Solar Hot Water: Differential Temperature Thermostats

Goldline (previously known as Independent Energy) is the industry leader since 1975. Goldline has pioneered all of the advances that make automatic control of solar heating systems easy, accurate, and reliable. We back this up with our 5 year limited warranty (see warranty statement for details).

Domestic Hot Water (DHW) Controls

GL-30

• Differential temperature control
• 8-20ºF adjustable turn-on differential
• 4ºF fixed turn-off differential
• 110-230ºF adjustable high limit
• 120/240 VAC input
• 20A, 2HP output
• LCO includes line cord and outlet
Data Sheet:
Installation/Operation Manual:

• Plug-in temperature display for GL-30
• 3 channels-collector, storage, auxiliary sensor
Data Sheet: See GL-30
Installation/Operation Manual:

Temperature Sensors

• 10K thermistor types
• +/- 0.5ºF accuracy
• use with any Goldline controls
• resistance-temperature chart
Data Sheet

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