SunEarth Solar Control GL-30-FRX
SunEarth Solar Control GL-30-FRX is backordered and will ship as soon as it is back in stock.
The SunEarth GL-30-FRZ Solar Control is listed by SunEarth as a 120/240 VAC solar controller. It is associated with the GL-30 differential-control family, which operates solar heating equipment according to collector and storage temperatures.
The GL-30 manufacturer documents describe LED status indicators, adjustable differential control, a storage high-limit setting and selectable freeze recirculation. The digital temperature display is an optional accessory, not a verified built-in backlit LCD.
Key Features
| Feature | Details |
|---|---|
| Differential temperature control | GL-30 family control compares collector and storage sensor temperatures to operate compatible solar heating equipment. |
| 120/240 VAC listing | SunEarth identifies GL-30-FRZ as a 120V–240V solar control. Follow the supplied unit's voltage-specific wiring instructions. |
| LED operating indicators | The GL-30 documentation identifies power, solar operation and freeze-recirculation indicators. |
| Adjustable differential and high limit | GL-30 family settings support system commissioning; confirm the exact supplied revision. |
| Selectable freeze recirculation | The GL-30 family manual describes jumper-enabled recirculation. Confirm the FRZ package and jumper configuration before use. |
| Manual test switch | GL-30 documentation describes ON, AUTO and OFF operating positions. |
Technical Specifications
| Specification | Details |
|---|---|
| Listed supplier | SunEarth |
| Ordering part number | GL-30-FRZ |
| Product type | Solar differential temperature control |
| Reference controller family | GL-30; confirm exact supplied model, revision and package contents with SunEarth. |
| Listed supply | 120/240 VAC |
| Frequency | GL-30 family manual: 50/60 Hz. Verify against the supplied unit. |
| Sensor type | GL-30 family reference: 10 kΩ thermistors at 77°F / 25°C. |
| Sensors included | Verify with Manufacturer for the GL-30-FRZ package. Two included sensors have not been confirmed. |
| Turn-on differential | GL-30 family reference: adjustable 8°F to 24°F. |
| Turn-off differential | GL-30 family reference: fixed 4°F. |
| Storage high-limit setting | GL-30 family manual: adjustable 110°F to 230°F. Confirm applicability and required system settings. |
| Display | LED status indicators. Optional TD-GL digital temperature display is described separately in GL-30 documentation; inclusion not confirmed. |
| Freeze recirculation | Selectable in GL-30 family documentation; not a verified adjustable 32°F–50°F setpoint. |
| Relay and connected-load ratings | Verify with Manufacturer against the supplied unit's nameplate and applicable manual. |
| Power consumption | Verify with Manufacturer; the supplied 5 VA value is unverified. |
| Enclosure and ambient limits | Indoor, weather-protected mounting is specified for the GL-30 family. Confirm enclosure classification and exact ambient ratings. |
| Product dimensions | Verify with Manufacturer for the supplied GL-30-FRZ revision. |
| Product weight | Verify with Manufacturer. |
| Warranty | Confirm current written coverage with SunEarth. Historical GL-30 literature does not establish current GL-30-FRZ warranty terms. |
Product Highlights
- SunEarth ordering reference: GL-30-FRZ, listed for 120/240 VAC.
- Documented controller family: GL-30 manufacturer literature is available for installation and operating review.
- System matching: Confirm the supplied controller, compatible sensors, freeze-recirculation configuration and electrical load requirements before ordering.
Technical Documents & Manufacturer Image
- Goldline GL-30 Manufacturer Data Sheet (PDF)
- GL-30 / GL-30-LCO Manufacturer Installation Manual (PDF)
-
SunEarth 2026 Product Catalog (PDF)
Installation information: Use the instructions and ratings applicable to the exact supplied unit. Freeze recirculation relies on correct system design, sensor placement and electrical power; it does not provide freeze protection during a power failure or establish suitability for prolonged freezing conditions.
SunEarth Solar Control GL-30-FRX
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Let customers speak for us
Price was right
This is a great unit for anyone who is on a well!!
Great pump and great price. I actually ordered from a human being and they were great
Very nice expansion tank. Mine is a 16 gallon. Has feet so it will sit on the floor next to your boiler and doesn’t have to be mounted on the wall.
It’s sturdy enough to support your Air Separator, Pressure Regulator and Backflow Preventer.
I recently installed my new 29kw BTH Ultra boiler and so far I am really impressed.
We live in an old 2 story brick farmhouse built in 1814! This unit replaced an Outdoor Wood Boiler with a 750 gallon tank. It was about 30 years old and last winter the tank rusted thru and busted.
We have 11 cast iron “American Radiators” and they heat the house well.
The BTH will heat all the water to 150 degrees in about an hour and we don’t have to build a fire and wait hours.
The most impressive part is the Outdoor Temperature sensor. When it’s not that cold outside, the unit doesn’t turn on all the elements at once and slowly heats the water which saves a lot of electricity in the warmer months!
I’m looking forward to see how well it does when the temperature drops between 0-30 and it snows and I don’t have to go outside several times a day and load wood. I’m confident the Ghost Rider will perform!
Thanks.
The boiler works great easy install. But the tech support we got hold of was in French so not a lot of help.manual was easy to follow on wiring
Easy purchase - exactly what I needed
Plumber was very happy with it. So are we.
I’ve been using Everflux for some years now and it’s simply the best there is.
Excellent product for descaling tankless water heater.
Once again, great quick service
Good go,, 👍👍👍
Great service. Happy to find the products I needed.
Great place to order from. No complaints.
Had everything i needed and step by step directions!
