect boilers from return temperatures that are too low and to eciently
load accumulation tanks. *Required thermostats ordered separately. Order one valve body and one thermostat to assemble a complete valve.
VTC Valves Code No. Series
Description
Connection
Cv
Valve
Housing
Size Type
193B1700 VTC511 1"
FNPT
10.4
Cast Iron
193B1701 VTC511 1-1/4" 16.2
VTC Thermostats Code No. Series Description Opening Temperature Typical Piping
193B1702 VTC511 Thermostat 122°F (50°C) Return
193B1703 VTC511 Thermostat 131°F (55°C) Return
193B1704 VTC511 Thermostat 140°F (60°C) Return
193B1709 VTC511 Thermostat 149°F (65°C) Supply
193B1705 VTC511 Thermostat 158°F (70°C) Supply
193B1706 VTC511 Thermostat 167°F (75°C) Supply
ESBE ATA draft regulator is a self contained thermostatic expansion control device intended to regulate the temperature
of solid fuel boilers without requiring any electrical installation or complicated linkage. The thermostatic control head senses the boiler
temperature and regulates the air damper position, controlling combustion air ow.
ESBE ATA Code No. Conn. Size Lifting Force
Lifting
Stroke
Chain
Length
Regulating Range
065B8900 3/4” NPT
2.2 Pound-
force
(10N)
2.2
(55 mm)
5.25 ft.
(1.6 m)
95° - 203°F
(35° - 95°C)