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Solar Pool Heating Control

Corporate Office:
42 Ladd Street
East Greenwich, RI 02818
(401) 884-6990
(401) 884-1500 Fax

Western Regional Office:
7171 Alvarado Road, Suite 104
La Mesa, CA 91942
(619) 462-4298
(619) 462-4498 Fax

Model GL-235-LV-HV

The model GL-235-LV-HV has two outputs: 1) Selectable low volt-
age output for 12/24 VAC valve actuator. Wire via 3 pin connectors
or terminal block (compatible with older actuators). 2) Isolated con-
tact, high voltage output for 120/240 VAC booster pump or time
clock override. Order sensors and freeze snap switches separately.

Model GL-235-LV

The GL-235-LV is similar to the GL-235-LV-HV, but has a low volt-
age output only. 

Temperature Sensors

All Goldline temperature sensors are 10K Thermistors which are

accirate to +/- 

2N

F. The sensors are double-dip potted in silicone for

maximum protection from moisture.

PC: 

Multi-purpose sensor that can be used for both Solar (surface

mount) or Pool/Water (drill-in plastic piping).

SC-1/4: 

Brass screw-in sensor with 

3

” NPT pipe thread. Screws

directly into drain plug on the pump strainer basket.

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 pro-
tection feature is being used. Both snap switch models operate identi-
cally, however, the GC-1 is designed to meet the highest aerospace &
military specifications.

GC-1: 

Opens at 44

N

+/- 4

N

F, closes at 54

N

+/- 5

N

F (premium)

GC-2: 

Opens at 44

+/- 4

N

F, closes at 54

N

+/- 5

N

F (standard)

5 Year Limited Warranty*

Goldline Controls offers a 5 year limited warranty on all soalr con-
trols and accesories. This warranty covers the repair or replacement
of the control at no cost for the first 36 months. For years 4 and 5,
Goldline will charge a fee of up to 60% of the current list plus ship-
ping charges for repair or replacement.

*SEE WARRANTY STATEMENT FOR COMPLETE DETAILS.

Service You Can Count On

Visit www.goldlinecontrols.com, or call (800) 343-0826 to speak
with a qualified technical support representative. Our technichians
can assist you in selecting the correct controls and sensors for your
system and help troubleshoot any problems after installation.

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 togeth-
er in one box. The “GLC” makes inventory control easier, ensures all
parts arrive at the job site, and components remain protected in facto-
ry-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.

MODEL

GLC-1P-A
GLC-1P-B
GLC-2P-A
GLC-2P-B
GLC-2NP-A
GLC-2NP-B

VALVE

1.5”/2” positive seal valve
1.5”/2” positive seal valve
2”/2.5” positive seal valve
2”/2.5” positive seal valve
2”/2.5” non-positive seal valve
2”/2.5” non-positive seal valve

SENSORS

2 PC sensors
1 PC sensor, 1 SC-

sensor

2 PC sensors
1 PC sensor, 1 SC-

sensor

2 PC sensors
1 PC sensor, 1 SC-

3

sensor

(HV-add HV after the GLC to make combo with GL-235-LV-HV)

Specifications

Power:     

105-130VAC, .5A 50/60Hz.

or 

192-250VAC, .3A 50/60Hz.

Output:    

Low Voltage

12/24VAC,20VA,1.7/.85A
3 pin connectors for both
forward and reverse operation
Model GL-235-LV-HV also has
terminal block connections

GL-235-LV-HV only:

SPST-NO isolated contact
115VAC, 1 HP
240VAC, 2 HP

Sensors:                  

2 required-thermistor, 10K @

25

N

C/77

N

F. (snap switches

recommended if recirculate
freeze protection is used)

On differential:       

4

N

F

Off differential:       

1.5

N

F

High Limit:             

70-104

N

F selectable via

calibrated scale

Recirculate freeze:  

on at 40

N

F, off at 42

N

F

Nocturnal cooling:  

On when collector 6

N

F less than

pool 

and 

pool hotter than high

limit, off when collector 3

N

F

less than pool 

or

pool cooler 

than high limit

Содержание GL-235-LV

Страница 1: ...3NF of the pool tem perature 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 d...

Страница 2: ...eplacement SEE WARRANTY STATEMENT FOR COMPLETE DETAILS Service You Can Count On Visit www goldlinecontrols com or call 800 343 0826 to speak with a qualified technical support representative Our techn...

Страница 3: ...GL 235 Solar Pool Controller Installation OperationManual for models GL 235 LV GL 235 LV HV www goldlinecontrols com 888 921 7665 North Kingstown RI USA LDLINE CONTROLS INC G...

Страница 4: ...s spas and hot tubs These models provide differential temperature control with an adjustable calibrated water temperature high limit Automatic nocturnal cooling for pools that overheat in hot climates...

Страница 5: ...ery important if recirculate freeze protection or nocturnal cooling functions are being used Also this function can be used on systems where the system should operate whenever solar heat is available...

Страница 6: ...protection starts early enough to protect the system The GL 235 is shipped from the factory with recirculate freeze protection disabled the jumper is present but installed on one pin only To activate...

Страница 7: ...n the MANUAL OFF position during cold weather Also note that the switch does NOT turn power off to the GL 235 Troubleshooting No Power Indicator Check main power circuit breakers Check fuse Fuse Repla...

Страница 8: ...SENSOR indicator blinking If the CHECK SENSOR indicator is blinking there may be a possible open circuit or short circuit with the solar sensor Using a voltmeter measure the voltage across the termina...

Страница 9: ...BasicInstallationofGL 235 LV Figure2 7...

Страница 10: ...GL 235 LV HVwithHighVoltageOutputusedforTimerOverride Figure3 8...

Страница 11: ...GL 235 LV HVwithHighVoltageOutputusedforBoosterPump Figure4 9...

Страница 12: ...10 Measuring Voltage of Pool Sensor Use the same method to measure the Solar Sensor Figure5...

Страница 13: ...29 51 19 377 3 30 91 7 164 2 09 131 2 987 1 15 12 58 774 4 27 52 18 870 3 27 92 6 999 2 06 132 2 926 1 13 13 57 014 4 25 53 18 377 3 24 93 6 839 2 03 133 2 867 1 11 14 55 313 4 23 54 17 899 3 21 94 6...

Страница 14: ...warrants its solar control products installed outside of the USA or Canada to be free from defects in material or workmanship under normal use and service for one year from date of the initial system...

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