752 Series Automatic Change-Over Switch

SPDT control provides automatic change-over of thermostat to operate zone valve on combination hot and chilled water systems

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752-1, 752 Series Automatic Change-Over Switch
Product Category
Hydronic Zone Valves and Temperature Controls
Model Number
752-1
Lead Length
12" With Stripped Ends (without Conduit Connector)
Family
752 Series Automatic Change-Over Switch
Pilot Duty
15A (120/240/ 277 Vac)
Product Category
Model Number
Lead Length
Family
Pilot Duty
Hydronic Zone Valves and Temperature Controls
752-1
12" With Stripped Ends (without Conduit Connector)
752 Series Automatic Change-Over Switch
15A (120/240/ 277 Vac)
Compare
752-2, 752 Series Automatic Change-Over Switch
Product Category
Hydronic Zone Valves and Temperature Controls
Model Number
752-2
Lead Length
12" With Stripped Ends (with Conduit Connector)
Family
752 Series Automatic Change-Over Switch
Pilot Duty
15A (120/240/ 277 Vac)
Product Category
Model Number
Lead Length
Family
Pilot Duty
Hydronic Zone Valves and Temperature Controls
752-2
12" With Stripped Ends (with Conduit Connector)
752 Series Automatic Change-Over Switch
15A (120/240/ 277 Vac)
Compare

Features

  • Epoxy resin seal protects bimetallic disc and Snap-Action contacts from dust, dirt and corrosion
  • Furnished with removable spring clip to attach control to tubing
  • SPDT switch connects heating side of thermostat to two-wire zone valve when hot water is circulated through tubing
  • SPDT switch connects cooling side of thermostat to two-wire zone valve when chilled water is circulated through tubing
  • Curved sensing element provides maximum contact with tubing

Specifications

Connectors
12” red, brown and black leads, 105°C insulated, No. 18 wire
Temperature Settings
Red-Black: open on rise @ 85°F, close @ 70°F, Red-Brown: close on rise @ 85°F, open @ 70°F
Operating Temperature
221 deg. F maximum

Documents & Drawings

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