Hayward GLC-2P-A Solar Pool Heating Control
GLC-2P-A Solar Pool Heating Control
The GL-235 is designed to meet the need for easy installation, dependable operation, and serviceability. The GL-235 incorporates unique, microprocesser based construction to ensure reliability and accurate performance. The GL-235 offers advanced operating features to provide differential temperature control, selectable high limit, programmable recirculation freeze protection, nocturnal cooling and optional booster pump control.
Goldline Combo (GLC)
The “GLC” package contains everything required to automatically control most solar pool heating systems. The “GLC” provides the industry’s #1 best selling control, valve, actuator, and sensors together in one box. The “GLC” makes inventory control easier, ensures all parts arrive at the job site, and components remain protected in factory- fresh condition. The Goldline “GLC” consists of the GL-235-LV or GL-235-LV-HV control, a 24 VAC actuator, a valve (see chart) and 2 sensors (see chart). For GLC with the GL-235-LV-HV control add HV after GLC in Model number.
|GLC-1P-A||1.5”/2” positive seal valve||2 PC sensors|
|GLC-1P-B||1.5”/2” positive seal valve||1 PC sensor, 1 SC-3 sensor|
|GLC-2P-A||2”/2.5” positive seal valve||2 PC sensors|
|GLC-2P-B||2”/2.5” positive seal valve||1 PC sensor, 1 SC-3 sensor|
|GLC-2NP-A||2”/2.5” non-positive seal valve||2 PC sensors|
|GLC-2NP-B||2”/2.5” non-positive seal valve||1 PC sensor, 1 SC-3 sensor|
Features of the Hayward GLC-2P-A Solar Pool Heating Control
Automatic Heating: If the collectors are warmer than the pool water by 4N or more, and the pool is below the selected desired temperature, the valve will rotate allowing heat collection. This heat collection will stop when the solar sensor falls to within 1.5NF of the pool temperature or the pool temperature exeeds the “desired temperature” set on dial.
Automatic Cooling: (Field selectable option) If the collectors are cooler than the pool water by 6NF or more, and the pool is above the selected desired temperature, the valve will rotate allowing cooling via the solar collectors. The heat dissipation will stop when the collectors rise within 3NF of the pool temperature or the pool temperature is lowered below the set desired temperature.
Single Setting for Desired Temperature: The GL-235 logic is set by a single dial adjustment with the desired pool/spa temperatures clearly indicated. The dial is calibrated with the temperatures from 70NF to a high of 104NF for quick and easy, user-friendly operation. The temperature set indicates set pool/spa temperature, and the GL-235 will automatically determine if the water should be solar heated or cooled, thus maximizing the system capabilities.
Terminal Strip Connections: For input power, and sensor inputs. Controls also have industry standard 3 pin connectors for both forward and reverse valve actuator operation and screw terminal connectors.
LED Indicators: Show the status of the system operation, Four highly visible LED’s show 1) power to the control, 2) power output directing valves and/or pump to collect heat (heating), 3) power output directing valves and/or pump to dissipate heat (cooling), 4) sensor fault indicator shows sensor(s) not operating properly.
GL-235 Valve Output: Rating is the industry standard 24 VAC. A jumper switches the output to 12VAC for compatibility with older valve actuators. Output is fuse protected. Recirculation Freeze Prot: (field selectable operation) turns the GL-235 output ON, directing warmer pool/spa water through the collectors when near freezing temperatures are reached at the collector sensor. The GL-235 will allow recirculation when the collector temperature rises to 42NF. Two 10K Ohm sensors are required for operation. One or more freeze snap switches are recommended if freeze recirculation protection is utilized. Important--see installation instructions before using Recirculation Freeze. System Test Switch: Allows the user to manually override the automatic function of the GL-235 and verify operation.
Model GL-235-LV: The GL-235-LV is similar to the GL-235-LV-HV, but has a low voltage output only.
Temperature Sensors: All Goldline temperature sensors are 10K Thermistors which are accirate to +/- 2NF. The sensors are double-dip potted in silicone for maximum protection from moisture.
Freeze Snap Switches: Goldline recommends the use of one or more freeze snap switches to be wired in series with the solar sensor if the recirculate freeze protection feature is being used. Both snap switch models operate identically, however, the GC-1 is designed to meet the highest aerospace & military specifications.
3 Year Limited Warranty*: Goldline Controls offers a 3 year limited warranty on all solar controls and accessories. This warranty covers the repair or replacement of the control at no cost for the first 3 years.
Also Known As:
GLC 2P A